Interface controller, energy-storage device, drive-train assembly, method for retrofitting and operating a drive train including an energy-storage device, computer program and electronic storage device

A drive train assembly, comprising:

• a drive train including a drive train control device;
• and
• an energy storage device configured for retrofitting on a drive train, the energy storage device including an energy storage unit, an energy storage control device, and an interface control device which is operatively connected to the energy storage control device, the interface control device being configured for integrating the energy storage device for selectively storing a drive energy in, and delivering the drive energy to, the drive train, the interface control device including at least one first interface which is configured for receiving at least one demand parameter of the drive train, the interface control device being further configured for specifying, depending on the at least one demand parameter, at least one hybrid control parameter for operating the energy storage device, the energy storage device being operatively connected to the drive train and thereby the drive train assembly being configured for energy being selectively stored by the drive train in the energy storage unit of the energy storage device and supplied to the drive train from the energy storage unit, the interface control device of the energy storage device being configured for receiving the at least one demand parameter from the drive train control device and, depending on the at least one demand parameter, for specifying the at least one hybrid control parameter.

A method for retrofitting a drive train, the method comprising the steps of:

• providing the drive train and an energy storage device, the drive train including a drive train control device, the energy storage device being retrofitted to the drive train;
• operatively connecting the energy storage device to the drive train in such a way that energy is selectively stored by the drive train in an energy storage unit of the energy storage device and is supplied to the drive train from the energy storage unit;
• operatively connecting an interface control device of the energy storage device to the drive train control device of the drive train in such a way that at least one demand parameter is received by the drive train control device by way of the interface control device;
• and
• using the interface control device to specify at least one hybrid control parameter, depending on the at least one demand parameter.