CN115352425B - Single-channel braking force monitoring device for motorcycle - Google Patents
Single-channel braking force monitoring device for motorcycle Download PDFInfo
- Publication number
- CN115352425B CN115352425B CN202211018728.8A CN202211018728A CN115352425B CN 115352425 B CN115352425 B CN 115352425B CN 202211018728 A CN202211018728 A CN 202211018728A CN 115352425 B CN115352425 B CN 115352425B
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- pressure
- brake
- hydraulic sensor
- sensor
- controller
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 17
- 238000009434 installation Methods 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
- B62L1/00—Brakes; Arrangements thereof
- B62L1/02—Brakes; Arrangements thereof in which cycle wheels are engaged by brake elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
- B62L3/00—Brake-actuating mechanisms; Arrangements thereof
- B62L3/02—Brake-actuating mechanisms; Arrangements thereof for control by a hand lever
- B62L3/023—Brake-actuating mechanisms; Arrangements thereof for control by a hand lever acting on fluid pressure systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
- B62L3/00—Brake-actuating mechanisms; Arrangements thereof
- B62L3/04—Brake-actuating mechanisms; Arrangements thereof for control by a foot lever
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Regulating Braking Force (AREA)
Abstract
The invention provides a single-channel braking force monitoring device for a motorcycle, which comprises: the brake controller is connected with a main oil cylinder of the motorcycle, the main oil cylinder is connected with an upper hydraulic sensor, the upper hydraulic sensor is further connected with an ABS system, the ABS system is connected with a lower hydraulic sensor, the lower hydraulic sensor is connected with a brake, the input end of the controller is connected with the upper hydraulic sensor and the lower hydraulic sensor, and the output end of the controller is connected with a pressure release valve; the hydraulic pressure sensor monitors the real-time pressure in the brake pipeline, the controller collects the pressure values of the upper hydraulic pressure sensor and the lower hydraulic pressure sensor, calculates the pressure difference, records the pressure value corresponding to the pressure point where the pressure difference changes, sets the pressure value as peak pressure, sends the peak pressure to the pressure release valve, records the peak pressure by the pressure release valve, and when the upper hydraulic pressure sensor or the lower hydraulic pressure sensor detects that the pressure value reaches the peak pressure, the pressure release valve is started to release pressure.
Description
Technical Field
The invention relates to the technical field of motorcycle control, in particular to a single-channel braking force monitoring device for a motorcycle.
Background
The ABS (Anti-lock Braking System) Anti-lock braking system sends out signals that the wheels are locked through sensors arranged on the wheels, and the controller instructs the regulator to reduce the oil pressure of the wheel braking cylinder, reduce braking torque, recover the original oil pressure after a certain time, and continuously circulate (5-10 times per second) to always enable the wheels to be in a rotating state and have the maximum braking torque.
The motorcycle without ABS is characterized in that if a brake handle is held down or a brake pedal is pressed down with force during running, the rotation speed of wheels can be rapidly reduced, when the braking force exceeds the friction force between the wheels and the ground, the wheels can be locked, the friction force between the tires and the ground can be reduced due to the completely locked wheels, if the front wheels are locked, the running direction of the motorcycle can not be controlled by a driver, and if the rear wheels are locked, the sideslip phenomenon is very easy to occur.
The ABS system has the function of preventing wheels from locking, keeping the wheels rolling and preventing sliding. The ABS system continuously monitors the rolling state of the wheels, when the wheel speed of the vehicle is judged to be reduced to a certain degree, the pressure of the brake is released, the brake is tightened again, and the vehicle is braked intermittently until the vehicle stops. The ABS system can guarantee a steady state of the motorcycle during braking, but cannot always maintain a maximum braking force. In the intermittent braking process, the braking performance of the vehicle can be obviously reduced, and the problem of insufficient performance exists.
Disclosure of Invention
The object of the present invention is to solve at least the technical drawbacks.
Therefore, the invention aims to provide a single-channel braking force monitoring device for a motorcycle, which solves the problems in the background art and overcomes the defects in the prior art.
