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

Claim 7:
8. A powertrain for a vehicle, the 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 to 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 powertrain further comprising a control device configured to:
control the drive unit to reduce the provided propulsion power when the vehicle is approaching an upcoming descent, which fulfils predetermined criteria;
disconnect the drive unit from the first cooling circuit;
connect the auxiliary brake device with the first cooling circuit; and
control the auxiliary brake device to brake the vehicle down the descent.