公开(公告)号：WO1998011339A1

公开(公告)日：1998-03-19

申请号：PCT/US1997012085

申请日：1997-07-14

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  SCHUMACHER, Darren, A. ,  BUSH, Kevin, J.

IPC: F02D41/10

CPC classification number: F02D41/047

Abstract: 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 bv 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 bv. Fuel delivery to the engine is adjusted dependent on the estimates of c and bv.

Abstract translation: 用于发动机（300）的气缸中的自适应瞬时燃料补偿的方法和系统通过测量喷射识别燃料电荷之间的时间延迟（515）来估计在发动机汽缸的燃料进入系统中蒸发的燃料的一部分（ 505），并且当二元型排气氧传感器（315）切换状态时。 对发动机c的燃料进气系统附着的燃料的一部分的估计来自bv的估计。 燃油输送到发动机的调整取决于c和bv的估计。

公开(公告)号：WO1998038416A1

公开(公告)日：1998-09-03

申请号：PCT/US1997023179

申请日：1997-12-04

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  BUSH, Kevin, J. ,  CHURCH, Bruce, A. ,  FRANKOWSKI, David ,  SCHUMACHER, Darren, A. ,  BADALAMENT, Michael

IPC: F01N03/00

CPC classification number: F02D41/0295 ,  F01N11/007 ,  F01N2550/02 ,  F01N2900/0422 ,  F02D41/1441 ,  F02D41/1475 ,  F02D2200/0814 ,  Y02T10/47

Abstract: 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.

Abstract translation: 本发明的催化剂控制方法连续地估计催化转化器内的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）将过量氧气的质量流量的表达式整合到催化转化器（34）中。 发动机控制单元（10）应用空燃比的变化，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。

公开(公告)号：WO1998011338A1

公开(公告)日：1998-03-19

申请号：PCT/US1997012122

申请日：1997-07-14

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  SCHUMACHER, Darren, A. ,  BUSH, Kevin, J.

IPC: F02D41/00

CPC classification number: F02D41/047

Abstract: A method and system for adaptive transient fuel compensation in an engine, which estimates fuel puddle dynamics for a cylinder in an engine by determining the parameters of a wall-wetting model at every engine cycle by measuring a temporal-delay (407) between the time at which an "identification" fuel charge is injected (405) and the time at which a binary-type exhaust gas oxygen sensor switches state. Fuel delivery to the cylinder is then adjusted (417) dependent upon the estimated fuel puddle dynamics which were determined as a function of the temporal delay (407).

Abstract translation: 一种用于发动机中的自适应瞬态燃料补偿的方法和系统，其通过在每个发动机循环中通过测量时间延迟（407）来确定每个发动机循环中的壁湿润模型的参数来估计发动机中的气缸的燃料水坑动力学 在其中注入“识别”燃料电荷（405）和二元型排气氧传感器切换状态的时间。 然后根据作为时间延迟的函数确定的估计的燃料水坑动力学来调整到气缸的燃料输送（417）（407）。

公开(公告)号：EP0665969B1

公开(公告)日：2001-03-21

申请号：EP94926506.0

申请日：1994-08-16

Applicant: MOTOROLA, INC.

Inventor： BUSH, Kevin, J. ,  DUA, Sanjayp ,  ADAMS, Neil, J. ,  MARKYVECH, Craig, R.

IPC: G06F19/00 ,  F02D41/14

CPC classification number: F02D41/008 ,  F02D41/0085 ,  F02D41/1401 ,  F02D41/1456 ,  F02D41/1473 ,  F02D41/1481 ,  F02D2041/1415 ,  F02D2041/1416 ,  F02D2041/1417 ,  F02D2041/1433 ,  G01M15/104

公开(公告)号：WO1998022704A1

公开(公告)日：1998-05-28

申请号：PCT/US1997018770

申请日：1997-10-15

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  BUSH, Kevin, J. ,  SCHUMACHER, Darren, A. ,  CHURCH, Bruce, A.

IPC: F02D41/00

CPC classification number: F02D41/047 ,  F02D41/1402 ,  F02D41/2458 ,  F02D2041/141 ,  F02D2041/1433

Abstract: 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 (413) 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 an open-loop fuel parameter table dependent upon the estimated fuel puddle dynamics. The control device (409) then 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 upon the open-loop fuel parameter table when the exhaust gas sensor is in the non-lit-off condition.