In order to achieve the above object, an embodiment of the present invention provides a single-channel braking force monitoring device for a motorcycle, including:
the brake system comprises a brake controller, a main oil cylinder, an upper hydraulic sensor, a pressure release valve, an ABS system, a lower hydraulic sensor, a brake and a controller, wherein the brake controller is connected with the main oil cylinder of a motorcycle, the main oil cylinder is connected with the upper hydraulic sensor, the upper hydraulic sensor is further connected with the ABS system, the ABS system is connected with the lower hydraulic sensor, the lower hydraulic sensor is connected with the brake, the input end of the controller is connected with the upper hydraulic sensor and the lower hydraulic sensor, and the output end of the controller is connected with the pressure release valve;
the upper hydraulic sensor and the lower hydraulic sensor are used for monitoring the real-time pressure in a brake pipeline, the controller collects the pressure values of the upper hydraulic sensor and the lower hydraulic sensor, calculates the pressure difference, records the pressure value corresponding to the pressure point where the pressure difference changes, sets the pressure value as peak pressure, sends the peak pressure to the pressure release valve, and when the upper hydraulic sensor or the lower hydraulic sensor detects that the pressure value reaches the peak pressure, the pressure release valve is started to release pressure so as to maintain the maximum braking force of the brake system.
In any of the above embodiments, the pressure release valve is preferably mounted by one of the following methods:
(1) The pressure relief valve is connected with the upper hydraulic sensor and is arranged between the upper hydraulic sensor and the ABS system;
(2) The pressure relief valve is connected with the lower hydraulic pressure sensor and is arranged between the lower hydraulic pressure sensor and the ABS system.
In any of the above embodiments, it is preferable that the pressure values at each point in the brake line are equal when the ABS system is not active.
By any of the above schemes, preferably, the controller adopts a singlechip.
It is preferable in any of the above aspects that the method further comprises: the switch is connected with the controller and is used for monitoring the pressure difference between the upper hydraulic sensor and the lower hydraulic sensor when braking; opening the switch, starting the device, and setting a pressure value corresponding to a pressure point with a pressure difference changed as the peak pressure; and when the brake is braked again, the pressure relief valve performs pressure relief control according to the peak pressure.
It is preferred by any of the above-described schemes,
when the pressure relief valve adopts the installation mode (1), the pressure relief valve and the upper hydraulic sensor are integrally manufactured;
when the pressure relief valve adopts the installation mode (2), the pressure relief valve and the lower hydraulic sensor are integrally manufactured.
It is preferable in any of the above aspects that the brake controller employs a brake handle or pedal.
It is preferable from any of the above aspects that the brake is a disc brake or a hydraulic drum brake.
The single-channel braking force monitoring device for the motorcycle adopts intelligent control by arranging the hydraulic sensor and the pressure relief valve. Because of the hydraulic pressure sensor, the pressure is monitored in real time. The vehicle is braked in a normal state, and when the wheel speed of the vehicle is reduced to a certain degree, the ABS system automatically acts to control the vehicle not to be locked. The invention aims to obtain the peak pressure of a brake pipeline before ABS acts through a hydraulic sensor, and the peak pressure is maintained by a pressure relief valve to brake. The wheels are not locked, and the maximum braking force can be maintained. The hydraulic sensor and the pressure relief valve are utilized to realize full automation.
The singlechip collects the pressure values of the upper hydraulic sensor and the lower hydraulic sensor, calculates the pressure difference and records the change point of the pressure difference. Because locking does not occur, the pressure values obtained by the upper and lower hydraulic sensors are consistent, and when the ABS system acts, the upper and lower pressure values are different. The singlechip finds out the point of the upper and lower pressure difference, feeds back the point to the pressure relief valve, gives the pressure value of the point to the pressure relief valve, and controls the pressure relief valve according to the pressure value. As soon as this value is reached, the pressure relief valve starts to relieve pressure, so that this pressure value is never exceeded.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
fig. 1 is a structural view of a single-channel braking force monitoring device (with a pressure release valve installed above) for a motorcycle according to an embodiment of the present invention;
fig. 2 is a structural view of a single-channel braking force monitoring device (a relief valve is installed below) for a motorcycle according to an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating connection between a pressure release valve and a controller according to an embodiment of the present invention.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
As shown in fig. 1, a single-channel braking force monitoring device for a motorcycle according to an embodiment of the present invention includes: the brake system comprises a brake controller 1, a master cylinder 2, an upper hydraulic sensor 3, a relief valve, an ABS system 5, a lower hydraulic sensor 6, a brake 7 and a controller 8. The brake controller 1 is connected with a main oil cylinder 2 of the motorcycle, the main oil cylinder 2 is connected with an upper hydraulic pressure sensor 3, the upper hydraulic pressure sensor 3 is further connected with an ABS system 5, the ABS system 5 is connected with a lower hydraulic pressure sensor 6, the lower hydraulic pressure sensor 6 is connected with a brake 7, and the brake 7 is connected with wheels of the motorcycle.
