Crank angle detector for an engine

Details Crank angle detector for an engine Crank angle detector for an engine

1989-09-25

1990-09-04

Wolfe, Willis R.

Internal-combustion engines

Charge forming device

Fuel injection system

123424, 123179BG, F02P 515

Patent

active

049535315

ABSTRACT:
A crank angle detector for an engine includes a cam rotor plate for detecting a cylinder number to be ignited and a cam pulse sensor provided opposite thereto, a crank rotor plate for sensing a crank angle and a crank pulse sensor provided opposite thereto, and a controller for determining ignition timings of respective cylinders to control an ignition. The crank rotor plate is constituted by a rotor plate at starting for sensing a fixed ignition timing and a rotor plate for a normal operation. A pair of crank pulse sensors are provided opposite to the rotor plates, respectively. An input signal for the fixed ignition timing is mask-released only at starting. After that, input is continuously masked during normal operation.

REFERENCES:
patent: 4365602 (1982-12-01), Stiller et al.
patent: 4380983 (1983-04-01), Kobashi et al.
patent: 4414946 (1983-11-01), Daumer et al.
patent: 4489691 (1984-12-01), Ono et al.
patent: 4494509 (1985-01-01), Long
patent: 4520781 (1985-06-01), Nishida
patent: 4644917 (1987-02-01), Yakuwa et al.
patent: 4766865 (1988-08-01), Hartel
patent: 4873958 (1989-10-01), Abe

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