ARBITRATION STRATEGY FOR SLOW RESPONSE AND FAST RESPONSE TORQUE REQUESTS

The present disclosure relates to a system for managing engine output that includes a machine manager module and a combustion module. In one embodiment, the combustion module includes a slow response pathway and a fast response pathway. The slow response pathway includes managing air and fuel actuators and the fast response pathway includes managing spark timing. According to one embodiment, managing spark timing comprises bringing a spark actuator to the middle of a spark timing range for bi-directional control and involves sacrificing engine efficiency for engine responsiveness. Further, the fast response pathway may be selectively enabled based upon an optimization index. 1. A system for managing engine output , comprising:a machine manager module; anda combustion module, the combustion module comprising:a slow response pathway, and a fast response pathway.2. The system of claim 1 , wherein the slow response pathway comprises managing air actuators or other actuators with similar response times.3. The system of claim 1 , wherein the fast response pathway comprises managing spark timing claim 1 , fuel injection claim 1 , or other actuators that can affect a change in engine output from one combustion event to the next.4. The system of claim 3 , wherein managing spark timing comprises bringing a spark actuator to the middle of a spark timing range for bi-directional control.5. The system of claim 4 , wherein bringing a spark actuator to the middle of a spark timing range comprises sacrificing engine efficiency for engine responsiveness.6. The system of claim 1 , wherein the fast response pathway is selectively enabled based on an optimization index.7. The system of claim 1 , wherein requested engine output that exceeds the ability of the fast response pathway to control is considered and managed in the slow response pathway.8. The system of claim 1 , wherein the combustion module identifies and tracks the source of the torque requests through the arbitration ...

HEALTH MONITORING SYSTEMS AND TECHNIQUES FOR VEHICLE SYSTEMS

Systems and methods for monitoring health of one or more subsystems of a vehicle system are disclosed. At least one sensor can be operatively coupled to a vehicle subsystem having an operational signature and a control system is coupled to the at least one sensor. Using information provided by the at least one sensor, the control system is structured to generate a reference signature of the subsystem during a learning phase and an operational signature of the subsystem subsequent to the learning phase. Systems and methods for identifying the particular subsystem exhibiting degraded performance are also disclosed. 1. A system comprising:a powertrain including a plurality of associated subsystems;each of the subsystems including at least one sensor, the sensors being structured to generate operational values associated with the respective subsystem to which each sensor is coupled; generate a reference signature for each of the subsystems based on the operational values generated by the associated sensor during a learning phase of powertrain and subsystem operation by a user, wherein each of the reference signatures includes a learned normal average, a learned maximum, and a learned minimum of the operational values of the associated subsystem over the learning phase;', 'record the reference signatures for each of the subsystems in a memory of the control system;', 'generate an operational signature for each of the subsystems during operation of the powertrain subsequent to the learning phase, wherein the operational signatures each include a running average, a maximum, and a minimum of the operational values of the subsystem generated by the at least one sensor since the learning phase;', 'record the operational signatures for each of the subsystems in the memory; and', 'output the operational signatures and the reference signatures., 'a control system coupled to each of the sensors, the control system being configured to2. The system of claim 1 , wherein at least one ...

ARBITRATION STRATEGY FOR SLOW RESPONSE AND FAST RESPONSE TORQUE REQUESTS

The present disclosure relates to systems and methods for managing engine output. A method includes receiving at least one of a torque input and an acceleration input; generating a torque request for an engine; receiving the torque request; and determining an amount of the torque request that can be provided by a fast response actuator including a spark timing actuator based on a governed torque fraction value based on existing operating conditions of the spark timing actuator and a torque fraction value indicative of a total torque request value and an anticipated future torque demand value. The method includes managing the spark timing actuator to produce the amount of torque; determining a remaining amount of the torque request that cannot be provided the fast response actuator based on an existing operating condition of the engine; and commanding a slow response actuator to provide the remaining amount of the torque request. 1. A method for managing engine output , comprising:receiving, by a control system, at least one of a torque input and an acceleration input;generating, by the control system, a torque request for an engine;receiving, by the control system, the torque request;determining, by the control system, an amount of the torque request that can be provided by a fast response actuator based on a governed torque fraction value and a torque fraction value, the fast response actuator including a spark timing actuator, wherein the governed torque fraction value is based on information indicative of existing operating conditions of the spark timing actuator, and wherein the torque fraction value is indicative of a total torque request value and an anticipated future torque demand value;managing, by the control system, the spark timing actuator to produce the amount of torque; anddetermining, by the control system, a remaining amount of the torque request that cannot be provided the fast response actuator based on an existing operating condition of the ...

Method for determining document background for adjusting the dynamic range of an image of the document

The background grey-level of a document is determined based on the gain of the document. A histogram is generated and compressed. The standard deviation of the distribution curve of the compressed histogram is determined. A gain factor is determined using the mean and standard deviation. Using the background grey-level, the dynamic range of the document is adjusted.

Health monitoring systems and techniques for vehicle systems

Systems and methods for monitoring health of one or more subsystems of a vehicle system are disclosed. At least one sensor can be operatively coupled to a vehicle subsystem having an operational signature and a control system is coupled to the at least one sensor. Using information provided by the at least one sensor, the control system is structured to generate a reference signature of the subsystem during a learning phase and an operational signature of the subsystem subsequent to the learning phase. Systems and methods for identifying the particular subsystem exhibiting degraded performance are also disclosed.

Apparatus for controlling the flow of developer material in a development station

An apparatus for controlling a flow of developer material in a development station. Gating means for regulating the flow of developer material in a development station are mounted for movement between an open position, allowing a flow of developer material and a closed position inhibiting the flow. An abutment, movable with the gating means, has a pair of opposed surfaces and contacts a limiting surface when the gating means is in the open position. A crank is drivingly connected to a drive means. The crank has a portion which engages one of the opposed surfaces when the drive mechanism moves the crank in one direction. This causes the gating means to move toward the open position. The crank engages the other opposed surface when the drive means moves the crank in an opposite direction. This causes the gating device to move to the closed position.

Health monitoring systems and techniques for vehicle systems

Systems and methods for monitoring health of one or more subsystems of a vehicle system are disclosed. At least one sensor can be operatively coupled to a vehicle subsystem having an operational signature and a control system is coupled to the at least one sensor. Using information provided by the at least one sensor, the control system is structured to generate a reference signature of the subsystem during a learning phase and an operational signature of the subsystem subsequent to the learning phase. Systems and methods for identifying the particular subsystem exhibiting degraded performance are also disclosed.

Xerographic facsimile recorder