Range extender assembly and vehicle

Abstract

The invention discloses a range extender assembly and a vehicle. The range extender assembly comprises an engine part and a motor part connected with the engine part. The engine part includes: an engine block; and a crankshaft arranged in the engine cylinder body. The motor part comprises a rotor assembly connected with one end of the crankshaft, wherein a flywheel is arranged at the end, close to the crankshaft, of the rotor assembly, and crankshaft position marks are arranged on the periphery of the flywheel; and a stator assembly arranged on the periphery of the rotor assembly and connected with the engine cylinder body, wherein a crankshaft position signal sensor used for reading crankshaft position marks is arranged on the stator assembly. A flywheel of the engine part is omitted, the flywheel is integrated at the end, close to the crankshaft, of the rotor assembly, the flywheel is arranged close to the engine, bending stress caused by the mass of the flywheel is reduced, the bearing load of a main shaft of the engine part is reduced, crankshaft position marks are arranged on the periphery of the flywheel, and the crankshaft position marks can be read conveniently; the motor part applies compensation torque according to the crankshaft position, and the output torque fluctuation of the engine part is reduced.

Description

technical field [0001] The invention relates to the technical field of range extenders, in particular to a range extender assembly and a vehicle. Background technique [0002] Range-extended hybrid electric vehicles have the advantages of energy saving and emission reduction, long cruising range, and no mileage concerns, and are currently one of the key directions for the development of new energy vehicles. The range extender assembly is the main component of the range-extended hybrid electric vehicle. The range extender assembly includes the engine part and the motor part. When starting, the motor can drive the engine to start. After starting, the engine drives the motor to generate electricity. [0003] The existing range extender assembly has disadvantages such as large speed fluctuation, heavy load on the engine main shaft, easily damaged main bearing and large size. [0004] Therefore, the prior art still needs to be improved and developed. Contents of the invention ...

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Problems solved by technology

[0005] The object of the present invention is to provide a range extender assembly and a vehicle to solve the problems in the prior art that the range extender assembly has large speed fluctuations, the main shaft of the engine bears a large load, the main bearing is easily damaged and the size of the problem

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