WO2014082466A1 - 汽车制动助力及控制装置 - Google Patents

汽车制动助力及控制装置 Download PDF

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Publication number
WO2014082466A1
WO2014082466A1 PCT/CN2013/080570 CN2013080570W WO2014082466A1 WO 2014082466 A1 WO2014082466 A1 WO 2014082466A1 CN 2013080570 W CN2013080570 W CN 2013080570W WO 2014082466 A1 WO2014082466 A1 WO 2014082466A1
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WO
WIPO (PCT)
Prior art keywords
hydraulic
hydraulic pipeline
switch
hydraulic line
wheel control
Prior art date
Application number
PCT/CN2013/080570
Other languages
English (en)
French (fr)
Inventor
代云峰
Original Assignee
奇瑞汽车股份有限公司
芜湖普威技研有限公司
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Application filed by 奇瑞汽车股份有限公司, 芜湖普威技研有限公司 filed Critical 奇瑞汽车股份有限公司
Publication of WO2014082466A1 publication Critical patent/WO2014082466A1/zh

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE 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
    • B60T13/00Transmitting 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
    • B60T13/10Transmitting 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
    • B60T13/12Transmitting 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
    • B60T13/16Transmitting 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 using pumps directly, i.e. without interposition of accumulators or reservoirs
    • B60T13/161Systems with master cylinder
    • B60T13/162Master cylinder mechanically coupled with booster
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE 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
    • B60T13/00Transmitting 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
    • B60T13/10Transmitting 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
    • B60T13/12Transmitting 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
    • B60T13/14Transmitting 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 using accumulators or reservoirs fed by pumps
    • B60T13/142Systems with master cylinder
    • B60T13/145Master cylinder integrated or hydraulically coupled with booster
    • B60T13/146Part of the system directly actuated by booster pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE 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
    • B60T13/00Transmitting 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
    • B60T13/10Transmitting 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
    • B60T13/66Electrical control in fluid-pressure brake systems
    • B60T13/68Electrical control in fluid-pressure brake systems by electrically-controlled valves
    • B60T13/686Electrical control in fluid-pressure brake systems by electrically-controlled valves in hydraulic systems or parts thereof

Definitions

  • the invention relates to the technical field of automobile brakes, and particularly relates to an automobile brake assisting and control device. Background technique
  • Modern automotive brake boosting systems generally use vacuum boosters, and brake control systems use ABS controls.
  • the vacuum assisted braking system is currently the main brake system used in passenger cars and light commercial vehicles. It uses hydraulic pressure as the transmission medium. Compared with the pneumatic brake system that can provide the power source, it needs a power assist system to assist the driver. brake.
  • the vacuum brake boosting system is based on the manual hydraulic brake to provide a boosting device that provides braking force from other energy sources, so that both manpower and power can be used.
  • the existing vacuum boosting device has a complicated installation process, requires high space layout, and the vacuum booster has high dependence on the engine, and the brake pedal force is high. It is difficult to coordinate with the stroke, resulting in a decrease in the comfort of the brake pedal operation.
  • an embodiment of the present invention provides an automobile brake assisting and controlling device, which solves the problem that the automobile brake assisting and control system has a large structure, a complicated installation process, and a vacuum booster is highly dependent on the engine.
  • the problem is also to improve the comfort of the car brake pedal.
  • An automobile brake assisting and controlling device comprising: a liquid storage tank, a high pressure gas tank, an electronic control unit (ECU), and a power assisting and control unit, the power assisting and control unit having a piston mechanism and four wheel control hydraulic pressure a pipeline mechanism; the piston mechanism is respectively connected to the liquid storage tank, the high pressure gas tank, and the four-way wheel control hydraulic line, and the electronic control unit is respectively controlled with the piston mechanism and the four-way wheel Hydraulic line circuit connection.
  • ECU electronice control unit
  • the piston mechanism includes a piston barrel, a piston and a piston return spring, and the piston barrel communicates with the liquid storage tank on a side wall, and the piston cylinder is on the first bottom wall and the high pressure gas tank In communication, the piston return spring is disposed between the piston and the second bottom wall of the cylinder.
  • the communication pipe of the piston mechanism and the high-pressure gas tank has an intake pipe and an air suction pipe, and a first electromagnetic valve is disposed on the air intake pipe, and a first single is disposed on the air suction pipe To the valve and air pump.
  • the four-way wheel control hydraulic line includes a right front wheel control hydraulic line, a left rear wheel control hydraulic line, a right rear wheel control hydraulic line, and a left front wheel control hydraulic line, the right front wheel
  • the control hydraulic line, the left rear wheel control hydraulic line, the right rear wheel control hydraulic line, and the left front wheel control hydraulic line are respectively connected to the corresponding wheel brake cylinders.
  • the right front wheel control hydraulic line includes a second one-way valve, a first hydraulic line switch and a second electromagnetic valve, and the second one-way valve and the first hydraulic line switch are arranged in parallel
  • the second front electromagnetic valve is connected to the electronic control unit circuit;
  • the first hydraulic circuit switch has a first hydraulic line switch A port and a first hydraulic line switch B The port and the first hydraulic line switch return spring, the second electromagnetic valve controlling the first hydraulic line switch return spring to open and close the first hydraulic line switch.
  • the left rear wheel control hydraulic circuit includes a third one-way valve, a second hydraulic line switch and a third electromagnetic valve, and the third one-way valve and the second hydraulic line switch are arranged in parallel
  • the left rear wheel controls the hydraulic circuit
  • the third electromagnetic valve is connected to the electronic control unit circuit
  • the second hydraulic line switch has a second hydraulic line switch A port and a second hydraulic line switch B
  • the port and the second hydraulic line switch return spring, the third electromagnetic valve controlling the second hydraulic line switch return spring to open and close the second hydraulic line switch.
