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Control method for electric power-assisted steering device with steering wheel corner computation and compensation

An electric power steering, steering wheel angle technology, applied in automatic steering control components, electric steering mechanisms, steering mechanisms, etc., can solve problems such as high cost, component aging, oil leakage, etc.

Inactive Publication Date: 2008-09-24
赵明翔
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, after the above-mentioned power steering system has been used for a long time, the parts will age and oil leakage will occur. It needs to be replaced or repaired, and the cost is relatively high. Otherwise, the oil leakage will cause oil waste, which is not conducive to environmental protection.

Method used

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  • Control method for electric power-assisted steering device with steering wheel corner computation and compensation
  • Control method for electric power-assisted steering device with steering wheel corner computation and compensation

Examples

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Effect test

Embodiment Construction

[0021] combine figure 1 and figure 2 As shown, a gear plate (3) for speed measurement is installed between the clutch (2) of the power steering motor of the electric power steering system and the worm gear reducer (6), and the gear plate (3) is measured by the Hall-type speed sensor (4). The pulse is converted into a square wave signal by the shaping circuit (5) and sent to the ECU (9) unit.

[0022] When working, the rotation of the steering wheel (10) drives the rotation of the steering column (7), and the steering column (7) drives the toothed plate (3) to rotate through the worm gear (6), and the Hall sensor (4) is driven by the rotation of the toothed plate (3). ) changes in the magnetic flux in the magnetic field circuit, the Hall sensor (4) detects that the corresponding output of the change of the magnetic flux also changes accordingly, and generates a voltage output corresponding to the concave and convex of the tooth of the tooth disc (3), through the shaping circu...

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Abstract

The invention relates to a control method with a steering wheel cornering calculation and compensating electro motion power-assisted turning machine. A tooth clamp is driven by a steering wheel to rotate, a Hall type sensor can induce the change of magnetic flow passing through the tooth clamp to generate corresponding pulse signals, and the pulses can be changed into regular square waves after being treated via a deformation circuit and can be sent to an electric control unit for treatment. The rotary direction of the steering wheel can be analyzed by the electric control unit according to torsional moment signals, and simultaneously, the positive and negative square waves can be accumulated to calculate the rotary angel of the steering wheel. The square wave signals can be numbered to calculate the rotary speed of the steering wheel according to the cornering and rotary speed of the steering wheel, the torsional moment signals of the steering wheel, vehicle speed signals, etc. to calculate the control current of the power-assisted motor to achieve the control aim with exactness and reliability.

Description

technical field [0001] The invention relates to an automobile power steering method, in particular to an electric power steering method. Background technique [0002] Power steering, as the name suggests, is to assist the driver to adjust the direction of the car and reduce the driver's effort to turn the steering wheel. Of course, power steering also plays a certain role in the safety and economy of driving. [0003] The power steering system configured on the car can be roughly divided into two categories at present: (1) one is a mechanical hydraulic power steering system; (2) the other is an electronic hydraulic power steering system. [0004] 1. Mechanical hydraulic power steering system [0005] 1 Mechanical hydraulic power steering system is generally composed of hydraulic pump, oil pipe, pressure flow control valve body, V-shaped transmission belt, oil storage tank and other components. [0006] 2 No matter whether the car is turning or not, this system must work, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D6/00B62D5/04
Inventor 赵明翔
Owner 赵明翔
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