In the automotive world, technologies are constantly evolving to improve driving safety, comfort and efficiency. Among the most practical and widespread innovations are the speed limiter and cruise control. Although these devices share a common purpose – to help control vehicle speed – they operate in significantly different ways and serve distinct purposes.
What are these devices used for?
Both the speed limiter and cruise control are driving aids. The difference between them is that the limiter prevents the driver from exceeding the speed he has programmed. While the cruise control maintains the programmed speed automatically without the driver using the accelerator pedal.
The speed limiter
A speed limiter is an electronic system designed to prevent a vehicle from exceeding a preset speed chosen by the driver. The operation is quite simple: the driver selects a maximum speed, and if this speed is reached, the system automatically intervenes to limit engine power, thus preventing the vehicle from accelerating. If necessary, strong support allows you to cross the set speed limit. The advantage of the limiter is that it can be used in all circumstances, on all types of infrastructure (motorway, road, city) and whatever the traffic density, thus helping to avoid unintentional speeding. and the fines that may result. Its use is approved according to international specifications (Geneva Regulation No. 89).
Cruise control
In contrast, cruise control, often called “autopilot”, keeps the vehicle at a constant speed set by the driver, without having to use the accelerator pedal. This system is ideal for long motorway journeys, reducing driver fatigue and enabling more economical and less exhausting driving. Conventional cruise control maintains the selected speed until the driver deactivates the system or presses the brake. Newer versions, like adaptive cruise control, go further by automatically adjusting speed based on surrounding traffic using sensors and radars.
Cruise control and speed limiter: are they necessary for driving?
The limiter acts as a preventative safety device to prevent speeding, while the cruise control is a convenience tool designed to maintain a constant speed without manual intervention. Both technologies, when used wisely, can greatly improve the driving experience while increasing safety on the roads.
It is important to note that these systems do not replace the driver’s attention and responsiveness. They are designed to assist the driver, but vigilance remains essential. In adverse weather conditions or unpredictable situations, it may be necessary to regain manual control of the vehicle.
Sources:
“Speed limiter and cruise control: Some definitions provided by Road Safety“- Road safety
“Comparison of limiter and cruise control“- stage-de-sensibilisation.fr