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    • 42. 发明授权
    • Glow plug system, controlling device and method for controlling the power of a glow plug
    • 辉光插头系统,控制装置和控制电热塞功率的方法
    • US08017888B2
    • 2011-09-13
    • US12214657
    • 2008-06-20
    • Martin BlancPeter SchäferGerd Bräuchle
    • Martin BlancPeter SchäferGerd Bräuchle
    • F23Q7/00F02P5/00
    • F02P19/02
    • The description discloses a glow plug system for a Diesel engine of a motor vehicle having a glow plug (RG1, RG2) which comprises a positive terminal for connecting a supply voltage (U1) and a ground terminal for connecting to a ground potential (GND), a controlling device (1) for controlling the electric power supplied to the glow plug (RG1, RG2) in operation, whereby the controlling device (1) comprises a measurement input (ADC1) and a ground input (ADC2) in order to determine, in operation, a measured value of the supply voltage (U1) in relation to a reference potential (GND′) applied to the ground input (ADC2). The controlling device (1) has a test input (ADC3) which, in operation, is connected to a test voltage source via a first resistor (R1) and to the positive terminal of the glow plug (RG1, RG2) via a second resistor (R2), whereby the controlling device (1), in operation, determines a difference of the electric potential of the test input (ADC3) and the electric potential (GND′) of the ground input (ADC2), determines a deviation of the difference of these potentials from a reference value and, if this deviation is unequal to zero, uses the deviation to correct the measured value of the supply voltage (U1) and uses the corrected value of the supply voltage (U1) as for controlling the power. Furthermore, the description discloses a controlling device for a glow plug system of this type and a method for controlling the power of a glow plug.
    • 该说明书公开了一种用于具有电热塞(RG1,RG2)的机动车辆的柴油发动机的电热塞系统,其包括用于连接电源电压(U1)的正极端子和用于连接到地电位(GND)的接地端子, 控制装置(1),用于控制在运行中提供给预热塞(RG1,RG2)的电力,由此控制装置(1)包括测量输入(ADC1)和接地输入(ADC2),以便确定 在操作中,相对于施加到接地输入(ADC2)的基准电位(GND')的电源电压(U1)的测量值。 控制装置(1)具有测试输入(ADC3),其在操作中经由第一电阻器(R1)连接到测试电压源,并经由第二电阻器连接到电热塞(RG1,RG2)的正极端子 (R2),由此,操作中的控制装置(1)确定测试输入(ADC3)的电位差和接地输入(ADC2)的电位(GND')之间的差异,确定 这些电位与参考值的差异,如果该偏差不等于零,则使用该偏差来校正电源电压(U1)的测量值,并使用电源电压(U1)的校正值作为控制功率 。 此外,该说明书公开了这种类型的电热塞系统的控制装置和用于控制电热塞的功率的方法。