CN108725413B - Brake pressure adjusting device of vehicle ABS system - Google Patents
Brake pressure adjusting device of vehicle ABS system Download PDFInfo
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- CN108725413B CN108725413B CN201810305345.6A CN201810305345A CN108725413B CN 108725413 B CN108725413 B CN 108725413B CN 201810305345 A CN201810305345 A CN 201810305345A CN 108725413 B CN108725413 B CN 108725413B
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- oil
- brake
- valve
- oil pipe
- return valve
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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
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/17—Using electrical or electronic regulation means to control braking
- B60T8/176—Brake regulation specially adapted to prevent excessive wheel slip during vehicle deceleration, e.g. ABS
-
- 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
- B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
- B60T15/02—Application and release valves
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
Abstract
The invention discloses a brake pressure adjusting device of a vehicle ABS system, which comprises a pilot-operated overflow valve, a booster pump, a one-way valve and a first oil return valve, wherein the booster pump is connected with the pilot-operated overflow valve and is used for conveying brake fluid to the pilot-operated overflow valve, the one-way valve is arranged between the pilot-operated overflow valve and a brake, and the first oil return valve is arranged between the brake and a brake main cylinder. The brake pressure regulating device of the vehicle ABS system comprises a pilot overflow valve, a booster pump, an oil return valve and the like which form an independent whole, a brake main cylinder is connected with each brake through a brake pipeline, and the pilot overflow valve can realize higher and more accurate control effect, improve the accuracy of brake pressure regulation, is not easy to damage and saves energy.
Description
Technical Field
The invention belongs to the technical field of brake systems, and particularly relates to a brake pressure adjusting device of an ABS system of a vehicle.
Background
With the rapid development of the automobile industry and the continuous improvement of road traffic facilities, automobiles become a transportation tool of people gradually, people bring comfort and convenience to automobiles, meanwhile, higher requirements on the safety performance of automobile driving are provided, and the improvement of the braking performance of automobiles is always an important task of automobile design and manufacturing departments. Braking performance is one of the main safety features of an automobile. The most basic indexes for evaluating the braking performance of an automobile are braking acceleration, braking distance, braking time and stability of direction during braking. The directional stability during braking means that the automobile can still run along the track in the designated direction during braking. It is very dangerous if the wheels are completely locked due to the emergency braking of the vehicle, especially when driving at high speeds. If the front wheels are locked, the automobile loses the steering capacity; if the rear wheels are locked, the rear wheels will swing or turn around (off tracking and sideslip), and particularly under the condition of wet and slippery road surface, the rear wheels cause great harm to the driving safety. An Anti-Lock Braking System (ABS) for automobile is an integrated device of machine, electricity and liquid, which adopts electronic control technique based on traditional Braking System to realize automatic regulation of Braking force and prevent locking of Braking wheels, so as to obtain the most effective Braking effect and greatly improve the active safety of vehicle. The ABS system can utilize the peak adhesion performance between the tire and the road surface to improve the anti-sideslip performance of the automobile, fully exert the braking efficiency, and simultaneously increase the controllability of the automobile in the braking process, thereby reducing the possibility of accidents, and being a safe brake control system with the advantages of skid resistance, locking prevention and the like.
The brake pressure regulating device of the ABS system mainly comprises a pressure regulating electromagnetic valve, an electric pump, a liquid outlet electromagnetic valve and a liquid storage device. However, the pressure regulating solenoid valve adopted by the existing brake pressure regulating device has inaccurate control effect, brake pressure regulation is not accurate enough, power is high, heat is high, coils are easy to burn, and the electric pump still consumes electric energy.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a brake pressure adjusting device of an ABS system of a vehicle, aiming at improving the accuracy of brake pressure adjustment.
In order to achieve the purpose, the invention adopts the technical scheme that: the brake pressure adjusting device of the vehicle ABS system comprises a pilot-operated overflow valve, a booster pump, a one-way valve and a first oil return valve, wherein the booster pump is connected with the pilot-operated overflow valve and used for conveying brake fluid to the pilot-operated overflow valve, the one-way valve is arranged between the pilot-operated overflow valve and a brake, and the first oil return valve is arranged between the brake and a brake master cylinder.
The booster pump and the first oil return valve are electrically connected with the ABS controller.
