Emergency brake of the vehicle
(57) Abstract:Usage: mainly in vehicles operating at high probability of emergency situations. The inventive drive emergency brake made in the form of powder gas generator, and the braking device in the form of a pointed rod, able to penetrate under the pressure of the powder gases in the road surface. The gas generator comprises a sealed sliding telescopic housing 1 holds the powder charge 2 and the electric igniter 3, associated with the ignition system of the vehicle. The braking device is designed as a link telescopic sliding of the housing 1 and is additionally connected with the vehicle rods 6, fixed on its body with the center of mass of the vehicle. 4 Il. The invention relates to the automotive industry, the primary application area of high-speed vehicles operated with a high probability of accidents.Known for more brakes of vehicles used to enhance the functionality and also in those cases when the regular brakes fail or do not provide the required the d in the form of the power cylinder with the rod, put forward by the pressure of compressed air or fluid, and an actuator in the form of Shoe, pressed against the wheel and the road surface.Closest to the proposed technical solution is the emergency brake of a vehicle, comprising a hydraulic cylinder with a rod located so that they can move in a guide fixed to the underside of the vehicle, and the brake Shoe presses in the braking process to the surface of the road.The disadvantage of all these decisions are the low speed drive of the brake device and the limited magnitude of the braking force, which leads to a large roadside path. In addition, the effectiveness of these additional brake (like regular brakes of cars) depends on the surface condition of the road surface, which may result in skidding or overturning of the vehicle during braking.The objective of the proposed solutions is to reduce the magnitude of the stopping path of the vehicle in case of an emergency. The technical result of the ability to prevent an emergency situation.This is achieved by the fact that in an emergency brake, the content is of mobile and made in the form of gas generator, containing a sealed sliding telescopic housing holds the powder charge and the electric igniter associated with the ignition system, the lower part of the casing brake is a device designed in the form of predicates and associated with the vehicle power rods, mounted on the car body at its center of mass. At this point of attachment of the power rods lie in the same horizontal plane with the center of mass of the car.Comparative analysis of the proposed solution and the prototype shows that the described emergency brake has new design features:
run actuator in the form of a gas generator containing a sealed sliding telescopic housing holds the powder charge and the electric igniter associated with the ignition system of the vehicle;
perform the actuator (brake device) in the form of predicates, which is one of the links sliding telescopic housing and optionally linked via the power cable with automobile;
mount the power rods for the center of mass of the vehicle so that the mounting point and the center of mass of the vehicle lie in odnogolosy rods in the same horizontal plane with the center of mass of the vehicle) is not mandatory and can be used when technically feasible, determined by the design of a particular vehicle.The implementation of the emergency brake actuator in the form of a gas generator containing a sealed sliding telescopic enclosure with a powder charge, provides improved performance of the emergency brake, and execution of a braking device in the form of predicates, which is one of the links sliding telescopic housing and optionally linked via the power cable with automobile, provides the possibility of increasing the braking force. This reduces stopping distance of the vehicle in case of an emergency. Mount the power rods for the center of mass of the vehicle provides its steady movement during braking.In Fig. 1 and 2 shows schematically the proposed emergency brake and its placement on the vehicle; Fig. 3 and 4 the same in the process.In the drawings marked sealed sliding telescopic casing 1, the powder charge 2, the electric igniter 3, the electric wires 4 of the ignition system, prominately 5, power thrust 6 and valve 7.Emergency brake works as follows. When the emergency situation the driver presses the spruce ignites the powder charge 2, and the resulting powder gases pushing telescopic housing 1 to its full length. Its lower part prominately 5, additionally associated with the body force rods 6, punches pavement, causing the vehicle becomes heavily impeded "prophyla" prontoteam furrow in the road surface. Due to the fact that the point of application of resultant force of the braking is behind the center of mass of the vehicle, the motion will be stable even in the case of rotation in the horizontal plane, i.e., when the drift.Mount the power rods in the same horizontal plane with the center of mass of the vehicle eliminates the stalling torque from the braking force.In order to eliminate the possibility of slipping of predicates from the road surface during braking (for example, when the chip before it concrete), the parameters of the powder gas generator are chosen in such a way that prominately guaranteed punched pavement through. After stopping the car is the etching gases of the internal cavity of the gas generator through the valve 7 and the sliding telescopic case is given in Exodus is novenia emergency launch propellant gas generator to produce automatically. To do this, the vehicle must be equipped with devices that register the presence of an emergency (radar, sensors, linear and angular velocity sensors overload, logical device, and the device initiating electric igniter.To prevent injury to the driver and passengers when braking, the emergency brake must be used in conjunction with safety belts or inflatable balloons.Rate if for example the parameters of the emergency brake of the car GAZ-24 under the following conditions: vehicle weight 1825 kg, a speed of 100 km/h, the path deceleration to a complete stop 10 m, pavement concrete/brand 100 thickness of 150 mm At specified parameters driving the average overload during deceleration will be nx4, the braking timet0,72 with (named values overload and time steps are safe for an untrained person).The calculations show that the emergency brake, providing the required parameters of braking of the vehicle, will have the following characteristics: weight predicates 2 kg, the mass of the propellant charge 30 g, the total mass of the emergency brake 10 kg, maksimalnaya 55 MPa.The response time of the emergency brake from the supply voltage to the electric igniter before braking) is 7 to 10-3C. the Amount of vertical movement of the rear part of the vehicle caused by the impact when the extension predicates, does not exceed 2 mm EMERGENCY BRAKE of a motor VEHICLE comprising a braking device and its actuator, mounted on the vehicle body, characterized in that the actuator is placed in the rear part of the vehicle and is made in the form of a gas generator containing a sealed sliding telescopic housing holds the powder charge and the electric igniter associated with the ignition system, when the brake device is designed as a lower sliding element of the telescopic housing, made with the possibility of penetration into the soil and additionally associated with vehicle power rods, mounted on the car body at its center of mass.
