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1.发明授权
公开(公告)号：US5634868A
公开(公告)日：1997-06-03
申请号：US481005
申请日：1995-06-07
申请人： Gregory T. Weber , Christopher P. Thomas , Kenneth P. DeGroot , Gerald R. Honkanen , Thomas A. Larson
发明人： Gregory T. Weber , Christopher P. Thomas , Kenneth P. DeGroot , Gerald R. Honkanen , Thomas A. Larson
CPC分类号： F02P5/1506 , Y02T10/46 , Y10T477/675
摘要： A method for advanced crank spark with blend spark retard for an internal combustion engine includes the steps of selecting whether a spark in an engine cylinder will be fired on a predetermined first or second crank edge during an engine start mode, firing the spark on the second crank edge during the engine start mode if the second crank edge is selected, firing the spark on the first crank edge if the first crank edge is selected, determining whether the internal combustion engine is in the engine start mode based on engine speed, continuing to select whether to fire the spark on the predetermined first crank edge or the predetermined second crank edge if the internal combustion engine is in the engine start mode based on engine speed less than the predetermined speed, and retarding the spark from a first spark level to a hold start level at a predetermined rate, holding the spark at the hold spark level for a hold period, and advancing the spark to the first spark level at the predetermined rate, if the internal combustion engine is in the engine start mode based on engine speed greater than the predetermined speed.
摘要翻译： 一种用于内燃机的混合火花塞的高级曲柄火花的方法包括以下步骤：在发动机起动模式期间选择发动机气缸中的火花是否将在预定的第一或第二曲柄边缘上被点火，在第二 如果选择第二曲柄边缘，则在发动机起动模式期间的曲柄边缘，如果选择了第一曲柄边缘，则在第一曲柄边缘上点燃火花，基于发动机转速确定内燃机是否处于发动机起动模式，继续 如果内燃机基于小于预定速度的发动机转速处于发动机起动模式，则选择是否在预定的第一曲柄边缘或预定的第二曲柄边缘上点燃火花，并且将火花从第一火花等级延迟到 以预定速率保持起始电平，将保持火花等级的火花保持一段保持期，并将火花推进到第一火花点 如果内燃机基于大于预定速度的发动机速度处于发动机起动模式，则为最终速率。
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公开(公告)号：US06237580B1
公开(公告)日：2001-05-29
申请号：US09377320
申请日：1999-08-19
IPC分类号： F02B7508
CPC分类号： F02D41/1498 , F02D41/0035 , F02D41/068 , F02D2200/1015
摘要： A fuel control system is provided for enhancing the fueling strategy of a vehicle at start up when fueling is being supplemented with purge vapors from the fuel tank. The system includes monitoring the purge vapor flow rate from the purge vapor control system to the engine at start-up. A dynamic crankshaft fuel control fuel multiplier is then calculated based on engine roughness. If the engine is operating rough during purge vapor fueling, the amount of injected fuel is adjusted according to the fuel multiplier. Once oxygen sensor feedback is available, the dynamic crankshaft fuel control fuel multiplier is recalculated based on the oxygen sensor goal voltage. If necessary, the amount of injected fuel may be readjusted with the updated fuel multiplier. Once the engine is warm, the purge vapor fueling stops and the present methodology ends.
