Electric drive pusher type steering system controlled by coupling force and displacement and control method

A coupling control and steering system technology, applied in the direction of electric steering mechanism, steering mechanism, steering rod, etc., to achieve the effect of reducing disturbance, good low temperature working performance, and improving active safety

Inactive Publication Date: 2012-08-15
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS +1
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  • Abstract
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  • Claims
  • Application Information

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  • Electric drive pusher type steering system controlled by coupling force and displacement and control method
  • Electric drive pusher type steering system controlled by coupling force and displacement and control method
  • Electric drive pusher type steering system controlled by coupling force and displacement and control method

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Embodiment Construction

[0019] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0020] As shown in the figure, an electric push rod type steering system controlled by force and displacement coupling includes a steering wheel 1, a steering input shaft 2, a torque sensor 3, an ECU 4, a transmission mechanism 5, a steering motor 6, an output shaft 7, and a worm crank. Finger type steering gear 8, electric push rod 9, deceleration transmission mechanism 10, booster motor 11, rocker arm 12, steering knuckle arm 13, steering trapezoidal rod 14;

[0021] The steering wheel 1 is connected with the torque input end of the transmission mechanism 5 through the steering input shaft 2, the torque sensor 3 is arranged between the steering input shaft 2 and the transmission mechanism 5, the ECU 4 is connected with the torque sensor 3, and the transmission mechanism 5 is connected with the steering motor 6 The torque output end is connected to the worm crank fin...

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Abstract

The invention relates to an automobile steering assistant-control system and a control method and in particular relates to an electric drive pusher type steering system controlled by coupling force and displacement and a control method. The moment output end of a driving mechanism, connected with a steering motor, is connected with a worm crankpin steering gear through an output shaft; a steering rocker arm on the worm crankpin steering gear is used for controlling a steering knuckle arm; the steering knuckle arm is connected with a steering trapezium rod; an assistant motor is connected with and drives a speed reducing mechanism; the speed reducing mechanism drives an electric drive pusher; and the assistant motor is controlled by an ECU (Electronic Control Unit). The steering assistant-control system provides appropriate assistance under various driving conditions to reduce disturbance caused by an uneven road surface to the steering system, improves steering characteristics of an automobile, decreases the steering operation force of the automobile traveling at a low speed, enhances the steering stability of the automobile traveling at a high speed to further enhance the driving safety of the automobile and meets the requirements of different using objects by setting different steering hand power characteristics.

Description

technical field [0001] The invention relates to an automobile steering assist control system and a control method, in particular to an electric push rod type steering system and a control method with force and displacement coupling control. The invention belongs to the technical field of automobile parts. Background technique [0002] Existing power steering systems mainly include hydraulic power steering systems, electronically controlled hydraulic power steering systems, electric power steering systems (EPS) and steering-by-wire systems. The hydraulic power steering system has the advantages of labor saving and easy control, and has a good effect on the structure and handling performance of the car. However, the hydraulic power steering system also has problems such as poor economy, large volume, and single power assist characteristics. The electronically controlled hydraulic power steering system solves the contradiction between portability and sensitivity to a certain e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D5/04B62D6/00B62D101/00B62D119/00B62D137/00
Inventor 王春燕徐晓宏赵万忠王筠菲李翊君赵婷张宗强
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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