Transmission, vehicle power system and vehicle

Abstract

The invention provides a transmission, a vehicle power system and a vehicle. The transmission comprises a planetary gear mechanism, a synchronous meshing mechanism and an output shaft, a sun gear of the planetary gear mechanism is used for being in transmission connection with a first motor, a gear ring of the planetary gear mechanism is in transmission connection with the output shaft all the time, the output shaft can be in transmission connection with a second motor, and a planet carrier of the planetary gear mechanism can be in transmission connection with an engine. By means of the synchronous meshing mechanism, the planet carrier can be selectively connected with the shell and the gear ring of the transmission in an anti-torque mode. Therefore, the vehicle power system including thetransmission, the engine and the dual motors according to the present invention not only can realize various required operating modes, but also can transmit torque to the clutch by the engine regardless of the speed of the vehicle, thereby ensuring the operating performance of the vehicle power system at various vehicle speeds. The invention further provides various vehicle power systems comprising the transmission and the vehicle.

Description

technical field [0001] The present invention relates to the vehicle field, and more specifically relates to a vehicle transmission, a vehicle power system including the transmission, and a vehicle including the vehicle power system. Background technique [0002] A hybrid power system with dual motors is often used in existing hybrid power vehicles, and the hybrid power system can realize multiple working modes. [0003] In a hybrid system with dual electric machines, an engine, first and second electric machines and a transmission are included. The engine and one of the first electric machine and the second electric machine (mainly only used as a generator) realizes the transmission coupling all the time. When the clutch of the transmission is engaged, both the engine and the above-mentioned one motor are coupled with the input shaft of the transmission; when the clutch of the transmission is disengaged, both the engine and the above-mentioned one motor are disconnected fro...

AI Technical Summary

Problems solved by technology

[0006] The vehicle power system has high performance when the vehicle speed is low, but because the engine cannot be directly driven, the vehicle power system has poor performance when the vehicle speed is high (for example, greater than 100 km / h)

During the driving process of the engine, the first motor always needs to be in the state of power generation or traction to adjust the operating point of the engine, which will cause energy loss during the conversion from mechanical energy to electrical energy

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