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Adaptive steering system and control method thereof

A steering control and steering system technology, applied in the field of auto parts, can solve problems such as not fully satisfying the driver, unable to fundamentally realize active steering, etc., to save manual steering operation, improve comfort and high-speed steering stability , the effect of stabilizing high-speed driving performance

Inactive Publication Date: 2009-05-20
CHERY AUTOMOBILE CO LTD
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Problems solved by technology

[0002] In the invention patent application with the application number 200510030562.1 as a known technology, an electric power steering system with integrated active steering function is disclosed. Angle sensor and yaw rate sensor input are processed, and by implementing a robust stability control module in the control system, the permanent magnet DC motor is finally controlled to implement active steering. Through this technology, we can achieve better operational stability of the vehicle, but its The disadvantage is that the function of active steering cannot be fundamentally realized, and it cannot fully meet the driver's wishes, but is only close to the function of active steering

Method used

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  • Adaptive steering system and control method thereof
  • Adaptive steering system and control method thereof
  • Adaptive steering system and control method thereof

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Embodiment Construction

[0036] Below, combine Figure 1-Figure 4 Describe this note in detail.

[0037] figure 1 During the steering operation, the steering wheel 1 will generate a torque signal 12. After the signal is provided to the steering control central ECU9, it will trigger two feedbacks, one is the steering force, and the other is the steering angle transmission ratio. The processing is the same as that done with conventional EPS. Only the selection of the steering angle transmission ratio is described here.

[0038] combined with figure 2 , 3 After the torque signal 12 is provided to the steering control center ECU9, the steering control center 9 extracts corresponding information from the CAN bus: the yaw rate signal 10, the steering wheel angle signal 11 and the vehicle speed signal 13, and calculates to determine whether the angular transmission ratio R needs to be changed , if the vehicle speed VVmax, execute according to Rmax, if Vmin≤V≤Vmax, select an appropriate angular transmis...

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Abstract

The invention discloses a self-adapting steering system and a control method. The self-adapting steering system comprises a steering-control central ECU, an EPS actuator, a changeable transmission-ratio actuator, a steering-wheel torque sensor, a speed sensor and a steering-wheel angle sensor. The steering-control central ECU receives torque signals, torque yaw angular velocity signals, steering wheel angle signals and speed signals through a CAN bus for calculation so as to define the steering force and angle transmission ratio R. The invention also comprises a yaw angular velocity sensor, a camera, a GPS and a position sensor. The CAN bus is adopted to receive the gear signals, image processing signals, position signals and GPS process signals for the processing so as to start the automatic steering function. The invention adopts various novel techniques to integrate a set of self-adapting steering system and makes use of various high-technique elements to realize the authentic active steering.

Description

technical field [0001] The invention belongs to the field of auto parts, in particular to an adaptive steering system and a control method thereof. Background technique [0002] In the invention patent application with the application number 200510030562.1 as a known technology, an electric power steering system with integrated active steering function is disclosed. Angle sensor and yaw rate sensor input are processed, and by implementing a robust stability control module in the control system, the permanent magnet DC motor is finally controlled to implement active steering. Through this technology, we can achieve better operational stability of the vehicle, but its The disadvantage is that the function of active steering cannot be fundamentally realized, and the driver's wishes cannot be fully satisfied, but only close to the function of active steering. Contents of the invention [0003] The purpose of the present invention is based on the existing EPS (electric power s...

Claims

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Application Information

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IPC IPC(8): B62D6/00B62D5/04B62D101/00B62D113/00B62D119/00
Inventor 顾兵
Owner CHERY AUTOMOBILE CO LTD
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