CN109532803B - Vehicle brake device - Google Patents

Vehicle brake device Download PDF

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Publication number
CN109532803B
CN109532803B CN201811573192.XA CN201811573192A CN109532803B CN 109532803 B CN109532803 B CN 109532803B CN 201811573192 A CN201811573192 A CN 201811573192A CN 109532803 B CN109532803 B CN 109532803B
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CN
China
Prior art keywords
electromagnetic valve
communicated
terminal
axle brake
valve
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Application number
CN201811573192.XA
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Chinese (zh)
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CN109532803A (en
Inventor
袁菊花
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Linyi Chuangye Technology Service Co ltd
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Changzhou Aishangxue Education Technology Co ltd
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Application filed by Changzhou Aishangxue Education Technology Co ltd filed Critical Changzhou Aishangxue Education Technology Co ltd
Priority to CN202110037368.5A priority Critical patent/CN112810593B/en
Priority to CN202110037377.4A priority patent/CN112810594B/en
Priority to CN201811573192.XA priority patent/CN109532803B/en
Publication of CN109532803A publication Critical patent/CN109532803A/en
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Publication of CN109532803B publication Critical patent/CN109532803B/en
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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
    • 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
    • B60T13/12—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 liquid
    • 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
    • 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
    • B60T15/04—Driver's valves
    • 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
    • B60T17/18—Safety devices; Monitoring

Abstract

A braking device of a vehicle comprises a front axle brake, a rear axle brake, an energy accumulator, a foot valve, a first electromagnetic valve, a second electromagnetic valve, a pressure switch, a proximity switch, magnetic steel, a main controller, a first joint, a second joint, a hydraulic rubber pipe, a third electromagnetic valve and a third joint; an execution port of the foot valve is communicated with an oil inlet of the first electromagnetic valve; an execution port of the first electromagnetic valve is respectively communicated with an oil inlet of the second electromagnetic valve, a control port of the pressure switch and an oil inlet of the third electromagnetic valve through a hydraulic rubber pipe, and an execution port of the first electromagnetic valve is respectively communicated with the front axle brake and the rear axle brake; an execution port of the second electromagnetic valve is communicated with the front axle brake; an execution port of the third electromagnetic valve is communicated with the rear axle brake; the terminal of the first electromagnetic valve, the terminal of the second electromagnetic valve, the terminal of the third electromagnetic valve, the pressure switch and the proximity switch are electrically connected or in wireless communication with the main controller. The invention can ensure that the vehicle is not easy to have accidents and has high safety.

