CN203460856U - Braking system with failure backup function and pressure controllable piston cylinders serving as power source - Google Patents
Braking system with failure backup function and pressure controllable piston cylinders serving as power source Download PDFInfo
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- CN203460856U CN203460856U CN201320581244.4U CN201320581244U CN203460856U CN 203460856 U CN203460856 U CN 203460856U CN 201320581244 U CN201320581244 U CN 201320581244U CN 203460856 U CN203460856 U CN 203460856U
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Abstract
The utility model belongs to the technical field of automobile manufacture, particularly relates to a braking system with a failure backup function and pressure controllable piston cylinders serving as a power source, and aims to provide a system which is fast in response and simple in hydraulic pipeline, and has a single-wheel braking pressure control function and a failure backup function. The braking system is characterized by comprising a front piston cylinder (2), a return spring (3), a front cylinder piston and push rod (4), a vibration absorbing and sealing element (7), a rear piston cylinder (8), a rear cylinder piston (9), a front cylinder standby piston and connecting rod (11), a pedal travel simulator (12), a brake pedal (13), a locking piston cavity (14), an energy accumulator (18), an oil tank (22) and an electromagnetic valve. According to the utility model, the high-voltage energy accumulator component serves as a power source, the front-rear cavity pressure difference of the rear piston cylinder is used for controlling piston motion to generate pressure, and the electromagnetic valve is controlled to perform pressure adjusting or maintaining of a controlled wheel cylinder, the automotive wheel cylinder increasing/reducing effect can be realized through fast switching, and the structure is simple.
Description
Technical field
The utility model belongs to field of automobile, is specifically related to a kind of brake system that pressure controllable piston cylinder is propulsion source of take with the backup of losing efficacy.
Background technology
In recent years, the road-holding property of automobile, stability and safety more and more obtain people's extensive concern, and brake system of car is to guarantee that automobile has one of important system of above-mentioned performance.The application of the systems such as anti-blocking brake system (ABS), electronic stability controlling system (ESP), braking auxiliary (BA), adaptive cruise control system (ACC), active collision avoidance is more and more extensive, and brake system has also been had to requirements at the higher level.Though it is very ripe that traditional hydraulic pressure or Pneumatic automobile brake system have developed, there is the distinct disadvantage such as gas-liquid pipeline complexity, maintenance difficult, braking response be slow, wayward, be more and more difficult to meet the needs of modern chassis electric-control system.
Along with the maturation gradually of electron controls technology, line control brake system becomes the new trend of brake system of car development gradually.In line control brake system, control unit is according to the braking intention of brake pedal signal identification of driver, and produces braking force by actuating unit, can well with the chassis electric-control system combination such as ABS, ESP and ACC.The features such as line control brake system is compared with traditional braking system, has brake efficiency high, simple in structure, and controllability is strong.
Mechanical type brake system electric (EMB) adopts motor as brake actuator, has cancelled traditional hydraulic braking pipeline, has response fast, feature simple in structure.But owing to having adopted a large amount of electronicies package in system, therefore the backup when braking failure is too complicated, high cost; EHB (EHB) is to provide high pressure to pressurize by energy storage, and high-speed switch electromagnetic valve is controlled pressure of wheel braking cylinder, has retained hydraulic tubing, has response fast, the feature that reliability is high.But because it directly controls pressure of wheel braking cylinder, the electromagnetic valve quantity of application is too much, and hydraulic tubing is too loaded down with trivial details, makes system too numerous and jumbled.
Summary of the invention
The purpose of this utility model be to provide a kind of respond fast, hydraulic tubing simple, can carry out single-wheel braking pressure control and have the lost efficacy brake system that pressure controllable piston cylinder is propulsion source of take of backup of having of the backup of losing efficacy.
