Automobile hybrid power structure based on AMT capable of adapting to speed change requirements of different vehicle types

Abstract

The invention discloses an automobile hybrid power structure based on AMT capable of adapting to speed change requirements of different vehicle types, wherein a transmission input shaft is provided with a driving tooth, a driving-driven combined tooth and a mode switching combined tooth sleeve; the driving tooth and the driving combined tooth are fixedly connected with and sleeve the input shaft in a hollow manner; a driven combined tooth is arranged on the input shaft; the mode switching combined tooth sleeve can slide on the driving combined tooth and the driven combined tooth to be meshed with the driving combined tooth or the driven combined tooth independently or both simultaneously. The output shaft is provided with a tooth part similar to the input shaft. When the two modes are switched and combined with the synchronous sliding of the tooth sleeves, only one tooth sleeve of the two tooth sleeves is simultaneously meshed with the driven combined teeth and the driving combined teeth, or the two tooth sleeves are not simultaneously meshed with the driven combined teeth and the driving combined teeth. The motor driving teeth are meshed with the input shaft driving teeth. The automobile hybrid power structure overcomes the problem of power interruption during gear shifting of the AMT transmission, can automatically switch among a pure oil mode, a P2 mixed mode and a P3 mixedmode, and meets the requirements of different driving conditions.

Description

technical field [0001] The invention relates to new energy vehicles, in particular to an AMT-based vehicle hybrid power structure that can adapt to the speed change requirements of different vehicle models, and belongs to the technical field of electric vehicles. Background technique [0002] With the increasingly stringent environmental protection measures around the world, electric vehicles have become a focus of automotive research and development due to their energy-saving and low-emission characteristics, and have been successfully commercialized. Since the battery life and charging technology of pure electric vehicles have not been fully resolved, they are not yet generally accepted by consumers. However, hybrid electric vehicles take into account the advantages of fuel vehicles and electric vehicles, so currently hybrid electric vehicles have more market prospects. [0003] The common hybrid setting methods are: 1. Add 48-volt BSG electrode on the engine to replace t...

AI Technical Summary

Problems solved by technology

[0006] The hydromechanical automatic transmission is the most widely used transmission, which realizes the function of automatic torque conversion and speed change. With the increase of gears and the advancement of electronic control technology, the shifting response of this transmission is more agile , the action is smoother, but it also has some inherent disadvantages: First, the torque converter, which relies on liquid to transmit power, has a large volume and heavy weight, and the oil transmission efficiency is not as high as that of the gear transmission, which will consume some energy, resulting in The fuel consumption of the vehicle is high; secondly, the planetary gear needs to be locked during the shifting process, and some shifting shocks will inevitably occur during the locking action, especially when fast locking is required during intense driving; thirdly, since the entire mechanism includes electronic control, Hydraulic, mechanical and other devices make the structure very complicated and the reliability is relatively reduced

However, when this structure is used in different models, due to the different shifting requirements of different models, it is necessary to redesign the corresponding gears. This process is very troublesome, and the redesigned gears are likely to affect the position of the corresponding transmission shaft where the gears are installed. The transmission shaft needs to be installed on the transmission housing, so once the installation position of a certain transmission shaft is changed, the transmission housing needs to be redesigned and the mold opened again, resulting in poor adaptability to vehicle models of this structure and high modification costs

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