CN115123166A - Hydraulic braking system and control method - Google Patents
Hydraulic braking system and control method Download PDFInfo
- Publication number
- CN115123166A CN115123166A CN202210628668.5A CN202210628668A CN115123166A CN 115123166 A CN115123166 A CN 115123166A CN 202210628668 A CN202210628668 A CN 202210628668A CN 115123166 A CN115123166 A CN 115123166A
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000003921 oil Substances 0.000 claims abstract description 73
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 32
- 230000004044 response Effects 0.000 claims description 9
- 238000011010 flushing procedure Methods 0.000 claims description 5
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 238000004146 energy storage Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 239000012530 fluid Substances 0.000 description 8
- 238000004590 computer program Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 4
- 239000002803 fossil fuel Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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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
- B60T13/66—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)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention discloses a hydraulic braking system and a control method, belonging to the technical field of engineering machinery, wherein the system comprises a controller, a motor, an oil pump, a hydraulic oil tank, a pedal valve, a service brake, an electric control reversing valve, a parking brake, a service braking energy accumulator and a parking braking energy accumulator, wherein an oil inlet of the oil pump is connected with the hydraulic oil tank, an oil outlet of the oil pump is connected with the service braking energy accumulator and the parking braking energy accumulator, and the oil pump is connected with the motor and can pump oil from the hydraulic oil tank to flush the system under the drive of the motor; when the pedal valve is at a braking position, the service brake energy accumulator and the service brake are communicated, and when the pedal valve is at a releasing position, the service brake and the hydraulic oil tank are communicated; the electronic control reversing valve is communicated with the parking brake energy accumulator and the parking brake when in a releasing position, and is communicated with the parking brake and the hydraulic oil tank when in a braking position; the controller is electrically connected with the motor and is used for controlling the rotation of the motor; the quick service braking, parking braking and releasing are realized, the working efficiency is ensured, and the purpose of energy conservation is achieved.
Description
Technical Field
The invention relates to a hydraulic braking system and a control method, and belongs to the technical field of engineering machinery.
Background
Along with the development of society, the demand of human life on fossil fuel energy is getting larger and larger, and meanwhile, the pollution to the environment is getting more and more serious, and all countries in the world are actively developing new energy to replace the traditional fossil fuel energy; the engineering machinery industry and the industrial vehicle industry are also greatly promoting the power source switching by using a motor as power to replace an internal combustion engine as power.
The working conditions of engineering machinery and industrial vehicles are severe, when a traditional full hydraulic brake system works, a motor always works at a high rotating speed, even if the system does not fill liquid, the brake system often reaches the rated pressure of the system, the overflow condition occurs, and the consumed energy is wasted.
A part of wasted energy causes the motor to generate heat, and the motor is heated to a certain temperature to enter a thermal protection state and cannot work normally; another part of the wasted energy raises the temperature of the hydraulic oil, and the hydraulic oil with too high temperature can reduce the reliability and the service life of the hydraulic system.
Disclosure of Invention
The invention aims to provide a hydraulic braking system and a control method, which can realize quick service braking, parking braking and release of the service braking and the parking braking, and avoid energy loss caused by the continuous work of a motor, thereby achieving the aim of saving energy.
In order to realize the purpose, the invention is realized by adopting the following technical scheme:
in a first aspect, the invention provides a hydraulic brake system which comprises a controller, a motor, an oil pump, a hydraulic oil tank, a pedal valve, a service brake, an electric control reversing valve, a parking brake, a service brake energy accumulator and a parking brake energy accumulator, wherein an oil inlet of the oil pump is connected with the hydraulic oil tank, an oil outlet of the oil pump is connected with the service brake energy accumulator and the parking brake energy accumulator, and the oil pump is connected with the motor and can pump oil from the hydraulic oil tank to flush the system under the drive of the motor;
when the pedal valve is in a braking position, the service brake energy accumulator and the service brake are communicated, and when the pedal valve is in a releasing position, the service brake and the hydraulic oil tank are communicated;
when the electronic control reversing valve is in a releasing position, the parking brake energy accumulator and the parking brake are communicated, and when the electronic control reversing valve is in a braking position, the parking brake and the hydraulic oil tank are communicated;
the controller is electrically connected with the motor and is used for controlling the rotation of the motor;
the parking brake system further comprises a third pressure switch arranged between the service brake energy accumulator and the pedal valve and a sixth pressure switch arranged between the parking brake energy accumulator and the electric control reversing valve, the controller is respectively connected with the third pressure switch and the sixth pressure switch, and when a pressure value detected by the third pressure switch is greater than a preset fourth pressure value and a pressure value detected by the sixth pressure switch is greater than a preset fifth pressure value, a stop signal is sent to the controller, and the controller controls the motor to stop rotating;
the hydraulic control system is characterized by further comprising a second pressure switch arranged between the service braking energy accumulator and the pedal valve and a fifth pressure switch arranged between the parking braking energy accumulator and the electric control reversing valve, wherein the controller is respectively connected with the second pressure switch and the fifth pressure switch, when the pressure value detected by the second pressure switch is smaller than a preset second pressure value or the pressure value detected by the fifth pressure switch is smaller than a preset third pressure value, a flushing signal is sent to the controller, and the controller controls the motor to rotate to drive the oil pump to flush the system.