The utility model is achieved in that
The brake system that pressure controllable piston cylinder is propulsion source of take with the backup of losing efficacy, it comprises secondary piston cylinder, retracing spring, front cylinder piston and push rod, absorbing and packing element, primary piston cylinder, rear cylinder piston, front cylinder stock piston and connecting rod, pedal stroke simulator, brake pedal, lockup piston chamber, energy storage, fuel tank and electromagnetic valve;
Wherein, secondary piston cylinder is cylindric, and front end end face and bottom end face have liquid in-out mouth, has through hole as front cylinder piston and push rod mounting hole on the end face of rear end, in primary piston cylinder leading portion bottom end face rear and front end, has liquid in-out mouth; Primary piston cylinder is comprised of the different cylinder of former and later two outside dimensions, and front end external diameter is greater than rear end external diameter, and the internal diameter of front end external diameter and secondary piston cylinder rear end matches, and in the middle of primary piston cylinder, on end face, has through hole as front cylinder stock piston and connecting rod mounting hole; Piston cylinder is fixedly connected with primary piston cylinder;
Front cylinder piston and push rod are stepped cylinder, have vertically through hole as front cylinder stock piston and push rod mounting hole, front cylinder piston portion is pillar piston structure, front cylinder piston portion is arranged in secondary piston cylinder, pusher section is thick, the middle thin stepped cylinder in two ends, pusher section front end is through front cylinder piston and the push rod mounting hole of secondary piston cylinder, and rear end is fixedly connected with rear cylinder piston; Rear cylinder piston is cylinder, and middle part has through hole as front cylinder piston and push rod mounting hole, and rear cylinder piston is arranged on primary piston cylinder leading portion, and free-running fit between primary piston cylinder, is sleeved on the outside of front cylinder piston and push rod pusher section external diameter least part; Front cylinder stock piston and connecting rod are stepped cylinder, front cylinder stock piston is partly pillar piston structure, front cylinder stock piston is partly arranged in secondary piston cylinder, with secondary piston cylinder free-running fit, front cylinder stock piston part rear end withstands on the front end end face with front cylinder piston and push-rod piston part, pusher section is cylindric, and this pusher section is through front cylinder stock piston and the push rod mounting hole of front cylinder piston and push rod, and rear end is through front cylinder stock piston and the connecting rod mounting hole of primary piston cylinder;
Retracing spring withstands on the front end end face of front cylinder piston and the front cylinder piston portion of push rod; Absorbing and packing element are O type round, be arranged on secondary piston cylinder rear end, primary piston cylinder front end, be sleeved on front cylinder piston and push rod pusher section outside; Lockup piston chamber is positioned at primary piston cylinder back segment, and bottom end face has liquid in-out mouth; Pedal stroke simulator and lockup piston chamber are fixed together, and one end of pedal stroke simulator is connected with brake pedal by connecting rod;
The ante-chamber of primary piston cylinder is all connected with fuel tank with energy storage by electromagnetic valve with back cavity, and secondary piston cylinder is connected with each wheel cylinder by electromagnetic valve, and is connected with fuel tank; Lockup piston chamber is connected with fuel tank by electromagnetic valve.
Electromagnetic valve as above comprises 3-position 4-way solenoid directional control valve, 2/2-way electromagnetic valve, the first electromagnetic valve, the second electromagnetic valve, the 3rd electromagnetic valve and the 4th electromagnetic valve; Two liquid in-out mouths of described primary piston cylinder ante-chamber and back cavity are connected with two liquid in-out mouths of 3-position 4-way solenoid directional control valve, and the 3rd liquid in-out mouth of 3-position 4-way solenoid directional control valve is connected with liquid outlet of fuel tank and a liquid in-out mouth of 2/2-way electromagnetic valve respectively; The inlet of linear control valve is connected with the liquid outlet of energy storage and another liquid outlet of fuel tank respectively; A liquid outlet of fuel tank is also connected with a liquid in-out mouth of 2/2-way electromagnetic valve, and the inlet of fuel tank is connected with the liquid in-out mouth on secondary piston cylinder bottom end end face; Lockup piston chamber is connected with fuel tank by 2/2-way electromagnetic valve.
It also comprises filter, constant current overflow type pump and motor, and the inlet of described linear control valve is connected with the liquid outlet of energy storage and the liquid outlet of filter respectively; The inlet of filter is connected with the liquid outlet of constant current overflow type pump; The inlet of constant current overflow type pump is connected with another liquid outlet of fuel tank; Motor is connected with constant current overflow type pump.
Secondary piston cylinder as above and primary piston cylinder are each made of aluminum, and front cylinder piston and push rod, rear cylinder piston and front cylinder stock piston and connecting rod are cast iron materials and make, and absorbing and packing element adopt elastomeric material to make.
