System for controlling multiple car wheels turning accurately

A precise control and steering control technology, applied in the direction of automatic steering control components, steering mechanisms, steering rods, etc., can solve the problems of tire wear and other issues that cannot be taken into account at the same time, and achieve the effects of improving service life, reducing energy consumption, and solving sideslip

Inactive Publication Date: 2007-07-25
SPECIAL TRUCK CNHTC
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  • Summary
  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

This kind of steering control design is constrained by the rigid structure of the steering trapezoidal mechanism, and it cannot take into account that the instantaneous center of the vehicle's steering is consistent with the theoretical steering instantaneous center during two-wheel steering, four-wheel steering or even multi-wheel steering. This is the current four-wheel steering aircraft tractor. and other causes of severe tire wear on multi-wheel steer vehicles

Method used

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  • System for controlling multiple car wheels turning accurately

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Embodiment

[0012] Referring to Fig. 1, the automobile multi-wheel steering precise control system of the present embodiment is a four-wheel steering precise control system of an aircraft tractor, and it includes a steering control part and a steering execution part, and the steering control part includes various steering mode mathematical models , the microprocessor 1 of database and control program, steering wheel angle sensor 2, wheel angle sensor 3, described wheel angle sensor 3 is arranged on the steering axle 7, and steering wheel angle sensor 2 is coaxially arranged with steering wheel; Steering wheel angle sensor 2 will The steering wheel angle information is transmitted to the microprocessor 1, and the wheel angle sensor 3 transmits the wheel angle steering information to the microprocessor 1, and the microprocessor 1 issues instructions to the steering execution part to realize steering control.

[0013] In the automobile multi-wheel steering precise control system provided by t...

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Abstract

An accurate steering control system for the multiple wheels of a car is composed of a steering control unit consisting of a microprocessor containing the mathematical models for various steering modes, database and control program, the angle sensor for steering wheel and the rotation angle sensor for wheels, and a steering execution unit for individual steering of each wheel by rolling without lateral sliding.

Description

technical field [0001] The invention belongs to a control system of mechanical movement, and in particular relates to a multi-wheel steering control system of an automobile. Background technique [0002] Certain special vehicles require steering control of four or more wheels, as is the case with aircraft tractors. Known aircraft tractor steering system is made up of main components such as hydraulic pump, steady flow valve, hydraulic steering gear, hydraulic cylinder, steering drive axle, hydraulic pump is driven by engine or electric motor, hydraulic steering gear is coaxial with steering wheel, and hydraulic cylinder is contained in The axle is used to drive the wheels to turn. When the steering wheel turns, the high-pressure oil from the hydraulic pump will input an appropriate amount of high-pressure oil to the corresponding oil port of the hydraulic cylinder according to the direction of steering wheel rotation and the size of the rotation angle, so as to realize the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D6/00B62D7/14G05B19/04
Inventor 马旭峰李可爱陈莉王洪超王显洲王波
Owner SPECIAL TRUCK CNHTC
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