Internal combustion engine knock determination device and...

Details Internal combustion engine knock determination device and... Internal combustion engine knock determination device and...

2007-08-28

2007-08-28

Wolfe, Jr., Willis R. (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C123S406340, C123S406470, C073S035090

Reexamination Certificate

active

11108809

ABSTRACT:
An engine ECU executes a program including the steps of: detecting a waveform of vibration of an engine at a predetermined knock detection gate; determining whether a detected vibration's waveform and a knock waveform model stored in memory match within a predetermined range; if the model and the detected vibration's waveform match within the predetermined range, determining that the engine knocks; and if the model and the detected vibration's waveform do not match within the predetermined range, then determining that the engine does not knock.

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