Control unit and method for controlling the speed of a vehicle in a distance-controlled vehicle column at a ascent

A method and control unit for controlling the speed of a vehicle in a distance-controlled vehicle column at a ascent, the vehicle column comprises a first vehicle A and a second vehicle B and the first vehicle A is a vehicle in front of the second vehicle B. The control unit is arranged in the second vehicle B, and includes a speed unit for determining an acceleration value a The control unit further comprises a mountain unit for determining whether the first vehicle A is on a steep slope is formed, and a calculation unit which is adapted to compare the acceleration value a When a is