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1.发明授权公开(公告)号：US06415652B1
公开(公告)日：2002-07-09
申请号：US09465571
申请日：1999-12-17
IPC分类号： G01N1108
CPC分类号： F02D41/3809 , F02B3/06 , F02D2200/0602 , F02M57/025 , F02M59/105
摘要： The present invention provides a method and apparatus for determining the oil grade of an actuating fluid in a fuel system. The method includes the steps of determining an actuating fluid temperature, a pump speed, and a peak pressure or a timing event of the actuating fluid, and responsively determining the oil grade of the actuating fluid.
摘要翻译： 本发明提供一种用于确定燃料系统中的致动流体的油位的方法和装置。 该方法包括以下步骤：确定致动流体的致动流体温度，泵速度，峰值压力或定时事件，以及响应地确定致动流体的油位。
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公开(公告)号：US06508107B2
公开(公告)日：2003-01-21
申请号：US10047038
申请日：2002-01-14
IPC分类号： G01N1100
CPC分类号： F02D41/3809 , F02B3/06 , F02D2200/0602 , F02M57/025 , F02M59/105
摘要： The present invention provides a method and apparatus for determining the oil grade of an actuating fluid in a fuel system. The method includes the steps of determining an actuating fluid temperature, a pump speed, and a peak pressure or a timing event of the actuating fluid, and responsively determining the oil grade of the actuating fluid.
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公开(公告)号：US06216528B1
公开(公告)日：2001-04-17
申请号：US09211626
申请日：1998-12-15
IPC分类号： G01N1108
CPC分类号： F02M57/025 , G01N11/08
摘要： The present invention provides a method and apparatus for determining the viscosity range and/or oil grade of an actuating fluid in a fuel system. The method includes the steps of determining a flow, pressure, and temperature of the actuating fluid, and responsively determining the viscosity range and/or oil grade of the actuating fluid.
摘要翻译： 本发明提供一种用于确定燃料系统中的致动流体的粘度范围和/或油级的方法和装置。 该方法包括确定致动流体的流量，压力和温度以及响应地确定致动流体的粘度范围和/或油分级的步骤。
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公开(公告)号：US06189378B1
公开(公告)日：2001-02-20
申请号：US09211395
申请日：1998-12-14
IPC分类号： G01M1500
CPC分类号： F02D41/2467 , F02D41/2438
摘要： The present invention provides a method and apparatus for determining a performance characteristic of at least one of a plurality of fuel injectors located within a fuel system. The method includes the steps of determining a first desired fuel quantity to be delivered by the plurality of injectors, suspending fuel delivery by one of the injectors, determining a second desired fuel quantity to be delivered by the injectors in response to the suspension, and determining a performance characteristic of the suspended injector in response to said first and the second desired fuel quantity.
摘要翻译： 本发明提供一种用于确定位于燃料系统内的多个燃料喷射器中的至少一个的性能特征的方法和装置。 该方法包括以下步骤：确定由多个喷射器输送的第一期望燃料量，通过其中一个喷射器暂停燃料输送，确定由喷射器响应于暂停而传送的第二期望燃料量，以及确定 响应于所述第一和第二所需燃料量的悬挂喷射器的性能特性。
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公开(公告)号：US6152107A
公开(公告)日：2000-11-28
申请号：US138887
申请日：1998-08-24
CPC分类号： F02D31/007 , F02D41/06 , F02D41/2422 , F02D2250/18 , F02D2250/38 , F02D41/3809
摘要： The present invention is an apparatus for controlling the amount of fuel delivered to an engine during operation at cold and warm temperatures using different sets of fuel rate maps designed to compensate fuel quantity signals to optimize engine performance. A switching mechanism based on engine coolant temperature is used to select which set of maps to use. When the engine coolant temperature is below a threshold level, a cold torque map provides a signal representing the duration limit of time that fuel is to be injected. A compensating factor derived from a cold temperature smoke map is used to adjust the cold torque map signal to limit the fuel amount to prevent excess smoke. When the engine coolant temperature is above the threshold, a fuel duration limit signal from a standard temperature torque map is compared to a fuel duration limit signal from a standard temperature smoke map, and the minimum between the two signals is selected for output to the fuel injectors.
