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Electrical power steering system and control method thereof

A technology of electric power steering and electronic control unit, which is applied in the direction of automatic steering control parts, electric steering mechanism, steering mechanism, etc., which can solve problems such as accidents, avoid side collisions, and increase driving safety.

Active Publication Date: 2010-06-16
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although many cars are equipped with reversing radar, the reversing radar can only play a certain role in reminding, and the specific steering operation is still done by the driver alone. possible accident while turning

Method used

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  • Electrical power steering system and control method thereof
  • Electrical power steering system and control method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0019] Such as figure 1 As shown (the arrow indicates the signal flow direction), the electric power steering system of this embodiment includes an electronic control unit 1, and the electronic control unit 1 is connected with a rotation angle, a torque sensor 2, a vehicle speed sensor 4, a vehicle speed acceleration sensor 10, and a yaw rate sensor. 5 and lateral acceleration sensor 6, power-assisted motor and its current sensor 7, reminder device 8 and distance measuring sensor 3, wherein the power-assisted motor is connected with the steering mechanism of the car through a transmission mechanism such as a reducer, and the rotation angle and torque sensor 3 is installed on the steering wheel 9 on the steering column, distance measuring sensors 2 are arranged on both sides of the car body.

[0020] The above-mentioned control method of the electric power steering system specifically includes the following steps:

[0021] According to the built-in control strategy, the electr...

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PUM

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Abstract

The invention provides an electrical power steering system with a side safety auxiliary function and a control method thereof, which aims to reduce the side collision rate of automobiles and guarantee the traveling safety. The electrical power steering system comprises an electronic control unit, and is characterized in that the electronic control unit is connected with a position / torque sensor of a steering wheel, a speed sensor, a speed acceleration sensor, a power motor and a current sensor thereof, a yaw velocity sensor and a side acceleration sensor. The power motor is connected with a steering mechanism of the automobile through a driving mechanism. The electronic control unit is also connected with distance testing sensors which are arranged at both sides of the automobile. On the basis that the traditional electrical power steering system provides the basis function of power-assisted steering for drivers, the invention also increases the function which uses the steering wheel torque to alert the side collision danger, uses the power motor to implement warning and danger elimination, is favorable for avoiding the automobile generating side collision with the objects at both sides, and increases the traveling safety.

Description

technical field [0001] The invention belongs to the technical field of automobile steering systems, and in particular relates to an electric power steering system and a control method thereof. Background technique [0002] Electric Power Steering System (EPS) is a power steering system that directly relies on electricity and does not need a hydraulic system to provide auxiliary torque. It has simple control and fast response. It can adjust the current value to change the torque according to the need, so as to improve the degree of power assistance conveniently. and sense of road. The electric power steering system has been widely used because of its few parts, light weight, compact installation, reliable operation, easy maintenance, adjustment and observation, excellent low temperature performance, easy matching with different models, and shortened development cycle. on various cars. [0003] The current electric power steering system only serves to assist the driver in st...

Claims

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Application Information

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IPC IPC(8): B62D5/04B62D6/00B62D101/00B62D103/00B62D119/00
Inventor 周宏
Owner CHERY AUTOMOBILE CO LTD
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