CN209870363U - Electric power-assisted braking system without partial decoupling of feedback plate - Google Patents
Electric power-assisted braking system without partial decoupling of feedback plate Download PDFInfo
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- CN209870363U CN209870363U CN201920695474.0U CN201920695474U CN209870363U CN 209870363 U CN209870363 U CN 209870363U CN 201920695474 U CN201920695474 U CN 201920695474U CN 209870363 U CN209870363 U CN 209870363U
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Abstract
The utility model discloses an electronic helping hand braking system of no feedback disk part decoupling zero, braking system is including first gear, the second gear, the helping hand motor, the jar is built to the helping hand, the brake master cylinder, the liquid storage pot, hydraulic control unit and automatically controlled unit, wherein the helping hand motor is connected with first gear and orders about first gear and rotates, first gear meshes with the second gear and drives the synchronous rotation of second gear, the centre spiro union of second gear has the lead screw, the second gear rotates the in-process and drives the lead screw and remove about, the front end of brake master cylinder is inserted and is equipped with pedal push rod, pedal push rod can promote the second piston and remove, hydraulic control unit and helping hand motor all are connected with the automatically controlled unit, the work of automatically controlled unit control helping hand motor and hydraulic control unit. Has the advantages that: the system can implement functions of active braking, failure backup, braking energy recovery and the like, and can effectively integrate electronic stability programs (and other active control technologies) to realize intelligent control of the vehicle.
Description
Technical Field
The utility model relates to an electronic helping hand braking system, in particular to electronic helping hand braking system of no feedback disk part decoupling zero.
Background
At present, the motorization and intellectualization of automobiles become an important development trend in the field of automobiles, the change puts higher requirements on automobile braking systems, the braking systems are required to provide reliable braking safety and enough braking efficiency, and can be matched with regenerative braking to recover braking energy to the maximum extent, the endurance mileage of hybrid electric vehicles and pure electric vehicles is improved, the braking response is fast enough, the intelligent driving auxiliary system has enough active braking capacity, the braking pressure control is accurate, the intelligent driving auxiliary system can be used as a bottom actuator of the intelligent driving auxiliary system while the safety is improved, enough comfortable driving and riding experience is ensured, and more diversified and intelligent driving modes are provided. The conventional vacuum power-assisted brake system is difficult to meet the requirements, so that the conventional vacuum power-assisted brake system is difficult to be carried on an automobile and an electric automobile with an automatic driving function, the application is gradually reduced, and various novel electric control brake systems come into force.
The electric power-assisted brake system can realize partial decoupling or complete decoupling between the pedal force of a driver and the motor power assistance, and ensures that a vehicle has good pedal feeling while braking energy is recovered. Meanwhile, the electric power-assisted braking system can realize the function of changing the power-assisted ratio by changing the power-assisted curve of the motor, and can realize automatic braking under emergency conditions by matching with sensors such as a radar and a camera. In summary, the development of the electric power-assisted brake system and the control method thereof is the mainstream direction of the electric and intelligent automobile brake system.
However, most of the existing electric power-assisted brake systems adopt a feedback disc to couple the pedal force of a driver and the power of a motor, and the control algorithm is complicated due to the fact that the shape of an inner ring and an outer ring of the feedback disc is poor when the control algorithm is designed; in addition, servo-assistance is realized to the feedback disc structure, then requires the pedal stroke sensor to measure the inner and outer ring displacement difference of the feedback disc, so that the pedal stroke sensor is difficult to arrange, even two displacement sensors are needed, the cost is higher, and the arrangement on a real vehicle is difficult to some extent.
Some electric power-assisted brake systems adopt a complete decoupling scheme, a plurality of electromagnetic valves for decoupling and electromagnetic valves for pedal feel adjustment are generally required to be arranged, and an Electronic Control Unit (ECU) needs to accurately control the plurality of electromagnetic valves, so that the control difficulty of the whole hydraulic brake system is high, and the simulated pedal feel of a driver is different from the traditional pedal feel.
Disclosure of Invention
The utility model aims at under the prerequisite of guaranteeing braking efficiency and driver pedal sensation, cancel feedback disk structure, the control degree of difficulty of lowering system complexity and braking system improves the response speed of system and brake pressure's control accuracy, realizes the active control of hydraulic braking force and the electronic helping hand braking system of a no feedback disk part decoupling zero that provides.
