MAGNETIC SENSING SYSTEM AND METHOD
First Claim
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1. A method of sensing a magnetic condition of a door of a vehicle, comprising:
- a. locating at least one first coil at at least one first location in magnetic communication with a first door of the vehicle;
b. applying at least one first time-varying signal to said at least one first coil;
c. generating at least one first magnetic field with said at least one first coil responsive to said at least one first time-varying signal, wherein at least a portion of said at least one first magnetic field is in magnetic communication with said first door, said at least one first location and said at least one first coil are adapted so that said at least one first magnetic field is influenced by an opening state of said first door, and said at least one first location and said at least one first coil are adapted so that said at least one first magnetic field is influenced by a crash involving said first door; and
d. generating at least one first signal from said at least one first coil responsive to said at least one first time-varying electrical signal and responsive to at least said at least one first magnetic field, wherein said at least one first signal provides for sensing an opening state of said first door, and said at least one first signal provides for sensing a crash involving said first door.
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Abstract
A coil at a first location in magnetic communication with a door of a vehicle generates a magnetic field responsive to a time varying signal applied thereto. The first location and the coil are adapted so that the magnetic field is influenced by an opening state of the door, and by a crash involving the door. A signal is generated from the coil responsive to the time-varying signal and to the magnetic field, wherein the signal provides for sensing an opening state of the door and for sensing a crash involving the door.
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Citations
21 Claims
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1. A method of sensing a magnetic condition of a door of a vehicle, comprising:
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a. locating at least one first coil at at least one first location in magnetic communication with a first door of the vehicle;
b. applying at least one first time-varying signal to said at least one first coil;
c. generating at least one first magnetic field with said at least one first coil responsive to said at least one first time-varying signal, wherein at least a portion of said at least one first magnetic field is in magnetic communication with said first door, said at least one first location and said at least one first coil are adapted so that said at least one first magnetic field is influenced by an opening state of said first door, and said at least one first location and said at least one first coil are adapted so that said at least one first magnetic field is influenced by a crash involving said first door; and
d. generating at least one first signal from said at least one first coil responsive to said at least one first time-varying electrical signal and responsive to at least said at least one first magnetic field, wherein said at least one first signal provides for sensing an opening state of said first door, and said at least one first signal provides for sensing a crash involving said first door. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification