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公开(公告)号：US20110141642A1
公开(公告)日：2011-06-16
申请号：US12740100
申请日：2009-07-17
IPC分类号： H02H9/02
CPC分类号： F02D41/20 , F02D41/22 , F02D2041/2058 , F02D2041/2093 , H03K17/0822 , H03K17/18 , Y02T10/40
摘要： A layer short-circuit of a switch element such as a FET included in an electromagnetic load circuit is detected to accurately perform a failure diagnosis of the electromagnetic load circuit. A failure diagnosis circuit 101 is provided which detects a layer short-circuit in which a high-side switch element, a low-side switch element, or an electromagnetic load itself short-circuits with a power supply voltage terminal or a ground in a state of having a predetermined impedance to perform a failure diagnosis.
摘要翻译： 检测包括在电磁负载电路中的诸如FET的开关元件的层短路以精确地执行电磁负载电路的故障诊断。 提供故障诊断电路101，其检测高侧开关元件，低侧开关元件或电磁负载本身在状态下与电源电压端子或接地短路的层短路 具有预定阻抗以执行故障诊断。
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公开(公告)号：US20070002505A1
公开(公告)日：2007-01-04
申请号：US11471660
申请日：2006-06-21
申请人： Mitsuhiko Watanabe , Katsuya Oyama , Shoji Sasaki
发明人： Mitsuhiko Watanabe , Katsuya Oyama , Shoji Sasaki
IPC分类号： H02H7/08
CPC分类号： H02M7/53873 , H02M2001/0009
摘要： A motor control system which can realize current detection with high accuracy by using an amplifier having an ordinary level of accuracy and can avoid deterioration of current detection accuracy even when emperature is changed. The motor control system comprises a switch circuit for supplying a driving current to a motor, a resistor for detecting the driving current, an amplification circuit for amplifying a potential difference across the resistor, an input section switch unit disposed in an input section of the amplification circuit and changing over the potential difference to be forward biased or reverse biased, an output section switch unit disposed in an output section of the amplification circuit and changing over an output voltage of the amplification circuit to be forward biased or reverse biased, and a CPU for averaging a voltage produced when the output voltage of the amplification circuit is forward biased, and a voltage produced when the output voltage of the amplification circuit is reverse biased.
摘要翻译： 一种电动机控制系统，其可以通过使用具有普通精度的放大器以高精度实现电流检测，并且即使在温度改变时也可以避免电流检测精度的劣化。 电动机控制系统包括用于向电动机提供驱动电流的开关电路，用于检测驱动电流的电阻器，用于放大电阻器两端的电位差的放大电路，设置在放大器的输入部分中的输入部分开关单元 将所述电位差转换为正向偏置或反向偏置;输出部分开关单元，设置在所述放大电路的输出部分中，并且将所述放大电路的输出电压切换为正向偏置或反向偏置;以及CPU 用于平均当放大电路的输出电压正向偏置时产生的电压，以及当放大电路的输出电压被反向偏置时产生的电压。
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公开(公告)号：US08188712B2
公开(公告)日：2012-05-29
申请号：US12332763
申请日：2008-12-11
申请人： Chihiro Sato , Mitsuhiko Watanabe , Ko Moriya , Hirofumi Kurimoto
发明人： Chihiro Sato , Mitsuhiko Watanabe , Ko Moriya , Hirofumi Kurimoto
CPC分类号： H02M3/1582
摘要： There is a need for improving switching regulator characteristics and providing a stable power supply controller. The power supply controller uses a battery and either or both functions of stepping up and stepping down a battery voltage. The power supply controller includes a means that prevents a ripple voltage from occurring by stopping the up conversion function for a switching operation in connection with a battery during a predetermined period without changing conditions for a conventional switching device or smoothing circuit and fast stabilizes a primary voltage using only the down conversion function.
