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1. 发明专利

JP2009156082A Control device for internal combustion engine 有权
标题翻译：内燃机控制装置
公开(公告)号：JP2009156082A
公开(公告)日：2009-07-16
申请号：JP2007332554
申请日：2007-12-25
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ETO DAISUKE , WATABE MITSUHIKO , OURA RYOICHI , MAYUZUMI TAKUYA , TOYOHARA MASAHIRO
IPC分类号： F02D41/22 , F02D41/20
CPC分类号： F02D41/221 , F02D31/009 , F02D41/20 , F02D41/3836 , F02D2041/2003 , F02D2041/2048 , F02D2041/2065 , F02D2041/228 , F02D2200/503 , F02D2250/31 , Y02T10/40
摘要： PROBLEM TO BE SOLVED: To provide a control device for an internal combustion engine capable of efficiently restraining heat generation of an injector drive circuit according to an operating condition of a vehicle, and restraining influences on the operation of the vehicle. SOLUTION: A control device 10 for an internal combustion engine 80 includes an injector drive circuit 90 that drives an injector 30 that injects fuel and a temperature detection device that at least detects timing when a temperature condition that the temperature of the injector drive circuit 90 exceeds predetermined temperature is satisfied. The control device 10 includes a heat-generation-suppression control means 104 that performs control for suppressing the heat generation of the injector drive circuit 90. The heat-generation-suppression control means 104 selects, on the basis of a driving state of a vehicle, at least one parameter among an electric current applied to the injector, fuel pressure supplied to the injector 30, the number of revolutions of the internal combustion engine, and voltage from a battery to be boosted and performs control for limiting a value of the selected parameter on the basis of the timing. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够根据车辆的运行状况有效地抑制喷射器驱动电路的发热并且抑制对车辆的运转的影响的内燃机的控制装置。解决方案：用于内燃机80的控制装置10包括：喷射器驱动电路90，其驱动喷射燃料的喷射器30;以及温度检测装置，其至少在检测到喷射器驱动的温度电路90超过预定温度。控制装置10包括执行用于抑制喷射器驱动电路90的发热的控制的发热抑制控制装置104.发热抑制控制装置104基于车辆的行驶状态施加到喷射器的电流中的至少一个参数，提供给喷射器30的燃料压力，内燃机的转数和来自待升压的电池的电压进行控制，以限制所选择的参数在时间的基础上。版权所有（C）2009，JPO＆INPIT

2. 发明专利

JP2009148030A Power controller and machine using it 有权
标题翻译：功率控制器和机器使用它
公开(公告)号：JP2009148030A
公开(公告)日：2009-07-02
申请号：JP2007320828
申请日：2007-12-12
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SATO CHIHIRO , WATABE MITSUHIKO , MORIYA YASUSHI , KURIMOTO YUJI
IPC分类号： H02J1/00 , H02M3/155
CPC分类号： H02M3/1582
摘要： PROBLEM TO BE SOLVED: To provide a stable power controller which improves the property of a switching regulator by simple constitution.
SOLUTION: A power unit, which has a battery and only a step-up function from a battery voltage or both of the step-up function and a step-down function, is equipped with a means, which quickly stabilizes a primary voltage with only a step-down function, by preventing the generation of a ripple voltage by stopping the step-up function to a specified period, as to the switching action at connection of a battery, without changing the conventional requirements of a switching element and a smoothing circuit.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种稳定的功率控制器，其通过简单的结构提高开关调节器的性能。
解决方案：具有电池且仅具有电池电压或升压功能和降压功能的升压功能的电源单元配备有一种能够快速稳定主电池具有降压功能的电压，通过在不改变开关元件的常规要求的情况下，通过将升压功能停止到指定时间段，关于电池连接时的开关动作来防止产生纹波电压，平滑电路。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JP2009108686A Control device for internal combustion engine 有权
标题翻译：内燃机控制装置
公开(公告)号：JP2009108686A
公开(公告)日：2009-05-21
申请号：JP2007278772
申请日：2007-10-26
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TAKAHASHI NOBUYUKI , SASAKI MASAHIRO , MAYUZUMI TAKUYA , WATABE MITSUHIKO , OURA RYOICHI
IPC分类号： F02D41/20 , F02M51/00 , F02M51/06 , H01F7/18
CPC分类号： F02D41/20 , F02D41/221 , F02D2041/2013 , F02D2041/2044 , F02D2041/2058 , F02D2041/2093 , F02D2041/227 , Y02T10/40
摘要： PROBLEM TO BE SOLVED: To achieve a fail-safe function, highly accurate control and suppression of circuit heat generation by exciting an injector even when a boost circuit of a control device for an internal combustion engine is broken. SOLUTION: The control device for the internal combustion engine comprises the boost circuit, a switching element, a current detecting resistor and a controller. The boost circuit is used to boost a power source voltage and the controller is used to control the switching element so as to enable the boosted voltage to flow to a solenoid coil for the injector. When the boost circuit is broken, the injector solenoid coil is excited by using the power source voltage without using the boosted voltage and without creating a peak current, so as to generate a precharge current to promote valve opening of the injector, a first holding current required for opening the injector and a second holding current lower than the first holding current and required for retaining the valve opened state of the injector. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：即使当内燃机的控制装置的升压电路被破坏时，为了实现故障保护功能，通过激发喷射器来高精度地控制和抑制电路发热。解决方案：内燃机的控制装置包括升压电路，开关元件，电流检测电阻器和控制器。升压电路用于提高电源电压，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用于注入器的螺线管线圈。当升压电路断开时，通过使用电源电压而不使用升压电压而不产生峰值电流来激励喷射器螺线管线圈，从而产生预充电电流以促进喷射器的开阀，第一保持电流需要打开喷射器和第二保持电流低于第一保持电流并且需要用于保持喷射器的阀打开状态。版权所有（C）2009，JPO＆INPIT

