CN110103915B - Wet braking system with service braking, parking braking and retarding functions - Google Patents
Wet braking system with service braking, parking braking and retarding functions Download PDFInfo
- Publication number
- CN110103915B CN110103915B CN201910388478.9A CN201910388478A CN110103915B CN 110103915 B CN110103915 B CN 110103915B CN 201910388478 A CN201910388478 A CN 201910388478A CN 110103915 B CN110103915 B CN 110103915B
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- CN
- China
- Prior art keywords
- braking
- brake
- end cover
- wet
- ecu
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Links
- 230000000979 retarding effect Effects 0.000 title claims abstract description 16
- 238000007789 sealing Methods 0.000 claims description 13
- 230000003068 static effect Effects 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 17
- 239000010720 hydraulic oil 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
- 238000010586 diagram Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
A wet braking system with functions of service braking, parking braking and retarding belongs to the technical field of vehicles and traffic, and comprises a service braking electronic controller, a parking braking controller, a retarding braking control module, an ECU and wheels. And the ECU is connected with the service brake electronic controller and the slow brake control module through wires. The wheel inner side is provided with a wet brake. The ECU is connected with a pressure sensor through a wire, and the pressure sensor is connected with the wet brake through a wire; the parking brake controller is connected with the wet brake through a wire; the ECU is connected with an electric control hydraulic control valve through a wire, and the electric control hydraulic control valve is connected with a brake oil pump unit through a wire; the brake oil pump unit is connected with the electric control hydraulic control valve through a wire. The invention can lead out the braking heat to the braking chamber through the heat conduction device for forced cooling, reduce the abrasion of the high temperature to the braking system, effectively prolong the maintenance period of the braking system and reduce the maintenance cost.
Description
Technical Field
The invention belongs to the technical field of vehicles and traffic, and particularly relates to a wet braking system with functions of service braking, parking braking and retarding.
Background
The national requirements on the safety and reliability of medium and heavy transport vehicles are higher and higher, the related laws and regulations are also gradually sound, the requirements on the safety and reliability of a whole braking system are also increasingly improved, and the traditional braking device of the medium and heavy transport vehicle is in the form of drum type and dry type friction plates, so that only the functions of service braking and parking braking are realized. When the vehicle runs on a special road surface such as a gentle slope, a retarder is required to be installed when the vehicle runs on the special road surface, or a mode of spraying water to a brake drum for cooling is adopted, so that equipment cost and use safety risk are increased, damage to vehicles and pollution to road environments are generated during use, when the vehicle runs on a village and town road, and under the premise that the road junction is increased and the driving environment is complex and frequent braking is required, a braking system is damaged and fails due to overheating, and safety risk is increased.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a wet braking system with functions of service braking, parking braking and retarding, which utilizes a brand new wet brake adopting pressure release braking and pressurizing release braking to realize forced cooling of braking heat conducted out of a braking chamber through a heat conducting device, thereby reducing abrasion of the braking system caused by high temperature.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the wet braking system with the functions of service braking, parking braking and retarding comprises a service braking electronic controller, a parking braking controller, a retarding braking control module, an ECU and wheels.
And the ECU is connected with the service brake electronic controller and the slow brake control module through wires.
The wet brake is arranged on the inner side of the wheel, the ECU is connected with a pressure sensor through a wire, and the pressure sensor is connected with the wet brake through a wire.
The ECU is connected with a pressure sensor through a wire, and the pressure sensor is connected with the wet brake through a wire.
The parking brake controller is connected with the wet brake through a wire.
The ECU is connected with an electric control hydraulic control valve through a wire, and the electric control hydraulic control valve is connected with the wet brake through an oil way.
The electric control hydraulic control valve is connected with a brake oil pump unit through a wire, and the brake oil pump unit is connected with the electric control hydraulic control valve through a wire.
An ABS sensor is arranged at the wet brake, and the ABS sensor is connected with the ECU through a wire. An ABS gear ring is arranged on the ABS sensor.
