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    • 4. 发明授权
    • Fuel injection system and fuel injecting method for internal combustion engine
    • 燃油喷射系统和内燃机燃油喷射方法
    • US06832596B2
    • 2004-12-21
    • US10645496
    • 2003-08-22
    • Tsuguo WatanabeOsamu Nishioka
    • Tsuguo WatanabeOsamu Nishioka
    • F02D4122
    • F02D41/3094F02D31/009F02D37/02F02D41/2422F02D41/34F02D2200/023F02D2200/0404F02D2200/0406F02D2200/0414F02D2200/501F02M69/043F02M69/044Y02T10/44
    • An internal combustion engine in which fuel injection valves are arranged on the upstream side and on the downstream side of the throttle valve respectively, in which process values such as the engine speed and the vehicle speed cause fuel injection to be accurately restricted at predetermined upper limit values. A total injection quantity determination unit determines total quantity Qtotal of fuel to be injected from the upstream side and downstream side fuel injection valves. An injection rate determination unit determines an injection rate Rupper of the upstream injection valve. An injection quantity restriction unit restricts fuel injection of each of the fuel injection valves when process values such as the vehicle speed and the engine speed reach or approach the predetermined upper limit value. The injection quantity determination unit determines the injection quantity Qupper of the upstream injection valve and the injection quantity Qlower of the downstream injection valve.
    • 一种内燃机,其中分别在节流阀的上游侧和下游侧配置有燃料喷射阀,其中诸如发动机转速和车速的过程值使得燃料喷射被精确地限制在预定上限 价值观。 总喷射量确定单元确定从上游侧和下游侧燃料喷射阀喷射的燃料的总量Qtotal。 喷射率确定单元确定上游喷射阀的喷射率Rupper。 当车速和发动机转速等处理值达到或接近预定的上限值时,喷射量限制单元限制每个燃料喷射阀的燃料喷射。 喷射量确定单元确定上游喷射阀的喷射量Qupper和下游喷射阀的喷射量Qlower。