摘要翻译： 提供一种燃料控制系统，用于当燃料补充有来自燃料箱的吹扫蒸气时，在启动时增强车辆的燃料加注策略。 该系统包括在启动时监测从吹扫蒸气控制系统到发动机的净化蒸汽流量。 然后基于发动机粗糙度计算动态曲轴燃料控制燃料倍增器。 如果发动机在净化蒸汽加油过程中运转粗糙，则根据燃油倍增器调节喷油量。 一旦氧传感器反馈可用，基于氧传感器目标电压重新计算动态曲轴燃料控制燃料倍增器。 如果需要，可以用更新的燃料倍增器重新调节注入燃料的量。 一旦发动机暖气，清洗蒸汽加油停止，本方法结束。
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3.发明授权Fuel multiplier transfer from dynamic crankshaft fueling control to oxygen sensor operation 有权燃油倍增器从动态曲轴加油控制转移到氧气传感器运行
公开(公告)号：US06085734A
公开(公告)日：2000-07-11
申请号：US211939
申请日：1998-12-15
IPC分类号： F02D41/14
CPC分类号： F02D41/1498 , F02D41/1479 , F02D2200/1015 , F02D41/1456
摘要： A method is provided for controlling the delivery of fuel to an engine of an automotive vehicle equipped with a dynamic crankshaft fuel control system and an oxygen sensor feedback based fuel control system. The method includes determining an averaged combustion metric from the dynamic crankshaft fuel control system. The combustion metric is compared to an allowable engine roughness value and a dynamic crankshaft fuel control fuel multiplier is adjusted based on the comparison via a proportional-integral-derivative control calculation. Thereafter, the integral term of the dynamic crankshaft fuel control system's proportional-integral-derivative control calculation is stored. If it is time to switch fuel control from the dynamic crankshaft fuel control system to the oxygen sensor feedback fuel control system, the stored integral term of the dynamic crankshaft fuel control system's fueling multiplier is transferred to the proportional-integral-derivative calculation of the oxygen sensor feedback fuel control system. As such, the last integral term used in determining the fuel multiplier of the dynamic crankshaft fuel control system is used as the first integral term determining the fuel multiplier of in the oxygen sensor feedback fuel control system. As such, the transition from one fuel control system to the other is smoothed.
摘要翻译： 提供了一种用于控制燃料输送到配备有动态曲轴燃料控制系统和基于氧传感器反馈的燃料控制系统的机动车辆的发动机的方法。 该方法包括从动态曲轴燃料控制系统确定平均燃烧度量。 将燃烧度与允许的发动机粗糙度值进行比较，并且通过比例积分微分控制计算基于比较来调整动态曲轴燃料控制燃料倍增器。 此后，存储动态曲轴燃料控制系统的比例 - 积分 - 微分控制计算的积分项。 如果现在是将燃料控制从动态曲轴燃料控制系统切换到氧传感器反馈燃料控制系统的时候，动态曲轴燃料控制系统的加油乘数的存储积分项被转移到氧的比例积分微分计算 传感器反馈燃油控制系统。 因此，用于确定动态曲轴燃料控制系统的燃料倍增器的最后一个整数项用作确定氧传感器反馈燃料控制系统中的燃料倍增器的第一积分项。 因此，从一个燃料控制系统到另一个燃料控制系统的过渡是平滑的。
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4.发明授权
公开(公告)号：US5809969A
公开(公告)日：1998-09-22
申请号：US901859
申请日：1997-07-29
CPC分类号： F02D41/008 , F02D41/064 , F02D41/1498 , F02D41/2451 , F02D41/2454 , F02D2041/1409 , F02D2041/1432 , F02D2200/1015 , F02D2250/21 , F02D41/0097
摘要： A methodology of computing a learned combustion stability value and applying the learned combustion stability value to control engine operation is provided. Engine speed is sensed for each expected firing of individual cylinders of the engine. The difference in engine speed for a selected cylinder firing and a cylinder firing occurring two cylinder firings earlier is determined to provide an expected acceleration value. The difference between successive expected acceleration values is computed. A learned combustion related value is determined as a function of the difference in the successive learned acceleration values and is an indication of engine roughness. The operation of the engine is controlled as a function of the learned combustion related value. The learned combustion stability value is advantageously employed so as to modify the fuel injection to an internal combustion engine, especially following a cold engine start so as to reduce hydrocarbon emissions. This is accomplished by modifying a program target fuel injection value as a function of the learned combustion related value so as to reduce the fuel injected into the engine by fuel injectors.
