Method for testing steering slip rate of tracked vehicle

A test method and slip rate technology, which is applied in the trackless test of vehicles, etc., can solve problems such as large environmental impact and complicated vehicle speed measurement

Active Publication Date: 2020-04-28
JIANGSU UNIV
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  • Abstract
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Problems solved by technology

[0006] Aiming at the deficiencies in the prior art, the present invention provides a test method for the steering slip rate of a tracked vehicle, which solves the problem that the vehicle speed measurement in the traditional test is relatively complicated and is greatly affected by the environment, and the test method used is more Simple and easy to obtain the track slip ratio of the vehicle under different ground conditions

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  • Method for testing steering slip rate of tracked vehicle
  • Method for testing steering slip rate of tracked vehicle
  • Method for testing steering slip rate of tracked vehicle

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Embodiment Construction

[0039] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereto.

[0040] A certain type of tracked vehicle was tested on the track slip rate when turning under three kinds of ground environments. The three types of ground are cement ground, gravel ground and soft ground. The structural parameters of the tracked vehicle are: the ground length L of the track is 1720mm, the width B of the track is 50mm, and the radius r of the driving wheel is 100mm.

[0041] The speed of travel is all in low gear, and the speed measurement device is a Hall sensor. The speed n of the driving wheel is measured, and the theoretical speed V of the track can be obtained. p is 0.8m / s.

[0042] Such as figure 1 , establish the static coordinate system XOY based on the ground and the coordinate system x that rotates with the chassis 1 o 1 the y 1 , for any ...

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Abstract

The invention provides a method for testing the steering slip rate of a tracked vehicle. The method comprises the following steps: establishing a motion equation of any point on a track shoe in a steering process; establishing a mathematical model of single-side braking steering time T and a track slip rate i of a tracked vehicle; and calculating a slip rate i of a crawler belt by testing the single-side braking steering time T of the tracked vehicle and a rotating speed n of a driving wheel. According to the invention, the track slip rate of the tracked vehicle during steering under differentground conditions can be measured; the test process is simple, and the test efficiency is improved.

Description

technical field [0001] The invention relates to the field of testing the steering slip rate of a tracked vehicle, in particular to a method for testing the steering slip rate of a tracked vehicle. Background technique [0002] Slipping refers to the absolute movement of the track relative to the ground, and this movement is determined by the relative movement of the track to the vehicle body (the winding movement of the track) and the dragging movement (the rotational movement of the tracked vehicle around the steering center). When the speed of motion is greater than the speed of implicated motion, slipping occurs. [0003] The tracked vehicle is always accompanied by the slippage of the ground track relative to the ground during the steering process, which has a great impact on the steering performance of the vehicle and directly affects its work safety, passability and work efficiency. [0004] During the steering process, the tracked vehicle slips under the braking acti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/03
CPCG01M17/03
Inventor 李耀明丁肇唐忠
Owner JIANGSU UNIV
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