4. 发明专利

JP2005327949A Solenoid driving integrated circuit 审中-公开
标题翻译：电磁铁驱动集成电路
公开(公告)号：JP2005327949A
公开(公告)日：2005-11-24
申请号：JP2004145770
申请日：2004-05-17
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： WATABE MITSUHIKO , KOYAMA KATSUYA , SASAKI SHOJI
IPC分类号： F16K31/06 , H01F7/18
摘要： PROBLEM TO BE SOLVED: To solve the problem that, when a plurality of solenoid valves are simultaneously driven in a solenoid driving circuit for driving solenoid coils of the solenoid valves or the like, formation of the circuit in the form of an integrated LSI causes an LSI cost to be increased by an increase in the number of control terminals, or causes the operational load of a controlling microcomputer to be increased by the simultaneous driving of the plural solenoid valves.
SOLUTION: A solenoid driving integrated circuit comprises a switching element for turning ON and OFF a current, a resistor and a current detection circuit for detecting the current, and a comparison means for comparing a current amount. The integrated circuit also comprises a means for holding data inputted from a microcomputer, means for calculating the data held in the holding means, and a means for converting an output of the calculating means to an analog signal.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题为了解决在电磁阀等的螺线管线圈驱动的螺线管驱动电路中同时驱动多个电磁阀时，形成集成电路形式的电路 LSI通过控制端子的数量的增加而导致LSI成本增加，或者通过同时驱动多个电磁阀来增加控制微计算机的操作负荷。电磁驱动集成电路包括用于导通和关断电流的开关元件，用于检测电流的电阻器和电流检测电路，以及用于比较电流量的比较装置。集成电路还包括用于保存从微计算机输入的数据的装置，用于计算保持在保持装置中的数据的装置，以及用于将计算装置的输出转换为模拟信号的装置。版权所有（C）2006，JPO＆NCIPI

5. 发明专利

JP2009177319A Internal combustion engine controller 有权
标题翻译：内燃机控制器
公开(公告)号：JP2009177319A
公开(公告)日：2009-08-06
申请号：JP2008011584
申请日：2008-01-22
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： OURA RYOICHI , WATABE MITSUHIKO , MAYUZUMI TAKUYA , OKAMOTO CHIKAYUKI
IPC分类号： H03K17/00 , F02D41/20 , F02D41/22 , F02D45/00
CPC分类号： F02D41/20 , H01F7/1844
摘要： PROBLEM TO BE SOLVED: To provide an internal combustion engine controller for driving an electromagnetic load, which improves the fault diagnosing accuracy of the electromagnetic load even when the driving cycle of the electromagnetic load is short, thereby performs high-speed control not affected by noise, and performs highly reliable fault diagnosing even for a regeneration circuit of counter electromotive energy. SOLUTION: In order to secure high fault diagnosing accuracy even when the driving cycle of the electromagnetic load of a fuel injection device or the like in an internal combustion engine becomes short, a current source or a voltage source for adjusting the potential of a diagnostic part is provided. In addition, in order to secure diagnosing accuracy not affected by sudden disturbance like the noise, a diagnosing timing is set to be optimum and the number of times of judgement for averaging is increased. Further, for the fault diagnosis of the circuit providing regeneration to a boosting circuit, the input/output voltage of the switch element for driving the electromagnetic load or a regenerative current is detected. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供用于驱动电磁负载的内燃机控制器，即使当电磁负载的驱动循环较短时也能提高电磁负载的故障诊断精度，从而不执行高速控制受噪声影响，即使对于反电动势的再生电路也能进行高度可靠的故障诊断。解决方案：即使当内燃机中的燃料喷射装置等的电磁负载的驱动循环变短时，为了确保高故障诊断精度，也可以使用电流源或电压源提供诊断部分。此外，为了确保不受噪声等突发干扰影响的诊断精度，将诊断定时设定为最佳，并且平均化判断次数增加。此外，为了对提升电路进行再生的电路的故障诊断，检测用于驱动电磁负载的开关元件的输入/输出电压或再生电流。版权所有（C）2009，JPO＆INPIT