It also comprises coupler, and described front cylinder stock piston and the pusher section of push rod link together by coupler and front cylinder piston and push rod.
It also comprises seal ring, and described seal ring is arranged in the front cylinder piston of secondary piston cylinder and push rod mounting hole, is sleeved on outside front cylinder piston and push rod pusher section.
The beneficial effects of the utility model are:
The utility model adopts high pressure accumulator assembly as propulsion source, has improved brake system response ability.By cavity pressure before and after primary piston cylinder is poor, come control plunger motion to produce pressure, by controlling 2/2-way electromagnetic valve 23, the first electromagnetic valve 24, the second electromagnetic valve 25, the 3rd electromagnetic valve 26 and the 4th electromagnetic valve 27, select controlled wheel cylinder to carry out pressure regulation or pressurize, quick switching by 3-position 4-way solenoid directional control valve 16 realizes the effect that automobile wheel cylinder increases, subtracts, it is convenient to control, simple in structure, control accuracy is high, single-wheel brake-pressure be can realize adjustable, chassis electric-control system and the intelligent control systems such as integrated ABS, TCS and ESP are convenient to.Secondary piston cylinder 2 and primary piston cylinder 9 link together by screw thread actv., have increased the compactedness of system, have also improved power transmission speed and efficiency.The interior retracing spring 3 that arranges of secondary piston cylinder 2, guarantees at unpowered lower piston in initial position; Primary piston cylinder 8 two ends are provided with absorbing and packing element 7, play the effect that the spacing and slowing down vibration of piston is impacted.Pedal sense simulator 12 is used for as chaufeur provides brake feel, and displacement pickup 15 gathers the speed-slackening signal of chaufeur; When brake-by-wire lost efficacy, can make brake pedal directly be connected with piston, realize part brake efficiency, avoid the entirely ineffective loss bringing of brake system, reliability is high.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of take the brake system that pressure controllable piston cylinder is propulsion source with the backup of losing efficacy of the present utility model;
In figure: 1. pressure sensor, 2. secondary piston cylinder, 3. retracing spring, 4. front cylinder piston and push rod, 5. seal ring, 6. coupler, 7. absorbing and packing element, 8. primary piston cylinder, 9. rear cylinder piston, 10. captive nut, 11. front cylinder stock piston and connecting rods, 12. pedal stroke simulators, 13. brake pedals, 14. lockup piston chambeies, 15. displacement pickups, 16. 3-position 4-way solenoid directional control valves, 17. linear control valves, 18. energy storages, 19. filters, 20. constant current overflow type pumps, 21. motors, 22. fuel tanks, 23. 2/2-way electromagnetic valves, 24. first electromagnetic valves, 25. second electromagnetic valves, 26. the 3rd electromagnetic valves, 27. the 4th electromagnetic valves.
The specific embodiment
Below in conjunction with drawings and Examples, a kind of brake system that pressure controllable piston cylinder is propulsion source of take with the backup of losing efficacy of the present utility model is introduced:
As shown in Figure 1, a kind of brake system that pressure controllable piston cylinder is propulsion source of take with the backup of losing efficacy, comprise pressure sensor 1, secondary piston cylinder 2, retracing spring 3, front cylinder piston and push rod 4, seal ring 5, coupler 6, absorbing and packing element 7, primary piston cylinder 8, rear cylinder piston 9, captive nut 10, front cylinder stock piston and connecting rod 11, pedal stroke simulator 12, brake pedal 13, lockup piston chamber 14, displacement pickup 15, 3-position 4-way solenoid directional control valve 16, linear control valve 17, energy storage 18, filter 19, constant current overflow type pump 20, motor 21, fuel tank 22, 2/2-way electromagnetic valve 23, the first electromagnetic valve 24, the second electromagnetic valve 25, the 3rd electromagnetic valve 26 and the 4th electromagnetic valve 27.