  • the right rear wheel control hydraulic circuit includes a fourth check valve, a third hydraulic line switch and a fourth electromagnetic valve, and the fourth check valve and the third hydraulic line switch are arranged in parallel
  • the right rear wheel controls the hydraulic line
  • the fourth electromagnetic valve is connected to the electronic control unit circuit
  • the third hydraulic line switch has a third hydraulic line switch A port and a third hydraulic line switch B
  • the port and the third hydraulic line switch return spring, the fourth electromagnetic valve controlling the third hydraulic line switch return spring to open and close the third hydraulic line switch.
  • the left front wheel control hydraulic line includes a fifth check valve, a fourth hydraulic line switch and a fifth electromagnetic valve, and the fifth check valve and the fourth hydraulic line switch are arranged in parallel
  • the fifth front electromagnetic valve is connected to the electronic control unit circuit;
  • the fourth The hydraulic line switch has a fourth hydraulic line switch A port, a fourth hydraulic line switch B port and a fourth hydraulic line switch return spring, and the fifth electromagnetic valve controls the fourth hydraulic line switch to return The spring realizes opening and closing of the fourth hydraulic line switch.
  • the electronic control unit is coupled to a brake pedal circuit of the automobile.
  • the device further includes: a first liquid storage pipeline and a second liquid storage pipeline, the first liquid storage pipeline and the right front wheel control hydraulic pipeline and the left rear wheel control hydraulic pipe The roads are arranged in parallel, and the second liquid storage pipeline is arranged in parallel with the right rear wheel control hydraulic circuit and the left front wheel control hydraulic circuit;
  • the first liquid storage pipeline includes a sixth one-way valve, a first hydraulic pump, a seventh one-way valve, and a first liquid storage chamber, which are sequentially disposed, and the liquid discharge of the sixth one-way valve and the piston mechanism
  • the second liquid storage line includes an eighth check valve, a second hydraulic pump, a ninth check valve and a second liquid storage chamber, which are sequentially disposed, the eighth check valve and the piston mechanism
  • the liquid outlet is connected; the first hydraulic pump and the second hydraulic pump are simultaneously connected to the motor.
  • FIG. 1 is a schematic diagram of an integrated module of an automobile brake assisting and controlling device according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a brake boosting and controlling device of a vehicle according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a brake assisting and control device of a vehicle according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a vehicle brake assist and control device in a step-down state according to an embodiment of the present invention. detailed description
  • the embodiment provides an automobile brake assisting and controlling device. Referring to FIG. 1 to FIG. 4 together, since the technical features of the automobile brake assisting and controlling device are many, not all the technologies are used in each drawing. Features are labeled.
  • the automobile brake assisting and control device comprises: a liquid storage tank 1, a high pressure gas tank 2, an electronic control unit 3 (abbreviated as ECU) and a power assisting and control unit 4, and the electronic control unit 3 sends a signal indicating the liquid storage tank 1 and the high pressure gas.
  • the tank 2 is started up, and the liquid storage tank 1 delivers high-pressure liquid to the power assisting and control unit 4, and the assisting and control unit 4 assists the vehicle wheel with auxiliary pressure by the high-pressure liquid.
  • the power assist and control unit 4 has a piston mechanism 41 and four wheel control hydraulic lines.
  • the piston mechanism 41 is respectively connected with the liquid storage tank 1, the high pressure gas tank 2 and the four-way wheel control hydraulic pipeline, and the electronic control unit 3 is respectively connected with the piston mechanism 41 and the four-way wheel control hydraulic pipeline circuit, and the electronic control unit 3 and the automobile
  • the brake pedal 5 is electrically connected.
  • the piston mechanism 41 includes a piston barrel 411, a piston 412 and a piston return spring 413.
  • the piston 412 and the piston return spring 413 are disposed in the cylinder 411.
  • the piston 412 can move in the cylinder 411 under the push of high pressure gas. At the same time, it can also be returned under the elastic force of the piston return spring 413.
  • the piston cylinder 411 communicates with the liquid storage tank 1 on the side wall, and two inlet ports are opened on the side wall of the cylinder barrel 411, and the two liquid inlets communicate with the liquid storage tank 1.
  • two liquid outlets are opened on the side wall of the piston cylinder 411 on the opposite sides of the two liquid inlets, and the two liquid outlets are respectively connected with the two wheel control hydraulic lines.
  • the piston barrel 411 is in communication with the high pressure gas tank 2 on the first bottom wall, and the piston return spring 413 is disposed between the piston 412 and the second bottom wall of the cylinder barrel 411, so that the pressure of the high pressure gas in the high pressure gas tank 2 is
  • the elastic force of the piston return spring 413 constitutes a pushing force and a counter driving force to the piston 412.
  • the communication pipe of the piston mechanism 41 and the high pressure gas tank 2 has an intake pipe 414 and an air suction pipe 415, and a first electromagnetic valve 416 is disposed on the intake pipe 414, and a first single is disposed on the air suction pipe 415.
  • the valve 417 and the air pump 418, the first solenoid valve 416 and the air pump 418 are electrically connected to the electronic control unit 3, respectively.
  • the electronic control unit 3 sends a signal to the first solenoid valve 416 to open the first solenoid valve 416, and the high pressure gas in the high pressure gas tank 2 is It is delivered into the piston barrel 411 of the piston mechanism 41 and pushes the piston 412.
  • the electronic control unit 3 sends a signal to the air pump 418, turning on the air pump 418 and the first check valve 417, and the air pump 418 will apply high pressure in the cylinder 411.
  • the gas is pumped back into the high pressure gas tank 2,
  • the piston 412 is pushed back to the initial state by the piston return spring 413.
  • the four-way wheel control hydraulic circuit includes a right front wheel control hydraulic line 42, a left rear wheel control hydraulic line 43, a right rear wheel control hydraulic line 44, and a left front wheel control hydraulic line 45, which controls the hydraulic pressure of the four wheels.
  • the lines are each connected to a corresponding wheel brake cylinder. That is, the right front wheel control hydraulic line 42 is connected with the wheel brake cylinder of the right front wheel, and the right front wheel control hydraulic line 42 delivers high pressure liquid to the wheel brake cylinder of the right front wheel, and the wheel of the right front wheel is made.