6. 发明专利

JP2009003663A Power control device 有权
标题翻译：电源控制装置
公开(公告)号：JP2009003663A
公开(公告)日：2009-01-08
申请号：JP2007163288
申请日：2007-06-21
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SATO CHIHIRO , WATABE MITSUHIKO , OURA RYOICHI , MORIYA YASUSHI
IPC分类号： G05F1/10 , B60R16/02 , H02H3/08 , H02H5/04
摘要： PROBLEM TO BE SOLVED: To provide an inexpensive and reliable power control device. SOLUTION: This power control device 500 has: a regulator 10 generating a prescribed output voltage 10a from a battery power source 1 by receiving an ignition signal 2; an output voltage monitoring circuit 20 detecting abnormal output voltage 10a of the regulator 10; and an abnormality detection history holding means 100 holding output voltage abnormality information 20a during while the output voltage abnormality information 20a output from the output voltage monitoring circuit 20 is input and when the ignition signal 2 is not input to the regulator 10. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供廉价可靠的电力控制装置。解决方案：该电力控制装置500具有：调节器10，其通过接收点火信号2从电池电源1产生规定的输出电压10a; 检测调节器10的异常输出电压10a的输出电压监视电路20; 以及在输入从输出电压监视电路20输出的输出电压异常信息20a输入时保持输出电压异常信息20a的异常检测历史保持装置100，以及点火信号2未输入到调节器10的情况。（C）2009，JPO＆INPIT

7. 发明专利

JP2007206018A Rotation angle detector, abnormality detector therefor, and motor-driven power steering unit 有权
标题翻译：旋转角度检测器，异常检测器和电机驱动力转向单元
公开(公告)号：JP2007206018A
公开(公告)日：2007-08-16
申请号：JP2006028153
申请日：2006-02-06
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KOYAMA KATSUYA , WATABE MITSUHIKO
IPC分类号： G01D5/245 , B62D5/04 , G01B7/30 , H02P6/12 , H02P6/16
摘要： PROBLEM TO BE SOLVED: To accurately detect an angle, based on a resolver output signal, and to detect abnormality in a rotation angle detector in a motor-driven power steering unit or the like to allow back-up therefor.
SOLUTION: This rotation angle detector outputs an excitation signal from an excitation signal generating part 2 to a resolver 1 provided in a rotary shaft, converts the signal into a digital signal by a converter 3, and is provided with an abnormality detector for detecting the abnormality in a main system for detecting a steering rotation angle of inputting a rotation angle signal into a CPU 4. The detector is also provided with a means (offset adding and subtracting part 10, SPI 11) which reads a peak value of an resolver output, by a means (zero-cross detecting part 6, counter 8) for measuring sequentially a period of the excitation signal, and by a means (one shot generating part 9) for calculating an offset amount based on a period measured result and for generating a timing signal for AD-conversion, and regulates the offset amount of the conversion timing signal.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：基于分解器输出信号精确地检测角度，并且检测电动机动力转向单元等中的旋转角度检测器中的异常以允许备用。解决方案：该旋转角度检测器将来自激励信号生成部2的激励信号输出到设置在旋转轴中的旋转变压器1，由转换器3将该信号转换为数字信号，并设置有异常检测器，检测用于检测将旋转角度信号输入到CPU 4的转向旋转角度的主系统中的异常。检测器还设置有读取峰值的装置（偏移加减法部分10，SPI11）通过用于顺序地测量激励信号的周期的装置（零交叉检测部分6，计数器8）和通过基于周期测量结果计算偏移量的装置（一次发生部分9），进行解算器输出，以及用于产生用于AD转换的定时信号，并且调节转换定时信号的偏移量。版权所有（C）2007，JPO＆INPIT