Further, the brake oil pump unit comprises a high-pressure oil pump, an energy accumulator, an oil tank filter, a pressure sensor and the like.
Further, the wet brake comprises a brake shell, an outer end cover and an inner end cover, wherein the outer end cover and the inner end cover are arranged at two ends of the brake shell through positioning pins.
Further, sealing rings are arranged between the brake shell and the outer end cover and between the brake shell and the inner end cover.
Further, a liquid outlet is arranged on the brake shell.
Further, a fixed ring is arranged on the inner side of the outer end cover, a static friction plate is fixedly arranged on the inner side of the fixed ring, and a dynamic friction plate is arranged on the static friction plate.
Further, a brake piston is arranged on the inner side of the dynamic friction plate, and the brake piston can move in the brake shell.
Further, a disc spring is arranged on the inner side of the brake piston.
Further, a sealing ring is arranged between the brake piston and the brake shell, a positioning ring is arranged on the outer side of the inner end cover, and the inner side of the disc spring is arranged on the positioning ring.
Further, a wheel end connecting seat is arranged on the inner side of the inner end cover, and a sealing ring is arranged between the wheel end connecting seat and the inner end cover.
Further, a brake oil inlet is arranged on the wheel end connecting seat.
Working principle: when the vehicle starts up and runs, hydraulic oil enters the brake piston from the inlet, overcomes the elasticity of the disc spring, pushes the brake piston to move rightwards, separates the dynamic friction plate from the static friction plate, releases the brake and runs the vehicle.
When the service braking is needed, the brake pedal is stepped on, and the ECU adjusts the pressure of a brake piston according to the stepping depth, so that the purpose of controlling the braking moment is achieved; the ECU controls the electric control hydraulic control valve to work, the electric control hydraulic control valve controls the brake oil pump unit, hydraulic pressure of hydraulic oil from an inlet is reduced, the brake piston is pushed to move leftwards, and the dynamic friction plate and the static friction plate are meshed to generate friction force to control braking.
When the vehicle runs on a landslide road and needs a retarding function, a retarding brake switch is pressed, and a brake can adjust the moment of a brake unit according to a set speed so as to achieve retarding downhill control; the braking oil pump unit is controlled by the electric control hydraulic control valve to provide control braking hydraulic pressure, so that friction force is generated by the dynamic friction plate and the static friction plate to control the running speed.
When the parking brake is pressed down, the brake piston is decompressed, and the brake pad brakes.
The beneficial effects of the invention are as follows: the product adopts a brand new wet brake design of pressure release braking and pressure release braking, and can regulate braking moment at a constant speed through a set speed on a long slope to replace the traditional automobile brake. When the wet brake vehicle with the service brake/parking brake and the speed-reducing function runs on the road, the braking heat can be led out of the braking chamber through the heat conduction device to be forcedly cooled, so that the abrasion of the high temperature to the braking system is reduced, the maintenance period of the braking system can be effectively prolonged, and the maintenance cost is reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an assembly view of a brake system.
Reference numerals: the brake device comprises a 1-liquid outlet, a 2-brake shell, a 3-brake piston, a 4-disc spring, a 5-positioning ring, a 6-brake oil inlet, a 7-wheel end connecting seat, a 8-sealing ring I, a 9-sealing ring II, a 10-dynamic friction plate, a 11-static friction plate, a 12-positioning pin, a 13-sealing ring III, a 14-fixing ring, a 15-outer end cover, a 16-service brake electronic controller, a 17-parking brake controller, a 18-retarding brake control module, a 19-pressure sensor, a 20-ECU, a 21-wet brake, a 22-ABS sensor, a 23-ABS gear ring, a 24-electric control hydraulic control valve, a 25-brake oil pump unit, 26-wheels and a 27-inner end cover.