An oil inlet of the one-way valve is connected with an oil outlet of the pilot operated overflow valve through an oil pipe, and an oil outlet of the one-way valve is connected with the brake through an oil pipe.
The brake pressure adjusting device of the vehicle ABS system further comprises a gear pump arranged between the brake main cylinder and the booster pump, and the gear pump is connected with the booster pump and the brake main pipe through an oil pipe.
And an oil outlet of the gear pump is connected with an oil inlet of the brake master cylinder through an oil pipe and a second oil return valve.
The brake pressure regulating device of the vehicle ABS system comprises a pilot overflow valve, a booster pump, an oil return valve and the like which form an independent whole, a brake main cylinder is connected with each brake through a brake pipeline, and the pilot overflow valve can realize higher and more accurate control effect, improve the accuracy of brake pressure regulation, is not easy to damage and saves energy.
Drawings
The description includes the following figures, the contents shown are respectively:
FIG. 1 is a schematic illustration of a brake pressure regulating device of the vehicle ABS system of the present invention;
labeled as: 1. a booster pump; 2. a gear pump; 3. a brake master cylinder; 4. a one-way valve; 5. a brake; 6. a first oil return valve; 7. a second oil return valve; 8. an ABS controller; 9. a wheel speed sensor; 10. a pilot operated relief valve; 11. a first oil pipe; 12. a second oil pipe; 13. a third oil pipe; 14. a fourth oil pipe; 15. A fifth oil pipe; 16. a sixth oil pipe; 17. a seventh oil pipe; 18. an eighth oil pipe; 19. and a ninth oil pipe.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for a purpose of helping those skilled in the art to more fully, accurately and deeply understand the concept and technical solution of the present invention and to facilitate its implementation.
As shown in fig. 1, the present invention provides a brake pressure adjusting apparatus of an ABS system for a vehicle, including a pilot-operated relief valve 10, a booster pump 1 connected to the pilot-operated relief valve 10 for delivering brake fluid to the pilot-operated relief valve 10, a check valve 4 disposed between the pilot-operated relief valve 10 and a brake, and a first oil return valve 6 disposed between the brake and a master cylinder 3.
Specifically, as shown in fig. 1, a booster pump 1 and a first oil return valve 6 are electrically connected to an ABS controller 8, the booster pump 1 is connected to a pilot-operated overflow valve 10 through a first oil pipe 11, an oil inlet of the first oil pipe 11 is connected to an oil outlet of the booster pump 1, and an oil outlet of the first oil pipe 11 is connected to an oil inlet of the pilot-operated overflow valve 10. The oil outlet of the pilot overflow valve 10 is connected with the oil inlet of the check valve 4 through a second oil pipe 12, the oil outlet of the check valve 4 is connected with the brake through a third oil pipe 13, brake fluid sequentially flows into the brake through the booster pump 1, the pilot overflow valve 10 and the check valve 4, and lubricating oil entering the brake enables the brake to act to clamp the brake disc, so that braking is achieved. The structure of the pilot operated relief valve 10 is as known to those skilled in the art and will not be described in detail herein.
As shown in fig. 1, an oil inlet of the check valve 4 is connected with an oil outlet of the pilot-operated overflow valve 10 through a second oil pipe 12, and an oil outlet of the check valve 4 is connected with a brake through a third oil pipe 13. The one-way valve 4 enables the brake fluid in the second oil pipe 12 and the third oil pipe 13 to flow only in one direction, the one-way valve 4 enables the brake fluid to flow into the third oil pipe 13 from the second oil pipe 12 only, and the brake fluid in the third oil pipe 13 cannot flow into the second oil pipe 12 through the one-way valve 4. The check valve 4 is an electromagnetic valve, the check valve 4 is electrically connected with the ABS controller 8, the check valve 4 is controlled by the ABS controller 8, and the ABS controller 8 controls the check valve 4 to be opened and closed.
As shown in fig. 1, the brake is connected to the first oil return valve 6 through a fourth oil pipe 14, an oil inlet of the fourth oil pipe 14 is connected to the brake, and an oil outlet of the fourth oil pipe 14 is connected to an oil inlet of the first oil return valve 6. The first oil return valve 6 is an electromagnetic valve, the first oil return valve 6 is electrically connected with the ABS controller 8, the first oil return valve 6 is controlled by the ABS controller 8, and the ABS controller 8 controls the first oil return valve 6 to be opened and closed. The first oil return valve 6 is connected with the brake master cylinder 3 through a fifth oil pipe 15, an oil inlet of the fifth oil pipe 15 is connected with an oil outlet of the first oil return valve 6, and an oil outlet of the fifth oil pipe 15 is connected with an oil inlet of the brake master cylinder 3, so that brake fluid in the brake can flow into the brake master cylinder 3 through the first oil return valve 6.
