Road speed governor is a limiter used to limit the maximum speed of a vehicle. The speed governor can be installed for cars, PSV, MMV & HMV, Vans,Tankers, Bus,Truck and Commercial vehicles.

Excessive speed in driving heavy vehicles has been a social and governmental issue around the world for many years, primarily from the perspective of road safe-ty. With increased engine power and long axle ratio, attainable speeds for trucks are currently much higher than the speed limits on highways and secondary roads in many countries.

One effective solution to prevent speeding in commercial vehicles is to equip them with a road speed limiter system, which restricts maximum road speed to the required speed limit without loss of engine power. This is realized by limiting the required fuel demand ac-cording to a set speed limit. The maximum speed limit is set using an electronic control unit.

Information about the current speed of the vehicle is measured with a speed sensor that supplies an electronic speed signal to the control unit. The control unit limits the fuel output in different ways, depending on the fuel injection technology of the engine. In addition to its main function, limiting the maximum speed, the system offers a variable speed limiter as an option. The driver can activate this feature below the maximum speed limit in areas with lower speed limits.

Furthermore, the speed limiter includes additional speed limit inputs to preprogram smaller speed limits than the maxi mum speed. This functionality can be used to prevent fast driving