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    • 1. 发明授权
    • System for estimating auxiliary-injected fueling quantities
    • 用于估计辅助喷射加油量的系统
    • US06823834B2
    • 2004-11-30
    • US10417829
    • 2003-04-17
    • Donald J. BensonTaner TukenDavid M. CareyJohn T. Carroll, IIIYul J. Tarr
    • Donald J. BensonTaner TukenDavid M. CareyJohn T. Carroll, IIIYul J. Tarr
    • F02B300
    • F02D41/22F02D41/2496F02D41/3809F02D41/40F02D2041/224F02D2041/227F02D2200/0612F02D2200/0616Y02T10/44
    • A system for estimating an auxiliary-injected fuel quantity includes a fuel injector for injecting fuel into an engine, a fuel pump supplying fuel to a fuel collection unit that then supplies fuel to the fuel injector, and a control circuit that generates an auxiliary-injected fuel quantity estimation model by disabling the fuel pump prior to fuel injection, and enabling the fuel pump to resume fuel pumping following fuel injection, by the fuel injector, determines a first pressure in the fuel collection unit after stabilization of the fuel pressure therein following disablement of the fuel pump and prior to the fuel injection, determines a second pressure in the fuel collection unit after the fuel injection and prior to resuming pumping of fuel by the fuel pump, and forms the model as a function of the first and second pressures and an injector on-time for a number of different engine operating conditions.
    • 用于估计辅助喷射燃料量的系统包括用于将燃料喷射到发动机中的燃料喷射器,向向燃料喷射器供应燃料的燃料收集单元供应燃料的燃料泵,以及产生辅助喷射的燃料的控制电路 燃料量估计模型,通过在燃料喷射之前禁用燃料泵,以及使得燃料泵能够通过燃料喷射器在燃料喷射之后恢复燃料泵送,在确定燃料收集单元中的燃料压力之后确定其中的第一压力 并且在燃料喷射之前确定燃料收集单元中的燃料喷射之后的第二压力,并且在由燃料泵重新启动燃料之前确定燃料收集单元中的第二压力,并且作为第一和第二压力的函数形成模型,并且 一个注射器在时间上为许多不同的发动机工作条件。
    • 6. 发明授权
    • Apparatus and method for determining engine static timing errors and overall system bandwidth
    • 用于确定发动机静态定时误差和整个系统带宽的装置和方法
    • US06353791B1
    • 2002-03-05
    • US09564776
    • 2000-05-04
    • Taner TukenDonald J. BensonJohn T. Carroll, III
    • Taner TukenDonald J. BensonJohn T. Carroll, III
    • F02M4512
    • F02D41/009F02D35/023F02D41/3809F02D2200/0602
    • A strategy for quantifying and compensating for between-engine variations in engine static timing, fuel pump phasing and overall system bandwidth includes a control circuit operable to manage a fuel control system including a high pressure, cyclically operable fuel pump and at least one fuel injector operable to supply fuel to an internal combustion engine from a fuel collection unit. In one embodiment, the strategy of the present invention is operable to determine peak values of the fuel pressure within fuel collection unit and corresponding engine position values for a number of different engine speeds and solve a corresponding model-based system of equations to determine a combined engine static timing and fuel pump phasing error as well as a first overall system bandwidth value. In another embodiment, the strategy of the present invention is operable to determine peak values of the pressure within a combustion chamber of the engine along with associated engine position values for a number of different engine speeds and solve for the engine static timing error alone and/or a second overall system bandwidth value. In yet another embodiment, the two foregoing strategies may be combined to produce separately the first and second bandwidth values as well as the individual engine static timing and fuel pump phasing error values. In any case, the computed error and bandwidth values may be used to improve the accuracy of sampled engine and/or fuel control system parameters as they relate to engine position.
