System and method for controlling release of fuel vapor from a vapor recovery system
    41.
    发明授权
    System and method for controlling release of fuel vapor from a vapor recovery system 有权
    控制蒸气回收系统释放燃料蒸汽的系统和方法

    公开(公告)号:US06595190B1

    公开(公告)日:2003-07-22

    申请号:US09918080

    申请日:2001-07-30

    IPC分类号: F02M3302

    摘要: A system and method for adjusting fuel vapor delivery from a fuel vapor recovery system in an internal combustion engine. A requested amount of fuel vapor delivery is determined based upon a desired fuel vapor delivery amount and various system constraints, which ensure continued optimal operation of the vehicle. Purge fuel ratios are calculated by comparing desired levels to actual levels of various operating parameters. The purge fuel ratios are compared to each other to determine the minimum value from among the various purge fuel ratios, which is indicative of the most limiting system constraint. The most limiting system constraint is used to calculate an amount of fuel vapor to be delivered from the vapor recovery system.

    摘要翻译: 一种用于调节来自内燃机中的燃料蒸汽回收系统的燃料蒸汽输送的系统和方法。 基于期望的燃料蒸气输送量和各种系统约束来确定所需量的燃料蒸气输送,这确保车辆的持续最佳操作。 通过将所需水平与各种操作参数的实际水平进行比较来计算清除燃料比。 净化燃料比彼此进行比较,以确定各种清洗燃料比中的最小值,这表示最受限制的系统约束。 最受限制的系统约束用于计算要从蒸气回收系统输送的燃料蒸气量。

    Air/fuel ratio control system
    42.
    发明授权
    Air/fuel ratio control system 失效
    空/燃比控制系统

    公开(公告)号:US5954039A

    公开(公告)日:1999-09-21

    申请号:US53217

    申请日:1998-04-01

    IPC分类号: F02D41/14

    CPC分类号: F02D41/1443 F02D41/1456

    摘要: An air/fuel control system (8) and method for an engine (28) having two engine banks coupled to a single catalytic converter (50) uses first and second exhaust gas oxygen sensors (44, 55) coupled to respective first and second exhaust manifolds (56, 57) and various engine operating parameters. During a first set of engine operating conditions, air/fuel control system (8) maintains the exhaust air/fuel ratio oscillations of the two bank in phase with one another. During a second set of engine operating conditions, air/fuel control system (8) maintains the exhaust air/fuel ratio oscillations of the two bank 180 degrees out of phase with one another. When transitioning, emission impacts are minimized.

    摘要翻译: 具有耦合到单个催化转化器(50)的两个发动机组的用于发动机(28)的空气/燃料控制系统(8)和方法使用第一和第二排气氧传感器(44,55),其耦合到相应的第一和第二排气 歧管(56,57)和各种发动机工作参数。 在第一组发动机运行条件下,空气/燃料控制系统(8)保持两组的排气/燃料比振荡相位相位。 在第二组发动机操作条件期间,空气/燃料控制系统(8)将两组的排气空气/燃料比振荡保持彼此相位相差180度。 过渡时,排放影响最小化。

    STABILITY CONTROL AND INCLINED SURFACE CONTROL USING A COMMON SIGNAL SOURCE
    47.
    发明申请
    STABILITY CONTROL AND INCLINED SURFACE CONTROL USING A COMMON SIGNAL SOURCE 审中-公开
    使用常规信号源进行稳定控制和内置表面控制

    公开(公告)号:US20100017070A1

    公开(公告)日:2010-01-21

    申请号:US12173281

    申请日:2008-07-15

    IPC分类号: B60T8/24

    CPC分类号: B60W30/04 B60W30/02

    摘要: A method and system are disclosed for controlling a vehicle. The method includes adjusting a first actuator to increase vehicle stability during vehicle traveling conditions, the actuator adjusted in response to a vehicle acceleration sensor. The method also includes adjusting a second actuator to maintain vehicle position during stopped vehicle conditions on an inclined surface, the second actuator adjusted in response to the vehicle acceleration sensor.

