Method for averaging pulsating measurement quantities
AssigneeRobert Bosch GmbH
InventorThomas Farr
Life of this patent
Estimating the term…
Abstract
A method for averaging pulsating measurement quantities is disclosed. First, time-discrete measurement values (1) of the measurement quantity are recorded. Subsequently, first filtering of the measurement values (1) is carried out with a first filter time constant, during which a first signal (2) is obtained, and second filtering of the measurement values (1) with a second filter time constant, during which a second signal (3) is obtained, the second filter time constant being greater than the first filter time constant. Intersection points (4), at which the first signal (2) and the second signal (3) intersect, are then determined. Lastly, the arithmetic mean of the measurement values (1) between the intersection points (4) is taken.
Claims10
A method for averaging pulsating measurement quantities, the method comprising:
- recording, via an electronic control device, time-discrete measurement values (1, 1′, 1″) of the measurement quantity,
- first filtering of the measurement values (1, 1′, 1″) with a first filter time constant and via the electronic control device, during which a first signal (2) is obtained;
- second filtering of the measurement values (1, 1′, 1″) with a second filter time constant and via the electronic control device, during which a second signal (3) is obtained, the second filter time constant being greater than the first filter time constant;
- determining, via the electronic control device, intersection points (4;
- 6;
- 9), at which the first signal (2) and the second signal (3) intersect;
- determining, via the electronic control device, the arithmetic mean of the measurement values (1, 1′, 1″) between the intersection points (4;
- 6;
- 9);
- and
- controlling a mechanical device based on the arithmetic mean.
A non-transitory computer-readable medium containing a computer program that when executed by an electronic control device causes the electronic control device to according to claim 9 is stored
- record time-discrete measurement values (1, 1′, 1″) of the measurement quantity,
- first filter the measurement values (1, 1′, 1″) with a first filter time constant, during which a first signal (2) is obtained;
- second filter the measurement values (1, 1′, 1″) with a second filter time constant, during which a second signal (3) is obtained, the second filter time constant being greater than the first filter time constant;
- determine intersection points (4;
- 6;
- 9), at which the first signal (2) and the second signal (3) intersect;
- determine the arithmetic mean of the measurement values (1, 1′, 1″) between the intersection points (4;
- 6;
- 9);
- and
- control a mechanical device based on the arithmetic mean.
Dependencies are inferred from the claim text.