Abstract: A power transmission system includes: a power source; a first motor generator unit; a system power output portion; a first and a second mode conversion devices. The power source and the first motor generator unit is connected to or disconnected from the system power output portion through the first mode conversion device. The power source can be connected to or disconnected from the first mode conversion device through the second mode conversion device. The second mode conversion device includes a conversion device input shaft, a first conversion device intermediate shaft and a conversion device output shaft, and the conversion device output shaft is connected to the first motor generator unit; and power from the power source is suitable for being decelerated sequentially through the conversion device input shaft, the first conversion device intermediate shaft and the conversion device output shaft and then output to the first mode conversion device.

Abstract: A power transmission system includes: a power source; a speed change unit, where the speed change unit is selectively power-coupled to the power source; a first motor generator unit; a system power output portion; and a mode conversion device, where the mode conversion device includes: a conversion device input portion and a conversion device output portion, the conversion device input portion outputs power from at least one of the power source and the first motor generator unit, the conversion device output portion is connected to an input end of the system power output portion, and the conversion device input portion is selectively power-coupled to the conversion device output portion; and when the conversion device input portion is power-coupled to the conversion device output portion, the rotational speed of the conversion device input portion is greater than or equal to the rotational speed of the conversion device output portion.

Abstract: A transmission unit includes: gear pairs; input shafts; output shafts performing power transmission with the input shafts via the gear pairs; a motor power output gear disposed on one of the output shafts; a motor power shaft; a first motor power shaft gear disposed on the motor power shaft and configured to rotate together with one shift driving gear; a second motor power shaft gear disposed on the motor power shaft and configure to rotate together with the motor power output gear; and an output idler gear fitted over the motor power shaft and configured to rotate together with the motor power shaft via a synchronizer. A power transmission system including the transmission unit and a vehicle including the power transmission system are also provided.

Abstract: A differential, a power transmission system, and a vehicle are provided. The differential includes: a first planetary carrier, a first gear ring, and a first planetary gear disposed on the first planetary carrier and meshed with the first gear ring; and a second planetary carrier, a second gear ring, and a second planetary gear disposed on the second planetary carrier and meshed with the second gear ring and the first planetary gear, in which the first gear ring and the second gear ring are configured as two power output ends of the differential, the first planetary carrier and the second planetary carrier are configured as power input ends of the differential, and a revolution radius of the first planetary gear is different from a revolution radius of the second planetary gear.

Abstract: The power transmission system includes: a power source; a first motor generator unit; a system power output portion; and a mode conversion device, where the mode conversion device includes: an input portion, a first conversion portion, a second conversion portion and an output portion, the output portion is connected to an input end of the system power output portion, the input portion is suitable for outputting power from at least one of the power source and the first motor generator unit, the input portion is selectively connected to one of the first conversion portion and the second conversion portion, and each of the first conversion portion and the second conversion portion cooperates with the output portion to perform transmission; and the input portion is connected to the second conversion portion, so that a rotational speed output by the input portion is reduced and then output to the input end of the system power output portion.

Abstract: The present disclosure discloses a power drive system and a vehicle.

Abstract: The present disclosure discloses a power drive system and a vehicle, the power drive system including: an engine; a transmission having a transmission power output portion; a first electric generator, the engine and the first electric generator being connected through the transmission by means of power coupling; and a differential having a differential power input portion and two differential power output portions, the differential power input portion being linked with the transmission power output portion, each of the differential power output portions being connected with a wheel on the same side, and a power engagement device being provided between one of the differential power output portions and the wheel on the same side.

Abstract: The present disclosure discloses a power-driven system and a vehicle. The power-driven system includes: a power coupling device, where the power coupling device includes a first sun gear, a first planet carrier, a first ring gear, a second sun gear, a second planet carrier, a second ring gear, and a power transmission part; a power source; a first motor generator and a second motor generator; and a first braking device directly or indirectly braking the power transmission part. The power transmission part is coaxially linked to the first sun gear and the second sun gear. The power source is configured to selectively connect to the power transmission part. The first motor generator is linked to the first ring gear, and the second motor generator is linked to the second ring gear.

Abstract: The present disclosure discloses a power-driven system and a vehicle. The power-driven system includes: a differential; a power output shaft configured to link to a power input end of the differential; multiple input shafts; and a first motor generator. The differential includes a first planet carrier, a second planet carrier, a first planet gear, a second planet gear, a first ring gear, and a second ring gear. The first planet gear and the second planet gear are respectively disposed on the first planet carrier and the second planet carrier, the first planet gear and the second planet gear are respectively mesh with the first ring gear and the second ring gear, and the second planet gear further meshes with the first planet gear. One input shaft of the multiple input shafts is configured to selectively link to the power output shaft, and another input shaft of the multiple input shafts is configured to link to the power output shaft.

Abstract: A differential, a power transmission system, and a vehicle are provided. The differential includes: a first planetary carrier, a first gear ring, and a first planetary gear disposed on the first planetary carrier and meshed with the first gear ring; and a second planetary carrier, a second gear ring, and a second planetary gear disposed on the second planetary carrier and meshed with the second gear ring and the first planetary gear, in which the first gear ring and the second gear ring are configured as two power output ends of the differential, the first planetary carrier and the second planetary carrier are configured as power input ends of the differential, and a revolution radius of the first planetary gear is different from a revolution radius of the second planetary gear.

Abstract: A transmission unit includes: gear pairs; input shafts; output shafts performing power transmission with the input shafts via the gear pairs; a motor power output gear disposed on one of the output shafts; a motor power shaft; a first motor power shaft gear disposed on the motor power shaft and configured to rotate together with one shift driving gear; a second motor power shaft gear disposed on the motor power shaft and configure to rotate together with the motor power output gear; and an output idler gear fitted over the motor power shaft and configured to rotate together with the motor power shaft via a synchronizer. A power transmission system including the transmission unit and a vehicle including the power transmission system are also provided.

Abstract: A transmission unit includes: input shafts; output shafts; an output unit fitted over one of the output shafts; output gears fixed on other output shafts; a generator gear fixed on one of the output shafts; an output unit synchronizer disposed on one of the output shafts and at least configured to engage with the output unit; a motor power shaft gear fixed on a motor power shaft and configured to rotate together with the generator gear. A power transmission system including the transmission unit and a vehicle including the power transmission system are also provided.