Extended range hybrid electric vehicle power system with modes switched by synchronizer

Abstract

The invention aims to provide an extended range hybrid electric vehicle power system with modes switched by a synchronizer. The system comprises a first motor and a second motor, an engine, a planetary gear train, the synchronizer, a fixed canine tooth ring which is fixedly connected with a box, a shaft gear canine tooth ring which is fixedly connected with a gear of an output shaft of the first motor, and a battery and an inverter; the engine is connected with a planet carrier of the planetary gear train; the second motor is connected with a sun gear of the planetary gear train through a sleeve; annular internal gears of the planetary gear train can be fixed on the box through the synchronizer and can also be connected with the output shaft of the first motor through the synchronizer, and the output shaft of the first motor is connected with a main change gear; the synchronizer is positioned between the fixed canine tooth ring and the shaft gear canine tooth ring; the annular internal gears of the planetary gear train are connected with a shaft sleeve spline of the synchronizer; the extended range hybrid electric vehicle power system can run in a pure motor-driven way to realize zero oil consumption and emission, and if the extended range hybrid electric vehicle power system needs to run for a long distance, the extended range hybrid electric vehicle system can run in an extended range mode, and the motor controls the position of the synchronizer to realize mode switching.

Description

technical field [0001] The invention relates to an automobile power system, in particular to a range-extended hybrid electric vehicle power system which adopts a synchronizer to realize mode switching. Background technique [0002] Hybrid vehicles have the advantages of fuel economy and low emissions, but still rely on fuel to provide power. Pure electric vehicles do not need fuel, but under the current battery technology conditions, the mileage of a single charge is limited. Range-extended hybrid electric vehicles can combine the advantages of electric vehicles and traditional vehicles. Within a certain design mileage, it can run purely electric and achieve zero fuel consumption and zero emissions. If you need to travel a long distance, it can be operated in the extended range mode. The hybrid power system (including range-extended design) currently used in the automotive industry is generally a series hybrid system or a parallel hybrid system, and its mode switching is r...

AI Technical Summary

Problems solved by technology

The hybrid power system (including range-extended design) currently used in the automotive industry is generally a series hybrid system or a parallel hybrid system, and its mode switching is realized by an electromagnetic clutch, which has a complex structure, expensive manufacturing costs, and limited operating modes

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