Abstract translation: 当排气传感器（413）处于非点灯状态和排气传感器（413）处于点火状态时，用于向发动机（400）输送燃料的方法和系统测量。 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坑动力学，并且根据估计的燃料水泥动力学来适应开环燃料参数表。 然后，当排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，并根据开环燃料参数表来调节向发动机的燃料输送，当排气 气体传感器处于非点亮状态。

公开(公告)号：WO1995006295A1

公开(公告)日：1995-03-02

申请号：PCT/US1994009221

申请日：1994-08-16

Applicant: MOTOROLA, INC.

Inventor： MOTOROLA, INC. ,  BUSH, Kevin, J. ,  DUA, Sanjayp ,  ADAMS, Neil, J. ,  MARKYVECH, Craig, R.

IPC: G06F19/00

CPC classification number: F02D41/008 ,  F02D41/0085 ,  F02D41/1401 ,  F02D41/1456 ,  F02D41/1473 ,  F02D41/1481 ,  F02D2041/1415 ,  F02D2041/1416 ,  F02D2041/1417 ,  F02D2041/1433 ,  G01M15/104

Abstract: A system, and a corresponding method, for measuring a chemical concentration of a gas exhausted from exhaust ports (409, 413) of a multi-cylinder internal combustion engine (401) includes a gas sensing device. This device (419) is preferably a UEGO (Universal Exhaust Gas Oxygen) sensor. The gas exhausted is present in a substantially stable chemical concentration (706, 718) at a collection point (420) during intervals (738, 742) of engine angular rotation corresponding to the exhaust cycles. The UEGO sensor (419) measures the gas exhausted from the exhaust ports (409, 413) and provides a sensory output signal (743) that, during the intervals (738, 742) of engine angular rotation corresponding to each of the exhaust cycles, approaches (737, 741) a substantially stable value representative of the chemical concentration of the gas (706, 718) exhausted during the associated exhaust cycle. The sensory output signal (743) is coupled to an engine control system (431) that is executing signal reconstruction method steps (500, 600). These signal reconstruction steps (500, 600) are preferably based on a Kalman-Bucy state estimator in which a constituent gas signal P?oe? (745) that has a substantially constant amplitude during the intervals (738, 742), is reconstructed by the Kalman-Bucy state estimation reconstruction process (500, 600). The described improved method, and system, can compensate for the static and dynamic temporal and spacial effects, characteristic of the multi-cylinder engine exhaust system and the difference in sensory response to rich and lean exhaust gases, of the UEGO (419) sensor.

Abstract translation: 用于测量从多气缸内燃机（401）的排气口（409,413）排出的气体的化学浓度的系统和相应的方法包括气体感测装置。 该装置（419）优选为UEGO（通用废气氧）传感器。 在对应于排气循环的发动机角旋转的间隔（738,742）期间，排出的气体在收集点（420）处以基本稳定的化学物质浓度（706,718）存在。 UEGO传感器（419）测量从排气口（409,413）排出的气体，并提供感测输出信号（743），在对应于每个排气循环的发动机角旋转的间隔（738,742）期间， 方法（737,741）表示在相关联的排气循环期间排出的气体（706,718）的化学浓度的基本上稳定的值。 感测输出信号（743）耦合到执行信号重建方法步骤（500,600）的发动机控制系统（431）。 这些信号重构步骤（500,600）优选地基于卡尔曼 - 布西状态估计器，其中构成气体信号P 1 通过卡尔曼 - 布西状态估计重建处理（500,600）来重建在间隔（738,742）期间具有基本恒定幅度的（745）。 所描述的改进的方法和系统可以补偿UEGO（419）传感器的静态和动态时空和空间效应，多缸发动机排气系统的特性和对富排气和贫排气的感觉响应的差异。

公开(公告)号：WO1998038415A1

公开(公告)日：1998-09-03

申请号：PCT/US1997022634

申请日：1997-12-04

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  BUSH, Kevin, J. ,  CHURCH, Bruce, A. ,  FRANKOWSKI, David

IPC: F01N03/00

CPC classification number: F01N11/00 ,  F01N11/007 ,  F01N2550/02 ,  F01N2900/0422 ,  Y02T10/47

