Method and system for controlling hybrid vehicle

Patent metadata

Field	Value
Publication number	US-2016368476-A1
Application number	US-201514924982-A
Country	US
Kind code	A1
Filing date	Oct 28, 2015
Priority date	Jun 17, 2015
Publication date	Dec 22, 2016
Grant date	—

Abstract

A method and system for controlling a hybrid vehicle equipped with an air control valve are provided. The method includes collecting road information and determining a number of conversions between an engine operation mode and a motor driving mode based on the collected road information. Further, a degree of flap closing of the air control valve is restricted from being corrected when the predicted number of conversion is less than a predetermined threshold. The air control valve is adjusted for flap displacement upon closing of the flap when the predicted number of conversion is greater than the predetermined threshold and in which the degree of flap closing of the air control valve is corrected based on the detected flap displacement.

First claim

What is claimed is:

1 . A method for controlling a hybrid vehicle equipped with an air control valve, comprising:
collecting, by a controller, road information of a road on which the vehicle is traveling; determining, by the controller, a number of conversions between an engine operation mode and a motor driving mode based on the collected road information; restricting, by the controller, a correction of a degree of flap closing of the air control valve when the predicted number of conversions is less than a predetermined threshold; and adjusting, by the controller, the air control valve for flap displacement upon closing of the flap when the predicted number of conversions is greater than the predetermined threshold, wherein the degree of flap closing of the air control valve is corrected based on the detected flap displacement.

2 . The method of claim 1 , wherein the road information is received by a navigation system installed within the vehicle.

3 . The method of claim 1 , wherein the road information includes information regarding speed limits for the road on which the vehicle is traveling, and the number of mode conversions is predicted based on the received information regarding speed limit, and a vehicle driving mode predetermined by speed

4 . The method of claim 1 , wherein the road information includes information regarding speed limits for the road on which the vehicle is traveling, and the number of mode conversions is predicted based on the received information regarding speed limit, and a vehicle driving mode predetermined by speed.

5 . The method of claim 1 , wherein the number of mode conversions is predicted to be a possible number within a predetermined distance from the vehicle.

6 . The method of claim 1 , wherein the adjustment process is executed when the engine is turned off.

7 . The method of claim 1 , wherein the adjustment process includes adjusting, by the controller, a degree of flap closing when the degree of flap closing fluctuates beyond a threshold preset from a predetermined normal value when the air control valve is closed.

8 . A system for controlling a hybrid vehicle equipped with an air control valve, comprising:
a memory configured to store program instructions; and a processor configured to execute the program instructions, the program instructions when executed configured to:
collect road information of a road on which the vehicle is traveling;
determine a number of conversions between an engine operation mode and a motor driving mode based on the collected road information;
restrict a correction of a degree of flap closing of the air control valve when the predicted number of conversions is less than a predetermined threshold; and
correct the air control valve for flap displacement upon closing of the flap when the predicted number of conversions is greater than the predetermined threshold, wherein the degree of flap closing of the air control valve is corrected based on the detected flap displacement.

9 . The system of claim 8 , wherein the road information is received by a navigation system installed within the vehicle.

10 . The system of claim 8 , wherein the road information includes information regarding speed limits for the road on which the vehicle is traveling, and the number of mode conversions is predicted based on the received information regarding speed limit, and a vehicle driving mode predetermined by speed

11 . The system of claim 8 , wherein the road information includes information regarding speed limits for the road on which the vehicle is traveling, and the number of mode conversions is predicted based on the received information regarding speed limit, and a vehicle driving mode predetermined by speed

12 . The system of claim 8 , wherein the number of mode conversions is predicted to be a possible number within a predetermined distance from the vehicle.

13 . The system of claim 8 , wherein the correction process is executed when the engine is turned off.

14 . The system of claim 8 , wherein the program instructions that adjust the air control valve when executed are further configured to:
adjust a degree of flap closing when the degree of flap closing fluctuates beyond a threshold preset from a predetermined normal value when the air control valve is closed.

Assignees

• Hyundai Motor Co Ltd

Inventors

• Jang Hwa Yong

Classifications

• B60W2555/60

  Traffic rules, e.g. speed limits or right of way · CPC title

• B60W2554/00

  Input parameters relating to objects · CPC title

• B60W2552/00

  Input parameters relating to infrastructure · CPC title

• B60W2556/50

  of positioning data, e.g. GPS [Global Positioning System] data · CPC title

• B60W2552/20

  Road profile, i.e. the change in elevation or curvature of a plurality of continuous road segments · CPC title