CN111016865A - Electronic control hydraulic brake power assisting system - Google Patents
Electronic control hydraulic brake power assisting system Download PDFInfo
- Publication number
- CN111016865A CN111016865A CN202010018236.3A CN202010018236A CN111016865A CN 111016865 A CN111016865 A CN 111016865A CN 202010018236 A CN202010018236 A CN 202010018236A CN 111016865 A CN111016865 A CN 111016865A
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- China
- Prior art keywords
- push rod
- cavity
- piston
- boosting
- main push
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
- B60T13/14—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid using accumulators or reservoirs fed by pumps
- B60T13/142—Systems with master cylinder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/66—Electrical control in fluid-pressure brake systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/66—Electrical control in fluid-pressure brake systems
- B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
- B60T13/686—Electrical control in fluid-pressure brake systems by electrically-controlled valves in hydraulic systems or parts thereof
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Systems And Boosters (AREA)
Abstract
The invention discloses an electronic control hydraulic brake power-assisted system which comprises a brake power-assisted hydraulic system and a brake power-assisted hydraulic cylinder body, wherein a first piston and a second piston are arranged in an inner cavity of the brake power-assisted hydraulic cylinder body, a power-assisted cavity partition plate is fixed in the inner cavity of the brake power-assisted hydraulic cylinder body and positioned between the first piston and a cylinder top of the brake power-assisted hydraulic cylinder body to form a power-assisted cavity, a power-assisted cavity push rod is fixed on the first piston to penetrate through the power-assisted cavity partition plate, a main push rod slide hole is concavely arranged at the end part of the power-assisted cavity push rod, a main push rod is inserted into the cylinder top of the brake power-assisted hydraulic cylinder body and is in sliding fit with the main push rod slide hole, a displacement sensor is arranged in the main push rod slide hole and can detect the relative displacement of the main push rod and the power-assisted cavity push rod, and the. The invention has simple structure, realizes the control of the piston by controlling the oil pressure in the power-assisted cavity, and is convenient and reliable.
Description
Technical Field
The invention relates to the field of automobile braking, in particular to an electronic control hydraulic brake power-assisted system.
Background
The realization of brake boosting or active braking in automatic driving on an electric automobile is one of the problems encountered in the current intelligent automobile development of the electric automobile, a vacuum boosting is generally used in a traditional internal combustion engine automobile brake system, a vacuum source needs to be provided on the electric automobile by the vacuum boosting, and the technical scheme and the equipment installation volume are relatively complex. In addition, a motor power assisting mechanism is developed, the motor power assisting mechanism is relatively simple, but the requirement on the motor power is high, and the control is complex.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problems to be solved by the invention are as follows: how to provide an electronic control hydraulic brake power-assisted system with simple structure and convenient and reliable control.
In order to solve the technical problems, the invention adopts the following technical scheme:
an electronic control hydraulic brake power-assisted system comprises a brake power-assisted hydraulic system and a brake power-assisted hydraulic cylinder body, wherein a second piston and a first piston are sequentially arranged in an inner cavity of the brake power-assisted hydraulic cylinder body from the cylinder bottom to the cylinder top, a second oil cavity is formed between the second piston and the cylinder bottom of the brake power-assisted hydraulic cylinder body, a first oil cavity is formed between the second piston and the first piston, an oil outlet pipe which is respectively communicated with the first oil cavity and the second oil cavity is arranged on the brake power-assisted hydraulic cylinder body, a power-assisted cavity partition plate is fixedly connected between the first piston and the cylinder top of the brake power-assisted hydraulic cylinder body in the inner cavity of the brake power-assisted hydraulic cylinder body, a power-assisted cavity is formed between the power-assisted cavity partition plate and the first piston, a power-assisted cavity push rod is fixedly connected to the side surface of the first piston which is positioned on one side surface of the power-assisted cavity, one end of the boosting cavity push rod, far away from the first piston, penetrates through the boosting cavity clapboard, the boosting cavity push rod can be in sliding sealing fit with the boosting cavity clapboard along the central line direction of the brake boosting hydraulic cylinder body, one end of the boosting cavity push rod, far away from the first piston, is arranged at a distance from the cylinder top of the brake boosting hydraulic cylinder body, a main push rod which is arranged along the same central line of the brake boosting hydraulic cylinder body is inserted into the cylinder top of the brake boosting hydraulic cylinder body, can be in sliding fit with the cylinder top of the brake boosting hydraulic cylinder body along the central line direction of the brake boosting hydraulic cylinder body, a main push