CN114347970B - Redundant power-assisted braking device of automobile - Google Patents
Redundant power-assisted braking device of automobile Download PDFInfo
- Publication number
- CN114347970B CN114347970B CN202210075736.XA CN202210075736A CN114347970B CN 114347970 B CN114347970 B CN 114347970B CN 202210075736 A CN202210075736 A CN 202210075736A CN 114347970 B CN114347970 B CN 114347970B
- Authority
- CN
- China
- Prior art keywords
- brake
- vacuum
- unit
- assembly
- booster
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 5
- 230000000875 corresponding effect Effects 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 claims 1
- 238000005086 pumping Methods 0.000 abstract description 2
- 238000004891 communication Methods 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- OVSKGTONMLKNPZ-UHFFFAOYSA-N 3-(1-methylindol-3-yl)-4-(1-methyl-6-nitroindol-3-yl)pyrrole-2,5-dione Chemical compound C12=CC=CC=C2N(C)C=C1C1=C(C=2C3=CC=C(C=C3N(C)C=2)[N+]([O-])=O)C(=O)NC1=O OVSKGTONMLKNPZ-UHFFFAOYSA-N 0.000 description 1
- 101150044367 MKC1 gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
Landscapes
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention discloses a redundant power-assisted braking device of an automobile, which comprises a braking vacuum unit and an electric power-assisted unit, wherein the braking vacuum unit and the electric power-assisted unit are connected with a push rod of a braking main cylinder, respectively generate braking power during braking, are in a serial structure and are redundant; setting a vacuum degree pressure sensor assembly, and inputting a detected vacuum degree signal into a control unit assembly; the vacuum pump assembly is used for pumping gas in the brake vacuum power-assisted unit, the electric power-assisted unit is provided with a plurality of sensors, and detected signals are input into the control unit assembly; the output end of the control unit assembly is electrically connected with the vacuum pump assembly and the electromagnetic valve respectively. According to the redundant power-assisted braking device, the braking vacuum and electric power-assisted units are of a serial structure and are redundant; the brake booster has the advantages that the brake booster can effectively prevent the failure of the booster system during braking, and can ensure that the normal work of the brake booster can be ensured by the intervention of the other booster after the failure of one of the boosting of the vehicle, so that the driving safety is greatly improved.
Description
Technical Field
The invention relates to a brake booster assembly in a vehicle brake system, in particular to a redundant booster brake device of an automobile.
Background
The brake booster of the automobile is a device for providing assistance for the braking system of the automobile to provide assistance for a brake pedal, so that the braking is lighter and more flexible. At present, the conventional Booster forms comprise a vacuum Booster (Booster), an electric Booster (E-Booster, IPB (bosch), MKC1 (continental), and the like), and the electric Booster is applied to the whole vehicle project more and more widely due to higher integration level along with the development of technology. Regulations for vehicle safety require that in case of failure of the assistance, the full force braking should meet certain deceleration requirements. After the failure of the electric booster, the auxiliary function (HBB) of the ESP can support the vehicle to realize emergency stop, but cannot support the continuous long-term use, and the vehicle must wait for rescue, which obviously brings about a lot of inconveniences.
In the prior art, in order to increase driving safety, a redundant power-assisted structure is adopted, as disclosed in the patent application of a redundant vacuum power-assisted system for electric vehicle braking based on double electric vacuum pumps, disclosed in publication No. CN110466490A, the redundant vacuum power-assisted system consists of a two-position three-way electromagnetic valve, a one-way valve, an electronic control unit, a vacuum tank, a vacuum degree pressure sensor assembly, a vacuum booster, a storage battery, two electric vacuum pumps, two relays and other parts; the connection between the components is divided into gas circuit connection and circuit connection; when the electronic control unit judges that the first electric vacuum pump fails through the vacuum value of the vacuum tank output by the vacuum pressure sensor assembly and the working time of the electric vacuum pump, the electronic control unit controls the two-position three-way electromagnetic valve to enable the second electric vacuum pump to work, so that the working reliability of the vacuum power assisting system of the electric vehicle is improved, and the braking safety of the electric vehicle, particularly the braking efficiency in emergency braking, can be effectively improved; the double-vacuum pump redundancy scheme based on the vacuum booster has a certain improvement on driving safety, but has no good effect on the problem of driving safety of the vehicle after the failure of electric boosting.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a redundant power-assisted braking device of an automobile with combined vacuum power assistance and electric power assistance, which can ensure that after one of the power assistance fails, the other power assistance intervention can still ensure the normal work of the power assistance of the brake booster, and greatly improve the driving safety.
