A control method for use in controlling the operation of a turbo-charged engine comprises the steps of: using at least one engine parameter to derive a predicted transient air pressure value; sensing an actual air pressure value using a pressure sensor; and comparing the actual air pressure value with the predicted transient air pressure value to determine a predicted boost pressure error. The boost pressure error may be used in determining whether or not the pressure sensor is operating properl...

A method and apparatus for controlling the operation of a burner apparatus are provided via the flame intensity of combustion reaction mixtures of oxidant and fuel gas.

Reciprocating or push-pull control cable assemblies have fittings permanently attached, preferable by swaging or other mechanical deformation process, to the ends of a control cable or core that reciprocates within an outer casing. The fittings have a projected width no greater than the inner diameter of the casing. As a result, the entire control cable, with fittings attached, can be pulled through the casing to remove the control cable for inspection, maintenance or replacement. The cable also...

A method and apparatus for determining control signals of a filter for optimization of the gain profile of an amplifier, particularly though not exclusively for use in optical communications systems, and a system incorporating the same. The method is for calculating at least one control signal for at least one periodic filter arranged to alter the output gain profile of an amplifier, in which at least one of the phase and amplitude of the filter response are tuneable. The method includes the ste...

Pumps and injectors having a control valve spring arrangement configured to provide a force step when the control valve is at a rate shape position, and related methods for operating a control valve, are provided. The control valve is moveable over a stroke range between an open position and a closed position. The stroke range includes a rate shape position. The control valve spring arrangement is configured to provide a first spring force when the control valve is between the closed position an...

Methods of controlling processes having operating conditions, one or more inputs, and one or more outputs. The methods comprise defining acceptable steady state conditions, operating the process, and sampling output on the basis of a dual segment output population model, detecting destabilizing process events which result in output not representing acceptable output parameters, defining operating conditions according to which output is rejected, and defining output parameters according to which ...

A control interface for a data terminal includes a three-dimensional display of an environment which includes a number of objects. Different objects correspond to different data sources. The apparent location of the viewpoint in the environment is changed in response to input from the user. In response to the selection of a destination object by the user, the viewpoint moves from a current location to the location of the destination object gradually via a series of intermediate locations. The sp...

Apparatus for controlling the operational states of motor vehicle gears including a console, a lever mounted in the console whereby the lever can be articulated between a plurality of maneuverable positions corresponding to the operational states of the motor vehicle gears, the console comprising a housing and including a first groove and at least one track on at least one of the inner surfaces of the housing, a first support defining a first pivot hinge for the lever including a ball and socket...

A control system structured by a plurality of controller units for individually controlling a plurality of processing units for performing predetermined processes to a substrate, and a control unit including a server unit having a memory for reading and storing the process data generated by each control unit and a client unit having an editing section for reading the stored process data from the server unit and editing this process data and a display section for displaying the edited data.

An automated appliance control system includes a unit which transmits binary coded address and function control signals along the a.c. power line to a plurality of appliance control modules connected to the power line at various locations in the home. The binary coded signals transmitted along the a.c. power line are in the form of binary rf bursts which occur before and after the a.c. power line zero crossing points.