Methanol fueled turbocharged diesel cycle internal combustion engine
    1.
    发明授权
    Methanol fueled turbocharged diesel cycle internal combustion engine 失效
    甲醇燃料涡轮增压柴油循环内燃机

    公开(公告)号:US5269144A

    公开(公告)日:1993-12-14

    申请号:US757720

    申请日:1991-09-10

    摘要: The combination of an intake air supply system with an internal combustion engine having a charge air cooler, a cylinder charging air intake and an exhaust discharge is provided. The intake air supply system includes a Roots-type positive displacement blower having inlet and outlet means and an exhaust gas driven turbo-compressor connected in series with the blower. The intake air supply system further includes a bypass passage connecting the blower inlet and outlet and a valve in the bypass passage to control the flow of fluid through the bypass. The valve is operative to open and close the bypass passage in response to engine operating parameters and to modulate the flow area of the passage in response to the same engine operating parameters so as to infinitely vary the flow area between the open and closed positions of the valve. The valve is modulated to operatively maintain the bypass passage at least partially open at engine idle, whereby the valve means permits bypass flow to recirculate air flow from the blower outlet to the inlet to reduce or limit the engine power absorbed by the blower or to conduct additional air flow around the blower directly from the turbo-compressor to the engine intake to avoid the restriction of the blower to increased charging air flow. A single valve means thus provides a dual function capability.

    摘要翻译: 提供进气供给系统与具有增压空气冷却器的内燃机,气缸充气进气口和排气排出口的组合。 进气供给系统包括具有入口和出口装置的罗茨式正排量鼓风机和与鼓风机串联连接的废气驱动涡轮压缩机。 进气供给系统还包括连接鼓风机入口和出口的旁通通道和旁通通道中的阀,以控制通过旁路的流体的流动。 阀可操作以响应于发动机操作参数打开和关闭旁路通道,并且响应于相同的发动机操作参数来调节通道的流动面积,以便无限地改变通道的打开和关闭位置之间的流动面积 阀。 阀被调制以在发动机怠速时至少部分地打开旁路通道,从而阀装置允许旁路流将来自鼓风机出口的空气流再循环到入口,以减少或限制由鼓风机吸收的发动机功率或进行 鼓风机周围的涡轮机直接从涡轮压缩机附加到发动机进气口,以避免吹风机限制增加的充气风量。 因此,单个阀装置提供双重功能。

    Method of operating a supercharged methanol fueled diesel cycle internal
combustion engine
    2.
    发明授权
    Method of operating a supercharged methanol fueled diesel cycle internal combustion engine 失效
    运行增压甲醇燃料柴油循环内燃机的方法

    公开(公告)号:US5355677A

    公开(公告)日:1994-10-18

    申请号:US108313

    申请日:1993-08-18

    摘要: The combination of an intake air supply system with an internal combustion engine having a charge air cooler, a cylinder charging air intake and an exhaust discharge is provided. The intake air supply system includes a Roots-type positive displacement blower having inlet and outlet means and an exhaust gas driven turbo-compressor connected in series with the blower. The intake air supply system further includes a bypass passage connecting the blower inlet and outlet and a valve in the bypass passage to control the flow of fluid through the bypass. The valve is operative to open and close the bypass passage in response to engine operating parameters and to modulate the flow area of the passage in response to the same engine operating parameters so as to infinitely vary the flow area between the open and closed positions of the valve. The valve is modulated to operatively maintain the bypass passage at least partially open at engine idle, whereby the valve means permits bypass flow to recirculate air flow from the blower outlet to the inlet to reduce or limit the engine power absorbed by the blower or to conduct additional air flow around the blower directly from the turbo-compressor to the engine intake to avoid the restriction of the blower to increased charging air flow. A single valve means thus provides a dual function capability.

