Device for reducing engine speed at idle
(57) Abstract:The invention relates to engine, in particular to a device for the automatic translation engine to idle. Device for reducing engine speed at idle contains the current sensor, the input of which is connected with the load, and the output is connected through a threshold element and the amplifier with the throttle of the engine. The device further comprises a temperature sensor, the input of which is connected with an actuating device, and the second threshold element. The current sensor provides a selectable item. All threshold elements in the form of logic elements AND, the outputs of which are connected in parallel. The input of the first logic element AND IS NOT associated with the current sensor, the input of the second logical element AND-NOT - with temperature sensor. The technical result consists in increasing the reliability, saving energy and extending the functionality of working simultaneously on two channels. 1 Il. The invention relates to a device for the automatic translation engine to idle and can be used in welding machines.A device for otkatchiki zero speed), connected to the inputs of the system OR IS NOT connected via a threshold element, time relay and actuator valve of the engine.However, when idling, the device does not reduce the engine speed and disables it. It does not ensure the constant readiness of the engine to work, which is especially important in the winter time. In addition, the sensors zero speed have rotating elements or movable electrical contacts, which reduces Nezhnost device.It is also known actuating device AP-01 OJSC ISKRA" (Passport YEATS. 561712. 001 SS "welding Unit DAS-2502-1 U1" S. 12, 14-16, 19) designed to automatically reduce engine speed to idle, adopted as a prototype, containing a current sensor with analog element, the input of which is connected with the load, and the output - through limiting device, the first amplifier, the threshold element (trigger), the second amplifier and the actuator (solenoid) - with the throttle of the engine.The disadvantage is the presence of a current sensor analog element having mechanical components (coil, insulation, etc., when heated rapidly destroyed), which reduces the reliable engine when switching to the idle mode, that does not provide the maximum reduction of the engine speed at idle, and only partial to 1200 rpm It increases energy consumption. The absence of the device as threshold elements logical elements AND IS NOT not possible to de-energize (turn off) the solenoid idling of the engine. As is known, the operating time of the engine idling significantly more time under load, which leads to a large consumption of electric power.In addition, the absence of a temperature sensor, the second threshold element and the parallel connection of the outputs of the two logic elements AND NOT between them does not allow you to affect the execution unit via two channels simultaneously, but only one that reduces the functionality of the device. Finally, the disadvantage is the large number of radio, which reduces the reliability of the device.The objective of the invention is to improve the reliability, economy of electric power and enhanced functionality due to work simultaneously on two channels.The proposed device for reducing engine speed at idle contains data device, connected with the throttle of the engine.Unlike the prototype, it further comprises a temperature sensor, the input of which is connected with an actuating device, and the second threshold element, and the current sensor provides a selectable item, all of the threshold elements in the form of logic elements AND, the outputs of which are connected in parallel, the input of the first logic element AND IS NOT associated with the current sensor, the input of the second logic element AND IS NOT associated with the temperature sensor.The presence of a current sensor discrete element allows full (maximum) close the throttle of the engine when switching to idle mode. The logic state of the discrete element is changed from low (logical zero) to high (logical units) depending on the load. This allows you to open the throttle of the engine, providing the maximum reduction of the engine speed at idle to 800 rpm (1.5 times lower than in the prototype), which saves electrical energy. In addition, discrete element consists of chips (no mechanical components, as in an analog sensor prototype), which increases the reliability of the device. The nalitch is a separate estimate, AND IS NOT, and the parallel connection of the outputs of all logic elements AND NOT between them allows you to operate the device through two channels simultaneously: current and heat for one load, that extends the functionality. In addition, the presence of logical elements AND IS NOT possible to disable the electromagnet idling of the engine, as when there is no load on their outputs the logic state is changed from the high logic unit and to a minimum - a logical zero. This saves the consumption of electrical energy. Finally, the presence of logical elements AND does NOT allow to reduce the number of radio, which further enhances the reliability of the device.As a result, all the hallmarks are significant and solve the assigned task.The device shown in the drawing.The inventive device includes a current sensor 1 with discrete element (based on the magnetic chip DD KK), mounted on the welding cable (not shown), and associated input load 2 (arc welding), and the output from the first logical element AND-NOT 3, connected via the amplifier 4 and the actuator 5 (includes solenoid) with the throttle of the engine 6, the second logical element AND-NOT 7 associated with the input with the output of the temperature sensor 8 (thermistor KMT-1). The temperature sensor 8 is mounted on the motor housing 6 and the input e of the