A FUEL CONTROL SYSTEM FOR ACTUATING INJECTION MEANS FOR CONTROLLING SMALL FUEL FLOWS

摘要

A fuel control system for actuating injection means for controlling small fuel flows is described in a microprocessor based engine control system. The short time duration fuel pulses are sensed and the control system processes the skipping of the injection pulses in the opposite direction of cylinder ignition or precesses skipping around the engine. In one example, in every three fuel pulses, one is omitted and the remaining two are increased in time duration. This processing of the fuel pulses allows each cylinder to omit receiving fuel only once in four engine cycles for a four cylinder engine. Other counts may be used providing that the count is not a multiple of a factor of the total number of cylinders. The increased time duration of the fuel pulses allows actuation of the injector in its linear region of operation.