-
公开(公告)号：US06467469B2
公开(公告)日：2002-10-22
申请号：US09773040
申请日：2001-01-31
申请人： Chang Yang , Gregory R. White , Robert S. Henrich , Yue Yun Wang , John M. Janssen , Ray C. Hatton
发明人： Chang Yang , Gregory R. White , Robert S. Henrich , Yue Yun Wang , John M. Janssen , Ray C. Hatton
IPC分类号： F02M2507
CPC分类号： F02D41/0077 , F02B29/0406 , F02D2200/0404 , F02M26/05 , F02M26/23 , F02M26/48 , Y02T10/47
摘要： An EGR valve position control system includes an EGR valve manager responsive to an EGR valve command to drive an EGR valve actuator. The EGR valve manager is operable to schedule control gains as a function of valve actuation direction to provide for faster response during valve closing events. Valve closing events are also staged such that a large valve position step is followed by a steady ramp to the valve closed position to thereby prevent damage to the valve and/or valve seat. The EGR valve manager further includes a prioritized switching feature for strategically switching between closed and open loop control modes, and a forward gain adjustment feature responsive to battery voltage to maintain constant system DC gain under changing battery voltage conditions.
-
公开(公告)号：US4263652A
公开(公告)日：1981-04-21
申请号：US881985
申请日：1978-02-27
申请人： Robert S. Henrich
发明人： Robert S. Henrich
CPC分类号： F02D41/1495 , F02B77/086 , G01N33/007 , F02D41/1456
摘要： A method and apparatus for controlling the various functions of an internal combustion engine using a program-controlled microprocessor having a memory preprogrammed with various control laws and associated control schedules receives information concerning one or more engine-operating parameters such as manifold absolute pressure, throttle position, engine coolant temperature, air temperature, engine speed or period and the like. These parameters are sensed and then supplied to input circuits for signal conditioning and conversion into digital words usable by the microprocessor. The microprocessor system computes a digital command word indicative of a computer-commanded engine control operation and output circuitry responds to predetermined computer-generated commands and to the computed digital command words for converting them to corresponding pulse-width control signals for controlling such engine operations as fuel-injection ignition timing, proportional and/or on-off EGR control, or the like. The engine control system further includes an oxygen sensor feedback system for supplying signals indicative of the quantity of oxygen in the exhaust system of the engine back to the microprocessor for control purposes.In particular this disclosure relates to an oxygen sensor condition circuit which generates not only the bilevel output signals indicating the quality of oxygen in the exhaust system, but also generates an oxygen sensor inhibit signal which may be used in a control system to effectively disregard the output of the sensor and to apply fixed or preprogrammed conditions for controlling the air/fuel ratio. Typically the purpose of the inhibit signal is to indicate when the sensor is inoperable because of its operating temperature or its physical condition.
摘要翻译： 使用程序控制微处理器来控制内燃机的各种功能的方法和装置，所述程序控制的微处理器具有以各种控制规律和相关控制计划预编程的存储器，接收关于一个或多个发动机工作参数的信息，例如歧管绝对压力，节气门位置 发动机冷却液温度，空气温度，发动机转速或周期等。 感测这些参数，然后将其提供给用于信号调节的输入电路并转换成由微处理器可用的数字字。 微处理器系统计算指示计算机命令的发动机控制操作的数字命令字，并且输出电路响应于预定的计算机生成的命令和所计算的数字命令字，以将它们转换成对应的脉冲宽度控制信号，以控制这样的发动机操作， 燃料喷射点火正时，比例和/或开关EGR控制等。 发动机控制系统还包括氧传感器反馈系统，用于将指示发动机的排气系统中的氧气量的信号返回到微处理器用于控制目的。 特别地，本公开涉及一种氧传感器状态电路，其不仅产生表示排气系统中的氧气质量的二维输出信号，而且还产生可用于控制系统中的氧传感器禁止信号，以有效地忽略输出 并应用固定或预编程条件来控制空燃比。 通常，禁止信号的目的是指示何时传感器由于其工作温度或其物理状态而不可操作。
-
公开(公告)号：US4338651A
公开(公告)日：1982-07-06
申请号：US193333
申请日：1980-10-01
申请人： Robert S. Henrich
发明人： Robert S. Henrich
CPC分类号： H01F7/1827
摘要： A driver circuit, having boost and hold modes of operation, for a solenoid having a high and a low impedance coil wherein the coils are so situated such that their respective magnetic fields are additive and wherein the driver circuit is responsive to input metering pulse width signals and includes means for modifying the duration of each pulse width signal to generate a boost pulse signal to excite the low impedance coil in correspondence with the variations in the battery voltage. The driver circuit further includes means for permitting the current flowing through the low impedance coil into flow into a high impedance coil and means for regulating the value of current flowing therethrough at a determinable value. The driver circuit further includes means for reducing the current droop occurring upon the transition from the boost mode of operation to the hold mode of operation.
