A method for adjusting the limited-slip differential of a small racing car
A limited-slip differential, small technology, applied in geometric CAD, design optimization/simulation, sustainable transportation, etc., can solve the problems of few adjustment methods and difficult to apply the adjustment method of passenger car limited-slip differential. , to achieve the effect of simple operation, convenient and efficient data analysis software, and improved reliability and stability
Active Publication Date: 2021-07-20
SOUTH CHINA UNIV OF TECH
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Problems solved by technology
[0009] The technical problem to be solved by the present invention is that there are few adjustment methods for FSAE racing cars and passenger car limited-slip differentials, and the adjustment methods of passenger car limited-slip differentials are difficult to apply to FSAE racing cars. Adjustment method of limited slip differential based on FSAE formula racing car
Method used
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Embodiment Construction
[0058] The purpose of the present invention will be further described in detail through specific examples below, and the examples cannot be repeated here one by one, but the implementation of the present invention is not therefore limited to the following examples.
[0059] Such as figure 1 As shown, a limited-slip differential adjustment method of a small racing car, including steps:
[0060] Analyze the internal structure of the Drexler limited-slip differential, and establish a mathematical model of the limited-slip differential;
[0061] Design the mathematical model of vehicle handling stability;
[0062] Use Matlab / simulink to build the mathematical model of limited slip differential and vehicle handling stability;
[0063] Install vehicle data acquisition system;
[0064] Simulate the mathematical model of vehicle handling stability;
[0065] Conduct limited-slip differential adjustment experiments;
[0066] Through data analysis, the working status of the limited-...
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The invention discloses a method for adjusting a limited-slip differential of a small racing car, which comprises the steps of: establishing a mathematical model of a limited-slip differential; designing a mathematical model of the handling stability of the whole vehicle; Vehicle handling stability mathematical model; install the vehicle data acquisition system; simulate the vehicle handling stability mathematical model; conduct limited slip differential adjustment experiments; obtain the limited slip differential and the two driving wheels through data analysis Working conditions and steering characteristics of the racing car; by simulating the mathematical model of the vehicle handling stability, the change trend of the locking coefficient that is conducive to improving the handling stability is obtained; by changing the gear position of the limited slip differential and the arrangement of the friction plates Change its locking factor. The present invention uses the mathematical model that has been verified by the limited-slip differential adjustment experiment to guide the adjustment of the different gears and the number of friction surfaces of the limited-slip differential, and finally realizes the improvement of the steering stability of the racing car through the adjustment of the limited-slip differential sex.
Description
technical field [0001] The invention relates to the field of the limited-slip differential of the transmission system of a racing car, in particular to a method for adjusting the limited-slip differential of a small racing car. Background technique [0002] Formula Student China (English abbreviation: FSC) is an automobile design and manufacturing competition organized by college students majoring in automobile engineering or automobile related majors. This event is known as "the cradle of automotive engineers". In this event, the racing cars of various teams generally use the limited slip differential as the racing limited slip device. [0003] When the car is cornering or one side of the wheel is slipping on the road, the planetary gears in the limited-slip differential rotate to act as a differential speed, and the speeds of the left and right side shaft gears are not equal. Due to the existence of speed difference and the effect of axial force, friction torque is gener...
Claims
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IPC IPC(8): G06F30/20G06F30/15
CPCG06F30/15G06F30/20Y02T90/00
Inventor 郑少武李巍华何宝添刘清彬黄卓坤
Owner SOUTH CHINA UNIV OF TECH