Lane keeping and automatic centering system and method based on deviation prediction algorithm

An automatic centering and lane keeping technology, applied in the field of lane keeping control, can solve problems such as complex kinematics of automobiles, achieve the effect of reducing traffic accidents, realizing stable control, and correcting the vehicle to return to the driving lane

Active Publication Date: 2015-03-25
CHONGQING CHANGAN AUTOMOBILE CO LTD
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Problems solved by technology

In addition, changes in the road environment complicate the car's kinematics

Method used

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  • Lane keeping and automatic centering system and method based on deviation prediction algorithm
  • Lane keeping and automatic centering system and method based on deviation prediction algorithm
  • Lane keeping and automatic centering system and method based on deviation prediction algorithm

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Embodiment Construction

[0047] The present invention will be further described below in conjunction with accompanying drawing.

[0048] Such as figure 1 and figure 2A lane keeping and automatic centering system based on a deviation prediction algorithm shown includes a camera 5 , a vehicle body controller 2 , a vehicle body electronic stability system 7 , an electric power steering system 4 and a lane keeping and automatic centering controller 6 . The camera 5 is installed behind the front windshield of the vehicle and in front of the interior rearview mirror of the vehicle, and is used to obtain the lane marking information of the road ahead of the vehicle and transmit it to the lane keeping and automatic centering controller 6 . The vehicle body controller 2 is used to obtain the current turn signal information of the vehicle and transmit it to the lane keeping and automatic centering controller 6 . The vehicle body electronic stabilization system 7 is used to acquire the current vehicle speed i...

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Abstract

The invention discloses a lane keeping and automatic centering system and method based on a deviation prediction algorithm. A lane keeping and automatic centering controller detects lane marking line information of a road ahead of a vehicle in real time through a camera; a vehicle body controller acquires current steering lamp information and headlamp information of the vehicle, and a vehicle body electronic stabilization system acquires current vehicle speed information of the vehicle; an electric power steering system acquires current steering angle information of the vehicle; an expected steering angle of the current vehicle is worked out through a deviation prediction algorithm and a PID control algorithm in the lane keeping and automatic centering controller, an expected steering angle signal is transmitted to the electric power steering system through a CAN to request for active steering, and the electric power steering system receives the expected steering angle signal and switches the current steering angle into the expected steering angle by rotating a steering wheel; meanwhile, a warning signal and a man-machine interaction signal are generated and transmitted to a vehicle warning system and a man-machine interaction interface through the CAN. The system and method can achieve the lane keeping and automatic centering functions.

Description

technical field [0001] The invention belongs to lane keeping control, in particular to a lane keeping and automatic centering system and method based on a deviation prediction algorithm. Background technique [0002] The lane keeping and automatic centering system uses the front-view camera to identify the marking line of the driving lane and calculates the relative position of the vehicle and the lane. When the vehicle deviates from the lane, the system generates an active deviation correction torque through the electric power steering system (EPS) to steer the vehicle Correct back into the lane of travel or keep the vehicle in the middle of the lane. The lane keeping and automatic centering system mainly includes lane keeping mode and automatic centering mode. In different working modes, the trigger timing of the active deviation correction function is different. [0003] Lane keeping mode: mainly based on the driver's operation. If the driver unconsciously causes the v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W30/12B60W30/045
CPCB60W30/045B60W30/12B60W2710/20B60W2720/14
Inventor 肖超李楠蒲果张强黎予生
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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