摘要翻译： 一种具有升压和保持操作模式的驱动器电路，用于具有高阻抗线圈和低阻抗线圈的螺线管，其中线圈被定位成使得它们各自的磁场是相加的，并且其中驱动器电路响应输入的计量脉冲宽度信号 并且包括用于修改每个脉冲宽度信号的持续时间以产生升压脉冲信号的装置，以根据电池电压的变化激励低阻抗线圈。 驱动器电路还包括用于允许流过低阻抗线圈的电流流入高阻抗线圈的装置，以及用于以可确定值调节流过其中的电流值的装置。 驱动器电路还包括用于减小从升压操作模式转换到保持操作模式时发生的电流下降的装置。
-
4.发明授权System for integrally controlling current flow through number of inductive loads 失效用于通过多个感性负载整流控制电流的系统
公开(公告)号：US5752482A
公开(公告)日：1998-05-19
申请号：US828356
申请日：1997-03-28
CPC分类号： F02D41/20 , F02D41/36 , H01F7/1877 , F02D13/0253 , F02D13/04 , F02D2041/001 , F02D2041/2058 , F02D2041/2079 , Y02T10/44
摘要： A load driver system for integrally controlling the flow of current through a number of inductive loads of an internal combustion engine, particularly the flow of current through a fuel injector solenoid and an engine brake solenoid during the operation of an engine cylinder, is provided. In one embodiment of the load driver system, a single multiplexed high side driver is connected to inputs of both solenoids, and separate low side drivers are connected to outputs of each of the solenoids. In an alternative embodiment, separate high side drivers are connected to inputs of each of the solenoids, and a single multiplexed low side driver is connected to the outputs of the solenoids. In another alternative embodiment, a single multiplexed high side driver is connected to the input of the fuel injector solenoid, the input of the engine brake solenoid is connected to the output of the fuel injector solenoid, and separate low side drivers sharing a common sense resistor are connected to outputs of each of the solenoids.
摘要翻译： 提供一种负载驱动器系统，用于在发动机气缸的操作期间，一体地控制通过内燃机的多个感应负载的电流流动，特别是通过燃料喷射螺线管和发动机制动螺线管的电流。 在负载驱动器系统的一个实施例中，单个多路复用高侧驱动器连接到两个螺线管的输入，并且单独的低侧驱动器连接到每个螺线管的输出。 在替代实施例中，单独的高侧驱动器连接到每个螺线管的输入，并且单个多路复用低侧驱动器连接到螺线管的输出。 在另一替代实施例中，单个多路复用的高侧驱动器连接到燃料喷射器螺线管的输入端，发动机制动螺线管的输入端连接到燃料喷射器螺线管的输出端，并且分开的共同感测电阻器的低侧驱动器 连接到每个螺线管的输出端。
-
公开(公告)号：US4258324A
公开(公告)日：1981-03-24
申请号：US10572
申请日：1979-02-09
申请人： Robert S. Henrich
发明人： Robert S. Henrich
IPC分类号： F02P7/067 , F02P7/077 , G01P3/48 , H03K5/1536 , F02P17/00
CPC分类号： F02P7/0775 , F02P7/0675 , G01P3/4802 , H03K5/1536
摘要： A signal conditioning circuit for the output of a magnetic position sensor is disclosed. The magnetic sensor generates a total output signal that increases as a function of the rotational velocity of the sensor with a spurious noise component that is a relatively constant percentage of the actual signal voltage over the speed range. In a preferred embodiment, the signal conditioning circuit discriminates between the noise component and the signal component by comparing the total signal to a variable threshold only after a positive going zero cross. The variable threshold is generated as a function of the peak amplitude of the total signal. In a second embodiment the signal conditioning circuit includes gain control means which varies the amplitude of the total output signal as a function of its peak to maintain the threshold above the noise component.
