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Fuel tank test system developed for fiat group automobiles

02 July 2013

The Industrial Group of Moog has recently delivered a fuel tank test system to the Fiat Group Automobiles (FGA), designed to perform dynamic functional tests on automotive fuel tanks, with the ability to simulate real-world road conditions.

The system allows the behaviour of the liquid fuel and components of the fuel tank system to be tested and evaluated. The test results will allow FGA to optimise the desired configurations and verify the design of specific fuel tank systems.

The 8-DOF (degrees of freedom) test system comprises 6-DOF electric simulation table with an extra 2-DOF tilt table on top for increased pitch and roll motion. The electric simulation table is used to reproduce the higher frequency road profiles, where the tilt table can simulate the cornering and acceleration behaviour of the vehicle.

This enables FGA to include different conditions during driving that lead to extreme fuel-sloshing effects. In addition, the Moog Replication and Moog Sinesweep Test Module software will enable FGA to replicate and play out time history drive files that were recorded at the test track or perform resonant-frequency research.

“We look forward to testing the functionality of our fuel tanks in a realistically simulated environment. We expect that the Moog test system will increase the speed of testing and save cost, because we can limit the use of outdoor test tracks. The laboratory setting will allow us to setup tests faster and to run the test programs whenever we need to and under repeatable conditions,” said Luigi Di Matteo, FGA Research & Development - Engine Systems Testing Responsible.

An Electric Simulation Table (sometimes referred to as multi-axis shaker table) is designed to perform product development tests and driver simulation research. Position, velocity and acceleration are controlled by the system through integrated control hardware and software. In addition to the electric actuators of the simulation table the new tilt table features two electric actuators for increased pitch and roll motions up to 30 degrees. The total pitch and roll angles of the test system exceed 50 degrees.

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