Gearshift control system in automatic transmission

FIELD: transport.

SUBSTANCE: proposed system comprises gearshift element including rod and lever parts, gearshift fork parts, multiple rod elements of gearshift mechanisms jointed to said fork gearshift parts. Lever part move to select and shift gear and gets pressed against selected gearshift ledge element. Every said element comprises a separate tooth-like ledge. Said lever part moves to selection axis and rotates about the latter to exert force in gearshift direction on one side of selected element tooth-like ledge and to exert force in gearshift direction on opposite side.

EFFECT: reduced gearshift time interval.

5 cl, 14 dwg

 

The present invention relates to a system for shift control in an automatic transmission provided in the kinematic chain of the vehicle.

There is an automated manual transmission, in which the kinematic chain of the vehicle as the transmission is not used torque Converter.

This automated manual transmission eliminates the need for the torque Converter by actuating the shift control (selection and implementation of switching gears), as well as on and off of the clutch, which in the gearbox with manual operation must be performed by the Executive mechanism. For example, as shown in figa and 8B, the system control switching of an automatic transmission includes a rod 100 gear, which can move in the direction of the sf switch in the se direction selection switch 120 tabs, performed, respectively, on one of the many parts of the rods 110 of the gear, which are placed in the direction se thus to act in the radial direction outwards from him, and forks 131, 132, 133 switch, which are connected as a unit with other parts of the rods 110 of the gear, the fit is significant.

In addition, the control finger (arm part 140 is placed on the rod 100 of the gear so that to speak of him in the radial direction, and each switching ledge 129 pair of ends 121 of the grip is designed in such a way that they shared the gap in the direction of the sf switch.

In an automated mechanical transmission arranged as described above, by moving the rod 100 of the gear by the actuator (not shown) a pair of ends 121 of the capture of one of the rods 110 of the gear selectively moved in one or the other direction sf switching through control finger 140, so that the plug 131 of the switch, which is connected with the rod 110 moves the toothed wheel, opposite the plug 131 of the switch.

In this regard, was developed automatic dual clutch transmission, in which two clutch placed between the automatic transmission, such as those described above, and the engine as a source of power. This automatic transmission includes first and second main shafts, and one and the other of the main shaft to change the speed of rotational power transmitted to them with attached clutches for transmission on the opposite shafts to which they are addressed, and the rotation changes the military rate is transmitted from each of the opposite shafts on the side of the output gear of the transmission. Automatic transmission with double clutch when shifting from a state in which one gear is engaged with one of the clutches via the first main shaft, switches to a state in which the desired gear is in engagement with the other clutch via the second main shaft, and when this happens, it is possible to exclude the neutral state during the switching of the transmission by turning off one of the clutches while maintaining activate a different clutch with a given gear that makes it possible to implement a smooth shift without any interruption of the power flow during the gear shift.

In the system control gear used in the transmission described above, for example, as shown in figa, it is assumed that the gear change is made from the fourth gear which is the gear currently engaged, on a given gear, such as first gear, while maintaining a state in which the current gear remains engaged. Immediately after this, as shown in figv, while switch on state of the clutch on the clutch side of the set gear, there is the separation from the previous gear (in this case, h is tortoi gear) when gear change. To describe it by reference to the place indicated in the drawing in phantom line with two strokes, when the Department of gear from the previous position of the transmission is required to quickly perform the following operations: first, the operation (1), in which the control finger is offset from the position specified gear (first gear) in the direction of choice, the switching operation (2), in which the control finger is returned to the neutral line N, the selection operation (3), in which the control finger is moved in the direction of the gear (fourth gear), the switching operation (4), in which the managing the finger is moved in the direction of the gear (fourth gear), the selection operation (5), in which the control finger reaches the position of the gear (fourth gear) and the operation of the Department when switching transmission (6), in which the control finger separates gear, shifting gear (fourth gear) in its neutral position (indicated by the dash-dotted line with two dashes).

In addition, in JP-A-2001-304411 described automatic transmission, in which a pair of ends of the grip is made at each switching ledge thus, to divide between a wide gap in the direction of the switch, so that the control finger can fit between the pair of ends of the grip on a switching lug C is given gear, which is in the neutral position only by being moved in the direction of choosing from a position between the pair of ends of the grip on a switching protrusion, which is located in the offset condition, so as to facilitate the movement of the switching element.

Thus, in the automatic transmission with double clutch, since moving the gears on a given gear and separating gear from the pinion in engagement with which it is held must be in the process of switching gears in this manner, movement of the control finger 140 becomes complicated, causing increasing duration of shift, and in this area requiring improvement.

In addition, similar to the solution described in JP-A-2001-304411 so that the lever part (control finger) of the switching element can enter between the pair of ends of the grip when the lever portion moves directly toward each of the pairs of ends of the grip should be placed in such a way as to be separated from each other by relatively wide gap. In this case, as shown in Fig.7, if the interval L1 between the pair of ends of the grip 121 is increased, the lever portion 140 of the switching element presses on the end of the grip 121 so that the lever portion 140 leans heavily in the direction of the plumage is your. When this occurs, it is assumed that the force acting on the end 121 of the grip under the influence of the torque T of the steering rod 100 is the tangential force F, the distance from the contact point between the lever part 140 of the switching element and the end of the grip 121 to the axial line of the steering rod 100 is the distance L2, and the angle of the line connecting the contact point and the axial line in the direction of the switch is the angle α, and a component of force tangential force F in the direction of the switch, and the component force P1, which represents the force to move the end of the grip 121 in the direction of the switch is determined using the following formula (1)

In the above formula (1) found that the distance L2 is essentially constant regardless of the angle α, the component force P1 decreases with increasing angle α in the range from 0 to 90 degrees. In addition, it is found that the distance L2 additionally decreases with increasing angle α in the range from 0 to 90 degrees. Therefore, if the interval L1 between the pair of ends of the grip 121 is increased, as in JP-A-2001-304411, the power P1, which presses on the end of the grip 121 in the direction of switching is reduced, and it becomes difficult to move the switching protrusion, which is connected with the end for the Vata 121, in the direction of the switch with sufficient efficiency.

