CN215154554U - Gas cap liquid service braking system and four-axis cross-country vehicle - Google Patents
Gas cap liquid service braking system and four-axis cross-country vehicle Download PDFInfo
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- CN215154554U CN215154554U CN202121003154.8U CN202121003154U CN215154554U CN 215154554 U CN215154554 U CN 215154554U CN 202121003154 U CN202121003154 U CN 202121003154U CN 215154554 U CN215154554 U CN 215154554U
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Abstract
The utility model discloses a gas cap liquid service braking system, include: the brake system comprises a master brake valve, a first gas cap liquid brake circuit and a second gas cap liquid brake circuit; the first pneumatic hydraulic brake circuit includes: the brake system comprises a first air storage mechanism, a first relay valve, a first brake master cylinder and a second brake master cylinder; the inlet of the first air storage mechanism is used for connecting a compressed air source, and the outlet of the first air storage mechanism is connected with the air inlet of the first relay valve; a first inlet of the master brake valve is connected with a first air storage mechanism, and a first outlet of the master brake valve is connected with a control port of a first relay valve; the air outlet of the first relay valve is connected with a first brake master cylinder through a first regulator and connected with a second brake master cylinder through a second regulator; the second pneumatic hydraulic brake circuit includes: the second air storage mechanism, the second relay valve, the third brake master cylinder, the fourth brake master cylinder, the fifth brake master cylinder and the sixth brake master cylinder; the braking system has the characteristics of quick response time and high braking efficiency.
Description
Technical Field
The utility model relates to a vehicle braking technical field especially relates to a gas cap liquid service braking system and four-axis cross country vehicle.
Background
At present, for some special vehicles, such as extra-heavy special off-road vehicles, a common air pressure braking system is adopted, but the air pressure braking system is complex in structure, heavy, large in brake size and large in occupied space of arrangement of a brake chamber, and meanwhile, when the whole vehicle is too long, the generation and removal of air pressure in a pipeline are slow, and the braking reaction time is too long. The full hydraulic brake system has the advantages of fast brake response, strong brake capacity, light brake and the like, but the system has a complex structure, a plurality of precise parts, high cost and high sealing requirement due to high pressure, so the full hydraulic brake system is mainly applied to cars, light trucks, large buses, cargo vehicles and ultra-heavy off-road vehicles and is not applied.
SUMMERY OF THE UTILITY MODEL
The utility model provides a gas cap liquid service braking system and four-axis cross country vehicle to solve or partial current cross country vehicle mainly uses air brake, lead to the braking system structure complicacy, the technical problem of braking reaction time overlength.
In order to solve the technical problem, the utility model provides a gas cap liquid service braking system, wherein each wheel of a second bridge, a third bridge and a fourth bridge of a vehicle is provided with a wheel speed sensor; the pneumatic hydraulic service braking system comprises: the brake system comprises a master brake valve, a first gas cap liquid brake circuit and a second gas cap liquid brake circuit;
the brake master valve is in communication connection with a vehicle central control system and is used for communicating or disconnecting the first gas cap liquid brake circuit or the second gas cap liquid brake circuit;
the first pneumatic hydraulic brake circuit includes: the brake system comprises a first air storage mechanism, a first relay valve, a first brake master cylinder and a second brake master cylinder;
the inlet of the first air storage mechanism is used for connecting a compressed air source, and the outlet of the first air storage mechanism is connected with the air inlet of the first relay valve; a first inlet of the master brake valve is connected with a first air storage mechanism, and a first outlet of the master brake valve is connected with a control port of a first relay valve; the air outlet of the first relay valve is connected with a first brake master cylinder through a first regulator and connected with a second brake master cylinder through a second regulator; the first brake master cylinder is connected with a hydraulic brake of a wheel on one side of the first axle and the second axle, and the second brake master cylinder is connected with a hydraulic brake of a wheel on the other side of the first axle and the second axle;
the second pneumatic hydraulic brake circuit includes: the second air storage mechanism, the second relay valve, the third brake master cylinder, the fourth brake master cylinder, the fifth brake master cylinder and the sixth brake master cylinder;
the inlet of the second air storage mechanism is used for connecting a compressed air source, and the outlet of the second air storage mechanism is respectively connected with the air inlet of the second relay valve and the air inlet of the third relay valve; a second inlet of the master brake valve is connected with a second air storage mechanism, and a second outlet of the master brake valve is respectively connected with a control port of a second relay valve and a control port of a third relay valve; the air outlet of the second relay valve is connected with a third brake master cylinder through a third regulator and connected with a fourth brake master cylinder through a fourth regulator; an air outlet of the third relay valve is connected with a fifth brake master cylinder through a fifth regulator and connected with a sixth brake master cylinder through a sixth regulator; the third brake master cylinder and the fourth brake master cylinder are respectively connected with hydraulic brakes in the three-axle wheels, and the fifth brake master cylinder and the sixth brake master cylinder are respectively connected with hydraulic brakes in the four-axle wheels.
