Advanced Driver Assistance Systems (ADAS) & Connected Vehicles

Exponent has been involved in the evaluation of the performance of driver assistance systems for over a decade.  Today we are actively investigating both the present-day performance and future evolution of these systems which include Advanced Driver Assistance Systems (ADAS) for collision warning and mitigation, autonomous features, and connected vehicle technology.  Our consultants are involved in the testing and analysis of these systems both during development and when equipped vehicles are involved in accidents.  Exponent is well-versed not only in assessing performance against various metrics for specific ADAS applications but also providing customized testing to clients as their needs evolve.  Our engineers have formal training and experience in working with controller area network (CAN) bus devices and vehicle network systems.

Exponent has expertise and specialized equipment to test and evaluate the latest advanced vehicle technology sensors and ADAS.  Our specialized ADAS test equipment includes the Euro NCAP Vehicle Target, enabling safe and repeatable testing of Forward Collision Warning (FCW) and Automatic Emergency Braking (AEB) systems. The test vehicle’s performance can be recorded using onboard instrumentation to acquire the vehicle’s position and velocity relative to the target.  A combination of added sensors and data from the vehicle’s CAN bus can be used to monitor the timing of vehicle warnings and AEB application.

Commercial vehicle ADAS systems have been in production since 1992. Early systems provided forward monitoring and blind-spot detection through the implementation of forward and side-facing radar sensors. As passenger car technology has advanced, so too have commercial vehicle ADAS systems, which now integrate RADAR, LIDAR, infrared, camera technology, and ultra-sonic sensors.  In addition to collision avoidance functionality, some commercial vehicle ADAS systems have event data recorder (EDR) capability. Data captured by these ADAS systems can include vehicle operational and environmental data as well as video captures during critical events.

The "connected vehicle" is a broad term that encompasses communications between a vehicle and its surrounding environment, and is commonly referred to as "V2X." Currently, the most explored technologies are vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) communications. However, the technology is evolving into expanding the sources of other non-vehicle and moving objects such as vehicle-to-pedestrian (V2P) communication. V2X can expand on the effectiveness of current production ADAS technologies by overcoming limitations such as line-of-sight and range issues associated with existing ADAS sensors.

Exponent has the know-how to test and evaluate V2X performance and applications using specialized  equipment, including DSRC antennas, dedicated V2X processing units that enable the implementation of active safety application, and an anechoic chamber at our Test and Engineering Center in Phoenix, AZ.

As ADAS and V2X equipped vehicles become more prevalent in the market, claims relating to potential failure of the technology may arise.  Exponent can provide a comprehensive failure analysis in accident scenarios which involve ADAS and V2X equipped vehicles.

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