Electric vehicle power system and mine car

Abstract

The invention relates to an electric vehicle power system and a mine car. The electric vehicle comprises a first motor, a second motor and a speed reducer. The speed reducer is provided with a first input shaft connected with the first motor and a second input shaft connected with the second motor. The electric vehicle is also provided with a power output shaft for outputting power; a gear train between the second input shaft and the power output shaft is a reduction gear train; a gear shifting mechanism used for controlling power output of the second input shaft is arranged in the speed reducer, and the gear shifting mechanism is provided with a neutral gear for disconnecting power transmission between the second input shaft and the power output shaft and a working gear for locking and keeping power transmission between the second input shaft and the power output shaft. Besides, the mine car comprises a car body and the electric vehicle power system applied to the car body. Accordingto the electric vehicle power system and the mine car, a problem that uphill gear shifting is difficult when a vehicle is fully loaded because an automatic gearbox of an existing electric vehicle power system is provided with two gears is solved.

Description

technical field [0001] The invention relates to an electric vehicle power system and a mining vehicle, and belongs to the technical field of new energy mining vehicles. Background technique [0002] At present, heavy-duty mining vehicles with a load of about 100 tons all use traditional diesel engines and multi-gear manual transmission powertrain system architectures. However, heavy-duty mining vehicles using diesel engines will cause large vehicle emissions and pollute the environment; And the adoption of multi-gear manual transmission will make the driver's operation complicated, and the driver's operating level is required to be higher. [0003] In view of the problems referred to above, the Chinese utility model patent whose authorized notification number is CN207984566U discloses a pure electric power system of a heavy-duty mine car and a mine car. Among them, the pure electric power system of the heavy-duty mine car includes the first power motor and the second power ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an electric vehicle power system to solve the problem of difficulty in shifting uphill when the vehicle is fully loaded due to the two-speed automatic transmission of the current electric vehicle power system; the purpose of the present invention is also to provide a The mine car using this power system can solve the problem of difficulty in going uphill when the mine car is fully loaded in the prior art

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