Method and arrangement for controlling an internal combustion engine
First Claim
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1. A method for controlling an internal combustion engine of a motor vehicle wherein the engine is equipped with a throttle flap adjustable to a setting by an operator of the vehicle for adjusting air flowing through an intake pipe to the engine, the method comprising the steps of:
- providing a control unit for electrically actuating said throttle flap in dependence upon a command of the operator;
detecting the air flowing to the engine and supplying a signal indicative of the air mass;
evaluating said signal to detect a backflow of said air in said intake pipe; and
,moving said throttle flap from and independently of said setting to close said throttle flap when said backflow occurs thereby preventing said backflow.
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Abstract
The invention is directed to a method and an arrangement for controlling an internal combustion engine wherein the air flow to the engine is influenced at least in component ranges and in a selectable time reference to operations in the engine.
7 Citations
10 Claims
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1. A method for controlling an internal combustion engine of a motor vehicle wherein the engine is equipped with a throttle flap adjustable to a setting by an operator of the vehicle for adjusting air flowing through an intake pipe to the engine, the method comprising the steps of:
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providing a control unit for electrically actuating said throttle flap in dependence upon a command of the operator; detecting the air flowing to the engine and supplying a signal indicative of the air mass; evaluating said signal to detect a backflow of said air in said intake pipe; and
,moving said throttle flap from and independently of said setting to close said throttle flap when said backflow occurs thereby preventing said backflow. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An arrangement for controlling an internal combustion engine of a motor vehicle wherein the engine is equipped with a throttle flap adjustable to a setting by an operator of the vehicle for adjusting air flowing through an intake pipe to the engine, the arrangement comprising:
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control means for electrically actuating said throttle flap in dependence upon a command of the operator; detecting means for detecting the air flowing to the engine and supplying a signal indicative of the air mass; said control means including means for evaluating said signal to detect a backflow of said air in said intake pipe; and
,said control means including means for moving said throttle flap from and independently of said setting to close said throttle flap when said backflow occurs thereby preventing said backflow. - View Dependent Claims (10)
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Specification