US 2026/0201846 A1 · FUELING SYSTEM CONTROLS INCLUDING DETECTION OF VALVE FULLY OPEN CONDITION

Abstract

A process of operating a computing system in operative communication with a fueling system including includes receiving a fueling command including a specified fuel quantity and a specified fuel pressure, determining a first fueling rate shape corresponding to the specified fuel pressure but not corresponding to the specified fuel quantity, determining a second fueling rate shape corresponding to the specified fuel quantity and the specified fuel pressure at least in part by modifying the first fueling rate shape by repositioning a post-maximum fueling portion of the first fueling rate shape relative to a pre-maximum fueling portion of the first fueling rate shape, updating a fuel metering device control model based on the second fueling rate shape, and at least one of controlling and diagnosing a fuel metering device of the fueling system using the updated fuel metering device control model.

Claims20

Dependent claims

A process of operating an electronic control system to control a fueling system, the process comprising:

operating a fuel injector to perform an injection in response to an injector control command including a pull in time (PIT);
determining a start of hold time (SOH) in response to the operating the fuel injector;
calculating a difference between the SOH and the PIT;
determining a valve fully open time (VFO) in response to the determining and the calculating;
modifying an injector control model based on the VFO;
and
controlling operation of the fuel injector using the updated injector control model.

4 more elements

Dependencies are inferred from the claim text.

Fueling system controls including detection of valve fully open condition

Life of this patent

Fueling system controls including detection of valve fully open condition

Life of this patent

Abstract

Claims20