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Steer-by-wire system with differential damping when entering and exiting corners

A wire-controlled steering and damping technology, applied to steering mechanisms, steering rods, mechanical steering gears, etc., can solve the problem of inability to distinguish whether a motor vehicle is entering or leaving a curve, and achieve the effect of improving steering feel

Active Publication Date: 2021-09-28
THYSSENKRUPP PRESTA AG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this context, the damping of the FBA according to the prior art is constant without being able to distinguish whether the motor vehicle is entering or exiting the curve

Method used

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  • Steer-by-wire system with differential damping when entering and exiting corners
  • Steer-by-wire system with differential damping when entering and exiting corners
  • Steer-by-wire system with differential damping when entering and exiting corners

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] like figure 1 The line control steering system 1 is shown. The rotation angle and the torque sensor (not shown) are mounted on the steering shaft 2, the rotation angle and the torque sensor senses the steering torque applied by the driver by rotating the steering wheel 3. Further, the feedback actuator 4 is mounted on the steering shaft 2, which is used to transmit the feedback effect from the road 70 to the steering wheel 3, and thus provide the driver with feedback from the steering and driving behavior of the vehicle. The driver's steering request is transmitted to the control unit 5 via the signal line 60 through the rotation angle of the steering shaft 2, which is measured by a rotation angle sensor. The control unit 5 actuates the electric steering actuator 6 based on the signal of the rotation angle sensor and other input variables such as vehicle speed, angular velocity, and the like, the electrical steering actuator 6 controls the position of the steering wheel 7. ...

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PUM

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Abstract

The invention relates to a steer-by-wire system (1) for a motor vehicle having a steering actuator (6) acting on a steering wheel (7) according to the driver's steering required and electronically closed-loop controlled, and the steering actuator acts on the steering wheel (7) through a rack steering device (8); and a feedback actuator (4), which will Feedback effects are transmitted to the steering wheel (3); wherein the steer-by-wire system (1) has an evaluation unit that analyzes the driving state for the presence or absence of a turn and has a damping device, wherein the damping device is configured to receive information from the evaluation unit and, depending on whether entering or exiting a curve, generates a damping signal which damps the torque present at said steering wheel (3).

Description

Technical field [0001] The present invention relates to a wire-controlled steering system for a motor vehicle, and a method for controlling a wire-controlled steering system. Background technique [0002] In the case of the wire control system, the positioning of the steering wheel is not directly coupled to the steering wheel. The steering wheel and the steering wheel are connected by electrical signals. The driver's steering request is split by the steering angle sensor, and the position of the steering wheel is closed by the steering actuator based on the steering requirements of the driver. The result of not providing mechanical connection to the wheel is: the steering wheel is not strong after being actuated - for example: feedback corresponding to the parking, where the reason is expected, the expected feeling is small; or in conventional The corresponding feedback in the forward direction is desired to feel the relatively large steering torque corresponding to the reaction...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D6/00
CPCB62D6/008B62D3/12B62D5/0472
Inventor 克里斯托夫·波尔曼斯
Owner THYSSENKRUPP PRESTA AG
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