Vehicle and hybrid power system

Abstract

The embodiment of the invention provides a vehicle and a hybrid power system, and the hybrid power system comprises a first planetary gear set which comprises a first gear ring, a first planet carrierand a first sun gear; an engine which comprises an engine output shaft, and the engine output shaft is in anti-torque connection with any one of the first gear ring, the first planet carrier and thefirst sun gear; a first motor which comprises a first motor output shaft, and the first motor output shaft is in anti-torque connection with the other one of the first gear ring, the first planet carrier and the first sun gear; a differential mechanism which comprises a differential mechanism input shaft, and the differential mechanism input shaft is in anti-torque connection with the other one ofthe first gear ring, the first planet carrier and the first sun gear; a first clutch plate of the first clutch is connected with an output shaft of the first motor in an anti-torque mode, a second clutch plate of the first clutch is fixed, the first clutch plate can be combined with the second clutch plate, and therefore the energy utilization rate of the hybrid power system is increased.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of hybrid power, and in particular, to a vehicle and a hybrid power system. Background technique [0002] At present, the most mainstream hybrid systems for passenger cars in the world mainly include three hybrid structures: single-motor parallel connection, dual-motor series-parallel connection (hybrid connection), and power split. [0003] Take the power-split hybrid system as an example. At low speeds, the planetary gear set divides the mechanical power generated by the internal combustion engine into two power flow paths. Some of the power is sent to the drive wheels, while the rest is directed to the electric motor and converted into electricity, so that at lower vehicle speeds the engine can still operate in its optimum efficiency zone. The power-split hybrid structure can adjust the engine speed and torque through decoupling of the two motors, so that it can always work in t...

AI Technical Summary

Problems solved by technology

[0004] However, at high speeds, the internal combustion engine still needs to generate more energy than is actually required by the vehicle speed, and the remaining energy must drive the motor to generate electricity, and then drive the vehicle through another motor. After multiple energy conversions, there will be energy loss. Compared with the direct drive of the engine, the hybrid efficiency is not good

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