Method and system for controlling a vehicle having a hybrid drive

摘要

In a method for controlling a hybrid drive which is driven by an internal combustion engine designed as a first drive unit, and by a second drive unit, the internal combustion engine and the second drive unit contribute individually or jointly to the drive of the vehicle, and pollutant emissions are kept at the lowest possible level in all operating states of the hybrid drive. At least one control function for the internal combustion engine is carried out by a coordination unit which determines the point in time at which the internal combustion engine or the drive unit alone, or the internal combustion engine and the drive unit simultaneously, contribute to the drive of the vehicle.

主权项

1. A method for controlling a vehicle having a hybrid drive including a first drive unit and a second drive unit, the first drive unit being an internal combustion engine, the method comprising:
selectively controlling the internal combustion engine and the second drive unit with the aid of a coordination unit, wherein the coordination unit determines respective points in time when the internal combustion engine and the second drive unit contribute to overall driving of the hybrid drive, each of the internal combustion engine and the second drive unit being configured to be selectively driven based on the coordination unit determination: (a) alone, whereby only one of the internal combustion engine or the second drive unit contributes to the overall driving of the hybrid drive; or (b) jointly, whereby both the internal combustion engine and the second drive unit contribute to the overall driving of the hybrid drive; and performing at least one control function for the internal combustion engine by the coordination unit; wherein an exhaust gas recirculation valve position is set by the coordination unit as a function of respective contributions to the vehicle torque from the internal combustion engine and the second drive unit and of a change in torque over time.