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公开(公告)号：US06345224B1
公开(公告)日：2002-02-05
申请号：US09532070
申请日：2000-03-21
IPC分类号： F16A354
CPC分类号： B60T7/12 , B60K17/34 , B60W30/09 , B60W40/09 , B60W2540/06
摘要： A method of initiating a neutral tow feature in a four-wheel drive vehicle. To initiate the neutral tow feature, an input signal is received from at least one signal generating device. Thereafter, it is determined if the at least one signal indicates that a precondition has been met. If the precondition has been met, then the neutral tow feature is automatically engaged.
摘要翻译： 一种在四轮驱动车辆中启动中性丝束特征的方法。 为了启动中立丝束特征，从至少一个信号发生装置接收输入信号。 此后，确定该至少一个信号是否指示已经满足前提条件。 如果满足前提条件，则中性丝束功能自动进入。
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2.发明授权Fuel control method and system with on-line learning of open-loop fuel compensation parameters 失效具有在线学习开环燃油补偿参数的燃油控制方法和系统
公开(公告)号：US5743244A
公开(公告)日：1998-04-28
申请号：US751291
申请日：1996-11-18
CPC分类号： F02D41/047 , F02D41/1402 , F02D41/2458 , F02D2041/141 , F02D2041/1433
摘要： A method and system for fuel delivery to an engine (400) measures when an exhaust gas sensor (413) is in a non-lit-off condition and when the exhaust gas sensor is in a lit-off condition. A control device (409) estimates fuel puddle dynamics for an intake system of the engine when the exhaust gas sensor is in the lit-off condition, and adapts (511) an open-loop fuel parameter table (229) dependent on the estimated fuel puddle dynamics. The control device (409) adjusts fuel delivery to the engine dependent on the fuel puddle dynamics when the exhaust gas sensor is in the lit-off condition, and adjusts fuel delivery to the engine dependent on the open-loop fuel parameter table (229) when the exhaust gas sensor is in the non-lit-off condition.
摘要翻译： 一种用于向发动机（400）输送燃料的方法和系统，当废气传感器（413）处于非点灯状态和排气传感器处于点火状态时，测量。 当排气传感器处于点火状态时，控制装置（409）估计用于发动机的进气系统的燃料水池动力学，并且根据估计的燃料适应（511）开环燃料参数表（229） 水坑动力学 当废气传感器处于点火状态时，控制装置（409）根据燃料水坑动力学来调节向发动机的燃料输送，并且根据开环燃料参数表（229）调节向发动机的燃料输送， 当排气传感器处于非点亮状态时。
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3.发明授权Method for controlling the level of oxygen stored by a catalyst within a catalytic converter 失效控制催化转化器内催化剂储存的氧含量的方法
公开(公告)号：US5842340A
公开(公告)日：1998-12-01
申请号：US806179
申请日：1997-02-26
CPC分类号： F02D41/0295 , F01N11/007 , F02D41/1441 , F02D41/1475 , F01N2550/02 , F01N2900/0422 , F02D2200/0814 , Y02T10/47
摘要： The catalyst control method of the invention continuously estimates a level of oxygen stored by a catalyst within a catalytic converter. The estimated oxygen stored by the catalyst is compared to a predetermined threshold and positive or negative deviations in the oxygen amount from the threshold is determined. When a positive deviation from the threshold amount is detected, the air/fuel ratio flowing into an engine (16) is decreased. Correspondingly, when a negative deviation is detected, the air/fuel ratio flowing into the engine (16) is increased. The amount of oxygen stored by the catalyst is determined by analyzing signals from a first gas sensor (28) positioned upstream from a catalytic converter (34) and a second gas sensor (30) positioned downstream from the catalytic converter (34). An engine control unit (10) integrates an expression for the mass flow rate of excess oxygen into the catalytic converter (34). Engine control unit (10) applies a change in air/fuel ratio to maintain the oxygen level on the catalyst within the catalytic converter (34) at a desired level.
摘要翻译： 本发明的催化剂控制方法连续地估计催化转化器内催化剂储存的氧含量。 将由催化剂储存的估计氧气与预定阈值进行比较，并确定氧气量与阈值的正或负偏差。 当检测到与阈值量的正偏差时，流入发动机（16）的空气/燃料比减少。 相应地，当检测到负偏差时，流入发动机（16）的空气/燃料比增加。 通过分析来自位于催化转化器（34）上游的第一气体传感器（28）和位于催化转化器（34）下游的第二气体传感器（30）的信号来确定催化剂存储的氧气的量。 发动机控制单元（10）将过量氧气质量流量的表达式集成到催化转化器（34）中。 发动机控制单元（10）施加空燃比的变化，以将催化转化器（34）内的催化剂上的氧气水平维持在期望的水平。
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4.发明授权Method for monitoring the performance of a catalytic converter using post catalyst methane measurements 失效使用后催化剂甲烷测量监测催化转化器性能的方法
公开(公告)号：US5839274A
公开(公告)日：1998-11-24
申请号：US837629
申请日：1997-04-21
CPC分类号： F01N11/00 , F02D41/0295 , F01N2550/02 , F01N2560/023 , F02D2200/0814 , F02D2200/0816 , Y02T10/47
摘要： A method for monitoring and controlling the performance of a catalytic converter (34) includes monitoring an exhaust gas stream from an engine (16) for the presence of methane. Upon detecting methane in the exhaust gas stream an oxygen storage level of a catalyst within the catalytic converter (34) is determined. The oxygen storage level is compared with a reference standard and the air/fuel ratio of the exhaust gas stream is continuously adjusted to maintain the oxygen storage level within predetermined control limits.
