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Electromotor drive train for a vehicle axle

A drive system and axle technology, applied in the direction of electric power units, power units, vehicle components, etc., can solve the problems of large size, and achieve the effects of simplified integration and adaptation, assembly cost and small size

Inactive Publication Date: 2020-12-01
WABCO EURO BVBA SPRL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, these electric drive trains often consist of multiple components from different manufacturers, thus making them relatively large in size

Method used

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  • Electromotor drive train for a vehicle axle
  • Electromotor drive train for a vehicle axle
  • Electromotor drive train for a vehicle axle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] exist figure 1 The electric drive train 2 of the axle 4 shown schematically in FIG. The switching device 62 for the switching operation of the transmission 30. The shift transmission 30 is arranged between the drive shaft 22 of the electric machine 20 and the axle differential 6 of the axle 4 and has two transmission ratio stages 36 , 42 that can be shifted by means of a shifting sleeve 50 .

[0022] An electronic motor control unit 24 is assigned to the electric motor 20 , which is connected to the electric motor 20 via at least one electrical sensor line 26 and an electrical control line 28 . For example, values ​​of the motor speed and / or the motor load of the electric machine 20 can be transmitted via the sensor line 26 to the motor control unit 24 . Via the control line 28 , the electric motor 20 is correspondingly controlled by the motor control unit 24 in order to set a specific motor rotational speed and / or a specific motor torque.

[0023] The shift transmis...

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PUM

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Abstract

The invention relates to an electromotive drive train of a vehicle axle, which is designed for transverse installation in a vehicle and which has an electric machine that can be operated as a motor, agearbox and a switching device for switching actuation of the gearbox, wherein the gearbox is arranged between a drive shaft of the electric machine and an axle differential of the vehicle axle and is provided with at least two gear stages which can be shifted by means of a shift sleeve. For the preferred use of the drive train in a heavy commercial vehicle, the switching device is designed to beelectro-pneumatically effective. In order to carry out a shift actuation, for each shift sleeve of the shift transmission, the shift device has a double-acting shift cylinder with two pressure chambers separated by a piston. Each pressure chamber is associated with a solenoid valve for alternately charging or discharging air from a pressure-conducting supply line, and wherein the switching devicehas a pressure sensor coupled to the supply line for sensing monitoring, and wherein each switching cylinder has a displacement sensor.

Description

technical field [0001] The invention relates to an electric drive train of an axle, which drive train is designed for transverse installation in a vehicle and has an electric machine operable as a motor, a shift transmission, and a shift transmission for A shifting device for shifting actuation, wherein the gearshift is arranged between the drive shaft of the electric machine and the axle differential of the axle and has at least two gear ratio stages that can be shifted by means of a shifting sleeve. Background technique [0002] Both electric vehicles and hybrid vehicles can be provided with electrically drivable axles, adjacent to which the associated drive train of the vehicle is inserted transversely in the vehicle in a space-saving manner. This drive train has an electric motor that can be operated as a motor and a reduction gear that is arranged between the propeller shaft of the electric motor and the axle differential of the axle, more precisely the differential hou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/02F16H61/00B60K1/00B60K17/06
CPCB60K1/00B60K17/06F16H61/0009F16H61/0213F16H2061/0068F16H61/30F16H63/3023F16H2061/307F16H2063/005
Inventor 斯特凡·菲尔特
Owner WABCO EURO BVBA SPRL
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