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1. 发明专利

JP2004312963A Motor controlling device 有权
公开(公告)号：JP2004312963A
公开(公告)日：2004-11-04
申请号：JP2003106907
申请日：2003-04-10
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： GOTO HIROO , INNAMI TOSHIYUKI , FUJINO SHINICHI , SAKURAI YOSHIMI
IPC分类号： H02P6/08 , H02P9/04
CPC分类号： Y02T10/642 , Y02T10/7077 , Y02T10/7241 , Y02T90/127
摘要： PROBLEM TO BE SOLVED: To provide a device for controlling an AC motor for a vehicle that has high usage efficiency of a voltage in power running control and high power generation efficiency in a power generating operation. SOLUTION: A motor controlling device has a three-phase rectifiers and switching elements connected between armature coils of the AC motor connected with an internal combustion engine to drive and a DC power source, and has an inverter function of inverting DC power from the DC power source into AC power to feed the AC power to the armature coils and a converter function of converting AC power generated by the AC motor into DC power to feed it to the DC power source. A rectangular wave drive control is carried out that impresses a rectangular wave voltage to the armature coils of the AC motor in the power running of the AC motor, while a synchronizing and rectifying control is carried out that synchronizes and rectifies AC power generated by the AC motor when the AC motor is used as a generator. COPYRIGHT: (C)2005,JPO&NCIPI

2. 发明专利

JP2003097693A CONTROL DEVICE OF HYBRID VEHICLE 审中-公开
公开(公告)号：JP2003097693A
公开(公告)日：2003-04-03
申请号：JP2001293651
申请日：2001-09-26
申请人： HITACHI LTD
发明人： OTSU HIDEKAZU , GOTO HIROO
IPC分类号： B60K17/04 , B60K6/20 , B60K6/485 , B60K6/547 , B60L50/16 , B60W10/06 , B60W10/08 , B60W10/10 , B60W20/00 , B60W30/00 , F02D29/00 , F02D29/02 , F02D41/04 , F02D41/12 , F02D41/22 , F16H61/12 , F16H61/18 , F16H63/50 , B60K6/02 , B60L11/14
摘要： PROBLEM TO BE SOLVED: To provide a control device of a hybrid vehicle which causes no damage to a motor-generator and a transmission and besides can continue to be driven through running by an internal-combustion engine, even if, for example, the transmission has broken down in the hybrid vehicle where the transmission is positioned between the internal-combustion engine and the motor- generator to interlock and connect with them. SOLUTION: The control device of the hybrid vehicle is provided with the internal-combustion engine, the motor-generator interlocking and connecting with the internal-combustion engine, a battery coupled electrically with the motor-generator, and the transmission for shifting an interlocking speed ratio between the internal-combustion engine and the motor-generator. The control device controls the internal-combustion engine so that a revolution speed of the motor-generator may not exceed the predetermined value when a change gear ratio of the transmission cannot shift from the ratio at start to the ratio at running.

3. 发明专利

JP2002221559A VEHICLE BATTERY DIAGNOSTIC DEVICE 失效
公开(公告)号：JP2002221559A
公开(公告)日：2002-08-09
申请号：JP2001018472
申请日：2001-01-26
申请人： HITACHI LTD
发明人： GOTO HIROO
IPC分类号： B60R16/04 , G01R1/20 , G01R31/00 , G01R31/36 , H01M10/48 , H02J7/00
摘要： PROBLEM TO BE SOLVED: To provide a vehicle battery deterioration diagnostic device capable of improving a battery deterioration diagnostic precision by improving a diagnostic control means, and facilitating mounting or dismounting of each detector on the battery by compacting an arrangement structure of the detectors used for battery deterioration diagnosis, and enabling more appropriate driving control of a vehicle by removing an evil effect based on deterioration of the battery, concerning the vehicle battery deterioration diagnostic device for diagnosing the battery from a relation characteristic between a discharge current and a terminal voltage in consideration of a battery electrolyte temperature. SOLUTION: This vehicle battery diagnostic device is equipped with the battery, an operation part for operating the battery characteristic from the terminal voltage and the discharge current of the battery, a determination part for determining the battery deterioration state based on the battery characteristic and the battery electrolyte temperature, and a cranking determination part for determining cranking of an internal combustion engine starting device. The determination part determines the battery deterioration state at the cranking time based on determination by the cranking determination part.