horn elements and their outputs are connected in parallel.The device operates as follows.In the absence of load - welding (arc welding) - powered thermal channel: on the conclusions of the Executive device 5 serves voltage of 12 V and operates the temperature sensor 8 (with cold engine 6), which is a logical element AND-NOT 7 (with power logical unit of output) and the amplifier 4 acts on the electromagnet actuators 5, the maximum opening of the throttle valve of the engine 6. The engine 6 is gaining momentum from zero to nominal mode 1800 rpm as heat in the motor housing 6 and a temperature sensor 8 at the inputs of the logical element AND-NOT 7 the voltage of the logic unit is reduced and when the pre-set resistor (not shown) temperature rating 90oC becomes equal to 2.9, which corresponds to a logical zero. The output of the logical element AND-NOT 7 also appears logical zero, that through the amplifier 4 operates (turns off) the solenoid actuator 5, fully (maximum) closing the throttle of the engine 6 (flap returns to its original position). Thus, the motor 6 is automatically moved in idle mode, clochette current channel. At the moment of ignition of the welding arc welding cable (not shown) flows a current which creates a magnetic field that interacts with a discrete element of the current sensor 1, thereby providing load the emergence of logical units at its output and at the output of the logical element AND-NOT 3, acting through the amplifier 4 to the electromagnet actuators 5, which is the maximum (fully opens the throttle of the engine 6, and he goes into work mode with a nominal speed of 1800 Rev/min When the process breaks (1-3 min) current welding cable (not shown) is missing. The logic state at the output of the current sensor 1 is changed from logical one to logical zero and then a similar effect on the logical element AND-NOT 3, the output of which will be a logical zero. Then through the amplifier 4, the impact is transmitted to the electromagnet actuators 5, the maximum closing the throttle of the engine 6, and he goes and idling, reducing the speed to 800 rpm Device for reducing engine speed at idle, containing the current sensor, the input of which is connected with the load, and exit through progammatic temperature, the inlet of which is connected with the actuating device and the second threshold element, and the current sensor provides a selectable item, all of the threshold elements in the form of logic elements AND, the outputs of which are connected in parallel, the input of the first logic element AND IS NOT associated with the current sensor, the input of the second logical element AND-NOT - with temperature sensor.
FIELD: mechanical engineering; engines.
SUBSTANCE: invention relates to devices for disconnection of engines in case of emergency situations and to compression brakes of engine trucks. Device for emergency shutting down of internal combustion engine and deceleration of vehicle by engine contains member for closing section of intake pipe line, closing member position setter and compressed air source. Closing member position setter is made in form of crankshaft speed limit pickup, oil pressure drop pickup, cooling liquid temperature rise pickup, and engine retarder control pushbutton. Intake pipeline section closing member is made in form of spool series-connected by pneumatic cylinder, in upper part of which calibrated hole communicating with atmosphere is made with fuel-feed valve connected with fuel-feed main line and with each of above-indicated pickups through check valve, and signal lamp and with engineering retarder control pushbutton and is connected in series with compressed air source. Pickups and engine retarder control pushbutton are connected in parallel.
EFFECT: improved reliability and efficiency of engine in operation, enlarged functional capabilities.
FIELD: engines and pumps.
SUBSTANCE: invention relates to ICE application in various machines incorporating an electromechanical transmission. The proposed method of stabilising the ICE minimum specific fuel rate by automatically adjusting the ICE operating conditions via a feedback circuit connected to the electromechanical transmission components consists in presetting the engine shaft rpm corresponding to the minimum specific fuel consumption, measuring the said shaft rpm variation at varying outer moment of resistance, comparing the resulted value with the preset one, amplifying the difference signal and feeding it to the AC generator excitation current control circuit input to make the aforesaid moment to comply with that developed by ICE. Note that at the same time, the electric power accumulator output voltage is measured and compared with two preset levels. Given any departure from the aforesaid preset levels, a signal is generated to cut off the ICE in case the voltage exceeds the preset level, or to cut in the ICE in case the measured voltage is lower than the preset one that allows operating the ICE in intermittent service.
EFFECT: stabilisation of minimum specific fuel rate and optimisation of ICE operating conditions at varying electromechanical transmission engine loads, simpler ICE design.
2 cl, 2 dwg
FIELD: engines and pumps.
SUBSTANCE: invention relates to automotive industry. Proposed method of diesel (1) control consists in generating automatic oscillation of fuel feed device (7). On a sensor (6) signal at load decrease to magnitude smaller than 30% of rated value the fuel feed device position pickup (7) is used to feed signal from speed automatic controller (10) of control unit (13) and frequency generator via current sinusoidal oscillations of amplitude and frequency oscillator (12). Said oscillator (12) is timed by crankshaft turn angle transducer (5) with its angular position. Invention covers also the diesel control at low feed and minimum stable rpm.