The technical scheme of the invention is realized as follows:
the utility model provides a redundant helping hand arresting gear of car, includes the brake master cylinder push rod of car, its characterized in that:
The brake vacuum booster unit or the brake electric booster unit respectively generates brake booster during braking, and the brake vacuum booster unit and the brake electric booster unit are in a serial structure and are redundant;
When the vehicle is in a running state, if the set main execution unit is a brake vacuum power-assisted unit, and braking is needed, a driver presses a brake master cylinder push rod, and at the moment, the electromagnetic valve assembly is in a closed state; when the vacuum degree pressure sensor assembly detects that the vacuum degree value of the brake vacuum power assisting unit is higher than a set first calibration value, the control unit assembly sends out a command to control the vacuum pump assembly to work, and vacuum is extracted; the electromagnetic valve assembly is continuously in a closed state, the working duration of the vacuum pump assembly exceeds a set value, the vacuum degree of the brake vacuum power assisting unit does not reach a set second calibration value, the brake vacuum power assisting unit is judged to be faulty, at the moment, the control unit assembly sends a control signal to control the electromagnetic valve assembly to be opened, and the vacuum power assisting mode is switched into an electric power assisting mode;
A vacuum pressure sensor assembly is arranged to detect a vacuum signal of the brake vacuum assist unit and to detect the vacuum signal of the brake vacuum assist unit
Inputting signals into the control unit assembly; the vacuum pump assembly is connected with the brake vacuum booster unit through a pipeline and is used for extracting gas in the brake vacuum booster unit to reach the vacuum degree required by brake booster; the brake electric power assisting unit is provided with a plurality of sensors, and detected signals are input into the control unit assembly;
The output end of the control unit assembly is respectively and electrically connected with the vacuum pump assembly and the electromagnetic valve, and respectively outputs control
The signal is sent to the vacuum pump assembly and the electromagnetic valve assembly to control the vacuum pump assembly and the electromagnetic valve assembly to generate corresponding actions; the electromagnetic valve assembly is connected with the brake vacuum power-assisted unit through a pipeline, and is communicated with the atmosphere when the electromagnetic valve assembly is in an open state.
According to the redundant booster braking device, the braking vacuum booster unit or the braking electric booster unit respectively generate braking boosting during braking, and the braking vacuum booster unit and the braking electric booster unit are in a serial structure and are redundant; the brake booster has the advantages that the brake booster can effectively prevent the failure of the booster system during braking, and can ensure that the normal work of the brake booster can be ensured by the intervention of the other booster after the failure of one of the boosting of the vehicle, so that the driving safety is greatly improved.
Further: and a one-way valve is arranged on the pipeline of the vacuum pump assembly and the brake vacuum booster unit. The check valve can ensure the single-phase flow of the gas and prevent the unexpected failure of the braking system.
Further: and a one-way valve is arranged on the pipeline of the electromagnetic valve assembly and the brake vacuum booster unit. The check valve can ensure the single-phase flow of the gas and prevent the unexpected failure of the braking system.
Further: the vacuum degree pressure sensor assembly is arranged inside the brake vacuum booster unit or externally connected with the brake vacuum booster unit
On the pipeline. Thus, the vacuum pressure sensor can be conveniently arranged or installed, and the pipeline is convenient to simplify.
