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    • 4. 发明授权
    • System for controlling air-fuel ratio during intake control device transitions
    • 在进气控制装置过渡期间控制空燃比的系统
    • US06571771B2
    • 2003-06-03
    • US09866341
    • 2001-05-25
    • Jeffrey Allen DoeringGiuseppe D. SuffrediniJon Walter HalversonMark Thomas LinenbergPaul Charles MingoRalph Wayne Cunningham
    • Jeffrey Allen DoeringGiuseppe D. SuffrediniJon Walter HalversonMark Thomas LinenbergPaul Charles MingoRalph Wayne Cunningham
    • F02M5100
    • F02D41/047F02M26/46
    • A method and system for controlling the fuel mass to be delivered to an individual cylinder of an internal combustion engine during engine transients caused by intake control device transitions. The method and system compensates for fuel transport dynamics and the actual fuel injected into the cylinder. A plurality of engine parameters are sensed, including cylinder air charge. An initial base desired fuel mass is determined based on the plurality of engine parameters. An initial transient fuel mass is also determined based on prior injection history which, in turn, is modified based on the transition of the intake control device for that cylinder. A desired injected fuel mass to be delivered to the cylinder is determined based on the initial base desired fuel mass and the initial transient fuel mass. These same calculations are then used to compensate for changes to the base desired fuel mass while the fuel injection is in progress, resulting in an updated desired injected fuel mass. Finally, the injection history for that cylinder is updated to account for the actual desired fuel mass delivered to the cylinder.
    • 一种用于控制在由进气控制装置转换引起的发动机瞬变期间将燃料质量输送到内燃机的单个气缸的方法和系统。 该方法和系统补偿燃料输送动力学和注入气缸的实际燃料。 感测到多个发动机参数,包括气缸空气充注。 基于多个发动机参数确定初始基本所需燃料质量。 初始瞬态燃料质量也是基于先前的喷射历史来确定的,而先前的喷射历程又是基于该气缸的进气控制装置的转变而改变的。 基于初始基本期望燃料质量和初始瞬态燃料质量确定要输送到气缸的期望喷射燃料质量。 然后使用这些相同的计算来补偿在燃料喷射进行期间对基本所需燃料质量的变化,导致更新的所需喷射燃料质量。 最后,更新该气缸的喷射历史,以解释输送到气缸的实际所需燃料质量。
    • 6. 发明授权
    • System for controlling air-fuel ratio during intake control device transitions
    • 在进气控制装置过渡期间控制空燃比的系统
    • US06257206B1
    • 2001-07-10
    • US09496540
    • 2000-02-02
    • Jeffrey Allen DoeringGiuseppe D. SuffrediniJon Walter HalversonMark Thomas LinenbergPaul Charles MingoRalph Wayne Cunningham
    • Jeffrey Allen DoeringGiuseppe D. SuffrediniJon Walter HalversonMark Thomas LinenbergPaul Charles MingoRalph Wayne Cunningham
    • F02M5100
    • F02D41/047F02M26/46
    • A method and system for controlling the fuel mass to be delivered to an individual cylinder of an internal combustion engine during engine transients caused by intake control device transitions. The method and system compensates for fuel transport dynamics and the actual fuel injected into the cylinder. A plurality of engine parameters are sensed, including cylinder air charge. An initial base desired fuel mass is determined based on the plurality of engine parameters. An initial transient fuel mass is also determined based on prior injection history which, in turn, is modified based on the transition of the intake control device for that cylinder. A desired injected fuel mass to be delivered to the cylinder is determined based on the initial base desired fuel mass and the initial transient fuel mass. These same calculations are then used to compensate for changes to the base desired fuel mass while the fuel injection is in progress, resulting in an updated desired injected fuel mass. Finally, the injection history for that cylinder is updated to account for the actual desired fuel mass delivered to the cylinder.
    • 一种用于控制在由进气控制装置转换引起的发动机瞬变期间将燃料质量输送到内燃机的单个气缸的方法和系统。 该方法和系统补偿燃料输送动力学和注入气缸的实际燃料。 感测到多个发动机参数,包括气缸空气充注。 基于多个发动机参数确定初始基本所需燃料质量。 初始瞬态燃料质量也是基于先前的喷射历史来确定的,而先前的喷射历程又是基于该气缸的进气控制装置的转变而改变的。 基于初始基本期望燃料质量和初始瞬态燃料质量确定要输送到气缸的期望喷射燃料质量。 然后使用这些相同的计算来补偿在燃料喷射进行期间对基本所需燃料质量的变化,导致更新的所需喷射燃料质量。 最后,更新该气缸的喷射历史,以解释输送到气缸的实际所需燃料质量。
    • 7. 发明授权
    • Method of estimating engine charge
    • 估计发动机充气的方法
    • US6115664A
    • 2000-09-05
    • US232297
    • 1999-01-15
    • Michael John CullenGiuseppe D. Suffredini
    • Michael John CullenGiuseppe D. Suffredini
    • F02D41/00F02D41/18G01F1/86
    • F02D41/18F02D2200/0402F02D41/0072
    • Method of estimating the total charge to cylinders (123) of an internal combustion (105) engine where the total charge comprises the sum of the air charge and the EGR charge. The total charge is estimated by determining a linear total charge versus MAP reference function at selected engine speeds and at a preselected reference (stored) barometric pressure, reference (stored) engine coolant temperature, and reference (stored) manifold air charge temperature and determining a current barometric pressure value, a current engine coolant temperature value, and a current intake manifold air charge temperature. An intercept of the total charge versus MAP reference function with an total charge axis (e.g. Y-axis intercept) is adjusted for current barometric pressure different from the reference barometric pressure, and the slope of the total air charge versus MAP reference function is adjusted for current engine coolant temperature and current manifold air charge temperature different from the reference engine coolant temperature value and the reference manifold air charge temperature value. An adjusted total charge is determined by engine control logic based on the adjusted intercept and the adjusted slope of the function. An estimated EGR charge can be subtracted the adjusted total charge to estimate air mass flow rate entering the engine cylinders.
    • 估计对内燃(105)发动机的汽缸(123)的总电荷的方法,其中总电荷包括空气充量和EGR充电的总和。 通过在选择的发动机速度和预选的参考(储存)大气压力,参考(储存的)发动机冷却剂温度和参考(存储)歧管空气充气温度下确定线性总电荷与MAP参考功能,并且确定 当前大气压力值,当前发动机冷却液温度值和当前进气歧管充气温度。 对于与参考气压不同的当前大气压力,调整总电荷与MAP参考功能与总充电轴(例如Y轴截距)的截距,并调整总空气电荷对MAP参考功能的斜率,以调整 当前发动机冷却液温度和电流歧管空气充气温度不同于参考发动机冷却液温度值和参考歧管空气充气温度值。 调整后的总电荷由发动机控制逻辑根据调整的截距和功能的调整斜率确定。 估计的EGR充电可以减去调整后的总电荷以估计进入发动机气缸的空气质量流量。