Motor-transmission integrated transmission system for blade electric vehicle

Abstract

The invention discloses a motor-transmission integrated transmission system for a blade electric vehicle. The motor-transmission integrated transmission system for the blade electric vehicle is a two-gear automatic transmission planet gear mechanism. The mechanism is composed of a single-row 2K-H planet gear mechanism, an electromagnetic clutch, an electromagnetic brake, a differential mechanism, a main speed reduction gear and a permanent magnet synchronous motor. A sun gear is directly and fixedly connected with a rotor base of the permanent magnet synchronous motor through a spline. A stator corresponding to a rotor is fixed to a motor shell. The differential mechanism is arranged in the rotor base of the permanent magnet synchronous motor. Power is transmitted to the sun gear through the motor, transmitted to a left half shaft and a right half shaft of the differential mechanism through a planet carrier, and finally output to wheels through the main speed reduction gear. A gear ring and the planet carrier are combined or separated through the clutch and the gear ring and a box body are fixed or separated through the brake. Through different combinations of the working condition or the non-working condition of the clutch and the working condition or the non-working condition of the brake, the switch between two gears is achieved. The motor-transmission integrated transmission system for the blade electric vehicle is simple in mode, compact in structure, small in size, low in weight and capable of meeting the principle that the vehicle is light in weight.

Description

Technical field: [0001] The invention relates to a motor-transmission integrated transmission system for a pure electric vehicle. Background technique: [0002] At present, internal combustion engine vehicles occupy most of the market, but internal combustion engine vehicles are facing two difficult problems of emission and shortage of oil resources. Starting from solving the energy crisis and environmental protection needs, the development of new energy vehicles represented by pure electric vehicles has attracted widespread attention from all over the world. [0003] Abroad, represented by Japan and the United States, are at the forefront of the world in the research of electric vehicles and hybrid vehicles. The number of hybrid vehicles in Japan reached 197,000 in 2004, mainly the third generation of Toyota Prius and Honda Civic. In the second generation, there are more than 20 varieties. The United States is accelerating the development of diesel hybrid power. Eaton is d...

AI Technical Summary

Problems solved by technology

As far as pure electric vehicles are concerned, the original fuel engine is replaced with a battery, a drive motor and its controller, and the rest of the structure is basically unchanged. Although this greatly simplifies the design and manufacturing process, it fails to meet the driving characteristics of the motor. To give full play to the various technical advantages of motor drive, so it is difficult to make a breakthrough in its cost performance

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