Further: during driving, one of the brake vacuum assistance unit and the brake electric assistance unit is automatically or manually selected as a main execution unit, and the other is used as a standby redundant assistance. Therefore, a driver can conveniently select the braking system according to the driving habit, and the redundant power-assisted braking system can prevent the braking system from unexpected failure.
Further: when the vehicle is in a running state, if the set main execution unit is a brake vacuum power-assisted unit, and braking is needed, a driver presses a brake master cylinder push rod, and the electromagnetic valve is in a closed state at the moment; when the vacuum degree pressure sensor assembly detects that the vacuum degree value of the brake vacuum power assisting unit is higher than a set first calibration value, the control unit assembly sends out a command to control the vacuum pump assembly to work, and vacuum is extracted; the electromagnetic valve is continuously in a closed state, the working duration of the vacuum pump assembly exceeds a set value, the vacuum degree of the brake vacuum power assisting unit does not reach a set second calibration value, the brake vacuum power assisting unit is judged to be faulty, at the moment, the control unit sends out a control signal to control the electromagnetic valve to be opened, and the vacuum power assisting mode is switched into an electric power assisting mode. Therefore, the main execution unit is a braking vacuum power-assisted unit, and if a fault exists, the system timely switches the vacuum power-assisted mode into the electric power-assisted mode, so that driving safety is ensured.
Further: the control unit assembly records the fault code. Thus facilitating later maintenance and searching
A fault source.
Further: in the working set time of the vacuum pump assembly, the vacuum degree pressure sensor assembly detects
When the vacuum degree level in the brake vacuum booster unit reaches a second calibration value, the control unit assembly sends out a control signal to stop the vacuum pump assembly, and the brake vacuum booster unit provides booster in the process of stepping down the push rod of the brake master cylinder.
Further: when the vehicle is in a running state, if the set main execution unit is a braking electric power unit, the electromagnetic valve is in an opening state; if the control unit assembly detects that the fault with the effect of assisting the brake electric assisting unit is generated, the system is switched to a vacuum assisting mode, the electromagnetic valve is closed, and the brake assisting is realized according to the flow of the vacuum assisting system. Therefore, the main execution unit is the braking electric power assisting unit, and if faults exist, the system timely switches the electric power assisting mode into the vacuum power assisting mode, so that driving safety is guaranteed.
Further: the control unit assembly will register the system failure. Thus facilitating later maintenance and searching
A fault source.
In summary, the invention has the following beneficial effects: the invention combines vacuum assistance and electric assistance, which are redundant assistance, so that after one assistance fails, the other assistance is interposed in time to ensure that the brake booster can work normally, and the driving safety is greatly improved.
Drawings
FIG. 1 is a schematic diagram of a redundant brake boosting scheme system of the present invention;
FIG. 2 is a control flow diagram of a redundant brake boosting scheme of the present invention.
Wherein, 101-a brake master cylinder push rod, 102-a brake vacuum power assisting unit, 103-a brake electric power assisting unit, 104-a vacuum degree pressure sensor assembly, 105-a control unit assembly, 106-a vacuum pump assembly, 107-a solenoid valve assembly and 108-a check valve.
Detailed Description
Specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Referring to fig. 1-2, the redundant booster brake device of the present invention includes a master cylinder push rod 101 of an automobile, where the master cylinder push rod 101 includes automobile brake components such as a brake pedal, and when the brake pedal is depressed during braking, a braking force is generated and acts on a braking portion of a tire of the automobile. The invention is provided with a brake vacuum power-assisted unit 102 and a brake electric power-assisted unit 103, which are both connected with a brake master cylinder push rod 101, wherein when a brake pedal is pressed to brake a vehicle during braking, the brake vacuum power-assisted unit 102 or the brake electric power-assisted unit 103 respectively generate brake power assistance, and the brake vacuum power-assisted unit 102 and the brake electric power-assisted unit 103 are in a serial structure and are redundant; during driving, one of the brake vacuum assist unit 102 and the brake electric assist unit 103 is automatically or manually selected as a main execution unit, and the other is used as a standby redundant assist, and the two assist modes select one of the two assist modes as the main execution unit according to the own requirements of a driver.