Detailed Description
For easy understanding, the technical scheme of the invention is further specifically described below by way of examples with reference to the accompanying drawings:
the wet braking system with the functions of service braking, parking braking and retarding comprises a service braking electronic controller 16, a parking braking controller 17, a retarding braking control module 18, an ECU20 and wheels 26. The ECU20 is connected to the service brake electronic controller 16 and the slow brake control module 18 by wires.
The ECU20 is connected to a pressure sensor 19 via a wire, a wet brake 21 is provided inside the wheel 26, and the pressure sensor 19 and the parking brake controller 17 are connected to the wet brake 21 via wires.
The ECU20 is connected with an electric control hydraulic control valve 24 through a wire, and the electric control hydraulic control valve 24 is connected with a brake oil pump unit 25 through a wire, and the brake oil pump unit 25 comprises a high-pressure oil pump, an accumulator, an oil tank filter, a pressure sensor and the like.
The electrically controlled hydraulic control valve 24 is connected to the wet brake 21 through an oil passage. An ABS sensor 22 is provided at the wet brake 21, and the ABS sensor 22 is connected to the ECU20 through a wire. The ABS sensor 22 is provided with an ABS ring gear 23.
The wet brake 21 includes a brake housing 2, an outer end cover 15, and an inner end cover 27, the outer end cover 15 and the inner end cover 27 being provided at both ends of the brake housing 2 by the positioning pins 12. The brake housing 2 is provided with a liquid outlet 1. Sealing rings III 13 are arranged between the brake housing 2 and the outer end cover 15 and the inner end cover 27.
The inner side of the outer end cover 15 is provided with a fixed ring 14, the inner side of the fixed ring 14 is fixedly provided with a static friction plate 11, and the static friction plate 11 is provided with a dynamic friction plate 10. The inner side of the dynamic friction plate 10 is provided with a brake piston 3, and the inner side of the brake piston 3 is provided with a disc spring 4.
Two second sealing rings 9 are arranged between the brake piston 3 and the brake housing 2, so that the brake piston 3 is in sealing connection with the brake housing 2, and the brake piston 3 can move in the brake housing 2.
The outside of inner end cover 27 is provided with holding ring 5, and the inboard of dish spring 4 sets up on holding ring 5. The outside of the inner end cover 27 is provided with a wheel end connecting seat 7, and the wheel end connecting seat 7 is provided with a brake oil inlet 6. A first sealing ring 8 is arranged between the wheel end connecting seat 7 and the inner end cover 27.
The above embodiments are merely illustrative or explanatory of the technical solution of the present invention and should not be construed as limiting the technical solution of the present invention, and it is apparent that various modifications and variations can be made to the present invention by those skilled in the art without departing from the spirit and scope of the present invention. The present invention also includes such modifications and variations provided they come within the scope of the appended claims and their equivalents.
Claims (1)
1. The comprehensive wet braking system with the integrated functions of service braking, parking braking and retarding comprises a service braking electronic controller, a parking braking controller, a retarding braking control module, an ECU and wheels, wherein the ECU is connected with the service braking electronic controller and the retarding braking control module through wires, the wet braking is arranged on the inner side of each wheel, the ECU is connected with a pressure sensor through wires, the pressure sensor is connected with the wet braking through wires, the parking braking controller is connected with the wet braking through wires, the ECU is connected with an electric control hydraulic control valve through wires, the electric control hydraulic control valve is connected with the wet braking through an oil way, the electric control hydraulic control valve is connected with a brake oil pump unit through wires, the brake oil pump unit is connected with the electric control hydraulic control valve through wires, an ABS sensor is arranged at the position of the wet braking, the ABS sensor is connected with the ECU through wires, and an ABS gear ring is arranged on the ABS sensor;
