Trouble detector system for an intake system of an automotive en

Details Trouble detector system for an intake system of an automotive en Trouble detector system for an intake system of an automotive en

1989-01-18

1991-02-05

Kamen, Noah P.

Internal-combustion engines

Accessories

Covers, trays, vibrators, corrosion inhibitors, air filters

123198DB, 123359, 123479, F02B 7700

Patent

active

049895621

ABSTRACT:
A plurality of reference pressures for pressure in an intake passage of the engine is stored in a memory so as to be derived in accordance with speed of the engine and opening degree of a throttle valve of the engine. A reference pressure is derived from the memory in accordance with the engine speed and the corrected opening degree. The pressure in an intake pipe is compared with the reference pressure. A fail-safe signal is generated when the intake pipe pressure is higher than the reference pressure. In response to the fail-safe signal, the fuel supply for the engine is cut off when the engine speed is higher than a predetermined speed.

REFERENCES:
patent: 4736719 (1988-04-01), Francia et al.
patent: 4780826 (1988-10-01), Nakano et al.

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