EFFECT: lower minimum stable rpm at load and idling.
2 cl, 4 dwg
FIELD: engines and pumps.
SUBSTANCE: claimed system comprises the device (100) to decreased the carbon emissions and carbon credit control server. The device (100) consists of the fuel data control module (110), idling limitation module (120), carbon dioxide emission limitation calculation module (130) and carbon credits conversion module (140). Note here that module (110) can define the fed fuel grade and volume and generate the data on measured volume of fed fuel. Besides, said module (110) can define the volume of consumed fuel, generate, store and control the data on fuel volume measurement. Module (120) can minimize the fuel feed into the engine for fuel consumption limitation at idling without fuel control pedal depression for a preset time interval. Besides, it normalizes the fuel feed at depression of said pedal. Module (130) can generate the data on reduction of the carbon dioxide emission. Module (140) can read off the data on reduction of carbon emission, index the history of economy value conversion and convert the carbon emissions to obtain the carbon credit. Carbon credit control serves can get the ID data on the user, the vehicle ID data, the data on carbon credit authenticity confirmation and the data on carbon emission reduction from appropriate device connected via data communication network. Besides, said server can generate and transfer the data to the carbon elision reduction device. This invention discloses the emitted carbon dioxide volume reduction in the vehicle and conversion of emissions into carbon credit.
EFFECT: decreased ejection of greenhouse gases of vehicles.
11 cl, 8 dwg
FIELD: engines and pumps.
SUBSTANCE: invention can be used in fuel feed systems of internal combustion engines (ICE), preferably of railway vehicles. Proposed device (1) for protection of plants has consumer (3), fuel tank (2), which is connected to consumer (3) by fuel pipeline (6), and installed in fuel pipeline (6) pneumatically actuated emergency shut-off valve (7), which in the locked position locks, while in the opened position opens fuel pipeline (6), herewith emergency shut-off valve (7) without actuation remains in its locked position or is automatically switched over into it. Shut-off valve (7) also has the possibility of actuation by electric or electromagnetic method, for this purpose it is connected to accumulator (17) of energy via electric circuit (18).
EFFECT: higher safety of the fuel feed system.
9 cl, 1 dwg
SUBSTANCE: invention relates to vehicles with start-stop system. Vehicle comprises engine and controller, which detects engine automatic shutdown locking condition, when estimate value of current, which will be required by vehicle electric loads, including climate control system, during engine automatic shutdown, exceeds threshold value of current. In response to detection of engine automatic shutdown condition controller prevents engine automatic shutdown.
EFFECT: increased driving comfort.
4 cl, 4 dwg
FIELD: engines and pumps.
SUBSTANCE: start locking circuit is designed for an operating tool with an internal combustion engine (20). The internal combustion engine (20) contains a cylinder (21) with a combustion chamber (25) and a control unit (60) to provide the engine operation. When the engine is running the combustion chamber (25) is supplied with combustion air and fuel, wherein the air-fuel mixture in the combustion chamber (25) is ignited with an ignition plug (26). A mode selection switch is designed for actuating the internal combustion engine (20) and has an operating position and a starting position for air-fuel enrichment. The braking unit (19) for locking is coupled with the tool operating body. When in the operating mode, the braking unit (19) for locking locks the operating body with a brake, and when in a standby condition, it unlocks the operating body without actuating the braking system. An operation transmitter is connected with the braking unit (19) for locking to detect the operating mode of the locking braking unit. There is a position sensor in the mode selection switch. The status signal for the operation transmitter (19) of the locking braking unit and the status signal for the position sensor of the mode selection switch are interconnected in such a way that the control unit (60) stops the engine operation in all cases when the mode selection switch is in the starting position, and the locking braking unit (19) is in its standby condition with the braking system off.
EFFECT: avoidance of the engine start with rich mixture without switching the locking braking unit on, as the locking braking unit locks and brakes the tool operating body.
12 cl, 5 dwg
FIELD: engines and pumps.
SUBSTANCE: methods for automatic stop and start of the engine are presented. In one embodiment, the method provides supply of water-containing fluid to closed intake valve of the cylinder when the engine is automatically switched off and idling, and at the subsequent start the supply of fuel into the cylinder after the execution of at least one suction stroke and the next exhaust stroke in the cylinder is performed.
EFFECT: emissions control at automatic engine re-start.
18 cl, 5 dwg