Electronic oil pump
AssigneeBombardier Recreational Products Inc.
InventorsYvon BEDARD, Benoit PION
Life of this patent
Estimating the term…
Abstract
A method of controlling an engine includes the steps of: applying a current to the electromagnetic coil to move the at least one piston from the fully retracted position toward the full stroke position; sending a signal to an electronic control unit (ECU) when the at least one piston reaches the full stroke position; determining a time taken to reach the full stroke position from the fully retracted position based on the signal; determining a power-on time based on the determined time taken to reach the full stroke position from the fully retracted position; and returning the at least one piston to the fully retracted position by stopping to apply the current to the electromagnetic coil once the power-on time has elapsed.
Claims20
A method of controlling an engine having an electronic oil pump supplying lubricant thereto, the electronic oil pump including at least one lubricant inlet, at least one lubricant outlet, at least one piston, and an actuator operatively connected to the at least one piston, the piston being movable between a fully retracted position and a full stroke position to pump lubricant from the at least one inlet to the at least one outlet, the actuator including an electromagnetic coil, the method comprising:
- applying a current to the electromagnetic coil to move the at least one piston from the fully retracted position toward the full stroke position;
- sending a signal to an electronic control unit (ECU) when the at least one piston reaches the full stroke position;
- determining a time taken to reach the full stroke position from the fully retracted position based on the signal;
- determining a power-on time based on the determined time taken to reach the full stroke position from the fully retracted position;
- and
- returning the at least one piston to the fully retracted position by stopping to apply the current to the electromagnetic coil once the power-on time has elapsed.
A method of controlling an engine having an electronic oil pump supplying lubricant thereto, the electronic oil pump including at least one lubricant inlet, at least one lubricant outlet, at least one piston, and an actuator operatively connected to the at least one piston, the piston being movable between a fully retracted position and a full stroke position to pump lubricant from the at least one inlet to the at least one outlet, the actuator including an electromagnetic coil, the method comprising:
- applying a current to the electromagnetic coil to move the at least one piston from the fully retracted position toward the full stroke position;
- sending a signal to an electronic control unit (ECU) when the at least one piston reaches the full stroke position;
- determining a time taken to reach the full stroke position from the fully retracted position based on the signal;
- continuing to apply the current to the electromagnetic coil when the time taken to reach the full stroke position from the fully retracted position is above a predetermined time;
- and
- stopping to apply the current to the electromagnetic coil when the time taken to reach the full stroke position from the fully retracted position is less than the predetermined time.
A method of controlling an engine having an electronic oil pump supplying lubricant thereto, the electronic oil pump including at least one lubricant inlet, at least one lubricant outlet, at least one piston, and an actuator operatively connected to the at least one piston, the piston being movable between a fully retracted position and a full stroke position to pump lubricant from the at least one inlet to the at least one outlet, the actuator including an electromagnetic coil, the method comprising:
- applying a current to the electromagnetic coil to move the at least one piston from the fully retracted position toward the full stroke position;
- determining if the at least one piston has reached the full stroke position within a predetermined time;
- continuing to apply the current to the electromagnetic coil after the at least one piston has reached the full stroke position if the at least one piston has reached the full stroke position after the predetermined time;
- and
- stopping to apply the current to the electromagnetic coil once the at least one piston has reached the full stroke position if the at least one piston has reached the full stroke position before the predetermined time.
Dependencies are inferred from the claim text.