As shown in fig. 1, the brake pressure adjusting apparatus of the ABS system for a vehicle of the present invention further includes a gear pump 2 disposed between the brake master cylinder 3 and the booster pump 1, and the gear pump 2 is connected to the booster pump 1 and the brake master pipe through an oil pipe. The gear pump 2 is used for transmitting the brake fluid flowing out of the brake main cylinder 3 to the booster pump 1, an oil inlet of the gear pump 2 is connected with an oil outlet of the brake main cylinder 3 through a sixth oil pipe 16, and an oil outlet of the gear pump 2 is connected with an oil inlet of the booster pump 1 through a seventh oil pipe 17.
As shown in fig. 1, the brake pressure adjusting device of the ABS system of the vehicle of the present invention further includes a second oil return valve 7 disposed between the gear pump 2 and the brake master cylinder 3, and an oil outlet of the gear pump 2 is connected to an oil inlet of the brake master cylinder 3 through an oil pipe and the second oil return valve 7. The second oil return valve 7 is an electromagnetic valve, the second oil return valve 7 is electrically connected with the ABS controller 8, the second oil return valve 7 is controlled by the ABS controller 8, and the ABS controller 8 controls the second oil return valve 7 to be opened and closed. An oil outlet of the gear pump 2 is connected with an oil inlet of the second oil return valve 7 through an eighth oil pipe 18, and an oil outlet of the second oil return valve 7 is connected with an oil inlet of the brake master cylinder 3 through a ninth oil pipe 19.
As shown in fig. 1, a booster pump 1 is connected to the first oil pipe 11 and the seventh oil pipe 17, the booster pump 1 boosts the brake fluid, and the booster pump 1 makes the oil pressure in the first oil pipe 11 greater than the oil pressure in the seventh oil pipe 17, thereby ensuring the reliability of braking. The booster pump 1 is driven by a wheel shaft of a vehicle, wheels are arranged on the wheel shaft, the booster pump 1 is connected with the wheel shaft through a transmission mechanism, and the transmission mechanism can be a gear transmission mechanism or a belt transmission mechanism. The gear pump 2 may also be arranged to be driven by a wheel axle of the vehicle, the gear pump 2 being connected to the wheel axle by a transmission, which may be a gear transmission or a belt transmission. The power of the booster pump 1 and the gear pump 2 is taken from the wheel shaft, so that the kinetic energy on the wheel shaft in the braking process can be utilized, and the energy-saving effect is achieved.
As a variant, the booster pump 1 may be driven by a motor to operate, the booster pump 1 is connected to the motor, the motor is electrically connected to the ABS controller 8, and the ABS controls the operation of the booster pump 1. The gear pump 2 can also be driven by a motor to operate, the gear pump 2 is connected with the motor, the motor is electrically connected with the ABS controller 8, and the ABS controls the operation of the gear pump 2.
As shown in fig. 1, during braking, the ABS controller 8 continuously obtains wheel speed signals from the wheel speed sensors and processes the signals to analyze whether any wheel is about to be locked and dragged.
If no wheel is about to be locked and dragged to slide, the ABS controller 8 immediately sends a command to open the booster pump 1 and close the second oil return valve 7, at this time, after the brake fluid in the seventh oil pipe 17 is boosted by the booster pump 1, the oil pressure in the first oil pipe 11 reaches the working pressure of the pilot-operated overflow valve 10, the pilot-operated overflow valve 10 is opened (namely the brake master cylinder 3 is communicated with the brake), the pressure in the brake is continuously increased, and the boosting state in the ABS braking process is realized.