In the embodiment of the present invention, the brake controller 1 employs a brake handle or pedal. The brake 7 is a disc brake or a hydraulic drum brake.
Referring to fig. 3, an input end of the controller 8 is connected to the upper hydraulic sensor 3 and the lower hydraulic sensor 6, and an output end of the controller 8 is connected to a relief valve. In one embodiment of the present invention, the controller 8 employs a single-chip microcomputer.
Under the condition that the ABS system does not work, the pressure values of all points in the brake pipeline are equal, so that only one pressure release valve is arranged on the upper part and the lower part of the brake pipeline. In the event of a locking event, the ABS system 5 is active and the brake pipe up and down pressure is not the same.
The upper and lower hydraulic sensors 3, 6 are used to monitor the real-time pressure in the brake line.
Based on this, the controller 8 collects the pressure values of the upper hydraulic sensor 3 and the lower hydraulic sensor 6, calculates the pressure difference, records the pressure value corresponding to the pressure point where the pressure difference changes, sets the pressure value as the peak pressure, sends the peak pressure to the relief valve, and when the upper hydraulic sensor 3 or the lower hydraulic sensor 6 detects that the pressure value reaches the peak pressure, starts the relief valve to relieve the pressure so as to maintain the maximum braking force of the braking system.
In an embodiment of the present invention, the pressure relief valve is installed by one of the following methods:
(1) The relief valve is connected to the upper hydraulic sensor 3 and is installed between the upper hydraulic sensor 3 and the ABS system 5 as shown in fig. 1. At this time, the relief valve is integrally formed with the upper hydraulic sensor 3.
(2) The relief valve is connected to the lower hydraulic sensor 6 and is installed between the lower hydraulic sensor 6 and the ABS system 5 as shown in fig. 2. At this time, the relief valve is integrally formed with the lower hydraulic pressure sensor 6.
The relief valve and the hydraulic pressure sensor may be separate.
The single-channel braking force monitoring device for the motorcycle further comprises: the switch is connected with the controller, and monitors the pressure difference between the upper hydraulic sensor and the lower hydraulic sensor when braking; opening a switch, starting a device, and setting the pressure at the position as peak pressure; and when the brake is braked again, the pressure relief valve performs pressure relief control according to the peak pressure.
The single-channel braking force monitoring device for the motorcycle adopts intelligent control by arranging the hydraulic sensor and the pressure relief valve. Because of the hydraulic pressure sensor, the pressure is monitored in real time. The vehicle is braked in a normal state, and when the wheel speed of the vehicle is reduced to a certain degree, the ABS system automatically acts to control the vehicle not to lock the wheel.
Because the hydraulic pressure sensor can both monitor the point of pressure change and record this point. And the pressure release valve has higher precision and quicker effect. When the preset pressure is reached, a control command is automatically given to the pressure release valve to release pressure. As soon as this pressure value is reached, no pressure is given. If pressure is again applied, the ABS system will function. This ensures that the brake system remains operating at a pressure. At the front end of the ABS, i.e. the brake controller and the master cylinder, the brake controller pushes the master cylinder, which is connected to the ABS system and down to the brake, which is mounted on the wheel. The front end of the brake is provided with a lower pressure sensor for monitoring the pressure in real time.
The single-channel braking force monitoring device for the motorcycle adopts intelligent control by arranging the hydraulic sensor and the pressure relief valve. Because of the hydraulic pressure sensor, the pressure is monitored in real time. The vehicle is braked in a normal state, and when the wheel speed of the vehicle is reduced to a certain degree, the ABS system automatically acts to control the vehicle not to be locked. The invention aims to obtain the peak pressure of a brake pipeline before ABS acts through a hydraulic sensor, and the peak pressure is maintained by a pressure relief valve to brake. The wheels are not locked, and the maximum braking force can be maintained. The hydraulic sensor and the pressure relief valve are utilized to realize full automation.
