Electric tractor double-motor power junction control device

Abstract

The invention discloses an electric tractor double-motor power junction control device and relates to the field of tractors. The control device comprises a wet clutch control oil way and a power junction gearbox. The wet clutch control oil way is connected according to a hydraulic oil way sequence. The power junction gearbox comprises two power input shafts, two power output shafts, a first wet clutch, an intermediate shaft and multiple pairs of gears. The wet clutch control oil way controls the wet clutch to be disengaged and engaged. The double-motor power junction control device can coordinate the working areas of two motors and also can conduct large torque output, the problem that an electric tractor is insufficient in power under a heavy-load working condition is effectively solved,meanwhile, work efficiency of the two motors is improved, different drive modes of the electric tractor are switched, and the dynamic property and economical efficiency of the electric tractor meet the requirements.

Description

technical field [0001] The invention belongs to the field of tractors, and relates to a control device for converging power of two motors of an electric tractor. Background technique [0002] At present, electric tractors mainly include pure electric, hybrid and other categories. The essential differences from traditional tractors mainly include: 1) the power source of the whole vehicle; 2) the driving system of the whole vehicle. Many colleges and scientific research institutions at home and abroad have done a lot of research on the vehicle drive system scheme of electric tractors. In terms of pure electric drive, some use a single motor and gearbox, and some use multi-motor distributed drive, that is, the motors drive the front and rear axles or drive wheels separately. The main disadvantage of the above two structural methods is that since the tractor needs to complete a variety of heavy-load farmland operations, the load it receives fluctuates frequently, and it is nece...

AI Technical Summary

Problems solved by technology

The main disadvantage of the above two structural methods is that since the tractor needs to complete a variety of heavy-load farmland operations, the load it receives fluctuates frequently, and it is necessary to adjust the output torque in a timely manner to adapt to the constant changes in load and driving resistance. Guarantee the power of the tractor

If it is a single motor plus a gearbox, the structure of the gearbox may be complicated, and the requirements for the driving motor will also be increased

In the case of multi-motor distributed drive, it may increase the difficulty of controlling the drive system of the vehicle

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