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Driving combined steering system, torque control device and torque control method

A steering system and active technology, applied in automatic steering control components, steering mechanisms, steering rods, etc., can solve problems such as steering road feel and poor power assist adjustability, and achieve improved control accuracy, broad market application prospects, and improved steering stability. sexual effect

Active Publication Date: 2017-02-22
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
  • Description
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Problems solved by technology

[0007] Aiming at the deficiencies of the above-mentioned prior art, the purpose of the present invention is to provide an active compound steering system, a torque control device and a torque control method to solve the problem of the fixed transmission ratio of the steering system and the high speed of the hydraulic power steering system in the prior art. Problems such as steering feel and poor power assist adjustability under working conditions

Method used

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  • Driving combined steering system, torque control device and torque control method
  • Driving combined steering system, torque control device and torque control method
  • Driving combined steering system, torque control device and torque control method

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Embodiment Construction

[0046] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the embodiments and accompanying drawings, and the contents mentioned in the embodiments are not intended to limit the present invention.

[0047] refer to figure 1 As shown, an active compound steering system of the present invention includes: steering wheel 1, steering shaft 2, sensor module 3, planetary gear set 4, recirculating ball steering device 5, steering rocker arm 6, steering Straight tie rod 7, steering knuckle arm 8, steering trapezoidal arm 9, steering tie rod 10, wheels 11, electronic control unit (ECU) 12, corner correction module, steering assist module;

[0048] The steering wheel 1 is connected to the torque input end of the steering shaft 2, the sensor module 3 is placed between the steering wheel 1 and the steering shaft 2, and connected to the electronic control unit 12, the torque output end of the steerin...

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Abstract

The invention discloses a driving combined steering system, a torque control device and a torque control method. A rotation angle correction module in the driving combined steering system provides an additional rotation angle to a mechanical steering mechanism through a planetary gear mechanism, a steering motor and other mechanisms so as to achieve control over the variable transmission ratio of the steering system. A steering assistance module outputs assistance to the mechanical steering mechanism according to vehicle working conditions through an electric assistance execution mechanism and a hydraulic assistance execution mechanism. Good robustness and assistance tracking performance of the driving combined steering system are achieved.

Description

technical field [0001] The invention relates to the technical field of automobile power steering system control, and specifically refers to an active compound steering system, a torque control device and a torque control method. Background technique [0002] The traditional steering system with fixed transmission ratio is prone to dangerous working conditions such as heavy steering wheel at low speed and oversteer at high speed, which greatly affects the handling stability of the car. In recent years, the Active Front Steering (AFS) system has received extensive attention from experts and scholars at home and abroad. In addition to the traditional power steering function, the Active Front Steering system can apply active additional angles to the steering system on the basis of driver input. In this way, functions such as variable transmission ratio and steering intervention stability control are realized. [0003] BMW and ZF have jointly developed a mechanical active front ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D6/00B62D101/00B62D119/00
CPCB62D6/002
Inventor 栾众楷赵万忠王春燕
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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