Test rig and process for testing motor vehicle assemblies, in particular independent wheel suspension

US5487301A · kind A · utility

Assignee

• Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V. · DE

Inventors

• Andreas Müller · Wadgassen, DE
• Vatroslav Grubisic · Reinheim, DE
• Gerhard Fischer · Darmstadt, DE

Key dates

• Filing date: Feb 3, 1993
• Grant date: Jan 30, 1996
• Expiry date: Feb 3, 2013

Classification

• Technology area (CPC G): Physics
• CPC primary: G01M17/04
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A test rig for testing motor-vehicle assemblies includes a loading device for inducing vertical forces, lateral forces, longitudinal forces and braking or driving forces in the motor-vehicle assembly. The test rig includes a control device for controlling the loading device in such a way as to ensure that the vertical forces, lateral forces, longitudinal forces and braking or driving forces are induced in the motor-vehicle assembly according to a predetermined control loading programme. The control loading programme causes different loading cases of the motor-vehicle assembly, which are realistic in terms of the physics of driving, to be simulated repeatedly in a temporally consecutive sequence. The control loading programme is a standardised basic programme adapted, with the aid of vehicle-and/or axle-specific conversion values and test-rig-specific conversion values, to the given motor-vehicle assembly to be tested in the given case. Preferably, a modifying device is provided for adapting the motor-vehicle assembly to the standardised basic loading programme, whereby the modifying device enables adaptation of the basic loading programme in a particularly uncomplicated manner. The…