Automatic steering control device, automatic steering control system and control method

A technology of automatic steering and control devices, which is applied in the direction of automatic steering control components, steering mechanisms, steering rods, etc., which can solve the problems that automatic steering cannot be realized, and achieve the effect of simple structure

Active Publication Date: 2018-07-27
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology allows for better automated steering systems used in vehicles without adding extra components like motors. It uses a special type of fluid called circulation balls instead of traditional solenoids, making them more efficient at controlling the movement of fluids within the vehicle's engine. By connecting this new design into existing designs, there would also reduce any negative impact caused by these added parts while still providing effective functionality over their original purpose.

Problems solved by technology

Technological Problem: Current Automatic Steer Vehicle Control Systems have limitations such as requiring larger motors or heavier duty industrial machines due to their weight limits. There also exist issues with current automated systems like electronic fuel injection systems where the engine needs extra space around them while maintaining sufficient workspace available.

Method used

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  • Automatic steering control device, automatic steering control system and control method
  • Automatic steering control device, automatic steering control system and control method
  • Automatic steering control device, automatic steering control system and control method

Examples

Experimental program
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Effect test

Embodiment 1

[0067] This embodiment provides an automatic steering control device, such as Figure 1 to Figure 3 As shown, it includes recirculating ball steering gear 1, control valve group 4 and oil supply system. Among them, the recirculating ball steering gear 1 includes a hydraulic cylinder 2 and a steering control valve 3 (three-position four-way valve); the control valve group 4 includes a first mode switching valve 6 (two-position two-way electromagnetic directional valve), a second mode switching Valve 5 (two-position three-way electromagnetic directional valve), third mode switching valve 28 (two-position three-way electromagnetic directional valve) and proportional directional valve 8 (three-position four-way electro-hydraulic proportional directional valve). The steering control valve 3 is connected to the upper chamber of the hydraulic cylinder 2, the steering control valve 3 is connected to the lower chamber of the hydraulic cylinder 2 through the first mode switching valve 6...

Embodiment 2

[0088] This embodiment provides an automatic steering control system, such as Figure 4 As shown, it includes the steering controller 9 and the automatic steering control device provided in Embodiment 1. The steering controller 9 controls the first mode switching valve 6, the second mode switching valve 5, and the third mode switching valve according to the control instructions of the host computer 16. 28 and the state of the proportional directional valve 8, the steering controller 9 calculates the duty ratio and the displacement direction of the spool of the proportional directional valve 8 according to the expected steering angle issued by the host computer 16 and the current actual steering angle obtained by the angle sensor, and drives the vehicle The steering wheel reaches the desired steering angle, and the electronically controlled hydraulic automatic steering is completed.

[0089] Compared with the prior art, the beneficial effects of the automatic steering control s...

Embodiment 3

[0096] This embodiment provides a control method for an automatic steering control system, such as Figure 5 shown, including the following steps:

[0097] Step S1: The steering controller is initialized, and the first mode switching valve, the second mode switching valve and the third mode switching valve are in a power-off state;

[0098] Step S2: Judging whether there is manual signal intervention, if there is manual signal intervention, the first mode switching valve, the second mode switching valve and the third mode switching valve remain in the power-off state, the proportional directional valve is in the neutral position, and the automatic steering control system Enter the manual steering mode, without manual signal intervention, the first mode switching valve, the second mode switching valve and the third mode switching valve are energized, the automatic steering control system enters the automatic steering mode, and enters step S3;

[0099] It should be noted that t...

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PUM

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Abstract

The invention discloses an automatic steering control device, an automatic steering control system and a control method and belongs to the technical field of automatic steering control. The problem that a recirculating ball hydraulic power steering gear cannot realize automatic steering in the prior art is solved. The automatic steering control device comprises a hydraulic cylinder, a steering control valve, a first mode switching valve, a second mode switching valve, a third mode switching valve and a proportional direction valve; the steering control valve is connected with an upper chamberof the hydraulic cylinder; the steering control valve is connected with a lower chamber of the hydraulic cylinder through the first mode switching valve; the steering control valve is connected with an oil outlet of an oil supply system through the second mode switching valve; the steering control valve is connected with an oil return port of the oil supply system through the third mode switchingvalve; the second mode switching valve is connected with the lower chamber of the hydraulic cylinder through the proportional direction valve; and the third mode switching valve is connected with theupper chamber of the hydraulic cylinder through the proportional direction valve. The automatic steering control device can be used for automatic steering control of vehicles.

Description

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Claims

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Application Information

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Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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