Oil condition sensing methods and systems
AssigneeGM Global Technology Operations LLC
InventorsDavid R. Staley, Bryan K. Pryor, William C. Albertson, Timothy L. Neal, Mike M. McDonald
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Abstract
An engine oil system comprises an oil condition sensing device and a control module. The oil condition sensing device includes an electrically actuated member and is in fluid communication with an engine oil reservoir. The control module selectively causes current to be supplied to the oil condition sensing device to actuate the member, measures the current, determines a parameter of the current, and selectively identifies at least two of an oil level, an oil change event, and an oil viscosity level based on the parameter.
Claims44
An engine oil system comprising:
- an oil condition sensing device that includes an electrically actuated member, wherein the oil condition sensing device is in fluid communication with an engine oil reservoir;
- and
- a control module that selectively causes current to be supplied to the oil condition sensing device to actuate the member, that measures the current, that determines a parameter of the current, and that selectively identifies at least two of an oil level, an oil change event, and an oil viscosity level based on the parameter.
A method comprising:
- selectively causing current to be supplied to an oil condition sensing device to actuate a member of the oil condition sensing device;
- measuring the current supplied to the oil condition sensing device;
- determining a parameter of the current;
- and
- selectively identifying at least two of an oil level, an oil change event, and an oil viscosity level based on the parameter.
Dependencies are inferred from the claim text.