Electronic parking brake system and control method thereof

A technology of parking brake and electronic control unit, applied in the direction of brake, brake transmission device, braking action starting device, etc., can solve the problems of increased size, expensive, complex structure, etc.

Inactive Publication Date: 2011-03-23
HL MANDO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The force sensor sensing the tension of the parking cable has a large size and a complicated structure, and is expensive, and therefore, the size of the electronic parking brake (EPB) system is also increased, and the manufacturing cost of the electronic parking brake (EPB) system is also increased. raised

Method used

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  • Electronic parking brake system and control method thereof
  • Electronic parking brake system and control method thereof
  • Electronic parking brake system and control method thereof

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Embodiment Construction

[0020] Reference will now be made in detail to embodiments of the invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

[0021] figure 1 is an example diagram of an electronic parking brake device according to an embodiment of the present invention, figure 2 is control figure 1 Block diagram of the electronic parking brake system of the electronic parking brake.

[0022] Such as figure 1 As shown, the electronic parking brake device is a cable puller type electronic parking brake device, which includes a motor 10 , a transmission mechanism 20 , a nut member 25 , a shaft 30 , a parking cable 40 and an elastic member 50 . The electronic parking brake system includes an electronic parking brake device, a brake 60 , a wheel 70 , a control lever 80 , an automatic parking switch 90 , an electronic control unit (ECU) 200 , a current sensor 110 and a hall sensor 120 .

[0023] The motor 10 ro...

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PUM

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Abstract

Disclosed herein are an electronic parking brake system and a control method thereof. The electronic parking brake system includes brakes, a parking cable to apply braking force to the brakes, a motor to apply tension to the parking cable, a current sensor to sense current of the motor, and an electronic control unit to judge the braking force of the brakes based on the current of the motor, and to control driving of the motor based on the braking force. The electronic parking brake system senses the tension of the parking cable using the small-sized current sensor, thereby easily obtaining a space in which the current sensor is installed and thus reducing a product size of the electronic parking brake system. Further, the electronic parking brake system senses the tension of the parking cable using the inexpensive current sensor, thereby reducing manufacturing costs of the electronic parking brake system and reducing costs of an electronic parking brake system product and a vehicle provided with the same.

Description

technical field [0001] Embodiments of the present invention relate to an electronic parking brake system that ensures a braking force of a cable puller type parking brake device, and a control method for the electronic parking brake system. Background technique [0002] In general, a braking system is a system that decelerates and stops a vehicle while maintaining the stopped state of the vehicle during driving. The braking system includes a parking brake device that decelerates and stops the vehicle while maintaining the stopped state of the vehicle during driving. [0003] The parking brake device is configured to pull a parking cable when a lever provided on a side of a driver's seat in a vehicle is operated, and then apply a braking force to a wheel connected to the parking cable, thereby maintaining The stopped state of the wheels, and, when the control lever is released, the park cable relaxes, thereby removing the braking force from the wheels. The operation method ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T8/171
CPCB60T11/046B60T13/746B60T13/74B60T7/00
Inventor 崔旭辰
Owner HL MANDO CORP
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