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Electric control hydraulic four-wheel steering system and steering method

A four-wheel steering, electronically controlled hydraulic technology, applied in steering mechanism, fluid steering mechanism, transportation and packaging, etc., can solve problems such as large turning radius, poor environmental capability, and reduced normal operating efficiency, and achieve strong adaptability and control. Flexibility and precision, the effect of improving field work efficiency

Pending Publication Date: 2017-08-04
WUZHENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Ordinary agricultural machinery uses front wheel steering. When working in the field, the turning radius is large, and the ability to adapt to the field environment is poor, which reduces the normal operation efficiency.

Method used

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  • Electric control hydraulic four-wheel steering system and steering method
  • Electric control hydraulic four-wheel steering system and steering method
  • Electric control hydraulic four-wheel steering system and steering method

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Embodiment Construction

[0023] Below in conjunction with accompanying drawing and embodiment, further elaborate the present invention. In the following detailed description, certain exemplary embodiments of the invention are described by way of illustration only. Needless to say, those skilled in the art would realize that the described embodiments can be modified in various different ways, all without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

[0024] Such as figure 1 As shown, the electronically controlled hydraulic four-wheel steering system includes a vehicle-mounted PLC controller 1, and the signal input terminal of the vehicle-mounted PLC controller 1 is connected with a steering mode selection switch 2, a driving main switch 3, a high-low speed switch 4, and a front wheel angle Sensor 5 and rear wheel angle sensor 6, the signal output end of described v...

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Abstract

The invention discloses an electric control hydraulic four-wheel steering system and a steering method. The system comprises a vehicle-mounted PLC; the signal input end of the vehicle-mounted PLC is connected with a steering mode selective switch, a main driving switch, a high-speed and low-speed switch, front wheel turning angle sensors and rear wheel turning angle sensors; the signal output end of the vehicle-mounted PLC is connected with a crab-type steering electromagnetic valve, an all-wheel steering electromagnetic valve, a rear wheel return-to-alignment indicator light and a fault alarm device; the front wheel turning angle sensors are mounted on front vehicle wheels; and the rear wheel turning angle sensors are mounted on rear vehicle wheels. By means of the electric control hydraulic four-wheel steering system and the steering method, the three steering modes including the crab-type steering mode, the all-wheel steering mode and the front-wheel steering mode can be achieved, the vehicle-mounted PLC automatically adjusts the states of the four wheels through received detection information, one of the steering modes is selected out according to the operation field environment, the adaptability is high, and the field operation efficiency of agricultural machinery is greatly improved.

Description

technical field [0001] The invention relates to the technical field of vehicle steering, in particular to a device for controlling four-wheel steering using electro-hydraulic technology and a corresponding steering method. Background technique [0002] Ordinary agricultural machinery uses front-wheel steering. When working in the field, the turning radius is large, and the ability to adapt to the field environment is poor, which reduces the normal operation efficiency. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an electronically controlled hydraulic four-wheel steering system with flexible control. [0004] In order to solve the above-mentioned technical problems, the technical solution of the present invention is: an electronically controlled hydraulic four-wheel steering system, comprising a vehicle-mounted PLC controller, the signal input end of the vehicle-mounted PLC controller is connected with a steer...

Claims

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Application Information

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IPC IPC(8): B62D5/08B62D5/06B62D15/02
CPCB62D5/06B62D5/08B62D15/025B62D15/029
Inventor 李瑞川李存江魏胜龙刘威峰杜祎春殷月朋范春光徐涛张崇飞
Owner WUZHENG
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