Method for operating display device for displaying efficiency of motor vehicle, involves determining driving status information of vehicle for determining current value of efficiency of vehicle

摘要

The operating method involves determining driving status information of a vehicle for determining a current value of the efficiency of the vehicle. A display element (6) of a display device (1) is moved in a rotation axis (7) against a vertical or horizontal alignment around an angle, which stay in a specific ratio to the difference between the current value and a reference value of the efficiency. The display device has a speedometer (3), through which speed of the motor vehicle is displayed with respect to a horizontally arranged speed scale (4). The speed of the vehicle, torque of a drive unit of the vehicle, transmission ratio set at the transmission of the vehicle, a cooling water temperature of a cooling device for the drive unit, oil temperature of an oil circuit and a distance to a preceding vehicle is determined as drive status information. An independent claim is included for a display device for displaying the efficiency of a motor vehicle.