Abnormality detecting system for an automotive engine

Details Abnormality detecting system for an automotive engine Abnormality detecting system for an automotive engine

1989-04-20

1990-07-10

Kamen, Noah P.

Internal-combustion engines

Accessories

Covers, trays, vibrators, corrosion inhibitors, air filters

F02B 7700

Patent

active

049400304

ABSTRACT:
An accelerator sensor is provided for detecting depression degree of an accelerator pedal of a vehicle, and a torque sensor is provided for detecting output torque of an engine. A memory stores reference torques which are arranged in accordance with depression degree of the accelerator pedal and engine speed. The torque detected by the torque sensor is compared with a reference torque derived from the memory in accordance with the depression degree of the accelerator pedal and engine speed. When the detected torque deviates from a permissible range with respect to the derived reference torque, abnormality is indicated.

REFERENCES:
patent: 4574752 (1986-03-01), Reichert, Jr. et al.
patent: 4621600 (1986-11-01), Hasegawa
patent: 4729357 (1988-03-01), Freudenschuss et al.
patent: 4811808 (1989-03-01), Matsumoto et al.

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