Speed Limiter

A Speed Limiter is a device that is fitted into a vehicle and its primary function is to control the speed of the vehicle by limiting its ability to accelerate past the pre-set Speed Limit.

For instance a licensed technician will be able to program the controlling speed limit before installing the device, if the pre-set speed limit is programmed at 80 km/h - once the Speed Limiter is installed into the vehicle, the Speed Limiter will limit the vehicle to travel past the Speed of 80 km/h even if the accelerator is fully pressed.

What is the purpose of having a Speed Limiter installed?

The primary reason for having a Speed Limiter installed into your vehicle is to avoid any hazards related to over-speeding. It helps the driver focus better on the road by making sure they do not have to constantly check if the vehicle is over speeding. Speed Limiters also improves the fuel efficiency of a vehicle substantially.

What are the types of Speed Limiters in the market?

There are various types of Speed Limiters/Speed Governors that are available in the market. The most common types are classified as below.

Single Speed Limiter: A Single Speed Limiter is used to set a single speed limit. In this type of Speed Limiter, once a speed limit is programmed, the vehicle will not be able to travel above the pre-programmed limit. This pre-programmed Speed Limit cannot be altered with by the driver or user of the vehicle and can only be re-programmed by a licensed technician.

Dual Speed Limiter: A Dual Speed Limiter is the type of Speed Limiter which limits the vehicle speed in two different Speed Limit settings. A vehicle fitted with Dual Speed Limiter can be programmed in a way that the vehicle speed is limited based on the road terrain. For Eg: Vehicle must have a speed limit of 100 km/h on road and the same vehicle must have a speed limit of 80 km/h off road, the Dual Speed Limiter will be able to predict the terrain of the vehicle through an accelerator component in built. The Dual Speed Limiter will adjust the pre-set Speed Limit based on the terrain.

Intelligent Speed Limiter: An Intelligent Speed Limiter is a type of Speed Limiter which is integrated with a GPS tracking system. The GPS device will transmit information to the Intelligent Speed Limiter such as the current location speed limit; the Speed Limiter retrieves this information and limits the speed of the vehicle according to the GPS data.

What's the difference between cruise control and a speed limiter?

Speed Limiters primary function is to cut off the acceleration flow even when fully pressed at the preset input speed limit. For eg: If the Speed Limiter installed limits the vehicle speed at 80 km/h, the maximum speed the vehicle can accelerate to is 80 km/h even when the accelerator pedal is fully pressed.

Cruise control works by electronically managing the acceleration of the vehicle. Its different from a Speed Limiter because it does not limit the acceleration function when fully pressed and the driver is able to disable cruise control with ease by a switch of a button.

How does the Safemax Speed Limiter work?

DBV (DriveByValve) Speed Limiter:

DriveByValve (DbV) Speed Limiters is the device used for vehicles with a mechanical accelerator pedal.

Let's assume the Speed is set at 80 km/h.

• The vehicle will be running till 79 km/h & when it reaches 80 km/h, Safemax DBV will start to function.
• The Speed Signal is received from the Speed sensor which is connected to the E.C.U & once the set speed is attained, information is passed to the F.C.U so that it will start to regulate the fuel feed to the engine.
• Our advantage is the in-built bypass which will help the vehicle to maintain the set speed.
• Once the vehicle goes below the set speed the F.C.U will be opened and thus the vehicle runs smoothly.

DBW (DriveByWire) Speed Limiter:

DriveByWire (DbW) Speed Limiters is the device used for vehicles with an electro-mechanical accelerator pedal.

Let's assume the Speed is set at 80 km/h:

• The vehicle will be running till 79 km/h & when it reaches 80 km/h, Safemax DBW will start to function.
• The Speed Signal is received from the Speed sensor which is connected to the Electronic Sensor Adapter.
• This Adapter will convert the speed pulse to square wave pulse which is compatible to the E.C.U
• The Device will control the output voltage of the electronic accelerator pedal which is sent to the ECM of the vehicle.
• This results in regulating the fuel to the engine. Thus the speed of the vehicle can be controlled.
• The voltage will be controlled only when the set speed is reached. Once the vehicle goes below the set speed the E.C.U will not control the output voltage.

How we differ from others?

• ✔ Aging resistant high quality stainless steel metal enclosure.
• ✔ Flame retardant automotive grade wiring harness.
• ✔ Custom designed, 3 layer internal wire braided hose.
• ✔ PCB assembled in advanced SMD work station.
• ✔ Safemax proprietary solenoid fuel valve system.
• ✔ Four stage quality check..

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