Method and System for Fuel Injector Identification and Simulation
First Claim
Patent Images
1. A fuel injector simulator, comprising:
- a fuel injector monitor in communication with an engine fuel injector; and
,a pseudo fuel injector element in communication with an onboard diagnostic component and configured to present an expected fuel injector resistance value to the onboard diagnostic component, the onboard diagnostic component thereby configured to perceive the pseudo injector element as a fuel injector;
wherein the fuel injector monitor is configured to monitor the engine fuel injector for a fault condition and communicate the fault condition to the pseudo fuel injector element; and
,wherein the pseudo fuel injector element is configured to simulate a fuel injector fault to the onboard diagnostic component in response to a detected fault condition communicated to the fuel injector simulator by the fuel injector monitor.
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Abstract
A fuel injector simulator comprises a monitor in communication with an engine fuel injector. A pseudo fuel injector communicates with an onboard diagnostic component to present an expected fuel injector resistance value. The pseudo fuel injector determines the expected fuel injector resistance value and adjusts an adjustable output circuit to present the expected fuel injector resistance value to the onboard diagnostic component. The engine fuel injector is monitored for a fault condition. The pseudo fuel injector simulates a fuel injector fault to the onboard diagnostic component in response to a detected fault condition.
12 Citations
8 Claims
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1. A fuel injector simulator, comprising:
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a fuel injector monitor in communication with an engine fuel injector; and
,a pseudo fuel injector element in communication with an onboard diagnostic component and configured to present an expected fuel injector resistance value to the onboard diagnostic component, the onboard diagnostic component thereby configured to perceive the pseudo injector element as a fuel injector; wherein the fuel injector monitor is configured to monitor the engine fuel injector for a fault condition and communicate the fault condition to the pseudo fuel injector element; and
,wherein the pseudo fuel injector element is configured to simulate a fuel injector fault to the onboard diagnostic component in response to a detected fault condition communicated to the fuel injector simulator by the fuel injector monitor. - View Dependent Claims (2, 3, 4)
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5. A method, comprising the steps of:
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monitoring an engine fuel injector for a fault condition; presenting an expected fuel injector resistance value to an onboard diagnostic component, the value is presented as a fuel injector simulator output; perceiving the fuel injector simulator output as a fuel injector output, an onboard diagnostic component perceives the outputs; communicating a fuel injector fault condition to a fuel injector simulator in response to the step of monitoring for and detecting a fault condition; and
,simulating a fuel injector fault to the onboard diagnostic component, the fuel injector simulates the fault in response to a communicated fuel injector fault condition. - View Dependent Claims (6, 7, 8)
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Specification