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Drive unit for power train test bench and power train test bench

A power train and drive unit technology, applied in the field of power train test benches, can solve problems such as adverse effects on test results, and achieve the effects of improved vibration reduction, improved vibration behavior, and improved stiffness

Pending Publication Date: 2022-05-27
ZF FIEDRICHSHAFEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the known power train test benches are disadvantageous, since these drive units are still somewhat prone to vibrations caused by the electric motor at increasingly higher rotational speeds, which can then be transmitted to the test piece and adversely affect test results

Method used

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  • Drive unit for power train test bench and power train test bench
  • Drive unit for power train test bench and power train test bench
  • Drive unit for power train test bench and power train test bench

Examples

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Embodiment Construction

[0052] Identical objects, functional units and similar components are denoted by the same reference numerals throughout the drawings. These objects, functional units and similar components are implemented identically in terms of their technical characteristics, unless explicitly or implicitly derived from the description, for example, in other forms.

[0053] figure 1 Exemplarily and schematically shows a test of an electric motor vehicle powertrain at figure 1 Possible designs of the drive unit 2 according to the invention of the drive train test bench not shown in . The drive unit 1 comprises an electric motor 1 with a housing 3 and a carrying device 4 for carrying the electric motor 1 . The housing 3 comprises on its side a mechanical front yoke 6 integrally connected to the front bearing cap 5 of the electric motor 1 and a rear bearing cap of the electric motor 1 (in the figure 1 not shown in the perspective view) integrally connected mechanical back yoke (also in figu...

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Abstract

The invention relates to a drive unit of a drive train test bench for testing a drive train of an electric motor vehicle, comprising an electric motor having a housing and a support device for supporting the electric motor, wherein the housing comprises a mechanical front yoke, which is integrally connected to a front bearing cover of the electric motor, and a mechanical rear yoke, which is integrally connected to a rear bearing cover of the electric motor, and wherein the front yoke and the rear yoke extend from the electric motor in two transverse directions, respectively, above the electric motor, and wherein the front yoke and the rear yoke are connected to each other. The carrying device carries the electric motor through the front yoke and the rear yoke, so that a free space is formed below and on the sides of the electric motor. The drive unit according to the invention is characterized in that the drive unit further comprises at least one support module which additionally supports the housing on the carrier device. The invention also relates to a corresponding power train test bench.

Description

technical field [0001] The invention relates to a drive unit of a powertrain test stand for testing electric motor vehicle powertrains according to the preamble of claim 1 and to a corresponding device for testing electric motor vehicle powertrains powertrain test bench. Background technique [0002] Transmission test stands or power train test stands for testing motor vehicle transmissions or complete motor vehicle power trains are known from the prior art. Such test benches are used on the one hand to identify functional faults in the drive train directly after its production by means of a series of load tests within the scope of so-called end-of-line testing. Typical functional failures arise, for example, from components with play, such as gear wheels, synchronizing rings, synchronizing bodies, multi-plate clutch disks and shafts, which may be offset or may even cause vibrations. Within the scope of the functional test, the acoustic behavior and switching qualities are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/025H02K5/15H02K5/16H02K5/24
CPCG01M13/025H02K5/15H02K5/161H02K5/24H02K5/16H02K5/26G01M13/02H02K7/14G01M15/02
Inventor C·黑尔
Owner ZF FIEDRICHSHAFEN AG
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