摘要翻译： 提供了一种计算学习的燃烧稳定性值并应用学习的燃烧稳定性值来控制发动机操作的方法。 针对发动机的各个气缸的每个预期的发射感测发动机速度。 确定所选择的气缸点火和发生两缸发动的气缸点火的发动机速度差异以提供预期的加速度值。 计算连续预期加速度值之间的差异。 学习的燃烧相关值被确定为连续学习加速度值中的差的函数，并且是发动机粗糙度的指示。 发动机的操作作为燃烧相关值的函数进行控制。 有利地采用学习的燃烧稳定性值，以便改变对内燃机的燃料喷射，特别是在冷发动机启动之后，以减少碳氢化合物排放。 这是通过根据学习的燃烧相关值修改程序目标燃料喷射值来实现的，以便减少由燃料喷射器喷射到发动机中的燃料。
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5.发明授权
公开(公告)号：US5542390A
公开(公告)日：1996-08-06
申请号：US380165
申请日：1995-01-30
CPC分类号： F02P5/1516 , F02D41/0072 , F02M26/53 , F02P5/045 , F02D2200/703 , F02M26/57 , Y02T10/46 , Y02T10/47
摘要： A method of altitude compensation of exhaust gas recirculation in an intake manifold for an internal combustion engine includes the steps of calculating vacuum at sea level, calculating vacuum at present altitude of the engine, determining whether the calculated vacuum at sea level is equal to the calculated vacuum at present altitude, and correcting the exhaust gas recirculation in the intake manifold if the calculated vacuum at sea level does not equal the calculated vacuum at present altitude.
摘要翻译： 用于内燃机的进气歧管中的排气再循环的高度补偿方法包括以下步骤：计算海平面的真空度，计算发动机的当前高度的真空度，确定计算出的海平面真空度是否等于计算出的 如果海平面上计算出的真空度不等于目前高度处的计算真空度，则在目前的高度处真空，并且校正进气歧管中的排气再循环。
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6.发明授权Method of estimating exhaust gas recirculation in an intake manifold for an internal combustion engine 失效用于内燃机的进气歧管中的废气再循环的估计方法
公开(公告)号：US5537977A
公开(公告)日：1996-07-23
申请号：US380865
申请日：1995-01-30
CPC分类号： F02P5/1516 , Y02T10/46
摘要： A method of estimating exhaust gas recirculation in an intake manifold for an internal combustion engine includes the steps of determining a volumetric efficiency value of the intake manifold, determining whether a speed of the engine is accelerating, getting a manifold unfilling constant if the speed of the engine is not accelerating, getting a manifold filling constant if the speed of the engine is accelerating, calculating a K-factor based on the volumetric efficiency value and either the manifold filling constant or manifold unfilling constant, and using the K-factor to modify spark of the engine.
摘要翻译： 一种用于估计用于内燃机的进气歧管中的废气再循环的方法包括以下步骤：确定进气歧管的体积效率值，确定发动机的速度是否正在加速，如果速度为 发动机不加速，如果发动机的速度加速，总体填充常数，基于体积效率值和歧管填充常数或歧管不足常数计算K因子，并使用K因子修改火花 的发动机。
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7.发明授权Method of load and speed modifying on fuel lean-out for internal combustion engines 失效用于内燃机燃料稀释的负荷和速度修正方法
公开(公告)号：US5469826A
公开(公告)日：1995-11-28
申请号：US238122
申请日：1994-05-04
IPC分类号： F02D41/12
CPC分类号： F02D41/12
摘要： A method of load and speed modifying on fuel lean-out for an internal combustion engine includes the steps of sensing a speed of the engine, determining an engine speed modifier as a function of current sensed engine speed, sensing a manifold absolute pressure (MAP) of an intake manifold of the engine, determining an engine load modifier as a function of current sensed MAP, adding the determined engine speed modifier and engine load modifier together to yield a speed/load modifier, and applying the speed/load modifier value to a fuel pulsewidth value of fuel injectors for the engine and reducing the amount of fuel injected into the engine by the fuel injectors.