4. 发明专利

JP2004229395A Controller and controlling method of motor/generator 审中-公开
标题翻译：电机/发电机控制器及控制方法
公开(公告)号：JP2004229395A
公开(公告)日：2004-08-12
申请号：JP2003013664
申请日：2003-01-22
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SAKURAI YOSHIMI , MASAKI RYOZO , GOTO HIROO
IPC分类号： B60L11/14 , H02P6/24 , H02P9/04 , H02P27/06 , H02P7/63
CPC分类号： Y02T10/642 , Y02T10/7077 , Y02T10/7241
摘要： PROBLEM TO BE SOLVED: To provide a motor/generator controller in a motor/generator system exhibiting a high power generation efficiency by reducing loss of a power converter during power generation. SOLUTION: An inverter 3 comprising a main switch and a diode connected in reverse parallel therewith is provided. At the time of motor driving, power control is performed to supply a motor/generator 1 with power by turning the main switch on/off depending on a command voltage. At the time of power generating operation, rectification operation is performed by turning the main switch on/off according to the operating state of the diode in the inverter 3. COPYRIGHT: (C)2004,JPO&NCIPI
摘要翻译：要解决的问题：通过在发电期间减少功率转换器的损耗来在电动机/发电机系统中提供电动机/发电机系统，其表现出高发电效率。解决方案：提供一种逆变器3，其包括与其反向并联连接的主开关和二极管。在电动机驱动时，通过根据指令电压使主开闭器接通/断开，进行功率控制，向电动机/发电机1供电。在发电运转时，通过根据逆变器3中的二极管的工作状态来接通/断开主开关来进行整流动作。（C）2004年，JPO＆NCIPI

5. 发明专利

JP2003139028A STARTING CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE 审中-公开
公开(公告)号：JP2003139028A
公开(公告)日：2003-05-14
申请号：JP2001334982
申请日：2001-10-31
申请人： HITACHI LTD
发明人： GOTO HIROO
IPC分类号： F02N11/08
摘要： PROBLEM TO BE SOLVED: To provide a starting control apparatus for an internal combustion engine, preventing the slip and breakage of power transmitting means at starting the internal combustion engine. SOLUTION: The starting control apparatus comprises the internal combustion engine 1, a motor for starting the internal combustion engine 1, the power transmitting means 3 for transmitting the power of the motor 2 to the internal combustion engine 1, and control means 4 for controlling the internal combustion engine 1 and the motor 2 at starting the internal combustion engine 1. The control means 4 controls a torque command value for the motor to give positive- side torque when the engine speed of the internal combustion engine 1 is lower than a target engine speed and to give negative-side torque when it is higher than the target engine speed. It also controls a time constant of the negative-side torque command value to be larger than a time constant of the positive-side torque command value.

6. 发明专利

JP2004194382A Semiconductor device and power conversion device 有权
标题翻译：半导体器件和电源转换器件
公开(公告)号：JP2004194382A
公开(公告)日：2004-07-08
申请号：JP2002356606
申请日：2002-12-09
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： FUJINO SHINICHI , INNAMI TOSHIYUKI , GOTO HIROO , SHIGETA SATORU , SHIRAKAWA SHINJI
IPC分类号： H02M1/00 , H02M7/48
CPC分类号： H01L2224/49111 , H01L2924/19107
摘要： PROBLEM TO BE SOLVED: To provide a semiconductor device and a power conversion device which realize size reduction, high efficiency, and low inductance. SOLUTION: This device comprises positive electrode and negative electrode DC terminals (3, 2) formed out of conductor plates, a semiconductor switch (13a), output terminals (4, 5, 6), and capacitors (29a, 29b) for relieving a voltage fluctuation when the semiconductor switch (13a) is driven. An insulator (11) is put between the positive electrode DC terminal (3) and the negative electrode DC terminal (2) for lamination, each of which is directly connected to poles corresponding to the capacitors (29a, 29b). COPYRIGHT: (C)2004,JPO&NCIPI
摘要翻译：要解决的问题：提供实现尺寸减小，高效率和低电感的半导体器件和功率转换器件。解决方案：该装置包括由导体板形成的正极和负极直流端子（3,2），半导体开关（13a），输出端子（4,56）和电容器（29a，29b）用于在半导体开关（13a）被驱动时缓解电压波动。在正电极直流端子（3）和用于层压的负极直流端子（2）之间放置绝缘体（11），每个直流端子直接连接到与电容器（29a，29b）对应的极点。版权所有（C）2004，JPO＆NCIPI

