Automobile active steering system adopting differential power-assisted steering and control method thereof

A technology of power steering and active steering, applied in automatic steering control components, power steering mechanism, electric steering mechanism, etc., can solve the problems of small change range of transmission ratio, difficult processing, etc., to save the overall layout space, selection and complete vehicle. The effect of convenient matching, reducing vehicle quality and production cost

Pending Publication Date: 2018-11-13
JILIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there are some variable transmission ratio steering gears on the market, such as steering gears with variable pitch racks, the range of transmission ratio variation is small and difficult to process

Method used

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  • Automobile active steering system adopting differential power-assisted steering and control method thereof
  • Automobile active steering system adopting differential power-assisted steering and control method thereof
  • Automobile active steering system adopting differential power-assisted steering and control method thereof

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Experimental program
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Embodiment Construction

[0070] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0071] Such as figure 1 As shown, the automobile active steering system using differential power steering provided by the present invention includes a steering control mechanism 100, a corner coupling mechanism 200, a steering gear and a steering transmission mechanism 300, an independent wheel drive system, a signal acquisition device, and an active steering controller. and CAN bus.

[0072] Among them, the active steering controller is connected to the steering wheel angle and torque sensor through the analog signal line, and other on-board sensors, coupling motor controller and two drive motor controllers with the same structure are connected through the CAN bus to realize the active steering control of the vehicle.

[0073] The steering mechanism 100 includes: a steering...

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Abstract

The invention discloses an automobile active steering system adopting differential power-assisted steering. The automobile active steering system adopting differential power-assisted steering comprises wheel edge independent driving systems, a steering gear and steering transmission mechanism and a corner coupling mechanism, wherein the wheel edge independent driving systems are arranged on the inner sides of wheels and used for independent driving of the wheels on the left and right sides and can provide steering power assistance by using the driving force difference between the left and right wheels; the steering gear and steering transmission mechanism is fixed to a vehicle body and connected to the inner sides of left and right wheels for pulling the wheels to steer left and right; andthe output end of the corner coupling mechanism is connected to the steering gear and steering transmission mechanism, the corner coupling mechanism is provided with a first input end and a second input end, the first input end is connected to a steering control mechanism, and the second input end is connected to a coupling motor. The corner coupling mechanism has a wider transmission ratio variation range, and the selection of the coupling motor and the matching of the whole vehicle are facilitated. The invention further provides an automobile active steering control method adopting differential power-assisted steering.

Description

technical field [0001] The invention relates to an automobile active steering system. More specifically, the present invention relates to an automobile active steering system using differential power steering and a control method for automobile active steering using differential power steering. Background technique [0002] The performance of the automobile steering system has an important influence on the safety and handling stability of the automobile. Automobile steering system has been developed from the original mechanical steering system to the present. Although the performance is getting better and better, it has not fundamentally solved the contradiction between "lightness" and "spirit" of the steering system, and can only choose a more suitable fixed-value transmission ratio as a compromise. Although there are some steering gears with variable transmission ratios on the market, such as steering gears with variable pitch racks, the variation range of transmission ra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D11/04B62D5/04B62D3/10B62D6/00B62D113/00B62D119/00B62D101/00B62D137/00
CPCB62D3/10B62D5/0421B62D6/002B62D11/04Y02T10/72
Inventor 王军年郭德东罗正
Owner JILIN UNIV
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