초록 ▼

An ignition timing control system for suppressing the knocking of an internal-combustion engine by delaying the ignition timing in proportion to the magnitude of the knocking, which includes a phase delay limiter for limiting a controlled phase delay below a predetermined value when the magnitude of

An ignition timing control system for suppressing the knocking of an internal-combustion engine by delaying the ignition timing in proportion to the magnitude of the knocking, which includes a phase delay limiter for limiting a controlled phase delay below a predetermined value when the magnitude of knocking exceeds a preset value.

대표청구항 ▼

An ignition timing control system for an internal-combustion engine, comprising a knocking detector capable of providing a knocking detection signal having pulses proportional to the magnitude of the knocking of the internal-combustion engine; a phase delay limiter which integrates the pulses of sai

An ignition timing control system for an internal-combustion engine, comprising a knocking detector capable of providing a knocking detection signal having pulses proportional to the magnitude of the knocking of the internal-combustion engine; a phase delay limiter which integrates the pulses of said knocking detection signal in every ignition period to produce said knocking detection signal at the output terminal thereof when the integral of said knocking detection signal is smaller than a predetermined set value or to interrupt said knocking detection signal when said integral reaches said set value; an integrator which integrates the pulses of said knocking detection signal produced at the output terminal of the phase delay limiter; means to generate a reference ignition timing signal; and a phase delay controller for delaying the phase of said reference ignition timing signal in proportion to the output of the integrator.