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Power assembly for electric automobile

An electric vehicle and powertrain technology, applied in the field of vehicles, can solve problems such as inability to meet driving dynamics requirements, inability to meet traction requirements, improper structure, etc., and achieve the effects of large vibration, reduced processing difficulty, and avoided efficiency.

Active Publication Date: 2020-03-03
CHONGQING ZONGSHEN CVT TRANSMISSION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the gearbox is a continuously variable transmission, it only simply mechanically connects the continuously variable transmission, reducer and transmission shaft. The shaft is easy to cause improper structure and high cost, and it is mainly installed at the rear of the rear axle, which cannot meet the driving dynamics requirements, such as the traction requirements when starting and climbing

Method used

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  • Power assembly for electric automobile
  • Power assembly for electric automobile
  • Power assembly for electric automobile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Such as Figure 1-2 As shown, a power assembly for an electric vehicle includes a drive motor, a continuously variable transmission, a universal joint transmission shaft and a rear axle with a differential. The universal joint drive shaft is placed in front of the rear axle. The motor is fixedly connected to the continuously variable transmission, and the power output end of the motor is directly or indirectly connected to the power input end of the continuously variable transmission. One end of the shaft is connected, and the other end of the universal joint transmission shaft is connected with the differential through the transmission gear set. The differential is set on the rear axle, and the differential on the rear axle is offset relative to the wheels on both sides; The offset setting of the transmission relative to the wheels on both sides; the angle range between the output shaft of the continuously variable transmission and the center line of the drive shaft o...

Embodiment 2

[0061] Such as figure 1 , 3 As shown, a power assembly for an electric vehicle includes a drive motor, a continuously variable transmission, a universal joint transmission shaft and a rear axle with a differential. The universal joint drive shaft is placed in front of the rear axle. The motor is fixedly connected to the continuously variable transmission, and the power output end of the motor is directly or indirectly connected to the power input end of the continuously variable transmission. One end of the shaft is connected, and the other end of the universal joint transmission shaft is connected with the differential through the transmission gear set. The differential is set on the rear axle, and the differential on the rear axle is offset relative to the wheels on both sides; the output of the continuously variable transmission The angle between the shaft and the centerline of the universal joint transmission shaft is less than 8° and greater than -8°, and the angle betw...

Embodiment 3

[0075] A power assembly for an electric vehicle includes a driving motor, a continuously variable transmission, a universal joint transmission shaft and a rear axle with a differential. The drive shaft is placed ahead of the rear axle. The motor is fixedly connected to the continuously variable transmission, and the power output end of the motor is directly or indirectly connected to the power input end of the continuously variable transmission. One end of the shaft is connected, and the other end of the universal joint transmission shaft is connected with the differential through the transmission gear set. The differential is set on the rear axle, and the differential on the rear axle is offset relative to the wheels on both sides; the output of the continuously variable transmission The angle between the shaft and the centerline of the universal joint transmission shaft is less than 10° and greater than -10°, and the angle between the output shaft of the continuously variabl...

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Abstract

A power assembly for an electric automobile comprises a drive motor, an infinitely variable speed changer, a universal joint drive shaft and a rear axle with a differential mechanism. By using the setting mode and the connection mode of the power assembly on the electric automobile, the defects that an electromotor in a power assembly equipped with a transmission gear box works in a low efficiencyarea and consumes a large amount of energy in starting or climbing, and endurance mileage and use life of a battery are influenced are avoided on the one hand, and the power assembly for the electricautomobile is compact in structure, can be provided with a large quantity of battery packs, and is high in efficiency on the other hand.

Description

technical field [0001] The invention belongs to the field of vehicles, and in particular relates to a power assembly for an electric vehicle. Background technique [0002] In recent years, electric vehicles have attracted attention due to their simple structure, economy and clean energy. Although the speed range of its electric motor is adjustable, it is difficult to meet the performance requirements of high-speed driving and low-speed climbing. [0003] Compared with fuel vehicles, electric vehicles take up a lot of space due to the battery, so the rationality of the powertrain is particularly important. The rear-mounted rear-drive arrangement of the electric vehicle powertrain can effectively increase the layout space of the battery, the layout of the electric vehicle is simpler, and the entire electric vehicle powertrain is easier to assemble and maintain. [0004] For the power assembly for the electric vehicle with the prior public rear arrangement, the transmission i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K1/00B60K17/16B60K17/06
CPCB60K1/00B60K17/06B60K17/165
Inventor 不公告发明人
Owner CHONGQING ZONGSHEN CVT TRANSMISSION CO LTD
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