Hybrid power electric car driving system based on planetary gear mechanism

Abstract

The invention relates to a hybrid power electric car driving system based on a planetary gear mechanism. The hybrid power electric car driving system comprises an internal-combustion engine, a main motor, a power generator, a first clutch, a second clutch, a brake, a control unit ECU, a drive axle, axle shafts, wheels, a motor controller, a power battery, an inverter and a planetary mechanism. The drive axle is connected with the wheels through the two axle shafts; the planetary mechanism comprises a sun gear, a planet carrier, a gear ring and a planetary gear; the sun gear is connected with a rotor shaft of the main motor, and the planet carrier serves as the output end to be connected with the drive axle; the brake is connected with the gear ring; one end of the power generator is connected with the internal-combustion engine, and the other end of the power generator is connected with the motor controller; and the control unit ECU is connected with the motor controller, and the motor controller is connected with the main motor and the power generator. According to the hybrid power electric car driving system, the planetary gear mechanism and the multiple clutches are used in cooperation, multiple driving manners can be switched in good time, and the travelling distance is increased.

Description

technical field [0001] The invention relates to the field of hybrid electric vehicle drive transmission, in particular to a hybrid electric vehicle drive system based on a planetary gear mechanism. Background technique [0002] With the increasing global energy shortage and environmental pollution, the study of energy-saving and environmentally friendly new energy vehicles has become a current hot spot. Electric vehicles have the advantages of zero emissions, high energy utilization, simple structure, low noise and wide source of raw materials, and are one of the future development directions of the automobile industry. However, the development of traditional cars is restricted by battery technology. Because the domestic charging pile network cannot cover a large area, the battery cannot be charged in time, which limits the driving range of electric vehicles. In addition, the battery often In a state of deep discharge, during regenerative braking, the braking energy is quic...

AI Technical Summary

Problems solved by technology

[0004] However, traditional hybrid vehicles do not allow the internal combustion engine or electric motor to drive the vehicle alone. The vehicle drive system has a complex structure and many components, which makes it difficult to control the internal combustion engine and electric motor, and there are relatively few driving modes.

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