Optionally, the pneumatic hydraulic control system further comprises a four-loop protection valve, an inlet of the four-loop protection valve is used for being connected with a compressed air source, and an outlet of the four-loop protection valve is respectively connected with the first pneumatic hydraulic brake loop and the second pneumatic hydraulic brake loop.
Optionally, the brake system further comprises a barometer, and the barometer is connected with the master brake valve in parallel.
Optionally, the first brake of the first wheel of the two-axle wheels includes a first brake cylinder, and the first brake master cylinder is connected with the first brake cylinder.
Optionally, the first regulator, the second regulator, the third regulator, the fourth regulator, the fifth regulator and the sixth regulator are all pneumatic brake pressure regulators used for an electronic control anti-lock braking system ABS.
Optionally, the master brake valve is a mechanical brake valve or an electromagnetic brake valve.
Optionally, the wheel speed sensor is a magneto-electric wheel speed sensor.
Based on the same inventive concept of the foregoing technical scheme, the utility model also provides a four-axis cross-country vehicle, four-axis cross-country vehicle installs the gas cap liquid service braking system among the above-mentioned technical scheme.
Through the utility model discloses an one or more technical scheme, the utility model has following beneficial effect or advantage:
the utility model provides a double-loop air-cap liquid service braking system; the first pneumatic jacking liquid braking circuit controls the wheels of the first axle and the wheels of the second axle to brake, and the second pneumatic jacking liquid braking circuit controls the wheels of the third axle and the wheels of the fourth axle to brake; each brake loop is provided with a relay valve, when the vehicle brakes and the main brake valve is communicated with the loop, compressed air in the air storage mechanism enters the regulator of the corresponding wheel through the relay valve, and enters the main brake cylinder after the pressure of the compressed air is regulated by the regulator, so that the braking of the hydraulic brake in the wheel is controlled; firstly, compared with an air pressure braking system, the introduction of the relay valve can realize the quick charging and quick discharging of compressed air during service braking, thereby achieving the purpose of shortening the braking reaction time; secondly, the introduction of a wheel speed sensor and a regulator enables the air-cap liquid service braking system to have ABS anti-lock function; thirdly, the wheel speed sensor is not arranged on the first axle, and the braking of the wheels on the same side in the first axle and the second axle is controlled by the same regulator and the master braking cylinder, so that the wheels of the first axle act together according to the wheels of the second axle, the braking efficiency and the braking stability of the vehicle during emergency braking are improved, the yaw moment and the steering moment generated by braking on a special road surface are obviously reduced, and the stability of braking is improved; in general, the above brake system has: the brake has the characteristics of small volume, quick response time of a brake system, large braking force and high braking efficiency.
Drawings
Fig. 1 is a schematic view of a dual-circuit pneumatic hydraulic service brake system according to an embodiment of the present invention;
description of reference numerals:
1. a master brake valve; 11. a first inlet; 12. a first outlet; 13. a second inlet; 14. a second outlet; 21. a first gas storage mechanism; 22. a second gas storage mechanism; 31. a first relay valve; 32. a second relay valve; 33. a third relay valve; 41. a first master cylinder; 42. a second master cylinder; 43. a third master cylinder; 44. a fourth master cylinder; 45. a fifth master cylinder; 46. a sixth master cylinder; 51. a first regulator; 52. a second regulator; 53. a third regulator; 54. a fourth regulator; 55. a fifth regulator; 56. a sixth regulator; 61. a first wheel speed sensor; 62. a second wheel speed sensor; 63. a third wheel speed sensor; 64. a fourth wheel speed sensor; 65. a fifth wheel speed sensor; 66. a sixth wheel speed sensor; 7. a four-circuit protection valve; 8. a barometer.
