Brake control method of automobile brake-by-wire system and electric brake

An electric brake and brake control technology, applied in electric braking systems, brakes, electric vehicles, etc., can solve the problems of high price, poor braking accuracy, slow braking response, etc., and achieve simple structure, reliable braking, Responsive effect

Inactive Publication Date: 2012-04-18
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional hydraulic brake has defects such as complex structure, inconvenient installation, high price, failure to be monitored in real time, and slow brake response.
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Method used

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  • Brake control method of automobile brake-by-wire system and electric brake
  • Brake control method of automobile brake-by-wire system and electric brake
  • Brake control method of automobile brake-by-wire system and electric brake

Examples

Experimental program
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Example Embodiment

[0018] Such as figure 1 As shown, each wheel is equipped with an electric brake and a wheel speed sensor. Such as Figure 4 As shown, the electric brake includes a brake caliper body 1, a motor 7, and also includes a lead screw 3 and a lead screw nut 2. The motor can drive the lead screw nut 2 to rotate through the reduction mechanism 5, and the lead screw nut drives the lead screw to make a feed movement. brake. A power-loss brake 6 is provided at the end of the motor output shaft. A butterfly spring 4 is provided at the outer end of the screw.

[0019] During the braking operation, the power-off brake 6 is energized, and the motor 7 rotates forward to output torque. The torque is transmitted to the screw nut 2 after the deceleration mechanism 5 decelerates and increases the torque. The screw nut 2 rotates to drive the screw 3 to feed. . At the same time, when the power-off brake 6 is energized, the butterfly spring 4 releases the preload pressure and pushes the lead screw 3...

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Abstract

The invention relates to a brake control method of an automobile brake-by-wire system and an electric brake. The brake mode comprises a travelling braking mode and a parking braking mode; in the travelling braking mode, an electronic brake pedal sends a travelling braking signal to a control unit, and the control unit drives the electric brake to realize travelling brake through a driving unit according to the travelling braking signal; and in the parking braking mode, a parking button sends a parking braking signal to the control unit, and the control unit drives the electric brake to realize parking brake through the driving unit according to the parking braking signal.

Description

technical field [0001] The invention relates to a braking control method and an electric brake of an automobile wire-controlled braking system. Background technique [0002] At present, most vehicle braking systems at home and abroad are still based on hydraulic energy transfer systems to achieve vehicle braking. However, the traditional hydraulic brake has defects such as complex structure, inconvenient installation, high price, failure to be monitored in real time, and slow brake response. The disadvantages of the existing few automobiles that adopt the brake-by-wire system are: inconvenient use, poor braking accuracy, and the structure of the electric brake is relatively complicated. Contents of the invention [0003] The object of the present invention is to provide a brake control method and an electric brake of an automobile brake-by-wire system, which are reliable in operation and easy to use. [0004] The present invention is based on the same inventive concept a...

Claims

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Application Information

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IPC IPC(8): B60L7/00B60T8/176
Inventor 张世兵高国兴王陆林
Owner CHERY AUTOMOBILE CO LTD
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