Abstract: An apparatus includes a logistics manager that includes a processor. The logistics manager is communicably coupled to at least one of a first wireless communication module onboard a first vehicle and a second wireless communication module onboard a second vehicle. The logistics manager is configured to: receive, via the first wireless communication module, first data regarding the first vehicle, where the first data is provided by a first sensor module onboard the first vehicle; receive, via the second wireless communication module, second data regarding the second vehicle, where the second data is provided by a second sensor module onboard the second vehicle; and provide navigational commands to at least one of the first vehicle and the second vehicle based on a cost and benefit analysis in response to at least one the first data and the second data.

Abstract: The disclosure provides a system and method to calculate an actual on-time of a fuel injector. The system may include one or more modules located in a control system. The control system uses information available before the fuel injection signal is transmitted to the fuel injector to model and predict a pressure profile in a fuel system that provides high-pressure fuel to the fuel injector, and uses that information along with a fueling command to calculate an actual on-time for the fuel injector.

Abstract: A system to detect the presence of a catalyst includes an exhaust gas tube, a first temperature sensing device, a second temperature sensing device, a flow rate measurement device, and a processing device. The first temperature sensing device measures a first temperature of exhaust gas upstream of the exhaust gas tube. The second temperature sensing device measures a second temperature of the exhaust gas downstream of the exhaust gas tube. The processing device estimates an expected time delay between the measured inlet and outlet exhaust gas temperatures corresponding to a system with a catalyst present. The processing device may also determine the presence of a catalyst by comparing the measured second temperature to the measured first temperature and comparing the measured second temperature to an estimated delayed first temperature associated with the expected time delay.

Abstract: The disclosure provides a system and method to calculate an actual on-time of a fuel injector. The system may include one or more modules located in a control system. The control system uses information available before the fuel injection signal is transmitted to the fuel injector to model and predict a pressure profile in a fuel system that provides high-pressure fuel to the fuel injector, and uses that information along with a fueling command to calculate an actual on-time for the fuel injector.

Abstract: An apparatus includes a logistics manager that includes a processor. The logistics manager is communicably coupled to at least one of a first wireless communication module onboard a first vehicle and a second wireless communication module onboard a second vehicle. The logistics manager is configured to: receive, via the first wireless communication module, first data regarding the first vehicle, where the first data is provided by a first sensor module onboard the first vehicle; receive, via the second wireless communication module, second data regarding the second vehicle, where the second data is provided by a second sensor module onboard the second vehicle; and provide navigational commands to at least one of the first vehicle and the second vehicle based on a cost and benefit analysis in response to at least one the first data and the second data.

Abstract: A system and method of detecting fueling imbalance(s) in an internal combustion engine is provided. The method includes receiving data regarding an oxygen content of engine exhaust for the engine operating at a cycle rate. Frequency component analysis is performed comprising a filtering operation on the received oxygen content data. The filtering is done at the cycle rate of the engine or harmonics thereof to obtain filtered oxygen content data. Then, the method/system determines at least one of: 1) one or more angles of the engine at which the filtered oxygen content data exhibits a first amplitude value characteristic relative to amplitude values at other angles; and 2) a shape of the filtered oxygen content data obtained by sampling at pre-defined engine angles. The method/system then identifies a cylinder experiencing a fueling imbalance responsive to the determined at least one of one or more angle(s) and shape of the data.

Abstract: An apparatus includes a logistics manager that includes a processor. The logistics manager is communicably coupled to at least one of a first wireless communication module onboard a first vehicle and a second wireless communication module onboard a second vehicle. The logistics manager is configured to: receive, via the first wireless communication module, first data regarding the first vehicle, where the first data is provided by a first sensor module onboard the first vehicle; receive, via the second wireless communication module, second data regarding the second vehicle, where the second data is provided by a second sensor module onboard the second vehicle; and provide navigational commands to at least one of the first vehicle and the second vehicle based on a cost and benefit analysis in response to at least one the first data and the second data.

Abstract: The disclosure provides a system and method for detecting inhomogeneous fueling between fuel injectors in an internal combustion engine without resorting to a measurement of the amount of fuel delivered by each fuel injector, permitting rapid and effective adjustment of fueling by any fuel injector deviating from the homogeneity of other fuel injectors in the engine. The benefit of modifying fueling in this manner is that fueling by each fuel injector 38 is balanced independent of actual measurements of fuel delivery, simplifying the process of correcting cylinder-to-cylinder fueling imbalances. The described system and method require no intrusion into a fueling system of the engine and uses currently existing components.

Abstract: An apparatus for determining a deterioration of a NOx sensor response rate in an internal combustion engine system includes an engine control module configured to stop fueling to an internal combustion engine during motoring of the internal combustion engine. The apparatus also includes a signal monitoring module configured to monitor a NOx sensor signal after the engine control module stops fueling to the internal combustion engine during motoring of the engine and store NOx sensor signal data corresponding to the monitored NOx sensor signal. Additionally, the apparatus includes a time constant module that is configured to determine a time constant of the NOx sensor response after the engine control module stops fueling. The apparatus further includes a response rate deterioration module configured to determine a response rate deterioration value of the NOx sensor based at least partially on the determined time constant.

Abstract: In one embodiment, an apparatus for determining a deterioration of a NOx sensor response rate in an internal combustion engine system includes an engine control module configured to stop fueling to an internal combustion engine during motoring of the internal combustion engine. The apparatus also includes a signal monitoring module configured to monitor a NOx sensor signal after the engine control module stops fueling to the internal combustion engine during motoring of the engine and store NOx sensor signal data corresponding to the monitored NOx sensor signal. Additionally, the apparatus includes a time constant module that is configured to determine a time constant of the NOx sensor response after the engine control module stops fueling. The apparatus further includes a response rate deterioration module configured to determine a response rate deterioration value of the NOx sensor based at least partially on the determined time constant.