Knock control system for automobile internal combustion engine

Details Knock control system for automobile internal combustion engine Knock control system for automobile internal combustion engine

1992-12-22

1994-08-09

Focarino, Margaret A.

Motor vehicles

With means for detecting wheel slip during vehicle...

36442603, 123333, 123344, 123417, B60K 2816

Patent

active

053357442

ABSTRACT:
A system for controlling combustion knock, if occurring, in an engine by suppressing it by retarding ignition timing. The engine is equipped with traction control for preventing the driven wheel of the vehicle on which the engine is mounted from slipping. In the system, if the traction control is in process, by leaning out a mixture to be supplied to the engine at a high engine speed region, the knock control is discontinued so as to prevent the exhaust gas temperature from rising excessively and so as not to degrade a catalyst installed in the exhaust system and exhaust emission. The knock control is suspended for a period even after the supply of the lean mixture has ceased.

REFERENCES:
patent: 4951773 (1990-08-01), Poirier et al.
patent: 5012882 (1991-05-01), Oono et al.
patent: 5067579 (1991-11-01), Kushi et al.
patent: 5224004 (1993-06-01), Tamura et al.
patent: 5224565 (1993-07-01), Tamura et al.

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