Vehicle Longitudinal Control Functional Area


On-board systems to provide longitudinal control to allow "feet off" driving, automating the function of speed control, acceleration, and braking. Sensors to detect obstacles or vehicles in the longitudinal path of the vehicle with controls initiated by accelerator and/or brake actuators.

Included In


Functional Requirements

1The vehicle shall monitor the area behind and in front of the vehicle to determine the proximity of other objects to the vehicle.
2The vehicle shall evaluate the likelihood of a collision between two vehicles or a vehicle and a stationary object, based on the proximity of other objects to the vehicle and the current speed and direction of the vehicle.
3The vehicle shall provide position warnings to the driver when an object gets close enough to the vehicle to become a hazard if no action is taken by the driver.
4The vehicle shall provide an interface through which a vehicle driver can initiate, monitor and terminate automatic control of the vehicle.
5The vehicle shall send appropriate control actions (acceleration, braking, or maintaining speed) to the vehicle's accelerator and/or brake actuators.
6The vehicle shall present information to the driver in audible or visual forms without impairing the driver's ability to control the vehicle in a safe manner.