Abstract: In an approach to reduce nitrous oxide emissions using predictive urea dosing control, a route is determined. A set of target coverage fractions of ammonia is determined over a set of steps for the route, where the coverage fraction of ammonia is a ratio of stored ammonia to a maximum storage capacity of ammonia in a selective catalytic reduction (SCR) device. An actual coverage fraction of ammonia is determined for each step of the route. The actual coverage fraction of ammonia is compared to the target coverage fraction of ammonia for each step. The urea injection rate is adjusted based on a cost function.

Abstract: Vehicle controller circuitry for a subject vehicle. The vehicle controller circuitry includes vehicle constraint determination circuitry to determine vehicle constraints including predicted values for vehicle speed of at least one other vehicle and predicted values of for vehicle position of the at least one other vehicle relative to the subject vehicle, wherein the vehicle constraints are determined at predetermined time steps (k) over a time horizon (Th). The vehicle controller circuitry also includes traffic signal constraint determination circuitry to determine, within a distance horizon (Dh) from the subject vehicle, traffic signal constraints including a green signal state of at least one traffic signal, a distance to the at least one traffic signal relative to the subject vehicle, and a time remaining in the green signal state of the at least one traffic signal; wherein the traffic signal constraints are determined at the predetermined time steps (k) over the time horizon (Th).

Abstract: Vehicle controller circuitry for a subject vehicle to determine vehicle constraints including predicted values for vehicle speed of at least one other vehicle and predicted values of for vehicle position of the at least one other vehicle relative to the subject vehicle, wherein the vehicle constraints are determined at predetermined time steps (k) over a time horizon (Th).

Abstract: The present disclosure provides vehicle controller circuitry for a subject vehicle. The vehicle controller circuitry includes vehicle constraint determination circuitry to determine vehicle constraints including predicted values for vehicle speed of at least one other vehicle and predicted values of for vehicle position of the at least one other vehicle relative to the subject vehicle, wherein the vehicle constraints are determined at predetermined time steps (k) over a time horizon (Th).

Abstract: A system and method for providing an application-independent estimation of the state of health (SOH) of a battery. A battery terminal voltage, under a non-zero load, when a specific amount of charge has been drawn from the battery is compared to stored terminal voltage test data obtained under the same conditions. An estimate of SOH is provided in response to the comparison.

Abstract: A system and method for providing an application-independent estimation of the state of health (SOH) of a battery. A battery terminal voltage, under a non-zero load, when a specific amount of charge has been drawn from the battery is compared to stored terminal voltage test data obtained under the same conditions. An estimate of SOH is provided in response to the comparison.

Abstract: The present disclosure relates to a method and apparatus to reduce fuel consumption while remaining in NOx compliance by simultaneous and coordinated control of the engine and the selective catalytic reduction (SCR) system. More particularly, the present disclosure identifies methods and apparatus to increase NOx output within a diesel engine to optimize the performance of a given SCR system while simultaneously reducing fuel consumption at a selected and targeted intake oxygen concentration.

Abstract: A method, used with dual-fuel engine, of controlling the amount of diesel fuel delivered to the engine. The method compensates for the poor transient response of gaseous fueling. A controller receives a signal from the operator of the engine representing a desired torque, and based on this signal, determines a desired intake manifold state. It generates commands to various actuators to control the intake air and the intake gaseous fuel such that the desired intake manifold state will occur. The controller also receives sensor data from which the current in-cylinder state can be measured or estimated. It determines a current amount of diesel fuel based on the desired torque, the engine speed and the current in-cylinder state, and generates a diesel fueling command.

Abstract: A method, used with dual-fuel engine, of controlling the amount of diesel fuel delivered to the engine. The method compensates for the poor transient response of gaseous fueling. A controller receives a signal from the operator of the engine representing a desired torque, and based on this signal, determines a desired intake manifold state. It generates commands to various actuators to control the intake air and the intake gaseous fuel such that the desired intake manifold state will occur. The controller also receives sensor data from which the current in-cylinder state can be measured or estimated. It determines a current amount of diesel fuel based on the desired torque, the engine speed and the current in-cylinder state, and generates a diesel fueling command.

Abstract: A glow plug control apparatus for an engine of a motor vehicle, comprising at least one glow plug; a power source to apply electric power to the at least one glow plug; and a control unit comprising a microprocessor configured and arranged to determine glow plug supply power to be applied from the power source to the at least one glow plug based on input from stored vehicle data and from a plurality of engine sensors, wherein the input includes data of engine operating parameters including fresh air intake mass airflow, intake manifold total mass airflow, intake manifold temperature, coolant temperature, glow plug temperature and total fuel injection quantity.

