Single-motor double-row planetary gear electromechanical power coupling device

Abstract

The present invention provides a single-motor double-row planetary gear electromechanical power coupling device which comprises a motor, a first driving wheel, a second driving wheel, a first driven wheel, a second driven wheel, a first clutch, a second clutch, a first brake, a second brake, a front planetary row gear ring, a front planetary row planet wheel, a front planetary row sun wheel, a rear planetary row gear ring, a rear planetary row sun wheel, a rear planetary row planet wheel and an engine. According to the single-motor double-row planetary gear electromechanical power coupling device, two clutches, two brakes and a double-row planetary gear mechanism are used through reasonable arrangement. Power of the motor and the engine is connected to the planetary gear mechanism, as many as sixteen operating modes can be achieved by controlling a small number of executive components, the arrangement is simple, the structure is compact, and the problem that a dual driving motor scheme is complex in arrangement and high in cost is prevented.

Description

technical field [0001] The invention relates to a powertrain system of a hybrid electric vehicle, in particular to an electromechanical power coupling device with a single motor and double row planetary gears. Background technique [0002] Through the coordinated control of the electric motor and the engine, the hybrid electric vehicle (Hybrid electric vehicle) can obtain good fuel economy and power, compared with the pure electric vehicle (Pure electric vehicle), its mileage is longer, so it is the most advanced vehicle at this stage. One of the promising new energy vehicles. The hybrid electric vehicle realizes the power distribution between the engine and the electric motor through the electromechanical coupling device, and transmits the power to the drive axle, so the electromechanical coupling system is the core part of the hybrid electric vehicle. [0003] According to the comprehensive analysis of domestic and foreign hybrid drive system architecture, according to th...

AI Technical Summary

Problems solved by technology

However, in this utility model patent, in order to achieve the purpose of speed coupling and torque coupling, the drive system uses three clutches and three brakes. Many actuators will lead to complex hydraulic oil circuits, which will increase the difficulty of control and affect the working mode. switch quality

[0006] In the existing hybrid drive system, the drive system using the dual-motor scheme is complex in structure, not compact, and has high production and manufacturing costs

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