rod sliding hole which extends along the central line direction of the boosting cavity push rod is concavely arranged on the end surface of the boosting cavity push rod, far away from the first piston, one end of the main push rod, extending into the brake boosting hydraulic cylinder body, is inserted into the main push rod sliding hole and can be in sliding fit with the main push rod sliding hole, a main push rod ring gear is arranged on the main push rod in a ring fit manner and is positioned in the brake boosting hydraulic cylinder body, a main push rod spring is sleeved on the main push rod and on a rod body positioned between the boosting cavity ring gear and the main push rod ring gear, two ends of the main push rod spring are respectively and fixedly connected to the boosting cavity ring gear and the main push rod ring gear, and when the main push rod moves towards the bottom direction of a main push rod sliding hole, the boosting cavity ring gear and the main push rod ring gear can compress the main push rod spring;
the brake boosting hydraulic system comprises an ECU (electronic control unit) control unit, a displacement sensor, a boosting high-speed switch valve, a pressure-reducing high-speed switch valve, an oil storage tank and a hydraulic pump, wherein the displacement sensor is positioned in a main push rod sliding hole to detect the relative displacement between a main push rod and a boosting cavity push rod, the signal input end of the ECU control unit is electrically connected with the signal input end of the displacement sensor, the signal output end of the ECU control unit is electrically connected with the control signal input ends of the boosting high-speed switch valve and the pressure-reducing high-speed switch valve respectively, the input end of the hydraulic pump is communicated with the oil storage tank, the output end of the hydraulic pump is communicated with the input end of the boosting high-speed switch valve, the output end of the boosting high-speed switch valve is communicated.
When braking is needed, when the main push rod is stressed to move towards the direction of the inner cavity of the brake power-assisted hydraulic cylinder body, the main push rod spring starts to compress, the displacement sensor detects the relative displacement between the main push rod and the push rod of the power-assisted cavity, a signal is transmitted to the ECU control unit, the ECU control unit controls the pressurization high-speed switch valve to be opened, the decompression high-speed switch valve is closed, the hydraulic pump pumps oil into the power-assisted cavity, the oil pressure in the power-assisted cavity is increased, and then the first piston and the second piston are driven to move towards the direction of the cylinder bottom of the brake power-assisted hydraulic cylinder body, so that the first piston and the second piston respectively extrude the oil in the first oil cavity and the second oil cavity into the brake power-. After braking is completed, the main push rod springs back to enable the main push rod to reset, the corresponding displacement sensor detects displacement change between the main push rod and the boosting cavity push rod, signals are transmitted to the ECU control unit, the ECU control unit controls the pressurization high-speed switch valve to be closed, the decompression high-speed switch valve is opened, oil pressure in the boosting cavity is reduced, oil of the wheel braking system returns to the first oil cavity and the second oil cavity, the first piston and the second piston are driven to move towards the cylinder top direction of the braking boosting hydraulic cylinder body, and then the oil in the boosting cavity returns to the oil storage tank.
Preferably, a high-pressure accumulator is arranged on a connecting pipeline between the hydraulic pump and the supercharging high-speed switch valve and communicated with the connecting pipeline. The start and stop of the hydraulic pump can cause certain delay to the operation of the whole oil way, and the delay is reduced and the response time of the system is prolonged by releasing oil in the high-pressure energy accumulator.
As optimization, a mounting plane parallel to the central line of the main push rod is arranged on the rod body of the main push rod and positioned at one end of the main push rod inserted into the sliding hole of the main push rod, the section of the main push rod corresponding to the position of the mounting plane is in a major arc shape, and the displacement sensor is mounted on the mounting plane. The processing is convenient, and the installation of the displacement sensor is also convenient.
Preferably, a first return spring is arranged in the first oil chamber, two ends of the first return spring are respectively abutted against the first piston and the second piston, a second return spring is arranged in the second oil chamber, two ends of the second return spring are respectively abutted against the cylinder bottom of the brake power-assisted hydraulic cylinder body and the second piston, and the first return spring and the second return spring can respectively provide spring force for the first piston and the second piston to return to the initial state. The first return spring and the second return spring are added, so that oil in the boosting cavity can return to the oil storage tank better, and the response time of braking of the wheel is prolonged.
In conclusion, the beneficial effects of the invention are as follows: the invention has simple structure, only adds the boosting cavity on the original braking boosting hydraulic cylinder body, realizes the control of the piston through the high pressure generated by the hydraulic pump, and is convenient and reliable.