7. 发明专利

JP2003161364A CONTROL APPARATUS FOR HYBRID VEHICLE 审中-公开
公开(公告)号：JP2003161364A
公开(公告)日：2003-06-06
申请号：JP2001361219
申请日：2001-11-27
申请人： HITACHI LTD
发明人： OTSU HIDEKAZU , GOTO HIROO
IPC分类号： B60W10/04 , B60K6/20 , B60K6/36 , B60K6/48 , B60K6/54 , B60K6/547 , B60L50/16 , B60W10/00 , B60W10/06 , B60W10/08 , B60W10/10 , B60W10/18 , B60W10/184 , B60W10/26 , B60W20/00 , F02D29/02 , F16H61/02 , B60K6/02 , B60K41/00 , B60K41/28 , B60L11/14
摘要： PROBLEM TO BE SOLVED: To perform the quick charge of a battery, by the quantity of energy consumed in starting, in an idling state after the start of an engine, and to improve the quick activation performance of a catalyzer by the temperature rise of exhaust gas caused by applying the load of power generation to the engine. SOLUTION: After starting the engine, the speed changing state of a motor- generator speed changer 3 is kept to be the same position as that in a starting time (a reduction position). After the engine has been on full throttle, generation control is started after an idling speed has become stable, so that a sudden load variation for the engine can be avoided by giving a time gradient to a generating command. COPYRIGHT: (C)2003,JPO

8. 发明专利

JP2001336434A IDLE STOP VEHICLE 失效
公开(公告)号：JP2001336434A
公开(公告)日：2001-12-07
申请号：JP2000153670
申请日：2000-05-24
申请人： HITACHI LTD
发明人： GOTO HIROO , MAEDA YUJI , IINO HISAO
IPC分类号： F02D17/00 , F02D29/02
摘要： PROBLEM TO BE SOLVED: To provide an idle step vehicle not giving a driver an unpleasant feeling. SOLUTION: A control device 40 controls an internal combustion engine stopping device 20 based on the signal from a vehicle state detecting device 50 so as to stop an internal combustion engine 10. It is thus possible for a driver, by setting the idling time on a manual timer 60, to variably set the time from the determing the idle stop mode based on the information from a vehicle state detecting device 50 by the control device 20 to the stopping of the internal combustion engine.

9. 发明专利

JP2004201427A Current detection device and pwm inverter using same 有权
公开(公告)号：JP2004201427A
公开(公告)日：2004-07-15
申请号：JP2002367856
申请日：2002-12-19
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： FUJINO SHINICHI , SAKANO JUNICHI , INNAMI TOSHIYUKI , GOTO HIROO
IPC分类号： G01R19/00 , H02M7/537 , H02M7/5387
CPC分类号： H02M7/537 , H02M7/53871 , H02M2001/0009
摘要： PROBLEM TO BE SOLVED: To provide a current detection device that eliminates the need for a different device and a different circuit for detecting a current and can detect currents in both positive and negative directions, and to provide a PWM inverter reduced in size and cost using the current detection device. SOLUTION: The current detection device comprises a power MOSFET Q1 which is connected between an electric load and a power supply and controls a current flowing to the electric load, and a Miller MOSFET Q2 which is connected to the power MOSFET Q1 in parallel therewith and to which part of the current flowing to the power MOSFET flows, and a current detection resistor RC which is connected between a source electrode of the power MOSFET and a source electrode of the Miller MOSFET. An inverting amplifier circuit CP of the current detection device 3 converts voltages in positive and negative directions generated at both ends of the current detection resistor RC to positive voltages, by inverting and amplifying a voltage signal converted to a voltage by the current detection resistor RC and outputting the voltage signal. COPYRIGHT: (C)2004,JPO&NCIPI

10. 发明专利

JP2003270275A Current detection circuit 审中-公开
标题翻译：电流检测电路
公开(公告)号：JP2003270275A
公开(公告)日：2003-09-25
申请号：JP2002075383
申请日：2002-03-19
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： FUJINO SHINICHI , MASUNO KEIICHI , INNAMI TOSHIYUKI , GOTO HIROO , SHIGETA SATORU , SHIRAKAWA SHINJI , SAKANO JUNICHI
IPC分类号： G01R19/165
摘要： PROBLEM TO BE SOLVED: To provide a current detection circuit for accurately preventing a breakdown of a sensing MOSFET.
SOLUTION: In a power MOSFET connected to a power supply and a load in series and turning a connection of the load on or off, the sensing MOSFET having a drain electrode and a gate electrode commonly connected to the power MOSFET and the current detection circuit connected between a source electrode of the sensing MOSFET and the load, the current detection circuit changes an impedance of a current circuit in accordance with a current change of the power MOSFET and limits a current of the sensing MOSFET.
COPYRIGHT: (C)2003,JPO

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