Description

Vehicle brake device
Technical Field
The present invention relates to a vehicle, and more particularly, to a vehicle brake device.
Background
As shown in fig. 5, the braking device of the vehicle in the prior art includes a front axle brake 50, a rear axle brake 51, an accumulator 52 and a foot valve 53, wherein the front axle brake 50 and the rear axle brake 51 are wet brakes, an oil inlet P of the foot valve 53 is communicated with the accumulator 52, and an actuating port a of the foot valve 53 is respectively communicated with the front axle brake 50 and the rear axle brake 51. When the pressure of the accumulator 52 drops, the accumulator 52 is charged by a hydraulic pump on the vehicle through a charge valve. When the brake pedal 53-1 of the foot valve 53 is depressed for braking, the oil inlet P of the foot valve 53 is communicated with the implement port a, and the pressure oil in the accumulator 52 reaches the front axle brake 50 and the rear axle brake 51 through the foot valve 53, thereby braking the front wheels and the rear wheels. The foot valve 53 of the braking device is communicated with the front axle brake 50 and the rear axle brake 51 through the brake hydraulic hose 54, and the brake hydraulic hose 54 between the foot valve 53 and the front axle brake 50 and the rear axle brake 51 is easy to break, so that when the brake pedal 53-1 of the foot valve 53 is stepped to brake, pressure oil in the energy accumulator 52 overflows from the broken brake hydraulic hose 54 after passing through the foot valve 53, and the pressure oil cannot reach the front axle brake 50 and the rear axle brake 51, so that the front axle brake 50 and the rear axle brake 51 are not braked any more, accidents are easy to happen, and the safety is not high.
Disclosure of Invention
The invention aims to provide a vehicle brake device which is not easy to cause accidents and has high safety.
In order to achieve the purpose, the invention adopts the following technical scheme: a brake apparatus of a vehicle includes a front axle brake, a rear axle brake, an accumulator, and a foot valve; an oil inlet P of the foot valve is communicated with the energy accumulator; the hydraulic hose also comprises a first electromagnetic valve, a second electromagnetic valve, a pressure switch, a proximity switch, magnetic steel, a main controller, a first joint, a second joint, a hydraulic hose, a third electromagnetic valve and a third joint; an execution port A of the foot valve is communicated with an oil inlet P of the first electromagnetic valve through a first joint; an execution port A of the first electromagnetic valve is respectively communicated with an oil inlet P of the second electromagnetic valve, a control port K of the pressure switch and an oil inlet P of the third electromagnetic valve through a hydraulic rubber pipe, and an execution port B of the first electromagnetic valve is respectively communicated with a front axle brake and a rear axle brake; when pressure oil is introduced into a control port K of the pressure switch, the pressure switch is switched on; an execution port A of the second electromagnetic valve is communicated with a front axle brake through a second joint; an execution port A of the third electromagnetic valve is communicated with the rear axle brake through a third joint; the magnetic steel corresponds to the proximity switch; the terminal K of the first electromagnetic valve, the terminal K of the second electromagnetic valve, the terminal K of the third electromagnetic valve, the pressure switch and the proximity switch are electrically connected or wirelessly communicated with the main controller; when the proximity switch is switched off and the pressure switch is switched off, the main controller controls a terminal K of the first electromagnetic valve, a terminal K of the second electromagnetic valve and a terminal K of the third electromagnetic valve to be electrified, at the moment, an oil inlet P of the first electromagnetic valve is communicated with the execution port B, the oil inlet P of the second electromagnetic valve is not communicated with the execution port A, and the oil inlet P of the third electromagnetic valve is not communicated with the execution port A; when the proximity switch is switched on, the main controller controls the terminal K of the first electromagnetic valve, the terminal K of the second electromagnetic valve and the terminal K of the third electromagnetic valve to lose power.
The invention has the following positive effects: (1) the execution port A of the foot valve is communicated with the oil inlet P of the first electromagnetic valve through the first joint; an execution port A of the first electromagnetic valve is respectively communicated with an oil inlet P of the second electromagnetic valve, a control port K of the pressure switch and an oil inlet P of the third electromagnetic valve through a hydraulic rubber pipe, and an execution port B of the first electromagnetic valve is respectively communicated with a front axle brake and a rear axle brake; when pressure oil is introduced into a control port K of the pressure switch, the pressure switch is switched on; an execution port A of the second electromagnetic valve is communicated with the front axle brake through a second joint; an execution port A of the third electromagnetic valve is communicated with the rear axle brake through a third joint; the terminal K of the first electromagnetic valve, the terminal K of the second electromagnetic valve, the terminal K of the third electromagnetic valve, the pressure switch and the proximity switch are electrically connected or wirelessly communicated with the main controller; when the proximity switch is switched off and the pressure switch is switched off, the main controller controls a terminal K of the first electromagnetic valve, a terminal K of the second electromagnetic valve and a terminal K of the third electromagnetic valve to be electrified, at the moment, an oil inlet P of the first electromagnetic valve is communicated with the execution port B, the oil inlet P of the second electromagnetic valve is not communicated with the execution port A, and the oil inlet P of the third electromagnetic valve is not communicated with the execution port A; when the proximity switch is switched on, the main controller controls the terminal K