Method and system for estimating cylinder air charge for an internal combustion engine
    11.
    发明申请
    Method and system for estimating cylinder air charge for an internal combustion engine 有权
    用于估计内燃机的气缸充气的方法和系统

    公开(公告)号:US20040083047A1

    公开(公告)日:2004-04-29

    申请号:US10065538

    申请日:2002-10-28

    CPC classification number: F02D41/18 F02D2200/0402 F02D2200/0406

    Abstract: A method is provided for estimating cylinder air charge in an internal combustion engine, such engine having a mass airflow (MAF) sensor and a manifold absolute pressure (MAP) sensor. The method provides such cylinder air charge estimation from signals produced primarily by the manifold absolute pressure sensor during engine transient conditions. During a transition period between the transient condition and a steady-state engine condition the method combines signals primarily from both the mass airflow sensor and the manifold absolute pressure sensor to provide such cylinder air charge estimation. During the steady-state condition, the method uses primarily only the mass airflow sensor to provide such cylinder air charge estimation. With such method, the cylinder air charge estimation method utilizes the advantages of both measurement sensors. When transient situation occurs, the engine controller utilizes measurements from MAP sensors (together with measurements from other less significant sensors) to produce the cylinder air charge estimation. When it is determined that the transient situation is converging to a steady state operation, a smoothing algorithm is employed to combine the measurements from both MAF and MAP sensors to produce the cylinder air charge estimation. Finally, when the engine is operating in steady state, only the MAF sensor (together with other less significant sensors) is used to produce the cylinder air charge estimation.

    Abstract translation: 提供了一种用于估计内燃机中的气缸空气的方法,该内燃机具有质量气流(MAF)传感器和歧管绝对压力(MAP)传感器。 该方法提供了在发动机瞬态条件下主要由歧管绝对压力传感器产生的信号的气缸气压估计。 在瞬态条件和稳态发动机条件之间的过渡期间,该方法主要组合来自质量气流传感器和歧管绝对压力传感器的信号,以提供这种气缸充气估计。 在稳态条件下,该方法主要仅使用质量气流传感器来提供这种气缸空气电荷估计。 利用这种方法,气缸空气电荷估计方法利用两个测量传感器的优点。 当发生瞬态情况时,发动机控制器利用MAP传感器的测量结果(以及其他较不重要的传感器的测量值)来产生气缸空气电荷估计。 当确定瞬态情况正在收敛到稳态运行时,采用平滑算法来组合来自MAF和MAP传感器的测量结果,以产生气缸空气电荷估计。 最后,当发动机处于稳定状态时,仅使用MAF传感器(连同其他较不重要的传感器)来产生气缸空气充量估算。

    Sensing strategy for damage mitigation in compatability situations
    12.
    发明申请
    Sensing strategy for damage mitigation in compatability situations 有权
    兼容性情况下损害减轻的传感策略

    公开(公告)号:US20040083042A1

    公开(公告)日:2004-04-29

    申请号:US10065505

    申请日:2002-10-25

    CPC classification number: B60R21/013 B60R21/0134

    Abstract: A crash assessment and safety device activation system includes a target object potentially colliding with a host object in motion, is disclosed. A remote sensor is coupled to the host object and adapted to detect a target object within a region sensed thereby and generate an object signal from the target object. A visual sensor is adapted to sense the region sensed by the remote sensor and therefrom generate a visual signal. A safety device actuator is coupled to the host object and adapted to activate a safety device. A controller is attached to the host object, the remote sensor, the visual sensor and the safety device actuator. The control is adapted to assess collision threat from the remote sensor signal and confirm the presence of the target object with the vision sensor. The controller is further adapted to control the safety device actuator in response said threat assessment.

    Abstract translation: 公开了一种碰撞评估和安全装置激活系统,包括可能与运动中的主体物体相撞的目标物体。 远程传感器耦合到主机对象并且适于检测由其感测的区域内的目标对象,并从目标对象生成对象信号。 视觉传感器适于感测由远程传感器感测的区域并且由此产生视觉信号。 安全装置致动器联接到主体物体并且适于激活安全装置。 控制器连接到主机,远程传感器,视觉传感器和安全装置致动器。 该控制适用于评估远程传感器信号的碰撞威胁,并使用视觉传感器确认目标对象的存在。 控制器进一步适于响应于所述威胁评估来控制安全装置致动器。

    Diagnostic strategy for an electric motor using sensorless control and a position sensor
    13.
    发明申请
    Diagnostic strategy for an electric motor using sensorless control and a position sensor 有权
    使用无传感器控制和位置传感器的电动机的诊断策略

    公开(公告)号:US20040046519A1

    公开(公告)日:2004-03-11

    申请号:US10065026

    申请日:2002-09-11

    Abstract: A strategy to control and diagnose the operation of an electric motor using a sensorless control system augmented by feedback from a position and speed sensor is disclosed. The strategy can improve the robustness of operation and diagnose potential faults in electric motors. The present invention includes a method for diagnosing operation of an electric motor and a method and system for controlling an electric motor. In the diagnostic method, a sensorless system and a sensor based system are checked against each other to determine if either of the systems is faulted. In the control method, the sensor based control system is used when the motor speed is below a predetermined threshold and the sensorless system is used when the motor speed is above the predetermined threshold. The position sensor can be a low resolution position sensor, an engine crankshaft sensor, an engine camshaft sensor, or a transmission sensor.