The invention

Therefore, the aim of the invention is to provide a control system of an automatic transmission with a variable speed switch, which can simplify the process of moving the lever part, which is made in one piece with the switching element, the switching time of the transfer in such a way as to increase the control speed change, and, in addition, which can maintain a relatively high pressure applied in the direction of movement of the lever part thus to reduce the time control speed change.

To achieve this goal, a system of control gear in the automatic transmission, which contains:

the switching element includes a rod portion, which is located so that its axis selection is oriented in the direction of selection, and includes a lever part, which is executed on the core part so that it protrudes from her radius;

forklift parts switch designed to switch gears within the gear train with variable speed;

many elements of the rods of the switching mechanisms connected with forklift parts switching and saving is the R thus, that the axis of the shift rod parts rod is oriented in the direction of the switch; and

the switching elements of protrusions protruding from the rod elements of the switching mechanism and faces the lever part,

when this lever portion of the switching element is moved to select and switch gear is attached to the selected element switching tabs, so that switching of the transmission to a predetermined gear is provided forklift part of the switch, which is connected with the switching element of the ledge, which provide pressure

the switching elements of the projections include the details in the form of racks, and

the lever portion moves in the direction of the axis of selection to select the switching ledge followed by a rotation around the axis selection

for the application of pressure in the direction of the switch with one hand-shaped front part of the selected switching element protrusion in such a manner as to cause the side forklift part of the switching element of the rod of the switching mechanism associated with the switching element of the ledge, the operation switch, and

for the application of pressure in the direction of the switch with the other hand-shaped front part in such a manner as to cause the side forklift part of the switching element, the current of the switching mechanism, associated with the switching element of the ledge, the operation of the end key.

Having the form of a rack detail of the switching element protrusion may have a pair of side surface sections that are oriented in opposite directions in the direction of the switch. During the application of pressure through the lever part from one of the side surface sections having the form of a front part of the switching element protrusion forklift part of the switching element of the rod of the switching mechanism, which is connected with the switching element of the projection can be applied to perform the switchover operation. When pressure is applied from the side of the other surface area, forklift part of the switch can be used to perform the operation off.

Having the form of a rack detail of the switching element protrusion may protrude out of the rod element of the switching mechanism is essentially perpendicular to the direction of the switch. Having the form of a rack detail of the switching element of the projection can be represented in such a way that the Central axis in the direction which is shaped rack detail of the switching element of the projection intersects the axis of selection, which is the axis of rotation of the lever element, when the forklift part of the switch to the Oia element of the rod of the switching mechanism is in the neutral position.

Automatic transmission may contain multiple gears, which are divided into first and second groups, and the first and second main shafts, which are connected with the first and second groups, respectively. Both the main shaft can be connected with the shaft for transmitting the driving force of the engine through the dual clutch.

Lever element intended for switching the respective gears of the first group may be formed at the first position on the rod part, and a lever element, which is designed to switch the respective gears of the second group may be formed in the second position on the rod part. The first position and the second position can be separated from each other by a specified amount in a specified direction.

In order to achieve the objectives of the invention, also created the block shift control, which contains:

rod, passing in the direction of choice and provided with a lever extending radially from the rod and which can be rotated around the axis of the rod;

rod, passing in the direction of the switch, which moves the switching protrusion,

when this switching protrusion has first and second surfaces oriented in opposite directions in the direction of the switch, and

when is overate lever for pressing on one of the first and second surfaces, the switching operation of the transmission or operation of turning off the transfer.

The present invention will become clearer from the detailed description given below and from the accompanying drawings, which are given purely as illustrations and are not intended to limit the scope of the present invention. In the drawings:

figure 1 is a schematic block diagram of the kinematic chain of the vehicle, equipped with a system for shift control of an automatic transmission, as one embodiment of the invention;

figure 2 is a schematic block diagram of a control system of shifting from figure 1, when viewed from above;

figure 3 - schematic perspective view of part of the control gear with figure 1;

figa and 4B is an explanatory diagram of the operation lever side of the switching element and the protruding part of the rod of the switching mechanism used in the control system gear with figure 1. On figa shows the position at the time when the switching operation of the transmission, as In figure 4 shows the position at the time when the switching operation of the transmission in the opposite direction of the first operation gear;

figa and 5B is an explanatory diagram of the operation lever parts and protruding parts that are performed during the increase of the transmission from the first gear to the second gear via the system control the population shift from figure 1. On figa shows a view in plan, on FIGU shows a side view;

figa and 6B is an explanatory diagram of the operation lever part and the protruding part to be performed during the increase of the transmission with the fifth gear to the sixth gear control gear with figure 1. On figa shows a view in plan, on FIGU shows a side view;

7 is an explanatory diagram of the operation lever part and the protruding part of what is happening at a time when a gear change is performed by the existing system gear control;

figa and 8B is a schematic operation lever part and the protruding components of the shift control according to the prior art. On figa shows a view in plan, on FIGU shows a side view; and

figa and 9V - working schemes lever part and the protruding part of what is happening at a time when the system shift control switches from the fourth gear to the first gear. On figa shows a view in plan, on FIGU shows a side view.

Next will be described with reference to figures 1 and 2 system shift control of an automatic transmission as an embodiment of the invention.

As shown in figure 1, the automatic transmission 1 is an automatic dual clutch transmission and includes two clutch 2, 3, zaglavnyh shaft 4, 5, is placed concentrically relative to each other, and two opposite shaft 6, 7. Power is transmitted to the first main shaft 4 via the first clutch 2 from transmitting the driving force of the shaft 9, which transmits the driving force from the engine 8, while power is transmitted from the transmitting driving force of the shaft 9 on the second main shaft 5 via the second clutch 3. It should be noted that the switching on and off of the two clutches is not shown here, the control circuit (e.g., hydraulic, electric or mechanical control scheme).

The first opposite shaft 6 and second opposite shaft 7 are arranged in such a way as to be separated from each other so that their axes become parallel to the first main shaft 4 and the second main shaft 5. In addition, the output gear g2 of the opposite shaft 6 and the output gear g3 opposite shaft 7 is designed to transmit power to the gear g1 differential, located on the rear stage of an automatic transmission 1.