  • the dynamic sub-pump performs hydraulic braking on the right front wheel; the left rear wheel control hydraulic line 43 is connected to the left rear wheel wheel brake cylinder, and the left rear wheel control hydraulic line 43 is to the left rear wheel wheel brake cylinder
  • the wheel brake cylinder of the left rear wheel applies hydraulic brake to the left rear wheel; similarly, the right rear wheel control hydraulic line 44 is connected with the wheel brake cylinder of the right rear wheel, and the left front wheel control
  • the hydraulic line 45 is connected to the wheel brake cylinder of the left front wheel.
  • the wheel front speed sensors are disposed on the right front wheel, the left rear wheel, the right rear wheel, and the left front wheel of the automobile, and the wheel speed sensors are electrically connected to the electronic control unit 3, respectively.
  • the right front wheel control hydraulic line 42 includes a second one-way valve 421, a first hydraulic line switch 422, and a second electromagnetic valve 423, and the second one-way valve 421 and the first hydraulic line switch 422 are disposed in parallel
  • the second solenoid valve 423 is electrically connected to the electronic control unit 3.
  • the two ends of the second check valve 421 are respectively connected to one of the liquid outlets on the side wall of the cylinder 411 and the wheel brake cylinder of the right front wheel, and the high pressure liquid in the right front wheel control hydraulic line 42 can pass the first
  • the two check valve 421 is drawn back into the cylinder 411, and the high pressure liquid in the cylinder 411 cannot be transported through the second check valve 421 to the line of the right front wheel control hydraulic line 42.
  • the first hydraulic line switch 422 has a first hydraulic line switch A port 424, a first hydraulic line switch B port 425 and a first hydraulic line switch return spring 426, and the second electromagnetic valve 423 controls the first hydraulic line
  • the switch return spring 426 opens and closes the first hydraulic line switch 422.
  • the first hydraulic line switch A port 424 is in communication with the liquid outlet on the side wall of the cylinder 411, and the first hydraulic line switch B port 425 is in communication with the wheel brake cylinder of the right front wheel, and the first hydraulic line is switched back.
  • the position spring 426 can push the ball plunger in the first hydraulic line switch 422 to close or open the first hydraulic line switch A port 424 and the first hydraulic line switch B port 425 under the control of the second solenoid valve 423.
  • the working principle is: when braking is required, the second solenoid valve 423 controls the first hydraulic line switch A port 424 to open, and the second solenoid valve 423 controls the first hydraulic line switch B port 425 to be closed, and the inside of the piston barrel 411
  • the high pressure liquid enters the line of the right front wheel control hydraulic line 42 through the first hydraulic line switch A port 424, so that the wheel brake cylinder that enters the right front wheel performs braking.
  • the second solenoid valve 423 controls both the first hydraulic line switch A port 424 and the first hydraulic line switch B port 425 when continuous braking is required (i.e., the pressure in the right front wheel control hydraulic line 42 is maintained).
  • the closed state that is, the high pressure hydraulic force is maintained in the right front wheel control hydraulic line 42, so that the right front wheel continues to be in a braking state.
  • the second solenoid valve 423 controls the first hydraulic line switch A port 424 to be in a closed state
  • the second solenoid valve 423 controls the first hydraulic line switch B port 425 to be in a closed state.
  • the second check valve 421 is in an open state, such that a portion of the high pressure liquid in the right front wheel control hydraulic line 42 is returned to the piston barrel 411 through the second check valve 421, and the other portion passes through the first hydraulic tube.
  • the switch B port 425 enters the first liquid storage line 46, and two return paths are provided to quickly release the brake state.
  • the left rear wheel control hydraulic line 43 includes a third one-way valve 431, a second hydraulic line switch 432, and a third electromagnetic valve 433.
  • the third one-way valve 431 and the second hydraulic line switch 432 are disposed in parallel on the left rear wheel.
  • the third solenoid valve 433 is electrically connected to the electronic control unit 3.
  • the second hydraulic line switch 432 has a second hydraulic line switch A port 434, a second hydraulic line switch B port 435 and a second hydraulic line switch return spring 436, and the third electromagnetic valve 433 controls the second hydraulic line
  • the switch return spring 436 opens and closes the second hydraulic line switch 432.
  • the right rear wheel control hydraulic line 44 includes a fourth check valve 441, a third hydraulic line switch 442, and a fourth solenoid valve 443.
  • the fourth check valve 441 and the third hydraulic line switch 442 are disposed in parallel on the right rear wheel.
  • the fourth solenoid valve 443 is electrically connected to the electronic control unit 3.
  • the third hydraulic line switch 442 has a third hydraulic line switch A port 444, a third hydraulic line switch B port 445 and a third hydraulic line switch return spring 446, and the fourth electromagnetic valve 443 controls the third hydraulic line
  • the switch return spring 446 realizes opening and closing of the third hydraulic line switch 442.
  • the left front wheel control hydraulic line 45 includes a fifth check valve 451, a fourth hydraulic line switch 452, and a fifth electromagnetic valve 453.
  • the fifth check valve 451 and the fourth hydraulic line switch 452 are disposed in parallel on the left front wheel.
  • the fifth solenoid valve 453 is electrically connected to the electronic control unit 3.
  • the fourth hydraulic line switch 452 has a fourth hydraulic line switch A port 454, a fourth hydraulic line switch B port 455 and a fourth hydraulic line switch return spring 456, and the fifth electromagnetic valve 453 controls the fourth hydraulic line
  • the switch return spring 456 opens and closes the fourth hydraulic line switch 452.
  • connection and control relationship of the components in the left rear wheel control hydraulic line 43, the right rear wheel control hydraulic line 44, and the left front wheel control hydraulic line 45 and the working principle are the same as those of the right front wheel control hydraulic line 42. This is no longer - repeat.
  • the automobile brake assisting and controlling device further comprises: a first liquid storage line 46 and a second liquid storage line 47, a first liquid storage line 46 and a right front wheel control hydraulic line 42 and a left rear wheel
  • the control hydraulic lines 43 are arranged in parallel
  • the hydraulic lines 45 are arranged in parallel.
