| 摘要 |
A speed dependent ignition controller (10) and method utilizes a sensor output signal (A) to provide spark occurrence and dwell initiation at retard and advance angles (R, A) for an internal combustion engine. The sensor signal (A) has a pulse width (A-R) proportional to the difference between a desired ignition advance (A) and retard (R) angle. At low rpm, the sensor signal (A) is inverted to produce a retarded ignition angle (R) while at high rpm's the signal is utilized without inversion to produce an advance ignition angle (A). |