The first driven gear 11, the second driven gear 12, the third driven gear 13 and the sixth driven gear 14 is held rotatably on the ground opposite the shaft 6. The fourth driven gear 15, the fifth driven gear 16 and a reverse driven gear 17 is held with the possibility of rotations is of the opposite shaft 7. In addition, on the opposite shaft 7 has a Parking gear 18.

Next, the first driven gear 11, the third driven gear 13 and the fifth driven gear 16, which are the gears of the first group are connected with the first main shaft 4 so that rotation of the first main shaft 4 can be transmitted to gear United with him. The second driven gear 12, the fourth driven gear 15, the sixth driven gear 14 and the reverse gear 17 are gears of the second group and are connected with the second main shaft 5 so that rotation of the second main shaft 5 is transferred to the gear United with him.

In addition, as shown in figure 1, the transmission section 101 includes four forks 20-23 gear. The first plug 20 switch and the second plug 21 switch installed so as to slide along the axis opposite the first shaft 6, while the third plug 22 of the switch and the fourth plug switch 23 is set so as to slide along the axis of the second opposite shaft 7.

By moving the forks 20 to 23 of the switch to slide in the manner described above, the second driven gear 12 and the sixth driven gear 14 can be selectively connect or disconnect (to move toward the shaft or away from) from the opposite shaft 6 via the first is th fork 20 switch, while the first driven gear 11 and the third driven gear 13 can be selectively connect or disconnect (to move toward the shaft or away from) from the opposite shaft 7 via the second plug 21 of the switch. In addition, the fourth driven gear 15 and the reverse gear 17 can be selectively connect or disconnect (to move toward the shaft or away from) from the opposite shaft 7 through a third plug switch 22, while the fifth driven gear 16 can selectively connect or disconnect (to move toward the shaft or away from) from the opposite shaft 7 through the fourth fork 23 of the switch.

Thus, in the transmission section 101 automatic transmission with double clutch selective switching on any gear of the first group, formed by the first gear, third gear and fifth gear, must be carried out via the first clutch 2, while the selective switching on any gear of the second group, formed by the second gear, fourth gear, sixth gear and reverse gear must be carried out via the second clutch 3.

As shown in figure 2 and 3, a system for shift control of an automatic transmission arranged as described above, includes PE cluchey element 55, having the core part 50, advanced in the direction of the se choice, and an actuator provided in its parts, linkage parts (fingers) 51, which is designed in such a way as to deviate in the radial direction from the first position E1 and the second position E2 on the core part 50, many rods 30 of the switching mechanism, which are arranged, as shown in figure 2, 3, 4A and 4B, so that their axes were oriented in the direction of the sf switch, crossing the pivotal part 50 at a right angle and fork 20-23 switch are connected, respectively, with many of the rods 30 of the switching mechanism and adapted to move the driven gears 11, 12, 13, 14, 15, 16 and 17, located in the automatic transmission 1, and the change-over tabs 40 are connected, respectively, with the rods 30 of the switching mechanism, is designed to be placed against the lever parts 51, and each of them contains a separate protrusion 401 in the form of a wave (having the form of a rack detail), placed on it so that deviate from it.

In this system, the shift control of an automatic transmission 1 shift transmission to a predetermined gear is any plug 20-23 switch, which is connected with the switching protrusion 40 is selected lever parts on the first position E1 and the second is icii E2 switching element 55, which is driven by the actuator to move to select and switch gear.

As shown in figure 2 and 3, the plug 20-23 switch fixed respectively on the four rods 30 of the switching mechanism arranged to move in the direction of the sf switch. In addition, the rods 30 of the switching mechanism are switching the tabs 40. The protruding part (shaped rack item) 401 is performed on each of the change-over tabs 40 in such a way as to protrude out of the respective rod 30 of the switching mechanism is essentially perpendicular to the direction of the sf switch, as shown in figv.

Next, as shown figa and 4B, the protruding part 401 switching protrusion 40 has a pair of side face parts of f0 with the opposite orientation in the direction of the sf movement. When pressure is applied from one of the side surface parts of the lever part 51, forks 20-23 switch are driven to perform a gear change, while when the pressure applied to the other side surface parts, forks 20-23 switch are driven to perform the operation of turning off the transfer.

Set in motion by the Executive mechanism for joint sliding along the operating axis Lc (denoted by the s position on figa and 4B) in the se direction selection (figa and 4B perpendicular to the surface of a sheet of paper, showing the drawings), the lever portion 51 at the first position E1 and the second position E2 can move between the four rods 30 of the switching mechanism and, in addition, can be rotated in the direction of the sf switch while rotating around the operating axis Lc.

In addition, as shown in figa, the lever portion 51 can come into contact with one of the facing side surfaces (side walls) serving items 401, to which the lever portion 51 facing after rotation, i.e. to the selected serving part 401 for the application thereto of the pressure Ps in such a way as to shift the rod 30 of the switching mechanism for translation into one of the switch positions. On the other hand, as shown in figv, the lever portion 51 can come into contact with the other facing in opposite side surfaces (side walls) serving items 401, to which the lever portion 51 facing after turning, for the application thereto of the pressure Ps in such a way as to shift the rod 30 of the switching mechanism for transferring him to another position switch.

In addition, as shown in figure 2 and 3, the lever part 51 are placed on the rod portion 50 in the first position E1 and the second position E2 in such a way that in the direction of the switch was shared by a certain interval in the direction of the switch. Lever is the part 51 in the first position E1 is designed for switching the respective gears (first, the second, third and sixth gears), belong to a first side (figure 1 - bottom), and the lever portion 51 at the second position E2 is designed for switching the respective gears (fourth, fifth and reverse gears), belonging to the group with the second side (figure 1 - top side). This layout, as shown in figure 2, the lever portion 51 at the first position E1 is against the choice Se1, Se3 of the four positions of choice Se1-Se4, and the lever portion 51 at the second position E2 is against the choice Se2, Se4, which allows you to quickly perform the selection operation.

Thus, while the lever portion 51 in the first and second positions E1, E2 are separated from each other by a specified interval e, the lever parts 51 may not want to move at a given interval, that is, namely, as the lever portion 51 at the first position E1 is designed for switching the respective gears of the group from the first side, while the lever portion 51 at the second position E2 is designed for switching the respective gears of the group from the second side, each lever part 51 does not provide travel choices for the size of the interval e, the group of gears that must be switched to the other lever part 51, so that the travel distance, which should move to SEL the RA core part 50, may be relatively small, allowing for improved manageability, powered for selection.