    Abstract translation: 公开了一种通过来自位置和速度传感器的反馈来增强的无传感器控制系统来控制和诊断电动机的操作的策略。 该策略可以提高运行的鲁棒性并诊断电动机的潜在故障。 本发明包括一种用于诊断电动机的操作的方法以及用于控制电动机的方法和系统。 在诊断方法中,检查无传感器系统和基于传感器的系统,以确定系统中是否存在故障。 在控制方法中,当电机速度低于预定阈值时使用基于传感器的控制系统,并且当电动机速度高于预定阈值时使用无传感器系统。 位置传感器可以是低分辨率位置传感器,发动机曲轴传感器,发动机凸轮轴传感器或传动传感器。

    WINDSHIELD WASHER SYSTEM FOR AUTOMOTIVE VEHICLE
    14.
    发明申请
    WINDSHIELD WASHER SYSTEM FOR AUTOMOTIVE VEHICLE 失效
    用于汽车的WINDSHIELD洗衣机系统

    公开(公告)号:US20040046518A1

    公开(公告)日:2004-03-11

    申请号:US10064978

    申请日:2002-09-05

    CPC classification number: B60S1/487 F16D65/78 F16D2055/0016 F16D2065/784

    Abstract: A windshield washer system for an automotive vehicle includes a reservoir for holding windshield washer fluid, and an applicator system for furnishing washer fluid from the reservoir to an exterior surface of the vehicle. A heat transfer system recovers heat from a braking system of the vehicle and conveys the recovered heat to the washer fluid contained within the reservoir.

    Abstract translation: 用于机动车辆的挡风玻璃清洗器系统包括用于保持挡风玻璃清洗液的储存器和用于将清洗液从储存器提供到车辆的外表面的施加器系统。 传热系统从车辆的制动系统中回收热量,并将回收的热量输送到储存器内容纳的洗涤液。

    Method of compensating for the effects of using a block heater in an internal combustion engine
    15.
    发明申请
    Method of compensating for the effects of using a block heater in an internal combustion engine 失效
    补偿在内燃机中使用块式加热器的效果的方法

    公开(公告)号:US20040044462A1

    公开(公告)日:2004-03-04

    申请号:US10064910

    申请日:2002-08-28

    Abstract: A method for determining the use of a block heater in an internal combustion engine and compensating for the effects that such heaters can have on an engine coolant sensor. The method uses measurements of ambient air temperature to determine if the use of a heater is likely and then compares the measured coolant temperature with an inferred coolant temperature to verify the usage of the block heater when the difference is significant. When use of a heater is detected, the value for coolant temperature initially supplied to the engine control system is compensated with a normalized coolant temperature value that is based on a functional relationship between the inferred engine temperature and the measured coolant temperature. Then as the mechanism of the engine begins to mechanically turn and the coolant is circulated, the normalized value of coolant temperature is filtered in a way that the normalized value approaches the temperature reading from the coolant sensor, as the starting process continues.

    Abstract translation: 一种用于确定在内燃机中使用块式加热器并补偿这种加热器对发动机冷却剂传感器可能产生的影响的方法。 该方法使用环境空气温度的测量来确定是否可能使用加热器,然后将测量的冷却剂温度与推测的冷却剂温度进行比较,以在差异显着时验证块式加热器的使用。 当检测到加热器的使用时,最初提供给发动机控制系统的冷却剂温度的值由基于所推断的发动机温度和所测量的冷却剂温度之间的函数关系的标准化冷却剂温度值来补偿。 然后当发动机的机构开始机械转动并且冷却剂循环时,随着启动过程的继续,冷却剂温度的归一化值以标准化值接近从冷却剂传感器读取的温度的方式被过滤。

    EXHAUST EMISSION DIAGNOSTICS
    16.
    发明申请
    EXHAUST EMISSION DIAGNOSTICS 有权
    排气诊断

    公开(公告)号:US20040040284A1

    公开(公告)日:2004-03-04

    申请号:US10064956

    申请日:2002-09-04

    Abstract: A diesel engine emission control system uses an upstream oxidation catalyst and a downstream SCR catalyst to reduce NOx in a lean exhaust gas environment. The engine and upstream oxidation catalyst are configured to provide approximately a 1:1 ratio of NO to NO2 entering the downstream catalyst. In this way, the downstream catalyst is insensitive to sulfur contamination, and also has improved overall catalyst NOx conversion efficiency. Degradation of the system is determined when the ratio provided is no longer near the desired 1:1 ratio. This condition is detected using measurements of engine operating conditions such as from a NOx sensor located downstream of the catalysts. Finally, control action to adjust an injected amount of reductant in the exhaust gas based on the actual NO to NO2 ratio upstream of the SCR catalyst and downstream of the oxidation catalyst.