The control unit assembly 105 is a control unit of the whole device, supports diagnosis, detection, communication and control of a system, is responsible for communication with the whole vehicle, and receives and transmits signals. The vacuum degree pressure sensor assembly 104 is arranged to detect a vacuum degree signal of the brake vacuum booster unit 102, and inputs the signal into the control unit assembly 105, and the vacuum degree pressure sensor assembly 104 is arranged in the brake vacuum booster unit 102 or on an external pipe to detect the vacuum degree signal of the brake vacuum booster unit 102; the vacuum pump assembly 106 is connected with the brake vacuum booster unit 102 through a pipeline and is used for pumping gas in the brake vacuum booster unit 102 to achieve the vacuum degree required by brake booster; a check valve 108 is provided on a line connecting the vacuum pump assembly 106 with the brake vacuum assist unit 102 to ensure single flow of gas in the line. The electromagnetic valve assembly 107 is connected with the brake vacuum booster unit 102 through a pipeline, and when the electromagnetic valve assembly 107 is in an open state, the electromagnetic valve assembly is communicated with the atmosphere, and at the moment, the brake vacuum booster unit 102 cannot work without reaching the required vacuum degree. A check valve 108 is also provided on the line between the solenoid valve assembly 107 and the brake vacuum assist unit 102 to ensure unidirectional flow of gas in the line.
The brake electric power assisting unit 103 is provided with a plurality of sensors, and detected signals are input into the control unit assembly 105, such as a master cylinder pressure signal, a pedal push rod stroke signal, a voltage signal, whether a fault exists or not and the like; the output end of the control unit assembly 105 is respectively electrically connected with the vacuum pump assembly 106 and the electromagnetic valve assembly 107, and the control signals are respectively output to the vacuum pump assembly 106 and the electromagnetic valve assembly 107 to control the corresponding actions through calculating and judging the input signals.
The working principle and the process of the invention are as follows:
With reference to the flowchart of fig. 2, when the vehicle is in a running state, assuming that the set main execution unit is the brake vacuum booster unit 102, and when braking is needed, the driver steps on the brake master cylinder push rod 101, and the electromagnetic valve assembly 107 is in a closed state, and when the vacuum degree pressure sensor assembly 104 detects that the vacuum degree value (the vacuum degree value is negative) of the brake vacuum booster unit 102 is higher than the set first calibration value, the control unit assembly 105 sends out a command to control the vacuum pump assembly 106 to work and vacuum is extracted; the electromagnetic valve assembly 107 is kept in a closed state, the working duration of the vacuum pump assembly 106 exceeds a set value, the vacuum degree of the brake vacuum assisting unit 102 does not reach a set second calibration value, the brake vacuum assisting unit 102 is judged to be faulty, at the moment, the control unit assembly 105 sends a control signal to control the electromagnetic valve assembly 107 to be opened, the brake vacuum assisting unit 102 can exhaust gas to the atmosphere through a pipeline, compressed air does work in the process of generating electric assistance by the brake electric assisting unit 103 is avoided, unexpected load is generated on the electric assistance, and the vacuum assisting mode is switched to the electric assisting mode; meanwhile, the control unit assembly 105 records fault codes, and corresponding HMI prompts (the fault information is displayed on a display instrument) when the system is switched, so that a user can reasonably arrange a route and overhaul in time after knowing the running state of the vehicle in time. When the vacuum degree pressure sensor assembly 104 detects that the vacuum degree level in the brake vacuum booster unit 102 reaches a second calibration value within the set operation time of the vacuum pump assembly 106, the control unit assembly 105 sends a control signal to enable the vacuum pump assembly 106 to stop immediately, and the booster is provided by the brake vacuum booster unit 102 in the process of stepping down the master cylinder push rod 101. The vacuum power assisting system is provided with a vacuum storage unit, so that the high-frequency operation of the vacuum pump assembly 106 is avoided, and the damage of parts is avoided.
