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Adaptive cruise control put to the test
Mechanical Simulation

In the past two decades, advanced driver assistance systems (ADAS) have become increasingly common in modern vehicles. OEMs and Tier 1 suppliers have developed their own unique technical requirements and performance goals while producing, developing and tuning each ADAS that they offer. Unifying requirements and regulations for various ADAS is a necessity to provide passenger vehicle consumer confidence and safety.

The European New Car Assessment Programme (Euro NCAP) is an organization that develops and maintains a voluntary safety rating system. This protocol comprises a battery of tests to help consumers and businesses compare the relative safety of vehicles.

Performing these tests on a physical proving ground can be time-consuming and expensive, especially when attempted early in a vehicle’s development cycle. To help users accelerate the testing and development of the ADAS technologies, Mechanical Simulation’s CarSim simulation package includes Euro NCAP standardized test examples.

One such test within ADAS testing is Assisted Driving–Highway Assist Systems. A fundamental system exercised during this test is the adaptive cruise control (ACC). Within the Euro NCAP testing protocol, ACC is tested using car-to-car interactions that involve the use of a vehicle under test (VUT) and a global vehicle target (GVT). The GVTs can be stopped, or approach zero speed, while traveling ahead of the VUT and in its lane. They can also perform cut-in or cut-out maneuvers into and out of the VUT’s lane. These actions require intervention by the VUT’s ACC system. The GVTs and vehicle objects in the CarSim Euro NCAP ACC performance examples were specifically developed for use in Euro NCAP test and assessment protocols.
As ADAS technologies have become increasingly common in the automotive industry, testing standards are needed to evaluate their safety. The simulated Euro NCAP tests, like those found in CarSim, are also becoming a necessary step in creating low-cost metrics based on those standards.

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