Dual-power input pure electric transmission

A pure electric and transmission technology, applied in vehicle gearboxes, multi-gear ratio transmissions, transmission elements, etc., can solve problems such as unfavorable overall layout of pure electric vehicles

Inactive Publication Date: 2017-05-31
QIJIANG GEAR TRANSMISSION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the motor has the curve characteristics of low-speed constant torque and high-speed constant power, it is usually required to match a high-power, high-speed motor to meet the requirements of vehicle gradeability and maximum speed at the same time. As the power increases, the volume of the motor increases correspondingly. The required battery capacity also increases accordingly, which is not conducive to the overall layout of pure electric vehicles

Method used

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Examples

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Embodiment Construction

[0022] see figure 1 and figure 2 , is a specific embodiment of a dual power input pure electric transmission. The dual power input pure electric transmission includes a transmission case 4. In this embodiment, the transmission case 4 is composed of a left case 41 and a right case 42 connected by a plurality of bolts to form a whole. The transmission housing 4 is provided with a first input shaft 1, a second input shaft 2, and an output shaft 3, and the two ends of the first input shaft 1, the second input shaft 2, and the output shaft 3 are respectively supported on the left side by bearings. On the housing 41 and the right housing 42, wherein, one end of the first input shaft 1 and the second input shaft 2 protrude from the left housing 41, and one end of the output shaft 3 protrudes from the right housing 42, and an output The flange 13 is fixedly connected in the circumferential direction. The first input shaft 1 is fitted with a third-speed drive gear 5 through a beari...

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Abstract

The invention relates to a dual-power input pure electric transmission which comprises a transmission shell. A first input shaft, a second input shaft and an output shaft are arranged in the transmission shell, a three-gear driving gear is arranged on the first input shaft in a matched manner through a bearing and is connected with a gear-shifting gear capable of moving in the axial direction through a flange, one end of the gear-shifting gear is provided with combination teeth, and the other end is provided with first-gear driving teeth; the second input shaft is provided with a second-gear driving gear and a fourth-gear driving gear through bearings in a matched manner, and a second gear and fourth gear synchronizer is arranged between the second-gear driving gear and the fourth-gear driving gear; a second gear and third gear driven gear, a fourth gear driven gear and a first-gear driving gear are fixedly connected to the output shaft sequentially in the circumferential direction, the second gear and third gear driven gear is in constant meshing with the third-gear driving gear and the second-gear driving gear, and the fourth gear driven gear is in constant meshing with the fourth-gear driving gear; and the gear-shifting gear moves in the axial direction to enable the combination teeth of the gear-shifting gear to be meshed with the three-gear driving gear, or the first-gear driving teeth of the gear-shifting gear are meshed with the first-gear driven gear.

Description

technical field [0001] The invention relates to the field of transmissions, in particular to a dual power input pure electric transmission. Background technique [0002] With the depletion of petroleum resources and the increasing emphasis on environmental protection, pure electric vehicles have been widely optimistic about their application prospects and have developed rapidly due to their environmental friendliness and high energy conversion rate. [0003] At present, the powertrain of pure electric vehicles on the market mainly includes two forms: motor direct drive and motor matching transmission combination. Motor direct drive can realize stepless speed change, and the user experience is better. However, pure electric vehicles using motor direct drive have disadvantages such as poor acceleration performance and poor climbing performance, which lead to relatively large limitations of this type of pure electric vehicle. Therefore, the motor matching The powertrain of tra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/32F16H3/38F16H57/00F16H57/023
CPCF16H3/32F16H3/38F16H57/0025F16H57/0031F16H57/023F16H2200/0021
Inventor 赖玉坤汤结贵丁访月
Owner QIJIANG GEAR TRANSMISSION
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