CN110001612B - Vehicle and air brake system thereof - Google Patents
Vehicle and air brake system thereof Download PDFInfo
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- CN110001612B CN110001612B CN201810012390.2A CN201810012390A CN110001612B CN 110001612 B CN110001612 B CN 110001612B CN 201810012390 A CN201810012390 A CN 201810012390A CN 110001612 B CN110001612 B CN 110001612B
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- 230000008929 regeneration Effects 0.000 claims description 10
- 238000011069 regeneration method Methods 0.000 claims description 10
- 239000002274 desiccant Substances 0.000 claims description 8
- 230000001172 regenerating effect Effects 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 101001121408 Homo sapiens L-amino-acid oxidase Proteins 0.000 description 1
- 102100026388 L-amino-acid oxidase Human genes 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- 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
- B60T13/24—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 the fluid being gaseous
- B60T13/26—Compressed-air systems
- B60T13/40—Compressed-air systems indirect, i.e. compressed air booster units indirect systems
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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
- B60T13/683—Electrical control in fluid-pressure brake systems by electrically-controlled valves in pneumatic systems or parts thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/002—Air treatment devices
- B60T17/004—Draining and drying devices
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
Description
技术领域Technical Field
本发明涉及车辆领域，特别涉及一种车辆及其气制动系统。The present invention relates to the field of vehicles, and in particular to a vehicle and an air brake system thereof.
背景技术Background Art
随着人们越来越重视环境问题，新能源车辆得到不断发展，气制动系统在新能源车辆上的应用也越来越普遍。采用气制动系统的新能源车辆通常采用电动空压机来提供气源。但是目前多数装有电动空压机的车辆，均未设置背压卸载系统。若没有设置背压卸载系统，则当驾驶员临时停车或收工回家时，车辆熄火，电动空压机突然停止运转，而整车气压还未达到卸荷压力，干燥器不卸荷；此时，在干燥器至电动空压机之间的管路内存在高压气体，当驾驶员再次启动车辆，点火钥匙打到ON档时，电动空压机再次启动，而此时电动空压机是负载启动，可能造成电动空压机无法正常启动甚至造成烧机现象，从而无法对制动气路正常供气，使车辆无法起步或制动性能减弱，严重影响行车安全及电动空压机使用寿命。As people pay more and more attention to environmental issues, new energy vehicles are constantly developing, and the application of air brake systems in new energy vehicles is becoming more and more common. New energy vehicles using air brake systems usually use electric air compressors to provide air sources. However, most vehicles equipped with electric air compressors are not equipped with back pressure unloading systems. If there is no back pressure unloading system, when the driver temporarily stops or goes home after work, the vehicle is turned off, the electric air compressor suddenly stops running, and the air pressure of the whole vehicle has not reached the unloading pressure, and the dryer does not unload; at this time, there is high-pressure gas in the pipeline between the dryer and the electric air compressor. When the driver starts the vehicle again and the ignition key is turned to the ON position, the electric air compressor starts again. At this time, the electric air compressor is started under load, which may cause the electric air compressor to fail to start normally or even cause burning, so that the brake air circuit cannot be supplied with air normally, making the vehicle unable to start or the braking performance weakened, seriously affecting driving safety and the service life of the electric air compressor.
此外，目前也有少数新能源车辆采用背压卸载系统，但该背压卸载系统的放气阀是由单独的控制模块或控制程序控制开启，其存在一定时间的延时，并且控制方式非常复杂，极大地增加了车辆的设计和采购成本。In addition, there are currently a few new energy vehicles that use a back pressure unloading system, but the air release valve of the back pressure unloading system is opened by a separate control module or control program, which has a certain time delay and the control method is very complicated, greatly increasing the design and procurement costs of the vehicle.
发明内容Summary of the invention
为了解决上述问题，本发明提供了一种能够有效避免电动空压机带载启动且结构简单易于实现的车辆的气制动系统。In order to solve the above problems, the present invention provides an air brake system for a vehicle which can effectively prevent the electric air compressor from starting under load and has a simple structure and is easy to implement.