of the first electromagnetic valve, the terminal K of the second electromagnetic valve and the terminal K of the third electromagnetic valve to lose power. When the invention is used, the magnetic steel is arranged on the brake pedal of the foot valve through the fastener, the approach switch is arranged on the bottom plate of the cab through the bracket, and the position of the approach switch corresponds to the position of the magnetic steel when the brake pedal of the foot valve is not stepped, therefore, when the hydraulic rubber tube is broken in the braking process, the control port K of the pressure switch is not communicated with pressure oil any more, the pressure switch is disconnected, and at the moment, the driver presses down the brake pedal of the foot valve to brake, the approach switch is in an off state, the main controller controls the terminal K of the first electromagnetic valve, the terminal K of the second electromagnetic valve and the terminal K of the third electromagnetic valve to be electrified, and pressure oil in the energy accumulator reaches a front axle brake and a rear axle brake through the foot valve and an execution port B of the first electromagnetic valve, so that the front wheels and the rear wheels are braked. When the brake pedal of the foot valve is stepped on for braking, even if a hydraulic rubber hose between the foot valve and the front axle brake and the rear axle brake is broken, the pressure oil in the energy accumulator can reach the front axle brake and the rear axle brake through the execution port B of the first electromagnetic valve of the foot valve, and the front wheels and the rear wheels can still be braked. Therefore, accidents are not easy to happen, and the safety is high.
Drawings
FIG. 1 is a schematic diagram of the present invention;
FIG. 2 is a hydraulic schematic of the present invention;
FIG. 3 is an electrical schematic of the present invention;
FIG. 4 is a schematic view of the magnetic steel of the present invention mounted on the brake pedal and the proximity switch mounted on the bracket;
fig. 5 is a schematic diagram of a brake apparatus of a vehicle according to the related art.
The reference numbers in the above figures are as follows: the brake system comprises a first electromagnetic valve 1, a second electromagnetic valve 2, a pressure switch 3, a proximity switch 4, magnetic steel 5, a main controller 6, a first joint 7, a second joint 8, a hydraulic rubber tube 9, a third electromagnetic valve 10, a third joint 11, a bracket 30, a front axle brake 50, a rear axle brake 51, an energy accumulator 52, a foot valve 53, a brake pedal 53-1 and a brake hydraulic rubber tube 54.
Detailed Description
The invention is further described below with reference to the accompanying drawings and the examples given.
As shown in fig. 1 to 3, a braking apparatus for a vehicle includes a front axle brake 50, a rear axle brake 51, an accumulator 52, and a foot valve 53; an oil inlet P of the foot valve 53 is communicated with the energy accumulator 52; the electromagnetic valve further comprises a first electromagnetic valve 1, a second electromagnetic valve 2, a pressure switch 3, a proximity switch 4, magnetic steel 5, a main controller 6, a first joint 7, a second joint 8, a hydraulic rubber pipe 9, a third electromagnetic valve 10 and a third joint 11; the first joint 7, the second joint 8 and the third joint 11 are all made of steel, in this embodiment, the first joint 7, the second joint 8 and the third joint 11 are all made of 35 # steel, and the magnetic steel 5 is made of magnetic steel. The pressure switch 3 is an oil pressure switch with the model number of DNM-03P-100K-21B. The main controller 6 is a PLC, in which a CPU 1215C manufactured by siemens is employed as a central processor. The proximity switch 4 is a proximity switch manufactured by the Otorx corporation under model number PR18-8DP 2. The front axle brake 50 and the rear axle brake 51 are both wet brakes manufactured by Wuhanyuanfeng automobile parts Limited and having the model number YF3501WB02-100/200, and the foot valve 53 adopts a MICO foot valve having the model number 06-466-240. An execution port A of the foot valve 53 is communicated with an oil inlet P of the first electromagnetic valve 1 through a first joint 7; the actuating port A of the first electromagnetic valve 1 is respectively communicated with the oil inlet P of the second electromagnetic valve 2, the control port K of the pressure switch 3 and the oil inlet P of the third electromagnetic valve 10 through a hydraulic rubber hose 9, and the actuating port B of the first electromagnetic valve 1 is respectively communicated with the front axle brake 50 and the rear axle brake 51; when pressure oil is introduced into a control port K of the pressure switch 3, the pressure switch 3 is switched on; when the control port K of the pressure switch 3 is not filled with pressure oil, the pressure switch 3 is turned off. The execution port A of the second electromagnetic valve 2 is communicated with a front axle brake 50 through a second joint 8; the actuating port A of the third electromagnetic valve 10 is communicated with a rear axle brake 51 through a third joint 11; the magnetic steel 5 corresponds to the proximity switch 4; the terminal K of the first electromagnetic valve 1, the terminal K of the second electromagnetic valve 2, the terminal K of the third electromagnetic valve 10, the pressure switch 3 and the proximity switch 4 are electrically connected or in wireless communication with the main controller 6; when the proximity switch 4 is switched off and the pressure switch 3 is switched off, the main controller 6 controls the terminal K of the first electromagnetic valve 1, the terminal K of the second electromagnetic valve 2 and the terminal K of the third electromagnetic valve 10 to be electrified, at this time, the oil inlet P of the first electromagnetic valve 1 is communicated with the execution port B, the oil inlet P of the second electromagnetic valve 2 is not communicated with the execution port A, and the oil inlet P of the third electromagnetic valve 10 is not communicated with the execution port A; when the proximity switch 4 is switched on, the main controller 6 controls the terminal K of the first electromagnetic valve 1, the terminal K of the second electromagnetic valve 2 and the terminal K of the third electromagnetic valve 10 to lose power.
