Fuel control apparatus

Details Fuel control apparatus Fuel control apparatus

1987-04-22

1989-01-10

Dolinar, Andrew M.

Internal-combustion engines

Charge forming device

Fuel injection system

123494, 731182, 7320427, F02D 4122

Patent

active

047965886

ABSTRACT:
A fuel control apparatus comprises a hot-wire type intake air quantity sensor disposed in an air intake passage for an internal combustion engine to detect the quantity of air passing therethrough, a burn-off control section for heating a hot wire at a temperature higher than a temperature in the normal operation, after the engine has been stopped, so as to burn off a deposit on the hot wire, wherein the operation of the burn-off control section is stopped when an output from the sensor exceeds a predetermined value. A signal indicative of a trouble in the sensor can be generated.

REFERENCES:
patent: 4420971 (1983-12-01), Rapps et al.
patent: 4450815 (1984-05-01), Mouri
patent: 4462251 (1984-07-01), Sumal
patent: 4565091 (1986-01-01), Ito et al.
Patent Abstracts of Japan, vol. 7, No. 223 (M-247)[1368], Oct. 4, 1983; & JP-A-58-117 326 (Nissan Jidosha K.K.) 12-07-1983.

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