Further, when moving in the direction of the choice of se with respect to four rods 30 of the gear shift lever part 51 can move without interfering with the respective protruding portions 401 of the change-over tabs 40. Namely, as shown in figa and 4B, the lever portion 50 is temporarily held in rotation at shutdown E1, in which it is possible to commit shutdown state, referred further up than each of the switching protrusion 40 (e.g., further up from the line indicated by position b) at a certain distance, hr, and then allowed her free movement toward se.

In addition, as shown in figure 2 and 3, the rod 50 gear is driven into rotation around the operating axis Lc in the direction of the switch engine switch 701 and the mechanism Gsf downshift, which is connected with the engine 701 and, in addition, moves along the operating axis of the Lc under the influence of engine 702 choice and mechanism Gsf downshift, which is connected with the motor 702. These engines switch 701 and 702 choice form the actuator, and the inclusion of these constituent elements of the actuator, or actuators, controlled by an electronic unit in the management (ECU) 62 on the basis of the action of the gear lever (not shown) and operating conditions of the engine 8. For example, these actuators are turned on and off sequentially shifting from the currently engaged gear on the specified gear.

The ECU 62 when the gear shifting controls the operation of the clutches 2, 3. In particular, switching transmission ECU 62 switches from a state in which one of the clutches 2 or 3 is engaged with a particular gear, in a state in which another coupling, 3 or 2, engages with the next gear while maintaining engagement of the existing gear with one of the clutch 2 or 3. Then the previous gear is separated in time, when the rotation speed of the next gear is synchronized with the rotational speed of the engine, so maybe switching transmission without interrupting the power flow.

Next, with reference to figa and 5B will be described variant, in which the upshift from the currently engaged first gear (located on the side of the first clutch 2) on the second gear (located on the side of the second clutch 3).

In this case, as shown in solid lines on figa, switch to a currently engaged first gear has been completed, and the actuator moves both the lever protrusion 51 on the first and the second is Aziziyah E1 and E2 from the line switch and turns them into position off (see the area is turning when you turn off E1 on figv). Then the actuator selects and rotates the lever portion 51 at the first position E1 to the line switching from sixth to second gear, and then rotates the same lever part 5 in such a way as to move with the shape of the rack protruding portion 401 of the switching protrusion 40, which is in the neutral position N, the second gear.

After that, when the synchronization rotation speed of the second gear is completed, the first clutch 2 is turned off, while the second clutch 3 is turned on, so can be made smooth gear changes with no interruption of power flow. In addition, in this embodiment implemented in connection with the use of a double clutch in anticipation of the next operation, the gear shift or the so-called Overdrive switch to third gear actuator moves the lever portion 51 in the first and second positions E1, E2 from the line switch and turns them into position off. After that, the actuator selects and rotates the lever portion 51 at the first position and then returns the lever portion 51 on line switching from the first to the third gear, and a lever portion 51 is rotated not only to return with the form of the rack protruding portion 401 of the rod mechanism 30 is ZMA switching from the first to the third gear, which lever part 51 is now against its neutral position N from the position of the first gear, but continues to move the same stem 30 of the switching mechanism to the third gear with the purpose of training to improve operations for the third gear.

In addition, when you want to return the first gear to the neutral position N, the two lever part 51 in the first and second positions E1, E2 are moved from the line switch and turn to the off position, after which the lever portion 51 at the first position E1 is selected and rotated in such a way as to return to the line switching from first to third gear. Then in this position the lever portion 51 is rotated to perform the operation returns (see figv), which has the shape of the rack protruding portion 401 of the stem 30 of the switching mechanism from the first to the third gear, which is now converted lever part 51 is returned to the neutral position from the position of the first gear.

Thus, with the switching protrusion 40 on line switching from first to third gear lever portion 51 at the first position E1 selects and moves to the line switching from the first to the third gear, and a lever portion 51 comes in contact with one f0 from both side surfaces having the shape of the rack protruding part 401 perekluchaus what about the ledge so to attach the pressure F, whereby the switching operation of the transmission in first gear is accomplished by operation of the rotating lever part 51. After that, the lever portion 51 at the first position E1 is chosen to move to the line switching from sixth to second gear, so to complete the raising switch to second gear. After that, the lever portion 51 at the first position E1 is chosen to return to the line switching from first to third gear, where the lever portion 51 applies pressure F to the other f0 of the side surfaces of the switching protrusion 40 to perform the operation of turning off the transfer. When this occurs, as shown in figv, "the move operation gear (the gear), and operation of the diversion gear (off transmission)can be achieved by having the shape of the rack protruding part 401 of one of the switching protrusion 40, and the amount by which acts as a switching protrusion 40 can be reduced to the lowest possible level. In addition, the degree of freedom of placement, and it is possible to achieve the effect of reducing costs.

Next, the lever portion 51 at the first position E1 is chosen to move from the neutral position are currently engaged gear to a neutral position from a given W the stubble, and then switch the transmission to a predetermined gear. In operation off the transmission, which will happen after this, the actuator moves both the lever portion 51 in the first and second positions E1, E2 with switching lines and returns them in the off position, after which the lever portion 51 at the first position E1 is chosen to rotate to complete the operation off when you switch the transmission, in which the previous gear (first gear) returns to its neutral position. Thus can be reduced the number of steps involved in the operation of turning off the transmission so as to perform a smooth operation off the transmission, thereby reducing the duration of the shift.

In addition, if the selected move to the line switching from sixth to second gear is obtained the advantage that, when the lever portion 51 at the first position E1 is rotated to move with the shape of the rack protruding portion 401 of the switching protrusion 40 on the second gear after her move to select on the second gear (see figa), or when the lever part 51 performs a multiplying operation on the third gear after the operation of turning off the transfer. Namely, as shown in figv, the angle α2 of the Central axis of rotation of the lever portion 51, which is in contact with shaped rack stand is her part 401, whose Central axis intersects the operating axis Lc (marked on figure 5 In position) of the rod portion 50 is relatively small. Therefore, the pressure Ps, which is applied lever part 51 to the surfaces f0-shaped rack protruding part 401, facing in the opposite direction in the direction of sf switch can be maintained relatively high.

