Method of controlling electric oil pump for vehicle
AssigneesHyundai Motor Company, Kia Corporation
InventorsJae Hyeon Lee, Jae Woo Shim, Ji Wan Cha
Life of this patent
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Abstract
A method of controlling an electric oil pump configured for a vehicle, may include a step of determining whether a vehicle has entered a sloped road, a step of determining whether a drive motor of the vehicle is in one or more overheatable conditions when it is determined that the vehicle has entered a sloped road, a step of determining whether the overheatable condition is maintained over a preset reference time when it is determined that the vehicle is in the over-heatable condition; and a step of supplying a pulse to an RPM input for the electric oil pump when it is determined that the duration of the over-heatable condition exceeds the preset reference time.
Claims20
A method of controlling an electric oil pump of a vehicle, the method comprising:
- determining, by a controller, whether the vehicle has entered a sloped road;
- determining, by the controller, whether a drive motor of the vehicle is in at least one overheatable condition upon determining that the vehicle has entered the sloped road;
- determining, by the controller, whether the at least one overheatable condition is maintained over a preset reference time upon determining that the vehicle is in the at least one overheatable condition;
- and
- supplying, by the controller, a pulse to an input of a revolutions per minute (RPM) in the electric oil pump upon determining that a duration of the at least one overheatable condition exceeds the preset reference time.
An oil cooling system for a vehicle, the oil cooling system comprising:
- a drive motor fiducially-connected to a heat exchanger;
- an oil pump fiducially-connected to the heat exchanger;
- a drive motor temperature sensor configured for measuring a temperature of the drive motor,
- an oil temperature sensor configured for measuring a temperature of oil in the oil cooling system;
- and
- a controller electrically connected to the drive motor, the oil pump, the drive motor temperature sensor and the oil temperature sensor,
- wherein the controller is configured for determining whether the vehicle has entered a sloped road,
- wherein the controller is configured for determining whether the drive motor of the vehicle is in at least one overheatable condition upon determining that the vehicle has entered the sloped road,
- wherein the controller is configured for determining whether the at least one overheatable condition is maintained over a preset reference time upon determining that the vehicle is in the at least one overheatable condition, and
- wherein the controller is configured for supplying a pulse to an input of a revolutions per minute (RPM) in the oil pump upon determining that a duration of the at least one overheatable condition exceeds the preset reference time.
Dependencies are inferred from the claim text.