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An engine test stand is a facility used to develop, characterize and test engines. The facility, often offered as a product to automotive OEMs , allows engine operation in different operating regimes and offers measurement of several physical variables associated with the engine operation.
A mechanical device test stand [1] is one specific type of test stand.It is a facility used to develop, characterize and test mechanical components. The facility allows for the testing of the component and, it offers measurement of several physical variables associated to the functionality of the component.
All reconditioned engines had to be tested. Supplied by the USAAF for this purpose were field units believed to be of the "Jacobsen" brand. Each comprised one fully equipped control cabin and two barrel type engine stands on four circular legs. Above the control cabin were the reservoirs of fuel and oil needed to "run-in" and test the new engines.
The break-in can take place either in the vehicle or on an engine stand. Each engine has specific preparation needs of its own due to factors such as the many different types of engine models, the vehicles it belongs to, and conflicting expert instructions. For example, each engine should be lubricated and run on oil specified by its designers ...
Transient test: usually done with AC or DC dynamometers, the engine power and speed are varied throughout the test cycle. Different test cycles are used in different jurisdictions. Chassis test cycles include the US light-duty UDDS, HWFET, US06, SC03, ECE, EUDC, and CD34, while engine test cycles include ETC, HDDTC, HDGTC, WHTC, WHSC, and ED12.
Automatic test equipment diagnostics is the part of an ATE test that determines the faulty components. ATE tests perform two basic functions. The first is to test whether or not the Device Under Test is working correctly. The second is when the DUT is not working correctly, to diagnose the reason.