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Expedite ADAS design using Vehicle-in-the-Loop

17 Mar 2015  | Christoph Hammerschmidt

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To solve this problem, IPG has developed an approach it calls Vehicle-in-the-Loop (ViL) that combines real and virtual tests. The vehicle with its electronic systems in this case is real, the traffic and the environment is generated by additional software and hardware; the surroundings can even be displayed as augmented reality in a kind of eyeglass with integrated display for the driver. Such scenarios allow testing of driver assistance systems, for example the driver can test if the vehicle's parking assistant correctly manoeuvres the car into a virtual parking spot, generated by the simulator. Traffic situations can be set according to the requirements and, if necessary, be reproduced precisely.

Not only the new technological approaches such as (semi)autonomous driving increase the necessity for more, and more thorough testing. Also the continuous exacerbation of US and European NCAP criteria drive the demand for virtual vehicle tests, Schmidt explained. The reason: NCAP increasingly extends the range of features to be included into the assessment. Years ago, a newly designed vehicle could achieve the best rating of five stars if the passengers were protected well enough in the case of an accident. Today and in the future, to reach this rating NCAP expects that the vehicles have accident-avoiding techniques in place such as emergency brake assist or pedestrian detection. "With our simulations we already can predict if a car will get the five-star rating," Schmidt noted.

But why is this relevant? "NCAP ratings are clearly driving the end customer's buying decisions," Schmidt explained. Therefore, more or less all OEMs today tend to simulate the behaviour of their ADAS in virtual traffic situations.

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