摘要翻译： 需要改进开关稳压器特性并提供稳定的电源控制器。 电源控制器使用电池，以及升压和降低电池电压的一种或两种功能。 电源控制器包括通过在预定时间段期间停止与电池连接的开关操作的上变频功能而不改变常规开关器件或平滑电路的条件并且快速稳定初级电压来防止纹波电压发生的装置 只使用下转换功能。
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公开(公告)号：US20110023835A1
公开(公告)日：2011-02-03
申请号：US12832814
申请日：2010-07-08
CPC分类号： F02D41/22 , F02D41/20 , F02D41/221 , F02D41/28 , F02D2041/2058 , F02D2041/2065 , F02D2041/2086 , F02D2041/2093 , F02D2041/224 , Y02T10/40
摘要： In an internal combustion engine controller, a clock trouble determination signal from a clock trouble determining circuit that diagnoses any clock input trouble is transmitted in parallel with an abnormality diagnosis signal outputted from an abnormality diagnosing circuit and causes it to be inputted to a trouble/abnormality signal output circuit, and the trouble/abnormality signal output circuit achieves logical summing to output one line of resultant trouble/abnormality output OR signals to a microprocessor (MP). The MP outputs to the trouble/abnormality signal output circuit a trouble/abnormality confirmation input signal, and makes definite any of an abnormal state, a clock trouble state and a normal state based on the result of switching control of the status level of the pertinent trouble/abnormality output OR signal.
摘要翻译： 在内燃机控制器中，来自诊断任何时钟输入故障的时钟故障判定电路的时钟故障判定信号与从异常诊断电路输出的异常诊断信号并行发送，并将其输入到故障/异常 信号输出电路，故障/异常信号输出电路实现逻辑求和，将一行合成故障/异常输出OR信号输出到微处理器（MP）。 MP向故障/异常信号输出电路输出故障/异常确认输入信号，并且基于相关的状态级别的切换控制的结果，确定任何异常状态，时钟故障状态和正常状态 故障/异常输出OR信号。
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公开(公告)号：US07784445B2
公开(公告)日：2010-08-31
申请号：US12257074
申请日：2008-10-23
IPC分类号： F02M51/00
CPC分类号： F02D41/20 , F02D41/221 , F02D2041/2013 , F02D2041/2044 , F02D2041/2058 , F02D2041/2093 , F02D2041/227 , Y02T10/40
摘要： There is proposed a control unit for an internal combustion engine, which comprises a boost circuit, a switching element, a current detecting resistor and a controller and is designed to be actuated such that the boost circuit is used to boost a power source voltage to create a boosted voltage and the controller is used to control the switching element so as to enable the boosted voltage to flow to the injector solenoid coil. This control unit is designed such that, when the boost circuit goes out of order, the injector solenoid coil is excited by making use of the power source voltage without using the boosted voltage and without creating a peak current to thereby generate a first holding current required for opening the injector and a second holding current required for retaining the opened state of the injector, the second holding current being lower in intensity than the first holding current.
摘要翻译： 提出了一种用于内燃机的控制单元，其包括升压电路，开关元件，电流检测电阻器和控制器，并被设计为被致动，使得升压电路用于提高电源电压以产生 升压电压，并且控制器用于控制开关元件，以便使升压的电压能够流到喷射器螺线管线圈。 该控制单元被设计成使得当升压电路不顺序时，通过利用电源电压而不使用升压电压而激励喷射器螺线管线圈，并且不产生峰值电流，从而产生所需的第一保持电流 用于打开喷射器和保持喷射器的打开状态所需的第二保持电流，第二保持电流的强度低于第一保持电流。
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公开(公告)号：US20090079435A1
公开(公告)日：2009-03-26
申请号：US12191618
申请日：2008-08-14
CPC分类号： H02M3/156
摘要： According to the present invention, the operation of a diagnostic circuit within a load drive circuit, which has been built into an electronic control device, is checked without modifying the electronic control device or the like. The load drive circuit, which drives a load such as a solenoid using a DC power supply as a power supply, includes a drive circuit and a diagnostic circuit which is independently provided within the drive circuit. Upon input of a drive-stop signal from a control circuit that controls the drive circuit, the operation of at least the drive circuit stops, so that whether the diagnostic circuit, which diagnoses the condition of the load, is normally operating or not is checked in a condition in which the load drive circuit has been built into the electronic control device.
