Tachometer having a dual display for a motor vehicle

摘要

In a tachometer having a dual display for a motor vehicle, the dial (20) is provided with scale markings (20S), which are switched on when an ignition key is turned on, with numerical values (20L) for low speed, which are used for a low speed range and are illuminated when the vehicle speed varies, for example, from 40 to 140 km/h, and with numerical values (20H) for high speed, which are used for a high speed range and are illuminated when the vehicle speed varies, for example, from 140 to 280 km/h. The current vehicle speed is compared with a reference speed (for example, 140 km/h) in the form of a voltage, and the numerical values are subsequently selectively illuminated in order to display the low or high speed. Furthermore, the pointer (14) is preferably rotated at a rate of 10 km/h per scale marking interval in the low speed range but at a rate of 20 km/h per scale marking interval in the high speed range. <IMAGE>