    • 用于量化和补偿发动机静态定时,燃料泵相位和总体系统带宽之间的发动机间变化的策略包括控制电路,其可操作以管理燃料控制系统,该燃料控制系统包括高压循环可操作的燃料泵和至少一个燃料喷射器,其可操作 以从燃料收集单元向内燃机供应燃料。 在一个实施例中,本发明的策略可用于确定燃料收集单元内的燃料压力的峰值以及对于多个不同发动机转速的相应的发动机位置值,并且解决相应的基于模型的方程组以确定组合 发动机静态定时和燃油泵相位误差以及第一个整体系统带宽值。 在另一个实施例中,本发明的策略可用于确定发动机的燃烧室内的压力的峰值以及多个不同的发动机转速的相关联的发动机位置值,并且解决单独的发动机静态定时误差和/ 或第二个整体系统带宽值。 在另一个实施例中,可以组合两个前述策略以分别产生第一和第二带宽值以及各个发动机静态定时和燃料泵相位误差值。 在任何情况下,计算的误差和带宽值可用于提高与发动机位置有关的采样发动机和/或燃料控制系统参数的精度。
    • 7. 发明授权
    • Fuel control system including adaptive injected fuel quantity estimation
    • 燃油控制系统包括自适应喷油量估算
    • US06557530B1
    • 2003-05-06
    • US09565010
    • 2000-05-04
    • Donald J. BensonTaner TukenJohn T. Carroll, III
    • Donald J. BensonTaner TukenJohn T. Carroll, III
    • F02M5100
    • F02D41/22F02D41/2496F02D41/3809F02D41/40F02D2041/224F02D2041/227F02D2200/0612F02D2200/0616Y02T10/44
    • A fuel control system for an internal combustion engine including injected fuel quantity estimation includes a fuel pump responsive to a fuel pump command to supply fuel to a fuel collection unit. A pressure sensor is provided for producing a pressure signal indicative of the pressure of fuel within the collection unit throughout a fuel injection event, and an engine position sensor is provided for producing an engine position signal indicative of a crank angle of the engine relative to a reference crank angle. A control circuit includes means responsive to the pressure signal and a desired fueling value for producing an initial fueling command, and further includes a fuel quantity estimation block responsive to the pressure signal, the engine position signal and a final fueling command to produce a fuel quantity estimation value. The final fueling command is computed by the control circuit as a function of the initial fueling command and the fuel quantity adjustment value to which the injector is responsive to supply fuel to the combustion chamber.
    • 一种用于包括喷射燃料量估计的内燃机的燃料控制系统包括响应于燃料泵命令向燃料收集单元供应燃料的燃料泵。 提供压力传感器,用于在整个燃料喷射事件期间产生指示收集单元内的燃料压力的压力信号,并且提供发动机位置传感器,用于产生指示发动机相对于发动机的曲柄角的发动机位置信号 参考曲轴角度。 控制电路包括响应于压力信号的装置和用于产生初始加油命令的期望的加油值,并且还包括响应于压力信号,发动机位置信号和最终加油命令以产生燃料量的燃料量估计块 估计值。 最终加油命令由控制电路根据初始加油指令和喷油器响应于向燃烧室供应燃料的燃料量调节值计算。
    • 8. 发明授权
    • Method and apparatus for engine cylinder balancing using sensed engine
speed
    • 用于检测发动机转速的发动机气缸平衡的方法和装置
    • US6021758A
    • 2000-02-08
    • US979054
    • 1997-11-26
    • David M. CareyTaner Tuken
    • David M. CareyTaner Tuken
    • F02D41/00F02D41/14F02D41/34G01M15/04G01M15/11F02M51/00
    • G01M15/11F02D41/0085F02D41/1498G01M15/046F02D2041/288F02D41/0082F02D41/0097
    • Manufacturing/design imperfections and component failures in the fuel system/engine can lead to non-uniform torque production among the cylinders. Non-uniform cylinder torques can be observed as small engine speed fluctuations about the average engine speed at any given operating point. Severe imbalance conditions can be heard, felt, and seen by human operators. The present invention uses the fluctuations in engine speed to detect an unbalanced engine and attempts to correct the unbalance by applying trims to the fueling commands for each individual cylinder. The present invention is based on the calculation of a 6-point Fourier Transform (FFT) of engine speed data over one complete engine cycle. This FFT is calculated continuously to provide imbalance detection. An unbalanced engine results in non-zero magnitudes of the FFT components that correspond to the 0.5, 1.0, and 1.5 engine orders. The compensation scheme of the present invention uses iteration to drive the magnitudes of these components to zero if the engine is detected to be unbalanced.
    • 燃油系统/发动机的制造/设计缺陷和部件故障可导致气缸之间的扭矩产生不均匀。 在任何给定的工作点,可以观察到相对于平均发动机转速的小的发动机转速波动,可以观察到不均匀的气缸扭矩。 严重的不平衡状况可以被人类操作者听到,感受和看到。 本发明使用发动机转速的波动来检测不平衡的发动机,并尝试通过对每个单独气缸的加油指令施加修剪来校正不平衡。 本发明基于在一整个发动机循环中计算发动机转速数据的6点傅里叶变换(FFT)。 该FFT被连续计算以提供不平衡检测。 一个不平衡的引擎会导致对应于0.5,1.0和1.5发动机定单的FFT零件的非零幅度。 如果检测到发动机不平衡,则本发明的补偿方案使用迭代来将这些部件的大小驱动为零。