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1. 发明专利

JP2007267514A Electric four-wheel drive vehicle and electric motor for use therein 审中-公开
标题翻译：电动四轮驱动车辆和电动马达
公开(公告)号：JP2007267514A
公开(公告)日：2007-10-11
申请号：JP2006089838
申请日：2006-03-29
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TAWARA KAZUO , YOSHIDA KENICHI , KOBAYASHI KOJI , NISHIDATE KEISUKE , UMEZAKI YOSUKE
IPC分类号： H02K19/22 , B60K6/26 , B60K6/44 , B60K6/52 , B60K17/356 , B60L11/14 , B60W10/08 , B60W20/00 , H02K21/04
CPC分类号： Y02T10/623 , Y02T10/6243 , Y02T10/6265 , Y02T10/641 , Y02T10/7077
摘要： PROBLEM TO BE SOLVED: To reduce strange sound and vibration in an electric four-wheel drive vehicle by stopping the rotor of an electric motor as quickly as possible when a vehicle speed exceeds predetermined one and rotation is not transmitted between the wheel and the electric motor. SOLUTION: Since permanent magnets 130a and 130b are provided between the claw poles 111a, 111b, 112a, 112b of a claw pole rotor, the rotor trying to continue rotation with inertia when a vehicle speed exceeds predetermined one and rotation is not transmitted between the electric motor and the wheel, can be braked with magnetic force of the permanent magnets 130a and 130b. Consequently, strange sound or vibration is not generated even if rotation is not transmitted between the electric motor and the wheel. A big torque can be attained because a big amount of gap magnetic flux is obtained through saturation of the magnetic circuit in the claw poles 111a, 111b, 112a, 112b when the field current of the claw pole rotor is increased. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了通过在车速超过预定值时尽可能快地停止电动机的转子并且在车轮和车轮之间不传递旋转，来减少电动四轮驱动车辆中的奇怪的声音和振动电动机。解决方案：由于在爪极转子的爪极111a，111b，112a，112b的爪极111a，111b，112a，112b之间设置有永久磁铁130a，130b，所以当车速超过规定值时转子试图继续旋转而不转动，在电动机和车轮之间，可以用永久磁铁130a和130b的磁力制动。因此，即使在电动机和车轮之间不传递旋转，也不会产生奇怪的声音或振动。由于当爪极转子的励磁电流增加时通过爪电极111a，111b，112a，112b中的磁路的饱和获得大量的间隙磁通量，所以可以获得大的转矩。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2004015989A Brush motor for vehicle drive unit and its control method 有权
公开(公告)号：JP2004015989A
公开(公告)日：2004-01-15
申请号：JP2002170770
申请日：2002-06-12
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YOSHIDA KENICHI , NISHIDATE KEISUKE , SHIMIZU HISAYA
IPC分类号： B60L11/14 , H02K23/00
CPC分类号： Y02T10/641 , Y02T10/7077
摘要： PROBLEM TO BE SOLVED: To solve the problem that it is difficult to protect the temperature of a motor in all conditions only by measuring the temperature of a brush, since a condition may arise that a high output is required in a short time in a vehicle drive unit, while the brush often becomes highest in temperature when the operation of the brush is continued or repeated. SOLUTION: A brush motor for the vehicle drive unit is configured such that either of a front wheel or a rear wheel of a vehicle is driven by an engine, and the other is driven by a motor. The brush motor comprises the brush that feeds power to a rotor of the brush motor for the vehicle drive unit, and a brush holder that connects power from the outside to the brush via a power line. A temperature sensor for measuring the temperature of the motor is installed to the brush holder. The brush motor also comprises a first overtemperature protecting logic that restricts a motor input by combining an energizing current value and an energizing time, and a second overtemperature protecting logic that restricts the motor input by detecting an output signal from the temperature sensor. COPYRIGHT: (C)2004,JPO

