Planet wheel set, electric drive system, vehicle and electric drive system control method

The invention provides a planetary gear set, an electric drive system, a vehicle and an electric drive system control method.The planetary gear set comprises a gear tooth part and an output end, the gear tooth part is arranged on the periphery of the planetary gear set, and the output end is arranged on a gear shaft of the planetary gear set; the gear tooth part is suitable for being connected with a driving shaft which is coaxially arranged with the driving assembly, and the output end is suitable for being arranged on an output shaft in a sleeving mode. Transmission is directly conducted through the gear tooth part, transmission links are reduced, therefore, the power transmission efficiency is improved, and energy loss is reduced. Meanwhile, compared with a traditional parallel shaft and planet row structure, an intermediate shaft is omitted, the transverse size needed by the first planet carrier can be reduced while the same transmission ratio is achieved, and the whole electric drive system is more compact in structure. The compact structural design not only facilitates the flexibility of the arrangement of the whole vehicle, but also provides more space for the expansion of other important parts or passenger compartments, and improves the practicability and comfort of the vehicle.