In combination with the first aspect, further, still include first check valve, first check valve sets up between oil pump and service brake energy storage ware for prevent fluid refluence.
Combine the first aspect, it is further, still include the second check valve, the second check valve sets up between oil pump and parking braking energy storage ware for prevent fluid refluence.
With reference to the first aspect, the hydraulic control system further comprises an overflow valve connected between an oil outlet of the oil pump and the hydraulic oil tank, and the overflow valve is used for limiting the working pressure of the whole system.
With reference to the first aspect, the system further includes a first pressure switch disposed between the oil pump and the relief valve;
the first pressure switch is connected with the controller, when the pressure value detected by the first pressure switch is greater than a preset first pressure value, a high-pressure signal is sent to the controller, and the controller controls a high-pressure alarm lamp connected with the controller to be turned on.
With reference to the first aspect, further, the oil pump is a gear pump.
In a second aspect, the present invention further provides a control method based on any one of the systems in the first aspect, including:
in response to the fact that the pressure value detected by the second pressure switch is smaller than a preset second pressure value or the pressure value detected by the fifth pressure switch is smaller than a preset third pressure value, the motor is controlled to rotate to drive the oil pump to flush the system;
and controlling the motor to stop rotating in response to the fact that the pressure value detected by the third pressure switch is larger than a preset fourth pressure value and the pressure value detected by the sixth pressure switch is larger than a preset fifth pressure value.
With reference to the second aspect, the method further includes the following steps:
and controlling the high-pressure alarm lamp to light in response to the fact that the pressure value detected by the first pressure switch is greater than a preset first pressure value.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a hydraulic braking system and a control method, wherein an oil inlet of an oil pump is connected with a hydraulic oil tank, an oil outlet is connected with a service braking energy accumulator and a parking braking energy accumulator, the oil pump is connected with a motor and can extract oil from a hydraulic oil tank under the drive of the motor to flush the system, the service braking energy accumulator and the hydraulic oil tank are communicated when a pedal valve is positioned at a braking position, the oil is transmitted to a service brake at the moment, so that the service braking is realized, the service brake and the hydraulic oil tank are communicated when the pedal valve is positioned at a release position, and the oil in the service brake flows back to the hydraulic oil tank at the moment, so that the service braking is released; when the electronic control reversing valve is in the releasing position, the parking brake energy accumulator and the parking brake are communicated, oil is transmitted to the parking brake at the moment, so that the parking brake is released, when the electronic control reversing valve is in the braking position, the parking brake and the hydraulic oil tank are communicated, and the oil in the parking brake flows back to the hydraulic oil tank at the moment, so that the parking brake is realized;
when the pressure value detected by the second pressure switch is smaller than the preset second pressure value or the pressure value detected by the fifth pressure switch is smaller than the preset third pressure value, the controller controls the motor to rotate to drive the oil pump to flush the system, the system pressure is maintained, and the braking and braking releasing efficiency is guaranteed;
when the pressure value detected by the third pressure switch is greater than the preset fourth pressure value and the pressure value detected by the sixth pressure switch is greater than the preset fifth pressure value, the controller controls the motor to stop rotating, so that energy loss caused by the fact that the motor works all the time can be avoided, and the purpose of energy conservation is achieved.
