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: A controller for determining drive pulse structures for controlling the operation of control valves of a fuel-injected engine, the engine comprising a first injector and at least one further injector, and the controller comprising: inputs for receiving fuel value data relating to the quantity of fuel injected per injection cycle per injector for the at least one further injector; outputs for outputting a control function for controlling the injector valves of the first injector, the control function being derived from a control valve drive pulse structure; a processor for controlling the control function output from the controller wherein the processor is arranged to (i) progressively modify the control valve drive pulse structures, (ii) to detect injection events within the first injector by measuring changes in the fuel value data relating to the at least one further injector and (iii) to thereby determine the minimum width of the drive pulse structures that permit injection to take place.