System and method for engine ignition coil identification
AssigneeCaterpillar Inc.
InventorJames J. Cress
Life of this patent
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Abstract
An ignition system for an internal combustion engine includes an ignition coil forming a part of a primary circuit and a secondary circuit, a power source to supply power to the ignition coil, and a controller to determine whether the ignition coil is a recognized ignition coil based on a measured risetime and a measured current level in the primary circuit, the measured current level being lower than that required to create a breakdown voltage of the ignition coil.
Claims20
An ignition system for an internal combustion engine, comprising:
- an ignition coil forming a part of a primary circuit and a secondary circuit;
- a power source configured to supply power to the ignition coil;
- and
- a controller configured to determine whether the ignition coil is a recognized ignition coil based on a measured risetime and a measured current level in the primary circuit, the measured current level being lower than that required to create a breakdown voltage of the ignition coil.
A method of operating an ignition system for an internal combustion engine, comprising:
- providing power to an ignition coil forming a part of a primary circuit and a secondary circuit;
- measuring a risetime in the primary circuit to a predetermined current level;
- determining whether the ignition coil is a recognized ignition coil based on the measured risetime;
- and
- operating the internal combustion engine with a breakdown voltage risetime corresponding to the recognized ignition coil, if the ignition coil is recognized.
A non-transitory machine-readable medium storing instructions that, when executed by a controller of an internal combustion engine system, causes the engine system to perform a method for operating an ignition system for an internal combustion engine, the method comprising:
- providing power to an ignition coil forming a part of a primary circuit and a secondary circuit;
- measuring a risetime in the primary circuit to a predetermined current level;
- determining whether the ignition coil is a recognized ignition coil based on the measured risetime;
- and
- operating the internal combustion according to a breakdown voltage risetime corresponding to the recognized ignition coil, if the ignition coil is recognized.
Dependencies are inferred from the claim text.