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Device and method for testing and/or calibrating test stand

A technology for calibration test and test bench, which is applied in the field of motor vehicle devices, can solve problems such as failure to achieve high precision, and achieve the effects of simple cost and minimization of error sources.

Inactive Publication Date: 2019-11-12
卡特西有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, such a high degree of precision cannot be achieved with previous detection devices, for example due to wear of the test rollers, which does not also enter into the measurement

Method used

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  • Device and method for testing and/or calibrating test stand
  • Device and method for testing and/or calibrating test stand
  • Device and method for testing and/or calibrating test stand

Examples

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Embodiment Construction

[0080] It should be noted first that the various embodiments shown are merely examples. In particular, two test rollers can always be provided. Features of one embodiment can also be combined arbitrarily with features of another embodiment.

[0081] If a drawing contains reference symbols which are not explained in the directly associated descriptive text, then reference is made to the corresponding preceding or subsequent embodiment in the description of the drawing. The same reference numerals are therefore used in the figures for identical or comparable components and these components will not be explained again.

[0082] figure 1 A test stand 10 is shown with a test roller 12 , which is mounted rotatably about an axis of rotation D on a shaft designed as an arm 14 . A plurality of bearings 16 are provided for the shaft 14 . The shaft 14 can be driven by a drive 18 which can also serve as a brake.

[0083] A wheel 20 of a motor vehicle is shown on the test roller 12 , ...

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Abstract

The invention relates to a device for testing and / or calibrating a test stand, in particular for motor vehicles, comprising a measuring device which is designed to measure a tangential force acting onthe outer periphery of a test roller of the test stand.

Description

technical field [0001] The invention relates to a device and a method for testing and / or calibrating a test bench, in particular for a motor vehicle. Background technique [0002] On test rigs for motor vehicles, such as rolling test rigs, the forces acting on the wheel bearing surfaces of the tires are measured during acceleration and braking, ie under negative acceleration. [0003] The measurement of the force here takes place on the basis of torque. At this point, the vehicle wheel stands on the test roller, which is connected to the drive motor via the drive shaft. The drive motor is supported to swing. The support is configured as a force sensor. If the vehicle wheels are accelerated or braked, the forces that develop here are transmitted via the force transmission area to the test rollers. This force is measured by the support, that is to say the force sensor. Force measurement is achieved indirectly through torque measurement. [0004] The first rod extends fro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L5/20G01L25/00G01M17/007
CPCG01L5/20G01L5/282G01L25/00G01M17/0074
Inventor 约瑟夫·费穆波克
Owner 卡特西有限公司
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