Safety device for a microcomputer controlled internal combustion

Details Safety device for a microcomputer controlled internal combustion Safety device for a microcomputer controlled internal combustion

1984-10-25

1986-05-13

Argenbright, Tony M.

Internal-combustion engines

Charge forming device

Fuel injection system

36443111, F02M 5100, H02H 324

Patent

active

045879397

ABSTRACT:
A safety device for a controlling unit of an internal combustion engine controlled by a microcomputer includes the following circuits: (a) a source of stabilized voltage which may be subject to fluctuations; (b) a first monitoring circuit responsive to voltage breaks in the voltage source to block the controlling unit for the duration of respective voltage breaks; (c) a second monitoring circuit responsive to the operability of the microcomputer to block the controlling unit for the duration of the resetting time of the microcomputer when a non-operative condition of the microcomputer is detected.

REFERENCES:
patent: 4255789 (1981-03-01), Hartford et al.
patent: 4503479 (1985-03-01), Otsuka et al.
patent: 4531190 (1985-07-01), Drews et al.

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