摘要翻译： 本发明是一种用于在冷和暖温度下操作期间输送到发动机的燃料量的装置，其使用不同组的燃料速率图，其设计用于补偿燃料量信号以优化发动机性能。 使用基于发动机冷却剂温度的切换机构来选择要使用的哪组地图。 当发动机冷却剂温度低于阈值水平时，冷扭矩图提供表示要喷射燃料的时间的持续时间限度的信号。 使用来自冷温度烟图的补偿因子来调节冷扭矩图信号以限制燃料量以防止过多的烟雾。 当发动机冷却剂温度高于阈值时，将来自标准温度转矩图的燃料持续时间限制信号与来自标准温度烟图的燃料持续时间限制信号进行比较，并且选择两个信号之间的最小值以输出到燃料 注射器。
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公开(公告)号：US5214916A
公开(公告)日：1993-06-01
申请号：US819682
申请日：1992-01-13
申请人： Michael S. Lukich
发明人： Michael S. Lukich
IPC分类号： B60K17/10 , B60W10/103 , E02F9/22 , F16H61/46 , F16H61/475 , G05D16/20
CPC分类号： B60W10/103 , B60W10/06 , E02F9/2235 , E02F9/2246 , E02F9/2292 , E02F9/2296 , F16H61/46 , F16H61/475 , B60Y2200/41 , Y02T10/76
摘要： An apparatus controls an electrohydraulic system of a work vehicle. The work vehicle has a engine, at least one fluid circuit having a variable displacement pump driven by the engine, and a plurality of control valves for controllably passing fluid from the variable displacement pump to a plurality of respective work elements. A device produces a signal indicative of a desired velocity of a respective work element. A device senses a load on a work element and producing a signal representative of the actual load in response to the sensed load. A control device receives the desired velocity signal and load signals, and responsively calculates a desired power level for the electrohydraulic system. Responsively, the control device produces an engine speed command signal indicative of an optimum engine speed in response to the desired power level.
摘要翻译： 一种装置控制作业车辆的电动液压系统。 工作车辆具有发动机，至少一个具有由发动机驱动的可变排量泵的流体回路和用于将流体从可变排量泵可控地传递到多个相应工作元件的多个控制阀。 设备产生指示相应工作元件的期望速度的信号。 设备感测工件上的负载，并响应感测到的负载产生代表实际负载的信号。 控制装置接收所需的速度信号和负载信号，并且响应地计算电液系统的期望功率水平。 响应地，控制装置响应于期望的功率水平产生指示最佳发动机转速的发动机转速指令信号。
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公开(公告)号：US08061123B2
公开(公告)日：2011-11-22
申请号：US11978618
申请日：2007-10-30
IPC分类号： F01N3/00
CPC分类号： F01N3/208 , F01N2560/06 , F01N2560/07 , F01N2570/14 , F01N2610/02 , F01N2610/146 , F01N2900/1812 , Y02T10/24
摘要： A method for treating a flow of exhaust from an engine includes injecting reductant into the flow of exhaust with an injector disposed upstream from a catalytic device. The injector and the catalytic device are disposed in an exhaust system for the engine. The method also includes passing the flow of exhaust through the catalytic device, sensing a characteristic of at least one of the exhaust system and the engine, monitoring the sensed characteristic to recognize a condition associated with a formation of a decomposition material formed from the reductant, and controlling an operation of at least one of the engine and the exhaust system to increase a temperature in the exhaust system in response to the recognized condition.
摘要翻译： 用于处理来自发动机的排气流的方法包括将催化剂注入设置在催化装置上游的喷射器中将还原剂注入到排气流中。 喷射器和催化装置设置在用于发动机的排气系统中。 该方法还包括使排气流通过催化装置，感测排气系统和发动机中的至少一个的特性，监测感测到的特性以识别与由还原剂形成的分解材料的形成有关的状况， 以及控制所述发动机和排气系统中的至少一个的操作，以响应于所识别的条件来增加所述排气系统中的温度。
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公开(公告)号：US20090266058A1
公开(公告)日：2009-10-29
申请号：US12081893
申请日：2008-04-23
申请人： Mary Lou Kesse , Chris L. Wynkoop , Zhiyong Wei , Michael S. Lukich , Wade D. Scrivner , Amit Jayachandran
发明人： Mary Lou Kesse , Chris L. Wynkoop , Zhiyong Wei , Michael S. Lukich , Wade D. Scrivner , Amit Jayachandran
CPC分类号： F01N3/208 , F01N3/106 , F01N2560/026 , F01N2610/02 , F01N2900/0408 , F01N2900/0411 , F01N2900/0412 , Y02T10/24
摘要： An exhaust system for use with a combustion engine is disclosed. The exhaust system may have an exhaust passageway, and a reduction catalyst disposed within the exhaust passageway. The exhaust system may also have a first sensor located to generate a first signal indicative of an operational parameter of the reduction catalyst, and a second sensor located to generate a second signal indicative of a performance parameter of the reduction catalyst. The exhaust system may further have an injection device located to inject reductant upstream of the reduction catalyst, and a controller in communication with the combustion engine, the first sensor, the second sensor, and the injection device. The controller may be configured to determine a NOX production of the combustion engine, determine an amount of reductant that should be injected based on the NOX production and the first signal, and adjust the amount based on the second signal.