摘要翻译： 公开了一种用于输出磁性位置传感器的信号调节电路。 磁传感器产生总输出信号，其作为传感器的旋转速度的函数而增加，其中杂散噪声分量是在速度范围内实际信号电压的相对恒定百分比。 在优选实施例中，信号调理电路通过仅在正向零交叉之后将总信号与可变阈值进行比较来鉴别噪声分量和信号分量。 可变阈值是根据总信号的峰值幅度产生的。 在第二实施例中，信号调节电路包括增益控制装置，该增益控制装置根据其峰值改变总输出信号的幅度，以将阈值维持在高于噪声分量的阈值。
-
公开(公告)号：US4486703A
公开(公告)日：1984-12-04
申请号：US423937
申请日：1982-09-27
申请人： Robert S. Henrich
发明人： Robert S. Henrich
IPC分类号： F02D41/34 , F02D41/20 , F02D41/30 , F02D41/36 , F02D45/00 , G05F7/00 , H02M9/02 , H03K17/64 , G05F1/10
CPC分类号： F02D41/3005 , H03K17/64 , F02D2041/2006 , F02D2041/201 , F02D2041/2013 , F02D2041/2017 , F02D2041/2041 , F02D2041/2058 , F02D2041/2093
摘要： Circuitry (20) for activating fuel injectors (50) of an internal combustion engine including a plurality of switching circuits (60) for turning on and off associated hybrid power circuits (80). The hybrid power circuits (80) communicate the increased level of voltage generated by a single boost voltage generator (70) to particular injectors (50).
摘要翻译： 一种用于启动内燃机的燃料喷射器（50）的电路（20），所述燃料喷射器包括用于打开和关闭相关联的混合动力电路（80）的多个开关电路（60）。 混合电源电路（80）将由单个升压电压发生器（70）产生的电压的增加的电平传送到特定的注入器（50）。
-
公开(公告)号：US4245315A
公开(公告)日：1981-01-13
申请号：US881984
申请日：1978-02-27
CPC分类号： F02P15/008
摘要： A method and apparatus for controlling the various functions of an internal combustion engine using a program controlled microprocessor having a memory preprogrammed with various control laws and associated control schedules receives information concerning one or more engine-operating parameters such as manifold absolute pressure, throttle position, engine coolant temperature, air temperature, engine speed or period and the like. These parameters are measured and their value or status is supplied to input circuits for signal conditioning and conversion into digital words usable by the microprocessor. The microprocessor system computes a digital word indicative of a particular computer-commanded engine control operation and output circuitry responds to predetermined computer-generated commands and to the computed digital words for converting it into a corresponding pulse-width control signal for controlling such engine operations as fuel-injection, ignition timing, proportional and/or on-off EGR control, and the like. The engine control system further includes "limp home" circuitry for enabling the engine to function for a predetermined time even after the microprocessor fails to enable the vehicle to get to a place of repair or the like.
摘要翻译： 一种使用程序控制微处理器来控制内燃机的各种功能的方法和装置，所述程序控制的微处理器具有预编程有各种控制规律和相关控制计划的存储器，接收关于一个或多个发动机工作参数的信息，例如歧管绝对压力，节气门位置， 发动机冷却液温度，空气温度，发动机转速或周期等。 测量这些参数，并将它们的值或状态提供给用于信号调节的输入电路并转换成微处理器可使用的数字字。 微处理器系统计算指示特定计算机命令的引擎控制操作的数字字，并且输出电路响应于预定的计算机生成的命令和所计算的数字字，以将其转换成对应的脉冲宽度控制信号，以控制这样的发动机操作， 燃料喷射，点火正时，比例和/或开关EGR控制等。 发动机控制系统还包括“跛脚回家”电路，使得即使在微处理器不能使车辆进入修理等之后，发动机也能够工作预定时间。
-
公开(公告)号：US4479161A
公开(公告)日：1984-10-23
申请号：US423936
申请日：1982-09-27
CPC分类号： H01H47/325 , F02D41/3005 , F02D2041/2003 , F02D2041/2006 , F02D2041/201 , F02D2041/2013 , F02D2041/2017 , F02D2041/2041 , F02D2041/2058 , F02D2041/2093
摘要： A switching type control unit (20) for activating fuel injectors (50) of an internal combustion engine. The control unit (20) including a plurality of switching circuits (60) for turning on and off associated hybrid power circuits (80). The hybrid power circuits (80) communicate the increased level of voltage generated by a single boost voltage generator (70) to particular injectors (50).
