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Pure drive-by-wire automobile braking system

A car braking system and wire control technology, applied in the direction of brakes, brake transmissions, vehicle components, etc., can solve the problems of short life, complex hardware, etc., achieve shortened braking distance, wide application range, improve stability and The effect of braking efficiency

Active Publication Date: 2019-06-25
合肥庐阳科技创新集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies in the prior art, the present invention proposes a pure wire-by-wire vehicle braking system, in order to solve the problems of complex hardware and short service life of the existing wire-by-wire brake system, so that it can be realized under certain conditions of hardware foundation Various active safety system functions

Method used

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  • Pure drive-by-wire automobile braking system
  • Pure drive-by-wire automobile braking system
  • Pure drive-by-wire automobile braking system

Examples

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Embodiment Construction

[0035] see figure 1 , in this embodiment, a pure brake-by-wire vehicle brake system includes: a magneto-rheological transmission brake-by-wire, a sensor subsystem, an upper controller ECU and a lower controller UC, and the UC is in figure 1 Expressed as C1, C2, C3 and C4, corresponding to four wheels respectively;

[0036] The sensor subsystem includes: brake pedal module, wheel speed sensor, clamping force sensor, vehicle speed sensor, longitudinal acceleration sensor, lateral acceleration sensor, steering wheel angle sensor, displacement sensor and yaw rate sensor;

[0037]The upper controller ECU includes: deceleration brake module, anti-lock brake module, body stability control module, gap self-adjustment module, electronic parking module;

[0038] see figure 2 , the magnetorheological drive-by-wire brake is composed of a motor, a motor controller, a magnetorheological clutch MRC, a deceleration mechanism and a floating caliper mechanism; when the vehicle decelerates an...

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Abstract

The invention discloses a pure drive-by-wire automobile braking system. The system comprises a magnetorheological transmission drive-by-wire brake, a sensor subsystem, an upper-layer controller ECU and lower-layer controllers UC. The system adopts a hierarchical control method for upper and lower layers, and the upper-layer controller ECU acquires the motion posture of a vehicle and the control intention of a driver according to system state information fed back by the sensor subsystem and controls the magnetorheological transmission drive-by-wire brake to achieve braking through the lower-layer controllers UC. The system can solve the problems of complex hardware and short service life of an existing drive-by-wire braking system and achieve various active safety system functions under thecondition of a certain hardware basis.

Description

technical field [0001] The invention relates to the technical field of automobile electronic control, in particular to an electronic braking system for automobiles, in particular to an automobile electronic braking system and a control method for a multi-active safety system of a magneto-rheological drive-by-wire brake. Background technique [0002] With the development needs of intelligent / unmanned vehicles, brake-by-wire technology has developed rapidly, such as electro-hydraulic brake systems and electro-mechanical brake systems. The brake-by-wire system cancels the pipeline connection between the brake pedal and the brake wheel cylinder, and uses electrical signals as the medium of information transmission. The electronic control unit recognizes the driver's braking intention according to the relevant sensor signals, and controls the action of the actuator. Preventing or slowing down the rotation of automobile wheels has the advantage of easy integrated control and meets...

Claims

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Application Information

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IPC IPC(8): B60T13/74B60T8/1755B60T8/176
Inventor 白先旭段顺昌
Owner 合肥庐阳科技创新集团有限公司
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