As shown in FIG. 4, in the present invention, when in use, the magnetic steel 5 is mounted on the brake pedal 53-1 of the foot valve 53 by a fastener, the proximity switch 4 is mounted on the bracket 30 by a fastener, the bracket 30 is mounted on the floor of the cab by a fastener, and the proximity switch 4 corresponds to the position of the magnetic steel 5 when the brake pedal 53-1 of the foot valve 53 is not depressed, that is, when the driver does not depress the brake pedal 53-1 of the foot valve 53 for braking, the proximity switch 4 is in the on state, and when the driver depresses the brake pedal 53-1 of the foot valve 53 for braking, the proximity switch 4 is in the off state. When the proximity switch 4 is switched on, the main controller 6 controls the terminal K of the first electromagnetic valve 1, the terminal K of the second electromagnetic valve 2 and the terminal K of the third electromagnetic valve 10 to lose power. At this time, an oil inlet P of the first electromagnetic valve 1 is communicated with the execution port A, an oil inlet P of the second electromagnetic valve 2 is communicated with the execution port A, and an oil inlet P of the third electromagnetic valve 10 is communicated with the execution port A.
The working principle of the invention is as follows: the execution port A of the foot valve 53 is communicated with the oil inlet P of the first electromagnetic valve 1 through the first joint 7; an execution port A of the first electromagnetic valve 1 is respectively communicated with an oil inlet P of the second electromagnetic valve 2, a control port K of the pressure switch 3 and an oil inlet P of the third electromagnetic valve 10 through a hydraulic rubber hose 9, and the execution port A of the second electromagnetic valve 2 is communicated with a front axle brake 50 through a second joint 8; the actuating port A of the third electromagnetic valve 10 is communicated with the rear axle brake 51 through a third joint 11; and because the first joint 7, the second joint 8 and the third joint 11 are all made of steel, and the steel is not easy to break when braking, only the hydraulic hose 9 between the foot valve 53 and the front axle brake 50 and the rear axle brake 51 is easy to break when braking.
When the driver does not press the brake pedal 53-1 of the foot valve 53 to brake, the proximity switch 4 is in the on state, and the main controller 6 controls the terminal K of the first electromagnetic valve 1, the terminal K of the second electromagnetic valve 2 and the terminal K of the third electromagnetic valve 10 to lose power. At this time, an oil inlet P of the first electromagnetic valve 1 is communicated with the execution port A, an oil inlet P of the second electromagnetic valve 2 is communicated with the execution port A, and an oil inlet P of the third electromagnetic valve 10 is communicated with the execution port A. When a driver steps on a brake pedal 53-1 of the foot valve 53 to brake, the proximity switch 4 is in an off state, when the hydraulic rubber tube 9 is not broken in the braking process, pressure oil is introduced into a control port K of the pressure switch 3, the pressure switch 3 is switched on, a terminal K of the first electromagnetic valve 1, a terminal K of the second electromagnetic valve 2 and a terminal K of the third electromagnetic valve 10 are still in a power-off state, an oil inlet P of the first electromagnetic valve 1 is communicated with the execution port A, an oil inlet P of the second electromagnetic valve 2 is communicated with the execution port A, and an oil inlet P of the third electromagnetic valve 10 is communicated with the execution port A. The pressure oil in the accumulator 52 reaches the front axle brake 50 through the foot valve 53, the execution port A of the first electromagnetic valve 1 and the second electromagnetic valve 2, and the pressure oil in the accumulator 52 can also reach the rear axle brake 51 through the foot valve 53, the execution port A of the first electromagnetic valve 1 and the third electromagnetic valve 10, so that the front wheels and the rear wheels are braked.
When the hydraulic rubber tube 9 is broken in the braking process, pressure oil is not introduced into the control port K of the pressure switch 3 any more, the pressure switch 3 is disconnected, the driver treads the brake pedal 53-1 of the foot valve 53 to brake, the proximity switch 4 is in a disconnected state, namely the proximity switch 4 is disconnected and the pressure switch 3 is disconnected, the main controller 6 controls the connection terminal K of the first electromagnetic valve 1, the connection terminal K of the second electromagnetic valve 2 and the connection terminal K of the third electromagnetic valve 10 to be electrified, the oil inlet P of the first electromagnetic valve 1 is communicated with the execution port B, the oil inlet P of the second electromagnetic valve 2 is not communicated with the execution port A, and the oil inlet P of the third electromagnetic valve 10 is not communicated with the execution port A; the pressure oil in the accumulator 52 reaches the front axle brake 50 and the rear axle brake 51 through the foot valve 53 and then through the actuation port B of the first solenoid valve 1, thereby braking the front wheels and the rear wheels. At this time, the oil inlet P of the second electromagnetic valve 2 is not communicated with the actuating port a, and the oil inlet P of the third electromagnetic valve 10 is not communicated with the actuating port a, so that the pressure oil in the front axle brake 50 cannot flow out through the broken hydraulic rubber hose 9 after passing through the second electromagnetic valve 2, and the pressure oil in the rear axle brake 51 cannot flow out through the broken hydraulic rubber hose 9 after passing through the third electromagnetic valve 10. When the brake pedal 53-1 of the foot valve 53 is depressed to perform braking, the front and rear wheels are braked even if the hydraulic hose 9 between the foot valve 53 and the front and rear axle brakes 50 and 51 is broken and the pressure oil in the accumulator 52 reaches the front and rear axle brakes 50 and 51 through the actuating port B of the first solenoid valve 1 of the foot valve 53. Therefore, accidents are not easy to happen, and the safety is high.

