Method for Adapting the Actual Injection Quantity, Injection Device and Internal Combustion Engine
First Claim
1. A method for regulating fuel injection quantities of an injector of an internal combustion engine, comprising:
- implementing a test cycle including a test injection pulse during a normal fired combustion operating state of the internal combustion engine,detecting a rotational speed signal of the internal combustion engine caused by the test injection pulse,using a processor, determining a crankshaft acceleration based on the detected rotational speed signal caused by the test injection pulse,using the processor, determining an actual injected fuel quantity of the injector based on the determined crankshaft acceleration associated with the test injection pulse, andusing the processor, adjusting actuation data of the injector for subsequent fuel injections based on the determined actual injected fuel quantity.
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Accused Products
Abstract
A method for adapting the actual injection quantity of an injector of an internal combustion engine to the target injection quantity, an injection device for an internal combustion engine, and an internal combustion engine are provided. In the method, the crankshaft acceleration achieved by a test injection pulse is detected in the rotational speed signal of the internal combustion engine and on this basis the injected fuel quantity of the injector is determined. On the basis of the determined injected fuel quantity, the actuating data of the injector of the internal combustion engine is corrected. To this end, the injected fuel quantity of the injector is detected and corrected by a test injection pulse during the normal fired operational state of the internal combustion engine.
21 Citations
19 Claims
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1. A method for regulating fuel injection quantities of an injector of an internal combustion engine, comprising:
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implementing a test cycle including a test injection pulse during a normal fired combustion operating state of the internal combustion engine, detecting a rotational speed signal of the internal combustion engine caused by the test injection pulse, using a processor, determining a crankshaft acceleration based on the detected rotational speed signal caused by the test injection pulse, using the processor, determining an actual injected fuel quantity of the injector based on the determined crankshaft acceleration associated with the test injection pulse, and using the processor, adjusting actuation data of the injector for subsequent fuel injections based on the determined actual injected fuel quantity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An injection device for an internal combustion engine, comprising:
a controller for injection valves of the internal combustion engine, the controller programmed to; implement a test injection pulse during a normal fired combustion operating state of the internal combustion engine, detect a rotational speed signal of the internal combustion engine caused by the test injection pulse, determine a crankshaft acceleration based on the detected rotational speed signal caused by the test injection pulse, determine an actual injected fuel quantity based on the determined crankshaft acceleration associated with the test injection pulse, and adjust actuation data for subsequent fuel injections of at least one of the injection valves based on the determined actual injected fuel quantity. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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13. (canceled)
Specification