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US 8,275,534 B2Granted
Method and computer program for operating an internal combustion engine, and control unit
AssigneeDr. Ing. h. c. F. Porsche AG
InventorTobias Maria Berr
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Abstract
A method makes it possible to measure and evaluate the efficiency of a start-stop system of a vehicle having an internal combustion engine, and on the basis of the measurement, to optimize the efficiency in a vehicle-specific fashion or with regard to the driving behavior of the driver.
Claims11
A method of operating an internal combustion engine of a motor vehicle, the method which comprises:
- automatically starting the internal combustion engine in dependence on at least one activation condition and/or automatically deactivating the internal combustion engine in dependence on at least one deactivation condition;
- measuring the at least one activation condition and/or the at least one deactivation condition while the motor vehicle is at a standstill;
- and
- storing a presence of the activation conditions and/or deactivation conditions in a memory and evaluating the presence of the activation conditions and/or deactivation conditions in order to diagnose a control of the internal combustion engine;
- starting a first time counter when the vehicle comes to a standstill, and stopping the first time counter when the vehicle starts moving;
- and
- prohibiting a deactivation of the internal combustion engine if a value of the first time counter is higher than a predefined threshold value.
4 more elements
Dependencies are inferred from the claim text.