3. 发明专利

JP2002171608A VEHICLE DRIVING ASSISTANCE DEVICE 失效
公开(公告)号：JP2002171608A
公开(公告)日：2002-06-14
申请号：JP2000369109
申请日：2000-12-04
申请人： HITACHI LTD
发明人： NISHIDATE KEISUKE , FUKASAKU YOSHINORI , MASUNO KEIICHI , YAMAMOTO TATSUYUKI , MAEDA YUJI , TAJIMA SUSUMU , INNAMI TOSHIYUKI , SHIMIZU HISAYA
IPC分类号： B60L50/16 , B60K6/20 , B60K6/26 , B60K6/36 , B60K6/40 , B60K6/44 , B60K6/442 , B60K6/52 , B60K6/54 , B60K17/356 , B60L15/20 , H02K9/28 , B60L11/14 , B60K6/02
摘要： PROBLEM TO BE SOLVED: To provide a long libe vehicle driving assistance device capable of curbing a rise in temperature at a brush part. SOLUTION: A driving force of an electric motor 100 is transmitted to wheels 36A and 36B through a differential gear 33. The electric motor 100 has a front bracket 137 supporting a shaft 134. The electric motor is connected to the differential gear 33 through the front bracket 137. Brushes 131 and 132 feeding electricity to a commutator 130 of the electric motor 100 are fitted to the front bracket 137 through a brush holder.

4. 发明专利

JP2000045920A ENGINE STARTING SYSTEM, STARTING METHOD AND STARTER MOTOR 失效
公开(公告)号：JP2000045920A
公开(公告)日：2000-02-15
申请号：JP21528398
申请日：1998-07-30
申请人： HITACHI LTD
发明人： MARUHASHI YASUHIKO , NISHIDATE KEISUKE
IPC分类号： F02N15/06 , F02N11/08
摘要： PROBLEM TO BE SOLVED: To provide a reliable engine starting system which can prevent occurrence of wear and chipping of a pinion or the like through a gentle engagement between the pinion and a ring gear and which can perform optimum starting control of the engine, so that excellent durability and reduction of noise can be achieved. SOLUTION: When an engine operating condition detector of a controller detects the stop of an engine, a pinion control portion controls a pinion to be gently engaged with a pinion with a ring gear 3 portion. After lapse of a predetermined time, a pinion- driven solenoid 13 is de-energized. A motor control portion of the controller energizes a motor 11 when a driver turns a vehicle key switch on. The motor 11 is de-energized when the engine operating condition detector detects that the number of revolutions of the engine exceeds the number of revolutions from which it is decided that the starting of the engine has been completed. Simultaneously, a holding means control portion energizes a plunger stopper 19. Then, when the plunger stopper 19 is de- energized, the starting of the engine is completed. Again, the engine operating condition detector of the controller detects whether the engine has been stopped or not. Thereafter, the above-described operation is repeated.

5. 发明专利

JPH11223171A MOTOR FOR STARTER 失效
公开(公告)号：JPH11223171A
公开(公告)日：1999-08-17
申请号：JP2429298
申请日：1998-02-05
申请人： HITACHI LTD
发明人： SASAMOTO HISAYA , TAWARA KAZUO , NISHIDATE KEISUKE
IPC分类号： F02N11/00 , F02N11/08 , H02P1/18
摘要： PROBLEM TO BE SOLVED: To inhibit the generation of spark in a motor for a starter of a vehicle in which the idling stop operation is performed by mounting the interpoles on the intermediate symmetry axis among a plurality of main field magnetic poles, winding an interpole excitation winding onto each interpole, and exciting the interpole excitation winding by the negative current. SOLUTION: Four main field magnetic poles 30 (30a-30d) are fixed to an inner peripheral side of a york 20, and an armature 40 is mounted on an inner peripheral side of the main field magnetic poles 30. Further the interpoles 50 (50a-50d) on which the interpole excitation windings 54 (54a-54d) are respectively wound, are mounted at the inner peripheral side of the york 20 at equal intervals in such manner that the interpoles 50 are respectively located on an intermediate part between the adjacent main field magnetic poles 30. The excitation current is carried to the excitation windings 54 of the interpoles 50, so that the reactance generated by the self-induced electromotive force of the armature winding can be canceled by the rectifier electromotive force generated from the interpoles 50, the rectification phenomena can be improved, and the generation of the spark under the brush can be reduced.