Wherein, pressure sensor 1 is arranged on the pipeline between secondary piston cylinder 2 and wheel cylinder, is used for measuring line pressure; Secondary piston cylinder 2 is aluminum cylinder, at its front end end face and bottom end face, has liquid in-out mouth, has through hole as front cylinder piston and push rod mounting hole on its rear end end face.Primary piston cylinder 8 is comprised of the different aluminum cylinder of former and later two outside dimensions, the external diameter of front end is greater than rear end external diameter, the internal diameter of the external diameter of its front end and secondary piston cylinder 2 rear ends matches, in the middle of primary piston cylinder 8, on end face, have through hole as front cylinder stock piston and connecting rod mounting hole, in primary piston cylinder leading portion bottom end face rear and front end, have liquid in-out mouth.Piston cylinder 2 is fixedly connected with by screw thread with primary piston cylinder 8.Front cylinder piston and push rod 4 are cast iron materials stepped cylinder processed, have vertically through hole as front cylinder stock piston and push rod mounting hole, front cylinder piston portion is pillar piston structure, front cylinder piston portion is arranged in secondary piston cylinder 2, pusher section is thick, the middle thin stepped cylinder in two ends, its front end is through front cylinder piston and the push rod mounting hole of secondary piston cylinder 2, and rear end is fixedly connected with rear cylinder piston 9 with captive nut 10 by self stepped shaft.Rear cylinder piston 9 is cast iron materials rounding cylinder, middle part has through hole as front cylinder piston and push rod mounting hole, it is arranged on primary piston cylinder 8 leading portions, and free-running fit between primary piston cylinder 8, the outside that is sleeved on front cylinder piston and push rod 4 pusher section external diameter least parts, forms former and later two cavitys at primary piston cylinder 8 leading portions.Front cylinder stock piston and connecting rod 11 are the stepped cylinder of cast iron materials system, front cylinder stock piston is partly pillar piston structure, front cylinder stock piston is partly arranged in secondary piston cylinder 2, with secondary piston cylinder 2 free-running fits, front cylinder stock piston part rear end withstands on the front end end face of front cylinder piston and push rod 4 piston portions, pusher section is cylindric, this pusher section is through front cylinder stock piston and the push rod mounting hole of front cylinder piston and push rod 4, rear end is through front cylinder stock piston and connecting rod mounting hole, this pusher section links together by coupler 6 and front cylinder piston and push rod 4.Retracing spring 3 withstands on the front end end face of front cylinder piston and the front cylinder piston portion of push rod 4, plays reset response; Seal ring 5 is arranged in the front cylinder piston of secondary piston cylinder 2 and push rod mounting hole, is sleeved on front cylinder piston and push rod pusher section outside, plays sealing function; Absorbing and packing element 7 adopt elastomeric material to make, it is O type round, it be arranged on secondary piston cylinder 2 rear ends, primary piston cylinder 8 front end, be sleeved on front cylinder piston and push rod pusher section outside, realize the sealing of secondary piston cylinder 2 rear ends, primary piston cylinder 8, front cylinder piston and push rod 4, and the vibration of the front cylinder piston of absorption and push rod 4, guarantee the sealing between three.Lockup piston chamber 14 is positioned at primary piston cylinder 8 back segments, at its bottom end face, has liquid in-out mouth.Pedal stroke simulator 12 is fixed together with lockup piston chamber 14, and one end of pedal stroke simulator 12 is connected with brake pedal 13 by connecting rod, and the other end is connected with lockup piston chamber 14.Two liquid in-out mouths of primary piston cylinder 8 ante-chambers and back cavity are connected by hydraulic tubing with two liquid in-out mouths of 3-position 4-way solenoid directional control valve 16, the 3rd liquid in-out mouth of 3-position 4-way solenoid directional control valve 16 is connected by hydraulic tubing with 23 1 liquid in-out mouths of a liquid outlet and 2/2-way electromagnetic valve of fuel tank 22 respectively, and another liquid in-out mouth of 2/2-way electromagnetic valve 23 is connected by hydraulic tubing with the liquid in-out mouth in lockup piston chamber.The inlet of linear control valve 17 is connected by hydraulic tubing with the liquid outlet of filter 19 with the liquid outlet of energy storage 18 respectively.The inlet of filter 19 is connected by hydraulic tubing with the liquid outlet of constant current overflow type pump 20.The inlet of constant current overflow type pump 20 is connected by hydraulic tubing with another liquid outlet of fuel tank 22.A liquid outlet of fuel tank 22 is also connected by hydraulic tubing with an inlet of 2/2-way electromagnetic valve 23, and the inlet of fuel tank is connected by hydraulic tubing with the liquid in-out mouth on secondary piston cylinder 2 cavitys.Motor 21 is connected with constant current overflow type pump 20, for it provides power.Lockup piston chamber 14 is connected with fuel tank 22 by 2/2-way electromagnetic valve 25.Being arranged on brake pedal 13 of displacement pickup 15.