摘要翻译： 一种用于内燃机的燃料稀释的负载和速度修正方法包括以下步骤：感测发动机的速度，确定作为当前感测到的发动机转速的函数的发动机转速调节器，感测歧管绝对压力（MAP） 的发动机的进气歧管，确定作为电流感测MAP的函数的发动机负载修正器，将所确定的发动机转速调节器和发动机负载调节器相加，以产生速度/负载修正器，并将速度/负载修正值应用于 用于发动机的燃料喷射器的燃料脉冲宽度值并且减少由燃料喷射器喷射到发动机中的燃料量。
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公开(公告)号：US5427071A
公开(公告)日：1995-06-27
申请号：US238092
申请日：1994-05-04
IPC分类号： F02D41/12
CPC分类号： F02D41/12
摘要： A method of catalyst purging (run-time) fuel lean-out for an internal combustion engine including the steps of determining whether the engine is in a throttle deceleration condition or a MAP deceleration condition, sensing a speed of the engine, determining whether the current sensed engine speed is above a predetermined speed if the engine is in a throttle or MAP deceleration condition, determining a magnitude of a run-time lean-out multiplier (RTLEAN) value if the current sensed engine speed is above the predetermined speed, and applying the determined RTLEAN value to a fuel pulsewidth value of fuel injectors for the engine and reducing the amount of fuel injected into the engine by the fuel injectors.
摘要翻译： 一种用于内燃机的催化剂清洗（运行时）燃料稀薄的方法，包括以下步骤：确定发动机是处于节气门减速状态还是MAP减速条件，感测发动机的速度，确定是否有电流 如果发动机处于节气门或MAP减速状态，则感测到的发动机转速高于预定速度，如果当前检测到的发动机转速高于预定速度，则确定运行时间偏差乘数（RTLEAN）值的大小，并且应用 将确定的RTLEAN值设定为用于发动机的燃料喷射器的燃料脉冲宽度值，并且减少由燃料喷射器喷射到发动机中的燃料量。
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公开(公告)号：US5427070A
公开(公告)日：1995-06-27
申请号：US238093
申请日：1994-05-04
CPC分类号： F02D41/28 , F02D41/047 , F02D41/06
摘要： A method of averaging coolant temperature for an internal combustion engine in an automotive vehicle includes the steps of sensing coolant temperature of the engine based on an output signal of a coolant temperature sensor, determining an initial value of coolant temperature based on the output signal from the coolant temperature sensor, storing the determined initial value as an initial coolant temperature value (CLTMP1) and as an averaged coolant temperature value (AVCT), periodically updating the AVCT value, and using the AVCT value to control the output of fuel injectors of the engine.
摘要翻译： 一种用于机动车辆中的内燃机的冷却剂温度平均的方法包括以下步骤：基于冷却剂温度传感器的输出信号检测发动机的冷却剂温度;基于来自所述冷却剂温度传感器的输出信号确定冷却剂温度的初始值; 冷却剂温度传感器，将确定的初始值作为初始冷却剂温度值（CLTMP1）存储，并且作为平均冷却剂温度值（AVCT），周期性地更新AVCT值，并且使用AVCT值来控制发动机的燃料喷射器的输出 。
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10.发明授权
公开(公告)号：US5701865A
公开(公告)日：1997-12-30
申请号：US639865
申请日：1996-04-26
申请人： Christopher P. Thomas , Jay C. McCombie , Gregory T. Weber , Jeffery C. Ehlers , Dennis A. Soltis
发明人： Christopher P. Thomas , Jay C. McCombie , Gregory T. Weber , Jeffery C. Ehlers , Dennis A. Soltis
CPC分类号： F02P5/1508 , Y02T10/46
摘要： A method of adjusting idle spark for an individual cylinder of an internal combustion engine in an automotive vehicle including the steps of determining a crankshaft acceleration for an individual cylinder of the internal combustion engine and determining an average acceleration error for the individual cylinder based on the determined crankshaft acceleration. The method also includes the steps of determining an adaptive spark advance for the individual cylinder based on the determined average acceleration error and determining a new spark advance for the individual cylinder based on the determined adaptive spark advance and a nominal spark advance. The method further includes the steps of adjusting idle spark for the individual cylinder based on the new spark advance for the individual cylinder.
摘要翻译： 一种调节机动车辆内燃机的单个气缸的空闲火花的方法，包括以下步骤：确定内燃机的各个气缸的曲轴加速度，并基于所确定的各个气缸来确定各气缸的平均加速误差 曲轴加速度。 该方法还包括以下步骤：基于所确定的平均加速度误差确定各个气缸的自适应火花提前，并且基于所确定的自适应火花提前和标称火花提前来确定单个气缸的新的火花提前。 该方法还包括基于各个气缸的新的火花提前来调节各个气缸的空闲火花的步骤。
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