FIELD: mechanical engineering; brakes.
SUBSTANCE: proposed device contains brake mechanism installed o frame of vehicle and brought in contact with road bed, and power drive system of brake mechanism. Device is furnished with system to absorb kinetic energy of vehicle in form of slider made as stepped rectangular plate freely placed with clearances in space of box-section guide rigidly secured to frame. Plates of plastic material are secured inside guide to its bases by ribs to overlap working stroke of slider, plates being set at acute angle relative to direction of working stroke of slider. Power drive system of brake mechanism is made in form of housing installed on vehicle frame at tilting in direction of vehicle running with built-in explosive cartridge with electric igniter. Brake mechanism is essentially rod, one end of which is driven into housing of power drive to contact with explosive cartridge, and other end is furnished with wedge to drive rod into road bed material. Coupling link of brake mechanism with slider of energy absorbing system is freely fitted in middle part of rod between two stops.
EFFECT: improved efficiency of braking, simplified design of device.
FIELD: mechanical engineering; transport engineering; brakes.
SUBSTANCE: proposed device contains brake mechanism installed of frame and brought in contact with roadbed, and brake mechanism power drive system. Device is furnished with system to absorb kinetic energy of vehicle. Said system is made in form of cross axle with outer tread rigidly secured to frame and two reels turned onto thread with opposite directions of linear displacement along thread and wire ropes wound on reels, also sets of plate disks made of viscoplastic material freely fitted on axle between outer end faces of reels and stops to secured ends of axle to frame and brought in contact with each other by identical end face rough surfaces and tube of elastic plastic material freely fitted on axle and connecting end faces of reels pointed to each other. Tube is provided with alternating slots orientated square to longitudinal axis of tube. System of power drive of brake mechanism is made in form of housing with built-in explosive cartridge furnished with electric igniter installed on vehicle frame with tilting in direction of straight-ahead movement behind axle with reels. Brake mechanism is essentially rod on end of which is driven inside housing of power drive to contact with explosive cartridge, and other end is furnished with wedge to drive rod into roadbed material. Middle part of rod has fork to connect rod with free ends of ropes wound on reels.
EFFECT: improved efficiency of braking, simplified design of device.
3 cl, 2 dwg
FIELD: mechanical engineering; transport engineering.
SUBSTANCE: invention can be used for quick canceling of speed, increasing efficiency of braking in emergency and safety of traffic. Proposed emergency brake of wheeled vehicle has brake members arranged at both sides of carrying frame of body before rear wheels. Each brake member has liquid and solid phases used at braking by common signal from vehicle can. Liquid phase component is made in form of sticky viscous liquid, and solid phase component, in form of arbitrary shape elements of limited size. Components of both phases and mixed in arranged in container secured on common housing with discharge port. Piston pusher is installed from side opposite to discharge port of mixed phase. Said piston pusher can be shifted to discharge port of housing by pneumatic drive. Mixed phases of components in container are separated by diaphragms from side of discharge port and piston pusher. Said diaphragms are installed for breaking in case of pressure rise in behind-the-piston space. Pneumatic drive includes compressed gas cylinder communicating through electromagnetic valve with behind-the-piston space of piston pusher.
EFFECT: increased intensity of speed canceling in emergency.
