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公开(公告)号：US4757747A
公开(公告)日：1988-07-19
申请号：US901816
申请日：1986-08-29
申请人： Albert Blatter , Jeffrey P. Cherry , Ronald E. Chipp , James A. Kessler , Richard S. Leemhuis , John A. Miller , Melvin A. Rode , Gene Y. Wen
发明人： Albert Blatter , Jeffrey P. Cherry , Ronald E. Chipp , James A. Kessler , Richard S. Leemhuis , John A. Miller , Melvin A. Rode , Gene Y. Wen
IPC分类号： F15B21/02 , F15B9/17 , F15B13/043 , G05B19/414 , F15B13/16
CPC分类号： G05B19/414 , G05B2219/33142 , G05B2219/33273 , G05B2219/34215 , G05B2219/34466 , G05B2219/37291 , G05B2219/41301 , G05B2219/42237
摘要： An electrohydraulic system includes a plurality of electrohydraulic devices individually controlled by on-board microprocessor-based control electronics. Each individual device controller is connected to and addressable by a master controller for coordinating operation of the various devices. An electrohydraulic servo valve assembly includes a hydraulic manifold having a valve spool variably positionable therein under control of a torque motor. A microprocessor-based controller is connected to the torque motor and is mounted on the manifold by a cover which encloses and protects both the controller and the torque motor. A watchdog timer in the microprocessor-based controller monitors pulsewidth modulated signals to the torque motor for terminating operation in the event of signal loss. In a preferred embodiment of the invention, the servo valve assembly is coupled to a linear actuator which has its position monitored by an electroacoustic transducer. Improved electronics couple the transducer to the control microprocessor.
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公开(公告)号：US4917213A
公开(公告)日：1990-04-17
申请号：US364871
申请日：1989-06-12
CPC分类号： B66F11/046
摘要： An electrohydraulic control system that includes a plurality of electrohydraulic devices coupled to a remote master controller by a high-speed serial communication bus. The bus has a serial differential transmission line, and a control line for indicating impending transmission of data from one controller and conditioning the other controllers to receive information. Sections of the communication bus are electrically isolated from each other, while maintaining data and control line signal integrity therebetween, by electro-optical interface modules that include transmitters and receivers interconnected by lengths of fiber optic line, and interface drivers having signal ports respectively interconnecting the fiber optic transmitters and receivers to associated sections of the communication bus. An oscillator in the interface module at the isolated end of the bus cooperates with a filter in the module at the bus end of the optic fibers to condition the interface driver at the bus end to receive or transmit data from or to the bus as a function of the transmit/receive control output from the isolated controller. Interconnection is thus accomplished employing only a pair of fiber optic transmitters and receivers, and a pair of fiber optic lines, greatly reducing the cost that would otherwise be incurred if the transmit/receive control line were handled by separate fiber optics.
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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。
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4.发明授权Electrohydraulic distributed control system with identical master and slave controllers 失效具有相同主从控制器的电液分布式控制系统
公开(公告)号：US5249140A
公开(公告)日：1993-09-28
申请号：US696612
申请日：1991-05-07
申请人： James A. Kessler
发明人： James A. Kessler
IPC分类号： G05B19/042 , G05B19/46
CPC分类号： G05B19/0421 , G05B19/46
摘要： A control module adapted for use as either a master controller or device controller in a distributed electrohydraulic system includes a microprocessor-based control circuit with digital memory having stored therein a plurality of programs for controlling operation of the controller in a variety of applications. A plurality of analog inputs provide a mechanism for connecting sensor signals or the like to input ports of the control microprocessor. A plurality of electrohydraulic valve driver circuits have inputs for receiving valve control signals from the control microprocessor, and outputs for selective connection to electrohydraulic valves coupled to the devices to be controlled. Serial communication circuitry is coupled to the control microprocessor and adapted for connection to a high-speed electrohydraulic bus. A plurality of control routines are prestored in a memory library, as is an executive routine that is employed for operating the microprocessor whether the controller is configured as a master or a device controller. To configure a controller for operation as a master controller or device controller, and to configure the controller for operation in association with a specific type of electrohydraulic device or devices, a selectively programmable and reprogrammable subroutine list coordinates the executive routine with the various control subroutines in the control library for interrelating the analog input signals, the serial communication signals and/or the valve control output signals so as to dedicate operation of the controller as a master controller or as a device controller for a specific type of electrohydraulic device.
