Abstract: A method for operating an internal combustion engine includes: providing a desired power specification for triggering the drive unit; providing a specification of operating point-dependent power ranges for the supplied desired power specification, in which steady-state operation of the drive unit is permissible, a power range that is not permissible in the steady state being defined between the operating point-dependent power ranges; when a change in the desired power specification for the drive unit in a transitional operating mode necessitates traversing the power range that is not permissible in the steady state, triggering the drive unit on the basis of a specification of a guided desired power, the guided desired power specification being determined by guiding the desired power specification.

Abstract: A method is described for operating a drive of a motor vehicle that has at least two shafts, each able to be driven by a shaft drive device, a total drive torque of the motor vehicle corresponding generally to the sum of the shaft torques applied to the shafts. In this context, it is provided that a quantity and/or a change in the quantity of one of the shaft torques is/are taken into account in the open-loop and/or closed-loop control of the remaining shaft torques. A drive device of a motor vehicle as well as an electronic control unit are also described.

Abstract: In a method for starting a hybrid vehicle having a first drive unit and a second drive unit, the setpoint starting torque is generated by the second drive unit. In this method, a starting clutch for connecting the first drive unit is brought into the slipping state when a predefined setpoint torque of the second drive unit is exceeded.

Abstract: A method for operating a hybrid drive having at least one first and one second drive-connected drive machine, in which an actual torque of at least one of the drive machines is influenced by a reference-forming element in that, from a combined setpoint torque, a first setpoint torque is formed for a slow influencing path and a second setpoint torque is formed for a fast influencing path for the first drive machine and a setpoint torque is generated for a fast influencing path of the second drive machine. A provision is made for the lead setpoint torque for influencing the slow influencing path of the first drive machine to be obtained from the unfiltered combined setpoint torque before the combined setpoint torque is processed in the reference-forming element.

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: In a method for operating a hybrid drive of a vehicle, which is driven by a combustion engine and an electric motor, the electric motor is supplied with energy from an energy store having a power reserve and the power of the combustion engine is supplemented by the power of the electric motor during a hybrid drive operation. In a situation in which the vehicle is to be removed as quickly as possible from a dangerous situation, the energy supplied from the energy store to the electric motor is supplied from the power reserve of the energy store when a dangerous situation is detected.

Abstract: In a method for operating an internal combustion engine, a steady-state maximum output torque and a dynamic maximum torque are ascertained. The ascertained steady-state maximum output torque is changed to a resulting steady-state maximum torque by adapting the maximum output torque in such a way that it is equal to or greater than the ascertained dynamic maximum torque.

Abstract: A method for operating a hybrid drive device of a motor vehicle that has at least two different drive aggregates, in particular an electric motor and an internal combustion engine, and having a clutch, the drive aggregates being capable of being operatively connected using the clutch. It is provided that, in a diagnostic, and/or adaptation operating mode; the clutch is operated with a slippage. In addition, the present system relates to a hybrid drive device, a control device for a hybrid drive device, and a motor vehicle aggregate that has both the control device and the hybrid drive device.

Abstract: A method for operating a hybrid drive device, in particular for a motor vehicle, which has at least one combustion engine and at least one electric machine, the combustion engine and the electric machine being mechanically and operatively connectible to each other by a separating clutch, and a slip torque transmitted by the separating clutch being ascertained. There is a provision for the slip torque to be determined as a function of the speed characteristic of a drive shaft of the combustion engine at least when starting and/or stopping the combustion engine and to be taken into account when operating the hybrid drive device.

Abstract: A method for operating a drive device, in particular a hybrid drive device, of a vehicle, in particular a motor vehicle, having at least one internal combustion engine and at least one electrical machine as drive units, which are mechanically coupled to one another, as a function of a torque demand, in particular a filtered torque demand, in a normal operation, an ideal target torque for the particular drive unit being defined for each of the drive units and, in a dynamic operation, a target torque being defined for each of the drive units which together meet the torque demand.

