Functional testing of an electric power steering using HiL simulations
The increasing pressure to reduce cost and minimize developing time in the automobile industry, together with constantly growing number of vehicle variants, makes the employment of Hardware in the Loop (HiL) technologies for testing Electronic Control Units (ECU) mandatory. They allow the meticulous application and controlling of system desired characteristics in a very early phase. The steering, which acts as interface between the driver and his vehicle, plays a key role in the vehicle performance since influences the handling and the drive feeling massively. Similar to the Electronic Stability Control (ESC) the Electric Power Steering (EPS) is today standard equipment in each vehicle. However, the EPS is working permanently instead of only in special driving situation like ESC.
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