Abstract:
A method is described for operating a hybrid drive system which has a first drive unit, in particular an internal combustion engine, and a second drive unit, in particular an electric motor, which includes activating the first drive unit and the second drive unit in such a way that the first drive unit and the second drive unit each provide an output variable for the purpose of providing a total output variable; limiting the output variable provided by the first drive unit to a limiting value which is less than a maximum output variable which may be provided by the first drive unit; canceling the limitation if the output variable provided by the second drive unit corresponds to a maximum output variable which may be provided by the second drive unit.
Abstract:
A method for operating a drive device of a motor vehicle, which includes at least one internal combustion engine and at least one electric machine, a driving resistance, in particular an uphill gradient, being ascertained and the internal combustion engine being operated as a function thereof. The internal combustion engine is operated as a function of a driving resistance to be expected, which is determined as a function of an instantaneous driving resistance. A drive device for a motor vehicle is also described.
Abstract:
In a method for regulating the vehicle speed and the engine speed in a motor vehicle having a manually shifted transmission, if the driver actuates the clutch during ongoing speed regulation, an upshift probability is calculated for the possibility that the driver will select the next higher gear step as a target gear and, when the clutch is actuated, the engine speed is regulated according to a time-dependent function selected on the basis of the upshift probability and the target gear, and the speed regulation is resumed after the release of the clutch.
Abstract:
Input device for a cruise control system in motor vehicles, having an accelerator pedal, a switch for input of a desired speed and a determination device which increases the desired speed as a function of the duration of operation of the switch, wherein the determination device changes the function which determines the increase in the desired speed as a function of the operation of the accelerator pedal.
Abstract:
A method and a device for setting a gear ratio of the transmission while a distance and/or vehicle-speed control system (ACC system) is activated. A setpoint variable, as a function of which at least the driving motor of the vehicle is controlled, is input. The setpoint variable or a value derived from this setpoint variable is limited in response to the existence of a first operating state, and the gear ratio is then set as a function of the limited variable, or as a function of the limited value. The gear ratio is set as a function of the setpoint variable, or as a function of the value, in response to the existence of a second operating state. The method and device prevent unnecessary and uncomfortable occurrences of downshifting during ACC operation, without losing the option of accelerating sharply.