If the ABS controller 8 determines that a wheel (assumed to be the front left wheel) is about to lock and drag, it immediately issues a command to close the booster pump 1 and open the second return valve 7, at which time the brake fluid in the seventh oil pipe 17 flows back to the master cylinder 3 through the second return valve 7. And because the booster pump 1 does not work, the oil pressure in the first oil pipe 11 is not enough to open the pilot-operated overflow valve 10, the brake fluid in the first oil pipe 11 cannot flow into the second oil pipe 12 through the pilot-operated overflow valve 10, the check valve 4 is arranged between the brake at the left front wheel and the pilot-operated overflow valve 10, and the brake fluid in the brake cannot flow back into the first oil pipe 11 (namely, the channel between the brake master cylinder 3 and the left front brake is closed), so that the pressure of the brake at the left front wheel is not increased any more, namely, the pressure maintaining state in the ABS braking process.
If the ABS controller 8 determines that the left front wheel still tends to be locked and dragged, it immediately issues a command, and at the same time opens the first oil return valve 6, closes the booster pump 1, and the brake fluid in the brake flows into the brake master cylinder 3 through the first oil return valve 6, so that the oil pressure in the brake at the left front wheel is reduced, that is, the pressure reduction state during ABS braking.
The invention is described above with reference to the accompanying drawings. It is to be understood that the specific implementations of the invention are not limited in this respect. Various insubstantial improvements are made by adopting the method conception and the technical scheme of the invention; the present invention is not limited to the above embodiments, and can be modified in various ways.
Claims (1)
1. Brake pressure adjusting device of vehicle ABS system characterized in that: the brake system comprises a pilot overflow valve, a booster pump, a one-way valve, a first oil return valve, a gear pump and a second oil return valve, wherein the booster pump is connected with the pilot overflow valve and used for conveying brake fluid to the pilot overflow valve;
the booster pump and the first oil return valve are electrically connected with the ABS controller;
the booster pump is connected with the pilot-operated overflow valve through a first oil pipe, an oil inlet of the one-way valve is connected with an oil outlet of the pilot-operated overflow valve through a second oil pipe, an oil outlet of the one-way valve is connected with the brake through a third oil pipe, and the one-way valve enables brake fluid to flow into the third oil pipe only from the second oil pipe; the brake is connected with the first oil return valve through a fourth oil pipe, the first oil return valve is an electromagnetic valve and is controlled by an ABS (anti-lock brake system) controller, the ABS controller controls the first oil return valve to be opened and closed, the first oil return valve is connected with the brake master cylinder through a fifth oil pipe, an oil inlet of the fifth oil pipe is connected with an oil outlet of the first oil return valve, and an oil outlet of the fifth oil pipe is connected with an oil inlet of the brake master cylinder, so that brake fluid in the brake flows into the brake master cylinder through the first oil return valve;
the second oil return valve is an electromagnetic valve and is electrically connected with the ABS controller, the second oil return valve is controlled by the ABS controller, and the ABS controller controls the second oil return valve to be opened and closed; an oil outlet of the gear pump is connected with an oil inlet of a second oil return valve through an eighth oil pipe, and an oil outlet of the second oil return valve is connected with an oil inlet of the brake master cylinder through a ninth oil pipe;
the booster pump is connected with the first oil pipe and the seventh oil pipe, the booster pump plays a role in boosting the brake fluid, and the booster pump enables the oil pressure in the first oil pipe to be larger than the oil pressure in the seventh oil pipe;
the booster pump is connected with the wheel shaft through a transmission mechanism, and the transmission mechanism is a gear transmission mechanism or a belt transmission mechanism;
the gear pump is connected with the wheel shaft through a transmission mechanism, and the transmission mechanism is a gear transmission mechanism or a belt transmission mechanism;
in the braking process, the ABS controller continuously acquires wheel speed signals from the wheel speed sensor, processes the wheel speed signals and analyzes whether wheels are about to be locked to slip or not;
