Deka electronic mechanical bus speed limiter is a device installed in trucks to control and limit their maximum speed for cars. It is designed to enhance safety on the roads by ensuring that trucks travel at speeds that are safe for the vehicle, its occupants, and other road users.
The mechanism of a mechanical car speed limiter devices typically involves a governor or a similar device that regulates the engine’s RPM (revolutions per minute) to control the vehicle’s speed. As the truck approaches the set speed limit, the governor activates a throttle valve to reduce the amount of fuel being delivered to the engine, which in turn slows down the truck.
In some regions, there are legal requirements for trucks to be equipped with speed limiters. For example, the European Union has had a requirement since 1992 for new trucks to be fitted with a speed limiter installations for cars that caps the speed at either 80 km/h (50 mph) or 90 km/h (56 mph), depending on the axle weight. Other countries may have similar regulations.
The use of mechanical speed limiters has been shown to reduce accidents involving trucks, as well as decrease fuel consumption and emissions by promoting more efficient driving habits.
