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    • 3. 发明申请
    • METHOD FOR OPERATING A FUEL SYSTEM
    • 一种燃油系统的运行方法
    • US20090164102A1
    • 2009-06-25
    • US12340114
    • 2008-12-19
    • Stephan OLBRICHRainer PeckChristian KriechbaumMichael SchenkSteffen Meyer-SalfeldRene ZieherMarkus Viereck
    • Stephan OLBRICHRainer PeckChristian KriechbaumMichael SchenkSteffen Meyer-SalfeldRene ZieherMarkus Viereck
    • F02D41/30
    • F02D41/3836F02D41/222F02D2041/223
    • In a fuel system of an internal combustion engine, the fuel quantity injected into a combustion chamber is a function of an activation period, during which a fuel injection device is activated. A pressure sensor detects the pressure in the fuel rail and provides a signal. The pressure in the fuel rail may be regulated to a setpoint pressure using a setting unit and employing the signal provided by the pressure sensor. The following method is provided for testing the fuel system: (a) establishing a test fuel quantity to be injected; (b) operating the internal combustion engine using a first setpoint pressure and a first activation period corresponding thereto and to the test fuel quantity to be injected; (c) detecting a speed- or torque-dependent variable characterizing the operating state; (d) operating the internal combustion engine using a second setpoint pressure and a second activation period corresponding thereto and to the test fuel quantity to be injected; (e) detecting a speed- or torque-dependent variable characterizing the operating state; (f) implementing an action if the variables detected in (c) and (e) differ by more than a limit value.
    • 在内燃机的燃料系统中,喷射到燃烧室中的燃料量是激活燃料喷射装置的激活期间的功能。 压力传感器检测燃油轨中的压力并提供信号。 燃料轨中的压力可以使用设定单元调节到设定点压力,并采用由压力传感器提供的信号。 提供以下用于测试燃料系统的方法:(a)建立待喷射的试验燃料量; (b)使用与其对应的第一设定点压力和第一启动周期以及要喷射的测试燃料量来操作内燃机; (c)检测表征操作状态的速度或扭矩因变量; (d)使用与其对应的第二设定点压力和第二激活时段以及要喷射的测试燃料量来操作内燃机; (e)检测表征所述操作状态的速度或扭矩因变量; (f)如果(c)和(e)中检测到的变量超过限制值,则执行一个动作。
    • 6. 发明授权
    • Method for operating a fuel system
    • 燃油系统运行方法
    • US07991538B2
    • 2011-08-02
    • US12340114
    • 2008-12-19
    • Stephan OlbrichRainer PeckChristian KriechbaumMichael SchenkSteffen Meyer-SalfeldRene ZieherMarkus Viereck
    • Stephan OlbrichRainer PeckChristian KriechbaumMichael SchenkSteffen Meyer-SalfeldRene ZieherMarkus Viereck
    • G06F19/00F02M51/00
    • F02D41/3836F02D41/222F02D2041/223
    • In a fuel system of an internal combustion engine, the fuel quantity injected into a combustion chamber is a function of an activation period, during which a fuel injection device is activated. A pressure sensor detects the pressure in the fuel rail and provides a signal. The pressure in the fuel rail may be regulated to a setpoint pressure using a setting unit and employing the signal provided by the pressure sensor. The following method is provided for testing the fuel system: (a) establishing a test fuel quantity to be injected; (b) operating the internal combustion engine using a first setpoint pressure and a first activation period corresponding thereto and to the test fuel quantity to be injected; (c) detecting a speed- or torque-dependent variable characterizing the operating state; (d) operating the internal combustion engine using a second setpoint pressure and a second activation period corresponding thereto and to the test fuel quantity to be injected; (e) detecting a speed- or torque-dependent variable characterizing the operating state; (f) implementing an action if the variables detected in (c) and (e) differ by more than a limit value.
    • 在内燃机的燃料系统中,喷射到燃烧室中的燃料量是激活燃料喷射装置的激活期间的功能。 压力传感器检测燃油轨中的压力并提供信号。 燃料轨中的压力可以使用设定单元调节到设定点压力,并采用由压力传感器提供的信号。 提供以下用于测试燃料系统的方法:(a)建立待喷射的试验燃料量; (b)使用与其对应的第一设定点压力和第一启动周期以及要喷射的测试燃料量来操作内燃机; (c)检测表征操作状态的速度或扭矩因变量; (d)使用与其对应的第二设定点压力和第二激活时段以及要喷射的测试燃料量来操作内燃机; (e)检测表征所述操作状态的速度或扭矩因变量; (f)如果(c)和(e)中检测到的变量超过限制值,则执行一个动作。