When the vehicle is in a running state, if the set main execution unit is the brake electric power assisting unit 103, the electromagnetic valve assembly 107 is in an opening state, and the brake vacuum power assisting unit 102 can exhaust gas to the atmosphere through a pipeline, so that the vacuum power assisting system does not work or influence the work of the electric power assisting unit. If the control unit assembly 105 detects that the fault which affects the power assistance in the brake electric power assisting unit 103 is generated, the electromagnetic valve assembly 107 is closed, the system is switched to a vacuum power assisting mode, the brake power assistance is realized according to the flow of the vacuum power assisting system, the control unit assembly 105 simultaneously records the system fault, and an HMI prompt is provided when the power assisting mode is switched, so that a user can reasonably arrange the travel and overhaul after knowing the running state of the vehicle in time. If the brake electric booster 103 is not defective, the brake electric booster 103 will provide boost after the master cylinder push rod 101 is depressed.
Finally, it should be noted that the above examples of the present invention are merely illustrative of the present invention and are not limiting of the embodiments of the present invention. While the invention has been described in detail with reference to the preferred embodiments, it will be apparent to one skilled in the art that various other changes and modifications can be made therein. Not all embodiments are exhaustive. Obvious changes and modifications which are extended by the technical proposal of the invention are still within the protection scope of the invention.
Claims (9)
1. The utility model provides a redundant helping hand arresting gear of car, includes brake master cylinder push rod (101) of car, its characterized in that: the brake system further comprises a brake vacuum power assisting unit (102) and a brake electric power assisting unit (103), wherein the brake vacuum power assisting unit (102) and the brake electric power assisting unit (103) are connected with the brake master cylinder push rod (101), and the brake vacuum power assisting unit (102) or the brake electric power assisting unit (103) respectively generate brake power during braking, are in a serial structure and are redundant; when the vehicle is in a running state, if the set main execution unit is a brake vacuum power assisting unit (102), and when braking is needed, a driver presses a brake master cylinder push rod (101), and at the moment, the electromagnetic valve assembly (107) is in a closed state; when the vacuum degree pressure sensor assembly (104) detects that the vacuum degree value of the brake vacuum power assisting unit (102) is higher than a set first calibration value, the control unit assembly (105) sends out a command to control the vacuum pump assembly (106) to work, and vacuum is extracted; the electromagnetic valve assembly (107) is continuously in a closed state, the working duration of the vacuum pump assembly (106) exceeds a set value, the vacuum degree of the brake vacuum assisting unit (102) does not reach a set second standard value, the brake vacuum assisting unit (102) is judged to be faulty, at the moment, the control unit assembly (105) sends a control signal to control the electromagnetic valve assembly (107) to be opened, and the vacuum assisting mode is switched to the electric assisting mode;
A vacuum degree pressure sensor assembly (104) is arranged to detect a vacuum degree signal of the brake vacuum booster unit (102) and input the signal into a control unit assembly (105); the vacuum pump assembly (106) is connected with the brake vacuum booster unit (102) through a pipeline and is used for extracting gas in the brake vacuum booster unit (102) to achieve the vacuum degree of the brake booster requirement; the brake electric power assisting unit (103) is provided with a plurality of sensors, and detected signals are input into the control unit assembly (105);
The output end of the control unit assembly (105) is respectively connected with the vacuum pump assembly (106) and the electromagnetic valve assembly (107)
The electric connection is used for respectively outputting control signals to the vacuum pump assembly (106) and the electromagnetic valve assembly (107) and controlling the vacuum pump assembly and the electromagnetic valve assembly to generate corresponding actions; the electromagnetic valve assembly (107) is connected with the brake vacuum assisting unit (102) through a pipeline, and is communicated with the atmosphere when the electromagnetic valve assembly (107) is in an open state.
