Activation device, headlamp and projection method

Method A method for activating a headlamp, wherein, depending on driving dynamics sensor signals of a vehicle, a light source unit of the vehicle is controlled to generate a driving profile light distribution on a roadway, the method comprising:

• determination of determining a middle curve radius traversed by the vehicle in a center of gravity of the vehicle,
• calculating a first circular radius for a left guide line of the driving profile light distribution and of a second circular radius for a right guide line of the driving profile light distribution by a changing of the length of a middle radius of a middle circular path, on which the center of gravity of the vehicle lies, on the one hand up to the first curve radius of a left circular path, which touches a left side edge, and on the other hand up to the second curve radius of a right circular path, which touches a right side edge, and
• generating an activation signal for the light source unit, so that in cornering a left guide line is projected onto the roadway through a circular ring section on the left circular path and a right guide line is projected onto the roadway through a circular ring section on the right circular path.