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1. 发明授权

US5977651A Drive circuit for vehicle occupant safety apparatus 失效
标题翻译：车辆乘员安全装置的驱动电路
公开(公告)号：US5977651A
公开(公告)日：1999-11-02
申请号：US962321
申请日：1997-10-31
申请人： Nobumasa Ueda , Nobuo Mayumi , Mitsuhiro Saitou , Shoichi Okuda
发明人： Nobumasa Ueda , Nobuo Mayumi , Mitsuhiro Saitou , Shoichi Okuda
IPC分类号： B60R21/16 , B60R21/01 , G05F3/26 , B60R21/32
CPC分类号： B60R21/017 , G05F3/265
摘要： A drive circuit for a vehicle occupant safety apparatus includes a device for activating the vehicle occupant safety apparatus. A first transistor is connected in series with the device. A constant-current circuit receives electric energy from a power supply, and feeds a constant current to the device when the first transistor falls into its on state. The constant-current circuit includes a second transistor connected in series with the device. The second transistor includes an N-channel field-effect transistor. A third transistor is connected to the second transistor. The second and third transistors form a current mirror circuit. The third transistor includes an N-channel field-effect transistor. A voltage between a gate and a source of the third transistor is regulated at a constant level. Gate voltages of the second and third transistors are controlled in response to source voltages of the second and third transistors to equalize the source voltages of the second and third transistors.
摘要翻译：用于车辆乘员安全装置的驱动电路包括用于启动车辆乘员安全装置的装置。第一晶体管与器件串联连接。恒流电路从电源接收电能，并且当第一晶体管处于其导通状态时，将恒定电流馈送到器件。恒流电路包括与该装置串联连接的第二晶体管。第二晶体管包括N沟道场效应晶体管。第三晶体管连接到第二晶体管。第二和第三晶体管形成电流镜电路。第三晶体管包括N沟道场效应晶体管。第三晶体管的栅极和源极之间的电压被调节在恒定水平。响应于第二和第三晶体管的源电压来控制第二和第三晶体管的栅极电压，以均衡第二和第三晶体管的源极电压。

2. 发明授权

US5995891A Automotive occupant restraint system with energy reserve circuit 失效
标题翻译：具有储能电路的汽车乘员约束系统
公开(公告)号：US5995891A
公开(公告)日：1999-11-30
申请号：US847335
申请日：1997-04-23
申请人： Nobuo Mayumi , Nobumasa Ueda
发明人： Nobuo Mayumi , Nobumasa Ueda
IPC分类号： B60R21/16 , B60R16/02 , B60R16/03 , B60R21/01 , G01P15/08 , H02J9/06 , H02M3/07 , B60R21/32 , G06G7/76
CPC分类号： B60R21/017 , G01P15/08 , H02J9/06 , H02M3/073 , B60R16/03
摘要： An automotive occupant restraint system with a simple and compact energy reserve circuit is provided which includes an occupant restraint mechanism, a step-up circuit, a backup capacitor, a crash monitor, a firing circuit, and a switching circuit. The step-up circuit steps up the voltage supplied from a battery to charge the backup capacitor up to a given voltage level. The crash monitor monitors a vehicle crash to provide a crash signal. The firing circuit is responsive to the crash signal to activate the occupant restraint mechanism. The switching circuit selects between a first and a second power supply mode. The first power supply mode is established to block communication between the backup capacitor and the crash monitor when a sufficient amount of electrical energy of the battery is supplied to the crash monitor, while the second power supply mode is established to communicate the backup capacitor to the crash monitor when the electrical energy supplied from the battery drops below a given voltage level to supply electrical energy stored in the backup capacitor to the crash monitor.
摘要翻译：提供一种具有简单紧凑的能量储存电路的汽车乘员约束系统，其包括乘员约束机构，升压电路，后备电容器，碰撞监视器，点火电路和开关电路。升压电路升压从电池供电的电压，以将备用电容器充电至给定的电压电平。碰撞监视器监视车辆碰撞以提供碰撞信号。发射电路响应于碰撞信号以激活乘员约束机构。开关电路在第一和第二电源模式之间进行选择。建立第一电源模式以阻止备用电容器和碰撞监视器之间的通信，当电池的足够量的电能提供给碰撞监视器时，建立第二电源模式以将备用电容器传送到当从电池供应的电能降到低于给定的电压水平以将存储在备用电容器中的电能提供给碰撞监视器时，碰撞监视器。