6. 发明专利

JPH11218068A ENGINE STARTING DEVICE 失效
公开(公告)号：JPH11218068A
公开(公告)日：1999-08-10
申请号：JP2180498
申请日：1998-02-03
申请人： HITACHI LTD
发明人： MARUHASHI YASUHIKO , NISHIDATE KEISUKE
IPC分类号： F02N15/06 , F02D45/00 , F02N11/00 , F02N11/08
摘要： PROBLEM TO BE SOLVED: To provide an engine starting device to prevent the occurrence of wear and the chip of a pinion through gentle engagement between a pinion and a ring gear and perform optimum starting control of an engine, being excellent in durability, reduce the generation of noise, and have high reliability. SOLUTION: When a controller 30 detects a stop of an engine 1, a pinion 17 is gently engaged with a ring gear 3, and after a lapse of a given time, energization to a pinion drive solenoid 13 is cut off. A motor 11 is energized when the key switch 5 of a motor is turned ON by a driver. When it is detected that the number of revolutions of an engine 1 exceeds the number of revolutions from which it is decided that stating is completed, energization to the motor 11 is cut off and a plunger stopper 19 is energized. Thereafter, energization to the plunger stopper 19 is cut off and the starting of the engine 1 is completed. Further, it is detected by the controller 30 whether the engine 1 is stopped and after the detection, operation similar to the operation described above is executed.

7. 发明专利

JP2006254654A Synchronous motor and electric driving device 有权
标题翻译：同步电机和电驱动装置
公开(公告)号：JP2006254654A
公开(公告)日：2006-09-21
申请号：JP2005070927
申请日：2005-03-14
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： UMEZAKI YOSUKE , KOBAYASHI KOJI , YOSHIDA KENICHI , NISHIDATE KEISUKE , TAWARA KAZUO
IPC分类号： H02K19/24 , B60L11/14 , H02P6/08 , H02P21/00 , H02P27/06
CPC分类号： H02K3/28 , B60K6/26 , B60K6/44 , B60K6/46 , B60K6/52 , B60L11/123 , B60L11/14 , B60L11/1803 , B60L15/025 , B60L2210/20 , B60L2220/12 , B60L2220/14 , B60L2260/28 , H02K16/00 , H02K19/16 , H02P2207/05 , Y02T10/6217 , Y02T10/623 , Y02T10/6265 , Y02T10/641 , Y02T10/643 , Y02T10/7005 , Y02T10/7077 , Y02T10/725
摘要： PROBLEM TO BE SOLVED: To provide a synchronous motor with low vibration and an electric driving device. SOLUTION: The synchronous motor of a field winding type is provided with a stator 102 having a stator winding where supply power is controlled so that driving torque becomes small as the number of rotations of a rotor becomes high, a stator 102 formed of the rotor having field winding controlled in such a way that field current becomes small as the number of rotations of the rotor becomes high, and the rotor 110 supported to an inner peripheral side of the stator 102 so that it can rotate. The rotor 110 is formed of a pawl magnetic pole rotor of a tandem structure where a plurality of pairs of pawl magnetic poles of N pole and S pole, which are excited by field winding, are connected in an axial direction. A plurality of pairs of pawl magnetic poles of the pawl magnetic pole rotor with the tandem structure are shifted in a circumferential direction. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供具有低振动的同步电动机和电驱动装置。解决方案：励磁绕组类型的同步电动机具有定子102，该定子102具有定子绕组，其中供电功率被控制，使得当转子的转数变高时，驱动转矩变小;定子102由具有励磁绕组的转子以这样的方式进行控制，使得当转子的转数变高时励磁电流变小，并且转子110支撑在定子102的内周侧，使得其可旋转。转子110由串联结构的棘爪磁极转子形成，其中通过励磁绕组激励的多对N极和S极的棘爪磁极在轴向方向上连接。具有串列结构的棘爪磁极转子的多对棘爪磁极在圆周方向上偏移。版权所有（C）2006，JPO＆NCIPI