3 cl, 3 dwg
FIELD: mechanical engineering; automotive industry.
SUBSTANCE: invention can be used at operation of road vehicles under heavy climatic and conditions on rough terrains. Proposed device contains hinged rods with floating shoes with nails secured on ends of rods and locks-catches of rods. Support brackets of rods are arranged on fixed parts of rear axle of automobile. Rods are made in form of mechanical lifts or lifts connected to power source through rod switch. Power is supplied to rods-lifts through switch cyclically and in turn. Switch is operated either manually or automatically. Device contains drum with tensioner and friction belt closed in to ring around rear wheel by connecting link. Drum is installed on body.
EFFECT: improved technical characteristics of device, increased safety under heavy climatic and weather conditions on terrain.
4 cl, 3 dwg
FIELD: transport engineering.
SUBSTANCE: invention relates to brakes designed for emergency stopping of trucks. Proposed device contains brake wedge and its suspension system arranged under body bottom near truck wheels. Suspension system contains pair of working drums with wound on flexible cables secured at top of wedge, brake drum with brake shoe, and hand winch with working and driven gears arranged on common shaft. Brake shoe is pressed to surface of brake drum by spring and is connected with armature of electromagnet connected to truck battery through emergency switch.
EFFECT: improved safety in operation, reduced wear of brakes.
3 cl, 2 dwg
FIELD: transport engineering; brake system of vehicles.
SUBSTANCE: engagement of device increasing safety of wheeled vehicle in case of emergency is provided by applying pressure to brake pedal exceeding by 10% maximum pressure on brake pedal applied by driver.
EFFECT: provision of safety of vehicle and driver.
FIELD: road vehicles, mounted structures, gates, road guards.
SUBSTANCE: device to deflect energy of head-on impact has movable impact surface installed before object to be protected. Said movable impact surface is provided with longitudinal or bow-shaped stops secured on object to be protected by means of joint providing lowering of stops under action on impact force. Said stops have pointed ends getting into ground at moment when object receives head-on blow or are provided with pointed end pieces ejected by pyrotechnical devices at contact with road pavement and getting into engagement with said pavement. Method of deflection of on head-on impact energy from objects having no strong coupling with ground provides deflecting of impact load by means of protective device. Head-on impact energy is deflected from object to be protected owing to transmission of part of energy to ground at moment of setting of mechanical contact between source of blow and ground by means of device described above.
EFFECT: reduced energy of initial impact falling to object to be protected, increased stability of protected object at collision with running object.
3 cl, 3 dwg
FIELD: motor industry.
SUBSTANCE: invention is related to the field of transport machine building and may be used in braking systems of transport vehicles as emergency and additional braking facility. Device of emergency braking comprises explosive charge located near sharpened stepped rod, braking drum, equipped with braking mechanism, controlled by standard braking system of transport vehicle, and cord for connection of braking drum with sharpened stepped rod. Braking drum is arranged with the possibility of cord disconnection from braking drum, if there is no necessity for further braking or blocking of braking drum rotation.
EFFECT: control of emergency braking mode, expansion of structure resources and increased reliability and efficiency.
FIELD: motor industry.
SUBSTANCE: invention is related to the field of motor industry, namely to devices of emergency braking of transport means. Device of emergency braking includes rod with tip and its drive, which interacts with transport manifold. Rod is arranged as cylindrical and stepped with lower diametre on the side of tip. Drive is equipped with hollow cylinder, which with its internal diametre is coupled with large diametre of rod and has explosive charge arranged at end wall. Rod is connected to braking device by means of rope. End of rope is arranged in the form of ring with fixture and rests on pins, covering upper parts of both legs. Lower parts of two legs are installed on roller outside and inside relative to rod with smaller diametre with the possibility of rotation at this roller till stop against tip collar. Each of legs is installed with the possibility of interaction with one of two movable pins, which are installed in cylindrical cavity of lower part of stepped rod, between which there is a low energy charge.
EFFECT: invention provides for increased reliability and efficiency of emergency braking device due to reliable retention of stepped rod in road carpet.
4 cl, 7 dwg
SUBSTANCE: invention relates to machine building, namely to automotive brakes. Proposed device comprises frame, braking assembly with sharpened elements, and power cylinders. Said frame comprises brackets pivoted to rear axle beam or car body. Each bracket accommodates pneumatic- or electric-drive power cylinder. Brackets are interjointed by threaded axle. Braking assembly is made up of two rollers with sharpened elements. Rollers with inner thread are fitted on axle. Spring is arranged on each side of said axle between roller and bracket.
EFFECT: simplified design.