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Electric power steering device

A technology of electric power steering and rotor, which is applied in the direction of electric steering mechanism, electromechanical device, electric device, etc., can solve the problems of DC motor power limitation, complex structure, easy to wear, etc., to save installation space, improve transmission efficiency, Effect of reducing friction loss

Inactive Publication Date: 2009-12-02
ZHUZHOU TIMES ELECTRONICS TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a new type of electric power steering device. By implementing the present invention, it can solve the complex structure, easy to wear, and limited power of the DC motor in the prior art. A series of technical problems such as steering gear control

Method used

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Embodiment approach

[0028] As another embodiment of the present invention, such as image 3 As shown in the schematic diagram of the assembly structure of the actuator and the drive mechanism, the actuator 10 includes a gear 4 and a rack 5, the gear 4 is socketed at the end of the steering main shaft 31, the first half of the rack shaft 19 is made into a rack form, the gear 4 and the rack 5 A unilateral meshing method is adopted between them, and the second half of the rack shaft 19 is made into a lead screw form, and the direct drive motor rotor 15 and the nut 16 are made into one body, and the direct drive motor rotor 15 is threaded with the rack shaft 19 through the nut 16. The bar part meshes and drives the tooth bar 5. As a preferred embodiment of the present invention, such as image 3 The nut part at the end of the direct drive motor rotor 15 shown is in the form of a slideway, and the slideway part of the nut 16 is in sliding engagement with the lead screw part of the rack shaft 19 throu...

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Abstract

The invention discloses an electric power steering device, which is applied in the field of automobile manufacture and comprises a shaft assembly, a sensor assembly, a shell assembly, a controller, an execution mechanism and a direct driving motor. The sensor assembly acquires an electric power-assistant steering signal from the shaft assembly, the signal is sent to the controller through a connection wire harness, the controller carries out logical operation and analog operation for the signal and then sends a control signal to the direct driving motor, and the direct driving motor drives the execution mechanism to realize power steering, active return and damping control of the electric power steering device. The electric power-assistant steering device adopts the direct driving motor to realize direct driving non-contact control, and solves various technical problems of complex structure, easy abrasion, power limit, inadaptability for controlling a steering gear with large axle weight, and the like in the prior art.

Description

Technical field [0001] The invention relates to an electric power steering device, in particular to a non-contact electric power steering device which adopts a direct drive motor to realize direct drive control. Background technique [0002] At present, in the field of automobile manufacturing, automobile electric power steering has been extensively studied in China, and its control technology has also been developed rapidly. However, the current mature technology is still driven by a DC motor, and there is no product of a direct-drive electric power steering device. [0003] like figure 1 As shown, the main components of the electric power steering device driven by the traditional DC motor are: sensor assembly, motor assembly, reduction gear assembly matched with the motor, pinion-rack actuator, and controller. The working principle is, first, the sensor assembly senses and transmits the torque and angle from the steering wheel of the car, and the controller judges the di...

Claims

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Application Information

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IPC IPC(8): B62D5/04B62D3/12H02K7/10G01B7/30G01L3/04
Inventor 刘洁谭寿云何为国刘斌
Owner ZHUZHOU TIMES ELECTRONICS TECH CO LTD
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