8. 发明专利

JP2004197579A Rotational signal input device 审中-公开
公开(公告)号：JP2004197579A
公开(公告)日：2004-07-15
申请号：JP2002363949
申请日：2002-12-16
申请人： Hitachi Car Eng Co Ltd , Hitachi Ltd , 株式会社日立カーエンジニアリング , 株式会社日立製作所
发明人： FUKASAKU MAKI , WATABE MITSUHIKO , MIYASHITA KIMIO , OKAMOTO CHIKAYUKI , SASAKI SHOJI
IPC分类号： F02D45/00
摘要： PROBLEM TO BE SOLVED: To provide a signal input device capable of solving problems of complicating waveform shaping and noise removal circuits and low accuracy in a wide rotational range, avoiding enlargement of a hardware scale, and capable of realizing high crank angle reference position detection accuracy by eliminating effects of a filter delay.
SOLUTION: This signal input device comprises a sensor with a magnetic detection element which detects at least an angular position or rotational speed; a comparator for determining the level of a sensor; a reference level generator for generating a reference level signal of the comparator; and a means for individually setting the filter delay time of a rise/down in an output signal of the comparator by providing a filter circuit for eliminating a noise component of the output signal of the comparator.
COPYRIGHT: (C)2004,JPO&NCIPI

9. 发明专利

JP2007006566A Motor controller 审中-公开
标题翻译：电机控制器
公开(公告)号：JP2007006566A
公开(公告)日：2007-01-11
申请号：JP2005181430
申请日：2005-06-22
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： WATABE MITSUHIKO , KOYAMA KATSUYA , SASAKI SHOJI
IPC分类号： H02P27/06 , B62D5/04
CPC分类号： H02M7/53873 , H02M2001/0009
摘要： PROBLEM TO BE SOLVED: To provide a motor controller which can perform accurate current detection, using an amplifier in usual accuracy where current detection accuracy does not deteriorate even if its temperature changes.
SOLUTION: This motor controller is equipped with a switch circuit 10 for supplying a motor 17 with a drive current, a resistor 7 for detecting the drive current, an amplifying circuit 2 for amplifying the potential difference between both ends of the resistor 7, an input part switching means 15 which is provided in the input part of the amplifying circuit 2 and switches it to normally rotate or invert the potential difference, an output part switching means 20 which is provided at the output part of the amplifier 2 and switches it to normally rotate or invert the output voltage of the amplifier, and a CPU50 which levels the voltage at the time of having normally rotated or inverted the output voltage of the amplifier 2.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供可以执行精确电流检测的电动机控制器，使用通常精度的放大器，其中电流检测精度即使其温度变化也不会劣化。解决方案：该电动机控制器配备有用于向电动机17提供驱动电流的开关电路10，用于检测驱动电流的电阻器7，用于放大电阻器7的两端之间的电位差的放大电路2 设置在放大电路2的输入部分并将其切换以正常旋转或反转电位差的输入部分切换装置15，设置在放大器2的输出部分的开关部分的开关装置20 它正常地旋转或反转放大器的输出电压，以及CPU50，其在正常旋转或反相放大器2的输出电压时对电压进行调节。版权所有：（C）2007，JPO＆INPIT

10. 发明专利

JP2009243275A Internal combustion engine controller 有权
标题翻译：内燃机控制器
公开(公告)号：JP2009243275A
公开(公告)日：2009-10-22
申请号：JP2008087334
申请日：2008-03-28
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MAYUZUMI TAKUYA , WATABE MITSUHIKO , OURA RYOICHI , SASAKI MASAHIRO
IPC分类号： F02D41/20 , F02M51/00 , F02M51/06
CPC分类号： F02D41/20 , F02D2041/2006 , F02D2041/2017
摘要： PROBLEM TO BE SOLVED: To provide an internal combustion engine controller for satisfying a low-voltage boost resetting request time while minimizing the lengthening of a boost resetting time for a booster circuit when battery power voltage drops.
SOLUTION: A booster control circuit independently sets a predetermined boost capacitor charge ensuring time in a boost switching cycle so that a boost switching current is shut off to charge electric energy accumulated in a coil to a capacitor.
COPYRIGHT: (C)2010,JPO&INPIT

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