Abstract: In a method for operating a drive device of a hybrid vehicle, in particular a hybrid motor vehicle, having at least one internal combustion engine and at least one electric machine, the torques of the internal combustion engine and the electric machine are added. A torque/torque component which, with respect to a request, is not deliverable by the internal combustion engine because of the system-related inertia of the internal combustion engine, is compensated at least partially by a torque/torque component delivered by the electric machine.

Abstract: The invention relates to a method and a control unit for operating a hybrid vehicle in which at least two power units, at least one of which is an internal combustion engine, provide torque for a hybrid vehicle drive. It is proposed that a required total reserve torque is determined, and limits of presently available reserve torques of each individual power unit are determined.

Abstract: In a method for operating a power-branching hybrid drive having at least one first and one second electric machine coupled via a transmission, as well as having an internal combustion engine which outputs a torque MVM, the electric machines and the internal combustion engine acting together, having their drives connected, the first electric machine is rotation speed-regulated, the second electric machine is torque-controlled, and the internal combustion engine is operated in a rotation speed-regulated manner.

Abstract: In a method for determining a gradient-limited setpoint torque from a requested setpoint drive torque and a controller setpoint torque of a closed-loop speed control, the gradient of an unlimited cumulative setpoint torque, which is a function of the requested setpoint drive torque and the controller setpoint torque of the closed-loop speed control, is limited in a region of the zero crossing of the gradient-limited setpoint torque by a rate-of-change limitation to a maximally permitted or a minimally permitted value. The maximally permitted or the minimally permitted value of the rate-of-change limitation is a function of the controller setpoint torque of the closed-loop speed control.

Abstract: A method for operating a driving device of a vehicle, in particular of a motor vehicle, that has as drive units at least one internal combustion engine and at least one electric machine whose torques are used for generating a drive torque of the vehicle as a function of different operating modes, and which has at least one signal flow controlling at least one drive unit in at least one operating mode, a single signal flow controlling at least one of the drive units in all operating modes by defining at least one torque limit.

Abstract: In a method for operating a hybrid drive of a vehicle having at least one internal combustion engine and at least one first electric machine as drive machines of a first drive train of the vehicle, and an associated first transmission, the total torque of the drive machines is adapted in a shifting operation of the transmission in order to reduce the load at the transmission and/or in order to modify rotational speeds according to the new transmission ratio, and/or the torque gradient of the drive machines is restricted to a specifiable, maximum torque gradient of the resulting total torque of the drive machines of the first drive train in a transition between acceleration operation and trailing throttle operation.

Abstract: The invention relates to a method for operating the drive of a hybrid motor vehicle by an internal combustion engine torque and the torque of at least one electric motor which are superimposed in such a way than a common drive torque of the hybrid motor vehicle is produced. According to said invention, the torque of the internal combustion engine is influenced by the speed of rotation thereof or a signal derived therefrom and the torque of the electric motor is influenced by the speed of rotation or the signal derived therefrom.

Abstract: A method is provided for operating a hybrid drive of a motor vehicle which has a combustion engine, at least one electrical machine, and at least one electrical accumulator, the electrical machine and the electrical accumulator belonging to an electrical system of the motor vehicle. The following steps are provided for implementing the method: subdividing the operation of the electrical machine into adjacent subranges of a) transient compensation operation, b) boost and/or recuperation operation, and c) operation for maintaining the vehicle electrical system; assigning torque limits and/or power output limits of the electrical machine in at least two subranges; and, releasing and/or influencing the particular torque limits and/or power output limits of the subranges as a function of the current state of the electrical accumulator and/or of the electrical machine and/or of the vehicle electrical system.

Abstract: A method for regulating an electromechanically power-splitting hybrid drive system of a motor vehicle, having an internal combustion engine and two electric motors that are coupled by way of a transmission, as well as an electromechanically power-splitting hybrid drive system for a motor vehicle.

Abstract: A control device for a hybrid drive, in particular for a hybrid drive of a motor vehicle having at least one combustion engine and at least one electric motor as driving motors, whose torques are coupled together to form a total torque. A controller is provided which generates an actuating signal for controlling the speed of each of the driving motors, a first actuating signal acting on the electric motor having a higher dynamic response than a second actuating signal acting on the combustion engine.