Method for automatically stopping an internal combustion engine of a motor vehicle
AssigneeDaimler AG
InventorWerner Bernzen
Life of this patent
Estimating the term…
Abstract
In a method for stopping an internal combustion engine of a motor vehicle, stop prevention conditions are established for preventing automatic stopping of the internal combustion engine even when all stop conditions are me but one of the stop prevention conditions is not met. One of the stop prevention conditions is for example an activated risk status (GS), the risk status (GS) being activated when an acute indication (AI) is present. After the acute indication (AI) has ended, the risk status (GS) remains activated until a safety indication (SI) is present, so that, due to the internal combustion engine remaining switched on, maneuverability of the motor vehicle is maintained at least until the safety indication (SI) is recognized
Claims9
A method for automatically stopping an internal combustion engine (2) of a motor vehicle (1), when certain stop conditions (22) are met, said method comprising the steps of:
- preventing an automatic stop of the internal combustion engine (2) when a stop prevention condition (23) is met,
- the stop prevention condition (23) being met when a risk status (GS) is active and the risk status (GS) is activated when an acute indication (AI) is present,
- after the acute indication (AI) has ended, keeping the risk status (GS) activated until a safety indication (SI) is present, so that, due to the internal combustion engine (2) remaining switched on, maneuverability of the motor vehicle (1) is maintained at least until the safety indication (SI) is present,
- the acute indication (AI) being an acceleration indication (BI) or an emergency braking indication,
- the acceleration indication (BI) being activated under the minimum prerequisite that a vehicle acceleration in one direction is greater than a first acceleration limit value, and the safety indication (SI) being activated under the minimum prerequisite that at least the magnitude of the vehicle acceleration is less than a second acceleration limit value, the second acceleration limit value being less than, or equal to, the first acceleration limit value, and
- the emergency braking indication being activated under the minimum prerequisite that one of full braking and automatic braking is carried out.
Dependencies are inferred from the claim text.