Method and apparatus for controlling an internal combustion engine
First Claim
1. A method for operating an internal combustion engine comprising the steps of:
- determining a value equal to predicted current air mass flow inducted into said engine;
determining a value equal to predicted peak air mass flow capable of being inducted into said engine; and
determining a value of a ratio of predicted current air mass flow inducted into said engine to predicted peak air mass flow capable of being inducted into said engine based on said value of predicted current air mass flow inducted into said engine and said value of predicted peak air mass flow capable of being inducted into said engine.
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0 Petitions
Accused Products
Abstract
A mass airflow based control system is provided for an internal combustion engine including a throttle body and an air bypass valve. The system comprises a processor for determining a first value equal to predicted air charge inducted into the engine through the throttle valve, and includes memory for storing an initial value of a ratio of predicted current air charge inducted into the engine to predicted peak air charge capable of being inducted into the engine. The processor determines a second value equal to predicted air charge inducted into the engine through the air bypass valve based on the initial value, and determines a third value equal to predicted peak air charge capable of being inducted into the engine. The processor further determines an actual value of the ratio of predicted current air charge inducted into the engine to predicted peak air charge capable of being inducted into the engine based on the first, second and third values.
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Citations
22 Claims
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1. A method for operating an internal combustion engine comprising the steps of:
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determining a value equal to predicted current air mass flow inducted into said engine; determining a value equal to predicted peak air mass flow capable of being inducted into said engine; and determining a value of a ratio of predicted current air mass flow inducted into said engine to predicted peak air mass flow capable of being inducted into said engine based on said value of predicted current air mass flow inducted into said engine and said value of predicted peak air mass flow capable of being inducted into said engine.
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2. A method for operating an internal combustion engine including a throttle valve and an air bypass valve, said method comprising the steps of:
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storing an initial value of a ratio of predicted current air mass flow inducted into said engine to predicted peak air mass flow capable of being inducted into said engine; determining a first value equal to predicted air mass flow inducted into said engine through said throttle valve; determining a second value equal to predicted air mass flow inducted into said engine through said air bypass valve based on said initial value; determining a third value equal to predicted peak air mass flow capable of being inducted into said engine; and determining an actual value of said ratio of predicted current air mass flow inducted into said engine to predicted peak air mass flow capable of being inducted into said engine based on said first, second and third values. - View Dependent Claims (3, 4, 5)
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6. A method for operating an internal combustion engine including a throttle valve, and an air bypass valve, said method comprising the steps of:
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storing an initial value of a ratio of predicted current air mass flow inducted into said engine to predicted peak air mass flow capable of being inducted into said engine; storing first predetermined data comprising predicted air mass flow inducted into said engine via said throttle valve; storing second predetermined data comprising predicted air mass flow inducted into said engine via said air bypass valve;
storing third predetermined data comprising predicted peak air mass flow capable of being inducted into said engine;determining a first value equal to predicted air mass flow inducted into said engine through said throttle valve from said first predetermined data; determining a second value equal to predicted air mass flow inducted into the engine through the air bypass valve from said second predetermined data and based on said initial value; determining a third value equal to predicted peak air mass flow capable of being inducted into said engine from said third predetermined data; and determining an actual value of said ratio of predicted current air mass flow inducted into said engine to predicted peak air mass flow capable of being inducted into said engine by adding said first value to said second value to determine a fourth value, and comparing said fourth value to said third value. - View Dependent Claims (7)
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8. A method for operating an internal combustion engine comprising the steps of:
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determining a value equal to predicted current air charge inducted into said engine; determining a value equal to predicted peak air charge capable of being inducted into said engine; and determining a value of a ratio of predicted current air charge inducted into said engine to predicted peak air charge capable of being inducted into said engine based on said value of predicted current air charge inducted into said engine and said value of predicted peak air charge capable of being inducted into said engine.
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9. A method for operating an internal combustion engine including a throttle valve and an air bypass valve, said method comprising the steps of:
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storing an initial value of a ratio of predicted current air charge inducted into said engine to predicted peak air charge capable of being inducted into said engine; determining a first value equal to predicted air charge inducted into said engine through said throttle valve; determining a second value equal to predicted air charge inducted into said engine through said air bypass valve based on said initial value; determining a third value equal to predicted peak air charge capable of being inducted into said engine; and determining an actual value of said ratio of predicted current air charge inducted into said engine to predicted peak air charge capable of being inducted into said engine based on said first, second and third values. - View Dependent Claims (10, 11, 12)
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13. A method for operating an internal combustion engine including a throttle valve, and an air bypass valve, said method comprising the steps of:
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storing an initial value of a ratio of predicted current air charge inducted into said engine to predicted peak air charge capable of being inducted into said engine; storing first predetermined data comprising predicted air charge inducted into said engine via said throttle valve; storing second predetermined data comprising predicted air charge inducted into said engine via said air bypass valve; and storing third predetermined data comprising predicted peak air charge capable of being inducted into said engine; deriving a first value equal to predicted air charge inducted into said engine through said throttle valve from said first predetermined data; deriving a second value equal to predicted air charge inducted into the engine through the air bypass valve from said second predetermined data and based on said initial value; deriving a third a value equal to predicted peak air charge capable of being inducted into said engine from said third predetermined data; and determining an actual value of said ratio of predicted current air charge inducted into said engine to predicted peak air charge capable of being inducted into said engine by adding said first value to said second value to determine a fourth value and comparing said fourth value to said third value. - View Dependent Claims (14)
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15. A system for operating an internal combustion engine including a throttle body and an air bypass valve, said system comprising:
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processor means for determining a first value equal to predicted air mass flow inducted into said engine through said throttle valve, and including memory means for storing an initial value of a ratio of predicted current air mass flow inducted into said engine to predicted peak air mass flow capable of being inducted into said engine; said processor means determining a second value equal to predicted air mass flow inducted into said engine through the air bypass valve based on said initial value, and determining a third value equal to predicted peak air mass flow capable of being inducted into said engine; and said processor means determining an actual value of said ratio of predicted current air mass flow inducted into said engine to predicted peak air mass flow capable of being inducted into said engine based on said first, second and third values. - View Dependent Claims (16, 17, 18)
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19. A system for operating an internal combustion engine including a throttle body and an air bypass valve, said system comprising:
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processor means for determining a first value equal to predicted air charge inducted into said engine through said throttle valve, and including memory means for storing an initial value of a ratio of predicted current air charge inducted into said engine to predicted peak air charge capable of being inducted into said engine; said processor means determining a second value equal to predicted air charge inducted into said engine through the air bypass valve based on said initial value, and determining a third value equal to predicted peak air charge inducted into said engine; and said processor means determining an actual value of said ratio of predicted current air charge inducted into said engine to predicted peak air charge capable of being inducted into said engine based on said first, second and third values. - View Dependent Claims (20, 21, 22)
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Specification