Detailed Description
In order to make the technical personnel in the technical field of the present invention understand the present invention more clearly, the following description is made in detail for the technical solution of the present invention through the specific embodiments with reference to the attached drawings. Throughout the specification, unless otherwise specifically noted, terms used herein should be understood as having meanings as commonly used in the art. Accordingly, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. If there is a conflict, the present specification will control. Unless otherwise specifically stated, various devices and the like used in the present invention are commercially available or can be prepared by an existing method.
In order to solve the problems of complicated structure and overlong braking reaction time of the pneumatic brake used by the existing part of the vehicle types, in an optional embodiment, referring to fig. 1, a pneumatic topping liquid service brake system is provided, a wheel speed sensor is arranged on each wheel of a second bridge, a third bridge and a fourth bridge of the vehicle, and the pneumatic topping liquid service brake system comprises: the brake system comprises a master brake valve 1, a first gas cap liquid brake circuit and a second gas cap liquid brake circuit;
the brake master valve 1 is in communication connection with a vehicle central control system and is used for communicating or disconnecting a first gas cap liquid brake circuit or a second gas cap liquid brake circuit;
the first pneumatic hydraulic brake circuit includes: the first reservoir mechanism 21, the first relay valve 31, the first master cylinder 41, and the second master cylinder 42;
the inlet of the first air storage mechanism 21 is used for connecting a compressed air source, and the outlet is connected with the air inlet of the first relay valve 31; a first inlet 11 of the master brake valve 1 is connected with a first air storage mechanism 21, and a first outlet 12 is connected with a control port of a first relay valve 31; the air outlet of the first relay valve 31 is connected to the first brake master cylinder 41 through a first regulator 51 and connected to the second brake master cylinder 42 through a second regulator 52; the first brake master cylinder 41 is connected with a hydraulic brake of a wheel on one side of the first axle and the second axle, and the second brake master cylinder 42 is connected with a hydraulic brake of a wheel on the other side of the first axle and the second axle;
the second pneumatic hydraulic brake circuit includes: the second reservoir mechanism 22, the second relay valve 32, the third relay valve 33, the third master cylinder 43, the fourth master cylinder 44, the fifth master cylinder 45, and the sixth master cylinder 46;
the inlet of the second air storage mechanism 22 is used for connecting a compressed air source, and the outlet is respectively connected with the air inlet of the second relay valve 32 and the air inlet of the third relay valve 33; the second inlet 13 of the master brake valve 1 is connected with the second air storage mechanism 22, and the second outlet 14 is respectively connected with the control port of the second relay valve 32 and the control port of the third relay valve 33; the outlet port of the second relay valve 32 is connected to the third brake master cylinder 43 through a third regulator 53, and is connected to the fourth brake master cylinder 44 through a fourth regulator 54; an air outlet of the third relay valve 33 is connected to the fifth brake master cylinder 45 through a fifth regulator 55, and connected to the sixth brake master cylinder 46 through a sixth regulator 56; the third master cylinder 43 and the fourth master cylinder 44 are connected to the hydraulic brakes in the three-axle wheels, and the fifth master cylinder 45 and the sixth master cylinder 46 are connected to the hydraulic brakes in the four-axle wheels.
In summary, the above solution provides a dual-circuit pneumatic hydraulic service brake system, applicable to four-axle (with four-axle wheels) vehicles; the front two axles are controlled by a first gas cap liquid braking loop, and the rear two axles are controlled by a second gas cap liquid braking loop. Because the pneumatic-hydraulic service brake system comprises two independent brake circuits, the pneumatic-hydraulic service brake system can use the four-circuit protection valve 7, the inlet of the four-circuit protection valve 7 is used for connecting a compressed air source, and the outlet of the four-circuit protection valve is respectively connected with the first pneumatic-hydraulic brake circuit and the second pneumatic-hydraulic brake circuit. The four-circuit protection valve 7 is used for dividing the compressed gas into two independent circuits to ensure that each circuit works independently and normally.
The function of each component in the braking system is as follows:
the gas storage mechanism: the air storage cylinder is used for storing compressed air;
master brake valve 1: the pneumatic control system is used for controlling the on-off state or flow of the air path in the first pneumatic hydraulic brake circuit or the second pneumatic hydraulic brake circuit;
a relay valve: the air channel is used for quickly charging and discharging compressed air in the air channel;
a regulator: the pressure regulating device is used for regulating the pressure of an air chamber cavity in the master cylinder according to the wheel speed information of the vehicle, controlling the hydraulic output of the master cylinder and realizing the regulation of the braking effect; wheel speed information may be obtained from a wheel speed sensor;
a brake master cylinder: converting the air pressure to a hydraulic output.
