A special transmission for new energy vehicles

Abstract

The invention relates to a transmission special for a new energy automobile. The transmission comprises an input shaft, an output shaft and a plurality of wet clutches L1 arranged between the input shaft and the output shaft, a first transmission chain is formed by the input shaft and the output shaft, the transmission further comprises a second transmission shaft parallel to the input shaft and the output shaft, the second transmission shaft comprises a second input shaft, a second output shaft and a plurality of wet clutches L2 connected between the second input shaft and the second output shaft, a gear Z1 is arranged on the input shaft, a gear Z2 is arranged on the output shaft, a gear Z3 meshed with the gear Z1 is arranged on the second input shaft, a gear Z4 meshed with the gear Z2 is arranged on the second output shaft, and therefore a second transmission chain is formed by the input shaft and the output shaft through the gear Z1, the gear Z3, the gear Z4 and the gear Z2. According to the transmission special for the new energy automobile, three-gear speed changes are achieved, the speed change range is wide, the maximum transmission ratio is large, and energy is saved.

Description

technical field [0001] The invention relates to a special transmission for new energy vehicles, which belongs to the field of vehicle transmission equipment. Background technique [0002] At present, transmissions are rarely used in new energy buses, and the maximum transmission ratio of a few transmissions is less than 3.5, and the transmission ratio between adjacent gears is between 2.8 and 3.5, which leads to the inability to start with direct drive in engine mode; and the starting power of the motor in motor mode If it is too large, the driving range will be reduced and energy will be wasted. Contents of the invention [0003] In view of this, the object of the present invention is to provide a special transmission for new energy vehicles with smooth shifting, compact structure, single-mode starting of the engine or motor, and energy saving and fuel saving. [0004] The present invention is realized by the following scheme: a special transmission for new energy vehicl...

AI Technical Summary

Problems solved by technology

[0002] At present, transmissions are rarely used in new energy buses, and the maximum transmission ratio of a few transmissions is less than 3.5, and the transmission ratio between adjacent gears is between 2.8-3.5, which leads to the inability to start with direct drive in engine mode; resulting in the starting power of the motor in motor mode If it is too large, the driving range will be reduced and energy will be wasted

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