The utility model provides an electric power-assisted braking system without decoupling of a feedback plate part, which comprises a first gear, a second gear, a power-assisted motor, a power-assisted pressure building cylinder, a brake master cylinder, a liquid storage tank, a hydraulic control unit and an electric control unit, wherein the power-assisted motor is connected with the first gear and drives the first gear to rotate, the first gear is meshed with the second gear and drives the second gear to synchronously rotate, a lead screw is screwed in the middle of the second gear, the lead screw is driven to move left and right during the rotation of the second gear, the rear end of the lead screw is connected with a mandril, the mandril is connected with a first piston in the inner cavity of the power-assisted pressure building cylinder, the lead screw drives the mandril to move so as to drive the first piston to move in the inner cavity of the power-assisted pressure building cylinder, a second piston and a third piston are assembled in the inner cavity of the brake master cylinder, the inner cavity of the boosting pressure building cylinder is communicated with the first working cavity through a pipeline, the second working cavity is formed between the second piston and the third piston, the third working cavity is formed between the third piston and the rear end of the inner cavity of the brake master cylinder, the liquid storage tank is communicated with the second working cavity and the third working cavity through pipelines, the hydraulic control unit is also communicated with the second working cavity and the third working cavity through pipelines, a pedal push rod is inserted at the front end of the brake master cylinder and can push the second piston to move, the hydraulic control unit and the boosting motor are both connected with the electric control unit, and the electric control unit controls the work of the boosting motor and the hydraulic control unit.
The diameter of the second gear is larger than the diameter of the first gear.
The ball is assembled at the position where the screw rod is in threaded connection with the second gear, and the bearing is assembled at the connection position of the screw rod and the ejector rod.
A first return spring is assembled between the rear end of a first piston in the inner cavity of the power-assisted pressure building cylinder and the rear end of the inner cavity of the power-assisted pressure building cylinder.
The front end of the inner cavity of the brake main cylinder is provided with a sealing sleeve, the pedal push rod is inserted in the sealing sleeve and is in sliding contact with the sealing sleeve, a second return spring is assembled in a second working cavity in the inner cavity of the brake main cylinder, and a third return spring is assembled in a third working cavity in the inner cavity of the brake main cylinder.
The pedal push rod is provided with a stop block, a fourth return spring is assembled between the stop block and the front end of the brake master cylinder, the pedal push rod is connected with a pedal stroke sensor, the pedal stroke sensor is connected with the electronic control unit, and the pedal stroke sensor can transmit displacement data of the pedal push rod to the electronic control unit in real time.
The hydraulic control unit is connected with a brake wheel cylinder, the hydraulic control unit controls the work of the brake wheel cylinder, a hydraulic pressure sensor is connected on a connecting pipeline of the hydraulic control unit and the brake master cylinder, the hydraulic pressure sensor is connected with the electric control unit, and the hydraulic pressure sensor can transmit pressure data to the electric control unit in real time.
The power-assisted motor, the electric control unit, the hydraulic control unit, the pedal stroke sensor and the hydraulic pressure sensor are all assembled by existing equipment, and therefore specific models and specifications are not described repeatedly.
The utility model discloses a theory of operation:
the utility model provides a no electronic helping hand braking system of feedback disk part decoupling zero, including three kinds of mode of conventional electronic helping hand braking, active braking, the backup braking that became invalid, specifically as follows:
firstly, a conventional electric power-assisted braking function:
when the system is in a conventional electric power-assisted braking mode, a driver steps on a brake pedal to push a pedal push rod to translate rightwards, the pedal push rod overcomes the counterforce of a fourth return spring, penetrates through the cylinder wall of the brake main cylinder and the sealing sleeve and directly acts on a second piston in the inner cavity of the brake main cylinder, and the purpose that the brake main cylinder is pressurized manually is achieved.
Meanwhile, the pedal stroke sensor collects the displacement of the pedal push rod, the displacement signal is sent to the electronic control unit, the electronic control unit processes the displacement signal, the braking intention of a driver is analyzed, the assistance value required by the assistance motor is obtained according to the assistance characteristic curve, the control command is sent to the assistance motor, the assistance motor generates corresponding rotating speed and torque according to the command, the output shaft of the assistance motor drives the first gear to drive the second gear to rotate, the second gear drives the lead screw to translate rightwards through the ball screw structure, the lead screw pushes the first piston to build pressure for assistance, then the first working cavity of the brake master cylinder filled with hydraulic oil is built pressure through the pipeline, and the second piston is pushed to realize the boosting pressure building of the brake master cylinder.
