System and Method for Adjustment of Autonomous Emergency Braking Responsive to Changes in Vehicle Mass

An autonomous emergency braking system includes a sensor generating a collision risk signal indicative of an object in a path of travel of the vehicle and a controller. The controller determines whether an indication of a mass of the vehicle is present and, if so, adjusts a default deceleration value corresponding to a predetermined rate of deceleration for the vehicle in response to the mass to obtain a mass-adjusted deceleration value. The controller establishes, responsive to the mass-adjusted deceleration value, successive times for generating first and second braking commands to an engine or brake controller or increasing braking forces for the first and second braking commands configured to cause deceleration of the vehicle at first and second rates of deceleration, the second rate greater than the first. The first and second braking commands are generated responsive to the collision risk signal.