Disc type brake-by-wire system based on magnetostrictive material and control method thereof

A magnetostrictive material, brake-by-wire technology, applied in brakes, brake components, brake transmission devices, etc., can solve the problems of difficult brake control, unfavorable light weight, poor brake stability, etc.

Pending Publication Date: 2020-04-07
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] On the whole, the brake systems currently on the market have the following disadvantages: 1. It is difficult to control the hydraulic system electronically, it is not easy to integrate with other electronic control systems, and it is not conducive to light weight; 2. The motor volume of the mechanical system without self-energizing mechanism , high quality and energy consumption; 3. The braking control of the mechanical system with self-energizing mechanism is difficult and the braking stability is poor

Method used

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  • Disc type brake-by-wire system based on magnetostrictive material and control method thereof
  • Disc type brake-by-wire system based on magnetostrictive material and control method thereof
  • Disc type brake-by-wire system based on magnetostrictive material and control method thereof

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Embodiment Construction

[0079] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the embodiments and accompanying drawings, and the contents mentioned in the embodiments are not intended to limit the present invention.

[0080] refer to Figure 1 to Figure 4 As shown, a disc brake-by-wire system based on magnetostrictive material of the present invention includes: brake pedal module, left front brake 2, right front brake 30, left rear brake 13, right rear brake 18, left front wheel 1, Right front wheel 29, left rear wheel 12, right rear wheel 17, control module, power supply (Power) 15, current regulation module (CRM) 16 and parking brake module;

[0081] The brake pedal module includes: a brake pedal 3, a pedal bracket 10, a pedal shaft 5, a connecting rod 6, a push rod 7, a fastening screw 54 and a pedal feeling simulator 9;

[0082] The input end of the pedal shaft 5 is fixedly connected to the output en...

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Abstract

The invention discloses a disc type brake-by-wire system based on magnetostrictive material and a control method thereof. The disc type brake-by-wire system comprises a brake pedal module, a left front brake, a right front brake, a left rear brake, a right rear brake, a left front wheel, a right front wheel, a left rear wheel, a right rear wheel, a control module, a power source, a current adjusting module and a parking brake module. According to the system, by means of the characteristics of a magnetostrictive material, the magnetostrictive material serves as a driving source and controls thebraking system by controlling the current in a magnet exciting coil. Due to the fact that traditional hydraulic drive is replaced by magnetostriction drive, the defects of an electric control hydraulic brake system are eliminated. Compared with a mechanical brake-by-wire system, the brake-by-wire system is simple in structure, light in weight, small in size, low in energy consumption and beneficial to control.

Description

technical field [0001] The invention belongs to the technical field of automobile brake-by-wire systems, and specifically refers to a disc-type brake-by-wire system based on magnetostrictive materials and a control method thereof. Background technique [0002] Magnetostrictive material is a new type of intelligent material. When it is magnetized in a magnetic field, it will elongate or shorten in the direction of magnetization, and it can control the deformation by regulating the current in the coil. The material has the characteristics of fast magnetization deformation response and large deformation output energy, and can be used for micro-displacement driving. [0003] The brake-by-wire system is an electronically controlled brake system, which is divided into a hydraulic brake-by-wire system and a mechanical brake-by-wire system. [0004] The hydraulic brake-by-wire system (EHB) is developed from the traditional hydraulic brake system, but it is very different from the t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T13/74B60T7/10B60T7/04B60T7/06B60T1/06
CPCB60T13/748B60T7/101B60T7/042B60T7/06B60T1/065
Inventor 张自宇王春燕王一松赵万忠何鹏秦亚娟刘晓强
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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