A system and method of managing an on-demand electrolytic reactor for supplying hydrogen and oxygen gas to an internal combustion engine. The system minimizes reactor's power consumption and parasitic energy loss generally associated with perpetual reactors. The system comprises a plurality of sensors coupled to the reactor measuring a plurality of reactor parameters, an electronic control unit coupled to the plurality of sensors and the engine, and a reactor control board coupled to the reactor and the electronic control unit. The electronic control unit: monitors the plurality of reactor parameters and the plurality of engine parameters; determines a reactor performance level; determines an engine performance level; determines a change in the engine performance level to forecast a future engine demand level; and determines an ideal reactor performance level corresponding to the engine performance level or the future engine demand level. The reactor control board regulates the reactor by modifying at least one of electrical current supplied to the reactor, electrical voltage supplied to the reactor, and temperature of the reactor.

The present invention obtains a humidity measuring device capable of performing self-diagnosis with high reliability. This humidity measuring device 20 has a diagnosis processing unit 25 for performing self-diagnosis by using gas temperatures and gas humidities before and after a gas in an ambient atmosphere to be measured is heat-controlled. The diagnosis processing unit has a diagnosis start determining unit 26 for determining whether the self-diagnosis can be started on the basis of an exchange state in the ambient atmosphere to be measured and the gas temperature and the gas humidity before the gas in the ambient atmosphere to be measured is heat-controlled, and a diagnosis continuation determining unit 28 for determining whether the self-diagnosis can be continued on the basis of the gas temperature and the gas humidity that are heat-controlled during the self-diagnosis.

A drive circuit (203) of an actuator (2) calculates an actual working angle from an actual operation quantity with reference to a reference table used to calculate a target operation quantity, and transmits the actual working angle and the actual operation quantity to a command unit (4). The command unit (4) determines whether or not the received values of the actual working angle and the operation quantity correspond to the valve working angle and the operation quantity of the reference table stored in the command unit (4), to detect a discrepancy between the operation modes of the actuator (2) and the command unit (4).

A control and evaluation unit for the operation and evaluation of at least one sensor, in particular for the operation and evaluation of at least one lambda probe of an internal combustion engine, signal inputs being disposed for the reception of analog measured signals of the at least one sensor, received analog measured signals being digitized by way of an analog/digital converter, a signal transfer unit, by way of which digitized signals are transferred to a calculation unit, being disposed, and provision being made in particular that the signal inputs are switchable by way of a multiplexer.

A control and evaluation unit for the operation and evaluation of at least one sensor, in particular for the operation and evaluation of at least one lambda probe of an internal combustion engine, signal inputs being disposed for the reception of analog measured signals of the at least one sensor, received analog measured signals being digitized by way of an analog/digital converter, a signal transfer unit, by way of which digitized signals are transferred to a calculation unit, being disposed, and provision being made in particular that the signal inputs are switchable by way of a multiplexer.

A vehicle according to the present disclosure includes an engine configured to autostop and autostart during a drive cycle. The vehicle additionally includes a user interface and a controller. The controller is configured to present on the user interface a metric indicative of a quantity of engine autostops during a drive cycle.

A vehicle according to the present disclosure includes an engine configured to autostop and autostart during a drive cycle. The vehicle additionally includes a user interface and a controller. The controller is configured to present on the user interface a metric indicative of a quantity of engine autostops during a drive cycle.

A system includes a control circuit and an adjustable low-pass filter. The control circuit is configured to receive an input signal and to control at least one engine output based on the input signal. The adjustable low-pass filter receives the input signal, and filters the input signal prior to forwarding the input signal to the control circuit. The adjustable low-pass filter has a first setting in which the adjustable low-pass filter has a first cut-off frequency and a second setting in which the adjustable low-pass filter has a second cut-off frequency. The first setting configures the control circuit to be used with a first sensor having a first dynamic range and the second setting configures the control circuit to be used with a second sensor having a second dynamic range.

A system includes a control circuit and an adjustable low-pass filter. The control circuit is configured to receive an input signal and to control at least one engine output based on the input signal. The adjustable low-pass filter receives the input signal, and filters the input signal prior to forwarding the input signal to the control circuit. The adjustable low-pass filter has a first setting in which the adjustable low-pass filter has a first cut-off frequency and a second setting in which the adjustable low-pass filter has a second cut-off frequency. The first setting configures the control circuit to be used with a first sensor having a first dynamic range and the second setting configures the control circuit to be used with a second sensor having a second dynamic range.

Methods and systems for use of model predictive control (MPC) controllers utilizing hybrid, quadratic solvers to solve a linear feasibility problem corresponding to a nonlinear problem for an internal combustion engine plant such as a diesel engine air path. The MPC solves a convex, quadratic cost function having optimization variables and constraints and directs the plant per the output solutions to optimize plant operation while adhering to regulations and constraints. The problem includes a combination of iterative and direct calculations in the primal space depending on whether a partial step (iterative) or a full step (direct) is attempted. Further, primal and dual space array matrices are pre-computed and stored offline and are retrieved via use of a unique identifier associated with a specific active set for a set of constraints. Such hybrid and/or offline calculations allow for a reduction in computational power while still maintaining accuracy of solution results.