摘要翻译： 一种用于启动内燃机的燃料喷射器（50）的开关型控制单元（20）。 所述控制单元（20）包括用于接通和断开相关混合电力电路（80）的多个开关电路（60）。 混合电源电路（80）将由单个升压电压发生器（70）产生的电压的增加的电平传送到特定的注入器（50）。
-
公开(公告)号：US4245314A
公开(公告)日：1981-01-13
申请号：US881922
申请日：1978-02-27
CPC分类号： F02P5/1502 , F02D41/28 , F02D41/0047 , Y02T10/46
摘要： A method and apparatus for controlling the various functions of an internal combustion engine using a program-controlled microprocessor system having a memory preprogrammed with various control laws and associated control schedules receives information concerning one or more engine-operating parameters such as manifold pressure, throttle position, engine coolant temperature, air temperature, engine speed or period, and the like. These parameters are sensed and then supplied to input circuits for signal conditioning and conversion into digital words usable by the microprocessor system. The microprocessor system computes a digital command word indicative of a computer-commanded engine control operation and output circuitry responds to predetermined computer-generated commands and to the computed digital command word for converting them to corresponding pulse-width control signals for controlling such engine operations as fuel-injection, ignition timing, proportional and/or on-off EGR control, and the like.In particular an oxygen sensor qualifier system is described wherein the quality of the sensor is determined during engine operation.
摘要翻译： 一种使用程序控制的微处理器系统来控制内燃机的各种功能的方法和装置，所述程序控制的微处理器系统具有用各种控制规律和相关的控制计划预编程的存储器，接收关于一个或多个发动机运行参数的信息，例如歧管压力，节气门位置 发动机冷却液温度，空气温度，发动机转速或周期等。 这些参数被检测，然后被提供给用于信号调节的输入电路并转换成由微处理器系统可用的数字字。 微处理器系统计算指示计算机命令的发动机控制操作的数字命令字，并且输出电路响应于预定的计算机生成的命令和所计算的数字命令字，以将它们转换成相应的脉冲宽度控制信号，以控制诸如 燃料喷射，点火正时，比例和/或开关EGR控制等。
-
公开(公告)号：US4169232A
公开(公告)日：1979-09-25
申请号：US828806
申请日：1977-08-29
申请人： Robert S. Henrich
发明人： Robert S. Henrich
CPC分类号： F02P17/04 , F02P7/0675 , G01P3/4802 , H03K5/1536
摘要： A signal conditioning circuit for the output of a magnetic position sensor is disclosed. The magnetic sensor generates a total output signal that increases as a function of the rotational velocity of the sensor with a spurious noise component that is a relatively constant percentage of the actual signal voltage over the speed range. In a preferred embodiment, the signal conditioning circuit discriminates between the noise component and the signal component by comparing the total signal to a variable threshold only after a positive going zero cross. The variable threshold is generated as a function of the peak amplitude of the total signal. In a second embodiment the signal conditioning circuit includes gain control means which varies the amplitude of the total output signal as a function of its peak to maintain the threshold above the noise component.
摘要翻译： 公开了一种用于输出磁性位置传感器的信号调节电路。 磁传感器产生总输出信号，其作为传感器的旋转速度的函数增加，其中杂散噪声分量是在速度范围内实际信号电压的相对恒定百分比。 在优选实施例中，信号调理电路通过仅在正向零交叉之后将总信号与可变阈值进行比较来鉴别噪声分量和信号分量。 可变阈值是根据总信号的峰值幅度产生的。 在第二实施例中，信号调节电路包括增益控制装置，该增益控制装置根据其峰值改变总输出信号的幅度，以将阈值维持在高于噪声分量的阈值。
-
-
-
-
-
-
-
-
-
搜索结果
10 条记录 (耗时 0.012 秒)