本发明另提供一种车辆，该车辆包括上述的车辆的气制动系统。The present invention further provides a vehicle, which comprises the above-mentioned vehicle air brake system.
本发明提供一种车辆的气制动系统，包括：The present invention provides an air brake system for a vehicle, comprising:
空压机，用于产生压缩气体；Air compressor, used to produce compressed gas;
干燥器，所述干燥器的进气口通过管路与所述空压机的出气口连通；A dryer, wherein the air inlet of the dryer is connected to the air outlet of the air compressor through a pipeline;
四回路保护阀，所述四回路保护阀的进气口与所述干燥器的出气口连通；A four-circuit protection valve, wherein the air inlet of the four-circuit protection valve is connected to the air outlet of the dryer;
四个回路储气筒，所述四个回路储气筒分别与所述四回路保护阀的四个出气口连通；Four circuit air storage cylinders, the four circuit air storage cylinders are respectively connected to the four air outlets of the four-circuit protection valve;
电磁阀，所述电磁阀包括出气口、排气口和进气口，所述电磁阀的出气口连通所述干燥器和所述空压机之间的管路，所述电磁阀的进气口被封堵住，所述电磁阀的线圈与车辆的点火开关相连；A solenoid valve, the solenoid valve comprising an air outlet, an exhaust port and an air inlet, the air outlet of the solenoid valve being connected to a pipeline between the dryer and the air compressor, the air inlet of the solenoid valve being blocked, and the coil of the solenoid valve being connected to an ignition switch of the vehicle;
当点火开关启动时，所述电磁阀的线圈通电，所述电磁阀的出气口和进气口相通，所述排气口关闭，所述空压机产生的压缩气体直接通向所述干燥器；当点火开关关闭时，所述电磁阀断电，所述电磁阀的排气口和出气口相通，且所述排气口打开，所述干燥器和所述空压机之间的管路内的高压气体从所述排气口排出。When the ignition switch is turned on, the coil of the solenoid valve is energized, the air outlet and air inlet of the solenoid valve are connected, the exhaust port is closed, and the compressed gas generated by the air compressor is directly directed to the dryer; when the ignition switch is turned off, the solenoid valve is de-energized, the exhaust port and air outlet of the solenoid valve are connected, and the exhaust port is opened, and the high-pressure gas in the pipeline between the dryer and the air compressor is discharged from the exhaust port.
进一步，所述电磁阀为两位三通电磁阀。Furthermore, the solenoid valve is a two-position three-way solenoid valve.
进一步，所述空压机为电动空压机，所述空压机包括电动机和由所述电动机驱动的空压机主体。Furthermore, the air compressor is an electric air compressor, and the air compressor includes an electric motor and an air compressor body driven by the electric motor.
进一步，所述干燥器设置有控制口和卸荷阀，所述控制口处装有压力开关，所述压力开关与所述电动机电连接，当系统压力达到试一试干燥器的卸荷压力时，所述干燥器卸荷阀打开，所述控制口的压力上升，压力开关接通，控制所述电动机停止运转，且所述干燥器和所述空压机之间的管路内的高压气体从所述干燥器的排气口排出。Furthermore, the dryer is provided with a control port and a unloading valve. The control port is provided with a pressure switch, and the pressure switch is electrically connected to the motor. When the system pressure reaches the unloading pressure of the dryer, the unloading valve of the dryer opens, the pressure of the control port rises, the pressure switch is turned on, the motor is controlled to stop running, and the high-pressure gas in the pipeline between the dryer and the air compressor is discharged from the exhaust port of the dryer.
进一步，所述空压机的出气口处的管路上连接有三通接头，所述三通接头的进口连通所述空压机的出气口，所述三通接头的两个出口分别连接所述电磁阀的出气口和所述干燥器的进气口。Furthermore, a three-way joint is connected to the pipeline at the air outlet of the air compressor, the inlet of the three-way joint is connected to the air outlet of the air compressor, and the two outlets of the three-way joint are respectively connected to the air outlet of the solenoid valve and the air inlet of the dryer.
