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Electric power steering control method and control unit

An electric power steering and control unit technology, applied in electric steering mechanism, power steering mechanism, steering mechanism, etc., can solve the problems of redundant structure and low execution efficiency, and achieves improved execution efficiency, fast switching process, and reduced algorithm complexity. Effect

Active Publication Date: 2022-03-29
SAIC MOTOR +1
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0014] 4. The power steering strategy designed based on the above-mentioned points 1-3 can be understood as patching on the basis of the manual steering control strategy, with a complicated structure and low execution efficiency

Method used

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  • Electric power steering control method and control unit

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Embodiment Construction

[0058] Embodiments of the present invention are described below through specific examples, and those skilled in the art can fully understand other advantages and technical effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through different specific implementation modes, and various details in this specification can also be applied based on different viewpoints, and various modifications or changes can be made without departing from the general design idea of ​​the invention. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other. The following exemplary embodiments of the invention may be embodied in many different forms and should not be construed as limited to the specific embodiments set forth herein. It should be understood that these embodiments are provided to make the disclosure of the present i...

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Abstract

The invention discloses an electric power steering control strategy, which is based on a manual steering control strategy, an intelligent assisted steering control strategy and an intelligent driving steering control strategy, including that if the intelligent assisted steering is enabled, and the manual steering power does not conflict with the vehicle network control command , then the intelligent assisted steering assist and manual steering assist are calculated according to the preset allocation rules to obtain the mixed assist; if the intelligent driving steering is enabled, the mixed assist is ignored; if the expected physical quantity of the intelligent assisted steering is consistent with the physical quantity of the intelligent driving steering , then the execution of intelligent assisted steering and intelligent driving steering is based on the same algorithm structure and parameter calculation to obtain the output torque, and the expectation of using intelligent assisted steering or intelligent driving steering is selected based on the demand for hand force. The invention also discloses an electric power steering control unit. The present invention is completely different from the existing electric power steering control strategy, can reduce algorithm complexity, realize corner control or torque control based on the same algorithm framework, and can switch between intelligent assisted steering mode and intelligent driving steering mode at any time.

Description

technical field [0001] The invention relates to the field of automobile intelligent driving, in particular to a control method for an electric power steering system. The invention also relates to a control unit for an electric power steering system. Background technique [0002] It has been 30 years since the traditional electric power steering system was first industrialized in the world. It can be said that both technical solutions and engineering levels are quite mature. The traditional electric power steering system refers to that when the driver turns through the steering wheel, the electric power steering system obtains the driver's steering intention through the hand force perception and the rotation angle measurement unit, and amplifies the driver's intention through the algorithm inside the electronic control unit To drive the motor to output torque to help the driver turn more easily. The goal of the traditional electric power steering system is to improve the dr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D5/04B60W30/18
CPCB62D5/0463B60W30/18145B60W2710/202
Inventor 张琼琰郭森罗来军罗毅
Owner SAIC MOTOR
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