Namely, as shown in figv, assuming that the force applied to facing in the opposite direction to the surfaces f0 protruding part 401 lever part 51, is the tangential force F, the distance from the contact point between the lever part 51 and having the form of a rack projecting part 401 to the Central axis of the driving shaft 100 is the distance L2, the slope of the line that connects the point of contact and with the Central axis in the direction of the switch, is the angle α, and a component P1 (marked on figa and 5B as Ps) tangential force F in the direction of switching is determined using expression (1)mentioned above. From the expression (1) it is clear that with decreasing angle α component P1 (marked on figa and 5B as Ps) is close in its meaning to the tangential force F, i.e. the component of P1 increases, and this ensures that the switching operation of the transmission is performed correctly, allowing you to reduce the duration of the operation p is clucene transmission.

In addition, when performing the operations acquisition gear (off transmission)as shown in phantom line with two points on FIGU, although the pressure from the other of the pair of arm parts 51 is dissipated in comparison with the effort of performing shift due to the increase of the inclination angle α2, the application of effort equal to that required when performing a move operation gear (gear)"is optional and, therefore, it is possible operation is smooth off the transmission.

Next, as shown in figure 1, when the invention is applied as the control gear in the automatic transmission 1, in which the rotational force is transmitted through the gear located on the front of them opposite the shafts 6, 7 of the automatic transmission through the first and second main shafts 4, 5 double clutch, because the process of shifting can be reduced to increase speed gear system gear control can improve the controllability of the gear combined with dual clutch.

Next, with reference to figa and 6B will be described variant, which is to improve the operation regarding currently the gears, which in this case is the fifth sister is her up to sixth gear.

In this case, the currently engaged gear is the fifth gear (see the solid lines in figa). The actuator moves both the lever part 51 of the first and second positions E1, E2 and turns them into position off. After that, the actuator selects and rotates the lever portion 51 at the first position E1 and moves the lever portion 51 on line switching from sixth to second gear, where the lever part 51 shifts the switching protrusion 40 on the sixth gear (target gear) on the side of sixth gear. At the beginning of the operation of the off transmission are currently in mesh with the fifth gear actuator moves both the lever portion 51 in the first and second positions E1, E2 and turns them into position off (see the off position E1 on figv). After that, the actuator rotates the lever portion 51 at the second position E2 on the line switch of the fifth gear on the previous side of the fifth gear (the previous being in engagement gear) and returns the same lever portion 51 in the direction of the switch thus to return prior to the fifth gear (previously engaged gear) in its neutral position, after which the operation of turning off the transfer is completed. In addition to t the th, after synchronization is complete, the speed of rotation of the sixth gear speed of the engine is switched off, the first clutch 2, while the second clutch 3 continues to operate, so that the gear change is performed without interrupting the power flow.

In this case, when the operation off both transmission lever part 51 in the first and second positions E1, E2 slip with line switch, and then the lever portion 51 at the second position E2 is turned in the direction of the off transmission thus, to return to the neutral position. Thus, the above operation should only be performed to complete the operation, turn off the transmission, and then, in comparison with typically the control system gear, the operation of turning off the transfer can be performed more smoothly while reducing the duration of the shift.

Moreover, as shown in figv, because the angle α2 to the axis of rotation (indicated by their line of alternating long and short dashes) lever part 51 which comes into contact with the Central axis of the shaped rack protruding portion 401 at the point (axis selection) is relatively small, component (marked on figa and 6B as Ps) tangential force F in the direction of the switch which is attached a lever part 51 to the side p is the surfaces f0 serving items 401, facing in the opposite direction to the sf switch can be relatively large, providing the operation switch and the reduction in the duration of the shift.

Automatic transmission 1 described above is an automatic dual clutch transmission, which includes two clutches 2, 3 and two of the main shaft 4, 5 and arranged in such a way that allows you to selectively change the rotational force with respect to the speed that you want to pass on opposite opposite shafts 6, 7 of the automatic transmission through the driven gear 11-17 through the first and second main shafts 4, 5. Because the invention is used as a system for shift control of an automatic transmission 1 configured as described above, the feature reduction process of switching gears to increase speed gear may be combined with dual clutch, in order to improve the control gear.

Furthermore, in addition to the automatic transmission 1 with double clutch the invention can be also applied to a conventional automatic transmission with a single clutch, and in this case can be also provided some of the features and advantages of arecoline for the present embodiments.

Unlike existing solutions, in which the lever element is moved for entry into the slots on switching tabs, which include a pair of left and right sides of the grip operation switch according to the aspect of the invention degrees of freedom increase with the Assembly of the lever element, which can rotate around the axis of selection in order to achieve the shutdown state to be selected to move in the direction of the axis of selection, and switching tabs, which are made with the shape of the front part, and the shape of the switching protrusion is simplified with the advantage that it reduces production costs. In addition, by the election of bringing the lever element, which is rotated around the axis of selection into contact with a shaped stand part of the switching protrusion on its both sides, thus, to attach the pressure, "operation gear (toothed gear)" and "operation off the transmission (clutch gear)can be done in one switching protrusion in the form of a rack, so that the number of protruding parts made on a switching protrusion decreases as possible in order to simplify the form of the change-over ledge.

According to the aspect of the invention, because the parties have a form with the ISP details of the switching element of the ledge, with which the lever element comes in contact, is made with giving them a flat shape, the pressure that develops lever element can be perceived surfaces guaranteed way, thus making possible the implementation of "operation gear (toothed gear)" and "operation off the transmission (clutch gear)".

According to the aspect of the invention by placing the axis of rotation of the finger (lever side) on the Central axis in the direction which is shaped rack portion of the element switching protrusion, when the operation switch transmission (gearing gear) the angle at which the finger comes in contact with the stand form part of the switching element of the ledge, becomes extremely small, i.e. the contact angle between the finger and the side surface having the form of a front portion of the switching element of the protrusion becomes closer to 90 degrees, so that the pressure applied by the finger is transmitted in the form of efforts run gear with high efficiency. On the other hand, when the operation of turning off the transmission (clutch gear), although the pressure of the finger is dissipated, it is not a problem because the force that is as great as the effort that is required when performing the operation of switching the mode gear (toothed gear), is not required if the operation of turning off the transfer (uncoupling gear).

