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An electro-hydraulic braking system obtaining braking intent based on a motor

A hydraulic brake and electronic technology, applied in the direction of brake transmission, brake, transportation and packaging, etc., can solve the problems of complicated installation and high cost, and achieve the effect of improving safety, preventing inaccuracy and avoiding mutual interference

Pending Publication Date: 2019-01-15
EAST CHINA JIAOTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the electronic hydraulic braking systems now use various complex sensors, which are costly and complicated to install.

Method used

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  • An electro-hydraulic braking system obtaining braking intent based on a motor
  • An electro-hydraulic braking system obtaining braking intent based on a motor

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Embodiment Construction

[0016] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution will be clearly and completely described below in conjunction with the accompanying drawings of the present invention.

[0017] When braking, the driver depresses the pedal 1, and the pedal motion is transmitted to the first motor 34 through the first motion module 31, wherein the pedal 1 is connected to the lead screw 2, and the linear motion of the lead screw 2 is converted into the rotation of the lead screw nut 3, Wherein the lead screw nut 3 is fixedly connected with the motor rotor 4, the motor rotor 4 rotates, and the first motor 34 generates electricity to generate an induced electromotive force. The analog electrical signal is converted into a digital electrical signal by the AD converter 30 and transmitted to the electronic control unit 24. Combining the DC generator induced electromotive force formula, image, and mechanics formula to analyz...

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PUM

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Abstract

An electro-hydraulic braking system for obtaining braking intent based on a motor includes a pedal, a spring, a first motion module, a second motion module, a third motion module, a second motor, an electronic control unit, an electronic control circuit, an ABS / ESP module, and various hydraulic components. The first motion module is composed of a lead screw, a lead screw nut and a first motor. Thesecond motion module is composed of a screw nut, a gear, an electromagnetic clutch and a rack. The third motion module is composed of a worm, a turbine and a rack structure. The first motor can be used as a generator to obtain the driver's braking signal, and also as a motor to provide braking force to realize braking failure protection. The first motor replaces the sensor in the electro-hydraulic braking system, which saves the manufacturing cost. The mechanical connection between the pedal and the hydraulic cylinder and the two main hydraulic pipes of the two electric motors can prevent thebraking failure, thus greatly improving the safety of the automobile.

Description

technical field [0001] The invention relates to the technical field of automobile braking, in particular to an electro-hydraulic braking system based on an electric motor to obtain braking intention. Background technique [0002] Electro-hydraulic brake system (EHB) is a type of brake-by-wire. When the driver steps on the pedal, it does not need a mechanical connection to transmit the force of the driver's pedaling to the brake disc or brake drum. The principle is to obtain the driver's braking intention through devices such as pedal force sensors and displacement sensors, and then use the motor to provide braking force according to the driver's braking intention. [0003] At present, most electronic brake hydraulic systems are composed of brake pedal unit, hydraulic drive unit, brake execution unit, control unit, sensor and other parts. Most of the existing electronic hydraulic braking systems use a single motor and a single hydraulic pipeline. When the motor fails or the ...

Claims

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Application Information

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IPC IPC(8): B60T13/74B60T13/66
CPCB60T13/66B60T13/745
Inventor 陈齐平谢加超卢黎明黄宣钧樊翔翔鲁挺松赵硕
Owner EAST CHINA JIAOTONG UNIVERSITY