Pressure sensor 1, retracing spring 3, seal ring 5, coupler 6, absorbing and packing element 7, captive nut 10, brake pedal 13, lockup piston chamber 14,3-position 4-way solenoid directional control valve 16, linear control valve 17, energy storage 18, filter 19, constant current overflow type pump 20, motor 21, fuel tank 22,2/2-way electromagnetic valve and high-speed solenoid valve 23 are matured product, are commercially available.Pedal stroke simulator 12 is prior art with the position relationship of brake pedal 13.
Below the working process of system is described in detail:
During wheel cylinder supercharging, first 3-position 4-way solenoid directional control valve 16 right position work, fluid is pressed into rapidly the back cavity of primary piston cylinder 8 from high pressure accumulator 18, and the back cavity of primary piston cylinder is now connected with fuel tank, in low pressure.Because the pressure of back cavity is greater than the pressure of ante-chamber, rear cylinder piston 9 will travel forward, thereby cylinder piston advances forward before promoting increases the pressure of secondary piston cylinder 2.One that now opens in 2/2-way electromagnetic valve 23, the first electromagnetic valve 24, the second electromagnetic valve 25, the 3rd electromagnetic valve 26, the 4th electromagnetic valve 27 just can be to corresponding wheel cylinder pressurization.
During pressurize, optionally close 2/2-way electromagnetic valve 23, the first electromagnetic valve 24, the second electromagnetic valve 25, the 3rd electromagnetic valve 26, the 4th electromagnetic valve 27, just can realize the pressurize of corresponding wheel cylinder.
In decompression process, 3-position 4-way solenoid directional control valve 16 left position work, fluid is pressed into rapidly the ante-chamber of primary piston cylinder from high pressure accumulator 18, because the pressure of ante-chamber is greater than the pressure of back cavity, rear cylinder piston 9 will move backward, thereby pull front cylinder piston to move backward, the pressure of secondary piston cylinder 2 is reduced, one that now opens in 2/2-way electromagnetic valve 23, the first electromagnetic valve 24, the second electromagnetic valve 25, the 3rd electromagnetic valve 26, the 4th electromagnetic valve 27 just can be to corresponding wheel cylinder decompression.There is high hydraulic brake fluid in lockup piston chamber 14, prevents that pedal sense simulator 12 from moving, and guarantees when system works, and brake pedal can not be connected with front cylinder stock piston and connecting rod 11.When system breaks down, 2/2-way electromagnetic valve 23, the first electromagnetic valve 24, the second electromagnetic valve 25, the 3rd electromagnetic valve 26, the 4th electromagnetic valve 27 and electromagnetic valve 17 are opened, be communicated with primary piston cylinder 8, lockup piston chamber 14 and fuel tank 22, pressure decreased in lockup piston chamber 14, the power that brake pedal 13 is produced can directly act on front cylinder stock piston and connecting rod 11, coupler 6 is separated with cylinder piston and push rod 4 by front cylinder stock piston and connecting rod 11, the motion of promotion stock piston, generating portion braking force.
