Control system for throttle valve actuating device
First Claim
1. A control system for a throttle valve actuating device having a throttle valve of an internal combustion engine and actuating means for actuating said throttle valve, said control system comprising:
- identifying means for identifying model parameters of a controlled object model obtained by modeling said throttle valve actuating device, said model parameters including a specific model parameter irrelevant to an input and an output of said controlled object model;
control means for controlling an opening of said throttle valve to a target opening using the model parameters identified by said identifying means; and
abnormality determining means for determining that said throttle valve actuating device is abnormal when the value of the specific model parameter becomes greater than a predetermined value.
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Accused Products
Abstract
A control system for a throttle valve actuating device is disclosed. The throttle valve actuating device has a throttle valve of an internal combustion engine and an actuator for actuating the throttle valve. Model parameters of a controlled object model obtained by modeling the throttle valve actuating device is identified by an identifier. The model parameters includes a specific model parameter irrelevant to an input and an output of the controlled object model. An opening of the throttle valve is controlled to a target opening using the identified model parameters. It is determined that the throttle valve actuating device is abnormal when the value of the specific model parameter becomes greater than a predetermined value.
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Citations
15 Claims
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1. A control system for a throttle valve actuating device having a throttle valve of an internal combustion engine and actuating means for actuating said throttle valve, said control system comprising:
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identifying means for identifying model parameters of a controlled object model obtained by modeling said throttle valve actuating device, said model parameters including a specific model parameter irrelevant to an input and an output of said controlled object model;
control means for controlling an opening of said throttle valve to a target opening using the model parameters identified by said identifying means; and
abnormality determining means for determining that said throttle valve actuating device is abnormal when the value of the specific model parameter becomes greater than a predetermined value. - View Dependent Claims (2, 3, 4, 5)
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6. An abnormality determining method for a throttle valve actuating device having a throttle valve of an internal combustion engine and an actuator for actuating said throttle valve, said abnormality determining method comprising the steps of:
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a) identifying model parameters of a controlled object model obtained by modeling said throttle valve actuating device, said model parameters including a specific model parameter irrelevant to an input and an output of said controlled object model;
b) controlling an opening of said throttle valve to a target opening using the identified model parameters; and
c) determining that said throttle valve actuating device is abnormal when the value of the specific model parameter becomes greater than a predetermined value. - View Dependent Claims (7, 8, 9, 10)
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11. A computer program for causing a computer to carry out an abnormality determining method for a throttle valve actuating device having a throttle valve of an internal combustion engine and an actuator for actuating said throttle valve, said abnormality determining method comprising the steps of:
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a) identifying model parameters of a controlled object model obtained by modeling said throttle valve actuating device, said model parameters including a specific model parameter irrelevant to an input and an output of said controlled object model;
b) controlling an opening of said throttle valve to a target opening using the identified model parameters; and
c) determining that said throttle valve actuating device is abnormal when the value of the specific model parameter becomes greater than a predetermined value. - View Dependent Claims (12, 13, 14, 15)
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Specification