Patent ID: 9096215
Filing Date: 2015-08-04
Classification: B60W,F01P,Y02T

Abstract:
1. A method to control a drivetrain of a vehicle, especially a utility vehicle, wherein the drivetrain comprises an engine with a cooling system, the cooling system comprising an engine fan, wherein the cooling system and the drivetrain is controlled by an electronic control unit (ECU), and wherein the ECU having access to topographic data of an upcoming route, comprising determining, a topology of an upcoming route of the vehicle, estimating the load of the engine dependent of the topology of the upcoming route, estimating a temperature variation of the cooling system during the upcoming route, and controlling the drivetrain dependent on the estimated temperature variation, such that an actual temperature of the cooling system is kept below a first temperature threshold value during the upcoming route of the vehicle, and wherein the first temperature threshold value is dependent on a temperature at which the engine fan is activated, wherein the method further comprises at least one of the steps of controlling a fuel throttle of the engine, such that the actual temperature of the cooling system is kept below the temperature threshold value, limiting the output torque of the engine, and controlling a shift strategy of a transmission, such that the actual temperature of the cooling system is kept below the temperature threshold value.