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    • 52. 发明申请
    • Fuel Injection Controller
    • 燃油喷射控制器
    • US20090070004A1
    • 2009-03-12
    • US11887829
    • 2006-04-05
    • Shingo Watanabe
    • Shingo Watanabe
    • F02D41/30
    • F02D41/22F02D41/221F02D41/222F02D41/2451F02D41/3845F02D2041/223F02D2041/224F02D2041/225F02D2200/0602F02D2200/0604
    • A fuel injection controller used for a fuel injection device that pumps high-pressure fuel to an accumulator and distributes the high-pressure fuel accumulated in the accumulator to injectors mounted in respective cylinders of an internal combustion engine calculates an input quantity and an output quantity of the fuel to and from the accumulator and monitors fuel pressure in the accumulator with a pressure sensor attached to the accumulator. The fuel injection controller has a determination device that determines whether there is a deviation between a sensing value Pcob1 of the pressure sensor and a corresponding value assumed from data Qpf applied to balance computation of the fuel input/output quantities and a storage part that stores the corresponding value Pcf2 based on the data Qpf applied to the balance computation and the sensing value Pcob1 of the pressure sensor and that enables subsequent reading out of the stored values. Thus, it can be determined whether the control is normal control or abnormal control based on the sensing signal of the fuel pressure sensor even if the characteristic deviation of the fuel pressure sensor arises due to incorrect wiring or the like.
    • 一种用于燃料喷射装置的燃料喷射控制器,其将高压燃料泵送到蓄能器并将积存在蓄电池中的高压燃料分配到安装在内燃机的各个气缸中的喷射器上,计算输入量和输出量 燃料往返于蓄能器并且利用连接到蓄能器的压力传感器监测蓄能器中的燃料压力。 燃料喷射控制器具有确定装置,其判定压力传感器的检测值Pcob1与应用于平衡燃料输入输出量的计算的数据Qpf所假定的对应值之间是否存在偏差,以及存储部 基于应用于平衡计算的数据Qpf和压力传感器的感测值Pcob1的对应值Pcf2,并且能够随后读出存储的值。 因此,即使由于布线不正确等导致燃料压力传感器的特性偏差,也可以基于燃料压力传感器的感测信号来判定控制是正常控制还是异常控制。