if no wheel is about to be locked to drag and slide, the ABS controller immediately sends a command to open the booster pump and close the second oil return valve, at the moment, the brake fluid in the seventh oil pipe is boosted by the booster pump, so that the oil pressure in the first oil pipe reaches the working pressure of the pilot-operated overflow valve, the pilot-operated overflow valve is opened, the pressure in the brake is continuously increased, and the boosting state in the ABS braking process is realized;
if the ABS controller judges that a certain wheel is about to be locked and dragged to slide, the ABS controller immediately sends a command to close the booster pump and open the second oil return valve, and at the moment, the brake fluid in the seventh oil pipe flows back to the brake master cylinder through the second oil return valve; because the booster pump does not work, the oil pressure in the first oil pipe is not enough to open the pilot-operated overflow valve, the brake fluid in the first oil pipe cannot flow into the second oil pipe through the pilot-operated overflow valve, a one-way valve is arranged between the brake and the pilot-operated overflow valve, and the brake fluid in the brake also cannot flow back into the first oil pipe, so that the pressure of the brake is not increased any more, namely the pressure maintaining state in the ABS braking process;
if the ABS controller judges that the left front wheel still tends to be locked and dragged to slip, the ABS controller immediately sends a command, and simultaneously opens the first oil return valve, closes the booster pump, and brake fluid in the brake flows into the brake master cylinder through the first oil return valve, so that the oil pressure in the brake is reduced, namely the pressure reduction state in the ABS braking process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810305345.6A CN108725413B (en) | 2018-04-08 | 2018-04-08 | Brake pressure adjusting device of vehicle ABS system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810305345.6A CN108725413B (en) | 2018-04-08 | 2018-04-08 | Brake pressure adjusting device of vehicle ABS system |
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| Publication Number | Publication Date |
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| CN108725413A CN108725413A (en) | 2018-11-02 |
| CN108725413B true CN108725413B (en) | 2021-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810305345.6A Active CN108725413B (en) | 2018-04-08 | 2018-04-08 | Brake pressure adjusting device of vehicle ABS system |
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| CN (1) | CN108725413B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101054085A (en) * | 2006-04-16 | 2007-10-17 | 傅建中 | Braking anti-lock system with running braking function |
| US20130257141A1 (en) * | 2010-11-26 | 2013-10-03 | Nanyang Tai Ding Technology Co., Ltd. | Hydraulic antilock brake device |
| CN203651745U (en) * | 2013-09-20 | 2014-06-18 | 吉林大学 | Integrated multifunctional electro-hydraulic braking system with fine adjustable major loop pressure |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2656391Y (en) * | 2003-10-10 | 2004-11-17 | 淄博矿业集团有限责任公司许厂煤矿 | Hydraulic brake device for hoister |
| CN101046421A (en) * | 2006-03-29 | 2007-10-03 | 比亚迪股份有限公司 | ABS measuring method and system |
| CN201245414Y (en) * | 2008-08-07 | 2009-05-27 | 中国石油天然气股份有限公司 | Hydraulic control disc type brake device |
| CN101804806A (en) * | 2009-02-18 | 2010-08-18 | 力帆实业(集团)股份有限公司 | Rear brake assembly of motorcycle |
| CN102004039B (en) * | 2010-10-25 | 2012-08-29 | 江苏大学 | Test jack horse and test method of electric vehicle electromagnetic and frictional brake integrated system |
| US9574324B2 (en) * | 2011-05-18 | 2017-02-21 | Hitachi Construction Machinery Co., Ltd. | Work machine |
| CN204283876U (en) * | 2014-11-27 | 2015-04-22 | 中国石油天然气股份有限公司 | Adjustable hydraulic intermittent brake device of oil extraction screw pump |
| CN204956456U (en) * | 2015-09-29 | 2016-01-13 | 陈书文 | Emergent slowly fast arresting gear of car pneumatic cylinder formula |
| CN204978621U (en) * | 2015-09-29 | 2016-01-20 | 陈书文 | Emergent slowly fast arresting gear of car hydraulic pressure disk |
| CN106143456A (en) * | 2016-08-30 | 2016-11-23 | 安徽合力股份有限公司 | The brakes of large-tonnage storage battery forktruck |
| CN107344548A (en) * | 2017-07-31 | 2017-11-14 | 安徽合力股份有限公司 | A kind of Electro-hydraulic brake system for electri forklift Brake energy recovery |
-
2018
- 2018-04-08 CN CN201810305345.6A patent/CN108725413B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101054085A (en) * | 2006-04-16 | 2007-10-17 | 傅建中 | Braking anti-lock system with running braking function |
| US20130257141A1 (en) * | 2010-11-26 | 2013-10-03 | Nanyang Tai Ding Technology Co., Ltd. | Hydraulic antilock brake device |
| CN203651745U (en) * | 2013-09-20 | 2014-06-18 | 吉林大学 | Integrated multifunctional electro-hydraulic braking system with fine adjustable major loop pressure |
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| CN108725413A (en) | 2018-11-02 |
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