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公开(公告)号：EP0649100A3
公开(公告)日：1997-02-26
申请号：EP94115140.9
申请日：1994-09-26
申请人： HITACHI, LTD.
发明人： Satoh, Jun , Yamagishi, Kazushige , Nakashima, Keisuke , Katsura, Koyo , Miyamoto, Takashi , Watabe, Mitsuru , Ohmura, Kenichiroh
CPC分类号： G09G5/393 , G06F1/04 , G06F1/12 , G06F12/0207 , G06F13/1689 , G06F13/4243 , G06F15/7832 , G06T1/60 , G09G5/001 , G09G5/395 , G09G5/399 , G09G2320/0252 , G09G2350/00 , G09G2360/128 , G09G2370/10 , G11C8/04 , G11C8/06 , G11C8/10 , G11C8/12 , G11C8/18
摘要： A data processor comprises a bus control circuit (14) adapted to be interfaced with a synchronous DRAM (22) which can be accessed in synchronism with a clock signal (CLK), a plurality of data processing modules (12, 13) coupled to said bus control circuit (14) for producing data and addresses for accessing a memory (22), and a clock driver (16) for feeding intrinsic operation clocks to said data processing modules (12, 13) and for feeding the clock signal for accessing said memory (22) in synchronism with the operations of said data processing modules (12, 13) to be operated by the operation clock signals, to the outside.
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公开(公告)号：EP0287115B1
公开(公告)日：1994-11-09
申请号：EP88106049.5
申请日：1988-04-15
发明人： Morinaga, Shigeki , Nakagawa, Norio , Watabe, Mitsuru , Ohba, Mamoru , Kida, Hiroyuki , Kajiwara, Hisashi , Asai, Takeshi , Tatezaki, Junichi
IPC分类号： G06F9/38
CPC分类号： G06F9/3877 , G06F9/3885
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公开(公告)号：EP0476478A2
公开(公告)日：1992-03-25
申请号：EP91115226.2
申请日：1991-09-09
申请人： HITACHI, LTD.
发明人： Ohba, Mamoru , Watabe, Mitsuru , Minami, Rika , Obara, Sanshiro
IPC分类号： G01P3/489
CPC分类号： G01P3/489
摘要： A digital pulse processing device is capable of selecting precision. The digital pulse processing device includes a counter group for counting pulses output from a pulse output device, the counter group having a plurality of counters 110 and 111 that can be separated from and coupled with each other, a mode control circuit 129 for instructing separation and coupling of the counters 110 and 111, and a control circuit 116 for separating and coupling the counters 110 and 111 in accordance with the instruction of the mode control circuit 129. An overflow condition of the timer 119 is detected using an overflow flag. Detection of an overflow is conducted by setting the flag when an overflow condition has occurred twice or more. The flag is reset by rewriting the state of the flag by a software. An overflow condition which has occurred for the first time is detected in the conventional manner and is treated as carry or borrow. A register 128 is provided to hold the value of the timer 119 when a microcomputer reads in the counter 111. In this way, even when ΔA(i) = 0, speed detection operation can be executed using the value of the counter 111 obtained synchronously with the counting of the counter 110.
摘要翻译： 数字脉冲处理装置能够选择精度。 数字脉冲处理装置包括用于对从脉冲输出装置输出的脉冲进行计数的计数器组，该计数器组具有可以彼此分离和耦合的多个计数器110和111;用于指示分离的模式控制电路129， 计数器110和111的耦合，以及用于根据模式控制电路129的指令分离和耦合计数器110和111的控制电路116.使用溢出标志检测定时器119的溢出状况。 当溢出条件发生两次以上时，通过设置标志来进行溢出检测。 通过软件重写标志的状态来重置该标志。 以常规方式检测出第一次发生的溢出状况，并将其视为进位或借位。 当计数器读入计数器111时，提供寄存器128以保持定时器119的值。这样，即使当DELTA A（i）= 0时，也可以使用获得的计数器111的值来执行速度检测操作 与计数器110的计数同步。
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公开(公告)号：EP0331189A3
公开(公告)日：1991-09-04
申请号：EP89103773.1
申请日：1989-03-03
申请人： HITACHI, LTD.
IPC分类号： G01D5/245
CPC分类号： G01D5/24409
摘要： Disclosed is a position detecting method and apparatus which are suitable for detecting the position of a moving body on the basis of the output of a position detector (1) for generating two-phase periodic waves having a phase difference of a quarter period, the apparatus comprising wave processing means (2) comparing either one of the two-phase periodic waves with a predetermined reference value having hysteresis to thereby obtain a roughly estimated position for every half period of the one periodic wave; means (12, 14) for analog-to-digital converting the two-phase periodic waves and a zero-cross value for every sampling period to thereby obtain a finely estimated position; and detecting the position of the moving body on the basis of the roughly estimated position and the finely estimated position while correcting an error due to the hysteresis at the starting point of the roughly estimated position, by use of the relationship between the roughly estimated position and the finely estimated position. According to this method and apparatus, continuity between the roughly estimated position and the finely estimated position can be maintained, so that exact and high-resolution position detection can be performed.
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公开(公告)号：EP0162268B1
公开(公告)日：1991-07-24
申请号：EP85104395.0
申请日：1985-04-11
申请人： HITACHI, LTD.
IPC分类号： G01P3/489
CPC分类号： G01P3/489
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公开(公告)号：EP0162268A1
公开(公告)日：1985-11-27
申请号：EP85104395.0
申请日：1985-04-11
申请人： HITACHI, LTD.