摘要翻译： 公开了一种用于内燃机的排气系统。 排气系统可以具有排气通道和设置在排气通道内的还原催化剂。 排气系统还可以具有第一传感器，其位于产生指示还原催化剂的操作参数的第一信号，以及位于产生指示还原催化剂的性能参数的第二信号的第二传感器。 排气系统还可以具有位于将还原剂上游的还原剂注入的注射装置，以及与内燃机，第一传感器，第二传感器和注射装置连通的控制器。 控制器可以被配置为确定内燃机的NO x生产，基于NOX产生和第一信号确定应该注入的还原剂的量，并且基于第二信号调整量。
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公开(公告)号：US20090107119A1
公开(公告)日：2009-04-30
申请号：US11978618
申请日：2007-10-30
IPC分类号： F01N3/18
CPC分类号： F01N3/208 , F01N2560/06 , F01N2560/07 , F01N2570/14 , F01N2610/02 , F01N2610/146 , F01N2900/1812 , Y02T10/24
摘要： A method for treating a flow of exhaust from an engine includes injecting reductant into the flow of exhaust with an injector disposed upstream from a catalytic device. The injector and the catalytic device are disposed in an exhaust system for the engine. The method also includes passing the flow of exhaust through the catalytic device, sensing a characteristic of at least one of the exhaust system and the engine, monitoring the sensed characteristic to recognize a condition associated with a formation of a decomposition material formed from the reductant, and controlling an operation of at least one of the engine and the exhaust system to increase a temperature in the exhaust system in response to the recognized condition.
摘要翻译： 用于处理来自发动机的排气流的方法包括将催化剂注入设置在催化装置上游的喷射器中将还原剂注入到排气流中。 喷射器和催化装置设置在用于发动机的排气系统中。 该方法还包括使排气流通过催化装置，感测排气系统和发动机中的至少一个的特性，监测感测到的特性以识别与由还原剂形成的分解材料的形成有关的状况， 以及控制所述发动机和排气系统中的至少一个的操作，以响应于所识别的条件来增加所述排气系统中的温度。
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公开(公告)号：US06272859B1
公开(公告)日：2001-08-14
申请号：US09165756
申请日：1998-10-02
IPC分类号： F02B3712
CPC分类号： F02B37/24 , F02D41/0007 , F02D2041/1409 , Y02T10/144
摘要： The present invention is an apparatus for controlling a variable geometry turbocharger (VGT) in closed loop and open loop modes, and a switching mechanism for determining whether open loop or closed loop control laws should be used. In the closed loop mode, a correction factor, obtained from a pressure correction map based on engine speed and atmospheric pressure, is subtracted from the desired boost pressure to prevent overspeed of the turbocharger at lower atmospheric pressures. The actual boost pressure is then compared to the desired boost pressure after correction to obtain a boost pressure error signal. The boost pressure error signal is used as an input to a proportional integral differential control law that responsively produces a desired VGT vane position. A minimum limit on the desired VGT vane position is based on engine speed and fuel quantity, whereas a maximum allowable vane position may be a predetermined constant or function. A linearization map is used to obtain a VGT current signal that is transmitted to an actuator for moving the vane position.
摘要翻译： 本发明是用于控制闭环和开环模式中的可变几何涡轮增压器（VGT）的装置，以及用于确定是否应当使用开环或闭环控制定律的切换机构。 在闭环模式中，从期望的增压压力中减去从基于发动机转速和大气压力的压力校正图获得的校正系数，以防止涡轮增压器在较低的大气压下超速。 然后将实际增压压力与校正后的期望增压压力进行比较，以获得增压压力误差信号。 增压压力误差信号用作响应地产生期望的VGT叶片位置的比例积分微分控制定律的输入。 所需VGT叶片位置的最小限制是基于发动机速度和燃料量，而最大允许叶片位置可以是预定的常数或功能。 使用线性化图来获得传输到用于移动叶片位置的致动器的VGT电流信号。
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