Method for determining a rotational speed of a driveshaft of an internal combustion engine
AssigneeRobert Bosch GmbH
InventorsMatthias Cwik, Markus Roessle, Ewald Mauritz, Stefan Tumback
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Abstract
A method determines a rotational speed of a driveshaft of an internal combustion engine. The rotating driveshaft assumes different rotary positions at different times. An average gradient of rotary speed for the driveshaft is determined at at least two rotary positions. Subsequently, an average rotational speed for the driveshaft is obtained from a past average gradient of rotary speed at at least one later point in time.
Claims17
A method for determining a rotational speed of a driveshaft of an internal combustion engine, wherein the rotating driveshaft assumes various rotary positions at different points in time, the method comprising:
- determining an average gradient of rotary speed for the driveshaft from at least two rotary positions;
- and
- subsequently obtaining an average rotational speed for the driveshaft from the past average gradient of rotary speed at at least one later point in time.
A method for determining a rotational speed of a driveshaft of an internal combustion engine, wherein the rotating driveshaft assumes various rotary positions at different points in time, the method comprising:
- determining an average rotary speed for the driveshaft from rotary speed at at least two rotary positions;
- and
- obtaining an average rotational speed for the driveshaft from the average rotary speed at at least one later point in time,
- wherein an alteration component is added to the average rotational speed at a point in time for determining a prognosticated rotational speed.
Dependencies are inferred from the claim text.