In the process, manpower generated by treading of a pedal by a driver and the assistance of the motor are coupled in a first working cavity in the brake master cylinder.
When the driver loosens the brake pedal, the pedal push rod returns under the action of the fourth return spring, and the electric power-assisted mechanism returns in a reverse direction through the power-assisted motor.
Second, active braking function
When a driver does not step on a brake pedal, namely a pedal stroke sensor does not detect a displacement signal, if a vehicle-mounted environment sensing sensor (such as a speed measuring sensor, a distance measuring sensor, a camera, a radar and the like) measures that the distance between a vehicle and a front obstacle is too short, an electric control unit receives information and judges that a braking measure needs to be taken or other control devices (such as an automatic driving system and an active braking system) send an active braking request, and an electric power-assisted braking system enters an active braking mode.
Under the active braking mode, the electric control unit analyzes signals transmitted by other vehicle-mounted sensors, braking force required by a vehicle is judged, a control circuit sends an instruction to the power-assisted motor, the power-assisted motor drives the first gear to drive the second gear to rotate according to the instruction, the ejector rod is pushed to translate rightwards through the ball screw structure, and therefore the first piston is pushed to build pressure for the power-assisted pressure building cylinder, pressure is built for the first working cavity in the brake main cylinder through a pipeline, the second piston is pushed to build pressure for the brake main cylinder, and line control active braking is achieved. In the active braking mode, once the electronic control unit receives a displacement signal of the pedal stroke sensor, the system is immediately switched into a conventional electric power-assisted braking mode.
Thirdly, a failure backup function:
according to the relevant requirements, when the brake system fails or some brake components are in failure, the brake system still needs to ensure that a certain brake strength can be generated so as to ensure safety and reliability.
The utility model provides an electronic helping hand braking system of no feedback disk part decoupling zero breaks down at helping hand motor or certain driving medium, makes the unable normal during operation of electronic helping hand subassembly. The driver can still push the pedal push rod to directly act on the second piston by stepping on the brake pedal to build pressure for the brake main cylinder, so that the brake system can still generate certain brake force to realize the failure backup function.
The utility model has the advantages that:
the utility model provides a no electronic helping hand braking system of feedback disk part decoupling zero adopts the thrust that the pedal push rod directly promoted the master cylinder piston and the mode of the hydraulic pressure force coupling in the brake master cylinder that motor helping hand promotes the pneumatic cylinder production, has cancelled the feedback disk structure, the control algorithm degree of difficulty of reduction system architecture complexity and braking system. The utility model discloses a motor drive and gear and ball structure transmission turn into the translation output to the rotation output of motor, and the drive ratio is big, and transmission efficiency is high and compact structure has improved the response speed of system and brake pressure's control accuracy, can establish sufficient brake pressure in the short time, possesses initiative brake capacity. In the conventional power-assisted braking mode, the pedal push rod directly acts on the brake master cylinder, and the pedal force and the motor power are coupled in the master cylinder, so that the servo control is easily realized, and the real pedal feeling can be provided for a driver; the utility model discloses under the backup mode of inefficacy, owing to cancelled footboard sensation simulator, therefore do not have idle stroke, response speed is fast, and work is more reliable, and driver's accessible brake pedal builds the current vehicle braking of compaction for the brake master cylinder rapidly. The utility model discloses owing to be the electronic helping hand braking system of partial decoupling zero, consequently not set up the solenoid valve that is used for the solenoid valve of decoupling zero and footboard sensation to adjust, electrically controlled unit ECU does not need a plurality of solenoid valves of accurate control, has simplified the control degree of difficulty of whole hydraulic braking system. The utility model discloses cancelled the footboard simulator structure, realized the decoupling zero of manpower and motor helping hand, can provide the footboard sensation close with traditional vacuum booster. The utility model discloses an electric power-assisted brake system can implement functions such as active braking, inefficacy backup and braking energy recovery, and active control techniques such as Electron Stability Program (ESP), self-Adaptation Cruise Control (ACC) can also be effectively integrated, realize vehicle intelligent control.
Drawings
Fig. 1 is the overall structure schematic diagram of the electric power-assisted braking system of the present invention.
Fig. 2 is an enlarged schematic view of the connection structure of the screw rod and the ejector rod of the present invention.
