Control system and method for coordinating throttle and boost
First Claim
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1. A system, comprising:
- a manifold air pressure (MAP) determination module that determines a desired MAP based on a driver torque request;
a boost control module that controls a wastegate of a boost device based on the desired MAP; and
a throttle control module that controls a throttle valve based on the desired MAP, wherein;
the boost control module fully closes the wastegate of the boost device when the desired MAP is less than a first pressure; and
the throttle control module fully opens the throttle valve when the desired MAP is greater than the first pressure.
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Abstract
An engine control system according to the principles of the present disclosure includes a manifold air pressure (MAP) determination module, a boost control module, and a throttle control module. The MAP determination module determines a desired MAP based on a driver torque request. The boost control module controls a boost device based on the desired MAP and a basic boost pressure. The boost device is actuated using boost pressure and the boost pressure is insufficient to actuate the boost device when the boost pressure is less than the basic boost pressure. The throttle control module controls a throttle valve based on the desired MAP and the basic boost pressure.
54 Citations
20 Claims
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1. A system, comprising:
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a manifold air pressure (MAP) determination module that determines a desired MAP based on a driver torque request; a boost control module that controls a wastegate of a boost device based on the desired MAP; and a throttle control module that controls a throttle valve based on the desired MAP, wherein; the boost control module fully closes the wastegate of the boost device when the desired MAP is less than a first pressure; and the throttle control module fully opens the throttle valve when the desired MAP is greater than the first pressure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method, comprising:
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determining a desired manifold air pressure (MAP) based on a driver torque request; controlling a wastegate of a boost device based on the desired MAP; controlling a throttle valve based on the desired MAP; fully closing the wastegate of the boost device when the desired MAP is less than a first pressure; and fully opening the throttle valve when the desired MAP is greater than the first pressure. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification