Method and device for determining a state of motion of a vehicle comprising an acceleration sensor
First Claim
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1. A method for determining a state of motion of a vehicle based on information relating to only a single axis of only one single axis acceleration sensor, comprising:
- determining a vibration signal representative of vibrations of the vehicle based only on an axial acceleration, wherein the axial acceleration is determined to be an acceleration along an axis oblique to the direction of travel, andwherein the axial acceleration is determined from a measurement signal output by the only one single axis acceleration sensor measuring the single axis;
determining at least one of a predefined upper threshold value and a predefined lower threshold value as a function of at least one of a GPS signal of a GPS module and a speed signal of a speed signal generator;
comparing the vibration signal with the predefined upper threshold value and with the predefined lower threshold value; and
determining whether the vehicle is stationary or whether the vehicle is moving as a function of the comparison of the vibration signal with the predefined upper threshold value and with the predefined lower threshold value,wherein the single axis is oblique to a direction of travel of the vehicle.
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Abstract
To determine a state of motion of a vehicle comprising an acceleration sensor, a vibration signal is determined as a function of a measurement signal of the acceleration sensor. The vibration signal is representative of vibrations of the vehicle. A determination is made as to whether the vehicle is at a standstill or whether the vehicle is moving, such determination made by comparing the vibration signal with at least one pre-determined threshold value.
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Citations
10 Claims
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1. A method for determining a state of motion of a vehicle based on information relating to only a single axis of only one single axis acceleration sensor, comprising:
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determining a vibration signal representative of vibrations of the vehicle based only on an axial acceleration, wherein the axial acceleration is determined to be an acceleration along an axis oblique to the direction of travel, and wherein the axial acceleration is determined from a measurement signal output by the only one single axis acceleration sensor measuring the single axis; determining at least one of a predefined upper threshold value and a predefined lower threshold value as a function of at least one of a GPS signal of a GPS module and a speed signal of a speed signal generator; comparing the vibration signal with the predefined upper threshold value and with the predefined lower threshold value; and determining whether the vehicle is stationary or whether the vehicle is moving as a function of the comparison of the vibration signal with the predefined upper threshold value and with the predefined lower threshold value, wherein the single axis is oblique to a direction of travel of the vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A device for determining a state of motion of a vehicle based on information relating to only a single axis of only one single axis acceleration sensor, the device comprising:
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an input configured to receive acceleration data relating to the single axis from the single acceleration sensor; and a processor configured to; determine a vibration signal that is representative of the vibrations of the vehicle based only on an axial acceleration, wherein the axial acceleration is determined to be an acceleration along an axis oblique to the direction of travel, and wherein the axial acceleration is determined from a measurement signal output by the only one single axis acceleration sensor measuring the single axis; determine at least one of a predefined upper threshold value and a predefined lower threshold value as a function of at least one of a GPS signal of a GPS module and a speed signal of a speed signal generator; and determine, as a function of a comparison of the vibration signal with the predefined upper threshold value and with the predefined lower threshold value, whether the vehicle is stationary or whether the vehicle is moving, wherein the single axis is oblique to a direction of travel of the vehicle.
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Specification