The labels in the above figures are as follows:
1. the brake system comprises a first gear 2, a second gear 3, a power-assisted motor 4, a power-assisted pressure building cylinder 5 and a brake master cylinder
6. Liquid storage tank 7, hydraulic control unit 8, electric control unit 9, lead screw 10 and ejector rod
11. A first piston 12, a second piston 13, a third piston 14, a first working chamber
15. A second working chamber 16, a third working chamber 17, a pedal push rod 18 and a ball
19. Bearing 20, first return spring 21, seal cover 22, second return spring
23. Third return spring 24, stopper 25, fourth return spring 26, pedal stroke sensor
27. Brake cylinders 28, hydraulic pressure sensors.
Detailed Description
Please refer to fig. 1 to 2:
the utility model provides an electric power-assisted brake system without decoupling of a feedback plate part, which comprises a first gear 1, a second gear 2, a power-assisted motor 3, a power-assisted pressure building cylinder 4, a brake main cylinder 5, a liquid storage tank 6, a hydraulic control unit 7 and an electric control unit 8, wherein the power-assisted motor 3 is connected with the first gear 1 and drives the first gear 1 to rotate, the first gear 1 is meshed with the second gear 2 and drives the second gear 2 to rotate synchronously, a lead screw 9 is screwed in the middle of the second gear 2, the lead screw 9 is driven to move left and right in the rotation process of the second gear 2, the rear end of the lead screw 9 is connected with a mandril 10, the mandril 10 is connected with a first piston 11 in the inner cavity of the power-assisted pressure building cylinder 4, the lead screw 9 drives the mandril 10 to move and drives the first piston 11 to move in the inner cavity of the power-assisted pressure building cylinder 4, a second piston 12, a first working chamber 14 is formed between the second piston 12 and the front end of the inner chamber of the brake master cylinder 5, the inner chamber of the boosting pressure building cylinder 4 is communicated with the first working chamber 14 through a pipeline, a second working chamber 15 is formed between the second piston 12 and the third piston 13, a third working chamber 16 is formed between the third piston 13 and the rear end of the inner chamber of the brake master cylinder 5, the liquid storage tank 6 is communicated with the second working chamber 15 and the third working chamber 16 through a pipeline, the hydraulic control unit 7 is also communicated with the second working chamber 15 and the third working chamber 16 through a pipeline, a pedal push rod 17 is inserted into the front end of the brake master cylinder 5, the pedal push rod 17 can push the second piston 12 to move, the hydraulic control unit 7 and the boosting motor 3 are both connected with the electronic control unit 8, and the electronic control unit 8 controls the boosting motor 3 and the hydraulic control unit 7 to work.
The diameter of the second gear 2 is larger than the diameter of the first gear 1.
The ball 18 is arranged at the position where the screw shaft 9 is in threaded connection with the second gear 2, and the bearing 19 is arranged at the connection position of the screw shaft 9 and the ejector rod 10.
A first return spring 20 is arranged between the rear end of the first piston 11 in the inner cavity of the boosting and pressure building cylinder 4 and the rear end of the inner cavity of the boosting and pressure building cylinder 4.
The front end of the inner cavity of the brake main cylinder 5 is provided with a sealing sleeve 21, a pedal push rod 17 is inserted in the sealing sleeve 21, the pedal push rod 17 is in sliding contact with the sealing sleeve 21, a second return spring 22 is arranged in a second working cavity 15 in the inner cavity of the brake main cylinder 5, and a third return spring 23 is arranged in a third working cavity 16 in the inner cavity of the brake main cylinder 5.
The pedal push rod 17 is provided with a stop block 24, a fourth return spring 25 is assembled between the stop block 24 and the front end of the brake master cylinder 5, the pedal push rod 17 is connected with a pedal stroke sensor 26, the pedal stroke sensor 26 is connected with the electronic control unit 8, and the pedal stroke sensor 26 can transmit displacement data of the pedal push rod 17 to the electronic control unit 8 in real time.
The hydraulic control unit 7 is connected with a brake wheel cylinder 27, the hydraulic control unit 7 controls the work of the brake wheel cylinder 27, a hydraulic pressure sensor 28 is connected to a connecting pipeline of the hydraulic control unit 7 and the brake master cylinder 5, the hydraulic pressure sensor 28 is connected with the electronic control unit 8, and the hydraulic pressure sensor 28 can transmit pressure data to the electronic control unit 8 in real time.
The power-assisted motor 3, the electric control unit 8, the hydraulic control unit 7, the pedal stroke sensor 26 and the hydraulic pressure sensor 28 are all assembled by existing equipment, and therefore specific models and specifications are not described in detail.
