Abstract: A controller may determine a battery consumption configuration of the machine based on information regarding the machine, and obtain fuel burn data indicating an amount of fuel burned by the machine. The controller may determine a simulated battery consumption of the machine based on the battery consumption configuration and the fuel burn data. The controller may determine a simulated battery charge level based on the simulated battery consumption. The controller may determine whether the simulated battery charge level satisfies a charge level threshold. The controller may derate an engine of the machine based on determining that the simulated battery charge level does not satisfy the charge level threshold.

Abstract: The invention relates to a cleaning appliance, wherein in order to access same, an access authorization stored on an authorization carrier is required, the appliance including two or more authorization carriers with access authorizations stored thereon which are linked to different authorization profiles, and a detection unit for detecting the access authorization of an authorization carrier, wherein a range of functions dependent on the authorization profile linked to the access authorization can be provided to an operator by the cleaning appliance. In order to provide such a cleaning appliance which is more user-friendly in operation, it is proposed that each authorization carrier comprises an identification device for providing an identifier which is associated with the particular authorization profile of the authorization carrier and which is perceivable by the operator using a sensory organ, wherein identifiers associated with different authorization profiles are different from one another.