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Apparatus and method for controlling motor drive power steering system

A technology of power steering and electric motor, applied in control devices, power steering mechanisms, electric steering mechanisms, etc., can solve the problems of MDPS transient control stability reduction, etc., to reduce abnormal vehicle behavior and steering vibration, stabilize control, and ensure control stability. sexual effect

Active Publication Date: 2022-01-14
HYUNDAI MOBIS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The present disclosure is made to solve the above-mentioned problems, and an object according to one aspect of the present disclosure is to provide an apparatus and method for controlling a motor-driven power steering system, by solving the problem of switching from an automatic driving mode to an MDPS system in the prior art The problem of unconditionally requiring a predetermined time when entering the manual driving mode can quickly cancel the automatic driving mode and enter the manual driving mode when turning suddenly, and at the same time can eliminate the MDPS instantaneous control stability reduction caused by the output difference of each mode control situation issues, as well as issues such as unusual vehicle behavior and steering vibration

Method used

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  • Apparatus and method for controlling motor drive power steering system
  • Apparatus and method for controlling motor drive power steering system
  • Apparatus and method for controlling motor drive power steering system

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Embodiment Construction

[0028] Hereinafter, embodiments of an apparatus and method for controlling a motor-driven power steering system according to the present disclosure will be described with reference to the accompanying drawings. It should be noted that these drawings are not to exact scale, and the thickness of lines or the size of components may be exaggerated for convenience and clarity of description only. In addition, the terms used herein are defined by considering the functions of the present disclosure, and may be changed according to user's or operator's intention or practice. Therefore, definitions of terms should be made according to the overall disclosure set forth herein.

[0029] figure 1 is a block diagram configuration diagram for explaining an apparatus for controlling a motor-driven power steering system according to an embodiment of the present disclosure, figure 2is a block diagram configuration diagram for explaining a detailed configuration of an apparatus for controllin...

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Abstract

An apparatus and a method for controlling a motor drive power steering system are provided. The apparatus may include an MDPS basic logic unit configured to determine a first assist command current in a manual driving mode of the vehicle; an autonomous driving steering control unit configured to determine a second assist command current in an autonomous driving mode; a filtering unit configured to filter the column torque to thereby remove a noise torque; and a control unit configured to control whether to activate the filtering unit according to whether a predefined sudden steering condition is satisfied, determine a steering intervention by a driver based on the selectively filtered column torque, determine a final assist command current by applying a weight to the first and second assist command currents, and control switching from the automatic driving mode to the manual driving mode.

Description

[0001] Cross References to Related Applications [0002] This application claims priority and benefit of Korean Patent Application No. 10-2020-0086020 filed on July 13, 2020, which is hereby incorporated by reference for all purposes as if set forth herein. technical field [0003] Exemplary embodiments of the present disclosure relate to an apparatus and method for controlling a motor-driven power steering system, and more particularly, to such an apparatus and method for controlling a motor-driven power steering system that takes into account automatic Driving mode and manual driving mode to control the MDPS motor. Background technique [0004] A vehicle's power steering is a power-based steering device and is used to assist the driver in operating the steering wheel. This type of power steering mainly uses hydraulic pressure, but in recent years, the use of motor-driven power steering (MDPS) systems that use electric motor power is increasing. This is because compared w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D5/04B62D6/00B62D101/00B62D119/00
CPCB62D5/046B62D6/00B62D6/007B62D15/025B62D1/286B62D1/283B60W60/005B62D5/0463B60W10/20B60W60/0053B60W50/082G05D1/0061B60W2050/0052B60W2050/0022G05D2201/0213B60W60/001
Inventor 金泰弘
Owner HYUNDAI MOBIS CO LTD
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