    摘要翻译: 提供进气供给系统与具有增压空气冷却器的内燃机,气缸充气进气口和排气排出口的组合。 进气供给系统包括具有入口和出口装置的罗茨式正排量鼓风机和与鼓风机串联连接的废气驱动涡轮压缩机。 进气供给系统还包括连接鼓风机入口和出口的旁通通道和旁通通道中的阀,以控制通过旁路的流体的流动。 阀可操作以响应于发动机操作参数打开和关闭旁路通道,并且响应于相同的发动机操作参数来调节通道的流动面积,以便无限地改变通道的打开和关闭位置之间的流动面积 阀。 阀被调制以在发动机怠速时至少部分地打开旁路通道,从而阀装置允许旁路流将来自鼓风机出口的空气流再循环到入口,以减少或限制由鼓风机吸收的发动机功率或进行 鼓风机周围的涡轮机直接从涡轮压缩机附加到发动机进气口,以避免吹风机限制增加的充气风量。 因此,单个阀装置提供双重功能。

    METHOD OF VERIFYING COMPONENT FUNCTIONALITY ON EGR & AIR SYSTEMS
    3.
    发明申请
    METHOD OF VERIFYING COMPONENT FUNCTIONALITY ON EGR & AIR SYSTEMS 有权
    在EGR和空气系统上验证组件功能的方法

    公开(公告)号:US20080148827A1

    公开(公告)日:2008-06-26

    申请号:US11957702

    申请日:2007-12-17

    IPC分类号: G01M15/04 G06F19/00 G01M17/00

    CPC分类号: G01M15/05

    摘要: In one aspect, the present invention is directed to a method for operating an electronically controlled internal combustion engine in a vehicle to perform at least one rationality check on at least one sensor to detect impending sensor failure and verify component functionality. The engine is equipped with an engine control system (ECS) having a memory and in electronic communication with various sensors. The sensors transmit data signals to the ECS indicative of associated engine and vehicle component functionality. The method comprises determining a measured operating condition of a first component from sensor data signals indicative of first component functionality, determining a measured operating condition of a second component from sensor data signals indicative of second component functionality, comparing the measured condition of the first component to the measured operating condition of the second component to determine whether sensor readings from the first component are indicative of a component operating within a normal range but indicative of impending sensor or component failure, logging an indication of an impending sensor or component failure as a fault in MPU memory if it occurs for a predetermined period of time and for more than a predetermined number of times and drive cycles, and activating a warning alert to an operator and initiating remedial actions responsive to the indication of impending component or sensor failure. The data logged includes time of fault, type of fault, number of occurrences of the fault, number of drive cycles where the fault occurred and distance traveled with the fault logged.

    摘要翻译: 一方面,本发明涉及一种用于操作车辆中的电子控制的内燃机以对至少一个传感器执行至少一个理性检查以检测即将发生的传感器故障并验证部件功能的方法。 发动机配备有具有存储器并与各种传感器电子通信的发动机控制系统(ECS)。 传感器将数据信号发送到指示相关发动机和车辆部件功能的ECS。 该方法包括从表示第一组件功能的传感器数据信号确定第一组件的测量操作条件,从表示第二组件功能的传感器数据信号确定第二组件的测量操作条件,将第一组件的测量条件与 第二部件的测量操作条件以确定来自第一部件的传感器读数是否指示在正常范围内操作的部件,但指示即将发生的传感器或部件故障,记录即将发生的传感器或部件故障的指示作为故障 MPU存储器,如果其发生预定时间段并且超过预定次数和驱动周期,并且激活对操作者的警告警报并响应于即将发生的组件或传感器故障的指示开始补救动作。 记录的数据包括故障时间,故障类型,故障发生次数,故障发生的驱动周期数以及记录故障的行驶距离。

    Method of verifying component functionality on EGR and air systems
    6.
    发明授权
    Method of verifying component functionality on EGR and air systems 有权
    在EGR和空气系统上验证组件功能的方法

    公开(公告)号:US07631552B2

    公开(公告)日:2009-12-15

    申请号:US11957702

    申请日:2007-12-17

    IPC分类号: G01M15/04

    CPC分类号: G01M15/05

    摘要: In one aspect, the present invention is directed to a method for operating an electronically controlled internal combustion engine in a vehicle to perform at least one rationality check on at least one sensor to detect impending sensor failure and verify component functionality. The engine is equipped with an engine control system (ECS) having a memory and in electronic communication with various sensors. The sensors transmit data signals to the ECS indicative of associated engine and vehicle component functionality. The method comprises determining a measured operating condition of a first component from sensor data signals indicative of first component functionality, determining a measured operating condition of a second component from sensor data signals indicative of second component functionality, comparing the measured condition of the first component to the measured operating condition of the second component to determine whether sensor readings from the first component are indicative of a component operating within a normal range but indicative of impending sensor or component failure, logging an indication of an impending sensor or component failure as a fault in MPU memory if it occurs for a predetermined period of time and for more than a predetermined number of times and drive cycles, and activating a warning alert to an operator and initiating remedial actions responsive to the indication of impending component or sensor failure. The data logged includes time of fault, type of fault, number of occurrences of the fault, number of drive cycles where the fault occurred and distance traveled with the fault logged.