2. The redundant booster brake of an automobile of claim 1, wherein: at the position of
And a one-way valve is arranged on the pipeline of the vacuum pump assembly (106) and the brake vacuum booster unit (102).
3. The redundant booster brake of an automobile of claim 1, wherein: electric power
And a one-way valve is arranged on the pipeline of the magnetic valve assembly (107) and the brake vacuum booster unit (102).
4. A redundant booster brake for an automobile as defined in claim 3, wherein: the vacuum degree pressure sensor assembly (104) is arranged inside the braking vacuum power assisting unit (102) or on an external connecting pipe.
5. A redundant booster brake for a motor vehicle according to any one of claims 1-4, wherein
The method comprises the following steps: during driving, one of the brake vacuum booster unit (102) and the brake electric booster unit (103) is automatically or manually selected as a main execution unit, and the other is used as a standby redundant booster.
6. A redundant booster brake for a motor vehicle according to any one of claims 1-4, wherein
The method comprises the following steps: the control unit assembly (105) records a fault code.
7. A redundant booster brake for an automobile according to any one of claims 1-4, wherein: and when the vacuum degree pressure sensor assembly (104) detects that the vacuum degree level in the brake vacuum assisting unit (102) reaches a second standard value in the working set time of the vacuum pump assembly (106), the control unit assembly (105) sends out a control signal to stop the working of the vacuum pump assembly (106), and the brake vacuum assisting unit (102) provides assistance in the stepping process of the brake master cylinder push rod (101).
8. A redundant booster brake for an automobile according to any one of claims 1-4, wherein: when the vehicle is in a running state, if the set main execution unit is a brake electric power assisting unit (103), the electromagnetic valve assembly (107) is in an opening state; if the control unit assembly (105) detects that the fault which affects the power assistance in the brake electric power assisting unit (103) is generated, the system is switched to a vacuum power assisting mode, the electromagnetic valve assembly (107) is closed, and the brake power assistance is realized according to the flow of the vacuum power assisting system.
9. The redundant booster brake of an automobile of claim 8, wherein: the control unit assembly (105) will register a system fault.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210075736.XA CN114347970B (en) | 2022-01-22 | 2022-01-22 | Redundant power-assisted braking device of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210075736.XA CN114347970B (en) | 2022-01-22 | 2022-01-22 | Redundant power-assisted braking device of automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114347970A CN114347970A (en) | 2022-04-15 |
| CN114347970B true CN114347970B (en) | 2024-04-19 |
Family
ID=81091484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210075736.XA Active CN114347970B (en) | 2022-01-22 | 2022-01-22 | Redundant power-assisted braking device of automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114347970B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09272424A (en) * | 1996-04-08 | 1997-10-21 | Mitsubishi Motors Corp | Vehicle braking force control device |
| KR20120110681A (en) * | 2011-03-30 | 2012-10-10 | (주)모토닉 | Electronic vacuum pump control apparatus and method for vehicle |
| CN204775204U (en) * | 2015-03-27 | 2015-11-18 | 同济大学 | Parallel bar formula full decoupling electron hydraulic braking system |
| CN105774788A (en) * | 2016-03-04 | 2016-07-20 | 吉林大学 | Electric power-assisted braking system with composite functions |
| CN106240544A (en) * | 2016-10-12 | 2016-12-21 | 合肥工业大学 | A kind of motor booster brake double with vacuum |
| CN106494258A (en) * | 2016-09-18 | 2017-03-15 | 东风襄阳旅行车有限公司 | Electric automobile vacuum servo and motor composite braking system and brake control method |
| CN110466490A (en) * | 2019-08-22 | 2019-11-19 | 山东理工大学 | A kind of redundancy vacuum boost system of the brake of electric vehicle based on double electric vacuum pumps |