  • One end of the first liquid storage line 46 communicates with a liquid outlet on the piston barrel 411, the first end of the first liquid storage line 46 and the first hydraulic line switch B port 425 and the second hydraulic line switch B
  • the port 435 is connected, that is, when the pressure is reduced, the high pressure liquid in the right front wheel control hydraulic line 42 can enter the first liquid storage line 46 through the first hydraulic line switch B port 425, and the left rear wheel controls the hydraulic tube.
  • the high pressure liquid within the passage 43 can enter the first reservoir line 46 via the second hydraulic line switch B port 435.
  • the first end of the second liquid storage line 47 communicates with another liquid outlet on the cylinder 411, the second end of the second liquid storage line 47 and the third hydraulic line switch B port 445 and the The four hydraulic line switch B port 455 is connected.
  • the high pressure liquid in the right rear wheel control hydraulic line 44 can enter the second liquid storage line 47 through the third hydraulic line switch B port 445, left.
  • the high pressure liquid in the front wheel control hydraulic line 45 can enter the second liquid storage line 47 through the fourth hydraulic line switch B port 455.
  • the first liquid storage line 46 includes a sixth check valve 461, a first hydraulic pump 462, a seventh check valve 463, and a first liquid storage chamber 464, which are sequentially disposed, and the sixth check valve 461 and the piston mechanism 41
  • the liquid port is connected.
  • the second liquid storage line 47 includes an eighth check valve 471, a second hydraulic pump 472, a ninth check valve 473, and a second liquid storage chamber 474 which are sequentially disposed, and the eighth check valve 471 and the piston mechanism 41 are out.
  • the liquid port is connected.
  • the first hydraulic pump 462 and the second hydraulic pump 472 are simultaneously connected to the motor 48.
  • the motor 48 drives the first hydraulic pump 462 to extract the high pressure liquid in the right front wheel control hydraulic line 42 and the left rear wheel control hydraulic line 43 from flowing back into the piston mechanism 41, or into the first liquid storage chamber 464 for storage.
  • the motor 48 drives the second hydraulic pump 472 to draw the high pressure liquid in the right rear wheel control hydraulic line 44 and the left front wheel control hydraulic line 45 back into the piston mechanism 41 or into the second reservoir 474 for storage.
  • the working principle of the automobile brake assisting and controlling device of the invention is:
  • the electronic control unit 3 controls the first solenoid valve 416 to be opened according to the received signal, so that the high pressure gas in the high pressure gas tank 2 enters the piston cylinder 411 to push the piston 412, and the liquid is stored.
  • the brake fluid in the tank 1 enters the brake cylinders of the four wheels through the respective hydraulic line switch A ports opened in the four-wheel control hydraulic line, thereby generating braking force to brake the entire vehicle.
