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1. 发明授权

US08928291B2 Electric rotary machine for motor vehicle 有权
标题翻译：汽车电动旋转机
公开(公告)号：US08928291B2
公开(公告)日：2015-01-06
申请号：US13933729
申请日：2013-07-02
申请人： Denso Corporation
发明人： Toshinori Maruyama , Masaya Nakanishi , Asaka Kimura , Takatoshi Inokuchi
IPC分类号： H02P11/00
CPC分类号： H02P9/102 , H02P9/107 , H02P9/48
摘要： An alternator has rectifying module groups. The rectifying module groups form a bridge circuit. The rectifying module groups have a load dump protection judgment section for monitoring an output voltage of rectifying module groups. When the monitored output voltage exceeds a first threshold voltage, the load dump protection judgment section provides to a control section an instruction to turn on MOS transistors in a lower arm of the bridge circuit at a time when a predetermined delay time has elapsed. When a second threshold voltage is lower than the first threshold voltage and the monitored output voltage becomes less than the second threshold voltage after the monitored output voltage exceeds the first threshold voltage, the load dump protection judgment section provides to the control circuit an instruction to turn on the MOS transistors in the lower arm after the MOS transistors are turned off during a predetermined time length.
摘要翻译：交流发电机具有整流模块组。整流模块组成桥接电路。整流模块组具有负载突降保护判断部分，用于监控整流模块组的输出电压。当监视的输出电压超过第一阈值电压时，负载突降保护判断部分在经过预定的延迟时间的时候向控制部分提供在桥接电路的下臂中接通MOS晶体管的指令。当第二阈值电压低于第一阈值电压，并且在监视的输出电压超过第一阈值电压之后监视的输出电压变得小于第二阈值电压时，负载突降保护判断部分向控制电路提供转向指令在MOS晶体管在预定时间长度内关闭之后，在下臂中的MOS晶体管上。

2. 发明授权

US09628007B2 Power generator with load-dump protection 有权
公开(公告)号：US09628007B2
公开(公告)日：2017-04-18
申请号：US14922593
申请日：2015-10-26
申请人： DENSO CORPORATION
发明人： Asaka Kimura , Takatoshi Inokuchi , Masaya Nakanishi , Toshinori Maruyama
IPC分类号： H02P9/10 , H02P9/14 , H02P9/00 , H02P29/024 , H02P11/00 , H02H7/06
CPC分类号： H02P9/006 , H02P29/0241
摘要： In a power generator, a determiner determines whether a phase voltage output from each of multiphase armature windings has exceeded a threshold voltage. A turn-on unit turns on at least one of the protective switches as a target protective switch to limit the output voltage of the rectifier circuit to be lower than the threshold voltage upon the phase voltage output from at least one of the multiphase armature windings corresponding to the at least one of the protective switches has exceeded the threshold voltage.

3. 发明授权

US09716456B2 Rotary electric machine capable of detecting malfunction in switch 有权
公开(公告)号：US09716456B2
公开(公告)日：2017-07-25
申请号：US14694257
申请日：2015-04-23
申请人： DENSO CORPORATION
发明人： Toshinori Maruyama , Takatoshi Inokuchi , Masaya Nakanishi
IPC分类号： G01R31/02 , H02P11/00 , H02P23/00 , H02K1/26 , H02K11/04 , H02J7/16 , H02P9/48 , H02P9/08
CPC分类号： H02P23/00 , H02J7/163 , H02K1/26 , H02K11/044 , H02P9/08 , H02P9/48
摘要： In a rotary electric machine, a modulation signal generator generates a modulation signal including information indicative of rotation of a rotor based on change of a voltage at an output end of a stator winding, and outputs the modulation signal. A rectifying unit alternately turns on and off the switch to rectify the voltage at an output end of the stator winding, thus generating a rectified voltage. An excitation current supplying circuit is communicably connected to the modulation signal generator via a communication line, and starts a supply of an excitation current to the excitation winding of the rotor to induce a rotating magnetic field in the stator winding when the modulation signal output from the modulation signal generator is input thereto via the communication line.

4. 发明授权

US09172240B2 Electric rotating machine with load dump protector 有权
标题翻译：带旋转保护器的旋转电机
公开(公告)号：US09172240B2
公开(公告)日：2015-10-27
申请号：US13969907
申请日：2013-08-19
申请人： DENSO CORPORATION
发明人： Toshinori Maruyama , Takatoshi Inokuchi , Asaka Kimura , Masaya Nakanishi
IPC分类号： H02H9/04 , H02P9/10
CPC分类号： H02H9/04 , H02P9/107
摘要： An electric rotating machine for a vehicle is equipped with a load dump protector. The load dump protector works to selectively perform a first and a second load dump protection operation to suppress a voltage surge arising from the load dump. When a rate at which an output voltage from the electric rotating machine is determined to be smaller than a given value, the load dump protector waits for stating the first load dump protection operation until the time when a voltage surge arising from changing of switching devices of a rectifier module of the electric rotating machine is expected to be suppressed and then performs the first load dump protection operation. When the rate is greater than the given value, the load dump protector immediately initiates the second load dump protection operation. This ensures the stability in eliminating the risk of a voltage surge arising from the load dump.
摘要翻译：一种用于车辆的电动旋转机器配备有负载突降保护器。负载突降保护器用于选择性地执行第一次和第二次负载突降保护操作，以抑制由负载突降引起的电压浪涌。当将来自旋转电机的输出电压确定为小于给定值的速率时，负载突降保护器等待说明第一负载突降保护操作，直到由于开关装置的变化引起的电压浪涌期望旋转电机的整流器模块被抑制，然后执行第一负载突降保护操作。当速率大于给定值时，负载转储保护器立即启动第二次负载突降保护操作。这确保了在消除由负载突降引起的电压浪涌风险的稳定性。

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