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Vehicle braking system

A vehicle brake and brake pedal technology, which is applied in the direction of brakes, vehicle components, brake transmissions, etc., can solve the problems of difficult space layout and achieve the effect of compact structure, high reliability and convenient layout

Active Publication Date: 2013-10-02
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the defect of difficult spatial arrangement of existing vehicle brake systems, and provide a vehicle brake system with a compact structure and easy layout.

Method used

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Embodiment Construction

[0015] Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0016] Such as figure 1 As shown, the present invention provides a braking system for a vehicle, the braking system comprising:

[0017] a brake pedal 1 which is manipulated to cause the vehicle braking system to apply a braking force to the wheels of the vehicle;

[0018] A hydraulic control valve 2, the hydraulic control valve 2 includes a valve body 22 with a valve cavity 21 and a valve core 23 capable of moving in the valve cavity 21, the valve body 21 is provided with an oil inlet 24 and an oil outlet 25 And the oil return port 26, the end of the valve core 23 located outside the valve body 22 is connected with the brake pedal 1, through the drive of the brake pedal 1, the valve core 23 can chamber 21 to control the connection and closure of the oil inlet 24, oil outlet 25 and oil return port 26;

[0019] A hydraulic power source 5, whic...

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Abstract

The invention discloses a vehicle braking system, which comprises a brake pedal, a hydraulic control valve, a hydraulic power source, a fuel storage tank, a brake cylinder, a sensor and a controller. The hydraulic control valve is provided with a fuel inlet, a fuel outlet and a fuel return port and is used for controlling connection and disconnection of the fuel inlet, the fuel outlet and the fuel return port; the hydraulic power source comprises a fuel storage tank, a high-pressure fuel storage device and a hydraulic pump driven by a motor, wherein the fuel storage tank is communicated with the fuel return port through a hydraulic pipeline, the fuel storage tank, the hydraulic pump and the high-pressure fuel storage device are all communicated through hydraulic pipelines, the hydraulic pump can deliver hydraulic fuel in the fuel storage tank into the high-pressure fuel storage device, a one-way valve is arranged between the hydraulic pump and the high-pressure fuel storage device, the hydraulic fuel can only flow from the hydraulic pump to the high-pressure fuel storage device, and the high-pressure fuel storage device is communicated with the fuel inlet through a hydraulic pipeline; the brake cylinder is communicated with the fuel outlet; the sensor is used for detecting the pressure of the hydraulic fuel in the high-pressure fuel storage device; and the controller is electrically connected with the sensor and the motor and is used for controlling the motor according to the detection value of the sensor. The vehicle braking system has the advantages of compact structure and high reliability.

Description

technical field [0001] The present invention relates to a vehicle braking system, more specifically, to a braking system for an electric vehicle or a hybrid vehicle. Background technique [0002] For traditional vehicles powered by engines, vacuum-assisted hydraulic braking devices are usually used. effect. For some engineering vehicles, a hydraulic braking system is usually used, and in this hydraulic braking system, an engine needs to drive a hydraulic pump to generate a high-pressure power source. [0003] However, no matter which way, if the traditional braking system wants to obtain the braking effect, it must rely on the power of the engine. However, for hybrid vehicles, in the electric mode, the engine does not work, so the traditional braking system cannot play a braking role in this case; engine, so the traditional braking system is completely unsuitable. [0004] For this reason, Chinese utility model patent CN201128414Y proposes a kind of electric vehicle vacu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T13/12B60T13/14B60T7/04B60T8/17
Inventor 余建浈
Owner BYD CO LTD
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