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Friction compensation control apparatus and method of mdps system

An electric power steering and friction compensation technology, which is applied to automatic steering control components, power steering mechanisms, steering mechanisms, etc., can solve the problems of damping control performance decline, hand-off stability decline, etc., and achieve the effect of improving damping control performance.

Active Publication Date: 2016-03-09
HYUNDAI MOBIS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, in the mid-to-high speed range, the friction compensation torque and the damping control torque overlap, so there is a problem that the damping control performance is degraded, and the vehicle's on-center steering feel, vehicle restoring force, and torque enhancement (build- up) and drop in handfreestability

Method used

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  • Friction compensation control apparatus and method of mdps system
  • Friction compensation control apparatus and method of mdps system

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Embodiment Construction

[0034] A friction compensation control device and method for an electric power steering (MOTOR DRIVENPOWERSTEERING; MDPS) system according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings. In this process, the thickness of the lines shown in the drawings or the size of the constituent elements are exaggerated for clarity and convenience of description. In addition, the following terms are defined according to the functions in the present invention, and may vary depending on the purpose or practice of different users and operators. Therefore, these defined terms shall be subject to the content of the entire specification.

[0035] figure 1 It is a block diagram of the MDPS system of the vehicle according to an embodiment of the present invention, figure 2 It is a block diagram of the friction compensation control module of the friction compensation control device of the MDPS system according to an embodim...

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Abstract

The invention discloses a friction compensation control apparatus and method of a motor driven power steering (MDPS) system. The friction compensation control apparatus of the MDPS system is characterized by including a damping control unit configured to detect a damping torque of the MDPS system; and a friction compensation control module configured to detect a friction compensation torque using a column torque, a motor speed, and a vehicle speed, and adjust the detected friction compensation torque according to the magnitude of the damping torque. The invention can improve the damping control performance, and can ensure on-center steering of the vehicle, the vehicle restoring force, torque build-up and hand free stability.

Description

technical field [0001] The present invention relates to a friction compensation control device and method of an electric power steering (MOTORDRIVENPOWERSTEERING; MDPS) system, and in particular to a friction compensation torque of an MDPS system that adjusts the friction compensation torque according to the damping torque in the medium-high speed area, thereby improving the damping control performance of the MDPS system. Compensation control device and method. Background technique [0002] Electric power steering (MOTOR DRIVENPOWERSTEERING; hereinafter referred to as 'MDPS') system is to control the motor to provide light and comfortable steering operation when the vehicle is running at low speed, and to control the motor to provide heavy and stable steering operation when the vehicle is running at high speed. When it comes to an emergency, driving the motor enables rapid steering, providing the driver with the best steering operation environment as above. [0003] When th...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D6/00B62D119/00B62D101/00
CPCB62D5/0463B62D5/0466
Inventor 具恩敬
Owner HYUNDAI MOBIS CO LTD