Method and apparatus for determining a value of a zero point offset of a yaw rate sensor
AssigneePenny & Giles Controls Limited
InventorJason Lewis
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Abstract
There is described a method for determining a value of a zero point offset of a yaw rate sensor. The method comprises measuring over time the output of the yaw rate sensor, determining whether the measured output has remained within a set of limits for a pre-determined period and if it is determined that the measured output has remained within the limits for the pre-determined period, using at least one measured value of the output to determine the value of the zero point offset.
Claims33
A method for determining a value of a zero point offset of a yaw rate sensor, the method comprising:
- measuring over time the output of the yaw rate sensor, determining whether the measured output has remained within a set of limits for a pre-determined period and if it is determined that the measured output has remained within the limits for the pre-determined period, using at least one measured value of the output to determine the value of the zero point offset.
A method of operating a vehicle comprising a control system comprising a yaw rate sensor, in which method the control system measures the output of the yaw rate sensor when the vehicle is at rest, tests the measured output in accordance with test criteria to determine if the measured output is reliable, and in response to determining that the measured output is reliable uses the measured output to determine a value for a zero point offset of the yaw and inhibits the vehicle from being operational until after it has determined the value for the zero point offset.
Dependencies are inferred from the claim text.