  • the flow path of the brake fluid is shown in the direction indicated by the arrow in Fig. 2.
  • the electronic control unit 3 controls the first solenoid valve 416 to be closed, so that the high pressure gas in the high pressure gas cylinder 2 no longer enters the piston cylinder 411. And the electronic control unit 3 controls the second solenoid valve 423, the third solenoid valve 433, the fourth solenoid valve 443, and the fifth solenoid valve 453 to respectively close the A port of the respective hydraulic line switch, and brake the high pressure The liquid is enclosed in the brake line, so that the brake pressure in the brake line is maintained A constant value.
  • the brake fluid flow path is shown in the direction indicated by the arrow in Figure 2.
  • the first solenoid valve 416 When the brake pedal is released (ie, the brake assist and the control device are in the step-down operation state), the first solenoid valve 416 is closed, the second solenoid valve 423, the third solenoid valve 433, the fourth solenoid valve 443, and the fifth electromagnetic
  • the valve 453 respectively closes the A ports of the respective hydraulic line switches and opens the B ports of the respective hydraulic line switches, and the air pump 418 draws the high pressure gas in the piston barrel 411 back into the high pressure gas tank 2, first The hydraulic pump 462 and the second hydraulic pump 472 pump the brake fluid in the brake line back to the liquid storage tank 1 and the first liquid storage chamber 464 or the second liquid storage chamber 474, thereby reducing the brake circuit.

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Regulating Braking Force (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

一种汽车制动助力及控制装置,包括:储液罐(1)、高压气罐(2)、电子控制单元(3)和助力及控制单元(4),所述助力及控制单元(4)具有活塞机构(41)和四路车轮控制液压管路;所述活塞机构(41)分别与所述储液罐(1)、所述高压气罐(2)和所述四路车轮控制液压管路连通,所述电子控制单元(3)分别与所述活塞机构(41)和所述四路车轮控制液压管路电路连接。通过使用高压储能的制动助力及控制装置,使得汽车制动反应迅速,解除了对发动机的依赖,并且安装简单方便,同时也使得制动踏板力和行程始终处于最佳状态。

Description

说 明 书 汽车制动助力及控制装置 本申请要求于 2012 年 11 月 27 日提交中国专利局、 申请号为 201210490680.0、 发明名称为 "汽车制动助力及控制装置" 的中国专利申请的 优先权, 其全部内容通过引用结合在本申请中。 技术领域
本发明涉及汽车制动技术领域, 特别涉及一种汽车制动助力及控制装置。 背景技术
现代汽车制动助力系统一般采用真空助力装置, 制动控制系统采用 ABS 控制装置。 真空助力制动系统是目前乘用车和轻型商用车主要使用的制动系 统, 其采用液压作为传动媒介, 与可以提供动力源的气压制动系统相比, 其需 要助力系统来辅助驾驶员进行制动。真空制动助力系统是在人力液压制动的基 础上加设一套由其他能源提供制动力的助力装置, 使得人力与动力兼用。
在实现本发明的过程中, 发明人发现现有技术至少存在以下问题: 现有的 真空助力装置安装工艺复杂, 对空间布置要求高, 且真空助力器对发动机的依 赖较高, 制动踏板力和行程难以协调, 导致制动踏板操纵的舒适度下降。 发明内容
为了解决现有技术的问题, 本发明实施例提供了一种汽车制动助力及控制 装置, 该装置解决了汽车制动助力及控制系统结构庞大、 安装工艺复杂以及真 空助力器对发动机依赖高的问题, 同时还可以提升汽车制动踏板操纵的舒适 度。 所述技术方案如下:
一种汽车制动助力及控制装置, 所述装置包括: 储液罐、 高压气罐、 电子 控制单元(ECU )和助力及控制单元, 所述助力及控制单元具有活塞机构和四 路车轮控制液压管路; 所述活塞机构分别与所述储液罐、 所述高压气罐和所述 四路车轮控制液压管路连通, 所述电子控制单元分别与所述活塞机构和所述四 路车轮控制液压管路电路连接。 进一步地, 所述活塞机构包括活塞筒、 活塞和活塞回位弹簧, 所述活塞筒 在侧壁上与所述储液罐连通, 所述活塞筒在第一底壁上与所述高压气罐连通, 所述活塞回位弹簧设置在所述活塞与所述活塞筒的第二底壁之间。
进一步地, 所述活塞机构与所述高压气罐的连通管道具有进气管道和抽气 管道, 在所述进气管道上设置有第一电磁阀, 在所述抽气管道上设置有第一单 向阀和气泵。
进一步地, 所述四路车轮控制液压管路包括右前轮控制液压管路、 左后轮 控制液压管路、 右后轮控制液压管路和左前轮控制液压管路, 所述右前轮控制 液压管路、 所述左后轮控制液压管路、 所述右后轮控制液压管路和所述左前轮 控制液压管路分别与对应的车轮制动分泵连接。
