Wheel torque multi-objective optimization method for electric wheel drive vehicle based on optimal vehicle comprehensive performance
A multi-objective optimization and comprehensive performance technology, applied in the field of wheel torque distribution of electric wheel drive vehicles, can solve the problem of independent research on stability or economy, limit the development of high-performance electric wheel drive vehicles, and rarely take into account electric wheel drive vehicles at the same time Drive vehicle stability and economy and other issues to achieve the effect of ensuring vehicle stability, improving solution speed, and improving the ability of different driving conditions
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[0053] The present invention will be further described in detail below with reference to the accompanying drawings, so that those skilled in the art can implement it with reference to the text of the description.
[0054] Such as figure 1 As shown, the present invention provides a multi-objective optimization method for wheel torque of electric wheel drive vehicles based on the optimal overall performance of the entire vehicle, which includes the following steps:
[0055] Step 1. Obtain the basic parameters of the car, including vehicle mass m and wheel rolling radius R w , The steering system angular transmission ratio i s , The vehicle wheelbase B, the number of drive shafts N, the distance between each shaft and the center of mass l i , The height of the center of mass from the ground H g , Automobile wheelbase l, where, for a two-axle drive vehicle, the wheelbase l is the front and rear axle wheelbase, and for a multi-axle drive vehicle, l is the bogie wheelbase. And get the dr...
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