An Evaluation of the Sensitivity of the User-Selected Forward Collision Warning Distance in a 2017 Honda CR-V 2023-01-0622

Testing was conducted to evaluate the effect on the Time to Collision (TTC) values of the visual and audible components of the Forward Collision Warning (FCW) provided by a 2017 Honda CR-V by changing the user-selected FCW Distance between Long, Normal, and Short. As part of the Honda Sensing Collision Mitigation Braking System (CMBS^TM), these user-selected values change the timing of the issuance of the visual and audible warning provided to drivers. This testing evaluated the Honda at speeds of 20, 35, 50, 60, and 65 miles per hour (mph) versus a stationary live vehicle in daytime conditions in a simulated rear collision scenario. Different FCW distance settings were selected to compare the response of the system at the 20 – 65 mph range of speeds. The TTC at FCW and the distance between the Honda and the target at FCW are presented and compared at each speed and user-selected FCW Distance setting. A subset of the current research – the 20- and 35-mph tests – were compared to testing conducted by the Insurance Institute for Highway Safety (IIHS) at speeds of 12 and 25 mph.