IPC分类号： G01P3/489
CPC分类号： G01P3/489
摘要： A position/speed detection method and apparatus employing an encoder mounted on the rotary shaft of a motor in order to control the position and speed, wherein the coarse position Pc(K) and fine position (ϕ) are simultaneously detected by an encoder pulse and an encoder original signal (A,B), respectively and the detected results are combined to detect the position and speed of the motor with high precision.
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27.发明公开
公开(公告)号：EP1431865A2
公开(公告)日：2004-06-23
申请号：EP03029004.3
申请日：2003-12-16
申请人： Hitachi, Ltd.
IPC分类号： G06F1/32
CPC分类号： F02D41/062 , F02D41/1494 , F02D41/26 , F02N2300/302 , G06F1/3215 , Y10T307/25 , Y10T307/305
摘要： The present invention relates to an electrical control unit for an automobile of which standby electric current is smaller. In an electrical control unit for an automobile having a microcomputer (30), an input circuit, a driver circuit, and a power supply circuit (10), which is started by a wake-up signal from the circuit other than the ignition switch even when the ignition switch of the automobile is cut off, the microcomputer (30) is started by shifting the power supply circuit (10) from an inert state to an active state to generate the voltage for operating the microcomputer (30), and the predetermined processing is executed.
摘要翻译： 本发明涉及备用电流较小的用于汽车的电气控制单元。 在具有微型计算机（30），输入电路，驱动电路和电源电路（10）的汽车的电气控制单元中，其通过除了点火开关以外的电路的唤醒信号启动，甚至 当汽车的点火开关被切断时，通过将电源电路（10）从惰性状态转换到活动状态来产生微型计算机（30），以产生用于操作微型计算机（30）的电压，并且预定 执行处理。
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公开(公告)号：EP1074712A3
公开(公告)日：2003-03-05
申请号：EP00115040.8
申请日：2000-07-25
发明人： Tomita, Tsugio , Nakano, Syuuichi , Ono, Koichi , Watabe, Mitsuru
CPC分类号： F02D11/10 , F02D11/106 , F02D41/221 , F02D41/2464 , F02D41/266 , F02D2041/227 , F02D2200/0404
摘要： Even in such an arrangement in which the throttle valve (115) is operated independently of the engine control system (200), abnormal engine behavior is ensured to be detected such that a necessary fail-safe operation should be taken. The arrangement of the invention is comprised of the electronically controlled throttle system (100), engine control system (200) and engine speed monitoring unit (280), wherein the electronically controlled throttle system (100) is allowed to monitor engine behaviors. Thereby, in the case when the throttle valve (115) is operated independently of the engine control system (200), if its engine behavior becomes abnormal relative to its drive contents, the engine system senses the abnormality, and takes a fail-safe operation such as to stop operation of the throttle valve (115) and the like.
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公开(公告)号：EP1184245A3
公开(公告)日：2002-10-30
申请号：EP01116702.0
申请日：2001-07-17
申请人： Hitachi, Ltd.
发明人： Sakurai, Kohei , Kanekawa, Nobuyasu , Murabayashi, Fumio , Watabe, Mitsuru , Hayashibara, Toshio
IPC分类号： B60T8/88
CPC分类号： B60W50/00 , B60T8/885 , B60T2270/406 , B60W50/0205 , B60W2050/0006 , F02D41/22 , F02D41/266 , F02D41/3005 , F02D2400/18
摘要： To provide a low-cost vehicle control system (60) and a car using the system (60) by making radiation of an actuator driver (4) easy and thereby reducing the radiation component cost and moreover, downsizing an electronic control unit (1) and improving the versatility. The vehicle control system (60) is provided with the electronic control unit (1) and a plurality of actuators (3a). The vehicle control system (60) has actuator drivers (4) for driving the actuators (3a) at the actuator side. The actuator drivers (4) respectively have a self-diagnosis section, a self-protection section, and a communication control section and are made independent and dispersed correspondingly to the actuators (3a).
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公开(公告)号：EP1074712A2
公开(公告)日：2001-02-07
申请号：EP00115040.8
申请日：2000-07-25
发明人： Tomita, Tsugio , Nakano, Syuuichi , Ono, Koichi , Watabe, Mitsuru
IPC分类号： F02D11/10
CPC分类号： F02D11/10 , F02D11/106 , F02D41/221 , F02D41/2464 , F02D41/266 , F02D2041/227 , F02D2200/0404
摘要： Even in such an arrangement in which the throttle valve (115) is operated independently of the engine control system (200), abnormal engine behavior is ensured to be detected such that a necessary fail-safe operation should be taken. The arrangement of the invention is comprised of the electronically controlled throttle system (100), engine control system (200) and engine speed monitoring unit (280), wherein the electronically controlled throttle system (100) is allowed to monitor engine behaviors. Thereby, in the case when the throttle valve (115) is operated independently of the engine control system (200), if its engine behavior becomes abnormal relative to its drive contents, the engine system senses the abnormality, and takes a fail-safe operation such as to stop operation of the throttle valve (115) and the like.
摘要翻译： 即使在独立于发动机控制系统（200）的情况下操作节气门（115）的这种布置中，也能确保检测出异常的发动机行为，从而应该进行必要的故障安全操作。 本发明的装置包括电子控制节气门系统（100），发动机控制系统（200）和发动机转速监测单元（280），其中电子控制节气门系统（100）被允许监视发动机行为。 因此，在节气门（115）独立于发动机控制系统（200）动作的情况下，如果发动机的行驶相对于其驱动内容变得异常，则发动机系统检测到异常，进行故障保护动作 例如停止节气门（115）的操作等。
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