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Rear wheel steering device and control method thereof

A rear wheel steering device and rear wheel steering technology, applied in the direction of automatic steering control components, steering mechanisms, steering rods, etc., can solve problems such as other accidents, improve steering feel, prevent oversteering, and maintain vehicle stability Effect

Active Publication Date: 2018-02-27
HYUNDAI MOBIS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] As mentioned above, when a vehicle equipped with a rear-wheel steering device is running at a medium or high speed, the vehicle yaw (Yaw) is reduced in the case of sharp steering or evasive steering. Therefore, the driver may oversteer without realizing the response characteristics of the vehicle. cause other accidents

Method used

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  • Rear wheel steering device and control method thereof
  • Rear wheel steering device and control method thereof
  • Rear wheel steering device and control method thereof

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Embodiment Construction

[0029] A rear wheel steering device and a control method thereof according to an embodiment of the present invention will be described below with reference to the accompanying drawings. During the description, the thickness of some lines or the size of the constituent elements in the drawings are enlarged for the clarity and convenience of the description.

[0030] In addition, the following terms are defined according to the functions in the present invention, and may vary depending on the purpose or practice of different users and operators. Therefore, these defined terms shall be subject to the content of the entire specification.

[0031] figure 1 To show a block configuration diagram of a rear wheel steering device according to an embodiment of the present invention, figure 2 To show a schematic diagram of a stable state of a vehicle when a rear wheel steering device is used according to an embodiment of the present invention, image 3 It is a graph showing the stabil...

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PUM

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Abstract

A rear wheel steering system may include: a vehicle speed detection unit configured to detect a vehicle speed; a steering angle detection unit configured to detect a steering angle based on an operation of a steering wheel; a pinion angle detection unit configured to detect a pinion angle based on an operation of the steering wheel; a rear wheel driving unit configured to steer rear wheels; and a control unit configured to receive the vehicle speed, the steering angle, and the pinion angle from the vehicle speed detection unit, the steering angle detection unit, and the pinion angle detection unit, calculate a target rear wheel steering angle for steering the rear wheels, calculate a final rear wheel steering angle at which a steering point of the rear wheels is adjusted using a steering angle speed, the vehicle speed, and the pinion speed, and operate the rear wheel driving unit.

Description

technical field [0001] The present invention relates to a rear wheel steering device and a control method thereof, in particular to a rear wheel steering device and a control method thereof that adjust the timing of rear wheel steering during sharp steering in a medium-to-high speed section so that the driver can quickly realize the response characteristics of the vehicle. Background technique [0002] Active Front Steering (AFS) for vehicles consists of a motor, a reducer, and a controller, and actively changes the steering gear ratio of the front wheels according to the driving conditions of the vehicle to improve drivability and steering. [0003] In addition, the rear wheel steering system (RWS) is composed of a motor, a reducer and a controller, and steers the rear wheels of the vehicle according to the driving conditions of the vehicle to provide drivability and steering performance. [0004] Among them, the rear wheel steering device (RWS) steers the rear wheels in th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D6/00B62D101/00B62D113/00B62D137/00
CPCB62D7/159
Inventor 李掟敏
Owner HYUNDAI MOBIS CO LTD
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