The utility model discloses a theory of operation:
the utility model provides a no electronic helping hand braking system of feedback disk part decoupling zero, including three kinds of mode of conventional electronic helping hand braking, active braking, the backup braking that became invalid, specifically as follows:
firstly, a conventional electric power-assisted braking function:
when the system is in a conventional electric power-assisted braking mode, a driver steps on a brake pedal to push the pedal push rod 17 to translate rightwards, the pedal push rod 17 overcomes the counterforce of the fourth return spring 25, penetrates through the cylinder wall of the brake main cylinder 5 and the sealing sleeve 21, and directly acts on the second piston 12 in the inner cavity of the brake main cylinder 5, so that the brake main cylinder 5 is pressurized manually.
Meanwhile, the pedal stroke sensor 26 collects the displacement of the pedal push rod 17, sends a displacement signal to the electronic control unit 8, the electronic control unit 8 processes the displacement signal, analyzes the braking intention of a driver, obtains a power assisting value required by the power assisting motor 3 according to a power assisting characteristic curve, and sends a control command to the power assisting motor 3, the power assisting motor 3 generates corresponding rotating speed and torque according to the command, an output shaft of the power assisting motor 3 drives the first gear 1 to drive the second gear 2 to rotate, the second gear 2 drives the lead screw 9 to translate rightwards through a ball screw structure, the lead screw 9 pushes the first piston 11 to build pressure for the power assisting pressure building cylinder 4 through the ejector rod 10, and then builds pressure for the first working cavity 14 of the brake master cylinder 5 filled with hydraulic oil through a pipeline, and pushes the second piston 12 to realize electric power assisting pressure building of the brake master cylinder 5.
The manual force generated by the driver pedaling during this process is coupled with the motor assist in the first working chamber 14 in the master cylinder 5.
When the driver releases the brake pedal, the pedal push rod 17 returns under the action of the fourth return spring 25, and the electric power-assisted mechanism returns reversely through the power-assisted motor 3.
Fourth, active braking function
When the driver does not step on the brake pedal, that is, the pedal stroke sensor 26 does not detect a displacement signal, if the vehicle-mounted environment sensing sensor (such as a speed measurement sensor, a distance measurement sensor, a camera, a radar, etc.) measures that the distance between the vehicle and the obstacle in front is too short, the electric control unit 8 receives the information and judges that a braking measure must be taken or other control devices (such as an automatic driving system and an active braking system) send an active braking request, and the electric power-assisted braking system enters an active braking mode.
In an active braking mode, the electric control unit 8 analyzes signals transmitted by other vehicle-mounted sensors, braking force required by a vehicle is judged, a control circuit sends an instruction to the power-assisted motor 3, the power-assisted motor 3 drives the first gear 1 to drive the second gear 2 to rotate according to the instruction, and then the ejector rod 10 is pushed to translate rightwards through the ball screw structure, so that the first piston 11 is pushed to build pressure for the power-assisted pressure building cylinder 4, the first working cavity 14 in the brake main cylinder 5 is built pressure through a pipeline, the second piston 12 is pushed to build pressure for the brake main cylinder 5, and line-controlled active braking is achieved. In the active braking mode, as soon as the electronic control unit 8 receives the displacement signal of the pedal stroke sensor 26, the system switches to the conventional electric power-assisted braking mode.
Fifthly, a failure backup function:
according to the relevant requirements, when the brake system fails or some brake components are in failure, the brake system still needs to ensure that a certain brake strength can be generated so as to ensure safety and reliability.
The utility model provides an electronic helping hand braking system of no feedback disk part decoupling zero breaks down at helping hand motor 3 or certain driving medium, makes the unable normal during operation of electronic helping hand subassembly. The driver can still push the pedal push rod 17 to directly act on the second piston 12 by stepping on the brake pedal to build pressure for the brake master cylinder 5, so that the brake system can still generate certain brake force to realize the failure backup function.
