Starting system for internal combustion engine
First Claim
Patent Images
1. An internal combustion engine, comprising:
- a fuel injector for injecting fuel into a combustion chamber to produce an air-fuel mixture in the combustion chamber,a spark plug for igniting the air-fuel mixture to cause combustion in the combustion chamber, anda controller configured to selectively control the spark plug to cause combustion in the combustion chamber of a cylinder having stopped during the expansion stroke when the engine was last stopped to apply a torque to start the engine from a stopped condition,the controller being further configured to selectively determine whether the operation of the engine will be stopped and to selectively adjust an operating condition of the engine so that rotation of the engine is prolonged after combustion has been stopped if the controller determines the engine operation will be stopped.
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Abstract
In one aspect, an internal combustion engine includes a fuel injector for injecting fuel into a combustion chamber to produce an air-fuel mixture in the combustion chamber, a spark plug for igniting the air-fuel mixture to cause combustion in the combustion chamber and a controller controls the spark plug to cause combustion in the combustion chamber to apply a torque to start the engine from a stopped condition. The controller determines whether the operation of the engine will be stopped, and adjusts an operating condition of the engine if the controller determines the engine operation will be stopped.
21 Citations
19 Claims
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1. An internal combustion engine, comprising:
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a fuel injector for injecting fuel into a combustion chamber to produce an air-fuel mixture in the combustion chamber, a spark plug for igniting the air-fuel mixture to cause combustion in the combustion chamber, and a controller configured to selectively control the spark plug to cause combustion in the combustion chamber of a cylinder having stopped during the expansion stroke when the engine was last stopped to apply a torque to start the engine from a stopped condition, the controller being further configured to selectively determine whether the operation of the engine will be stopped and to selectively adjust an operating condition of the engine so that rotation of the engine is prolonged after combustion has been stopped if the controller determines the engine operation will be stopped. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15)
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2. An internal combustion engine comprising:
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a fuel injector for injecting fuel into a combustion chamber to produce an air-fuel mixture in the combustion chamber; a spark plug for igniting the air-fuel mixture to cause combustion in the combustion chamber; and a controller configured to selectively control the spark plug to cause combustion in the combustion chamber to apply a torque to start the engine from a stopped condition, the controller being further configured to selectively determine whether the operation of the engine will be stopped, and to selectively adjust an operating condition of the engine if the controller determines the engine operation will be stopped, and the controller being further configured to selectively increase the rotational speed of the engine to a predetermined rotational speed, if it is determined that the engine operation will be stopped.
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3. An internal combustion engine comprising:
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a fuel injector for injecting fuel into a combustion chamber to produce an air-fuel mixture in the combustion chamber; a spark plug for igniting the air-fuel mixture to cause combustion in the combustion chamber; and a controller configured to selectively control the spark plug to cause combustion in the combustion chamber to apply a torque to start the engine from a stopped condition, the controller being further configured to selectively determine whether the operation of the engine will be stopped, and to selectively adjust an operating condition of the engine if the controller determines the engine operation will be stopped, and the controller being further configured to selectively increase the rotational speed of the engine by a predetermined quantity, if it is determined that the engine operation will be stopped.
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4. An internal combustion engine comprising:
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a fuel injector for injecting fuel into a combustion chamber to produce an air-fuel mixture in the combustion chamber; a spark plug for igniting the air-fuel mixture to cause combustion in the combustion chamber; and a controller configured to selectively control the spark plug to cause combustion in the combustion chamber to apply a torque to start the engine from a stopped condition, the controller being further configured to selectively determine whether the operation of the engine will be stopped, and to selectively adjust an operating condition of the engine if the controller determines the engine operation will be stopped, and the controller being further configured to selectively increase the quantity of intake air to increase the rotational speed of the engine.
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5. An internal combustion engine comprising:
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a fuel injector for injecting fuel into a combustion chamber to produce an air-fuel mixture in the combustion chamber; a spark plug for igniting the air-fuel mixture to cause combustion in the combustion chamber; and a controller configured to selectively control the spark plug to cause combustion in the combustion chamber to apply a torque to start the engine from a stopped condition, the controller being further configured to selectively determine whether the operation of the engine will be stopped, and to selectively adjust an operating condition of the engine if the controller determines the engine operation will be stopped, and the controller being further configured to selectively advance ignition timing to increase the rotational speed of the engine.
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6. An internal combustion engine comprising:
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a fuel injector for injecting fuel into a combustion chamber to produce an air-fuel mixture in the combustion chamber; a spark plug for igniting the air-fuel mixture to cause combustion in the combustion chamber; a controller configured to selectively control the spark plug to cause combustion in the combustion chamber to apply a torque to start the engine from a stopped condition; and a temperature sensor for determining a temperature relating to the engine or relating to a circumstance of the engine, the controller being further configured to selectively determine whether the operation of the engine will be stopped, and to selectively adjust an operating condition of the engine if the controller determines the engine operation will be stopped, and the controller being further configured to selectively adjust the rotational speed of the engine based upon the temperature so determined.
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16. A direct start internal combustion engine, comprising:
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means for injecting fuel directly into the combustion chamber, means for combusting the fuel in the combustion chamber to produce a torque to start the engine from a stopped condition, means for determining whether or not the engine is operating or stopped, and means for increasing rotational speed of the engine, if it is determined that the engine in the operating condition will be stopped.
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17. A method of a starting an internal combustion engine, comprising:
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injecting fuel directly into the combustion chamber, combusting the fuel in the combustion chamber to produce a torque to start the engine from a stopped condition, determining whether the engine in a rotating condition will be stopped, and increasing rotational speed of the engine, if it is determined that the engine will be stopped.
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18. An internal combustion engine controller, comprising:
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a controller for controlling combustion in an internal combustion engine to apply a torque to start the engine from a stopped condition, and wherein the controller selectively determines whether the engine operation will be stopped, and selectively increases the rotational speed of the engine before the engine operation will be stopped if the controller determines that the engine operation will be stopped.
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19. An internal combustion engine, comprising:
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a fuel injector for injecting fuel into a combustion chamber to produce an air-fuel mixture in the combustion chamber, a spark plug for igniting the air-fuel mixture to cause combustion in the combustion chamber, and a controller for controlling the spark plug to cause the combustion in the combustion chamber to apply a torque to start the engine from a stopped condition, and wherein the controller selectively determines whether the engine operation will be stopped, and selectively adjusts the rotational speed of the engine before the engine operation will be stopped if the controller determines the engine operation will be stopped.
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Specification