StartStoppIntervalle

StartStoppIntervalle, often abbreviated as SSI, refers to the duration of time a vehicle's engine is switched off by an automatic start-stop system. These systems are designed to improve fuel efficiency and reduce emissions by automatically turning off the engine when the vehicle is stationary, such as at traffic lights or in heavy traffic. The engine restarts automatically when the driver releases the brake pedal or engages the clutch.

The length of time the engine remains off is the start-stop interval. Factors influencing the duration of these intervals include the specific vehicle's system programming, battery charge level, ambient temperature, and the operational status of essential systems like air conditioning. The system is programmed to restart the engine if certain conditions are met, such as a significant drop in battery voltage or a need for cabin climate control.

Start-stop systems are increasingly common in modern vehicles, particularly in urban driving environments where frequent stops and starts are unavoidable. The effectiveness of SSI in reducing fuel consumption and emissions is directly related to the frequency and duration of these engine-off periods. For instance, longer intervals in congested traffic contribute more significantly to fuel savings than very short intervals. The technology aims to optimize these intervals to balance efficiency gains with driver comfort and system reliability.