Vehicle occupant sensing system
First Claim
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1. A vehicle occupancy sensing system comprising:
- a first electrode connection and a second electrode connection;
a circuit parameter sensor connected with the first electrode connection and the second electrode connection; and
a controller coupled to the circuit parameter sensor, the controller operable to obtain a first parameter reading for the first electrode connection and a second parameter reading for the second electrode connection, and operable to determine an occupancy characteristic based on a product of load impacts determined based on the first and second parameter readings with respect to a first unloaded electrode connection reading and a second unloaded electrode connection reading.
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Abstract
A vehicle occupancy sensing system provides a mechanism for determining whether a child is present in a vehicle. The sensing system may determine that an occupied front or rear facing child seat is present in an automobile, for example. To that end, the sensing system may employ a reliable electrode sensing system that may be conveniently installed in one or more locations in the vehicle seats. The sensing system thereby helps reduce occurrences of the potentially devastating consequences of unintentionally leaving a child in a vehicle.
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Citations
56 Claims
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1. A vehicle occupancy sensing system comprising:
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a first electrode connection and a second electrode connection; a circuit parameter sensor connected with the first electrode connection and the second electrode connection; and a controller coupled to the circuit parameter sensor, the controller operable to obtain a first parameter reading for the first electrode connection and a second parameter reading for the second electrode connection, and operable to determine an occupancy characteristic based on a product of load impacts determined based on the first and second parameter readings with respect to a first unloaded electrode connection reading and a second unloaded electrode connection reading. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A method for sensing vehicle occupancy comprising the acts of:
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sensing a first parameter associated with a first electrode connection; sensing a second parameter associated with a second electrode connection; and determining a product of load impacts determined based on the first and second parameters with respect to a first unloaded electrode connection reading and a second unloaded electrode connection reading. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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43. A machine readable medium encoded with instructions that cause a vehicle electronics system to perform a method comprising the acts of:
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sensing a first parameter associated with a first electrode connection; sensing a second parameter associated with a second electrode connection; and determining a product of load impacts determined based on the first and second parameters with respect to a first unloaded electrode connection reading and a second unloaded electrode connection reading. - View Dependent Claims (44, 45, 46, 47, 48, 49, 50)
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51. A vehicle occupancy sensing system comprising:
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a first electrode in a seat back; a second electrode in the seat back; a circuit parameter sensor connected with the first and second electrodes; and a controller coupled to the circuit parameter sensor, the controller operable to obtain a first parameter reading for the first electrode and a second parameter reading for the second electrode, and operable to determine an occupancy characteristic based on a product of load impacts based on the first and second parameter readings with respect to a first unloaded electrode connection reading and a second unloaded electrode connection reading. - View Dependent Claims (52, 53, 54, 55, 56)
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Specification