Motor vehicle infotainment system having a separate display unit

A motor vehicle comprising an infotainment system for providing infotainment functions, the infotainment system comprising:

• a controller, and
• a display unit that is structurally separate from the controller and functions as a user interface and has a rechargeable battery and a screen for displaying display data,
• the motor vehicle further comprising
• a retaining device disposed in an interior of the motor vehicle and configured to mechanically retain the display unit so that the retaining device and the display unit are non-destructively and reversibly detachable from one another, the retaining device comprising an integrated charging device for charging the rechargeable battery and a signal unit which is configured to receive and provide an ignition-on signal of the motor vehicle from a CAN (Controller Area Network) bus,
• wherein the controller is configured to transmit the display data to the display unit even when the display unit is detached from the retaining device.

A display unit for an infotainment system of a motor vehicle, comprising:

• a mechanical interface, which is designed to connect the display unit mechanically or magnetically, or both, reversibly detachably and nondestructively with a retaining device of the motor vehicle,
• a dedicated computing unit, which is configured to cooperate with a controller of the infotainment system of the motor vehicle, and
• a rechargeable battery for enabling operation of the display unit when the display unit is detached from the retaining device,
• wherein the display unit is configured to receive an ignition-on signal from a signal unit of the retaining device, when the display unit is attached to the retaining device, and wherein the display unit is configured to adapt its electric power demand to an operating state of the motor vehicle by automatically deactivating the display unit when the motor vehicle is shut off.