摘要翻译： 根据本发明，在不改变电子控制装置等的情况下，检查内置于电子控制装置中的负载驱动电路内的诊断电路的动作。 使用直流电源驱动诸如螺线管的负载作为电源的负载驱动电路包括独立地设置在驱动电路内的驱动电路和诊断电路。 在从控制驱动电路的控制电路输入驱动停止信号时，至少检测驱动电路的动作停止，检查诊断负载状态的诊断电路是否正常运转 在负载驱动电路已经被内置到电子控制装置中的状态下。
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7.发明授权Magnetic recording and reproducing unit with selection of reproduced image signals 失效具有选择再现图像信号的磁记录和再现单元
公开(公告)号：US5432648A
公开(公告)日：1995-07-11
申请号：US41002
申请日：1993-03-30
IPC分类号： G11B15/12 , G11B15/18 , H04N5/7826 , H04N5/783 , H04N5/78
CPC分类号： H04N5/78263 , G11B15/1875 , H04N5/783 , G11B15/125
摘要： The present invention provides a magnetic recording and reproducing unit of a helical scan type having a slow speed tape running mode in which the speed of running a magnetic tape is slower than that of a standard running mode. The magnetic recording and reproducing unit of the present invention has a pair of azimuth heads of mutually different azimuthal angles which are mutually adjacently disposed on the outer periphery of a rotating cylinder and another pair of azimuth heads of mutually different azimuthal angles which are mutually adjacently disposed at positions symmetrical with the first pair of azimuth heads with respect to a rotating center of the rotating cylinder. Each pair of the two pairs of azimuth heads alternately traces tracks recorded with image signals on a magnetic tape to reproduce the recorded image signals. Further, the magnetic recording and reproducing unit of the present invention has a control head for reproducing from the magnetic tape a control signal which is synchronous with a header position of the recorded tracks, a traced azimuth predicting signal generating unit for generating a predetermined azimuth change over signal in response to the control signal, and a switching unit for selecting one of reproduced image signals from the pair of azimuth heads according to the change over signal in the slow speed running mode.
摘要翻译： 本发明提供一种具有慢速磁带运行模式的螺旋扫描类型的磁记录和再现单元，其中运行磁带的速度比标准运行模式慢。 本发明的磁记录和重放单元具有相互不同的方位角的一对方位角，它们彼此相邻地设置在旋转圆筒的外周上，另一对相互不同的方位角的方位角相互相邻地设置 在与第一对方位头相对于旋转圆筒的旋转中心对称的位置处。 两对方位角中的每一对交替地在磁带上跟踪记录有图像信号的轨迹，以再现记录的图像信号。 此外，本发明的磁记录再现装置具有控制头，用于从磁带再现与记录磁道的标题位置同步的控制信号，跟踪的方位预测信号产生单元，用于产生预定的方位变化 响应于控制信号的切换信号;以及切换单元，用于根据慢速运行模式中的切换信号从一对方位头中选择一个再现图像信号。
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公开(公告)号：US20120194961A1
公开(公告)日：2012-08-02
申请号：US13363414
申请日：2012-02-01
IPC分类号： H01H47/00
CPC分类号： F02D41/20 , F02D2041/2058
摘要： An injector drive circuit including: a step-up circuit generating a high voltage from a power supply; a first switching device connected to a path between the step-up circuit and an injector; a second switching device connected to the power supply; a third switching device connected between the injector and the ground; and a control unit operating the first, second and third switching device according to a value of current flowing through the injector; wherein the control unit has a unit turning on and off the second switching device in a period during which it turns on and off the first switching device a plurality of times; wherein the control unit has, as set values to control the current flowing through the injector, a first threshold defining a lower current limit, a second threshold defining an upper current limit and a third threshold, larger than the second threshold.
