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Motor steering purely-rolling device

A pure rolling, automobile technology, applied in steering mechanism, steering rod, fluid steering mechanism, etc., can solve the problem of complex structure of automobile steering mechanism, and achieve the effect of simplifying control strategy and improving work efficiency

Inactive Publication Date: 2015-02-25
CHONGQING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The automobile steering mechanism mentioned in the patent has a complicated structure

Method used

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  • Motor steering purely-rolling device

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Embodiment Construction

[0012] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0013] The invention is an automobile steering mechanism, which is used in cooperation with the automobile chassis, used for steering the front wheels of the automobile and satisfying the Ackermann principle.

[0014] Such as figure 1 As shown, the automobile steering pure rolling device includes a steering wheel 1, a steering gear 3, and a steering shaft 2. One end of the steering shaft 2 is connected to the steering wheel 1, and the other end of the steering shaft 2 is connected to the input end of the steering gear 3.

[0015] It also includes a left steering mechanism that drives the left wheel 151 of the vehicle to rotate. The left steering mechanism has a turnable left rocker arm 4, a left pull rod 5, a left knuckle arm 6, and a left steer...

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Abstract

The invention discloses a motor steering purely-rolling device which is matched with an underpan for use. The motor steering purely-rolling device comprises a steering wheel, a steering gear, a steering shaft, a left steering mechanism for driving a left wheel of a vehicle to rotate and a right steering mechanism for driving a right wheel of the vehicle to rotate, and an auxiliary steering mechanism, wherein the right steering mechanism is provided with a left steering arm with a first angle sensor, a closed oil path unit comprising a left steering trapezoidal pull rod, a first hydraulic cylinder, a second hydraulic cylinder, a right steering trapezoidal pull rod, and a right steering arm with a second angle sensor; and the auxiliary steering mechanism comprises an assisting motor, a steering right rocker arm, a steering right pull rod and a steering right knuckle arm, the steering right rocker arm, the steering right pull rod and the steering right knuckle arm are sequentially rotatably connected, and the output end of the steering right section arm is rotatably connected with the input end of a right knuckle. According to the invention, a section-control mode is adopted for a control strategy of an ECU (Electronic Control Unit), so that the front wheel toe-in and Ackermann angle relationship can be well approximately met under different wheel angle states, the control strategy of the ECU is simplified, and the working efficiency of a steering mechanism is increased.

Description

technical field [0001] The invention relates to an automobile steering mechanism, in particular to an automobile steering pure rolling device. Background technique [0002] The traditional steering mechanism is developed based on the Ackerman steering theory, but this theory is only an ideal state when the vehicle is turning. There must be a state of rolling and sliding when the actual vehicle is turning. The existing technology adjusts the steering trapezoidal shape of the steering mechanism. The geometric parameters can only approximately satisfy the Ackermann rotation angle relationship, and cannot guarantee that the steering wheel can perform pure rolling steering around the steering center. This error caused by the steering trapezoid will aggravate the wear of the steering wheel, increase the steering resistance, and also cause the side slip of the vehicle, which will affect the driving stability and driving comfort. Further, the patent with the authorized notification...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D5/06B62D7/16
Inventor 张君李恩科李常鑫胡飞苏道齐王杰
Owner CHONGQING UNIV OF TECH
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