Hybrid power module for vehicle

Abstract

The invention relates to a hybrid power module for a vehicle. The hybrid power module comprises a speed changer, a first motor and a second motor, wherein the speed changer comprises an input shaft connected with an internal combustion engine, a first planetary gear mechanism, a clutch device and an output shaft. The input shaft is connected with a planet carrier in a torsion resistance mode, anda first motor shaft of the first motor is connected with a sun wheel in a torsion resistance mode. A gear ring can transmit power to the output shaft, and the second motor can output the power to theoutput shaft through a second motor shaft, wherein the first end and the second end of the clutch device capable of jointing and disconnecting from each other and are correspondingly connected with the planet carrier and the gear ring or the sun wheel and the gear ring in a torsion resistance mode, wherein the first motor, the input shaft and the first planetary gear mechanism are arranged coaxially, and the first motor and the input shaft are located on the same side, in the axial direction, of the first planetary gear mechanism. The first motor shaft is a hollow shaft, and the input shaft penetrates through the first motor shaft coaxially.

Description

technical field [0001] The invention relates to a hybrid module for a vehicle comprising a hybrid transmission and two electric machines. Background technique [0002] In a current plug-in hybrid module, two electric motors are connected to the hybrid transmission, and the internal combustion engine is connected to the hybrid transmission through a hydraulic clutch, so that the hybrid module can realize multiple working modes. However, both the traction motor and the internal combustion engine can only provide a single gear, which is not enough to optimize the operating point of the electric motor or the internal combustion engine. The hydraulic clutch is engaged or disengaged according to the conditions of the internal combustion engine. For example, in road driving, the efficiency of the internal combustion engine is high and the vehicle speed is high. At this time, the hydraulic clutch is engaged, and the internal combustion engine outputs torque, while the traction moto...

AI Technical Summary

Problems solved by technology

Therefore, the low-speed performance of the hybrid drive system, especially the climbing performance is not ideal

Additionally, hybrid drive systems are very costly due to the limited traction torque of the traction motors, which often require additional rear wheel drive

In addition, existing hybrid modules arranged with two motors have relatively large dimensions, which is very unfavorable for flexible arrangements in hybrid vehicles

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