A method for extracting characterizing features from an ion current trace retrieved from spark plugs of cylinders of an internal combustion engine, comprises the steps of: i. dividing the ion current signal into crank angle subintervals; 5 ii. calculating a measure of ion current in each crank angle subinterval; and iii. Performing a calculation on the measure of ion currents from different subintervals such that the result of the calculation is dimension free. Further it relates to a method of monitoring combustion processes where a plurality of ion current signals from a number of spark plugs (4A, 4B) are 10 retrieved and used in combination.

A filter monitor system (“FMS”) module is installed on the engine/vehicle and is connected to the filter systems, sensors and devices to monitor various performance parameters. The module also connects to the engine control module (“ECM”) and draws parameters from the ECM. The FMS module is capable of interfacing with various output devices such as a smartphone application, a display monitor, an OEM telematics system or a service technician's tool on a computer. The FMS module consists of hardware and software algorithms which constantly monitor filter systems and provide information to the end-user. FMS module provides necessary inputs and outputs for electronic sensors and devices.

A filter monitor system (“FMS”) module is installed on the engine/vehicle and is connected to the filter systems, sensors and devices to monitor various performance parameters. The module also connects to the engine control module (“ECM”) and draws parameters from the ECM. The FMS module is capable of interfacing with various output devices such as a smartphone application, a display monitor, an OEM telematics system or a service technician's tool on a computer. The FMS module consists of hardware and software algorithms which constantly monitor filter systems and provide information to the end-user. FMS module provides necessary inputs and outputs for electronic sensors and devices.

The disclosure concerns a method for model-based optimization, especially calibration, of a technical device, especially an internal combustion engine. The method may involve the following steps: detection of at least a first parameter in relation to the technical device being optimized which characterizes a physical quantity; first determination of at least one second parameter in relation to the technical device being optimized by at least a first physical model which characterizes at least one known physical relationship and for which the at least one first parameter is an input parameter; second determination of at least one third parameter by at least one first empirical model based on measurements on a plurality of already-known technical devices of the same kind, especially internal combustion engines, and for which at least the at least one second parameter is an input parameter, wherein the at least one third parameter is suited to characterizing the technical device being optimized and/or to providing a basis for making a change in the technical device being optimized, especially to adjusting a control unit of the technical device being optimized; and outputting the at least one third parameter.

The disclosure concerns a method for model-based optimization, especially calibration, of a technical device, especially an internal combustion engine. The method may involve the following steps: detection of at least a first parameter in relation to the technical device being optimized which characterizes a physical quantity; first determination of at least one second parameter in relation to the technical device being optimized by at least a first physical model which characterizes at least one known physical relationship and for which the at least one first parameter is an input parameter; second determination of at least one third parameter by at least one first empirical model based on measurements on a plurality of already-known technical devices of the same kind, especially internal combustion engines, and for which at least the at least one second parameter is an input parameter, wherein the at least one third parameter is suited to characterizing the technical device being optimized and/or to providing a basis for making a change in the technical device being optimized, especially to adjusting a control unit of the technical device being optimized; and outputting the at least one third parameter.

Method for controlling an internal combustion engine of an agricultural vehicle comprising the following steps, acquisition of a rated torque curve of said internal combustion engine, as a function of a rotation speed of said internal combustion engine, selection of a predefined speed value (PTS) of the internal combustion engine, introduction of a modified torque curve having torque values increased for speeds below said predefined speed value (PTS), switching from said rated torque curve to said modified torque curve when at least one operating condition has occurred.

An electronic device includes a voltage regulator circuit having a power NFET coupled between an upper supply voltage and a pre-regulator output node and a current source coupled in series with a diode element between the upper supply voltage and a lower supply voltage. A gate of the power NFET is coupled to a first node between the current source and a diode element. A bypass circuit includes a power PFET coupled between the upper supply voltage and the pre-regulator output node. A comparison circuit is coupled to turn the bypass circuit off when the upper supply voltage is greater than a regulation threshold voltage.

Methods and systems are provided for diagnosing the functioning of a variable displacement oil pump. In one example, a method may include commanding a change in displacement of the variable displacement oil pump during a vehicle keyed-off condition and diagnosing a degradation of the oil pump based on a corresponding change in an estimated crankcase pressure.

Methods and systems are provided for diagnosing the functioning of a variable displacement oil pump. In one example, a method may include commanding a change in displacement of the variable displacement oil pump during a vehicle keyed-off condition and diagnosing a degradation of the oil pump based on a corresponding change in an estimated crankcase pressure.

A method of detecting failures of an engine control computer including at least: a hardware layer, a software layer comprising at least one activation cycle of the load m phase(s) of activation of said load with: actuation of the load, first timeout, deactivation of the load, second timeout. The method of detecting failures includes a measurement time window during which the following are carried out: an initialization of the measurement variables, detection of an actuation of the load, an action of reinitializing the engine control computer if at least one of the following conditions is valid: ΔT1>ΔT1_ref, ΔT2<ΔT2_ref, ΔT3>ΔT3_ref, ΔT4<ΔT4_ref.