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All-in-one integrated commercial vehicle electric drive axle

An integrated technology for commercial vehicles, applied in the direction of motors, axles, wheels, etc., can solve the problems of the transmission shaft occupying layout space, low transmission efficiency, and large volume, achieve good heat dissipation effect, improve the use environment, and increase the heat dissipation area. Effect

Pending Publication Date: 2022-08-09
NANJING SCAGE AUTOMOBILE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the electric drive system of commercial vehicles, the motor and gearbox are still assembled, and the power is output to the rear axle through the transmission shaft. The volume is large, the weight is heavy, and the transmission efficiency is low. The transmission shaft occupies a lot of chassis layout space. , so light weight and integration must be the development direction of commercial vehicle electric drive system

Method used

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  • All-in-one integrated commercial vehicle electric drive axle
  • All-in-one integrated commercial vehicle electric drive axle
  • All-in-one integrated commercial vehicle electric drive axle

Examples

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Embodiment Construction

[0032] The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings, but the protection scope of the present invention is not limited to the embodiments.

[0033] like figure 1 , figure 2 , image 3 The shown all-in-one integrated commercial vehicle electric drive axle includes an axle 1 and two sets of powertrains installed on the front and rear sides of the axle 1 in a central symmetry, each set of powertrains includes a housing 2, a motor, Gearbox, motor controller 6. The motor stator 3 is fixed on the housing 2 by means of interference fitting, the motor rotor 4 is fixed on the housing 2 by the shafting 5, the shafting 5 is fixed on the housing 2 by bearings, and the motor controller 6 is fixed on the housing 2 by bolts. On the casing 2, the oil pump 7 is fixed on the casing 2 by bolts, the heat exchanger 8 is fixed on the casing 2 by bolts, the oil pump 7 and the oil delivery hole of the shafting 5 are ...

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Abstract

According to the all-in-one integrated commercial vehicle electric drive axle, two sets of power assemblies are installed on the front side and the rear side of the axle, and each set of power assembly comprises a shell, a heat exchanger, a motor, a gearbox, a motor controller and an electric gear shifting mechanism; cooling water in the external cooling water channel enters the cooling water channel of the motor controller, enters the stator cooling water channel after cooling the motor controller, then enters the cooling water channel of the heat exchanger after cooling the motor stator, and returns to the external cooling water channel after cooling oil passing through the heat exchanger; oil in the gearbox is divided into two ways through the oil pump, one way of oil enters the rotor cooling oil way, the oil enters the heat exchanger after cooling a motor rotor, and the oil is cooled by cooling water in the heat exchanger and then flows back to the gearbox; and the other path of oil liquid reaches all stages of gear shafts of the gearbox through the input shaft of the gearbox and cools gears and bearings under the action of centrifugal force. The integrated design is adopted, the weight of the driving system is reduced, and light weight is achieved.

Description

technical field [0001] The invention relates to the technical field of electric vehicle power, in particular to an all-in-one integrated electric drive axle for commercial vehicles. Background technique [0002] The electric drive system of new energy vehicles continues to develop in the direction of light weight and integration. For the electric drive system of passenger vehicles, a batch integrated design scheme has been basically completed, including the three-in-one motor, electronic control and reduction box. , as well as four-in-one, five-in-one or even 6-in-one technical solutions integrating DCDC, OBC, PDU, and accessory controllers, and mass loading. For the electric drive system of commercial vehicles, the motor and gearbox are currently assembled, and the power is output to the rear axle by means of a drive shaft, which is large in size, heavy in weight, and low in transmission efficiency, and the drive shaft takes up a lot of chassis layout space. Therefore, lig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60B35/12B60K1/02B60K1/00B60K11/02H02K1/20H02K1/32H02K9/19
CPCB60B35/122B60K1/02B60K1/00B60K11/02H02K1/20H02K1/32H02K9/19B60K2001/006Y02T10/64
Inventor 高超薛正成冯艳彬
Owner NANJING SCAGE AUTOMOBILE TECH CO LTD
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