Modules Insert Faults During HILS Automotive Test

April 26th, 2008

The Pickering Interfaces 40-193 and 40-194 are modules that simulate both high and low current faults when testing control systems. This is especially useful in a Hardware-in-the-Loop (HILS) test applications. Each module supports 7 channels which faults can have injected - each channel can be opened (to simulate and open circuit) or shorted to one of two fault connections (such as ground or battery supply). Channels can also be shorted together to simulate other types of wiring faults.

Both modules have a current rating of 20A at 16 VDC. The 40-194 version has additional circuitry making it capable of switching both high current and low current loads, overcoming the problem of high current relays, which require a minimum current too wet the contacts after prolonged hot switching events.

Each module has been designed to ensure robust operation over many test cycles, and each allows faults to be hot switched into the system while tests are running, perfect for finding controller system response to intermittent fault occurrences. Both modules include software support for LabView RT and QNX Real Time Operating Systems.

Entry Filed under: Automatic Test Equipment, Simulation