The singlechip collects the pressure values of the upper hydraulic sensor and the lower hydraulic sensor, calculates the pressure difference and records the change point of the pressure difference. Because locking does not occur, the pressure values obtained by the upper and lower hydraulic sensors are consistent, and when the ABS system acts, the upper and lower pressure values are different. The singlechip finds out the point of the upper and lower pressure difference, feeds back the point to the pressure relief valve, gives the pressure value of the point to the pressure relief valve, and controls the pressure relief valve according to the pressure value. As soon as this value is reached, the pressure relief valve starts to relieve pressure, so that this pressure value is never exceeded.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
It will be readily understood by those skilled in the art that the present invention, including any combination of parts described in the summary and detailed description of the invention above and shown in the drawings, is limited in scope and does not constitute a complete description of the various aspects of these combinations for the sake of brevity. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Although embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives, and variations may be made in the above embodiments by those skilled in the art without departing from the spirit and principles of the invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. A single-channel braking force monitoring device for a motorcycle, comprising: the brake system comprises a brake controller, a main oil cylinder, an upper hydraulic sensor, a pressure release valve, an ABS system, a lower hydraulic sensor, a brake and a controller, wherein the brake controller is connected with the main oil cylinder of a motorcycle, the main oil cylinder is connected with the upper hydraulic sensor, the upper hydraulic sensor is further connected with the ABS system, the ABS system is connected with the lower hydraulic sensor, the lower hydraulic sensor is connected with the brake, the input end of the controller is connected with the upper hydraulic sensor and the lower hydraulic sensor, and the output end of the controller is connected with the pressure release valve;
the upper hydraulic sensor and the lower hydraulic sensor are used for monitoring the real-time pressure in a brake pipeline, the controller collects the pressure values of the upper hydraulic sensor and the lower hydraulic sensor, calculates the pressure difference, records the pressure value corresponding to the pressure point where the pressure difference changes, sets the pressure value as peak pressure, sends the peak pressure to the pressure release valve, and records the peak pressure by the pressure release valve;
the installation mode of the pressure release valve adopts one of the following modes:
(1) The pressure relief valve is connected with the upper hydraulic sensor and is arranged between the upper hydraulic sensor and the ABS system;
(2) The pressure relief valve is connected with the lower hydraulic pressure sensor and is arranged between the lower hydraulic pressure sensor and the ABS system;
when the pressure relief valve adopts the installation mode (1), the pressure relief valve and the upper hydraulic sensor are integrally manufactured;
when the pressure relief valve adopts the installation mode (2), the pressure relief valve and the lower hydraulic sensor are integrally manufactured;
under the condition that the ABS system does not work, the pressure values of all points in the brake pipeline are equal;
further comprises: the switch is connected with the controller and is used for monitoring the pressure difference between the upper hydraulic sensor and the lower hydraulic sensor when braking; opening the switch, starting the device, and setting a pressure value corresponding to a pressure point with a pressure difference changed as the peak pressure; when the brake is carried out again, the pressure relief valve carries out pressure relief control according to the peak pressure; firstly, enabling the vehicle to brake in a normal state, and when the wheel speed of the vehicle is reduced to a certain degree, enabling the ABS system to automatically act to control the vehicle not to be locked; and obtaining the peak pressure of a brake pipeline before the ABS system acts through the upper hydraulic sensor and the lower hydraulic sensor, and maintaining the peak pressure by using the pressure relief valve to brake.
2. The single channel brake force monitoring device for a motorcycle of claim 1, wherein the controller employs a single chip microcomputer.
3. A single-channel braking force monitoring device for a motorcycle as claimed in claim 1 wherein the brake controller employs a brake handle or pedal.
