Three-motor hybrid truck and power system parameter matching method
A technology for trucks and hybrid drives, used in electric vehicles, electric braking systems, control drives, etc., can solve the problems of inability to fully recover braking energy, complex manufacturing processes, and large recovered energy, and achieve flexible braking energy. Recovery, Guaranteed Rationality, Power Reduction Effects
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[0046] The applicant provides an embodiment of the present invention according to the specific vehicle development process. The vehicle parameters of a certain model of light truck are: the curb weight (not including the battery) is 750kg, the battery weight is 480kg, the maximum load capacity is 1000kg, and the wheels are rolling. The radius is 0.312m, the rolling resistance coefficient is 0.0076+0.00056u, u is the vehicle speed, and the windward area of the vehicle is 2.5m 3 , The air resistance coefficient is 0.6, the rotation mass conversion coefficient is 1.05; the vehicle performance index is: the maximum speed is 120km / h, the acceleration time from 0~80km / h is ≤15s, and the maximum gradeability is ≥25%;
[0047] As attached figure 1 Shown: the three-motor hybrid drive truck includes a first drive motor 1, a first input shaft 2, a first reducer 3, a first output shaft 4, a front axle 5, a second input shaft 6, and a second drive Motor 7, first power battery 8, second power...
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