Drawings
For purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made in detail to the present invention as illustrated in the accompanying drawings, in which:
fig. 1 is a hydraulic schematic of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the electronically-controlled hydraulic brake-assist system in the present embodiment includes a brake-assist hydraulic system and a brake-assist hydraulic cylinder 1, a second piston 2 and a first piston 3 are sequentially disposed in an inner cavity of the brake-assist hydraulic cylinder 1 from a cylinder bottom to a cylinder top, a second oil cavity is formed between the second piston 2 and the cylinder bottom of the brake-assist hydraulic cylinder 1, a first oil cavity is formed between the second piston 2 and the first piston 3, an oil outlet pipe is mounted on the brake-assist hydraulic cylinder 1 and is respectively communicated with the first oil cavity and the second oil cavity, a booster cavity partition plate 4 is fixedly connected in the inner cavity of the brake-assist hydraulic cylinder 1 and is located between the first piston 3 and the cylinder top of the brake-assist hydraulic cylinder 1, a booster cavity is formed between the booster cavity partition plate 4 and the first piston 3, a booster cavity push rod 5 is fixedly connected to the first piston 3 and is located on a side surface of the booster cavity, the boosting cavity push rod 5 and the brake boosting hydraulic cylinder body 1 are arranged on the same central line, one end of the boosting cavity push rod 5, far away from the first piston 3, penetrates through the boosting cavity partition plate 4, the boosting cavity push rod 5 can be in sliding seal fit with the boosting cavity partition plate 4 along the central line direction of the brake boosting hydraulic cylinder body 1, one end of the boosting cavity push rod 5, far away from the first piston 3, is arranged at a distance from the cylinder top of the brake boosting hydraulic cylinder body 1, a main push rod 6, which is arranged on the same central line with the brake boosting hydraulic cylinder body 1, is inserted into the cylinder top of the brake boosting hydraulic cylinder body 1 along the central line direction, a main push rod sliding hole, which extends along the central line direction of the boosting cavity push rod 5, is concavely arranged on the end surface of one end, far away from the first piston 3, of the boosting cavity push rod 5, one end, extending into the brake boosting hydraulic cylinder body 1, is inserted into the main sliding hole and can be in sliding fit with the, a booster cavity ring baffle 7 is annularly arranged on a rod body of the booster cavity push rod 5 penetrating through the booster cavity partition plate 4, a main push rod ring baffle 8 is annularly arranged on a rod body of the main push rod 6 and positioned in the brake booster hydraulic cylinder body 1, a main push rod spring 9 is sleeved on the rod body of the main push rod 6 and positioned between the booster cavity ring baffle 7 and the main push rod ring baffle 8, two ends of the main push rod spring 9 are respectively and fixedly connected to the booster cavity ring baffle 7 and the main push rod ring baffle 8, and when the main push rod 6 moves towards the bottom direction of a main push rod sliding hole, the booster cavity ring baffle 7 and the main push rod ring baffle 8 can compress the main push rod spring 9;
the brake boosting hydraulic system comprises an ECU control unit 10, a displacement sensor and a boosting high-speed switch valve 11, decompression high-speed ooff valve 12, oil storage tank 13 and hydraulic pump 14, displacement sensor is located the main push rod slide opening in order to detect the relative displacement between main push rod 6 and helping hand chamber push rod 5, ECU control unit 10's signal input part is connected with displacement sensor's signal input part electricity, ECU control unit 10's signal output part is connected with the control signal input part electricity of pressure boost high-speed ooff valve 11 and decompression high-speed ooff valve 12 respectively, hydraulic pump 14's input and oil storage tank 13 intercommunication, hydraulic pump 14's output and the input intercommunication of pressure boost high-speed ooff valve 11, the output and the helping hand chamber intercommunication of pressure boost high-speed ooff valve 11, the input and the helping hand chamber intercommunication of decompression high-speed ooff valve 12, the output and the oil storage tank 13 intercommunication of.
In this embodiment, a high-pressure accumulator 15 is disposed on a connection pipeline between the hydraulic pump 14 and the supercharging high-speed switch valve 11 to communicate with the connection pipeline.
In this specific embodiment, the main push rod 6 and the rod body at the end thereof inserted into the main push rod sliding hole are provided with a mounting plane parallel to the center line of the main push rod 6, the cross section of the main push rod 6 corresponding to the position of the mounting plane is in a major arc shape, and the displacement sensor is mounted on the mounting plane.
