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Steer-by-wire system for two-track vehicle

A technology of steer-by-wire and steering system, which is applied to vehicle parts, steering mechanisms, steering rods, etc., which can solve problems such as inability to ensure driver alarm feedback, and achieve reliable detection, ensure driving safety, and easy detection

Pending Publication Date: 2022-04-22
AUDI AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A disadvantage, however, is that the tactile feedback generated on the steering wheel is superimposed on one another, so that it cannot be ensured that the driver perceives the warning feedback reliably in all driving situations

Method used

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  • Steer-by-wire system for two-track vehicle
  • Steer-by-wire system for two-track vehicle
  • Steer-by-wire system for two-track vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0050] exist figure 1 The structure of the steer-by-wire system 1 provided in the dual-track vehicle 3 is shown in . The steer-by-wire system 1 has a steering wheel 5 as a steering operation member, which is equipped with a steering sensor 7 and a feel actuator 9 . The steering sensor 7 and the feel actuator 9 are connected / connected in a signal-transmitting mode with the steering gear actuator 13 and the steering gear sensing system 15 which are assigned to the steering gear 17 through the controller 11 connected in the middle. The transmission mechanism 17 is in transmission connection with the front wheels 19 of the vehicle 3 .

[0051]In order to carry out the steering process, the steering sensor 7 detects the rotational position or the rotational movement of the steering wheel 5 and thereby generates a steering command which is transmitted to the controller 11 . The controller 11 actuates the steering actuator 13 in response to the steering command, and subsequently ad...

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PUM

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Abstract

The invention relates to a steer-by-wire system for a vehicle. The steer-by-wire system comprises a steering operation member; a steering gear actuator mechanically separated from the steering operator; the steering sensor is used for detecting the rotating position and / or rotating motion of the steering operation piece as a steering instruction; the electronic controller is used for controlling the steering transmission mechanism actuator according to the detected steering instruction so as to adjust the steering angle of the wheel; a hand-feel actuator operable by the controller generates haptic feedback to the driver on the steering operator, i.e. Haptic steering feedback to apply a steering reaction torque to the steering operator, lane feedback related to interference of a lane on the vehicle, and alert feedback to inform the driver of a malfunction condition of the steer-by-wire system. According to the invention, an evaluation unit is associated with the control unit, by means of which the haptic lane feedback can be at least weakened or deactivated in the presence of a steering system malfunction as compared to the normal operation of the steering system without a steering system malfunction.

Description

technical field [0001] The invention relates to a steer-by-wire system for a two-track vehicle according to the preamble of claim 1 and to a method for operating a steer-by-wire system according to claim 10 . Background technique [0002] Like conventional electromechanical steering systems, this type of steer-by-wire system also has a steering wheel and a steering gear. However, unlike conventional steering systems, in steer-by-wire systems there is no steering column, so that there is no mechanical connection between the steering wheel and the steering gear. The steering wheel and steering gear are thus mechanically decoupled from each other and controlled entirely electronically via force and stroke control. For electronic control, the steering system has a steering sensor and a controller as well as a steering gear actuator for actuating the steering gear. The steering sensor detects / acquires the steering desire given by the driver by means of the rotational position a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D6/00B62D5/04B62D113/00
CPCB62D6/00B62D5/0457B62D15/029B62D5/0484B62D5/001B62D5/0481B62D6/008B62D5/006
Inventor A·米宁格
Owner AUDI AG