| 摘要 |
PURPOSE:To prevent engine stall due to load on an auxiliary machine by providing means for detecting the decelerated state of engine and means for detecting dropped rotation by prohibiting stoppage of fuel supply upon abrupt drop rotation. CONSTITUTION:An electromagnetic fuel injection valve 3 is mounted on an intake manifold 2 of engine body 1. While throttle valve opening sensor 5, engine rotation sensor 7 and intake air sensor 8 are provided respectively on a throttle valve 4, distributor 6 and in the upstream of throttle valve 4. Output signals from said sensors 5, 7, 8 are fed to a control circuit 9 to drive the fuel injection valve 3. Here, deceleration detecting section A, engine rotation drop detecting section B and engine rotation drop comparing section C are provided in the control circuit 9. If the rotation drop is larger than the setting level under specific deceleration state, stopping of injection pulse output E through fuel injection stopping means F is prohibited. |