Claims (6)
1. the brake system that pressure controllable piston cylinder is propulsion source of take with the backup of losing efficacy, is characterized in that: it comprises secondary piston cylinder (2), retracing spring (3), front cylinder piston and push rod (4), absorbing and packing element (7), primary piston cylinder (8), rear cylinder piston (9), front cylinder stock piston and connecting rod (11), pedal stroke simulator (12), brake pedal (13), lockup piston chamber (14), energy storage (18), fuel tank (22) and electromagnetic valve;
Wherein, secondary piston cylinder (2) is cylindric, and front end end face and bottom end face have liquid in-out mouth, has through hole as front cylinder piston and push rod mounting hole on the end face of rear end, in primary piston cylinder leading portion bottom end face rear and front end, has liquid in-out mouth; Primary piston cylinder (8) is comprised of the different cylinder of former and later two outside dimensions, front end external diameter is greater than rear end external diameter, the internal diameter of front end external diameter and secondary piston cylinder (2) rear end matches, and in the middle of primary piston cylinder (8), on end face, has through hole as front cylinder stock piston and connecting rod mounting hole; Piston cylinder (2) is fixedly connected with primary piston cylinder (8);
Front cylinder piston and push rod (4) are stepped cylinder, have vertically through hole as front cylinder stock piston and push rod mounting hole, front cylinder piston portion is pillar piston structure, front cylinder piston portion is arranged in secondary piston cylinder (2), pusher section is thick, the middle thin stepped cylinder in two ends, pusher section front end is through front cylinder piston and the push rod mounting hole of secondary piston cylinder (2), and rear end is fixedly connected with rear cylinder piston (9); Rear cylinder piston (9) is cylinder, middle part has through hole as front cylinder piston and push rod mounting hole, rear cylinder piston (9) is arranged on primary piston cylinder (8) leading portion, and free-running fit between primary piston cylinder (8), is sleeved on the outside of front cylinder piston and push rod (4) pusher section external diameter least part; Front cylinder stock piston and connecting rod (11) are stepped cylinder, front cylinder stock piston is partly pillar piston structure, front cylinder stock piston is partly arranged in secondary piston cylinder (2), with secondary piston cylinder (2) free-running fit, front cylinder stock piston part rear end withstands on the front end end face with front cylinder piston and push rod (4) piston portion, pusher section is cylindric, this pusher section is through front cylinder stock piston and the push rod mounting hole of front cylinder piston and push rod (4), and rear end is through front cylinder stock piston and the connecting rod mounting hole of primary piston cylinder (8);
Retracing spring (3) withstands on the front end end face of front cylinder piston and the front cylinder piston portion of push rod (4); Absorbing and packing element (7) are O type round, be arranged on secondary piston cylinder (2) rear end, primary piston cylinder (8) front end, be sleeved on front cylinder piston and push rod pusher section outside; Lockup piston chamber (14) is positioned at primary piston cylinder (8) back segment, and bottom end face has liquid in-out mouth; Pedal stroke simulator (12) is fixed together with lockup piston chamber (14), and one end of pedal stroke simulator (12) is connected with brake pedal (13) by connecting rod;
The ante-chamber of primary piston cylinder (8) is all connected with fuel tank (22) with energy storage (18) by electromagnetic valve with back cavity, and secondary piston cylinder (2) is connected with each wheel cylinder by electromagnetic valve, and is connected with fuel tank (22).
2. a kind of brake system that pressure controllable piston cylinder is propulsion source of take with the backup of losing efficacy according to claim 1 is characterized in that: described electromagnetic valve comprises 3-position 4-way solenoid directional control valve (16), 2/2-way electromagnetic valve (23), the first electromagnetic valve (24), the second electromagnetic valve (25), the 3rd electromagnetic valve (26) and the 4th electromagnetic valve (27); Two liquid in-out mouths of described primary piston cylinder (8) ante-chamber and back cavity are connected with two liquid in-out mouths of 3-position 4-way solenoid directional control valve (16), and the 3rd liquid in-out mouth of 3-position 4-way solenoid directional control valve (16) is connected with liquid outlet of fuel tank (22) and a liquid in-out mouth of 2/2-way electromagnetic valve (23) respectively; The inlet of linear control valve (17) is connected with another liquid outlet of fuel tank (22) with the liquid outlet of energy storage (18) respectively; A liquid outlet of fuel tank (22) is also connected with a liquid in-out mouth of 2/2-way electromagnetic valve (23), and the inlet of fuel tank is connected with the liquid in-out mouth on the end face of secondary piston cylinder (2) bottom; Lockup piston chamber (14) is connected with fuel tank (22) by 2/2-way electromagnetic valve (25).
