Intelligent vehicle steering mechanism and control method thereof

A technology of steering mechanism and intelligent vehicle, applied in steering mechanism, electric steering mechanism, automatic steering control components and other directions, can solve the problems of inaccurate steering angle, large space occupation, steering wheel follow-up phenomenon, etc. The effect of reliability, good driving experience

Active Publication Date: 2013-02-13
HUNAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the invention is an intelligent vehicle steering mechanism and its control method to solve the problems in the prior art

Method used

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  • Intelligent vehicle steering mechanism and control method thereof
  • Intelligent vehicle steering mechanism and control method thereof
  • Intelligent vehicle steering mechanism and control method thereof

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Embodiment Construction

[0027] The present invention will be further described in detail below in conjunction with specific embodiments and accompanying drawings.

[0028] see figure 1 , the steering mechanism of an intelligent vehicle includes a steering wheel (1), a torque sensor (2), a steering input shaft (3), a mode clutch (4), a worm gear reduction mechanism (5), a steering output shaft (6), a rotary encoder (7 ), DC brushless torque servo motor (8), safety clutch (9), steering gear (10), steering rack (11) and controller (12). The steering wheel (1) is connected to the steering input shaft (3) via the torque sensor (2);

[0029] The steering input shaft (3) is connected to the worm in the worm gear reduction mechanism (5) through the mode clutch (4), and the output shaft of the motor (8) is connected to the worm gear in the worm gear reduction mechanism (5) through the safety clutch (9). connected;

[0030] The torque sensor (2), mode clutch (4), rotary encoder (7), electric motor (8) and s...

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Abstract

The invention relates to an intelligent vehicle steering mechanism and a control method thereof. The intelligent vehicle steering mechanism comprises a steering wheel, a torque sensor, a steering input shaft, a mode clutch, a worm gear and worm speed reduction mechanism, a steering output shaft, a rotary encoder, an electric motor, a safety clutch, a steering gear, a steering rack and a controller, wherein the steering wheel is connected with the steering input shaft through the torque sensor; and the steering input shaft is connected with a worm in the worm gear and worm speed reduction mechanism via the mode clutch, and an output shaft of the electric motor is connected with a worm gear in the worm gear and worm speed reduction mechanism via the safety clutch. When a vehicle is driven in an unmanned manner, the controller can select a position servocontrol method to realize precision angle and angular speed control of an automatic control mode; when the vehicle is controlled manually, the controller can select a torque control method to realize good driving experience of a manual control mode; the high-reliability safety redundancy design can ensure the safety driving when a fault occurs in a system; and long-term cruise control can be realized.

Description

technical field [0001] The invention mainly relates to an intelligent vehicle steering mechanism and a control method thereof. Background technique [0002] With the continuous improvement of people's requirements for the safety and intelligence of vehicles and the needs of military affairs, intelligent vehicles have become a research hotspot. A reliable and accurate steering mechanism is an important guarantee for the realization of driverless vehicles, but there is no finalized intelligent vehicle steering control mechanism at present, and since the current intelligent vehicles are in the research and debugging stage, it is inevitable to carry out manual operations during vehicle driving. Intervention, which requires that the unmanned steering control mechanism can work in both the unmanned automatic control mode and the manual control mode. [0003] In order to solve the steering problem of intelligent vehicles, the common methods are 1. Use a stepper motor to drive thro...

Claims

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Application Information

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IPC IPC(8): B62D5/04B62D6/00B62D113/00B62D101/00B62D137/00
Inventor 王耀南申永鹏袁小芳孟步敏卢斌张小亮周翔
Owner HUNAN UNIV
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