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Steering judgment and turning angle calculation method for steering wheel of tracked vehicle

A technology of steering wheel angle and calculation method, which is applied in the direction of non-deflectable wheel steering, steering mechanism, vehicle components, etc., can solve the influence of steering pump steering operation, the influence of safety vehicle operation difficulty, and the change of the linear relationship between the steering wheel and the steering wheel angle. and other problems to achieve the effect of improving accuracy, improving steering safety and driving safety, and ensuring the flexibility and accuracy of steering

Active Publication Date: 2021-10-26
HEFEI UNIV OF TECH
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AI Technical Summary

Problems solved by technology

[0004] In the control-by-wire hydraulic steering system, during the rotation of the steering wheel, if the steering wheel angle signal cannot be accurately read, it will further affect the replacement of the initial steering angle, resulting in a change in the linear relationship between the steering wheel and the steering wheel angle. The steering operation performed by the pump has a great influence, which has a great influence on the safety of vehicle driving and the difficulty of vehicle operation

Method used

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  • Steering judgment and turning angle calculation method for steering wheel of tracked vehicle
  • Steering judgment and turning angle calculation method for steering wheel of tracked vehicle
  • Steering judgment and turning angle calculation method for steering wheel of tracked vehicle

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Embodiment Construction

[0031] In this embodiment, a control-by-wire hydraulic steering system of a tracked vehicle is generally used in low-speed and heavy-duty vehicles such as construction machinery, forklifts, tractors, and combine harvesters. The one-to-one correspondence relationship is realized, and the steering intention of the driver is guaranteed at all times, thereby reducing the driving difficulty of the operator and improving the driving accuracy. A method for judging the steering wheel steering and calculating the angle of rotation applied to the hydraulic steering system by wire, please refer to figure 1 ,include:

[0032] First, the system is powered on to collect the initial position SA of the rotation angle sensor 0 , set two flags within the rotation circle of the steering wheel, that is, the first flag Area1flag and the second flag Area2flag; then obtain the specific position SA of the current steering wheel, and use the initial position SA of the steering wheel 0 As the split p...

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Abstract

The invention discloses a steering wheel steering judgment and steering angle calculation method for a tracked vehicle. The method comprises the following steps of firstly, reading a steering signal by judging the steering of a steering wheel, then, determining the number of turns of the steering wheel so as to realize the replacement of an initial value of a steering angle, and then, controlling completion of a steering action through a steering pump; It is ensured that a steering angle of the steering wheel is within a certain error range, and accurate steering is achieved. According to the method, safety and the sense of direction of a driver during steering operation can be improved.

Description

technical field [0001] The invention relates to the control field of hydraulic steering, in particular to a method for judging the steering wheel steering and calculating the rotation angle of a tracked vehicle. Background technique [0002] With the progress of the times and the development of technology, the application fields of construction machinery and special vehicles are becoming more and more extensive, and their application environments are becoming more and more complex. People's requirements for the performance of such machinery and vehicles are gradually increasing, especially driving safety. Comfort and operating efficiency, while the requirements for hydraulic steering capability and accuracy have increased. [0003] The actual working conditions of traditional hydraulic steering mechanisms are complex and changeable, and installation errors and leakages will inevitably directly affect the judgment and information collection of the corner signal acquisition sy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D11/00B62D15/02
CPCB62D11/005B62D15/021
Inventor 夏光施展刘贤阳魏志详夏岩张华磊陈建杉汪韶杰孙保群
Owner HEFEI UNIV OF TECH
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