Drawings
Fig. 1 is a schematic structural diagram of a hydraulic brake system according to an embodiment of the present invention.
1. A motor; 2. an oil pump; 3. an overflow valve; 4. a second check valve; 5. a first check valve; 6. a first pressure switch; 7. a parking brake accumulator; 8. a service braking accumulator; 9. a fifth pressure switch; 10. a second pressure switch; 11. a sixth pressure switch; 12. a third pressure switch; 13. an electrically controlled directional valve; 14. a pedal valve; 15. a seventh pressure switch; 16. a fourth pressure switch; 17. a service brake; 18. a parking brake; 19. a hydraulic oil tank; 20. and a controller.
Detailed Description
The present invention is further described with reference to the accompanying drawings, and the following examples are only for clearly illustrating the technical solutions of the present invention, and should not be taken as limiting the scope of the present invention.
Example 1
As shown in fig. 1, a hydraulic brake system according to an embodiment of the present invention includes a motor 1, an oil pump 2, an overflow valve 3, a first check valve 5, a second check valve 4, a first pressure switch 6, a parking brake accumulator 7, a service brake accumulator 8, a fifth pressure switch 9, a second pressure switch 10, a sixth pressure switch 11, a third pressure switch 12, an electrically controlled directional valve 13, a pedal valve 14, a seventh pressure switch 15, a fourth pressure switch 16, a service brake 17, a parking brake 18, a hydraulic oil tank 19, and a controller 20.
The controller 20 is connected to the motor 1 and controls the operation (rotation and stop) of the motor 1 in accordance with the received signals transmitted from the pressure switches.
Motor 1 and oil pump 2 are connected, can drive oil pump 2 work when motor 1 is rotatory, hydraulic tank 19 is connected to the oil inlet of oil pump 2, the oil-out and service braking energy storage ware 8, parking braking energy storage ware 7 link to each other, can extract fluid from hydraulic tank 19 under motor 1's the drive and carry the flushing liquid in the system, the oil-out of oil pump 2 communicates to hydraulic tank 19 through overflow valve 3, can the operating pressure of limiting system, assurance system work safety.
In the present embodiment, the oil pump 2 is a gear pump.
Service braking energy storage ware 8 sets up between oil pump 2 and footboard valve 14, parking braking energy storage ware 7 sets up between oil pump 2 and automatically controlled switching-over valve 13, two energy storage wares all are used for storing fluid, when oil pump 2 breaks down and can not provide fluid for the system, two energy storage wares can provide fluid for the system, service braking energy storage ware 8 provides fluid for service braking's needs promptly, parking braking energy storage ware 7 provides fluid for parking braking's needs, the stability of system is improved, guarantee that the system operation does not break off.
The first check valve 5 is arranged at a position between the oil pump 2 and the service braking energy accumulator 8, and the second check valve 4 is arranged at a position between the oil pump 2 and the parking braking energy accumulator 7 and is used for preventing oil from flowing backwards or leaking.
In the embodiment, the pedal valve 14 is a three-position four-way valve, when the pedal valve 14 is in a braking position, the pedal valve 14 is communicated with the service brake energy accumulator 8 and the service brake 17, and at the moment, the oil is transmitted to the service brake 17, so that service braking is realized, at the moment, the oil passes through a fourth pressure switch 16 arranged between the pedal valve 14 and the service brake 17, the fourth pressure switch 16 sends a light signal to the controller 20 after detecting the pressure, and the controller 20 controls a brake tail lamp connected with the controller to light; when the pedal valve 14 is at the release position, the service brake 17 is communicated with the hydraulic oil tank 19, and the oil in the service brake 17 flows back to the hydraulic oil tank 19, so that the service brake is released.
In this embodiment, the electronically controlled directional valve 13 is a two-position four-way valve, when the electronically controlled directional valve 13 is in a release position, the parking brake accumulator 7 and the parking brake 18 are communicated, and at this time, the oil is transmitted to the parking brake 18, so that the parking brake is released, at this time, the oil passes through a seventh pressure switch 15 arranged between the electronically controlled directional valve 13 and the parking brake 18, the seventh pressure switch 15 sends a light-off signal to the controller 20 after detecting the pressure, and the controller 20 controls a parking indicator lamp connected with the controller to be turned off; when the electronic control reversing valve 13 is in the braking position, the parking brake 18 is communicated with the hydraulic oil tank 19, and at the moment, the oil in the parking brake 18 flows back to the hydraulic oil tank 19, so that the parking brake is realized.
