A dual-motor four-gear gearbox electric drive system

Abstract

The utility model discloses a kind of double-motor four-gear gearbox electric drive systems, belong to commercial vehicle electric drive system field, applicable to passenger car, heavy truck;The system includes double motor, multiple transmission gear trains, three shift mechanisms, planetary gear train and output flange, through double-motor coupling and planetary gear shift, realize four-gear function with least transmission component, four-gear speed ratio difference is small, improve gear shifting smoothness, give consideration to power and high-speed cruise demand.Adopt the output stage planetary gear shift structure to improve torque density, save space;Double motor uses different power platform matching, can be flexibly adapted to save cost;With single-motor high-speed cruise mode, improve efficiency, reduce energy consumption, solve the deficiency of prior art.

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