摘要翻译： 用于监测和控制催化转化器（34）的性能的方法包括监测来自用于存在甲烷的发动机（16）的排气流。 在检测废气流中的甲烷时，确定催化转化器（34）内的催化剂的储氧量。 将氧气存储量与参考标准进行比较，并且连续调节排气流的空气/燃料比以将氧气存储量保持在预定的控制限度内。
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公开(公告)号：US5819714A
公开(公告)日：1998-10-13
申请号：US636729
申请日：1996-04-19
CPC分类号： F02D41/1402 , F02D41/047 , F02D2041/141 , F02D2041/1415 , F02D2041/1417 , F02D2041/1418 , F02D2041/1433 , F02D2041/1434 , F02D41/1406
摘要： A method and system for adaptive transient fuel compensation in a cylinder of a multi-cylinder engine estimates fuel puddle dynamics for the cylinder by determining parameters of a wall-wetting model every engine cycle of the multi-cylinder engine. Fuel delivery to the cylinder is adjusted dependent on the estimated fuel puddle dynamics.
摘要翻译： 在多缸发动机的气缸中的自适应瞬态燃料补偿的方法和系统通过确定多气缸发动机的每个发动机循环的壁湿润模型的参数来估计气缸的燃料水池动力学。 根据估计的燃料水坑动力学来调整向气缸的燃料输送。
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6.发明授权
公开(公告)号：US5762054A
公开(公告)日：1998-06-09
申请号：US713577
申请日：1996-09-13
CPC分类号： F02D41/047
摘要： A method and system for adaptive transient fuel compensation in an engine (300) estimates fuel puddle dynamics for a cylinder in an engine by determining parameters of a wall-wetting model on every engine cycle by measuring a temporal delay (407) between when an identification fuel charge is injected (405) and when a binary-type exhaust gas oxygen sensor (213) switches state. Fuel delivery to the cylinder is adjusted (417) dependent on the estimated fuel puddle dynamics which are a function of the measured temporal delay (407).
摘要翻译： 发动机（300）中的自适应瞬态燃料补偿的方法和系统通过在每个发动机循环之间确定一个时间延迟（407）来确定每个发动机循环之间的时间延迟（407）来估计发动机中汽缸的燃料水池动力学 喷射燃料（405），二进制型排气氧传感器（213）切换状态。 根据作为测量的时间延迟的函数的估计燃料水坑动力学（407），调节到气缸的燃料输送（417）。
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7.发明授权EGO based adaptive transient fuel compensation for a spark ignited engine 失效用于火花点火发动机的基于EGO的自适应瞬态燃料补偿
公开(公告)号：US5690087A
公开(公告)日：1997-11-25
申请号：US713914
申请日：1996-09-13
CPC分类号： F02D41/047
摘要： A method and system for adaptive transient fuel compensation in a cylinder of an engine (300) estimates a fraction of fuel evaporated in a fuel intake system of the engine (b.sub.v) by measuring a temporal delay (515) between when an identification fuel charge is injected (505) and when a binary-type exhaust gas oxygen sensor (315) switches state. An estimate of a fraction of fuel adhering to the fuel intake system of the engine (c) is derived from the estimate of evaporation wall-wetting parameter (b.sub.v). Fuel delivery to the engine is adjusted dependent on the estimates of the adhering wall-wetting parameter (c) and the evaporation wall-wetting parameter (b.sub.v).
摘要翻译： 用于发动机（300）的气缸中的自适应瞬态燃料补偿的方法和系统通过测量时间延迟（515）来估计在发动机的燃料进气系统（+ E，cir b + EE v）中蒸发的燃料的一部分， （505）和二进制型排气氧传感器（315）切换状态之间。 对发动机燃油进气系统（+ E，cir c + EE）附着的一部分燃料的估计来自于蒸发壁湿润参数（bv）的估算值。 根据粘附壁湿润参数（c）和蒸发壁湿润参数（bv）的估计值，调整发动机的燃油输送。
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公开(公告)号：US5642722A
公开(公告)日：1997-07-01
申请号：US550442
申请日：1995-10-30
CPC分类号： F02D41/1402 , F02D41/047 , F02D2041/141 , F02D2041/1415 , F02D2041/1417 , F02D2041/1418 , F02D2041/1433 , F02D2041/1434 , F02D41/1406
摘要： A method and system for adaptive transient fuel compensation in a cylinder of a multi-cylinder engine estimates fuel puddle dynamics for the cylinder by determining parameters of a wall-wetting model every engine cycle of the multi-cylinder engine. Fuel delivery to the cylinder is adjusted dependent on the estimated fuel puddle dynamics.
摘要翻译： 在多缸发动机的气缸中的自适应瞬态燃料补偿的方法和系统通过确定多气缸发动机的每个发动机循环的壁湿润模型的参数来估计气缸的燃料水池动力学。 根据估计的燃料水坑动力学来调整向气缸的燃料输送。
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