进一步，所述气制动系统还包括再生储气筒，所述再生储气筒通过管路与所述干燥器的再生气体进口相连通，当系统压力达到卸荷压力干燥器卸荷时，所述再生储气筒内的气体对干燥器的干燥剂进行反吹，将所述集聚在干燥剂上的水分和油污从所述干燥器的排气口排出，实现干燥剂再生。Furthermore, the air brake system also includes a regeneration air cylinder, which is connected to the regeneration gas inlet of the dryer through a pipeline. When the system pressure reaches the unloading pressure and the dryer is unloaded, the gas in the regeneration air cylinder back-blows the desiccant in the dryer, and the moisture and oil accumulated on the desiccant are discharged from the exhaust port of the dryer, thereby realizing desiccant regeneration.
进一步，所述气制动系统还包括制动控制阀和制动气室，所述制动控制阀与车辆的制动踏板相连，所述制动气室在所述制动控制阀的控制下与对应的回路储气筒连通。Furthermore, the air brake system also includes a brake control valve and a brake air chamber, the brake control valve is connected to a brake pedal of the vehicle, and the brake air chamber is connected to a corresponding circuit air reservoir under the control of the brake control valve.
本发明另提供一种车辆，包括驾驶室、行走轮和上述的车辆的气制动系统。The present invention further provides a vehicle, comprising a cab, running wheels and the air brake system of the above-mentioned vehicle.
进一步，所述车辆为新能源车辆。Furthermore, the vehicle is a new energy vehicle.
本发明的实施例提供的技术方案可以包括以下有益效果：The technical solution provided by the embodiments of the present invention may have the following beneficial effects:
本发明的车辆的气制动系统包括空压机、干燥器、四回路保护阀、四个回路储气筒和电磁阀。空压机用于产生压缩气体，干燥器的进气口通过管路与空压机的出气口连通，四回路保护阀的进气口与干燥器的出气口连通，四个回路储气筒分别与四回路保护阀的四个出气口连通，电磁阀包括出气口、排气口和进气口，电磁阀的出气口连通干燥器和空压机之间的管路，电磁阀的进气口被封堵住，电磁阀的线圈与车辆的点火开关相连。当点火开关启动时，电磁阀的线圈通电，电磁阀的出气口和进气口相通，排气口关闭，空压机产生的压缩气体直接通向干燥器；当点火开关关闭时(即，当车辆熄火时)，电磁阀断电，电磁阀的排气口和出气口相通，且排气口打开，干燥器和空压机之间的管路内的高压气体从排气口排出。由于本发明在干燥器和空压机之间的管路上设置有电磁阀，且该电磁阀的线圈与车辆的点火开关相连，因此，当点火开关关闭时，电磁阀断电，电磁阀的排气口和出气口相通，且排气口打开，干燥器和空压机之间的管路内的高压气体从该排气口排出。如此，可有效避免空压机带载启动，避免空压机烧机，有效提升空压机的使用寿命，保证车辆的行驶安全，并且采用的卸载方式简单，易于实现。The air brake system of the vehicle of the present invention comprises an air compressor, a dryer, a four-circuit protection valve, four-circuit air storage cylinders and a solenoid valve. The air compressor is used to generate compressed gas, the air inlet of the dryer is connected to the air outlet of the air compressor through a pipeline, the air inlet of the four-circuit protection valve is connected to the air outlet of the dryer, the four-circuit air storage cylinders are respectively connected to the four air outlets of the four-circuit protection valve, the solenoid valve comprises an air outlet, an exhaust port and an air inlet, the air outlet of the solenoid valve is connected to the pipeline between the dryer and the air compressor, the air inlet of the solenoid valve is blocked, and the coil of the solenoid valve is connected to the ignition switch of the vehicle. When the ignition switch is started, the coil of the solenoid valve is energized, the air outlet of the solenoid valve is connected to the air inlet, the exhaust port is closed, and the compressed gas generated by the air compressor is directly connected to the dryer; when the ignition switch is turned off (that is, when the vehicle is turned off), the solenoid valve is de-energized, the exhaust port of the solenoid valve is connected to the air outlet, and the exhaust port is opened, and the high-pressure gas in the pipeline between the dryer and the air compressor is discharged from the exhaust port. Since the present invention provides a solenoid valve on the pipeline between the dryer and the air compressor, and the coil of the solenoid valve is connected to the ignition switch of the vehicle, when the ignition switch is turned off, the solenoid valve is powered off, the exhaust port and the air outlet of the solenoid valve are connected, and the exhaust port is opened, and the high-pressure gas in the pipeline between the dryer and the air compressor is discharged from the exhaust port. In this way, the air compressor can be effectively prevented from starting with load, the air compressor can be prevented from burning, the service life of the air compressor can be effectively improved, the driving safety of the vehicle can be ensured, and the unloading method adopted is simple and easy to implement.