3. a kind of brake system that pressure controllable piston cylinder is propulsion source of take with the backup of losing efficacy according to claim 2 is characterized in that: it also comprises filter (19), constant current overflow type pump (20) and motor (21), and the inlet of described linear control valve (17) is connected with the liquid outlet of filter (19) with the liquid outlet of energy storage (18) respectively; The inlet of filter (19) is connected with the liquid outlet of constant current overflow type pump (20); The inlet of constant current overflow type pump (20) is connected with another liquid outlet of fuel tank (22); Motor (21) is connected with constant current overflow type pump (20).
4. a kind of brake system that pressure controllable piston cylinder is propulsion source of take with the backup of losing efficacy according to claim 1 is characterized in that: described secondary piston cylinder (2) and primary piston cylinder (8) are each made of aluminum, front cylinder piston and push rod (4), rear cylinder piston (9) and front cylinder stock piston and connecting rod (11) are cast iron materials and make, and absorbing and packing element (7) adopt elastomeric material to make.
5. a kind of brake system that pressure controllable piston cylinder is propulsion source of take with the backup of losing efficacy according to claim 1 is characterized in that: it also comprises coupler (6), and described front cylinder stock piston and the pusher section of push rod (11) link together by coupler (6) and front cylinder piston and push rod (4).
6. a kind of brake system that pressure controllable piston cylinder is propulsion source of take with the backup of losing efficacy according to claim 1 is characterized in that: it also comprises seal ring (5), and described seal ring (5) is arranged in the front cylinder piston of secondary piston cylinder (2) and push rod mounting hole, be sleeved on front cylinder piston and push rod pusher section outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320581244.4U CN203460856U (en) | 2013-09-20 | 2013-09-20 | Braking system with failure backup function and pressure controllable piston cylinders serving as power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320581244.4U CN203460856U (en) | 2013-09-20 | 2013-09-20 | Braking system with failure backup function and pressure controllable piston cylinders serving as power source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203460856U true CN203460856U (en) | 2014-03-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320581244.4U Withdrawn - After Issue CN203460856U (en) | 2013-09-20 | 2013-09-20 | Braking system with failure backup function and pressure controllable piston cylinders serving as power source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203460856U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104442780A (en) * | 2013-09-20 | 2015-03-25 | 吉林大学 | Brake system with failure backup and using pressure controllable piston cylinder as power source |
| CN107031594A (en) * | 2016-10-21 | 2017-08-11 | 奇瑞汽车股份有限公司 | A kind of automotive electronics differential latch system and its method of work |
| CN108443244A (en) * | 2018-05-16 | 2018-08-24 | 泸州职业技术学院 | A kind of electronic control pressure reducing system |
| CN110157877A (en) * | 2019-04-28 | 2019-08-23 | 江苏大学 | Double-driving hole wall system of processing and method |
| CN110799393A (en) * | 2017-06-29 | 2020-02-14 | 爱皮加特股份公司 | Device for a hydraulic actuating system |
| US10919508B2 (en) | 2019-07-10 | 2021-02-16 | Bwi (Shanghai) Co., Ltd. | Master cylinder and brake-by-wire system |
-
2013
- 2013-09-20 CN CN201320581244.4U patent/CN203460856U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104442780A (en) * | 2013-09-20 | 2015-03-25 | 吉林大学 | Brake system with failure backup and using pressure controllable piston cylinder as power source |
| CN104442780B (en) * | 2013-09-20 | 2017-04-05 | 吉林大学 | The brakes with pressure controllable piston cylinder as power source with failure backup |
| CN107031594A (en) * | 2016-10-21 | 2017-08-11 | 奇瑞汽车股份有限公司 | A kind of automotive electronics differential latch system and its method of work |
| CN110799393A (en) * | 2017-06-29 | 2020-02-14 | 爱皮加特股份公司 | Device for a hydraulic actuating system |
| CN110799393B (en) * | 2017-06-29 | 2022-09-13 | 爱皮加特股份公司 | Device for a hydraulic actuating system |
| CN108443244A (en) * | 2018-05-16 | 2018-08-24 | 泸州职业技术学院 | A kind of electronic control pressure reducing system |
| CN110157877A (en) * | 2019-04-28 | 2019-08-23 | 江苏大学 | Double-driving hole wall system of processing and method |
| US10919508B2 (en) | 2019-07-10 | 2021-02-16 | Bwi (Shanghai) Co., Ltd. | Master cylinder and brake-by-wire system |
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