Abstract: An on-board electrical system for motor vehicles has a battery, a generator and at least one normal consumer that is connected to the battery in a switchable manner. A DC voltage/DC voltage converter is connected on its primary side to the battery and on its secondary side to a high-load resistor. A switch connects the high-load consumer to a storage device in a first switching position, and to the primary side in a second switching position. A controller controls and operates the switch between the first and the second switching position. A device that detects the actual electrical power of the high-load consumer is associated with the high-load consumer, and is connected at the output end to the controller.

Abstract: Methods and systems are provided for an on-board electrical system for a motor vehicle that includes one or more power sources and an electrical subsystem with a switch that can be actuated to selectively bypass a DC/DC converter and a storage device, responsive to electrical parameters such as the power demand of high-power consumers. In one example, when high-power consumers have low and constant power requirements, the switch may be positioned to bridge the DC/DC converter and storage device. Further, the method includes selectively controlling the power source in order to meet peak power demands with the power source operating at the greatest efficiency for the given operating conditions.

Abstract: The disclosure relates to a motor vehicle having a communications device. The communications device comprises at least one wireless communications module, which facilitates a wireless communications link between at least one vehicle component, which is connected via a communications line to the wireless communications module, and a communications partner. The motor vehicle also comprises an isolator that can be manually actuated and disconnects in hardware the wireless communications link between the vehicle component and the communications partner.

Abstract: An on-board electrical system for motor vehicles has a battery, a generator and at least one normal consumer that is connected to the battery in a switchable manner. A DC voltage/DC voltage converter is connected on its primary side to the battery and on its secondary side to a high-load resistor. A switch connects the high-load consumer to a storage device in a first switching position, and to the primary side in a second switching position. A controller controls and operates the switch between the first and the second switching position. A device that detects the actual electrical power of the high-load consumer is associated with the high-load consumer, and is connected at the output end to the controller.

Abstract: Methods and systems are provided for an on-board electrical system for a motor vehicle that includes one or more power sources and an electrical subsystem with a switch that can be actuated to selectively bypass a DC/DC converter and a storage device, responsive to electrical parameters such as the power demand of high-power consumers. In one example, when high-power consumers have low and constant power requirements, the switch may be positioned to bridge the DC/DC converter and storage device. Further, the method includes selectively controlling the power source in order to meet peak power demands with the power source operating at the greatest efficiency for the given operating conditions.

Abstract: The disclosure relates to a motor vehicle having a communications device. The communications device comprises at least one wireless communications module, which facilitates a wireless communications link between at least one vehicle component, which is connected via a communications line to the wireless communications module, and a communications partner. The motor vehicle also comprises an isolator that can be manually actuated and disconnects in hardware the wireless communications link between the vehicle component and the communications partner.