First pressure switch 6 sets up between oil pump 2 and overflow valve 3, and first pressure switch 6 is connected with controller 20, and the pressure value that detects as first pressure switch 6 is greater than the first pressure value of predetermineeing, sends high pressure signal to controller 20, and controller 20 control is rather than the high pressure warning light lamp light that links to each other.
The second pressure switch 10 is arranged between the service brake energy accumulator 8 and the pedal valve 14, the second pressure switch 10 is connected with the controller 20, when the pressure value detected by the second pressure switch 10 is smaller than a preset second pressure value, the second pressure switch 10 sends a flushing signal to the controller 20, and the controller 20 controls the motor 1 to rotate to drive the oil pump 2 to flush the system.
The fifth pressure switch 9 is arranged between the parking brake accumulator 7 and the electric control reversing valve 13, the fifth pressure switch 9 is connected with the controller 20, when the pressure value detected by the fifth pressure switch 9 is smaller than a preset third pressure value, the fifth pressure switch 9 sends a flushing signal to the controller 20, and the controller 20 controls the motor 1 to rotate to drive the oil pump 2 to flush the system.
A third pressure switch 12 is arranged between the service brake energy accumulator 8 and the pedal valve 14, and a sixth pressure switch 11 is arranged between the parking brake energy accumulator 7 and the electric control reversing valve 13; the controller 20 is respectively connected with the third pressure switch 12 and the sixth pressure switch 11, when the pressure value detected by the third pressure switch 12 is greater than the preset fourth pressure value and the pressure value detected by the sixth pressure switch 11 is greater than the preset fifth pressure value, the third pressure switch 12 and the sixth pressure switch 11 both send stop signals to the controller 20, and the controller 20 controls the motor 1 to stop rotating after receiving the stop signals sent by the third pressure switch 12 and the sixth pressure switch 11 at the same time, so that the purpose of energy conservation is achieved.
Example 2
The control method based on the system of embodiment 1 provided by the embodiment of the present invention includes:
in response to that the pressure value detected by the second pressure switch 10 is smaller than a preset second pressure value or the pressure value detected by the fifth pressure switch 9 is smaller than a preset third pressure value, the motor 1 is controlled to rotate to drive the oil pump 2 to flush the system;
and controlling the motor 1 to stop rotating in response to the pressure value detected by the third pressure switch 12 being greater than the preset fourth pressure value and the pressure value detected by the sixth pressure switch 11 being greater than the preset fifth pressure value.
The control method based on the system of embodiment 1 provided by the embodiment of the present invention further includes the following steps:
and controlling the high-pressure alarm lamp to light in response to the fact that the pressure value detected by the first pressure switch 6 is larger than a preset first pressure value.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A hydraulic braking system is characterized by comprising a controller, a motor, an oil pump, a hydraulic oil tank, a pedal valve, a service brake, an electric control reversing valve, a parking brake, a service brake energy accumulator and a parking brake energy accumulator, wherein an oil inlet of the oil pump is connected with the hydraulic oil tank, an oil outlet of the oil pump is connected with the service brake energy accumulator and the parking brake energy accumulator, and the oil pump is connected with the motor and can pump oil from the hydraulic oil tank to flush the system under the drive of the motor;
when the pedal valve is in a braking position, the service brake energy accumulator and the service brake are communicated, and when the pedal valve is in a releasing position, the service brake and the hydraulic oil tank are communicated;
when the electronic control reversing valve is in a releasing position, the parking brake energy accumulator and the parking brake are communicated, and when the electronic control reversing valve is in a braking position, the parking brake and the hydraulic oil tank are communicated;
the controller is electrically connected with the motor and used for controlling the rotation of the motor;
the electric control reversing valve is characterized by also comprising a third pressure switch arranged between the service braking energy accumulator and the pedal valve and a sixth pressure switch arranged between the parking braking energy accumulator and the electric control reversing valve, wherein the controller is respectively connected with the third pressure switch and the sixth pressure switch, and when a pressure value detected by the third pressure switch is greater than a preset fourth pressure value and a pressure value detected by the sixth pressure switch is greater than a preset fifth pressure value, a stop signal is sent to the controller, and the controller controls the motor to stop rotating;
the hydraulic control system is characterized by further comprising a second pressure switch arranged between the service braking energy accumulator and the pedal valve and a fifth pressure switch arranged between the parking braking energy accumulator and the electric control reversing valve, wherein the controller is respectively connected with the second pressure switch and the fifth pressure switch, when the pressure value detected by the second pressure switch is smaller than a preset second pressure value or the pressure value detected by the fifth pressure switch is smaller than a preset third pressure value, a flushing signal is sent to the controller, and the controller controls the motor to rotate to drive the oil pump to flush the system.
