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US 12,749,999 B2Granted
Oil temperature control device and method
AssigneeHyundai Mobis Co., Ltd.
InventorHae Jun Yang
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to oil temperature control device and method of a vehicle including a motor, and more particularly, to oil temperature control device and method for estimating and controlling an oil temperature by using a back electromotive force of a motor.
Claims11
An oil temperature control device comprising:
- a detector including a temperature sensor, and configured to detect state information, which includes a coil temperature of a motor, of a vehicle including the motor;
- a calculator configured to estimate a cooling oil temperature of the motor based on the state information;
- and
- a controller configured to control an oil pump by comparing the detected coil temperature of the motor with the cooling oil temperature estimated by the calculator, and control a rotation speed of the oil pump based on a difference between the detected coil temperature and the cooling oil temperature.
1 more element
A cooling oil temperature control method of a vehicle including a motor, the method comprising:
- (a) receiving, by a controller, state information, which includes a coil temperature of the motor detected by a sensor, of the vehicle including the motor;
- (b) receiving, by the controller, a cooling oil temperature estimated based on the state information;
- and
- (c) controlling, by the controller, an oil pump by comparing the detected coil temperature of the motor with the estimated cooling oil temperature and a rotation speed of the oil pump based on a difference between the detected coil temperature and the cooling oil temperature.
1 more element
Dependencies are inferred from the claim text.