Hybrid power system

Abstract

The invention belongs to the technical field of automobiles, and discloses a hybrid power system. A first input shaft is arranged at an output end of a driving motor of the hybrid power system and isin transmission connection with a differential mechanism through a first transmission assembly, and the differential mechanism is in transmission connection with transmission shafts of wheels; a second input shaft is arranged at the output end of the engine and is in transmission connection with a power generation output shaft through a second transmission assembly, and the power generation outputshaft is in transmission connection with the input end of the generator; a clutch sleeves the second input shaft; and a hydraulic mechanism is configured to drive the clutch to be combined and separated so that the second transmission assembly is selectively connected to the first transmission assembly in a transmission mode through the clutch, and the hydraulic mechanism is configured to be selectively connected to the first transmission assembly and the second transmission assembly in a transmission mode and can be connected with the clutch, the driving motor and the generator. According tothe hybrid power system, driving of the driving motor is achieved, engine driving is completely decoupled, and economical efficiency and power performance are guaranteed.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a hybrid power system. Background technique [0002] With the increasingly stringent requirements for energy conservation and emission reduction regulations, the new energy vehicle market is developing rapidly, especially electric vehicles and hybrid vehicles, and the electrification of the power system has become an irreversible technological trend. At present, due to the comprehensive influence of factors such as short battery mileage, long charging time and short battery life, it is difficult for pure electric vehicles to become mainstream models in the short term. Dominant for a long time. [0003] Existing hybrid systems have series, parallel and hybrid modes. Among them, the hybrid mode is divided into electronically controlled stepless (ECVT) hybrid system and series and parallel structure hybrid system. The existing hybrid system has the following defects: [0004...

AI Technical Summary

Problems solved by technology

Due to the coaxial nesting arrangement, the primary center distance of the drive motor and the primary center distance of the generator cannot be independently allocated, which is not conducive to performance improvement. At the same time, the bearing support at both ends of the drive motor shaft cannot be realized, which affects the support rigidity. The manufacturing process is relatively complicated.

[0006] 3. The clutch is set on the intermediate shaft, and the installation position of the clutch is low, so that the clutch is immersed in lubricating oil. Although the lubrication effect can be improved to a certain extent, the clutch has energy loss of stirring the lubricating oil, and the energy consumption is relatively large. , which is not conducive to the demand for energy-saving economy

[0007] 4. It is difficult to realize the continuous and efficient operation of the drive motor and engine in each individual driving mode within the full working condition and full speed range of the whole vehicle, and it is impossible to take into account the needs of power and economy at the same time

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