Claims (7)
1. An electric power-assisted brake system without partial decoupling of a feedback plate, which is characterized in that: the brake master cylinder comprises a first gear, a second gear, a power-assisted motor, a power-assisted pressure building cylinder, a brake master cylinder, a liquid storage tank, a hydraulic control unit and an electric control unit, wherein the power-assisted motor is connected with the first gear and drives the first gear to rotate, the first gear is meshed with the second gear and drives the second gear to synchronously rotate, a lead screw is screwed in the middle of the second gear, the lead screw is driven to move left and right in the rotation process of the second gear, the rear end of the lead screw is connected with a mandril, the mandril is connected with a first piston in the inner cavity of the power-assisted pressure building cylinder, the lead screw drives the mandril to move and drive the first piston to move in the inner cavity of the power-assisted pressure building cylinder, a second piston and a third piston are assembled in the inner cavity of the brake master cylinder, a first working cavity is formed between the second piston and the front end of the inner cavity of the brake master cylinder, the inner cavity of the power-, a third working cavity is formed between the third piston and the rear end of the inner cavity of the brake master cylinder, the liquid storage tank is communicated with the second working cavity and the third working cavity through pipelines, the hydraulic control unit is also communicated with the second working cavity and the third working cavity through pipelines, a pedal push rod is inserted at the front end of the brake master cylinder and can push the second piston to move, the hydraulic control unit and the power-assisted motor are both connected with the electric control unit, and the electric control unit controls the power-assisted motor and the hydraulic control unit to work.
2. An electric power assisted brake system without partial decoupling of feedback according to claim 1, characterized in that: the diameter of the second gear is larger than that of the first gear.
3. An electric power assisted brake system without partial decoupling of feedback according to claim 1, characterized in that: the ball is assembled at the position where the lead screw is in threaded connection with the second gear, and the bearing is assembled at the connection position of the lead screw and the ejector rod.
4. An electric power assisted brake system without partial decoupling of feedback according to claim 1, characterized in that: and a first return spring is assembled between the rear end of a first piston in the inner cavity of the power-assisted pressure building cylinder and the rear end of the inner cavity of the power-assisted pressure building cylinder.
5. An electric power assisted brake system without partial decoupling of feedback according to claim 1, characterized in that: the front end of the inner cavity of the brake main cylinder is provided with a sealing sleeve, the pedal push rod is inserted in the sealing sleeve and is in sliding contact with the sealing sleeve, a second return spring is assembled in a second working cavity in the inner cavity of the brake main cylinder, and a third return spring is assembled in a third working cavity in the inner cavity of the brake main cylinder.
6. An electric power assisted brake system without partial decoupling of feedback according to claim 1, characterized in that: the brake system is characterized in that a stop block is arranged on the pedal push rod, a fourth return spring is assembled between the stop block and the front end of the brake main cylinder, a pedal stroke sensor is connected onto the pedal push rod and is connected with the electronic control unit, and the pedal stroke sensor can transmit displacement data of the pedal push rod to the electronic control unit in real time.
7. An electric power assisted brake system without partial decoupling of feedback according to claim 1, characterized in that: the hydraulic control unit is connected with a brake wheel cylinder, the hydraulic control unit controls the work of the brake wheel cylinder, a hydraulic pressure sensor is connected on a connecting pipeline of the hydraulic control unit and the brake master cylinder, the hydraulic pressure sensor is connected with the electric control unit, and the hydraulic pressure sensor can transmit pressure data to the electric control unit in real time.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920695474.0U CN209870363U (en) | 2019-05-15 | 2019-05-15 | Electric power-assisted braking system without partial decoupling of feedback plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920695474.0U CN209870363U (en) | 2019-05-15 | 2019-05-15 | Electric power-assisted braking system without partial decoupling of feedback plate |
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| CN209870363U true CN209870363U (en) | 2019-12-31 |
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| CN201920695474.0U Active CN209870363U (en) | 2019-05-15 | 2019-05-15 | Electric power-assisted braking system without partial decoupling of feedback plate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110040120A (en) * | 2019-05-15 | 2019-07-23 | 吉林大学 | A kind of electric booster braking system of no reaction plate partly decoupled |
| CN114043968A (en) * | 2021-11-25 | 2022-02-15 | 盐城吉研智能科技有限公司 | Pressure building mechanism of electronic mechanical power-assisted brake system |
-
2019
- 2019-05-15 CN CN201920695474.0U patent/CN209870363U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110040120A (en) * | 2019-05-15 | 2019-07-23 | 吉林大学 | A kind of electric booster braking system of no reaction plate partly decoupled |
| CN114043968A (en) * | 2021-11-25 | 2022-02-15 | 盐城吉研智能科技有限公司 | Pressure building mechanism of electronic mechanical power-assisted brake system |
| CN114043968B (en) * | 2021-11-25 | 2023-10-10 | 盐城吉研智能科技有限公司 | Pressure building mechanism of electronic mechanical power-assisted braking system |
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