    摘要翻译: 一方面,本发明涉及一种用于操作车辆中的电子控制的内燃机以对至少一个传感器执行至少一个理性检查以检测即将发生的传感器故障并验证部件功能的方法。 发动机配备有具有存储器并与各种传感器电子通信的发动机控制系统(ECS)。 传感器将数据信号发送到指示相关发动机和车辆部件功能的ECS。 该方法包括从表示第一组件功能的传感器数据信号确定第一组件的测量操作条件,从表示第二组件功能的传感器数据信号确定第二组件的测量操作条件,将第一组件的测量条件与 第二部件的测量操作条件以确定来自第一部件的传感器读数是否指示在正常范围内操作的部件,但指示即将发生的传感器或部件故障,记录即将发生的传感器或部件故障的指示作为故障 MPU存储器,如果其发生预定时间段并且超过预定次数和驱动周期,并且激活对操作者的警告警报并响应于即将发生的组件或传感器故障的指示开始补救动作。 记录的数据包括故障时间,故障类型,故障发生次数,故障发生的驱动周期数以及记录故障的行驶距离。

    Redundant engine shutdown system
    9.
    发明授权

    公开(公告)号:US07072761B2

    公开(公告)日:2006-07-04

    申请号:US10526345

    申请日:2002-10-10

    IPC分类号: F02D17/04 F02D41/22 G06F19/00

    摘要: An engine shutdown system is provided that includes an engine control module (ECM) (12) having sensors (20, 22, 24, 26, 28, 30, 34, 36) that can activate an engine shutdown sequence. A set of redundant sensors (20′, 22′, 24′, 26′, 28′, 30′, 32′, 34′, 36′) and a redundant engine control module (RECM) (14) can also activate an engine shutdown sequence independent of the ECM. Engine operating parameters are monitored by sensors to determine if one of the engine parameters deviates from an acceptable level. If the engine control determines that a parameter has exceeded a predetermined level, an engine shutdown signal may be generated by either the ECM or RECM that may cut off the fuel supply, interrupt an ignition circuit, or activate external engine shutdown devices and may also activate alarm and message panels. A redundant engine shutdown system is also provided to disable the primary engine control unit.

    Method of estimating engine cooling fan power losses
    10.
    发明授权
    Method of estimating engine cooling fan power losses 失效
    估算发动机冷却风扇功率损耗的方法

    公开(公告)号:US06904352B2

    公开(公告)日:2005-06-07

    申请号:US10674008

    申请日:2003-09-29

    IPC分类号: B60T7/12 G01M15/00 G01M15/04

    CPC分类号: G01M15/04 F02D2200/1006

    摘要: A method for estimating engine torque loss due to a fan. A table of maximum fan torque losses is compiled at a plurality of engine speeds. An engine control unit (ECU) is configured with the table of maximum fan torque losses. A first maximum fan torque loss and a second maximum fan torque loss for an engine speed are retrieved from the table. A maximum fan torque loss for the engine speed is estimated by interpolating between the first maximum fan torque loss and the second maximum fan torque loss. An engine torque loss estimate is calculated by adjusting the maximum fan torque loss based on a set of predetermined fan characteristics.

    摘要翻译: 用于估计由于风扇引起的发动机扭矩损失的方法。 在多个发动机转速下编译最大风扇扭矩损失表。 发动机控制单元(ECU)配置有最大风扇扭矩损失表。 从表中检索第一最大风扇扭矩损失和发动机转速的第二最大风扇转矩损失。 通过在第一最大风扇转矩损耗和第二最大风扇转矩损失之间进行内插来估计发动机转速的最大风扇扭矩损失。 通过基于一组预定的风扇特性调节最大风扇转矩损失来计算发动机扭矩损失估计。