A Multi-mode Hybrid Coupling Drive System

Abstract

The invention relates to a multi-mode hybrid power coupling driving system, comprising an engine, a first motor, a second motor, a differential and a transmission mechanism; the transmission mechanismcomprises a double clutch transmission mechanism and a single row planetary gear mechanism; the dual clutch transmission mechanism comprises an engine power input shaft, an input tube shaft, an engine power output shaft, an output tube shaft and an intermediate shaft; the input tube shaft and the output tube shaft are sequentially loosely sleeved on the engine power output shaft, and the output end of the input tube shaft and the input end of the output tube shaft are connected through a third clutch; the single row planetary gear mechanism comprises a sun gear, two or more planetary gears, aring gear and a planetary carrier. The multi-mode hybrid power coupling driving system realizes ten working modes, that is, seven modes of transmission output, one mode of braking, one mode of reverse gear and one mode of idle charging, and can realize three gear positions matched with the driving of the engine and the first motor, and three gear positions matched with the driving of the second motor separately. The multi-mode hybrid power coupling driving system has the advantages of simple and compact structure and low cost.

Description

technical field [0001] The invention belongs to the technical field of vehicle power transmission, and in particular relates to a multi-mode hybrid coupling drive system. Background technique [0002] At present, the most typical dual-motor hybrid coupling drive system is the THS hybrid system dedicated to Toyota Prius, and there are also parallel-structure single-planetary automatic transmission systems jointly developed by domestic and foreign universities. The problem they have is that there are fewer types of working modes, and it is impossible to adjust to the most practical working mode according to the actual working conditions, and there are few shiftable gears, so it is difficult to make the engine work in the working range of the best fuel consumption . [0003] Especially in many working conditions, the engine or the motor needs to work alone, and there are certain requirements for the number of gears when the engine or the motor is driven alone. The number of p...

AI Technical Summary

Problems solved by technology

The problem they have is that there are fewer types of working modes, and it is impossible to adjust to the most practical working mode according to the actual working conditions, and there are few shiftable gears, so it is difficult to make the engine work in the working range of the best fuel consumption

[0003] Especially in many working conditions, the engine or the motor needs to work alone, and there are certain requirements for the number of gears when the engine or the motor is driven alone. The number of positions is small, which affects the intuitive feeling of the driver during driving, and is not conducive to the economy of fuel or electric energy consumption. There are also some hybrid power devices that can be driven independently by the engine or motor with multiple gears, but the structure is relatively loose. There are too many numbers and more synchronizers, the transmission loss is larger, it is not suitable for smaller vehicles, and the cost of these hybrid devices is higher

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