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Linear control based automobile steering system

An automobile steering system and control-by-wire technology, which is applied to steering mechanisms, steering rods, electric steering mechanisms, etc., can solve the problems of inability to steer and drive the steering-by-wire steering system without safety redundancy design, so as to improve reliability and safety Coefficients, effects for easy upgrades and assembly

Active Publication Date: 2009-12-09
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention is a research to overcome the shortcomings of the traditional automobile steering system, such as the inability to set the steering transmission ratio according to the driver's will, and the lack of safety redundancy design for the steer-by-wire system.

Method used

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  • Linear control based automobile steering system

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Embodiment Construction

[0022] The present invention will be described in detail below with reference to the accompanying drawings.

[0023] The car steering system based on wire control mainly includes: a signal acquisition part, a control unit part, a mechanical execution part and a fault-tolerant control part. Its structure consists of figure 1 As shown, the signal acquisition part mainly includes the steering wheel, the torque sensor 1, the reducer 2, the clutch 3, the road sensor motor 5, the current sensor 6 and the acceleration sensor 4 connected to the steering wheel, the torque sensor 1, the road sensor motor 5, the current sensor And the acceleration sensor 4 is connected to the ECU 14, and transmits relevant signals to the ECU 14, and at the same time, the ECU controls the operation of these components. The mechanical execution part mainly includes a steering motor 8, a clutch 9, a reducer 10, a rack and pinion steering gear 11, a displacement sensor 12, and a pull pressure sensor 13. The stee...

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Abstract

The invention discloses a linear control based automobile steering system, which comprises a signal acquisition part, a control unit part and a mechanical execution part and is characterized in that the signal acquisition part acquires a steering signal and a torque signal of a steering wheel, an angle signal of a wheel, a speed signal of the whole automobile, an acceleration signal and a side angular speed, and transmits the signals to the control unit part; and the control unit part analyzes and judges the signals, and outputs a control signal to control the motion of the mechanical execution part. The automobile steering system adopts the control of double motors, wherein an upper motor realizes real simulation of road induction, and a lower motor can realize the accomplishment of steering motion. Because the mechanical connection between the steering and the execution is cancelled, the steering and the execution have a modularized product respectively, so that the system is convenient to update and assemble so as to improve the safety factor of the automobile steering system.

Description

Technical field [0001] The invention belongs to the field of automobile steering, and particularly relates to an automobile steering system based on linear control. Background technique [0002] The corresponding characteristics of the vehicle's steering change with the vehicle speed and the steering angle of the steering wheel, which affects the steering stability of driving to a certain extent. In addition, [0003] Traditional automobile steering systems have disadvantages such as complicated system structure, high cost, and inconvenient installation, and the corresponding characteristics of automobile steering change with vehicle speed and steering wheel steering angle, which affects the steering stability of driving to a certain extent. At present, in the known technology, there is an electric power steering system with application number CN200410094938.0, which is composed of a steering torque detection device, an electric motor, a controller, and the like. The steering tor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D5/04B62D6/00B62D113/00B62D119/00B62D101/00B62D103/00B62D111/00
Inventor 陆均尧李娟娟
Owner CHERY AUTOMOBILE CO LTD
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