进一步地, 所述右前轮控制液压管路包括第二单向阀、 第一液压管路开关 和第二电磁阀, 所述第二单向阀和所述第一液压管路开关并联设置在所述右前 轮控制液压管路上, 所述第二电磁阀与所述电子控制单元电路连接; 所述第一 液压管路开关具有第一液压管路开关 A端口、 第一液压管路开关 B端口和第 一液压管路开关回位弹簧, 所述第二电磁阀控制所述第一液压管路开关回位弹 簧实现所述第一液压管路开关的开闭。
进一步地, 所述左后轮控制液压管路包括第三单向阀、 第二液压管路开关 和第三电磁阀, 所述第三单向阀和所述第二液压管路开关并联设置在所述左后 轮控制液压管路上, 所述第三电磁阀与所述电子控制单元电路连接; 所述第二 液压管路开关具有第二液压管路开关 A端口、 第二液压管路开关 B端口和第 二液压管路开关回位弹簧, 所述第三电磁阀控制所述第二液压管路开关回位弹 簧实现所述第二液压管路开关的开闭。
进一步地, 所述右后轮控制液压管路包括第四单向阀、 第三液压管路开关 和第四电磁阀, 所述第四单向阀和所述第三液压管路开关并联设置在所述右后 轮控制液压管路上, 所述第四电磁阀与所述电子控制单元电路连接; 所述第三 液压管路开关具有第三液压管路开关 A端口、 第三液压管路开关 B端口和第 三液压管路开关回位弹簧, 所述第四电磁阀控制所述第三液压管路开关回位弹 簧实现所述第三液压管路开关的开闭。
进一步地, 所述左前轮控制液压管路包括第五单向阀、 第四液压管路开关 和第五电磁阀, 所述第五单向阀和所述第四液压管路开关并联设置在所述左前 轮控制液压管路上, 所述第五电磁阀与所述电子控制单元电路连接; 所述第四 液压管路开关具有第四液压管路开关 A端口、 第四液压管路开关 B端口和第 四液压管路开关回位弹簧, 所述第五电磁阀控制所述第四液压管路开关回位弹 簧实现所述第四液压管路开关的开闭。
进一步地, 所述电子控制单元与汽车的制动踏板电路连接。
进一步地, 所述装置还包括: 第一储液管路和第二储液管路, 所述第一储 液管路与所述右前轮控制液压管路以及所述左后轮控制液压管路并联设置, 所 述第二储液管路与所述右后轮控制液压管路以及所述左前轮控制液压管路并 联设置;
所述第一储液管路包括依次设置的第六单向阀、 第一液压泵、 第七单向阀 和第一储液室, 所述第六单向阀与所述活塞机构的出液口连通; 所述第二储液 管路包括依次设置的第八单向阀、 第二液压泵、 第九单向阀和第二储液室, 所 述第八单向阀与所述活塞机构的出液口连通; 所述第一液压泵和所述第二液压 泵同时与电机连接。
本发明实施例提供的技术方案带来的有益效果是:
通过使用高压储能的制动助力及控制装置, 使得汽车制动反应迅速, 解除 了对发动机的依赖, 并且安装筒单方便, 同时也使得制动踏板力和行程始终处 于最佳状态。 附图说明
为了更清楚地说明本发明实施例中的技术方案, 下面将对实施例描述中所 需要使用的附图作筒单地介绍, 显而易见地, 下面描述中的附图仅仅是本发明 的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下, 还可以根据这些附图获得其他的附图。
图 1是本发明实施例提供的汽车制动助力及控制装置集成模块示意图; 图 2 是本发明实施例提供的汽车制动助力及控制装置增压状态时的原理 图;
图 3 是本发明实施例提供的汽车制动助力及控制装置保压状态时的原理 图;
图 4 是本发明实施例提供的汽车制动助力及控制装置降压状态时的原理 图。 具体实施方式
为使本发明的目的、 技术方案和优点更加清楚, 下面将结合附图对本发明 实施方式作进一步地详细描述。
实施例
本实施例提供了一种汽车制动助力及控制装置, 请结合参见图 1至图 4, 由于该汽车制动助力及控制装置的技术特征较多,每一幅附图中没有对全部的 技术特征进行标注。
该汽车制动助力及控制装置包括: 储液罐 1、 高压气罐 2、 电子控制单元 3 (英文缩写 ECU )和助力及控制单元 4, 电子控制单元 3发出信号指示储液罐 1和高压气罐 2启动工作, 储液罐 1输送高压液体至助力及控制单元 4, 助力 及控制单元 4通过高压液体对汽车车轮实现辅助制动。助力及控制单元 4具有 活塞机构 41和四路车轮控制液压管路。 活塞机构 41分别与储液罐 1、 高压气 罐 2和四路车轮控制液压管路连通, 电子控制单元 3分别与活塞机构 41和四 路车轮控制液压管路电路连接,电子控制单元 3与汽车的制动踏板 5电路连接。
其中, 活塞机构 41包括活塞筒 411、 活塞 412和活塞回位弹簧 413 , 活塞 412和活塞回位弹簧 413设置在活塞筒 411内, 活塞 412在高压气体的推动下 可在活塞筒 411内移动, 同时也可在活塞回位弹簧 413的弹力作用下回位。 活 塞筒 411在侧壁上与储液罐 1连通,在活塞筒 411的侧壁上开设有两个进液口, 该两个进液口与储液罐 1连通。 同时, 在两个进液口相对侧的活塞筒 411侧壁 上开设有两个出液口, 该两个出液口各与二路车轮控制液压管路连通。 活塞筒 411在第一底壁上与高压气罐 2连通, 活塞回位弹簧 413设置在活塞 412与活 塞筒 411的第二底壁之间, 这样, 高压气罐 2内的高压气体的压力和活塞回位 弹簧 413的弹力对活塞 412构成推动力与反推动力。 优选地, 活塞机构 41与 高压气罐 2的连通管道具有进气管道 414和抽气管道 415, 在进气管道 414上 设置有第一电磁阀 416,在抽气管道 415上设置有第一单向阀 417和气泵 418, 第一电磁阀 416和气泵 418分别与电子控制单元 3电路连接。 这样, 当需要提 供制动助力 (踩下汽车的制动踏板 5 ) 时, 电子控制单元 3向第一电磁阀 416 输送信号, 开启该第一电磁阀 416, 高压气罐 2内的高压气体被输送到活塞机 构 41的活塞筒 411内, 并且推动活塞 412。 当不需要提供制动助力(松开汽车 的制动踏板 5 ) 时, 电子控制单元 3向气泵 418输送信号, 开启该气泵 418和 第一单向阀 417, 气泵 418将活塞筒 411内的高压气体抽回到高压气罐 2内, 活塞 412在活塞回位弹簧 413的作用下被推回到初始状态。
四路车轮控制液压管路包括右前轮控制液压管路 42、左后轮控制液压管路 43、 右后轮控制液压管路 44和左前轮控制液压管路 45 , 该四路车轮控制液压 管路分别与对应的车轮制动分泵连接。 即右前轮控制液压管路 42与右前轮的 车轮制动分泵连接, 右前轮控制液压管路 42向右前轮的车轮制动分泵输送高 压液体时, 右前轮的车轮制动分泵对右前轮实施液压制动; 左后轮控制液压管 路 43与左后轮的车轮制动分泵连接, 左后轮控制液压管路 43向左后轮的车轮 制动分泵输送高压液体时, 左后轮的车轮制动分泵对左后轮实施液压制动; 同 理, 右后轮控制液压管路 44与右后轮的车轮制动分泵连接, 左前轮控制液压 管路 45与左前轮的车轮制动分泵连接。 在汽车的右前轮、 左后轮、 右后轮和 左前轮的附件均设置有轮速传感器, 该四处的轮速传感器分别与电子控制单元 3电路连接。
