Distributed fuel delivery system for alternative gaseous fuel applications
First Claim
1. A control system comprising:
- an engine control module that generates fuel injector command signals for fuel injectors of an engine and engine parameter signals that indicate operating characteristics of the engine; and
a fuel injector control module that communicates with the engine control module via a network,whereinthe engine control module transmits the engine parameter signals to the fuel injector control module via the network,the fuel injector control module generates compensated fuel injector signals based on the fuel injector command signals and the engine parameter signals,the fuel injector control module generates at least one offset signal and transmits the at least one offset signal to the engine control module via the network, andthe engine control module receives information provided in the at least one offset signal and generates the fuel injector command signals based on the at least one offset signal.
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Accused Products
Abstract
A control system includes an engine control module that generates fuel injector command signals for fuel injectors of an engine and engine parameter signals that indicate operating characteristics of the engine. A fuel injector control module communicates with the engine control module via a network. The engine control module transmits the engine parameter signals to the fuel injector control module via the network. The fuel injector control module generates compensated fuel injector signals based on the fuel injector command signals and the engine parameter signals. The engine control module may generate fuel injector command signals for a gaseous fuel mode based on signals received from the fuel injector control module.
31 Citations
20 Claims
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1. A control system comprising:
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an engine control module that generates fuel injector command signals for fuel injectors of an engine and engine parameter signals that indicate operating characteristics of the engine; and a fuel injector control module that communicates with the engine control module via a network, wherein the engine control module transmits the engine parameter signals to the fuel injector control module via the network, the fuel injector control module generates compensated fuel injector signals based on the fuel injector command signals and the engine parameter signals, the fuel injector control module generates at least one offset signal and transmits the at least one offset signal to the engine control module via the network, and the engine control module receives information provided in the at least one offset signal and generates the fuel injector command signals based on the at least one offset signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A control system comprising:
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an engine control module that generates fuel injector command signals for fuel injectors of an engine and engine parameter signals that indicate operating characteristics of the engine; and a fuel injector control module that communicates with the engine control module via a network, wherein the engine control module transmits the engine parameter signals to the fuel injector control module via the network, the fuel injector control module generates compensated fuel injector signals based on the fuel injector command signals and the engine parameter signals, selects one of a liquid fuel mode and a gaseous fuel mode, and generates a fuel mode signal, the engine control module and the fuel injector control module switch between the liquid fuel mode and the gaseous fuel mode based on a transition of the fuel mode signal between the liquid fuel mode and the gaseous fuel mode and within a predetermined period, wherein the switch starts with a predetermined cylinder, and the engine control module adjusts fuel pulse calculations based on the fuel mode signal in the predetermined period and for a cylinder of the engine. - View Dependent Claims (13)
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14. An engine control module comprising:
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a first adaptation module that stores a first long term multiplier for a primary fuel; a second adaptation module that stores a second long term multiplier for a secondary fuel; a fuel mode module receives a fuel mode signal from a fuel injector control module via a network and enables one of (i) the first adaptation module and (ii) the second adaptation module based on the fuel mode signal; a closed loop fuel module that generates a first gain signal based on the first long term multiplier when operating on the primary fuel and a second gain signal based on the second long term multiplier when operating on the secondary fuel; and a fuel injection module that generates a fuel injector command signal based on one of the first gain signal and the second gain signal. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification