Ignition timing control device for internal combustion engine

Abstract

Abstract PURPOSE:To enable both of the knocking restraining control and a MBT control to be effected by detecting a combustion peak position where combustion pressure is maximum, for comparing it with a crank angle for a critical knocking value so as to detect knocking. CONSTITUTION:A crank angle where cylinder pressure from a pressure detecting means 'a' is maximum, is detected as peak combustion position by a peak position detecting means 'c', then a MBT control is effected by No.1 arithmatic means 'd' so as to maximize the development of torque. Then this peak position is compared with a critical value which is set by a means 'e' based on an operating condition detected by an operating condition detecting means 'b', by No.2 arithmatic means 'f' so as to see whether knocking takes place or not. And then, the basic timing based on the operating condition is corrected by an ignition timing setting means 'g' based on the result of the judgment made as described above so as to be outputted to an ignition means 'h'. Thus both of the knocking restraining control and the MBT control can be effected in a simple manner.

Inventors

• 👤 Nobutaka Takahashi
• 👤 高橋　伸孝
• 👤 Akito Yamamoto
• 👤 明人 山本

Bibliographic Details