Optionally, the pneumatic-cap hydraulic service braking system includes a barometer 8, and the barometer 8 is connected in parallel with the master brake valve 1. The barometer 8 may use a double needle barometer 8.
Optionally, the master cylinder valve 1 is a mechanical brake valve or an electromagnetic brake valve.
The pneumatic-hydraulic service brake system is a brake system which utilizes a pneumatic system to drive a driving force source of a main cylinder of a hydraulic brake system, and has the main advantages of hydraulic braking and pneumatic braking: namely, the brake has small volume, fast system response time and large braking force. On the other hand, because the braking force is large and the braking reaction time is short, when the vehicle runs at a high speed and is emergently braked or is braked on a road surface with a low adhesion coefficient, the wheels are easy to be locked, so that the braking deviation and the slipping are caused, the braking distance is too large, and the safety problem is caused.
In order to solve the problem, a regulator arranged in the brake system determines the pressurization, decompression or pressure maintaining of a chamber cavity in a brake master cylinder according to the wheel rotation speed data so as to realize the function of preventing the wheels from locking. Optionally, the wheel of the first axle is not provided with a wheel speed sensor, and each wheel of the second axle, the third axle and the fourth axle is provided with a wheel speed sensor. The wheel speed sensor can adopt a magnetoelectric type or a current vortex type; when the wheel rotates, the wheel speed sensor and the gear ring move relatively to generate a pulse electric signal of the wheel rotating speed, and the pulse electric signal is sent to the corresponding regulator; the regulator boosts, decompresses and maintains pressure for the brake master cylinder air chamber cavity through the received signal; the specific implementation scheme is as follows:
the first wheel speed sensor 61 and the second wheel speed sensor 62 are disposed on the second axle wheel assembly, the third wheel speed sensor 63 and the fourth wheel speed sensor 64 are disposed on the third axle wheel, and the fifth wheel speed sensor 65 and the sixth wheel speed sensor 66 are disposed on the fourth axle wheel. At the time of braking, the first regulator 51 controls the first master cylinder 41 in accordance with the signal of the first wheel speed sensor 61; the second regulator 52 controls the second master cylinder 42 in accordance with a signal from the second wheel speed sensor 62; the third regulator 53 controls the third brake master cylinder 43 in accordance with a signal from the third wheel speed sensor 63; the fourth regulator 54 controls the fourth master cylinder 44 in accordance with the signal of the fourth wheel speed sensor 64; the fifth regulator 55 controls the fifth master cylinder 45 in accordance with a signal of the fifth wheel speed sensor 65; the sixth regulator 56 controls the sixth master cylinder 46 in accordance with a signal of the sixth wheel speed sensor 66.
Optionally, the first regulator 51, the second regulator 52, the third regulator 53, the fourth regulator 54, the fifth regulator 55, and the sixth regulator 56 are all pneumatic brake pressure regulators used for an electronic control anti-lock brake system ABS.
Through the scheme, the 6S/6M ABS function is configured in the pneumatic hydraulic service braking system, the wheel speed sensors are mounted on the left wheel assembly and the right wheel assembly of the second axle, the third axle and the fourth axle, the wheel speed sensors are not mounted on the wheels of the first axle, and the first regulator 51 and the second regulator 52 indirectly control the wheels of the first axle to act together according to sensor signals on the same side.
The working process of the gas cap liquid service braking system is as follows:
when a driver steps on a brake pedal, the master cylinder 1 connects the first inlet 11 with the first outlet 12 and the second inlet 13 with the second outlet 14 under the control of a vehicle central control system.
For the second pneumatic-ram brake circuit, the compressed air in the second air reservoir 22 firstly enters the second control port in the second relay valve 32 and the third control port in the third relay valve 33 through the second inlet 13 and the second outlet 14 of the master cylinder valve 1, so that the second relay valve 32 is communicated and the third relay valve 33 is communicated; after passing through the second relay valve 32, the compressed air enters the third master cylinder 43 under the regulation of the third regulator 53 and enters the fourth master cylinder 44 under the regulation of the fourth regulator 54; the third brake master cylinder 43 and the fourth brake master cylinder 44 correspond to hydraulic brakes of wheels on two sides of the three-axle respectively; after passing through the third relay valve 33, the compressed air enters the fifth master cylinder 45 under the regulation of the fifth regulator 55, and enters the sixth master cylinder 46 under the regulation of the sixth regulator 56; the fifth master cylinder 45 and the sixth master cylinder 46 respectively correspond to hydraulic brakes of wheels on two sides of a four-axle of the vehicle; specifically, each master cylinder is connected to a brake wheel cylinder in the corresponding hydraulic brake, and the brake wheel cylinders convert hydraulic pressure into thrust force to push the hydraulic brakes to generate braking force.