Abstract: A method for monitoring the performance of a catalytic converter (34) computes the oxygen storage capacity and desorption capacity of a catalyst within the catalytic converter (34). An engine control unit (10) receives mass flow rate information of air from a mass air flow rate sensor (12) and an injector driver (24), and receives electrical signals from an upstream exhaust gas sensor (28) and a downstream exhaust gas sensor (30). The engine control unit (10) calculates normalized air fuel ratios for the exhaust gas entering and leaving the catalytic converter (34) and performs numerical integration to determine the oxygen storage capacity and oxygen desorption capacity of the catalyst in the catalytic converter (34). The calculated oxygen storage and desorption capacities of the catalyst are compared with threshold values to determine the performance of the catalytic converter (34).

Abstract translation: 用于监测催化转化器（34）的性能的方法计算催化转化器（34）内的催化剂的储氧能力和解吸能力。 发动机控制单元（10）从质量空气流量传感器（12）和喷射器驱动器（24）接收空气的质量流量信息，并且从上游废气传感器（28）和下游排气 传感器（30）。 发动机控制单元（10）计算进入和离开催化转化器（34）的废气的归一化空燃比，并执行数值积分，以确定催化转化器（34）中的催化剂的储氧能力和氧解吸能力。 将催化剂的计算氧气存储和解吸能力与阈值进行比较以确定催化转化器（34）的性能。

公开(公告)号：WO1997016639A1

公开(公告)日：1997-05-09

申请号：PCT/US1996014116

申请日：1996-08-27

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  SCHUMACHER, Darren, A. ,  BUSH, Kevin, J.

IPC: F02D41/14

CPC classification number: F02D41/1402 ,  F02D41/047 ,  F02D41/1406 ,  F02D2041/141 ,  F02D2041/1415 ,  F02D2041/1417 ,  F02D2041/1418 ,  F02D2041/1433 ,  F02D2041/1434

Abstract: 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. Fuel delivery to the cylinder is adjusted dependent on the estimated fuel puddle dynamics. An adaptive controller (203) is characterized by three components, an adjustable compensator (207), a wall-wetting model (215), and a parameter adaptation algorithm (221). The adjustable compensator (207) receives estimates of a parameter C (223) and of a parameter bv (225) directly from the parameter adaptation algorithm (221), and adjusts fuel injected (213) dependent on the parameter estimates (223 and 225) and a desired fuel demand (205).

Abstract translation: 在多缸发动机气缸中的自适应瞬态燃料补偿的方法和系统通过确定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。 自适应控制器（203）的特征在于三个部件，可调节补偿器（207），壁面润湿模型（215）和参数自适应算法（221）。 可调节补偿器（207）直接从参数自适应算法（221）接收参数C（223）和参数bv（225）的估计，并且根据参数估计（223和225）来调节喷射的燃料（213） 和期望的燃料需求（205）。

公开(公告)号：EP0805917B1

公开(公告)日：2003-11-05

申请号：EP96929874.4

申请日：1996-08-27

Applicant: MOTOROLA, INC.

Inventor： SCHUMACHER, Darren, A. ,  BUSH, Kevin, J.

IPC: F02D41/14 ,  F02D41/32 ,  F02D41/04

CPC classification number: F02D41/1402 ,  F02D41/047 ,  F02D41/1406 ,  F02D2041/141 ,  F02D2041/1415 ,  F02D2041/1417 ,  F02D2041/1418 ,  F02D2041/1433 ,  F02D2041/1434

公开(公告)号：EP0880644A1

公开(公告)日：1998-12-02

申请号：EP97913685.0

申请日：1997-10-15

Applicant: MOTOROLA, INC.

Inventor： BUSH, Kevin, J. ,  SCHUMACHER, Darren, A. ,  CHURCH, Bruce, A.

IPC: F02D41

CPC classification number: F02D41/047 ,  F02D41/1402 ,  F02D41/2458 ,  F02D2041/141 ,  F02D2041/1433

Abstract: 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 (413) 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 an open-loop fuel parameter table dependent upon the estimated fuel puddle dynamics. The control device (409) then 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 upon the open-loop fuel parameter table when the exhaust gas sensor is in the non-lit-off condition.