Redundant position sensing system for a vehicle
First Claim
1. A redundant position sensing system, comprising:
- a device having a position between minimum and maximum positions; and
first and second sensor modules that include first and second sensor resistances, respectively, wherein a value of one of said first or second sensor resistances increases and a value of the other of said first or second resistances decreases when said device moves from said minimum position to said maximum position;
wherein a maximum value of said first sensor resistance ranges between a first maximum value and a second maximum value that is greater than said first maximum value due to a first manufacturing tolerance, wherein a maximum value of said second sensor resistance ranges between a third maximum value and a fourth maximum value that is greater than said third maximum value due to a second manufacturing tolerance, and wherein said second maximum value is less than said third maximum value.
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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
34 Claims
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1. A redundant position sensing system, comprising:
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a device having a position between minimum and maximum positions; and
first and second sensor modules that include first and second sensor resistances, respectively, wherein a value of one of said first or second sensor resistances increases and a value of the other of said first or second resistances decreases when said device moves from said minimum position to said maximum position;
wherein a maximum value of said first sensor resistance ranges between a first maximum value and a second maximum value that is greater than said first maximum value due to a first manufacturing tolerance, wherein a maximum value of said second sensor resistance ranges between a third maximum value and a fourth maximum value that is greater than said third maximum value due to a second manufacturing tolerance, and wherein said second maximum value is less than said third maximum value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A redundant position sensing system for a vehicle, comprising:
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a vehicle device having a position between minimum and maximum positions, wherein said vehicle device is one of an accelerator pedal, a brake pedal, a clutch pedal, or a throttle blade of a vehicle; and
first and second sensor modules that include first and second sensor resistances, respectively, wherein a value of one of said first or second sensor resistances increases and a value of the other of said first or second resistances decreases when said device moves from said minimum position to said maximum position;
wherein a ratio of a maximum value of said first sensor resistance to a maximum value of said second sensor resistance is less than or equal to 0.5.
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18. A method for operating a redundant position sensing system, comprising:
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connecting first and second sensor modules to a device having a position between minimum and maximum positions, wherein said first and second sensor modules include first and second sensor resistances, respectively;
increasing a value of one of said first or second sensor resistances when said device moves from said minimum position to said maximum position; and
decreasing a value of the other of said first or second sensor resistances when said device moves from said minimum position to said maximum position, wherein a maximum value of said first sensor resistance ranges between a first maximum value and a second maximum value that is greater than said first maximum value due to a first manufacturing tolerance, wherein a maximum value of said second sensor resistance ranges between a third maximum value and a fourth maximum value that is greater than said third maximum value due to a second manufacturing tolerance, and wherein said second maximum value is less than said third maximum value. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A method for operating a redundant position sensing system for a vehicle, comprising:
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connecting first and second sensor modules to a vehicle device having a position between minimum and maximum positions, wherein said first and second sensor modules include first and second sensor resistances, respectively, and wherein said vehicle device is one of an accelerator pedal, a brake pedal, a clutch pedal, or a throttle blade of a vehicle;
increasing a value of one of said first or second sensor resistances when said device moves from said minimum position to said maximum position; and
decreasing a value of the other of said first or second sensor resistances when said device moves from said minimum position to said maximum position, wherein a ratio of a maximum value of said first sensor resistance to a maximum value of said second sensor resistance is less than or equal to 0.5.
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Specification