2. A hydraulic brake system according to claim 1, further comprising a first check valve provided between the oil pump and the service brake accumulator for preventing a reverse flow of the oil.
3. The hydraulic brake system of claim 1, further comprising a second check valve disposed between the oil pump and the parking brake accumulator for preventing a reverse flow of the oil.
4. The hydraulic brake system as recited in claim 1, further comprising an overflow valve connecting an oil outlet of the oil pump and the hydraulic oil tank for limiting an operating pressure of the entire system.
5. The hydraulic brake system of claim 4, further including a first pressure switch disposed between the oil pump and the relief valve;
first pressure switch is connected with the controller, and when the pressure value that first pressure switch detected was greater than the first pressure value of predetermineeing, send high pressure signal to the controller, the controller control is rather than the high pressure alarm lamp light that links to each other.
6. A hydraulic brake system according to claim 1, wherein the oil pump is a gear pump.
7. The control method of the hydraulic brake system according to any one of claims 1 to 6, characterized by comprising:
in response to the fact that the pressure value detected by the second pressure switch is smaller than a preset second pressure value or the pressure value detected by the fifth pressure switch is smaller than a preset third pressure value, the motor is controlled to rotate to drive the oil pump to flush the system;
and controlling the motor to stop rotating in response to the fact that the pressure value detected by the third pressure switch is larger than a preset fourth pressure value and the pressure value detected by the sixth pressure switch is larger than a preset fifth pressure value.
8. The control method of the hydraulic brake system according to claim 7, characterized by further comprising the steps of:
and controlling the high-pressure alarm lamp to light in response to the fact that the pressure value detected by the first pressure switch is greater than a preset first pressure value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210628668.5A CN115123166A (en) | 2022-06-06 | 2022-06-06 | Hydraulic braking system and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210628668.5A CN115123166A (en) | 2022-06-06 | 2022-06-06 | Hydraulic braking system and control method |
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| Publication Number | Publication Date |
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| CN115123166A true CN115123166A (en) | 2022-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210628668.5A Pending CN115123166A (en) | 2022-06-06 | 2022-06-06 | Hydraulic braking system and control method |
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| Country | Link |
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| CN (1) | CN115123166A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115973113A (en) * | 2023-01-06 | 2023-04-18 | 北京汽车集团越野车有限公司 | Vehicle electronic control hydraulic braking system and vehicle with same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107264499A (en) * | 2017-06-30 | 2017-10-20 | 徐州徐工矿山机械有限公司 | A kind of quarry tipper hydraulic auxiliary brake system and its control method |
| CN109249918A (en) * | 2018-09-26 | 2019-01-22 | 三汽车制造有限公司 | Brake fluid system and vehicle |
| CN212098809U (en) * | 2020-05-15 | 2020-12-08 | 徐州徐工铁路装备有限公司 | Electro-hydraulic brake system and engineering vehicle |
-
2022
- 2022-06-06 CN CN202210628668.5A patent/CN115123166A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107264499A (en) * | 2017-06-30 | 2017-10-20 | 徐州徐工矿山机械有限公司 | A kind of quarry tipper hydraulic auxiliary brake system and its control method |
| CN109249918A (en) * | 2018-09-26 | 2019-01-22 | 三汽车制造有限公司 | Brake fluid system and vehicle |
| CN212098809U (en) * | 2020-05-15 | 2020-12-08 | 徐州徐工铁路装备有限公司 | Electro-hydraulic brake system and engineering vehicle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115973113A (en) * | 2023-01-06 | 2023-04-18 | 北京汽车集团越野车有限公司 | Vehicle electronic control hydraulic braking system and vehicle with same |
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Application publication date: 20220930 |