Fuel Pump Energization Timing Correction for Engine Control

The patent makes the calculation timing dynamic by linking it to the cam angle timing rather than using a fixed crank angle timing. The ECU calculates the cam angle timing based on the rotation speeds of the camshaft and crankshaft, allowing the calculation timing to adapt to different engine operating conditions and specifications. This resolves the contradiction by making the system flexible enough to maintain accuracy across various engine configurations while remaining implementable through standard sensor data.

The patent implements feedback by continuously monitoring the actual cam angle timing and comparing it with the predetermined crank angle timing. The ECU calculates the deviation between these timings and uses this feedback information to dynamically adjust the calculation timing. This ensures that the calculation always uses the newest control parameters while maintaining reliable energization completion, as the system adapts to real-time operating conditions rather than relying on fixed predetermined timings.

The patent changes the parameter used for calculation timing from a fixed crank angle to a dynamic cam angle timing calculated based on rotation speeds. This parameter change allows the system to maintain operational simplicity through automated calculation while achieving precise fuel discharge control by aligning the calculation timing with the actual mechanical events in the engine. The ECU automatically computes the appropriate timing based on sensor inputs, preserving ease of operation while eliminating the precision problems associated with fixed timing.