| CN111301382A (en) * | 2020-03-24 | 2020-06-19 | 北京奥易克斯科技有限公司 | Brake vacuum boosting system of hybrid power vehicle and control method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9045120B2 (en) * | 2011-11-04 | 2015-06-02 | Robert Bosch Gmbh | Pedal oscillation suppression |
| US10696282B2 (en) * | 2016-07-01 | 2020-06-30 | Steering Solutions Ip Holding Corporation | Concentric mechanism electric brake booster and master cylinder assembly |
-
2022
- 2022-01-22 CN CN202210075736.XA patent/CN114347970B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09272424A (en) * | 1996-04-08 | 1997-10-21 | Mitsubishi Motors Corp | Vehicle braking force control device |
| KR20120110681A (en) * | 2011-03-30 | 2012-10-10 | (주)모토닉 | Electronic vacuum pump control apparatus and method for vehicle |
| CN204775204U (en) * | 2015-03-27 | 2015-11-18 | 同济大学 | Parallel bar formula full decoupling electron hydraulic braking system |
| CN105774788A (en) * | 2016-03-04 | 2016-07-20 | 吉林大学 | Electric power-assisted braking system with composite functions |
| CN106494258A (en) * | 2016-09-18 | 2017-03-15 | 东风襄阳旅行车有限公司 | Electric automobile vacuum servo and motor composite braking system and brake control method |
| CN106240544A (en) * | 2016-10-12 | 2016-12-21 | 合肥工业大学 | A kind of motor booster brake double with vacuum |
| CN110466490A (en) * | 2019-08-22 | 2019-11-19 | 山东理工大学 | A kind of redundancy vacuum boost system of the brake of electric vehicle based on double electric vacuum pumps |
| CN111301382A (en) * | 2020-03-24 | 2020-06-19 | 北京奥易克斯科技有限公司 | Brake vacuum boosting system of hybrid power vehicle and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114347970A (en) | 2022-04-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101357630B (en) | Brake vacuum booster device for electric automobile and control method thereof | |
| CN109177944B (en) | Hydraulically-coupled electronic hydraulic brake system | |
| CN110466490A (en) | A kind of redundancy vacuum boost system of the brake of electric vehicle based on double electric vacuum pumps | |
| CN201670225U (en) | Control module, brake vacuum boosting device and electric automobile | |
| CN101791980A (en) | Electric vacuum servo device control strategy of electric car brake | |
| CN113147704B (en) | Vehicle brake-by-wire system and braking method thereof | |
| US20140110994A1 (en) | Method for operating a braking system | |
| CN101830214A (en) | Control module, control method, brake vacuum servo device and electric automobile | |
| CN211995537U (en) | Electric control brake power assisting system with redundant modules | |
| CN106671964A (en) | Module assembly of intelligent electronic halt vehicle system | |
| CN112519747A (en) | Safety control system based on speed of a motor vehicle under electric motor car vacuum source failure mode | |
| CN111873971A (en) | Vacuum power-assisted brake system of automobile | |
| CN113212402B (en) | Integrated braking system and integrated braking system control method | |
| CN114347970B (en) | Redundant power-assisted braking device of automobile | |
| US20240025386A1 (en) | Brake system and method for braking a vehicle | |
| CN106828194A (en) | The auxiliary power system and its control method of a kind of pure electric automobile | |
| CN201777235U (en) | Electric vacuum brake assisting system | |
| US20230347860A1 (en) | Hydraulic Brake System, Exhaust Control Method Thereof, Controller, and Vehicle | |
| CN109159776A (en) | A kind of vehicle wheel cylinder hydraulic force control system and method based on dual power source | |
| CN112319447A (en) | Electric automobile vacuum system, control method and vehicle | |
| CN109552304A (en) | New-energy automobile brakes digital electric vacuum assistance system and its control method | |
| CN112406834B (en) | Electro-hydraulic brake system and control method | |
| CN105346532A (en) | Hydraulic servo boosting system | |
| KR102435066B1 (en) | Integrated Braking Device for Vehicle And Braking Method Therefor | |
| CN110435619A (en) | A kind of redundancy digital electric vacuum assistance system of the brake of electric vehicle based on double vacuum tanks |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |