Speed Governors

Speed Governor or Speed Limitation Device (SLD) is a micro-controller based electronic unit, which constantly monitors the speed of a vehicle and controls the vehicle speed within the preset limit. The Product offers a variety of benefits to the fleet owners, drivers and passengers.

Why Speed Governors?

As per National Crime Records Bureau Data (2011), road accident deaths in India account for the highest amongst unnatural deaths with over 35% of total causes of deaths.

Over speeding causes the maximum accidents. Thus the solution lies in controlling over speeding of transport vehicles thereby inducing discipline amongst drivers through use of technology. Speed Governors is such a device that restricts the maximum speed of a vehicle to a preset limit.


Speed Governor consists of three basic components:

  • Electronic Control Unit (ECU): The Brain of SG regulates the fuel flow to engine by controlling the Solenoid valve.
  • Fuel Control Valve / Actuator: Regulates the fuel flow to the engine based on the vehicle speed.
  • Speed Sensor: Fitted on the Vehicle Gearbox. Measures the Vehicle speed and transmits to the ECU.


Types of Speed Governors:

     1. Electronic Speed Governor

Electronic Speed Governor is a recently developed tool to provide maximum driving speed limit through an electronically controlled fuel Injection System.

     2. Variable Speed Governor

An Electronic Self Programmable Speed Governor for Vehicles which is pre-programmed on the basis of speed limit specified by the government authority for different city roads & highways. Vehicle position is measured through the inbuilt GPS Receiver and Speed limit is programmed automatically from the Memory database.

     3. Adaptive Speed Governor

An Electronic Speed Governor for Vehicles which is pre-programmed on the basis of speed limit specified for a specific region such as Airport, factories, institutional area, Construction Site etc.

     4. Fly By Wire Electronic Speed Governor

Fly By Wire Speed Limiter*, model FBW99 is state of art technology, indigenously developed product. FBW99 is used for Speed Control of Vehicles having Electronic accelerator paddle.

The advantages of the Speed Governor are:

  • Better safety by avoiding over-speeding.
  • Preventive rather than reactionary.
  • Reduced strain on engines, thereby increasing the life of engines.
  • Increased Fuel Efficiency.
  • Improved Operational Efficiency.
  • Increased Safety.
  • Reduced fuel consumption.
  • Reduced maintenance cost for the vehicle owner(s).
  • Reduced strain on engines, thereby increasing the life of engines.
  • Reduced pollution, improving the environment.


Driver & environment Benefit:

The Speed governor operates without effecting driving characteristics. It limits speed but leaves engine power intact. Besides improving road safety tremendously, it is and investment that results in fuel savings, reducing pollution, engine, brake and type wear.


The brain of the Speed Limiter is an Electronics Control unit that installed to received impulses from a speed sensor and activates a solenoid to restrict fuel when the speed Limit is touched.

Easy Installation:

The Speed Governor is designed for a very easy and simple fitment as against the other designs based on accelerator control which take more than an hour.

Speed Limitation:

The Speed Governor does not affect the acceleration in any way.

Approvals and Certifications:

  • The Speed Governor is approved and certified by ARAI (Automobile Research Association of India, Pune) for fitment in a wide range of vehicles.
  • The Speed Governors are certified as per GSO standard: applicable in GCC (Gulf Cooperation Countries)