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Method for compensating side-wind based on camera sensor of lkas in motor-driven power steering

An image sensor and auxiliary system technology, applied in the field of vehicle systems, can solve the driver's steering fatigue, compensation and other problems, and achieve the effects of relieving steering fatigue, improving efficiency, and shortening monitoring time.

Active Publication Date: 2013-05-22
HYUNDAI MOBIS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the technology in this patent only considers the driving characteristics of the driver. As shown in Figure 1-A, the vehicle is under the pressure of side wind, or as shown in Figure 1-B, when the vehicle is driving on an inclined road, that is, external factors affect the When the driver's going straight takes effect, the technical solution cannot compensate for the situation described
Therefore, in the prior art scheme, in order to keep going straight, the driver needs to directly compensate for the external force, so he must apply a steering force in the direction opposite to the external force. Constantly exerting force, which causes the driver to experience steering fatigue

Method used

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  • Method for compensating side-wind based on camera sensor of lkas in motor-driven power steering
  • Method for compensating side-wind based on camera sensor of lkas in motor-driven power steering
  • Method for compensating side-wind based on camera sensor of lkas in motor-driven power steering

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Embodiment Construction

[0015] The present invention will be described below in conjunction with the accompanying drawings and embodiments, which will make more forms of the above and the present invention clearer.

[0016] As shown in Fig. 2, it is a basic flow chart of crosswind compensation for the MDPS (Motor-Driven Power Steering) sidewind compensation system of the present invention.

[0017] During the running of the vehicle, the control unit first determines whether the vehicle is running at high speed in order to perform steering control of the crosswind compensation system (step S200 ). For example, the control unit judges that the vehicle is traveling at a high speed when the vehicle is traveling at a speed above 60kph. If it is determined that the vehicle is in a high-speed driving state, the control unit determines whether the vehicle is in a straight-going state (step S210 ). If it is judged that the vehicle is in the state of going straight, the control unit checks whether the lateral...

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Abstract

The invention provides a method for compensating side-wind based on a camera sensor of LKAS in motor-driven power steering. To compensate the side-wide, whether the vehicle is moving straightly is firstly determined. According to the invention, the method uses steering angles and steering angular velocity, and further obtains curvature information of front road, azimuth information among driveway and lateral displacement information relative to the lanes, and the determines whether the vehicle is moving straightly according to the above information. By using the above way, whether the vehicle is moving straightly can be accurately and rapidly determined, and then side-wind can be compensated.

Description

technical field [0001] The invention relates to a vehicle system, in particular to the steering technology in the vehicle system, in particular to an electric steering crosswind compensation method based on an image sensor used in a lane keeping assist system. Background technique [0002] Korean Patent No. 10-2006-0069679 has made the technology related to the electric steering gear that reflects the driving characteristics of the driver a well-known technology. This kind of electric steering gear judges the frequency and magnitude of acceleration and deceleration by the root mean square value of the acceleration on the one hand, and judges the frequency and magnitude of the driver's emergency steering by the root mean square value of the steering angular velocity on the other hand. This operation function reflecting the driving characteristics can increase or decrease the steering assist power according to the driver's driving characteristics, thereby ensuring the stabilit...

Claims

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Application Information

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IPC IPC(8): B60W30/12B60W40/072B62D5/04
CPCB60W30/12B60W10/20B60W40/072B60W2510/205B60W2540/18B60W40/105B62D6/10B60W2552/30B60W2520/10B60W2510/202B60Y2300/12B60W2420/403
Inventor 金斗炯
Owner HYUNDAI MOBIS CO LTD
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