Mixed fuel system
AssigneeAmerican Power Group, Inc.
InventorsMichael A. Schiltz, Steven Ferguson
Life of this patent
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Abstract
The present invention provides a novel combination of devices to measure and transmit to an electronic controller data pertaining to differential pressures, temperatures, regeneration status, exhaust content, accumulated gas consumption and substitute fuel consumption. The electronic controller compares the data to thresholds; when the controller receives signals indicating these thresholds or limits are met, the controller causes the gas substitution rate to be diminished or set to zero until after-treatments elements are fully regenerated thereby facilitating integration of a mixed fuel system with an application internal combustion engine.
Claims17
A virtual dual fuel governor comprising programming configured to:
- receive driver input from a vehicle controller area network;
- calculate a total fuel demand;
- calculate a control diesel fuel demand;
- calculate a secondary fuel demand;
- send the secondary fuel demand to a secondary fuel flow controller to control a flow of secondary fuel to a diesel engine;
- send the control diesel fuel demand to a diesel electronic control module which uses the diesel fuel demand to control a flow of diesel fuel to the diesel engine, and
- calculate a diesel demand using a measured secondary fuel flow.
A vehicle comprising:
- a diesel engine configured to receive diesel fuel and a secondary fuel;
- a secondary fuel controller configured to control a flow of secondary fuel to the diesel engine;
- a diesel engine control module configured to control a flow of diesel fuel to the diesel engine, wherein the diesel engine control module is configured to control flow of diesel fuel to the diesel engine based on a control diesel fuel command generated by a virtual dual fuel governor and the secondary fuel controller is configured to control the flow of secondary fuel to the diesel engine based on a second fuel demand generated by the virtual dual fuel governor, wherein the virtual dual fuel governor is configured to calculate the diesel demand using a measured secondary fuel flow.
Dependencies are inferred from the claim text.