具体地,右前轮控制液压管路 42包括第二单向阀 421、第一液压管路开关 422和第二电磁阀 423 , 第二单向阀 421和第一液压管路开关 422并联设置在 右前轮控制液压管路 42上, 第二电磁阀 423与电子控制单元 3电路连接。 第 二单向阀 421的两端分别与活塞筒 411侧壁上的一个出液口和右前轮的车轮制 动分泵连通,右前轮控制液压管路 42内的高压液体能够通过该第二单向阀 421 抽回到活塞筒 411内, 而活塞筒 411内的高压液体不能经过该第二单向阀 421 输送到右前轮控制液压管路 42的管路内。 第一液压管路开关 422具有第一液 压管路开关 A端口 424、第一液压管路开关 B端口 425和第一液压管路开关回 位弹簧 426, 第二电磁阀 423控制第一液压管路开关回位弹簧 426实现第一液 压管路开关 422的开闭。第一液压管路开关 A端口 424与活塞筒 411侧壁上的 出液口连通, 第一液压管路开关 B端口 425与右前轮的车轮制动分泵连通, 第 一液压管路开关回位弹簧 426能够在第二电磁阀 423的控制下推动第一液压管 路开关 422内的球塞关闭或者开启第一液压管路开关 A端口 424和第一液压管 路开关 B端口 425。 其工作原理是: 当需要制动时, 第二电磁阀 423控制第一 液压管路开关 A端口 424打开, 第二电磁阀 423控制第一液压管路开关 B端 口 425关闭,活塞筒 411内的高压液体经过第一液压管路开关 A端口 424进入 右前轮控制液压管路 42的管路内,从而进入右前轮的车轮制动分泵实施制动。 当需要持续制动 (即保持右前轮控制液压管路 42 内的压力) 时, 第二电磁阀 423控制第一液压管路开关 A端口 424和第一液压管路开关 B端口 425均处于 关闭状态, 即高压液力保持在右前轮控制液压管路 42 内, 从而使得右前轮持 续处于制动状态。 当不需制动(即松开制动踏板)时, 第二电磁阀 423控制第 一液压管路开关 A端口 424处于关闭状态,第二电磁阀 423控制第一液压管路 开关 B端口 425处于打开状态, 第二单向阀 421处于开启状态, 这样, 右前轮 控制液压管路 42 内的高压液体一部分通过第二单向阀 421 回输到活塞筒 411 内、 另一部分经过第一液压管路开关 B端口 425进入到第一储液管路 46内, 设置二条回流路径, 能够迅速地解除制动状态。
左后轮控制液压管路 43包括第三单向阀 431、第二液压管路开关 432和第 三电磁阀 433 , 第三单向阀 431和第二液压管路开关 432并联设置在左后轮控 制液压管路 43上, 第三电磁阀 433与电子控制单元 3电路连接。 第二液压管 路开关 432具有第二液压管路开关 A端口 434、 第二液压管路开关 B端口 435 和第二液压管路开关回位弹簧 436, 第三电磁阀 433控制第二液压管路开关回 位弹簧 436实现第二液压管路开关 432的开闭。
右后轮控制液压管路 44包括第四单向阀 441、第三液压管路开关 442和第 四电磁阀 443 , 第四单向阀 441和第三液压管路开关 442并联设置在右后轮控 制液压管路 44上, 第四电磁阀 443与电子控制单元 3电路连接。 第三液压管 路开关 442具有第三液压管路开关 A端口 444、 第三液压管路开关 B端口 445 和第三液压管路开关回位弹簧 446, 第四电磁阀 443控制第三液压管路开关回 位弹簧 446实现所述第三液压管路开关 442的开闭。
左前轮控制液压管路 45包括第五单向阀 451、第四液压管路开关 452和第 五电磁阀 453 , 第五单向阀 451和第四液压管路开关 452并联设置在左前轮控 制液压管路 45上, 第五电磁阀 453与电子控制单元 3电路连接。 第四液压管 路开关 452具有第四液压管路开关 A端口 454、 第四液压管路开关 B端口 455 和第四液压管路开关回位弹簧 456, 第五电磁阀 453控制第四液压管路开关回 位弹簧 456实现第四液压管路开关 452的开闭。
左后轮控制液压管路 43、 右后轮控制液压管路 44和左前轮控制液压管路 45中组成部件的连接和控制关系以及工作原理与右前轮控制液压管路 42的相 同, 在此不再——赘述。
优选地, 该汽车制动助力及控制装置还包括: 第一储液管路 46和第二储 液管路 47,第一储液管路 46与右前轮控制液压管路 42以及左后轮控制液压管 路 43并联设置, 第二储液管路 47与右后轮控制液压管路 44以及左前轮控制 液压管路 45并联设置。 第一储液管路 46的一端与活塞筒 411上的一个出液口 连通, 第一储液管路 46的第一端与第一液压管路开关 B端口 425以及第二液 压管路开关 B端口 435连通, 即在降压时, 右前轮控制液压管路 42内的高压 液体可经过第一液压管路开关 B端口 425进入到第一储液管路 46内, 左后轮 控制液压管路 43内的高压液体可经过第二液压管路开关 B端口 435进入到第 一储液管路 46内。 同样地, 第二储液管路 47的第一端与活塞筒 411上的另一 个出液口连通, 第二储液管路 47的第二端与第三液压管路开关 B端口 445以 及第四液压管路开关 B端口 455连通, 在降压时, 右后轮控制液压管路 44内 的高压液体可经过第三液压管路开关 B端口 445进入到第二储液管路 47内, 左前轮控制液压管路 45内的高压液体可经过第四液压管路开关 B端口 455进 入到第二储液管路 47内。 第一储液管路 46包括依次设置的第六单向阀 461、 第一液压泵 462、 第七单向阀 463和第一储液室 464, 第六单向阀 461与活塞 机构 41的出液口连通。 第二储液管路 47包括依次设置的第八单向阀 471、 第 二液压泵 472、 第九单向阀 473和第二储液室 474, 第八单向阀 471与活塞机 构 41的出液口连通。 第一液压泵 462和第二液压泵 472同时与电机 48连接。 这样, 电机 48驱动第一液压泵 462抽取右前轮控制液压管路 42和左后轮控制 液压管路 43内的高压液体回流到活塞机构 41内, 或者输入到第一储液室 464 内储存; 电机 48驱动第二液压泵 472抽取右后轮控制液压管路 44和左前轮控 制液压管路 45内的高压液体回流到活塞机构 41内,或者输入到第二储液室 474 内储存。
本发明的汽车制动助力及控制装置工作原理是:
当需要制动(即踩下制动踏板)时, 电子控制单元 3根据接收的信号控制 第一电磁阀 416开启, 使得高压气罐 2内的高压气体进入活塞筒 411内推动活 塞 412, 储液罐 1内的制动液通过四路车轮控制液压管路中打开的各液压管路 开关 A端口分别进入到四个车轮的制动分泵中, 从而产生制动力使整车制动。 其中, 制动液的流动路径参见图 2中箭头的指示方向。
当需要处于持续制动状态 (即制动助力及控制装置在保压工作状态) 时, 电子控制单元 3控制第一电磁阀 416关闭,使得高压气罐 2内的高压气体不再 进入活塞筒 411内,并且电子控制单元 3控制第二电磁阀 423、第三电磁阀 433、 第四电磁阀 443和第五电磁阀 453分别对应地关闭各自所处液压管路开关的 A 端口, 将高压制动液封闭在制动管路中, 从而使得制动管路中的制动压力保持 一恒定值。 其中, 制动液流动路径参见图 2中箭头的指示方向。