本发明的车辆因采用上述车辆的气制动系统能够有效避免空压机带载启动，避免空压机烧机，有效提升空压机的使用寿命，保证车辆的行驶安全。The vehicle of the present invention can effectively avoid the air compressor from starting under load and burning out due to the adoption of the air brake system of the above-mentioned vehicle, thereby effectively improving the service life of the air compressor and ensuring the driving safety of the vehicle.
应当理解的是，以上的一般描述和后文的细节描述仅是示例性的，并不能限制本发明。It is to be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the invention.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本发明的实施例，并于说明书一起用于解释本发明的原理。The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.
图1为本发明的车辆的气制动系统的空压机卸载装置的结构示意图。FIG. 1 is a schematic structural diagram of an air compressor unloading device of an air brake system of a vehicle according to the present invention.
具体实施方式DETAILED DESCRIPTION
为了进一步说明本发明的原理和结构，现结合附图对本发明的优选实施例进行详细说明。In order to further illustrate the principle and structure of the present invention, preferred embodiments of the present invention are now described in detail with reference to the accompanying drawings.
如图1所示，其为本发明的车辆的气制动系统的空压机卸载装置的结构示意图。本发明的车辆的气制动系统包括空压机卸载装置10，该空压机卸载装置10包括空压机11、干燥器12、四回路保护阀13、四个回路储气筒141、142、143、144以及电磁阀15。空压机11用于产生压缩气体，其出气口111通过管路18与干燥器12的进气口121相连通。四回路保护阀13的进气口135通过管路与干燥器12的出气口122相连通。四回路保护阀13的四个出气口131、132、133、134分别与四个回路储气筒141、142、143、144连通。电磁阀15设置在干燥器12和空压机15之间的管路18上。As shown in FIG1 , it is a schematic diagram of the structure of the air compressor unloading device of the air brake system of the vehicle of the present invention. The air brake system of the vehicle of the present invention includes an air compressor unloading device 10, which includes an air compressor 11, a dryer 12, a four-circuit protection valve 13, four-circuit air storage cylinders 141, 142, 143, 144 and a solenoid valve 15. The air compressor 11 is used to generate compressed gas, and its air outlet 111 is connected to the air inlet 121 of the dryer 12 through a pipeline 18. The air inlet 135 of the four-circuit protection valve 13 is connected to the air outlet 122 of the dryer 12 through a pipeline. The four air outlets 131, 132, 133, 134 of the four-circuit protection valve 13 are respectively connected to the four-circuit air storage cylinders 141, 142, 143, 144. The solenoid valve 15 is arranged on the pipeline 18 between the dryer 12 and the air compressor 15.