Abstract: The present disclosure relates to a method and apparatus to reduce fuel consumption while remaining in NOx compliance by simultaneous and coordinated control of the engine and the selective catalytic reduction (SCR) system. More particularly, the present disclosure identifies methods and apparatus to increase NOx output within a diesel engine to optimize the performance of a given SCR system while simultaneously reducing fuel consumption at a selected and targeted intake oxygen concentration.

Abstract: The present disclosure provides a method to operate an internal combustion engine comprising storing a fueling command map having fueling index values, each of the fueling index values defining values for a plurality of fueling parameters, and a plurality of predetermined non-linear relationships that directly relate fueling index values to in-cylinder oxygen mass values; determining a temporary fueling index value; determining an in-cylinder oxygen mass value; identifying a predetermined relationship that directly relates fueling index values to in-cylinder oxygen mass values from the plurality of predetermined relationships to provide an identified predetermined relationship; determining that a current relationship of the temporary fueling index value to the calculated oxygen mass value differs from the identified predetermined relationship; and adjusting the temporary fueling index value using at least one fueling correction model to provide a revised fueling index value that approaches the identified pred

Abstract: A glow plug control apparatus for an engine of a motor vehicle, comprising at least one glow plug; a power source to apply electric power to the at least one glow plug; and a control unit comprising a microprocessor configured and arranged to determine glow plug supply power to be applied from the power source to the at least one glow plug based on input from stored vehicle data and from a plurality of engine sensors, wherein the input includes data of engine operating parameters including fresh air intake mass airflow, intake manifold total mass airflow, intake manifold temperature, coolant temperature, glow plug temperature and total fuel injection quantity.

Abstract: The present disclosure provides a method to operate an internal combustion engine comprising storing a fueling command map having fueling index values, each of the fueling index values defining values for a plurality of fueling parameters, and a plurality of predetermined non-linear relationships that directly relate fueling index values to in-cylinder oxygen mass values; determining a temporary fueling index value; determining an in-cylinder oxygen mass value; identifying a predetermined relationship that directly relates fueling index values to in-cylinder oxygen mass values from the plurality of predetermined relationships to provide an identified predetermined relationship; determining that a current relationship of the temporary fueling index value to the calculated oxygen mass value differs from the identified predetermined relationship; and adjusting the temporary fueling index value using at least one fueling correction model to provide a revised fueling index value that approaches the identified pred

Abstract: A hybrid system for powering a vehicle and a method of controlling the hybrid system. The hybrid system has both an internal combustion engine and a motor/generator. The vehicle is controlled in response to the combination of states of five control parameters of the vehicle: polarity of the MG (positive or negative), relative rotor/stator speed, fueling of engine (on or off), clutch (on or off), and transmission shift position (drive, reverse, park). A control unit receives data from the vehicle representing these states, and determines an associated control mode. In at least one of the control modes, the engine both drives the vehicles and provides power to the generator.

Abstract: A method of preventing a pre-ignition event within a cylinder (20) of a spark ignition engine (100) involves taking in-cylinder measurements and using the measurements to determine the instantaneous heat being released within the cylinder (20) as a function crank angle. If significant heat is being released before the intended spark timing, additional fuel is injected into the cylinder (20) immediately following the detection of early heat release (pre-ignition) within the same engine cycle, preferably within 45 crank angle degrees following the detection of pre-ignition. The additional fuel quenches the heat released within the cylinder (20) to prevent a pre-ignition event.

Abstract: A system and method for using a sliding mode control algorithm to control flow rates from air handling actuators and fuel injectors of an internal combustion engine. The sliding mode control is based on an engine model that represents the engine in terms of pressure and oxygen content states of the intake and exhaust manifolds (as a linear term) and controllable flow rates (as a nonlinear term).

Abstract: A system and method for using a sliding mode control algorithm to control flow rates from air handling actuators and fuel injectors of an internal combustion engine. The sliding mode control is based on an engine model that represents the engine in terms of pressure and oxygen content states of the intake and exhaust manifolds (as a linear term) and controllable flow rates (as a nonlinear term).

Abstract: A method of controlling combustion of an internal combustion engine that use fuel injection and that uses lean and rich modes of operation. Combustion control values, such as for fuel injection timing and quantity are determined by a torque representative value. This value is obtained from estimated in-cylinder conditions and from engine speed.

Abstract: A method and system for estimating engine-out NOx from a diesel engine. The estimation is calculated from a mathematical model that expresses engine-out NOx as functions of cylinder pressure, intake oxygen, and effective temperature, respectively. Input data for each of these functions may be obtained from fuel quantity data and from measured data, the latter including intake pressure, cylinder pressure, intake oxygen concentration, coolant temperature, and intake manifold temperature.