Abstract: A fuel injection apparatus comprising a fuel injection arrangement for delivering a fuel injection pulse sequence to a combustion chamber during a combustion cycle, the fuel injection pulse sequence comprising a plurality of discrete fuel injection pulses, each discrete fuel injection pulse having a fuel injection pulse type (for example: disabled, common rail pressure, pump pressure etc); a calculation module for monitoring a plurality of vehicle operating parameters, calculating a fuel injection mode in response thereto, and determining a fuel injection mode identifier; a controller arranged to receive the fuel injection mode identifier from the calculation module and operate the fuel injection arrangement in response thereto; wherein the fuel injection mode identifier (for example, a hexadecimal representation in the form of a data string) comprises a plurality of markers, each of the plurality of markers having an ordinal number and a value, wherein the ordinal number of each marker is indicative of the s

Abstract: A fuel injection apparatus comprising a fuel injection arrangement for delivering a fuel injection pulse sequence to a combustion chamber during a combustion cycle, the fuel injection pulse sequence comprising a plurality of discrete fuel injection pulses, each discrete fuel injection pulse having a fuel injection pulse type (for example: disabled, common rail pressure, pump pressure etc); a calculation module for monitoring a plurality of vehicle operating parameters, calculating a fuel injection mode in response thereto, and determining a fuel injection mode identifier; a controller arranged to receive the fuel injection mode identifier from the calculation module and operate the fuel injection arrangement in response thereto; wherein the fuel injection mode identifier (for example, a hexadecimal representation in the form of a data string) comprises a plurality of markers, each of the plurality of markers having an ordinal number and a value, wherein the ordinal number of each marker is indicative of the s

Abstract: The invention provides a method of compensating for the error of a signal indicative of the mass of air flow output from an air mass flow sensor for an internal combustion engine, the method comprising deriving an air mass flow value from an air mass flow sensor output, calculating a compensated air mass flow value based on the air mass flow value and a compensation value, calculating an estimated air mass flow value from engine operating parameter values, calculating a new compensation value based upon the compensated air mass flow value and the estimated air mass flow value and using the new compensation value for subsequent calculations of the compensated air mass flow value.

Abstract: The invention provides a method of compensating for the error of a signal indicative of the mass of air flow output from an air mass flow sensor for an internal combustion engine, the method comprising deriving an air mass flow value from an air mass flow sensor output, calculating a compensated air mass flow value based on the air mass flow value and a compensation value, calculating an estimated air mass flow value from engine operating parameter values, calculating a new compensation value based upon the compensated air mass flow value and the estimated air mass flow value and using the new compensation value for subsequent calculations of the compensated air mass flow value.