Patent ID: 11884275
Assignee: SCANIA CV AB
Field: Transport (Mechanical engineering)
Classification: CPC B  F  Y | IPC B  F

Claim 0:
1. A method, performed by a control device, for controlling a vehicle in association with a descent, the vehicle having a powertrain comprising:
a drive unit configured to provide propulsion power;
an auxiliary brake device; and
a first cooling circuit comprising a first coolant,
wherein the drive unit and the auxiliary brake device are arranged to be selectively connected or disconnected with/from the first cooling circuit, wherein the drive unit has a first maximum temperature and the auxiliary brake device has a second maximum temperature higher than the first maximum temperature,
the method comprising:
identifying an upcoming descent, which fulfils predetermined criteria and controlling the drive unit to reduce the provided propulsion power when the vehicle is approaching the upcoming descent;
disconnecting the drive unit from the first cooling circuit;
connecting the auxiliary brake device with the first cooling circuit; and
controlling the auxiliary brake device to brake the vehicle down the descent.