A transmission unit for a hybrid motor vehicle, includes an input shaft that can be connected to an internal combustion engine, a planetary gearing, which can be coupled to the input shaft, the planetary gearing having a first planetary wheel set and a second planetary wheel set, a first electric machine the rotor of which is rotationally fixedly coupled to the input shaft, a second electric machine which is coupled with a component part of the planetary gearing, and no more than four switching devices, each of which forms a brake or a clutch, and each can be moved between an activated position and a deactivated position. The switching devices are used for switching various transmission ratios acting between the input shaft and an output shaft and/or between the second electric machine and the output shaft. The no more than four switching devices are configured to implement four different transmission ratios in a drive state of the internal combustion engine, and two different transmission ratios in a drive state of the second electric machine, thereby implementing a serial operation as a result of their activated and deactivated positions. The invention disclosure also relates to a motor vehicle comprising said transmission unit.
HYBRID TRANSMISSION UNIT HAVING PLANETARY WHEEL SETS FOR IMPLEMENTING TWO SERIAL AND FOUR PARALLEL MODES, AND MOTOR VEHICLE
2022-08-11
Patent
Electronic Resource
English
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