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    • 10. 发明专利
    • Fuel injection controller of internal combustion engine
    • 内燃机燃油喷射控制器
    • JP2013241924A
    • 2013-12-05
    • JP2012117175
    • 2012-05-23
    • Suzuki Motor Corpスズキ株式会社
    • KURIYAMA SAKOINADA HIROKI
    • F02D41/34F02D45/00
    • F02D41/00F02D35/026F02D41/345F02D2041/1412Y02T10/44
    • PROBLEM TO BE SOLVED: To more properly predict early ignition, and to more properly perform fuel injection in an intake stroke for suppressing generation of the early ignition.SOLUTION: A fuel injection controller of an internal combustion engine for controlling a fuel injection valve 15 arranged in a gas introduction passage to a cylinder positioned at an upstream side with respect to an intake valve provided on the cylinder of the internal combustion engine has: a fuel injection valve control part 60 for injecting fuel from the fuel injection valve 15 in an exhaust stroke of the cylinder in which an exhaust valve is open; a cylinder internal gas temperature calculating part 58 for estimating a cylinder internal temperature when the cylinder is compressed; and an injection control detail determination part 59 for injecting the fuel from the fuel injection valve 15 in the cylinder intake stroke in which an intake valve is open when it is determined that the cylinder internal temperature in compression calculated by the cylinder internal gas temperature calculating part 58 is higher than a temperature predicted to generate the early ignition, and changing control to be performed by the fuel injection valve control part 60 so as to supply the fuel into the cylinder.
    • 要解决的问题:为了更正确地预测早期点火,并且在进气冲程中更适当地执行燃料喷射以抑制早期点火的产生。解决方案:用于控制燃料喷射阀15的内燃机的燃料喷射控制器 在相对于设置在内燃机的气缸上的进气门位于相对于上游侧的气缸的气体导入通路中具有:燃料喷射阀控制部60,用于在排气冲程中从燃料喷射阀15喷射燃料 的排气阀打开的气缸; 气缸内部气体温度计算部58,用于在压缩气缸时估计气缸内部温度; 以及喷射控制细节确定部59,用于当确定由气缸内部气体温度计算部分计算的压缩气缸内部温度时,从进气门打开的气缸进气冲程中将来自燃料喷射阀15的燃料喷射 58高于预测产生早期点火的温度,并且改变由燃料喷射阀控制部分60执行的控制,以将燃料供应到气缸中。