Redundant device positioning sensing system for a vehicle
First Claim
1. A method comprising:
- connecting first and second sensor resistances to a vehicle device that varies between a minimum position and a maximum position, wherein the minimum position corresponds to a minimum resistance of the first sensor resistance and a maximum resistance of the second sensor resistance, and wherein the maximum position corresponds to a maximum resistance of the first sensor resistance and a minimum resistance of the second sensor resistance;
monotonically increasing a resistance value of the first sensor resistance and monotonically decreasing a resistance value of the second sensor resistance as the vehicle device moves from the minimum position to the maximum position, wherein the maximum resistance of the second sensor resistance is at least 1.5 times the maximum resistance of the first sensor resistance, and wherein a mid-point resistance of the second sensor is at least 1.5 times a mid-point resistance of the first sensor;
determining first and second measured positions of the vehicle device based on the resistance values of the first and second sensor resistances, respectively; and
controlling a vehicle system based on the first and second measured positions.
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Abstract
A redundant position sensing system includes a device having a position between minimum and maximum positions. First and second sensor modules include first and second sensor resistances. A value of one of the first or second sensor resistances increases and a value of the other of the first or second resistances decreases when the device moves from the minimum position to the maximum position. A maximum value of the first sensor resistance ranges between a first maximum value and a second maximum value that is greater than the first maximum value due to a first manufacturing tolerance. A maximum value of the second sensor resistance ranges between a third maximum value and a fourth maximum value that is greater than the third maximum value due to a second manufacturing tolerance. The second maximum value is less than the third maximum value.
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Citations
12 Claims
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1. A method comprising:
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connecting first and second sensor resistances to a vehicle device that varies between a minimum position and a maximum position, wherein the minimum position corresponds to a minimum resistance of the first sensor resistance and a maximum resistance of the second sensor resistance, and wherein the maximum position corresponds to a maximum resistance of the first sensor resistance and a minimum resistance of the second sensor resistance; monotonically increasing a resistance value of the first sensor resistance and monotonically decreasing a resistance value of the second sensor resistance as the vehicle device moves from the minimum position to the maximum position, wherein the maximum resistance of the second sensor resistance is at least 1.5 times the maximum resistance of the first sensor resistance, and wherein a mid-point resistance of the second sensor is at least 1.5 times a mid-point resistance of the first sensor; determining first and second measured positions of the vehicle device based on the resistance values of the first and second sensor resistances, respectively; and controlling a vehicle system based on the first and second measured positions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification