AUTOMOBILE CONNECTOR APPARATUS FOR USE WITH AN ELECTRONIC ANALYZER
First Claim
1. In combination with an electronic analyzer and an internal combustion engine of an automobile including an ignition coil having a primary winding and a secondary winding, a battery, a first battery cable electrically coupled between a first terminal of the battery and the ignition coil, a second battery cable electrically coupled between a second terminal of the battery and the frame of the automobile, and a plurality of spark plugs;
- apparatus comprising;
a first multiple connector installed in the automobile and including a plurality of first conductor terminals;
a second multiple connector including a plurality of second conductor terminals conductively coupled to the electronic analyzer and arranged for mating with said first terminals;
first conductive means connecting the primary winding to a first one of said first conductor terminals;
second conductive means connecting the battery first terminal to a second one of said first conductor terminals;
first sensor means coupled to the secondary winding;
third conductive means connecting said first sensor means to a third one of said first conductor terminals;
second sensor means coupled to a one of the spark plugs;
fourth conductive means connecting said first sensor means to a fourth one of said first conductor terminals;
fifth conductive means connecting one of the battery cables at a first reference position to a fifth one of said first conductor terminals; and
sixth conductive means connecting said one battery cable at a second reference position to a sixth one of said first conductor terminals.
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Accused Products
Abstract
Connector and sensor apparatus permanently installed at probe pickup locations in an automobile'"'"''"'"'s electrical system, for connection to an electronic analyzer. A current probe included by the apparatus involves the determination of a length of a battery ground cable relating voltage difference across the determined length to current passing through the cable in a calibrated manner, and connecting the determined length to the analyzer for measuring voltage difference thereacross.
13 Citations
9 Claims
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1. In combination with an electronic analyzer and an internal combustion engine of an automobile including an ignition coil having a primary winding and a secondary winding, a battery, a first battery cable electrically coupled between a first terminal of the battery and the ignition coil, a second battery cable electrically coupled between a second terminal of the battery and the frame of the automobile, and a plurality of spark plugs;
- apparatus comprising;
a first multiple connector installed in the automobile and including a plurality of first conductor terminals;
a second multiple connector including a plurality of second conductor terminals conductively coupled to the electronic analyzer and arranged for mating with said first terminals;
first conductive means connecting the primary winding to a first one of said first conductor terminals;
second conductive means connecting the battery first terminal to a second one of said first conductor terminals;
first sensor means coupled to the secondary winding;
third conductive means connecting said first sensor means to a third one of said first conductor terminals;
second sensor means coupled to a one of the spark plugs;
fourth conductive means connecting said first sensor means to a fourth one of said first conductor terminals;
fifth conductive means connecting one of the battery cables at a first reference position to a fifth one of said first conductor terminals; and
sixth conductive means connecting said one battery cable at a second reference position to a sixth one of said first conductor terminals.
- apparatus comprising;
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2. The apparatus according to claim 1 wherein said first sensor means includes capacitive sensor means.
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3. The apparatus according to claim 1 wherein said second sensor means includes electromagnetic sensor means.
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4. The apparatus according to claim 19, the engine'"'"''"'"'s electrical system including a distributor and an insulated conductive wire electrically connecting the secondary winding to the distributor, wherein said first sensor means includes capacitive divider circuit means comprising a conductive sleeve about the insulated conductive wire and electrically connected to said third conductive means, and a capacitor having a first plate connected to said third conductive means and a second plate connected to ground.
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5. The apparatus according to claim 19, the engine'"'"''"'"'s electrical system including a distributor and an insulated conductive wire for electrically coupling the distributor to said one spark plug, wherein said second sensor means includes electromagnetic circuit means comprising a magnetically permeable toroid about the insulated cOnductive wire, and an inductive winding about said toroid, said winding having a first end conductively coupled to said fourth conductive means and a second end connected to ground.
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6. The apparatus according to claim 19 wherein said one of the battery cables is a battery ground cable.
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7. The apparatus according to claim 19 wherein said second reference position is separated from said first reference position by a predetermined length of said one battery cable.
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8. In combination with an electronic analyzer and an internal combustion engine of an automobile including an ignition coil having a primary winding and a secondary winding, a battery, means defining a first conductive path between a first terminal of the battery and the ignition coil, means defining a second conductive path between a second terminal of the battery and the frame of the automobile, and a plurality of spark plugs;
- apparatus comprising;
a first multiple connector permanently installed in the automobile and including a plurality of terminals;
a second multiple connector including a plurality of terminals conductively coupled to the electronic analyzer and arranged for mating with said terminals of said first multiple connector;
a plurality of pickup probes permanently installed in the engine'"'"''"'"'s electrical system, said pickup probes coupling the primary winding, the secondary winding, the battery first terminal, one of the spark plugs and two locations along the path defined by one of said means to respective ones of said terminals of of said first multiple connector.
- apparatus comprising;
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9. The apparatus according to claim 20 wherein a battery ground cable is included within said one of said conductive paths.
Specification