Device for controlling pressure of oil pump in vehicle

Patent metadata

Field	Value
Publication number	US-11255234-B2
Application number	US-201916695924-A
Country	US
Kind code	B2
Filing date	Nov 26, 2019
Priority date	Jul 2, 2019
Publication date	Feb 22, 2022
Grant date	Feb 22, 2022

Abstract

A device for controlling a pressure of an oil pump in a vehicle is provided to. The device includes a sensor that detects an inclination of a vehicle and an oil pump that pumps oil in an oil pan to pressure transfer the oil to an engine of the vehicle. A controller determines an inclination value of the vehicle based on the information from the sensor and adjusts the operating mode of the oil pump to adjust the pressure of the oil supplied to the engine.

First claim

What is claimed is:

1. A device for controlling a pressure of an oil pump in a vehicle, comprising:
a sensor configured to detect an inclination of the vehicle;
an oil pump configured to pump oil in an oil pan to pressure transfer the oil to an engine of the vehicle; and
a controller configured to determine an inclination value of the vehicle based on information received from the sensor and adjust an operating mode of the oil pump to adjust a pressure of the oil supplied to a cylinder block of the engine,
wherein, when the inclination value of the vehicle is less than the reference value, the controller is configured to determine that the inclination of the oil in the oil pan is normal and adjust the pressure of the oil discharged from the oil pump based on a temperature and the pressure of the oil and a revolutions per minute of the engine, detected in real time.

2. The device of claim 1 , wherein, when the inclination value of the vehicle is equal to or greater than a reference value, the controller is configured to determine that the inclination of the oil in the oil pan is abnormal and increase the pressure of the oil discharged from the oil pump to a target value, thereby increasing a flow rate of the oil supplied to the engine.

3. The device of claim 2 , wherein the controller is configured to increase the pressure of the oil supplied to the engine in proportion to the inclination value of the vehicle.

4. The device of claim 2 , wherein, when a real-time pressure of the oil supplied to the engine is already equal to or greater than the target value, the controller is configured to maintain the pressure of the oil supplied to the engine at the real-time pressure.

5. The device of claim 1 , wherein the sensor is any one or two or more selected from among a yaw rate sensor, a steering angle sensor, an inclination sensor, and a gyro sensor.

6. The device of claim 5 , wherein, when the sensor is the yaw rate sensor and a yaw rate value of the vehicle detected using the yaw rate sensor is equal to or greater than a first reference value, the controller is configured to increase the pressure of the oil to increase a flow rate of the oil supplied to the engine.

7. The device of claim 5 , wherein, when the sensor is the steering angle sensor, a steering angle value of the vehicle detected using the steering angle sensor is equal to or greater than a second reference value, and a real-time speed of the vehicle is equal to or greater than a reference speed, the controller is configured to increase the pressure of the oil to increase a flow rate of the oil supplied to the engine.

8. The device of claim 5 , wherein, when the sensor is the inclination sensor and an irradiation angle value of a headlight of the vehicle detected using the inclination sensor is equal to or greater than a third reference value, the controller is configured to increase the pressure of the oil to increase a flow rate of the oil supplied to the engine.

9. The device of claim 5 , wherein, when the sensor is the gyro sensor and an angular velocity value of the vehicle detected using the gyro sensor is equal to or greater than a fourth reference value, the controller is configured to increase the pressure of the oil to increase a flow rate of the oil supplied to the engine.

Assignees

• Hyundai Motor Co Ltd
• Kia Motors Corp

Inventors

• Lee Min Yong
• Kim Seong Sik
• Park Jun Sik

Classifications

• F01M1/16 Primary

  Controlling lubricant pressure or quantity (rendering machines or engines inoperative or idling on lubricant pressure failure F01M1/22) · CPC title

• B60W40/076

  Slope angle of the road · CPC title

• F02B39/14

  Lubrication of pumps; Safety measures therefor · CPC title

• F01M1/20

  concerning lubricant pressure · CPC title

• B60W2540/18

  Steering angle · CPC title