In this embodiment, a first return spring 16 is disposed in the first oil chamber, two ends of the first return spring 16 abut against the first piston 3 and the second piston 2, respectively, a second return spring 17 is disposed in the second oil chamber, two ends of the second return spring 17 abut against the bottom of the brake-assist hydraulic cylinder 1 and the second piston 2, respectively, and the first return spring 16 and the second return spring 17 can provide spring force for the first piston 3 and the second piston 2 to return to the initial state, respectively.
In the specific implementation process, the ECU control unit can respectively control the flow through the pressurization high-speed switch valve and the decompression high-speed switch valve according to the relative displacement between the main push rod and the boosting cavity push rod, so as to control the pressure of oil in the boosting cavity and realize the control of the braking force.
Finally, it is noted that the above-mentioned embodiments illustrate rather than limit the invention, and that, while the invention has been described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. An electronic control hydraulic brake boosting system is characterized in that: the brake booster hydraulic cylinder comprises a brake booster hydraulic system and a brake booster hydraulic cylinder body, wherein a second piston and a first piston are sequentially arranged in an inner cavity of the brake booster hydraulic cylinder body from the cylinder bottom to the cylinder top, a second oil cavity is formed between the second piston and the cylinder bottom of the brake booster hydraulic cylinder body, a first oil cavity is formed between the second piston and the first piston, an oil outlet pipe which is respectively communicated with the first oil cavity and the second oil cavity is arranged on the brake booster hydraulic cylinder body, a booster cavity clapboard is fixedly connected between the first piston and the cylinder top of the brake booster hydraulic cylinder body in the inner cavity of the brake booster hydraulic cylinder body, a booster cavity is formed between the booster cavity clapboard and the first piston, a booster cavity push rod is fixedly connected on one side surface of the booster cavity of the first piston, the booster cavity push rod and the brake booster hydraulic cylinder body are arranged on the same center line, one end of the booster cavity push rod, which is far away from the first piston, penetrates through the booster cavity clapboard, the boosting cavity push rod can be in sliding sealing fit with the boosting cavity partition plate along the central line direction of the brake boosting hydraulic cylinder body, one end of the boosting cavity push rod, far away from the first piston, is arranged at a distance from the cylinder top of the brake boosting hydraulic cylinder body, a main push rod which is arranged along the same central line with the first piston is inserted into the cylinder top of the brake boosting hydraulic cylinder body, the main push rod can be in sliding fit with the cylinder top of the brake boosting hydraulic cylinder body along the central line direction of the brake boosting hydraulic cylinder body, a main push rod sliding hole which extends along the central line direction of the boosting cavity push rod is concavely arranged on the end surface of one end of the boosting cavity push rod, far away from the first piston, one end of the main push rod, extending into the brake boosting hydraulic cylinder body, is inserted into the main push rod sliding hole and can be in sliding fit with the main push rod sliding hole along the central line direction of the main push rod sliding hole, a boosting cavity ring stop is annularly, a main push rod spring is sleeved on a rod body which is positioned on the main push rod and between the power assisting cavity ring baffle and the main push rod ring baffle, two ends of the main push rod spring are respectively and fixedly connected to the power assisting cavity ring baffle and the main push rod ring baffle, and when the main push rod moves towards the bottom direction of a main push rod sliding hole, the power assisting cavity ring baffle and the main push rod ring baffle can compress the main push rod spring;
the brake boosting hydraulic system comprises an ECU (electronic control unit) control unit, a displacement sensor, a boosting high-speed switch valve, a pressure-reducing high-speed switch valve, an oil storage tank and a hydraulic pump, wherein the displacement sensor is positioned in a main push rod sliding hole to detect the relative displacement between a main push rod and a boosting cavity push rod, the signal input end of the ECU control unit is electrically connected with the signal input end of the displacement sensor, the signal output end of the ECU control unit is electrically connected with the control signal input ends of the boosting high-speed switch valve and the pressure-reducing high-speed switch valve respectively, the input end of the hydraulic pump is communicated with the oil storage tank, the output end of the hydraulic pump is communicated with the input end of the boosting high-speed switch valve, the output end of the boosting high-speed switch valve is communicated.
2. The electronically controlled hydraulic brake assist system of claim 1, wherein: and a high-pressure accumulator is arranged on a connecting pipeline between the hydraulic pump and the supercharging high-speed switch valve and communicated with the connecting pipeline.
3. The electronically controlled hydraulic brake assist system of claim 1, wherein: the main push rod is arranged at one end of the rod body, which is inserted into the main push rod sliding hole, a mounting plane is arranged on the rod body and parallel to the central line of the main push rod, the main push rod is in a major arc shape corresponding to the cross section of the position of the mounting plane, and the displacement sensor is mounted on the mounting plane.
