Internal combustion engine operating control system and method

Details Internal combustion engine operating control system and method Internal combustion engine operating control system and method

1982-09-20

1985-09-24

Dolinar, Andrew M.

Internal-combustion engines

Charge forming device

Including cylinder pressure or temperature responsive means

123425, F02D 3700

Patent

active

045427275

ABSTRACT:
To modify engine operation and reduce the tendency of the engine to knock or ping, a knocking signal is generated which is representative of knocking intensity and/or frequency of knocking occurrence, and compared with a permissible knocking signal. The result of the comparison is utilized to change an operating parameter of the engine, for example by injecting a fluid, e.g. water, into the engine, changing charge pressure, for example of a turbocharger or the like. The permissible engine knock signal can be modified in accordance with an engine operating parameter, for example at low temperature, or low speed, the permissible knocking limit can be raised since the damaging effect of knocking at low temperature or low speed is less than under different operating conditions.

REFERENCES:
patent: 2220558 (1940-11-01), Van Dijck et al.
patent: 4002155 (1977-01-01), Harned et al.
patent: 4012942 (1977-03-01), Harned
patent: 4133475 (1979-01-01), Harned et al.
patent: 4153020 (1979-05-01), King et al.
patent: 4322948 (1982-04-01), Emmenthal et al.
patent: 4364353 (1982-12-01), Fiala
patent: 4417556 (1983-11-01), Latsch

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