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Power assembly for two-shift motor vehicle

A powertrain, electric vehicle technology, applied in electric power units, power units, multi-transmission ratio transmissions, etc., can solve the problems of high motor output power requirements, poor flexibility, difficult assembly and maintenance, etc., and achieve easy assembly. and maintenance, derating, compactness

Inactive Publication Date: 2010-05-12
锦州万得汉拿电机有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As a green energy, electric vehicle technology has been developed to a certain extent. Generally, electric vehicles adopt direct drive or constant transmission ratio, and the vehicle is driven by motor speed regulation, which requires high output power of the motor; Easy to assemble and service

Method used

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  • Power assembly for two-shift motor vehicle
  • Power assembly for two-shift motor vehicle
  • Power assembly for two-shift motor vehicle

Examples

Experimental program
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Embodiment Construction

[0011] Describe in detail below in conjunction with accompanying drawing: figure 1 , figure 2 As shown, the drive motor 1 and the front end cover 3 of the transmission case are assembled by means of flange connection, that is, the notch boss of the drive motor end cover 2 is inserted into the notch groove of the transmission end cover 3, and the circumferentially evenly distributed bolts 21 are connected. .The assembly structure is simple and fast, which effectively improves the coaxiality of the assembly of the motor output shaft and the gearbox input shaft. The front end cover 3 and the rear end cover 16 of the transmission case are connected by bolts to form the transmission case, and the input shaft is installed through bearings 5. The output shaft 4 of the drive motor 1 and the transmission input shaft 5 are respectively connected by internal and external splines to transmit torque. The low-speed driving gear 6 and the high-speed driving gear 10 are installed on the inpu...

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PUM

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Abstract

The invention provides a power assembly for a two-shift motor vehicle. A driving motor is integrally connected with a two-shift transmission so as to form a modularized power assembly which is simple to assemble and maintain. The transmission of the power assembly is a speed-change mechanism with two working shifts, namely a low-speed shift and a high-speed shift. The vehicle runs by using the low-speed shift while climbing under a heavy load and runs by using the high-speed shift while running on smooth road surface under a light road. The speed-change mechanism is implemented by using a synchronizer on a second shaft, and is jointed with a low-speed or a high-speed driven gear respectively through the synchronizer so as to realize low-speed and high-speed operations. The power assembly for the two-shift motor vehicle has a compact structure and flexible and convenient operation, and can reduce rated power for driving the motor.

Description

technical field [0001] The invention is suitable for a two-gear electric vehicle power assembly driven by electric cars and electric vans. Background technique [0002] As a green energy, electric vehicle technology has been developed to a certain extent. Generally, electric vehicles adopt direct drive or constant transmission ratio, and the vehicle is driven by motor speed regulation, which requires higher output power of the motor; Easy to assemble and maintain. Therefore, the use of mechanical gear shifting can reduce the rated power of the motor used. Contents of the invention [0003] The purpose of the present invention is to solve the above existing problems and provide a two-speed electric vehicle power assembly with good flexibility and easy assembly and maintenance. [0004] The present invention is achieved in this way: the drive motor and the front end cover of the transmission case are connected by bolts, the front end cover and the rear end cover of the tra...

Claims

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Application Information

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IPC IPC(8): B60K17/06B60K17/16
CPCF16H2200/0021B60K1/00B60K17/08B60K2001/001
Inventor 张志华孙玲鹿洪波杨佳高兴
Owner 锦州万得汉拿电机有限公司
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