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Electric power steering control method and control unit

A technology of electric power steering and control unit, which is applied in the direction of electric steering mechanism, power steering mechanism, steering mechanism, etc. It can solve the problems of low execution efficiency and complicated structure, and achieve the goal of fast switching process, improved execution efficiency and comfortable driving experience Effect

Active Publication Date: 2020-09-22
SAIC MOTOR +1
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  • Abstract
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  • Application Information

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 auxiliary steering control strategy and an intelligent drivingsteering control strategy. The electric power steering control strategy comprises that: if intelligent auxiliary steering is enabled and manual steering assistance does not contradict an automobile network control instruction, intelligent auxiliary steering assistance and manual steering assistance are adopted for calculation according to a preset distribution rule to obtain hybrid assistance; ifintelligent driving steering is enabled, the hybrid assistance is ignored; and if the physical quantity expected by the intelligent auxiliary steering and the physical quantity of the intelligent driving steering are kept consistent, the intelligent auxiliary steering and the intelligent driving steering execute calculation based on the same algorithm structure and parameters to obtain an outputtorque, and the expectation of the intelligent auxiliary steering or the expectation of the intelligent driving steering is selected based on the hand power demand. The invention further discloses anelectric power steering control unit. The electric power steering control method is completely different from an existing electric power steering control strategy, the algorithm complexity can be reduced, corner control or torque control based on the same algorithm architecture is achieved, and switching between an intelligent auxiliary steering mode and an intelligent driving steering mode can beachieved 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 Applications(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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