Pure electric vehicle rear-engine rear-drive two-speed power assembly

Abstract

The invention discloses a pure electric vehicle rear-engine rear-drive two-speed power assembly which comprises a power motor, a power motor actuator, a two-speed automatic gearbox, a shifting motor, a shifting motor actuator, a pushing rod, wheels and an accelerator pedal. The two-speed automatic gearbox is internally provided with an input shaft, an intermediate shaft and a power output shaft. According to the pure electric vehicle rear-engine rear-drive two-speed power assembly, a first-gear gear and a second-gear gear are arranged on the input shaft inside the gearbox, and a synchronizer, a first-gear intermediate gear and a second-gear intermediate gear are arranged on the intermediate shaft, so that driving power with two speed ratios is achieved, wherein the first-gear intermediate gear and the second-gear intermediate gear are located on the two sides of the synchronizer. The low-torque power requirements of a new energy vehicle in a light-load state and or a flat-ground driving state are met, and the high-torque power requirements of the new energy vehicle in a full-load state and or a climbing state are also met; and structural connection is simple, the cost is low, maintenance is convenient, the use effect is remarkable, and the pure electric vehicle rear-engine rear-drive two-speed power assembly is worthy of being popularized.

Description

technical field [0001] The invention relates to the technical field of new energy vehicle power, in particular to a rear-mounted rear-drive two-speed power assembly of a pure electric vehicle. Background technique [0002] In today's increasingly scarce fossil energy, the application of new energy vehicles is becoming more and more popular, and new energy vehicles powered by electricity have entered the homes of ordinary people. Most of the new energy vehicle powertrains currently on the market are single-speed or manual two-speed powertrains. When the new energy vehicle is fully loaded or climbing, the power of the single-speed ratio cannot meet the requirements at all. , And if you want to increase the torque, you need to replace the motor with a higher power, which will waste energy when driving on no-load or flat roads. Contents of the invention [0003] The purpose of the present invention is to provide a rear-mounted rear-drive two-speed powertrain for pure electric...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a rear-mounted rear-drive two-speed powertrain for pure electric vehicles, which has the advantage of large torque and solves the problem of insufficient torque in new energy vehicles under full load or climbing conditions

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