the brake oil pump unit comprises a high-pressure oil pump, an energy accumulator, an oil tank filter and a pressure sensor;
the wet brake comprises a brake shell, an outer end cover and an inner end cover, wherein the outer end cover and the inner end cover are arranged at two ends of the brake shell through positioning pins;
sealing rings are arranged between the brake shell and the outer end cover and between the brake shell and the inner end cover;
a liquid outlet is arranged on the brake shell;
the inner side of the outer end cover is provided with a fixed ring, the inner side of the fixed ring is fixedly provided with a static friction plate, and the static friction plate is provided with a dynamic friction plate;
a brake piston is arranged on the inner side of the dynamic friction plate;
a sealing ring is arranged between the brake piston and the brake shell, and a positioning ring is arranged on the outer side of the inner end cover;
the inner side of the brake piston is provided with a disc spring, and the inner side of the disc spring is arranged on the positioning ring;
the inner side of the inner end cover is provided with a wheel end connecting seat, a brake oil inlet is arranged on the wheel end connecting seat, and a sealing ring is arranged between the wheel end connecting seat and the inner end cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910388478.9A CN110103915B (en) | 2019-05-10 | 2019-05-10 | Wet braking system with service braking, parking braking and retarding functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910388478.9A CN110103915B (en) | 2019-05-10 | 2019-05-10 | Wet braking system with service braking, parking braking and retarding functions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110103915A CN110103915A (en) | 2019-08-09 |
| CN110103915B true CN110103915B (en) | 2024-03-29 |
Family
ID=67489316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910388478.9A Active CN110103915B (en) | 2019-05-10 | 2019-05-10 | Wet braking system with service braking, parking braking and retarding functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110103915B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110843740B (en) * | 2019-10-25 | 2021-08-13 | 中国煤炭科工集团太原研究院有限公司 | Hydraulic-mechanical combined braking system for coal mine articulated explosion-proof vehicle |
| CN113531010A (en) * | 2021-05-17 | 2021-10-22 | 中国煤炭科工集团太原研究院有限公司 | Triple braking system for overhead rail vehicle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3917037A (en) * | 1974-11-11 | 1975-11-04 | Caterpillar Tractor Co | Brake system |
| JPH0717376A (en) * | 1993-06-30 | 1995-01-20 | Mitsubishi Motors Corp | Branking device for vehicle |
| CN105667477A (en) * | 2016-04-13 | 2016-06-15 | 武汉科技大学 | Wire driven hydraulic parking braking system for full-wheel steering electric-wheel car |
| CN108248582A (en) * | 2018-02-13 | 2018-07-06 | 隆中控股集团股份有限公司 | For the electric control braking method and computer storage media of automobile |
| CN207875607U (en) * | 2018-02-13 | 2018-09-18 | 隆中控股集团股份有限公司 | Electric controlled brake system for automobile |
| CN210793145U (en) * | 2019-05-10 | 2020-06-19 | 吉林大学青岛汽车研究院 | Wet brake system with service brake, parking brake and speed slowing functions |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007037346C5 (en) * | 2007-08-08 | 2017-11-23 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Control unit for a brake system of a commercial vehicle and method for controlling a brake system |
-
2019
- 2019-05-10 CN CN201910388478.9A patent/CN110103915B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3917037A (en) * | 1974-11-11 | 1975-11-04 | Caterpillar Tractor Co | Brake system |
| JPH0717376A (en) * | 1993-06-30 | 1995-01-20 | Mitsubishi Motors Corp | Branking device for vehicle |
| CN105667477A (en) * | 2016-04-13 | 2016-06-15 | 武汉科技大学 | Wire driven hydraulic parking braking system for full-wheel steering electric-wheel car |
| CN108248582A (en) * | 2018-02-13 | 2018-07-06 | 隆中控股集团股份有限公司 | For the electric control braking method and computer storage media of automobile |
| CN207875607U (en) * | 2018-02-13 | 2018-09-18 | 隆中控股集团股份有限公司 | Electric controlled brake system for automobile |
| CN210793145U (en) * | 2019-05-10 | 2020-06-19 | 吉林大学青岛汽车研究院 | Wet brake system with service brake, parking brake and speed slowing functions |
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| Publication number | Publication date |
|---|---|
| CN110103915A (en) | 2019-08-09 |
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