4. The electronically controlled hydraulic brake assist system of claim 1, wherein: the brake boosting hydraulic cylinder is characterized in that a first return spring is arranged in the first oil cavity, two ends of the first return spring are abutted to the first piston and the second piston respectively, a second return spring is arranged in the second oil cavity, two ends of the second return spring are abutted to the cylinder bottom of the brake boosting hydraulic cylinder body and the second piston respectively, and the first return spring and the second return spring can provide spring force for the first piston and the second piston to restore to an initial state respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010018236.3A CN111016865A (en) | 2020-01-08 | 2020-01-08 | Electronic control hydraulic brake power assisting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010018236.3A CN111016865A (en) | 2020-01-08 | 2020-01-08 | Electronic control hydraulic brake power assisting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111016865A true CN111016865A (en) | 2020-04-17 |
Family
ID=70202442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010018236.3A Pending CN111016865A (en) | 2020-01-08 | 2020-01-08 | Electronic control hydraulic brake power assisting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111016865A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030030321A1 (en) * | 2001-07-13 | 2003-02-13 | Akihito Kusano | Hydraulic braking pressure generating apparatus for a vehicle and a hydraulic brake device for a vehicle including a hydraulic braking pressure generating apparatus |
| CN101263033A (en) * | 2005-09-15 | 2008-09-10 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Motor vehicle braking system |
| CN103153734A (en) * | 2011-04-05 | 2013-06-12 | 株式会社爱德克斯 | Hydraulic booster and hydraulic brake device employing same |
| CN105346532A (en) * | 2015-10-26 | 2016-02-24 | 浙江万安科技股份有限公司 | Hydraulic servo boosting system |
| CN105584471A (en) * | 2016-01-28 | 2016-05-18 | 中国第一汽车股份有限公司 | Braking operating mechanism used for electric vehicle and integrating power assisting function |
| CN105752065A (en) * | 2016-02-23 | 2016-07-13 | 中国第汽车股份有限公司 | Brake control mechanism which has electronic-hydraulic assistance function and is used for electric vehicle |
| CN107709109A (en) * | 2015-09-01 | 2018-02-16 | 日立汽车系统株式会社 | Brake apparatus and brakes |
| CN107738638A (en) * | 2017-09-18 | 2018-02-27 | 江苏大学 | A kind of composite braking system with brake-by-wire function |
| CN110171407A (en) * | 2019-07-01 | 2019-08-27 | 广州中博制动系统有限公司 | A kind of hydraulic booster assembly apparatus with precharge function |
| CN110576842A (en) * | 2019-09-02 | 2019-12-17 | 上海联芊电子科技有限公司 | brake booster unit, braking system and vehicle |
-
2020
- 2020-01-08 CN CN202010018236.3A patent/CN111016865A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030030321A1 (en) * | 2001-07-13 | 2003-02-13 | Akihito Kusano | Hydraulic braking pressure generating apparatus for a vehicle and a hydraulic brake device for a vehicle including a hydraulic braking pressure generating apparatus |
| CN101263033A (en) * | 2005-09-15 | 2008-09-10 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Motor vehicle braking system |
| CN103153734A (en) * | 2011-04-05 | 2013-06-12 | 株式会社爱德克斯 | Hydraulic booster and hydraulic brake device employing same |
| CN107709109A (en) * | 2015-09-01 | 2018-02-16 | 日立汽车系统株式会社 | Brake apparatus and brakes |
| CN105346532A (en) * | 2015-10-26 | 2016-02-24 | 浙江万安科技股份有限公司 | Hydraulic servo boosting system |
| CN105584471A (en) * | 2016-01-28 | 2016-05-18 | 中国第一汽车股份有限公司 | Braking operating mechanism used for electric vehicle and integrating power assisting function |
| CN105752065A (en) * | 2016-02-23 | 2016-07-13 | 中国第汽车股份有限公司 | Brake control mechanism which has electronic-hydraulic assistance function and is used for electric vehicle |
| CN107738638A (en) * | 2017-09-18 | 2018-02-27 | 江苏大学 | A kind of composite braking system with brake-by-wire function |
| CN110171407A (en) * | 2019-07-01 | 2019-08-27 | 广州中博制动系统有限公司 | A kind of hydraulic booster assembly apparatus with precharge function |
| CN110576842A (en) * | 2019-09-02 | 2019-12-17 | 上海联芊电子科技有限公司 | brake booster unit, braking system and vehicle |
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Application publication date: 20200417 |
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| RJ01 | Rejection of invention patent application after publication |