    摘要翻译: 公开了用于控制车辆的方法和系统。 该方法包括调整第一致动器以在车辆行驶状态期间提高车辆稳定性,致动器响应于车辆加速度传感器而调节。 该方法还包括调节第二致动器以在停止的车辆状态下在倾斜表面上维持车辆位置,第二致动器响应于车辆加速度传感器而被调整。

    Power-based idle speed control
    48.
    发明授权
    Power-based idle speed control 有权
    基于功率的怠速控制

    公开(公告)号:US06688282B1

    公开(公告)日:2004-02-10

    申请号:US10064909

    申请日:2002-08-28

    IPC分类号: F02D4116

    摘要: A system and method are disclosed for regulating engine idle speed by coordinating control of two actuators: a slow actuator and a fast actuator. The slow actuator is preferably a throttle valve and the fast actuator is preferably an ignition system affecting spark timing. The slow actuator is controlled based on an idle power requirement and the target idle speed; whereas the fast actuator is controlled based on the idle power requirement and the actual idle speed. Additionally, control of the two actuators is further based on a desired power reserve and an actual power reserve. Power reserve is related to the ratio of the power produced by the engine and the power that would be produced by the engine if the faster actuator were at its optimal setting.

    摘要翻译: 公开了一种用于通过协调两个致动器的控制来调节发动机怠速的系统和方法:慢速执行器和快速致动器。 较慢的致动器优选地是节流阀,并且快速致动器优选地是影响火花正时的点火系统。 基于空载功率要求和目标怠速速度控制慢速执行器; 而快速执行器则根据空载功率要求和实际怠速进行控制。 此外,两个致动器的控制进一步基于期望的动力储备和实际动力储备。 动力储存与发动机产生的功率与发动机产生的功率的比率有关,如果较快的执行器处于最佳设定值,则与发动机产生的功率的比值有关。

    Fuel tank pressure control system
    49.
    发明授权
    Fuel tank pressure control system 有权
    燃油箱压力控制系统

    公开(公告)号:US06378505B1

    公开(公告)日:2002-04-30

    申请号:US09639651

    申请日:2000-08-15

    IPC分类号: F02M3302

    CPC分类号: F02M25/0809

    摘要: A method is presented for diagnosing a condition in the fuel vapor purge system. The engine, the fuel tank and the carbon canister are connected in a three-way connection. The engine can be selectively isolated by a purge control valve, and the fuel tank can be selectively isolated by a fuel tank control valve. The operation of both valves is coordinated by an electronic engine controller. By isolating the fuel tank, and comparing the actual rate of change of the internal tank pressure (from the tank pressure sensor) to the estimated rate of change (from engine operating conditions) it is possible to determine if a condition occurred, and whether it is in the tank or in the vapor purge lines.

    摘要翻译: 提出了一种用于诊断燃料蒸汽吹扫系统中的状况的方法。 发动机,燃油箱和碳罐以三通连接。 发动机可以通过清洗控制阀选择性隔离,并且燃料箱可以通过燃料箱控制阀选择性隔离。 两个阀的操作由电子发动机控制器协调。 通过隔离燃料箱,并将内部罐体压力(从油箱压力传感器)的实际变化率与估计的变化率(从发动机运行状态)进行比较,可以确定是否发生了状况,以及是否 在罐中或蒸汽吹扫管线中。

    System for controlling air-fuel ratio during intake control device transitions
    50.
    发明授权
    System for controlling air-fuel ratio during intake control device transitions 失效
    在进气控制装置过渡期间控制空燃比的系统

    公开(公告)号:US06257206B1

    公开(公告)日:2001-07-10

    申请号:US09496540

    申请日:2000-02-02

    IPC分类号: F02M5100

    CPC分类号: F02D41/047 F02M26/46

    摘要: 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.

    摘要翻译: 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。