Clipped sensor data estimator
AssigneeSiemens VDO Automotive Corporation
InventorsRobert Andres, Douglas McConnell
Life of this patent
Estimating the term…
Abstract
A method of estimating values beyond sensor limits accurately and simply includes the initial step of determining an actual slope utilizing measured data. An estimated slope is then determined as a percentage of the actual slope to provide an estimation of data values outside of the sensor limits until measured values return to within sensor limits. The estimation method according to this invention increases sensor range without sacrificing resolution with a desired accuracy.
Claims19
A method of estimating values outside of sensor limits comprising the steps of:
- a. determining an actual slope from measured data values within sensor limits;
- b. determining an estimated slope based on the actual slope;
- and
- c. estimating data values outside of the sensor limit based on the estimated slope.
A method of sensing vehicle acceleration comprising the steps of:
- a. measuring vehicle acceleration with a sensor having limits less than an expected upper limit of acceleration values for measurement;
- b. determining an actual slope based on values within the senor limits;
- and
- c. estimating data outside of the sensor limits based on the actual slope.
An occupant restraint system comprising:
- an occupant restraint device;
- a sensor to measure data indicative of vehicle operating conditions, wherein the sensor includes at least one limit beyond which no data is measured;
- and
- a controller to receive signals from the sensor and to determine conditions that require actuation of the occupant restraint device, wherein data indicative of vehicle operating conditions beyond the at least one limit of the sensor are estimated such that the determination of conditions that require actuation of the occupant restraint device can be made beyond the at least one limit of the sensor.
Dependencies are inferred from the claim text.