| 摘要 |
The present invention relates to an arrangement and a method for braking a vehicle (1). The invention comprises a control device (10) intended to be operated by a driver when it is desired to maintain on a downhill run a substantially constant speed (v0) of the vehicle, braking means (7, 8), comprising a first supplementary brake (7), for braking the vehicle on the downhill run, a cooling system (12) for cooling the first supplementary brake (7), and a control unit (9) adapted to controlling the activation of said braking means (7, 8). The control unit (9) is adapted to activating said braking means (7, 8) with the braking effect (B0) required for maintaining the desired speed (v0) during the whole downhill run, when this is possible without the cooling system becoming overloaded, and, if this is not possible, to activating the supplementary brake with a smaller braking effect (B1) which it is possible to maintain during the whole downhill run without the cooling system (12) becoming overloaded. |