摘要翻译： 适于在分布式电动液压系统中用作主控制器或设备控制器的控制模块包括具有数字存储器的基于微处理器的控制电路，其中存储有用于控制各种应用中的控制器的操作的多个程序。 多个模拟输入提供用于将传感器信号等连接到控制微处理器的输入端口的机构。 多个电动液压阀驱动器电路具有用于接收来自控制微处理器的阀控制信号的输入，并且输出用于选择性地连接到耦合到待控制的装置的电液阀。 串行通信电路耦合到控制微处理器并且适于连接到高速电动液压总线。 多个控制例程预先存储在存储器库中，以及用于操作微处理器的执行程序，无论控制器是配置为主机还是设备控制器。 要配置控制器作为主控制器或设备控制器运行，并将控制器配置为与特定类型的电液装置或设备相关联的操作，可选择可编程和可重新编程的子程序列表将执行程序与各种控制子程序 用于将模拟输入信号，串行通信信号和/或阀控制输出信号相互关联的控制库，以便将控制器的操作专用于主控制器或作为特定类型的电动液压装置的装置控制器。
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公开(公告)号：US5135031A
公开(公告)日：1992-08-04
申请号：US769112
申请日：1991-09-30
申请人： Roy T. Burgess , Rajamouli Gunda , Frank Herta , Robert C. Hodges , James A. Kessler , Richard S. Leemhuis , Michael R. McCarty , Robert W. Stephens
发明人： Roy T. Burgess , Rajamouli Gunda , Frank Herta , Robert C. Hodges , James A. Kessler , Richard S. Leemhuis , Michael R. McCarty , Robert W. Stephens
CPC分类号： G05D16/2066 , F04B49/065 , F04B2201/1201 , F04B2201/12051 , F04B2205/05 , F04B2207/01 , F04B2207/0422 , Y10T137/86622
摘要： A rotary hydraulic machine which includes a housing having a shaft mounted for rotation within the housing about a shaft axis. A cylinder block is coupled to the shaft for co-rotation with the shaft within the housing and includes a plurality of cylinders disposed in a circumferential array parallel to and surrounding the shaft axis. A piston is disposed to reciprocate within each of the cylinders and is coupled to a yoke for determining displacement of the pistons within the cylinders. A valve plate is mounted on a valve block and includes kidney-shaped slots for registering with the cylinders as the cylinder block rotates, and thereby connecting the cylinders to pump input and output ports. A microprocessor-based controller is externally mounted on the pump valve block and includes internal memory having various remotely-selectable control programs prestored therein. Sensors responsive to pump operating conditions are connected to the pump control electronics, and include a first sensor responsive to yoke position, a pressure sensor responsive to pump output pressure and a speed sensor responsive to angular velocity of shaft rotation. All of the electronic components are mounted on the valve block.
摘要翻译： 一种旋转液压机，其包括具有轴的壳体，所述轴安装成用于在所述壳体内围绕轴线旋转。 气缸体联接到轴上，用于与壳体内的轴共同旋转，并且包括多个圆筒，该圆柱体设置成平行于并围绕轴线的周向阵列。 活塞被设置成在每个气缸内往复运动，并且联接到轭，以确定活塞在气缸内的位移。 阀板安装在阀块上，并且在气缸体旋转时包括用于与气缸配准的肾形槽，从而将气缸连接到泵输入和输出端口。 基于微处理器的控制器外部安装在泵阀块上，并且包括其中预先存储有各种可远程选择的控制程序的内部存储器。 响应于泵操作条件的传感器连接到泵控制电子器件，并且包括响应于轭位置的第一传感器，响应于泵输出压力的压力传感器和响应于轴旋转的角速度的速度传感器。 所有电子部件安装在阀块上。
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公开(公告)号：US5073091A
公开(公告)日：1991-12-17
申请号：US412211
申请日：1989-09-25
申请人： Roy T. Burgess , Rajamouli Gunda , Frank Herta , Robert C. Hodges , James A. Kessler , Richard S. Leemhuis , Michael R. McCarty , Robert W. Stephens
发明人： Roy T. Burgess , Rajamouli Gunda , Frank Herta , Robert C. Hodges , James A. Kessler , Richard S. Leemhuis , Michael R. McCarty , Robert W. Stephens
CPC分类号： G05D16/2066 , F04B49/065 , F04B2201/1201 , F04B2201/12051 , F04B2205/05 , F04B2207/01 , F04B2207/0422
摘要： A rotary hydraulic machine which includes a housing having a shaft mounted for rotation within the housing about a shaft axis. A cylidner block is coupled to the shaft for co-rotation with the shaft within the housing and includes a plurality of cylinders disposed in a circumferential array parallel to and surrounding the shaft axis. A piston is disposed to reciprocate within each of the cylinders and is coupled to a yoke for determining displacement of the pistons within the cylinders. A valve plate is mounted on a valve block and includes kidney-shaped slots for registering with the cylinders as the cylinder block rotates, and thereby connecting the cylinders to pump input and output ports. A microprocessor-based controller is externally mounted on the pump valve block and includes internal memory having various remotely-selectable control programs prestored therein. Sensors responsive to pump operating conditions are connected to the pump control electronics, and include a first sensor responsive to yoke position, a pressure sensor responsive to pump output pressure and a speed sensor responsive to angular velocity of shaft rotation. All of the electronic components are mounted on the valve block.
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7.发明授权Oxygen sensor feedback loop digital electronic signal integrator for internal combustion engine control 失效氧传感器反馈回路数字电子信号积分器，用于内燃机控制
公开(公告)号：US4276600A
公开(公告)日：1981-06-30
申请号：US881981
申请日：1978-02-27
CPC分类号： F02D41/2454 , F02D41/1482 , F02D41/28
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 pressure, throttle position, engine coolant temperature, air temperature, and engine speed or period and the like. These parameters are sensed or measured and then the value thereof is supplied to input circuits for signal conditioning and conversion to digital words usable by the microprocessor. The microprocessor system computes digital control words indicative of particular computer-commanded engine control operations and output circuitry responds to predetermined computer-generated commands and to the computed digital command words for converting them into 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. The engine control system further includes an oxygen sensor feedback system for providing reliable data to said microprocessor for command control purposes. In particular the oxygen sensor signal is sampled a predetermined number of times per each engine revolution and the totality of each sampling is determined per revolution. This generates a digital word representing the condition of the air/fuel ratio of the engine over each revolution.
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，例如歧管压力，节气门位置， 发动机冷却液温度，空气温度和发动机转速或周期等。 这些参数被感测或测量，然后其值被提供给用于信号调节和转换成由微处理器可用的数字字的输入电路。 微处理器系统计算指示特定计算机命令的发动机控制操作的数字控制字，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，以控制诸如燃料的发动机操作 注射，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，用于向所述微处理器提供用于命令控制目的的可靠数据。 特别地，每个发动机转数对氧传感器信号进行预定次数的采样，并且每一周确定每次采样的总和。 这产生一个数字字表示每转一次发动机的空燃比条件。
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