    Abstract translation: 柴油发动机排放控制系统使用上游氧化催化剂和下游SCR催化剂来减少贫排气环境中的NOx。 发动机和上游氧化催化剂被配置为提供进入下游催化剂​​的NO与NO 2的大约1:1的比例。 以这种方式,下游催化剂​​对硫污染不敏感,并且还具有改善的总体催化剂NOx转化效率。 当所提供的比例不再接近所需的1:1比率时,系统的降级是确定的。 使用发动机操作条件的测量来检测这种情况,例如来自位于催化剂下游的NOx传感器。 最后,根据SCR催化剂的上游和氧化催化剂的下游的实际NO-NO2比例,调节废气中还原剂的注入量的控制动作。

    Virtual reality method and apparatus with improved navigation
    17.
    发明申请
    Virtual reality method and apparatus with improved navigation 审中-公开
    虚拟现实方法和设备改进导航

    公开(公告)号:US20040027394A1

    公开(公告)日:2004-02-12

    申请号:US10064732

    申请日:2002-08-12

    CPC classification number: G06F3/04815

    Abstract: A virtual reality assembly 10 is provided, including a display element 12 projecting a virtual environment 16, and a plurality of way-point elements 20 each defined by its own way-point position 22. A user 18 can automatically move to one of said way-point positions 22 by simply selecting the corresponding way-point element 20.

    Abstract translation: 提供了虚拟现实组件10,其包括投影虚拟环境16的显示元件12和由其自己的路点位置22定义的多个路点元素20.用户18可以自动地移动到所述方式之一 通过简单地选择对应的路点元素20来确定点位置22。

    METHOD FOR LOW EMISSION VEHICLE STARTING WITH IMPROVED FUEL ECONOMY
    19.
    发明申请
    METHOD FOR LOW EMISSION VEHICLE STARTING WITH IMPROVED FUEL ECONOMY 有权
    具有改进燃料经济性的低排放车辆起动方法

    公开(公告)号:US20040006972A1

    公开(公告)日:2004-01-15

    申请号:US10064433

    申请日:2002-07-12

    Abstract: A method for rapidly heating an emission control device in an engine exhaust uses excess air added to the exhaust via an air introduction device. After an engine cold start, the engine is operated to raise exhaust manifold temperature to a first predetermined value by operating the engine with a lean air-fuel ratio and retarded ignition timing. Once the exhaust manifold reaches the predetermined temperature value, the engine is switched to operate rich and air is added via the air introduction device. The added air and rich exhaust gas burn in the exhaust, thereby generating heat and raising catalyst temperature even more rapidly. The rich operation and excess air are continued until either engine airflow increases beyond a pre-selected value, or the emission control device reaches a desired temperature value. After the emission control device reaches the desired temperature, the engine is operated substantially around stoichiometry. Further, a method is described for adaptively learning pump airflow using feedback from an exhaust gas oxygen sensor.

    Abstract translation: 用于对发动机排气中的排放控制装置进行快速加热的方法通过空气引入装置使添加到排气中的多余的空气。 在发动机冷启动之后,通过以稀空燃比和延迟点火正时操作发动机来操作发动机以将排气歧管温度升高到第一预定值。 一旦排气歧管达到预定温度值,则发动机被切换以运行丰富,空气通过空气引入装置添加。 排气中增加的空气和浓缩的废气燃烧,从而更快地产生热量和提高催化剂温度。 丰富的操作和多余的空气继续进行,直到发动机气流增加超过预选值,或者排放控制装置达到期望的温度值。 在排放控制装置达到所需温度之后,发动机基本上以化学计量运行。 此外,描述了使用来自排气氧传感器的反馈自适应地学习泵送气流的方法。

    Transmission oil cooler and filter
    20.
    发明申请
    Transmission oil cooler and filter 有权
    变速箱油冷却器和过滤器

    公开(公告)号:US20030234097A1

    公开(公告)日:2003-12-25

    申请号:US10064224

    申请日:2002-06-21

    Abstract: An oil cooler for a vehicle with an automatic transmission that includes a core contained between two end pipes. A first one of the end pipes includes an oil inlet, for directing oil from the transmission, and an oil outlet, directing oil back to the transmission, and a dividing plate having a flow control orifice. An oil filter is positioned around the flow control orifice to filter the oil flowing through the orifice, thereby removing contaminants from the oil, while the oil flowing through the core is cooled.

    Abstract translation: 一种用于具有自动变速器的车辆的油冷却器,其包括在两个端部管道之间的核心。 端管中的第一个包括用于引导来自变速器的油的进油口和将油导向变速器的油出口,以及具有流量控制孔的分隔板。 油过滤器定位在流量控制孔周围,以过滤流过孔口的油,从而从油中除去污染物,同时流过油芯的油被冷却。

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