According to the aspect of the invention the invention may be applied to the shift control for an automatic transmission, in which there is a selective change speed rotational power to the transmission through the gears on the opposite shafts of the transmission, which are placed against each other through the first and second main shafts of the dual clutch, and when this happens, in particular, because the process of shifting can be reduced to increase the speed change gear system gear control can improve the controllability of the shift in interaction with double clutch.

According to the aspect of the invention, when the lever element is in the first position, is made to switch the respective gears of the first group, and a hook element at the second position, is made to switch the respective gears of the second group corresponding to the lever part can be designed in such a way as not to pass the specified interval between the first and second groups so that the amount of movement of the rod portion in the direction of the choice can be made relatively small, thus providing the possibility of improving the management is of emoti system, selected for the operation.

According to the description of the invention it is possible to see that the same may be varied in many ways. Such changes should not be considered as deviations from the essence and scope of the invention, and all such modifications as should be obvious to a person skilled in the field of technology should be included in the scope of the attached claims.

1. System for shift control in an automatic transmission, containing the switching element includes a rod portion, which is positioned in such a way that its axis selection is oriented in the direction of selection, and includes a lever part, which is executed on the core part in such a manner that it protrudes from it by radius, forklift parts switch, which switches the gears within the gear train, variable speed, many elements of the rods of the switching mechanisms connected with forklift parts switching and placed in such a way that the axis of the shift rod parts rod is oriented in the direction of the switch, and the switching elements of protrusions protruding from the rod elements of the switching mechanism and faces the lever part, with the lever portion of the switching element is moved to select and change gear attached to the selected element of the change-over ledge so the gear change on a given transmission is handled fork part of the switch, which is connected with the switching element of the ledge on which you click, characterized in that each of the switching elements of the protrusions includes a protrusion in the form of teeth, the lever part is made in the form element, rotating around the axis of selection into the position in which the lever portion facing to the selected element switching tabs, and a lever portion moves in the direction of the axis of selection to select the switching ledge followed by a rotation around the axis of selection to the application of pressure in the direction of the switch with one hand separate tabs in the shape of the teeth of the selected item switching protrusion in such a manner as to cause the side forklift part of the switching element of the rod of the switching mechanism associated with the switching element of the ledge, the operation switch, and for the application of pressure in the direction of the switch with the other hand individual protrusion in the form of a tooth in such a manner as to cause the side forklift part of the switching element of the rod of the switching mechanism associated with the switching element of the ledge, the operation off, and a separate tab in the form of a prong element switching high the UPA made so the Central axis in the same direction as the protrusion in the shape of a tooth of a switching element of the projection intersects the axis of selection, which is the axis of rotation of the lever portion when the fork portion of the shift rod element of the switching mechanism is in the neutral position.

2. The system according to claim 1, characterized in that a separate tab in the form of a prong element switching protrusion has a pair of side surface sections that are oriented in opposite directions in the direction of the switch, under the application of pressure by means of a pair of lever parts from one of the side surface areas of the individual protrusion in the form of a prong element switching tabs, forklift part of the switching element of the rod of the switching mechanism, which is connected with the switching element of the ledge, performs the operation switch, and during the application of pressure from the side of the other surface area, forklift part of the switch performs an operation of turning off the transfer.

3. The system according to claim 1 or 2, characterized in that a separate tab in the form of a prong element switching protrusion protrudes from an element of the rod of the switching mechanism, essentially perpendicular to the direction of switching.

4. The system according to claim 1, characterized in that the automatic transmission contains many gears, which are divided into first and second groups, and the first and second main shafts, which are connected with the first and second groups, respectively, and both main shaft connected with the shaft for transmitting the driving force of the engine through a dual clutch.

5. The system according to claim 4, characterized in that the lever part is in the first position and the second position on the rod part, and the first position and the second position are separated from each other by a specified amount in a specified direction.



 

Same patents:

FIELD: transport.

SUBSTANCE: proposed system comprises gearshift element including rod and lever parts, multiple gearshift mechanism rods, gearshift fork parts and gearshift ledge elements. Gearshift ledges elements comprise ledges. Lever part comprises a pair of lever parts. Pair of lever elements moves to select selection axle to apply force in gearshift direction on one side of selected element ledge and to apply force in gearshift direction on the ledge other side of the other pair of lever parts.

EFFECT: reduced gearshift time interval.

7 cl, 13 dwg

FIELD: transport.

SUBSTANCE: automotive gearbox comprises housing (5) with section supporting coupling flange (7) rigidly jointed to said housing (5), said flange being provided with spaces to accommodate drive or control elements. Proposed gearbox comprises also one drive cylinder (3) formed by first part accommodated in coupling flange (7) and second part arranged in gearbox housing (5). There is elongated thrust ring (10) with sleeve-like extension (10', 10") that forms sealing operating surfaces of piston (2) in gearbox housing (5) and/or in coupling flange (7).

EFFECT: ease of production.

3 cl, 2 dwg

FIELD: machine building.

SUBSTANCE: invention refers to facility for control over multitude of hydraulic switching cylinders for switching gears of gear box and to hydraulic supplying system for gear box with double clutch. The facility for control over multitude of hydraulic switching cylinders consists of first valve (64) with control input (96), input (94) of pressure of the system, two outputs (100, 102) and one output (98) of drain. Depending on pressure on the control input one output is selectively connected to the system pressure input, while another output is connected to the drain output. The valve device connected to outputs of the valve is made in form of slides (66, 68, 116) and valve (104) by means of which switching cylinders are selectively actuated. The hydraulic supplying system consists of the device for control over multitude of hydraulic switching cylinders and a pressurised with pump (30) main connected to valve (40) of pressure regulation. Valve (40) has a connection for coupling with the main tied with control devices (58, 60, 62) of preliminary controlling pressure and one drain connection tied with drain main (46) by means of cooling line (42) running through radiator (44); also the facility has a bypass main (48) connecting the cooling main with the drain main and valve of limited pressure (50) installed in the bypass main.