8. 发明专利

JP2006176120A Electric drive device for vehicle, and hybrid engine/motor-type four wheel drive device 有权
标题翻译：车用电驱动装置，混合发动机/电动四轮驱动装置
公开(公告)号：JP2006176120A
公开(公告)日：2006-07-06
申请号：JP2006013945
申请日：2006-01-23
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： TAWARA KAZUO , NISHIDATE KEISUKE , YOSHIDA KENICHI , SHIMIZU HISAYA , INNAMI TOSHIYUKI
IPC分类号： B60W20/00 , B60K6/44 , B60K6/52 , B60L1/00 , B60L11/14 , B60W10/06 , B60W10/08 , B60W10/26 , F02N11/04
CPC分类号： Y02T10/623 , Y02T10/6243 , Y02T10/6265 , Y02T10/6286 , Y02T10/7077
摘要： PROBLEM TO BE SOLVED: To achieve the simplification and miniaturization of the electrical components of a vehicle electric drive device and a hybrid engine/motor-type vehicle drive device, and to reduce costs while maintaining performance. SOLUTION: In this electric driving device, a portion 1 of wheels is driven by an engine 3, and wheels 2 are driven by a motor 5 as necessary. The motor 5 and a generator 13 and an accessory battery 17 are connected to each other via a voltage step-up/down device 16. The voltage step-up/down device 16 is provided with a function for stepping up the power of the battery 17, and for supplying it to the motor 5 and a function for stepping down the power of the generator 13, and supplying it to the battery 17 and an accessory 18 according to operation conditions. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了实现车辆电驱动装置和混合动力/电动车辆驱动装置的电气部件的简化和小型化，并且在保持性能的同时降低成本。解决方案：在该电动驱动装置中，车轮的一部分由发动机3驱动，并且根据需要由电动机5驱动车轮2。马达5和发电机13以及辅助电池17通过升压降压装置16彼此连接。升压降压装置16具有提升电池的功率的功能并且用于将其提供给电动机5和降低发电机13的功率的功能，并且根据操作条件将其提供给电池17和附件18。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2001239852A VEHICLE DRIVE DEVICE 失效
公开(公告)号：JP2001239852A
公开(公告)日：2001-09-04
申请号：JP2000051826
申请日：2000-02-28
申请人： HITACHI LTD
发明人： YAMAMOTO TATSUYUKI , FUKASAKU YOSHINORI , MASUNO KEIICHI , MAEDA YUJI , TAJIMA SUSUMU , SHIMIZU HISAYA , NISHIDATE KEISUKE
IPC分类号： B60K17/356 , B60K6/20 , B60K6/44 , B60K6/52 , B60K6/54 , B60K17/16 , B60K23/08 , B60L15/20 , B60L50/15 , B60L50/16 , B60W10/06 , B60W10/08 , B60W10/30 , B60W20/00 , F02D29/02 , B60K6/02 , B60L11/14
摘要： PROBLEM TO BE SOLVED: To provide a vehicle drive device capable of providing a sufficient drive force. SOLUTION: A high output driving generator 44 is driven by an engine 20. An AC motor 30 is directly driven by an energy from the generator 44. A driving generator output voltage control circuit 60 controls the output voltage of the generator 44 according to the requested drive force of a vehicle so as to control the motor 30.

10. 发明专利

JP2000078818A Motor for stator 审中-公开
标题翻译：电机定子
公开(公告)号：JP2000078818A
公开(公告)日：2000-03-14
申请号：JP24134598
申请日：1998-08-27
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SASAMOTO HISAYA , TAWARA KAZUO , NISHIDATE KEISUKE
IPC分类号： F02N11/00 , H02K23/24
摘要： PROBLEM TO BE SOLVED: To provide a motor for a stator where the durability is raised by preventing the occurrence of spark.
SOLUTION: A motor 10 for a stator has a plurality of main pole field poles 30 fixed at regular intervals to the side of the inside periphery of a yoke 20, and an armature 60 supported rotatably inside the main pole field pole 30, and reactance voltage is negated and spark occurrence is prevented, with the rectified electromotive force generated in an auxiliary pole by a load current by constituting the main pole field pole 30 and the auxiliary pole 40 integrally through a bridge part 46.
COPYRIGHT: (C)2000,JPO
摘要翻译：要解决的问题：提供一种通过防止火花发生而提高耐久性的定子的电动机。解决方案：一种用于定子的电动机10具有多个主磁极30，它们以一定的间隔固定在磁轭20的内周侧，以及电枢60可转动地支撑在主磁极30内，电抗电压通过桥接部件46一体地构成主极场极30和辅助极40，通过负载电流在辅助极中产生的整流电动势被防止并且防止火花发生。

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