电磁阀15包括出气口153、排气口152和进气口151，出气口153连通干燥器12和空压机11之间的管路18，进气口151用堵头封闭，电磁阀15的电线连接至车辆的点火开关，使得电磁阀15的线圈能够与车辆的点火开关相连。当点火开关启动时，电磁阀15的线圈通电，电磁阀15的出气口153和进气口151连通，排气口152关闭，空压机11启动，空压机11产生的压缩气体直接通向干燥器12，干燥器12干燥后的压缩气体进入回路储气筒141、142、143、144，为车辆的制动气路提供气源；当车辆熄火时，电磁阀15断电，排气口152和出气口153相通，排气口152打开，干燥器12和空压机11之间的管路18内的高压气体从排气口152排出。当车辆再次启动时，空压机11处于无负载状态，有效保证空压机11正常启动，保证行车安全，延长空压机11的使用寿命。The solenoid valve 15 includes an air outlet 153, an exhaust port 152 and an air inlet 151. The air outlet 153 is connected to the pipeline 18 between the dryer 12 and the air compressor 11. The air inlet 151 is closed with a plug. The wires of the solenoid valve 15 are connected to the ignition switch of the vehicle, so that the coil of the solenoid valve 15 can be connected to the ignition switch of the vehicle. When the ignition switch is turned on, the coil of the solenoid valve 15 is energized, the outlet 153 of the solenoid valve 15 is connected to the air inlet 151, the exhaust port 152 is closed, the air compressor 11 is started, and the compressed gas generated by the air compressor 11 is directly passed to the dryer 12. The compressed gas dried by the dryer 12 enters the loop air storage cylinders 141, 142, 143, and 144 to provide an air source for the vehicle's brake air circuit; when the vehicle is turned off, the solenoid valve 15 is de-energized, the exhaust port 152 is connected to the outlet 153, the exhaust port 152 is opened, and the high-pressure gas in the pipeline 18 between the dryer 12 and the air compressor 11 is discharged from the exhaust port 152. When the vehicle is started again, the air compressor 11 is in a no-load state, which effectively ensures the normal start-up of the air compressor 11, ensures driving safety, and extends the service life of the air compressor 11.
电磁阀15可以是两位三通电磁阀。The solenoid valve 15 may be a two-position three-way solenoid valve.
连接空压机11的出气口111的管路18上连接有三通接头(未图示)，该三通接头的进口连通空压机11的出气口111，该三通接头的两个出口分别连接电磁阀15的出气口153和干燥器12的进气口121。A three-way joint (not shown) is connected to the pipe 18 connected to the air outlet 111 of the air compressor 11, the inlet of the three-way joint is connected to the air outlet 111 of the air compressor 11, and the two outlets of the three-way joint are respectively connected to the air outlet 153 of the solenoid valve 15 and the air inlet 121 of the dryer 12.
空压机11可为电动空压机，该空压机11包括电动机和由电动机驱动的空压机主体，电动机转动带动空压机主体工作，空压机主体将电动机的旋转机械能转换为气体的压力能，实现对气体的压缩和增压。The air compressor 11 may be an electric air compressor, which includes an electric motor and an air compressor body driven by the electric motor. The rotation of the electric motor drives the air compressor body to work, and the air compressor body converts the rotational mechanical energy of the electric motor into pressure energy of the gas to achieve compression and pressurization of the gas.
干燥器12还设置有控制口123和卸荷阀(内部集成该卸载阀，未图示)，该控制口123处设置有压力开关16，其用于检测干燥器12控制口123处的气体压力。压力开关16与空压机11的电动机电连接，当系统压力达到干燥器12的卸荷压力时，卸荷阀打开，控制口123压力上升，压力开关16接通，信号反馈至空压机11的电动机，并控制电动机停止运转，从而空压机11停止工作，节约能源。同时，空压机11与干燥器12之间的管路18上的高压气体从干燥器12的排气口排出，保证车辆行驶时空压机11无负载启动，提升空压机11的使用寿命。The dryer 12 is also provided with a control port 123 and a relief valve (the relief valve is integrated internally, not shown). The control port 123 is provided with a pressure switch 16, which is used to detect the gas pressure at the control port 123 of the dryer 12. The pressure switch 16 is electrically connected to the motor of the air compressor 11. When the system pressure reaches the relief pressure of the dryer 12, the relief valve opens, the pressure at the control port 123 rises, the pressure switch 16 is turned on, and the signal is fed back to the motor of the air compressor 11, and the motor is controlled to stop running, so that the air compressor 11 stops working, saving energy. At the same time, the high-pressure gas on the pipeline 18 between the air compressor 11 and the dryer 12 is discharged from the exhaust port of the dryer 12, ensuring that the air compressor 11 starts without load when the vehicle is driving, thereby improving the service life of the air compressor 11.