Claims (1)

1. A braking device of a vehicle comprises a first electromagnetic valve (1), a second electromagnetic valve (2), a proximity switch (4), magnetic steel (5), a main controller (6), a front axle brake (50), a rear axle brake (51), an energy accumulator (52) and a foot valve (53); an oil inlet P of the foot valve (53) is communicated with an energy accumulator (52); the magnetic steel (5) corresponds to the proximity switch (4); the terminal K of the first electromagnetic valve (1), the terminal of the second electromagnetic valve (2) and the proximity switch (4) are electrically connected or wirelessly communicated with the main controller (6); the method is characterized in that:
the hydraulic control system also comprises a pressure switch (3), a first joint (7), a second joint (8), a hydraulic rubber pipe (9), a third electromagnetic valve (10) and a third joint (11); an execution port A of the foot valve (53) is communicated with an oil inlet P of the first electromagnetic valve (1) through a first joint (7); an execution port A of the first electromagnetic valve (1) is respectively communicated with an oil inlet P of the second electromagnetic valve (2), a control port K of the pressure switch (3) and an oil inlet P of the third electromagnetic valve (10) through a hydraulic rubber hose (9), and an execution port B of the first electromagnetic valve (1) is respectively communicated with a front axle brake (50) and a rear axle brake (51); when pressure oil is introduced into a control port K of the pressure switch (3), the pressure switch (3) is switched on; an execution port A of the second electromagnetic valve (2) is communicated with a front axle brake (50) through a second joint (8); an execution port A of the third electromagnetic valve (10) is communicated with a rear axle brake (51) through a third joint (11); the terminal K of the third electromagnetic valve (10) and the pressure switch (3) are electrically connected or wirelessly communicated with the main controller (6); when the proximity switch (4) is switched off and the pressure switch (3) is switched off, the main controller (6) controls the terminal K of the first electromagnetic valve (1), the terminal K of the second electromagnetic valve (2) and the terminal K of the third electromagnetic valve (10) to be electrified, at the moment, the oil inlet P of the first electromagnetic valve (1) is communicated with the execution port B, the oil inlet P of the second electromagnetic valve (2) is not communicated with the execution port A, and the oil inlet P of the third electromagnetic valve (10) is not communicated with the execution port A; when the proximity switch (4) is switched on, the main controller (6) controls the terminal K of the first electromagnetic valve (1), the terminal K of the second electromagnetic valve (2) and the terminal K of the third electromagnetic valve (10) to lose power.
CN201811573192.XA 2018-12-21 2018-12-21 Vehicle brake device Active CN109532803B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN202110037368.5A CN112810593B (en) 2018-12-21 2018-12-21 Vehicle braking device and working method thereof
CN202110037377.4A CN112810594B (en) 2018-12-21 2018-12-21 Vehicle using vehicle brake device with high safety
CN201811573192.XA CN109532803B (en) 2018-12-21 2018-12-21 Vehicle brake device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811573192.XA CN109532803B (en) 2018-12-21 2018-12-21 Vehicle brake device

Related Child Applications (2)

Application Number Title Priority Date Filing Date
CN202110037377.4A Division CN112810594B (en) 2018-12-21 2018-12-21 Vehicle using vehicle brake device with high safety
CN202110037368.5A Division CN112810593B (en) 2018-12-21 2018-12-21 Vehicle braking device and working method thereof

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Publication Number Publication Date
CN109532803A CN109532803A (en) 2019-03-29
CN109532803B true CN109532803B (en) 2021-09-21

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CN202110037377.4A Active CN112810594B (en) 2018-12-21 2018-12-21 Vehicle using vehicle brake device with high safety
CN201811573192.XA Active CN109532803B (en) 2018-12-21 2018-12-21 Vehicle brake device
CN202110037368.5A Active CN112810593B (en) 2018-12-21 2018-12-21 Vehicle braking device and working method thereof

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CN113734123B (en) * 2021-09-22 2023-05-12 一汽解放汽车有限公司 Automatic driving hydraulic braking system

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CN112810594B (en) 2023-03-14
CN112810593B (en) 2023-10-17

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