The invention discloses a method for improving the power density of a transmission system of an electric drive vehicle and the transmission system adopting the method. The method comprises the steps that two motors and two transmission cases connected with the motors respectively are arranged in a power cabin of an electric drive vehicle; the two motors, the two transmission boxes, transmission shafts, wheels and wheel shafts in each power cabin are symmetrically arranged relative to the longitudinal line of the vehicle, so that the power flow of each power motor and the braking power flow of a brake are converged and then output to a driving wheel of the electric drive vehicle, and the transmission ratio of the two power flow lines is configured to be independently adjustable; the transmission system is set to comprise a first-stage speed reduction structure and a second-stage speed reduction structure, and performance parameters of a motor are determined according to preset required whole vehicle performance parameters; performance parameters of a brake are determined according to the preset required whole vehicle performance parameters; based on the parameters, the transmission ratio of each stage is calculated. The invention further provides a transmission system adopting the method.
本发明公开了一种用于提高电驱车传动系统的功率密度的方法及采用该方法的传动系统。该方法包括:在所述电驱车的动力舱内设置有两个电机,两个分别与各电机连接的传动箱;各动力舱内的两个电机、两个传动箱和传动轴、以及车轮、轮轴均相对于车辆的纵向线对称布置,从而将各个动力电机功率流和制动器制动功率流汇流后输出至电驱车主动轮,将两条功率流线的传动比配置为可独立调整;将所述传动系统设置为包括第一级减速结构和第二级减速结构,根据预定要求的整车性能参数,确定电动机的性能参数;根据预定要求的整车性能参数,确定制动器的性能参数;基于上述参数,进行各级传动比的计算。还提供了采用上述方法的传动系统。
Method for improving power density of transmission system of electric drive vehicle and transmission system adopting method
用于提高电驱车传动系统的功率密度的方法及采用该方法的传动系统
2022-01-21
Patent
Elektronische Ressource
Chinesisch
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