Auto Start Stop Supercapacitor Module

Auto Start Stop Supercapacitor Module

Automatic Start-Stop A technical innovation which helps the environment

The idea behind the start-stop system is simple: If the engine is stopped for short periods, for example while waiting at traffic lights, fuel consumption and emissions are reduced. In this way, the automatic start-stop system helps to save fuel and protect the climate. With this technology, CO2– emissions can be reduced by 3 – 8%. The benefits to the environment and improved efficiency have caused a rapid spread of automatic start-systems to all classes of vehicle. In view of the more stringent EU regulations on pollutant emissions of motor vehicles, automotive manufacturers are also increasingly implementing intelligent start-stop systems in their ranges.

How automatic start-stop systems work

The start-stop system detects when the car is stationary and on the basis of sensors it determines a series of other factors about the operating mode of the vehicle. If the driver has stopped at a traffic light and sets the transmission to neutral, the start-stop system stops the engine. With some more recent models, the engine even switches off if the speed falls below a certain value. Although the engine, and therefore the primary source of power for all systems is switched off, all of the electrical consumers and assistants are still supplied with power. This is provided by the battery of the vehicle. As soon as the clutch is actuated, the automatic start-stop system restarts the engine. For vehicles with automatic or dual clutch transmissions, the automatic start-stop system responds to actuation of the brake alone. If the vehicle is braked to a standstill and the driver’s foot remains on the brake pedal, the automatic start-stop system stops the engine. When the brake is released, the automatic system starts the engine again.