空压机卸载装置10还包括再生储气筒17，再生储气筒17通过管路与干燥器12的再生气体进口124相连通，再生储气筒17内的气体通过该再生气体进口124将集聚在干燥剂的水分和油污等从干燥器12的排气口排出，从而实现干燥剂再生。The air compressor unloading device 10 also includes a regeneration air cylinder 17, which is connected to the regeneration gas inlet 124 of the dryer 12 through a pipeline. The gas in the regeneration air cylinder 17 passes through the regeneration gas inlet 124 to discharge the moisture and oil accumulated in the desiccant from the exhaust port of the dryer 12, thereby realizing the regeneration of the desiccant.
四个回路储气筒141、142、143、144可以分别对应为气制动系统的辅助储气筒、后桥制动储气筒、前桥制动储气筒和驻车储气筒。The four circuit air reservoirs 141 , 142 , 143 , 144 may correspond to the auxiliary air reservoir, the rear axle brake air reservoir, the front axle brake air reservoir, and the parking air reservoir of the air brake system, respectively.
气制动系统还包括制动控制阀和制动气室，制动控制阀与车辆的制动踏板相连，制动气室通过制动控制阀与对应的回路储气筒(例如，前车轮的制动气室与前桥制动储气筒相通，后车轮的制动气室与后桥制动储气筒相通)连通。当制动踏板踩下时，制动控制阀打开，回路储气筒中的压缩气体进入该制动气室中，推动制动气室的膜片移动，从而控制车轮制动器实现制动。The air brake system also includes a brake control valve and a brake air chamber. The brake control valve is connected to the brake pedal of the vehicle. The brake air chamber is connected to the corresponding circuit air reservoir (for example, the brake air chamber of the front wheel is connected to the front axle brake air reservoir, and the brake air chamber of the rear wheel is connected to the rear axle brake air reservoir) through the brake control valve. When the brake pedal is stepped on, the brake control valve opens, and the compressed gas in the circuit air reservoir enters the brake air chamber, pushing the diaphragm of the brake air chamber to move, thereby controlling the wheel brake to achieve braking.
综上，由于本发明在干燥器和空压机之间的管路上设置有电磁阀，且该电磁阀的线圈与车辆的点火开关相连，因此，当点火开关关闭时，电磁阀断电，电磁阀的排气口和出气口相通，且排气口打开，干燥器和空压机之间的管路内的高压气体从排气口排出。如此，可有效避免空压机带载启动，避免空压机烧机，有效提升空压机的使用寿命，保证车辆的行驶安全。In summary, since the present invention is provided with a solenoid valve on the pipeline between the dryer and the air compressor, and the coil of the solenoid valve is connected to the ignition switch of the vehicle, when the ignition switch is turned off, the solenoid valve is powered off, the exhaust port and the air outlet of the solenoid valve are connected, and the exhaust port is opened, and the high-pressure gas in the pipeline between the dryer and the air compressor is discharged from the exhaust port. In this way, the air compressor can be effectively prevented from starting with load, the air compressor can be prevented from burning, the service life of the air compressor can be effectively improved, and the driving safety of the vehicle can be ensured.
本发明另提供一种车辆，该车辆包括驾驶室、行走轮和上述的车辆的气制动系统。优选的，该车辆可以是新能源车辆。该新能源车辆可以是以燃料电池为能源供给的车辆。The present invention further provides a vehicle, which includes a cab, running wheels and the above-mentioned vehicle air brake system. Preferably, the vehicle can be a new energy vehicle. The new energy vehicle can be a vehicle powered by a fuel cell.
以上仅为本发明的较佳可行实施例，并非限制本发明的保护范围，凡运用本发明说明书及附图内容所作出的等效结构变化，均包含在本发明的保护范围内。The above are only preferred feasible embodiments of the present invention and are not intended to limit the protection scope of the present invention. All equivalent structural changes made using the contents of the present invention description and drawings are included in the protection scope of the present invention.
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