4. A single-channel braking force monitoring device for a motorcycle as claimed in claim 1 wherein the brake is a disc brake or a hydraulic drum brake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211018728.8A CN115352425B (en) | 2022-08-24 | 2022-08-24 | Single-channel braking force monitoring device for motorcycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211018728.8A CN115352425B (en) | 2022-08-24 | 2022-08-24 | Single-channel braking force monitoring device for motorcycle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115352425A CN115352425A (en) | 2022-11-18 |
| CN115352425B true CN115352425B (en) | 2023-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211018728.8A Active CN115352425B (en) | 2022-08-24 | 2022-08-24 | Single-channel braking force monitoring device for motorcycle |
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| CN (1) | CN115352425B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4023706A1 (en) * | 1990-07-26 | 1992-01-30 | Teves Gmbh Alfred | Hydraulic antilock braking system with combined pressure reservoirs - by low pressure reservoir vol. increasing from min. as function of quantity in high pressure section |
| JP2000270406A (en) * | 1999-03-17 | 2000-09-29 | Nissan Motor Co Ltd | Regenerative cooperative brake control equipment for vehicle |
| CN101509832A (en) * | 2008-03-31 | 2009-08-19 | 北京航空航天大学 | Detection device for combination property of hydraulic ABS pressure regulator assembly |
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| CN103076186A (en) * | 2012-12-28 | 2013-05-01 | 万向钱潮（上海）汽车系统有限公司 | Novel device and novel method for testing ESP/ABS (Electronic Stability Program/Anti-lock Brake System) energy accumulator |
| CN203551288U (en) * | 2012-12-28 | 2014-04-16 | 万向钱潮（上海）汽车系统有限公司 | Novel device for testing ESP/ABS (Electronic Stability Program/Anti-lock Brake System) energy accumulator |
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| CN105705390A (en) * | 2013-10-11 | 2016-06-22 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Method for operating a braking system and a braking system |
| CN108099880A (en) * | 2017-12-20 | 2018-06-01 | 重庆市鑫奕星机电制造有限公司 | A kind of motorcycle anti-lock brake system |
| CN110792816A (en) * | 2019-11-25 | 2020-02-14 | 上海舜华新能源系统有限公司 | Novel integrated multifunctional pressure reducing valve |
| CN211347400U (en) * | 2020-01-21 | 2020-08-25 | 中检西部检测有限公司 | Measurement device for road surface peak value brake force coefficient before motorcycle ABS test |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6715848B2 (en) * | 2002-06-17 | 2004-04-06 | Aerospace Industrial Development Corporation | Hydraulic anti-locking brake system for motorcycle |
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2022
- 2022-08-24 CN CN202211018728.8A patent/CN115352425B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4023706A1 (en) * | 1990-07-26 | 1992-01-30 | Teves Gmbh Alfred | Hydraulic antilock braking system with combined pressure reservoirs - by low pressure reservoir vol. increasing from min. as function of quantity in high pressure section |
| JP2000270406A (en) * | 1999-03-17 | 2000-09-29 | Nissan Motor Co Ltd | Regenerative cooperative brake control equipment for vehicle |
| CN101509832A (en) * | 2008-03-31 | 2009-08-19 | 北京航空航天大学 | Detection device for combination property of hydraulic ABS pressure regulator assembly |
| CN201694180U (en) * | 2010-02-04 | 2011-01-05 | 北汽福田汽车股份有限公司 | One-passage ABS system and vehicle with the same |
| CN103076186A (en) * | 2012-12-28 | 2013-05-01 | 万向钱潮（上海）汽车系统有限公司 | Novel device and novel method for testing ESP/ABS (Electronic Stability Program/Anti-lock Brake System) energy accumulator |
| CN203551288U (en) * | 2012-12-28 | 2014-04-16 | 万向钱潮（上海）汽车系统有限公司 | Novel device for testing ESP/ABS (Electronic Stability Program/Anti-lock Brake System) energy accumulator |
| CN105705390A (en) * | 2013-10-11 | 2016-06-22 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Method for operating a braking system and a braking system |
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| CN108099880A (en) * | 2017-12-20 | 2018-06-01 | 重庆市鑫奕星机电制造有限公司 | A kind of motorcycle anti-lock brake system |
| CN110792816A (en) * | 2019-11-25 | 2020-02-14 | 上海舜华新能源系统有限公司 | Novel integrated multifunctional pressure reducing valve |
| CN211347400U (en) * | 2020-01-21 | 2020-08-25 | 中检西部检测有限公司 | Measurement device for road surface peak value brake force coefficient before motorcycle ABS test |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115352425A (en) | 2022-11-18 |
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