Control Device and Method for Controlling a Cruise Control System

A method, performed by a control device, for controlling a cruise control system of a host vehicle, said cruise control system configured to control vehicle speed in dependence of a set speed (ccSet) through control of output torque of at least one propulsion unit of the host vehicle,

• the method comprising:
• simulating (S101, S201) vehicle speed of the host vehicle for an upcoming road section under a condition of a predetermined torque limitation (Tq_lim) being active and in consideration of a current set speed of the cruise control, thereby determining a simulated vehicle speed profile for the host vehicle, wherein said predetermined torque limitation (Tq_lim) limits the output torque that the cruise control system may request from the at least one propulsion unit,
• optionally determining (S202) an estimated following distance profile, relative to a target vehicle, for the host vehicle for the upcoming road section based on the simulated vehicle speed profile for the host vehicle, and
• in response to a determination that the simulated vehicle speed profile for the host vehicle fulfils a first predefined condition or that the optionally determined estimated following distance profile fulfils a second predefined condition, activating (S104, S205) the predetermined torque limitation (Tq_lim), if not already active.