For the first pneumatic hydraulic brake circuit, at the same time, the compressed air in the first air reservoir mechanism 21 enters the first control port in the first relay valve 31 through the first inlet 11 and the first outlet 12 to communicate the first relay valve 31; after passing through the first relay valve 31, the compressed air enters the first master cylinder 41 under the regulation of the first regulator 51 and enters the second master cylinder 42 under the regulation of the second regulator 52; the braking of the wheels of the first axle is indirectly controlled by the action of a regulator and a master cylinder corresponding to the wheels on the same side of the second axle; that is, the first master cylinder 41 is connected to the hydraulic brakes of both wheels on one side of the first and second axles at the same time, and the second master cylinder 42 is connected to the hydraulic brakes of both wheels on the other side of the first and second axles at the same time.
Through the reasonable layout of the three relay valves and other components, the compressed air can be quickly charged and discharged in the traveling braking process, and the purpose of shortening the braking reaction time is achieved.
In general, the advantages of the pneumatic hydraulic service brake system are as follows:
(1) the dual-loop air-cap liquid service braking system is realized, and the dual-loop air-cap liquid service braking system has the advantages of hydraulic braking and air pressure braking: the brake has small volume, quick system response time and large braking force, and the scheme can reduce the braking response time and improve the braking efficiency;
(2) the pneumatic-hydraulic brake system is matched with an anti-lock brake system, wheels can be prevented from being locked when a vehicle is emergently braked during high-speed running or the vehicle is braked on a road surface with low adhesion coefficient, the braking efficiency and the braking stability of the vehicle during emergency braking are improved, meanwhile, the yaw moment and the steering moment generated by braking on a special road surface can be obviously reduced, and the braking stability is improved.
(3) The air pressure of the air inlet of the master cylinder is adjusted by the regulator to control the hydraulic output of the master cylinder, so that the system principle is optimized on the premise of meeting the use requirement, and the complexity and the cost of the system are reduced.
The pneumatic-cap hydraulic service braking system can be applied to freight vehicles, passenger cars and off-road vehicles, and is particularly suitable for 4-axle super-heavy special off-road vehicles.
Based on the same inventive concept of the previous embodiment, in a further alternative embodiment, a four-axle off-road vehicle is provided, and the four-axle off-road vehicle is provided with the pneumatic hydraulic service brake system in the technical scheme.
Through the utility model discloses an one or more technical scheme, the utility model has following beneficial effect or advantage:
the utility model provides a double-loop air-cap liquid service braking system; the first pneumatic jacking liquid braking circuit controls the wheels of the first axle and the wheels of the second axle to brake, and the second pneumatic jacking liquid braking circuit controls the wheels of the third axle and the wheels of the fourth axle to brake; each brake loop is provided with a relay valve, when the vehicle brakes and the main brake valve is communicated with the loop, compressed air in the air storage mechanism enters the regulator of the corresponding wheel through the relay valve, and enters the main brake cylinder after the pressure of the compressed air is regulated by the regulator, so that the braking of the hydraulic brake in the wheel is controlled; firstly, compared with an air pressure braking system, the introduction of the relay valve can realize the quick charging and quick discharging of compressed air during service braking, thereby achieving the purpose of shortening the braking reaction time; secondly, the introduction of a wheel speed sensor and a regulator enables the air-cap liquid service braking system to have ABS anti-lock function; thirdly, the wheel speed sensor is not arranged on the first axle, and the braking of the wheels on the same side in the first axle and the second axle is controlled by the same regulator and the master braking cylinder, so that the wheels of the first axle act together according to the wheels of the second axle, the braking efficiency and the braking stability of the vehicle during emergency braking are improved, the yaw moment and the steering moment generated by braking on a special road surface are obviously reduced, and the stability of braking is improved; in general, the above brake system has: the brake has the characteristics of small volume, quick response time of a brake system, large braking force and high braking efficiency.
