Parking assisting system and method based on electric power steering system
An electric power steering and parking assist technology, applied in electric steering mechanism, automatic steering control components, steering mechanism, etc., can solve the problems of indistinguishable, high cost, complicated control, etc., to ensure safety, simple control, real-time high sex effect
Active Publication Date: 2017-03-01
DONGFENG MOTOR CORP HUBEI
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Problems solved by technology
However, the ordinary EPS system only has a single function of power steering. With the continuous development of automobiles towards intelligence, consumers have also put forward higher demands for driving convenience, which solves the difficult parking operation of parallel parking in a small space. Assistance systems are gradually becoming popular from a few high-end models
The control of traditional parking assistance system is complex and costly, so it is not suitable for low-end models
Moreover, the traditional parking assistance system cannot distinguish between normal road friction and driver intervention, and the safety of the parking process is low.
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[0024] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
[0025] Such as figure 1 As shown, a parking assist system based on an electric power steering system includes a parking assist controller APA, an electric power steering system EPS, a steering mechanism group, a motor, an electronic body stability system ESC, an angle torque sensor, a radar probe, and an instrument unit IC.
[0026] The parking assist controller APA is the main control unit of the parking assist system, which can collect the distance information fed back by the radar probe, drive the instrument IC to interact with the driver, and send the corner command to the EPS, so as to realize the entire parking assist control. The electric power steering system EPS is the control unit of the vehicle steering, which can not only realize the speed-dependent power steering in the normal driving of the driver, but also switch to the automatic...
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The invention relates to the technical field of automotive electronics, in particular to a parking assisting system and method based on an electric power steering system. Distance information about a vehicle and a surrounding obstacle is acquired in real time to establish a dynamical model and calculate the best parking track, a target turn angle of a steering wheel is calculated in real time according to a wheel speed signal and a steering wheel turn angle signal, and parking assisting turning is achieved according to a fed-back steering wheel angle signal. The target turn angle is calculated by utilizing APA and is executed based on the electric power steering system, parking assisting steering is achieved, and the system is simple to control and low in cost.
Description
technical field [0001] The invention relates to the technical field of automotive electronics, in particular to a parking assistance system and method based on an electric power steering system. Background technique [0002] Electric power steering system EPS has replaced the traditional hydraulic steering system and become the standard configuration of many mainstream models due to its remarkable advantages in terms of fuel saving, environmental protection, handling feel and simple structure. However, the ordinary EPS system only has a single function of power steering. With the continuous development of automobiles towards intelligence, consumers have also put forward higher demands for driving convenience, which solves the difficult parking operation of parallel parking in a small space. Assistance systems are also gradually becoming popular from a few high-end models. Traditional parking assistance systems are complex to control and costly, and are not suitable for low-...
Claims
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IPC IPC(8): B62D6/00B62D15/02B62D5/04B62D101/00B62D113/00B62D119/00
CPCB62D5/04B62D6/00B62D15/0285B62D15/029
Inventor 陈开慧
Owner DONGFENG MOTOR CORP HUBEI