The Engine Sensor Simulation Card is a customized version of Concurrent’s programmable FPGA card specially designed for hardware-in-the-loop engine control unit (ECU) testing. The card and its associated firmware can support two- and four-cycle engines with up to sixteen cylinders and four independent, variable-phase camshafts. Engine speeds up to 30,000 rpm with 0.001 rpm resolution can be simulated along with crank reverse rotation (idling stop).
In HIL engine testing, an ECU is connected to a real-time simulation computer that executes the engine model and evaluates the ECU’s operation. An engine ECU handles a wide variety of input and output control signals that perform on the microsecond level. A single high-performance FPGA card, with its customizable firmware, can often provide an interface to the ECU that would otherwise require multiple standard data acquisition cards. An FPGA I/O card can also buffer ECU events to provide improved performance communication to and from the simulation model.