While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. A gas cap liquid service braking system is characterized in that each wheel of a second axle, a third axle and a fourth axle of a vehicle is provided with a wheel speed sensor; the pneumatic hydraulic service brake system comprises: the brake system comprises a master brake valve, a first gas cap liquid brake circuit and a second gas cap liquid brake circuit;
the brake master valve is in communication connection with a vehicle central control system and is used for communicating or disconnecting the first gas cap liquid brake circuit or the second gas cap liquid brake circuit;
the first pneumatic hydraulic brake circuit includes: the brake system comprises a first air storage mechanism, a first relay valve, a first brake master cylinder and a second brake master cylinder;
the inlet of the first air storage mechanism is used for connecting a compressed air source, and the outlet of the first air storage mechanism is connected with the air inlet of the first relay valve; a first inlet of the master brake valve is connected with the first air storage mechanism, and a first outlet of the master brake valve is connected with a control port of the first relay valve; an air outlet of the first relay valve is connected with the first brake master cylinder through a first regulator and connected with the second brake master cylinder through a second regulator; the first brake master cylinder is connected with a hydraulic brake of a wheel on one side of the first axle and the second axle, and the second brake master cylinder is connected with a hydraulic brake of a wheel on the other side of the first axle and the second axle;
the second pneumatic hydraulic brake circuit includes: the second air storage mechanism, the second relay valve, the third brake master cylinder, the fourth brake master cylinder, the fifth brake master cylinder and the sixth brake master cylinder;
the inlet of the second air storage mechanism is used for being connected with the compressed air source, and the outlet of the second air storage mechanism is respectively connected with the air inlet of the second relay valve and the air inlet of the third relay valve; a second inlet of the master brake valve is connected with the second air storage mechanism, and a second outlet of the master brake valve is respectively connected with a control port of the second relay valve and a control port of the third relay valve; the air outlet of the second relay valve is connected with the third brake master cylinder through a third regulator and connected with the fourth brake master cylinder through a fourth regulator; an air outlet of the third relay valve is connected with the fifth brake master cylinder through a fifth regulator and connected with the sixth brake master cylinder through a sixth regulator; the third master cylinder and the fourth master cylinder are respectively connected with hydraulic brakes in three-axle wheels, and the fifth master cylinder and the sixth master cylinder are respectively connected with hydraulic brakes in four-axle wheels.
2. The pneumatic hydraulic service brake system of claim 1, further comprising a four-circuit protection valve having an inlet for connection to the compressed air source and an outlet for connection to the first pneumatic hydraulic brake circuit and the second pneumatic hydraulic brake circuit, respectively.
3. The pneumatic top fluid service brake system according to claim 1, further comprising a barometer, said barometer being connected in parallel with said master cylinder valve.
4. The pneumatic hydraulic service brake system according to claim 1, wherein the first brake of a first wheel of the two axle wheels comprises a first wheel cylinder, and the first master cylinder is connected to the first wheel cylinder.
5. The pneumatic hydraulic service brake system according to claim 1, wherein the first regulator, the second regulator, the third regulator, the fourth regulator, the fifth regulator, and the sixth regulator are all pneumatic brake pressure regulators for an electronically controlled Antilock Brake System (ABS).
6. The pneumatic hydraulic service brake system according to claim 1, wherein the master cylinder valve is a mechanical brake valve or an electromagnetic brake valve.
7. The pneumatic hydraulic service brake system of claim 1, wherein the wheel speed sensor is a magneto-electric wheel speed sensor.
8. A four-axle off-road vehicle, characterized in that it is equipped with a pneumatic hydraulic service brake system according to any of claims 1-7.
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| CN202121003154.8U CN215154554U (en) | 2021-05-10 | 2021-05-10 | Gas cap liquid service braking system and four-axis cross-country vehicle |
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| CN202121003154.8U CN215154554U (en) | 2021-05-10 | 2021-05-10 | Gas cap liquid service braking system and four-axis cross-country vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115416633A (en) * | 2022-09-14 | 2022-12-02 | 湖北三江航天万山特种车辆有限公司 | Vehicle line control gas cap liquid braking system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115416633A (en) * | 2022-09-14 | 2022-12-02 | 湖北三江航天万山特种车辆有限公司 | Vehicle line control gas cap liquid braking system |
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