当松开制动踏板(即制动助力及控制装置在降压工作状态)时, 第一电磁 阀 416关闭, 第二电磁阀 423、 第三电磁阀 433、 第四电磁阀 443和第五电磁 阀 453分别对应地关闭各自所处液压管路开关的 A端口、打开各自所处液压管 路开关的 B端口, 气泵 418将活塞筒 411内的高压气体抽回到高压气罐 2中, 第一液压泵 462和第二液压泵 472将制动管路中的制动液泵回到储液罐 1以及 第一储液室 464或者第二储液室 474中,从而达到降低制动管路中液压的目的。 其中, 制动液流动路径参见图 2中箭头的指示方向。
以上所述仅为本发明的较佳实施例, 并不用以限制本发明, 凡在本发明的 精神和原则之内, 所作的任何修改、 等同替换、 改进等, 均应包含在本发明的 保护范围之内。

Claims

权 利 要 求 书
1、一种汽车制动助力及控制装置,其特征在于,所述装置包括:储液罐( 1 )、 高压气罐(2)、 电子控制单元(3)和助力及控制单元(4), 所述助力及控制单 元(4)具有活塞机构 (41)和四路车轮控制液压管路;
所述活塞机构 (41)分别与所述储液罐(1)、 所述高压气罐 (2)和所述四 路车轮控制液压管路连通, 所述电子控制单元(3)分别与所述活塞机构 (41 ) 和所述四路车轮控制液压管路电路连接。
2、 根据权利要求 1所述的汽车制动助力及控制装置, 其特征在于, 所述活 塞机构 (41) 包括活塞筒 (411)、 活塞(412)和活塞回位弹簧(413), 所述活 塞筒 (411 )在侧壁上与所述储液罐 ( 1)连通, 所述活塞筒 (411)在第一底壁 上与所述高压气罐 ( 2 )连通, 所述活塞回位弹簧( 413 )设置在所述活塞( 412 ) 与所述活塞筒 (411) 的第二底壁之间。
3、 根据权利要求 2所述的汽车制动助力及控制装置, 其特征在于, 所述活 塞机构 (41 ) 与所述高压气罐 (2) 的连通管道具有进气管道(414)和抽气管 道(415), 在所述进气管道(414)上设置有第一电磁阀 (416), 在所述抽气管 道(415)上设置有第一单向阀 (417)和气泵(418)。
4、 根据权利要求 3所述的汽车制动助力及控制装置, 其特征在于, 所述四 路车轮控制液压管路包括右前轮控制液压管路( 42 )、左后轮控制液压管路( 43 )、 右后轮控制液压管路(44)和左前轮控制液压管路(45), 所述右前轮控制液压 管路(42)、 所述左后轮控制液压管路(43)、 所述右后轮控制液压管路(44) 和所述左前轮控制液压管路(45)分别与对应的车轮制动分泵连接。
5、 根据权利要求 4所述的汽车制动助力及控制装置, 其特征在于, 所述右 前轮控制液压管路(42) 包括第二单向阀 (421)、 第一液压管路开关(422)和 第二电磁阀 (423 ), 所述第二单向阀 (421 )和所述第一液压管路开关 (422) 并联设置在所述右前轮控制液压管路(42)上, 所述第二电磁阀 (423 )与所述 电子控制单元(3) 电路连接;
所述第一液压管路开关(422)具有第一液压管路开关 A端口 (424)、 第一 液压管路开关 B端口 (425 )和第一液压管路开关回位弹簧(426), 所述第二电 磁阀 (423 )控制所述第一液压管路开关回位弹簧(426) 实现所述第一液压管 路开关(422) 的开闭。
6、 根据权利要求 5所述的汽车制动助力及控制装置, 其特征在于, 所述左 后轮控制液压管路(43) 包括第三单向阀 (431)、 第二液压管路开关(432)和 第三电磁阀 (433 ), 所述第三单向阀 (431 )和所述第二液压管路开关 (432) 并联设置在所述左后轮控制液压管路(43)上, 所述第三电磁阀 (433 )与所述 电子控制单元(3) 电路连接;
所述第二液压管路开关(432)具有第二液压管路开关 A端口 (434)、 第二 液压管路开关 B端口 (435 )和第二液压管路开关回位弹簧(436), 所述第三电 磁阀 (433 )控制所述第二液压管路开关回位弹簧(436) 实现所述第二液压管 路开关(432) 的开闭。
7、 根据权利要求 6所述的汽车制动助力及控制装置, 其特征在于, 所述右 后轮控制液压管路(44) 包括第四单向阀 (441)、 第三液压管路开关(442)和 第四电磁阀 (443 ), 所述第四单向阀 (441 )和所述第三液压管路开关 (442) 并联设置在所述右后轮控制液压管路(44)上, 所述第四电磁阀 (443)与所述 电子控制单元(3) 电路连接;
所述第三液压管路开关(442)具有第三液压管路开关 A端口 (444)、 第三 液压管路开关 B端口 (445 )和第三液压管路开关回位弹簧(446), 所述第四电 磁阀 (443 )控制所述第三液压管路开关回位弹簧(446) 实现所述第三液压管 路开关(442) 的开闭。
8、 根据权利要求 7所述的汽车制动助力及控制装置, 其特征在于, 所述左 前轮控制液压管路 (45) 包括第五单向阀 (451)、 第四液压管路开关(452)和 第五电磁阀 (453 ), 所述第五单向阀 (451 )和所述第四液压管路开关 (452) 并联设置在所述左前轮控制液压管路(45)上, 所述第五电磁阀 (453 )与所述 电子控制单元(3) 电路连接;
所述第四液压管路开关(452)具有第四液压管路开关 A端口 (454)、 第四 液压管路开关 B端口 (455 )和第四液压管路开关回位弹簧(456), 所述第五电 磁阀 (453 )控制所述第四液压管路开关回位弹簧(456) 实现所述第四液压管 路开关(452) 的开闭。
9、 根据权利要求 8所述的汽车制动助力及控制装置, 其特征在于, 所述电 子控制单元(3)与汽车的制动踏板 (5) 电路连接。
10、 根据权利要求 9所述的汽车制动助力及控制装置, 其特征在于, 所述 装置还包括: 第一储液管路(46)和第二储液管路(47),所述第一储液管路(46) 与所述右前轮控制液压管路(42) 以及所述左后轮控制液压管路(43) 并联设 置, 所述第二储液管路(47) 与所述右后轮控制液压管路(44) 以及所述左前 轮控制液压管路(45)并联设置;
所述第一储液管路(46) 包括依次设置的第六单向阀 (461)、 第一液压泵 (462)、 第七单向阀 (463 ) 和第一储液室 (464), 所述第六单向阀 (461 ) 与 所述活塞机构 (41) 的出液口连通;
所述第二储液管路(47) 包括依次设置的第八单向阀 (471)、 第二液压泵 (472)、 第九单向阀 (473 ) 和第二储液室 (474), 所述第八单向阀 (471 ) 与 所述活塞机构 (41) 的出液口连通;
所述第一液压泵(462)和所述第二液压泵(472) 同时与电机 (48)连接。
PCT/CN2013/080570 2012-11-27 2013-07-31 汽车制动助力及控制装置 WO2014082466A1 (zh)

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