EFFECT: facilitating simplification of design.

12 cl, 9 dwg

FIELD: transport.

SUBSTANCE: automobile transmission has drive gear fixed on input shaft, driven gear engaged with drive gear and installed on output shaft, hub rotating together with output shaft, sleeve, parking gear made as an integral part of the sleeve, a catch and element restricting the sleeve. Sleeve rotates as an integral part of the hub and is intended to connect driven gear to output shaft. Catch is located near external periphery of parking gear with possibility of being connected to and disconnected from parking gear. The element restricting the sleeve and equipped with a catch is intended to restrict sleeve movement in axial direction when the catch moves in the direction of interaction with parking gear.

EFFECT: improving compactness and reliability of the device.

6 cl, 6 dwg

FIELD: machine building.

SUBSTANCE: disclosed invention refers to shifting device for gear box. Device (1) of shifting transmission for a step-by-step gear box consists of shifting shaft (2) with shifting fork (3) or rockers entering sliding clutches. Axial travel of shifting shaft (2) causes shifting of transmission. Motions of transmission selection and shifting are kinematically untied; also shifting shaft (2) does not rotate during motion of transmission selection.

EFFECT: facilitating compactness and simplification of design.

12 cl, 3 dwg

Transmission // 2376517

FIELD: machine building.

SUBSTANCE: invention relates to mechanical transmission. Transmission contains multitude of switching devices, switching lever, allowing couple of plug parts and switching plug, connected to switching lever through switching rod. One of switching devices pushes one of plug parts in the direction of switching, for implementation of switching operation of transmission by switching plug by means of switching rod. Switching devices are located so, that they are inclined from each other in the direction of drives selection.

EFFECT: design simplifaction.

4 cl, 10 dwg

Transmission // 2374533

FIELD: transport.

SUBSTANCE: transmission assembly comprises gear shift element, multiple gear shift levers, each having a pair of fork parts and multiple gear shift forks linked up with shifter shafts. Gear shift lever selected from multiple levers accommodates second fork part. In gear shifting position, second fork part shifts gear shift element, on the side of adjacent gear shift lever, towards selection gear shifting to rest upon gear shift element to move gear shift fork from gear shifting position into neutral one.

EFFECT: reduced gear shifting time.

6 cl, 8 dwg

Transmission // 2374532

FIELD: transport.

SUBSTANCE: transmission comprises gear shift element (51) displacing towards gear shift and gear shift selection directions, gear shift lever (40) having a pair of fork parts (41) spaced apart in gear shift direction and gear shift fork (20-23) linked with gear shift lever via gear shifter (30). Aforesaid element (51) is moved to displace one of aforesaid fork parts to wards gear shifting to selectively move gear shift lever to make gear shifting with the help of gear shift fork and gear shifter rod. Aforesaid pair of fork parts (41) is arranged spaced apart towards gear shifting direction.

EFFECT: fast and efficient gear shifting.

4 cl, 7 dwg

FIELD: transport.

SUBSTANCE: vehicle transmission comprises multiple drive gears, input shaft, output shaft fitted in parallel with input shaft, driven gear and synch mechanism. Parking gear is made integral with synch mechanism bush. Packing gear and bearing on shaft extension overlap each other radially.

EFFECT: compact and simple design.

4 cl, 3 dwg

FIELD: transport.

SUBSTANCE: invention relates to automotive transmissions. Proposed transmission comprises parking gear lock (14) with locking part (26) to get in mesh with parking gear (12), parking rod (16) with thick part (15) to initiate parking gear lock (14), and bracket with rod rest element (34) to hold packing rod (16). Gear wheel lock (14) also has rest element. When thick part (15) goes out of contact with the ledge, rest element gets suspended on thick part (15) and locking gear lock (14) is held in position whereat locking part (26) is out of mesh with parking gear (12).

EFFECT: ruling out improper operation.

10 cl, 6 dwg

FIELD: transport.

SUBSTANCE: proposed system comprises gearshift element including rod and lever parts, multiple gearshift mechanism rods, gearshift fork parts and gearshift ledge elements. Gearshift ledges elements comprise ledges. Lever part comprises a pair of lever parts. Pair of lever elements moves to select selection axle to apply force in gearshift direction on one side of selected element ledge and to apply force in gearshift direction on the ledge other side of the other pair of lever parts.

EFFECT: reduced gearshift time interval.

7 cl, 13 dwg

FIELD: construction.

SUBSTANCE: vehicle comprises motor (1), output shaft of which is engaged with fully automatic or semi-automatic transmission (9). Vehicle additionally includes system (55) of suspension with sensors (58) for measurement of vertical motion of car wheels relative to car body (57), and at least one control unit (45) designed for acceptance of various input signals and processing of these signals in compliance with programmed logical rules in order to transfer output command signals of torque request to motor, and commands of gear shift to transmission and clutch. Control unit (45) is programmed to change strategy of transmission gears shifting to strategy of gears shifting optimised for the first road conditions, if current strategy of gears shifting is the second strategy of gears shifting for the second road conditions.

EFFECT: simplified control of vehicle equipped with automatic mechanical transmission, for instance in process of driving on road, then off-the-road and again back on road.

8 cl, 1 dwg

FIELD: transport.

SUBSTANCE: invention relates to bicycle gear shift appliances operated at changes in angular velocity and using auxiliary force supplied by revolving wheel hub to make rear gear shift device operate. Hydraulic rear gear shift switch (2) and fixed axle (3) of rear wheel hub (4) with set (5) of various sprockets are fitted on frame (1). Spring-loaded control link (6) is arranged inside hub (4) to be driven thereby and interact with appliances (7, 8) that displace said control link (6) depending upon bicycle speed variation. Control link (6) interacts with hydraulic appliance that controls rear gear shift device (2). Said hydraulic appliance comprises piston (9) with rod and pipeline (10) incorporated with fixed axle (3) representing a hydraulic cylinder. Appliances (7, 8) that displace said control link (6) impart axial motion to piston (9) controlling pressure in pipeline (10) that extends from said fixed axle (3) and coupled with rear gear shift device (2).

EFFECT: higher reliability.

2 dwg

FIELD: transport.