摘要翻译： 一种喷射器驱动电路，包括：从电源产生高电压的升压电路; 连接到升压电路和喷射器之间的路径的第一开关装置; 连接到所述电源的第二开关装置; 连接在喷射器和地面之间的第三开关装置; 以及控制单元，其根据流过所述喷射器的电流的值来操作所述第一，第二和第三开关装置; 其中所述控制单元具有在第一开关装置多次接通和断开的期间内接通和断开所述第二开关装置的单元; 其中，所述控制单元具有作为控制流过所述喷射器的电流的设定值，所述第一阈值定义了大于所述第二阈值的限定较低电流限制的第一阈值，限定上限电流和第三阈值的第二阈值。
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公开(公告)号：US08045311B2
公开(公告)日：2011-10-25
申请号：US12336941
申请日：2008-12-17
IPC分类号： H02H3/20
CPC分类号： H03K17/0822 , H03K17/18
摘要： A load driving and diagnosis system controls the feed and block of a load current flowing into an inductor such as a solenoid. The load driving and diagnosis system holds a counter-electromotive force, which is developed when the load current is blocked, at a voltage higher than a supply voltage so that the load current will decay for a short time. When an overcurrent condition is established in the load driving and diagnosis system because of a short circuit to a power supply, a malfunction of a circuit or destruction thereof may take place. In addition to a voltage holding means that holds a switching circuit output voltage at a predetermined voltage, a voltage holding means having a different predetermined voltage set therein is included. Moreover, a selection switch that switches the predetermined voltages according to a detected overcurrent condition is included.
摘要翻译： 负载驱动和诊断系统控制流入诸如螺线管的电感器的负载电流的馈送和阻塞。 负载驱动和诊断系统保持反电动势，当负载电流被阻塞时，反电动势处于高于电源电压的电压，使得负载电流将在短时间内衰减。 当由于电源短路而在负载驱动和诊断系统中建立过电流状况时，可能发生电路的故障或其破坏。 除了将开关电路输出电压保持在预定电压的电压保持装置之外，还包括具有不同的预定电压的电压保持装置。 此外，包括根据检测到的过电流条件切换预定电压的选择开关。
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公开(公告)号：US20100242920A1
公开(公告)日：2010-09-30
申请号：US12708379
申请日：2010-02-18
CPC分类号： F02D41/20 , F02D41/221 , F02D2041/2003 , F02D2041/2006 , F02D2041/201 , F02D2041/2017 , F02D2041/2031 , F02D2041/2048 , F02D2041/2058 , Y02T10/40
摘要： There is provided an internal combustion engine controller that realizes a reduction in maximum current value and current regulation without sacrificing boost performance. An internal combustion engine controller 100 comprises: a boost coil 101 configured to boost a voltage VB of a battery power source; a boost switch element 106 configured to switch between causing a current to flow and stopping a current from flowing through the boost coil 101; and a current detection portion 126 configured to detect a current flowing through the boost switch element 106, wherein boost control is effected by repeating the switching of the switch element, the voltage boosted at the boost coil 101 is charged to a boost capacitor 103 via a diode 104, and, during the boost control, the internal combustion engine controller 100 makes the boost switch element 106 stop the current flowing through the boost coil 101 when the detected current reaches a switching stop current value and, after a predetermined set time Tdown has elapsed from the point at which current flow is stopped, makes the boost switch element 106 cause a current to flow through the boost coil 101.
摘要翻译： 提供了一种内燃机控制器，其实现了最大电流值和电流调节的降低，而不牺牲升压性能。 内燃机控制器100包括：升压线圈101，被配置为升高电池电源的电压VB; 升压开关元件106，被配置为在引起电流流动并停止电流流过升压线圈101之间切换; 以及被配置为检测流过升压开关元件106的电流的电流检测部分126，其中通过重复开关元件的切换来实现升压控制，在升压线圈101处升压的电压经由升压电容器103经由 二极管104，并且在升压控制期间，当检测到的电流达到开关停止电流值时，内燃机控制器100使升压开关元件106停止流过升压线圈101的电流，并且在预定设定时间Tdown具有 从电流停止的时刻开始，升压开关元件106使电流流过升压线圈101。
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