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Electric power-assisted steering system of automobile

An electric power steering, automobile technology, applied in electric steering mechanism, automatic steering control components, steering mechanism, etc., can solve problems such as poor reliability of electronic control unit

Active Publication Date: 2013-04-03
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of poor reliability of the electronic control unit of the existing automobile electric power steering system, and to provide a highly reliable automobile electric power steering system

Method used

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  • Electric power-assisted steering system of automobile
  • Electric power-assisted steering system of automobile
  • Electric power-assisted steering system of automobile

Examples

Experimental program
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Embodiment 1

[0031] like Figure 1-4 As shown, this implementation provides an automotive electric power steering system with high reliability.

[0032] preferred, such as figure 1 As shown, the automotive electric power steering system mainly includes a steering wheel 1, an input shaft 2, a torque sensor 3, an electronic control unit (ECU) 4, a booster motor, a reduction mechanism 5, and an output shaft 6.

[0033] Among them, the torque sensor 3 is used to detect the magnitude and direction of the torque acting on the steering wheel 1 , and convert it into a voltage signal for the electronic control unit (ECU) 4 to use. The input shaft 2 transmits the torque on the steering wheel 1 .

[0034] The electronic control unit (ECU) 4 receives the input of the torque of the steering wheel 1, the vehicle speed, the engine status signal, etc. for analysis and decision-making, calculates the output applied to the drive circuit of the booster motor 7 and controls the pull-in state of the relay; t...

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Abstract

The invention provides an electric power-assisted steering system of an automobile, belonging to the technical field of automobile steering control. The electric power-assisted steering system of the automobile can solve the problem that the reliability of the electronic control unit of the existing electric power-assisted steering system of the automobile is poor. The electric power-assisted steering system of the automobile comprises an electronic control unit. The electronic control unit comprises a main microcontroller and a monitoring microcontroller which communicate with each other. The output signals of the main microcontroller and the monitoring microcontroller are output after gate operation is conducted. The electronic control unit has strong interference resisting capacity and the reliability of the electric power-assisted steering system of the automobile is improved.

Description

technical field [0001] The invention belongs to the technical field of automobile steering control, and in particular relates to an automobile electric power steering system. Background technique [0002] At present, automotive electric power steering system (EPS) has been widely used in the field of automotive power steering. The electric power steering mechanism mainly includes electronic control unit (hereinafter referred to as ECU), booster motor, relay, torque sensor, deceleration mechanism and other main components, among which ECU is the computing center of the whole system. However, EPS is generally installed near the engine, which will inevitably be affected by heat radiation and electromagnetic interference, which puts forward high reliability requirements for the EPS ECU unit. Contents of the invention [0003] The purpose of the present invention is to solve the problem of poor reliability of the electronic control unit of the existing electric power steering ...

Claims

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Application Information

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IPC IPC(8): B62D6/00B62D5/04B62D119/00B62D101/00
Inventor 段山保毛琦王陆林
Owner CHERY AUTOMOBILE CO LTD
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