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    • 48. 发明专利
    • Fuel injection control system for an internal combustion engine
    • 空值
    • JP3362317B2
    • 2003-01-07
    • JP25403793
    • 1993-10-12
    • トヨタ自動車株式会社
    • 善一郎 益城
    • F02B17/00F02B23/10F02D41/00F02D41/04F02D41/34F02M25/07
    • F02D41/0065F02D41/3029F02D41/3094Y02T10/47
    • PURPOSE:To completely prevent respectively a misfire from being generated and an NOX generating amount from increasing even when not realized-a desired recirculation rate due to an adjusting delay by actuating together two kinds of fuel injection valves when detected the adjusting delay of recirculated exhaust gas amount. CONSTITUTION:An internal combustion engine is provided with the first fuel injection valve 7 for attaining stratified combustion by directly injecting fuel into a combustion chamber 1 and the second fuel injection valve 10 for attaining uniform combustion by injecting fuel to an intake passage 3 in the downstream of a throttle valve 9. On the other hand, the intake passage 3 in the downstream of the throttle valve 9 communicates with an exhaust passage 5 in an exhaust gas recirculating passage 11, to arrange therein a control valve 12 for controlling a recirculating exhaust gas amount. Here in a control device 20, based on each detection signal from each sensor 21 to 23 for detecting an operating condition of the internal combustion engine, both the fuel injection valves 7, 10 are switched to be actuated. When an adjusting delay of the recirculating exhaust gas amount is detected at switching time, both the fuel injection valves 7, 10 are actuated together.
    • 目的:为了完全防止产生失火,即使在不实现时,NOX产生量也会增加 - 当检测到再循环废气的调整延迟时,通过将两种燃料喷射阀联动起来,由于调节延迟所需的再循环速率 量。 构成:内燃机设置有第一燃料喷射阀7,用于通过将燃料直接喷射到燃烧室1中而实现分层燃烧,第二燃料喷射阀10用于通过向下游的进气通道3喷射燃料来实现均匀燃烧 另一方面,节流阀9的下游侧的进气通路3与废气再循环路11的排气通路5连通,配置有用于控制再循环废气的控制阀12 量。 这里,在控制装置20中,基于来自各传感器21〜23的各检测信号,检测内燃机的运转状况,将两个燃料喷射阀7,10切换成致动状态。 当在切换时刻检测到循环排气量的调整延迟时,两个燃料喷射阀7,10一起被致动。