Road speed limiter

A Road speed limiter (RSL) means a device whose primary function is to control the fuel feed to the engine, in order to limit the vehicle speed to a preset value. This is mainly achieved through various methods, like solenoid valve based fuel control, control cable based accelerator pedal linkage control, electronic pedal voltage adjustments or direct ECM control. Thinture manufactures all mentioned models as the target market will have different  makes and models of vehicles. Apart from single speed control devices, we have developed dual and multiple speed limiters for some of the developed countries.

Dual Speed Limiters can automatically switch over to two different speeds. These two preset speeds can be set individually. We have dual speed versions for Electronic pedal interface & Valve based type. GPS based Multiple speed limiter can switch over the vehicle speed according to the real time speed limits prevailing in the area where vehicle is running.


Thinture manufactures mainly two types of road speed limiting devices. Direct fuel control system uses a solenoid valve connected in-between the vehicle fuel line, ie. joining fuel filter and fuel pump through the system, in order to control the fuel flow, when vehicle speed exceeds the set limit.


The electronic pedal interface type device, other wise called as a drive-by-wire (DBW) system is a complete electronic device. The signal from the electronic accelerator pedal is read by the system and supplied back to the vehicle ECM, till vehicle speed exceeds the speed limit. The system will control & adjust the voltage level given into the vehicle ECM, in order to keep the vehicle speed under the set limit.

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