SUBSTANCE: spring-loaded control link (9) is revolved by front wheel hub (8) and linked with control link displacement drive to respond to bicycle speed increase or decrease. Control link displacement drive (9) comprises a set of bundles (15), Newton fluid (16) and journal of fixed shaft (7). Bundles (15) are regularly arranged around the ring of control link (9), one end of every bundle being fitted in said control link while another end can stays in permanent contact with aforesaid journal of fixed shaft (7) via Newton fluid (16). Balanced state of link (9) between faces of half-couplings (10, 11) is provided by spring and viscous friction between bundles (15) of revolving link (9) and journal of fixed shaft (7). Increasing speed causes an increase in viscous friction, makes ends of bundles (15) sitting on main part of journal sector and link (9) engaging with threaded half-coupling (11) that moves on threaded part of fixed shaft (7). Further displacement of threaded half-coupling (11) on shaft (7) controls via cord (6) the rear gear shift lever to shift drive chain from larger sprocket to smaller one. Decrease in speed causes the decrease in viscous friction and makes link (9) coupled with reversing half-coupling (10) which drives, via balls (13), threaded half-coupling (11) in opposite direction. Further displacement of threaded half-coupling (11) on shaft (7) controls via cord (6) the rear gear shift lever to shift drive chain from smaller sprocket to larger one.

EFFECT: simplified design, smaller sizes and weight.

2 dwg

Building vehicle // 2390679

FIELD: transport engineering.

SUBSTANCE: vehicle consists of motor, of hydraulic pump, of running hydro-motor, of running wheel, of adjustment block, of vehicle speed measurement block. The adjustment block is designed to operate under mode of reduced slipping in the range of low speed, when speed of the vehicle is less or equal to specified speed. This is designed to reduce maximal speed of motor rotation, when speed of the vehicle decreases.

EFFECT: reduced hazard of slipping.

6 cl, 9 dwg

FIELD: machine building.

SUBSTANCE: disclosed invention refers to shifting device for gear box. Device (1) of shifting transmission for a step-by-step gear box consists of shifting shaft (2) with shifting fork (3) or rockers entering sliding clutches. Axial travel of shifting shaft (2) causes shifting of transmission. Motions of transmission selection and shifting are kinematically untied; also shifting shaft (2) does not rotate during motion of transmission selection.

EFFECT: facilitating compactness and simplification of design.

12 cl, 3 dwg

Transmission // 2374532

FIELD: transport.

SUBSTANCE: transmission comprises gear shift element (51) displacing towards gear shift and gear shift selection directions, gear shift lever (40) having a pair of fork parts (41) spaced apart in gear shift direction and gear shift fork (20-23) linked with gear shift lever via gear shifter (30). Aforesaid element (51) is moved to displace one of aforesaid fork parts to wards gear shifting to selectively move gear shift lever to make gear shifting with the help of gear shift fork and gear shifter rod. Aforesaid pair of fork parts (41) is arranged spaced apart towards gear shifting direction.

EFFECT: fast and efficient gear shifting.

4 cl, 7 dwg

FIELD: machine building.

SUBSTANCE: control (15) unit of vehicular transmission is installed on casing (30) of transmission gear (9) and contains rope (16) of transmission selection and rope (17) initiate shift, transmitting commands from lever (1) of speed control to device (15). Unit (15) contains rod (11') of transmission selection, brake crank (23), connected to rope (16) and implemented with ability of transformation of rope movement (16) transmission selection into translational motion of rod (11') of transmission selection, which implements transmission selection by means of lever (12'). Unit (15) contains lever (27) of engaging, translating movement of rope (17) of initiate shift into rotary motion of rod (11') of transmission selection, which engages selected transmission by rotation of the same lever (12'). Transfiguration method of control means of transmission assembly by means of rod into unit (15) transmission control by means of ropes is implemented by following method: it is extracted installed beforehand device, it is fixed on its place device (15) by means of the same fasteners, which were used for fixation of installed beforehand device, and then there are regulated ropes (16) and (17).

EFFECT: there is achieved changing of transmission system by means of rods by transmission system by means of ropes excluding introduction of changes into transmission assembly.

4 cl, 3 dwg

FIELD: transport.

SUBSTANCE: hydraulic drive is intended for control over various device of materials-handling vehicles. Proposed drive consists of control unit, reversing adjustable pump with drive motor, power hydraulic lines, first constant capacity hydro motor 6 and reducer. Second adjustable hydro motor has its hydraulic chambers communicating with power hydraulic lines and its shaft linked up with reducer parallel to the shaft of aforesaid first hydro motor. Power hydraulic lines accommodate pressure pickups connected, via pressure limiter unit, with adjustably hydro motor. Aforesaid unit comprises comparing amplifier of pickup differential pressure signals and those of preset pressure difference and allows regulating operating volume of hydro motor, if pressure difference signal exceeds preset magnitude.

EFFECT: expanded performances.

2 cl, 1 dwg

FIELD: machine building.

SUBSTANCE: hydrostatic transmission can be used in various drives. Proposed transmission comprises one hydrostatic transformer incorporating oval-gear pump and piston-type hydraulic motor with its power output exceeding power consumed by gear pump. Proposed transmission is furnished with hydromechanical variator comprising hydraulic cylinder with its piston linked up with drive engine via adjustable kinematic linkage.

EFFECT: smooth control over gear ratio.

2 cl, 2 dwg

Hydraulic vehicle // 2246061

FIELD: transport mechanical engineering.

SUBSTANCE: hydraulic vehicle comprises at lest one hydraulic pump (10) which is actuated by engine, one hydraulic motor for actuating wheel (31), hydraulic circuit (50) for connecting hydraulic pump (10) with hydraulic motor (30), and valve (60) for control of flow. The input shaft of hydraulic pump (10) is directly connected with the crankshaft of the engine. Valve (60) returns oil, which is supplied from hydraulic pump (10) to valve (60), to hydraulic pump (10) in the first position. In the second position, valve (60) supplies oil, which is supplied from hydraulic pump (10) to the valve, to hydraulic motor (30). In the third position, valve (60) supplies oil, which is supplied from hydraulic motor (10) to the valve, to the drain branch pipe of hydraulic motor (3).

EFFECT: simplified design and reduced weight.

1 cl, 5 dwg

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