| 摘要 |
An electronic fuel injection system includes a mass flow transducer, an integrator which periodically accumulates a signal corresponding to the total mass of air aspirated into the engine during a preceding fraction of an engine cycle, a signal storage capacitor which is charged periodically to the integrator output voltage under the control of an analog gate, a controlled current source normally giving a constant current, but overridingly controllable by the integrator output at extremes of the range of the integrator output and connected to discharge the capacitor and a comparator sensing the voltage on the capacitor and controlling the length of time for which the injector is open.
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