3. 发明授权

US07804843B2 Communication apparatus and method of airbags for a vehicle 有权
标题翻译：车辆安全气囊的通信装置和方法
公开(公告)号：US07804843B2
公开(公告)日：2010-09-28
申请号：US11400813
申请日：2006-04-07
申请人： Nobuo Mayumi
发明人： Nobuo Mayumi
IPC分类号： H04J7/02
CPC分类号： H04L12/403 , B60R2021/01068 , B60R2021/01115 , H04L69/28 , H04L2012/40273
摘要： A communication apparatus in an airbag system includes an airbag ECU as a master unit, sets of communication lines and slave sensor devices. The slave sensor devices are respectively connected to the airbag ECU through the set of communication lines. The airbag ECU transmits data transmission request commands to the respective sets of communication lines at timings which are different from each other. Thus, transmission timings in the respective sets of communication lines are prevented from being synchronized, and noise which develops in consequence of the data communications between the master unit and the slave sensor devices can be reduced.
摘要翻译：气囊系统中的通信装置包括作为主单元的气囊ECU，通信线路组和从属传感器设备。从属传感器装置分别通过一组通信线路连接到安全气囊ECU。安全气囊ECU在彼此不同的定时向各组通信线路发送数据发送请求命令。因此，防止各组通信线路中的发送定时不同步，并且可以减少由于主单元和从属传感器设备之间的数据通信而产生的噪声。

4. 发明申请

US20060235593A1 Communication apparatus and method 有权
标题翻译：通讯装置及方法
公开(公告)号：US20060235593A1
公开(公告)日：2006-10-19
申请号：US11400813
申请日：2006-04-07
申请人： Nobuo Mayumi
发明人： Nobuo Mayumi
IPC分类号： B60R22/00
CPC分类号： H04L12/403 , B60R2021/01068 , B60R2021/01115 , H04L69/28 , H04L2012/40273
摘要： A communication apparatus in an airbag system includes an airbag ECU as a master unit, sets of communication lines and slave sensor devices. The slave sensor devices are respectively connected to the airbag ECU through the set of communication lines. The airbag ECU transmits data transmission request commands to the respective sets of communication lines at timings which are different from each other. Thus, transmission timings in the respective sets of communication lines are prevented from being synchronized, and noise which develops in consequence of the data communications between the master unit and the slave sensor devices can be reduced.
摘要翻译：气囊系统中的通信装置包括作为主单元的气囊ECU，通信线路组和从属传感器设备。从属传感器装置分别通过一组通信线路连接到安全气囊ECU。安全气囊ECU在彼此不同的定时将数据发送请求命令发送到各组通信线路。因此，防止各组通信线路中的发送定时不同步，并且可以减少由于主单元和从属传感器设备之间的数据通信而产生的噪声。

5. 发明申请

US20050179424A1 Voltage booster circuit having back-up circuit and battery voltage boosting method 有权
标题翻译：升压电路具有备用电路和电池升压方式
公开(公告)号：US20050179424A1
公开(公告)日：2005-08-18
申请号：US11019260
申请日：2004-12-23
申请人： Nobuo Mayumi
发明人： Nobuo Mayumi
IPC分类号： B60R16/03 , B60R16/02 , B60R21/16 , G05F1/40 , H02M1/36 , H02M3/155 , H02M3/156
CPC分类号： H02M1/36 , H02M3/1563
摘要： In a voltage booster circuit, a switching transistor turns on and off a flow of an electric current in a booster coil thereby to boost a voltage supplied form a d.c. power source. A back-up circuit is connected to the booster coil to store the boosted voltage as an output voltage. A current detection circuit detects an electric current flowing in the switching transistor and turns off the switching transistor, when the detected current reaches a predetermined level. An off-period control circuit variably controls an off-period of the switching transistor after the switching transistor is turned off. The off-period control circuit varies the off-period in accordance with a voltage difference between the output voltage and an upper limit threshold voltage. The off-period of the switching transistor is increased as the output voltage increases toward the upper limit threshold voltage
摘要翻译：在升压电路中，开关晶体管导通和断开升压线圈中的电流，从而提高从直流电流提供的电压。能量源。备用电路连接到升压线圈，以将升压电压存储为输出电压。当检测到的电流达到预定水平时，电流检测电路检测在开关晶体管中流动的电流并关断开关晶体管。断开控制电路在开关晶体管截止之后可变地控制开关晶体管的截止周期。断开控制电路根据输出电压和上限阈值电压之间的电压差来改变截止周期。开关晶体管的截止周期随着输出电压朝着上限阈值电压而增加

6. 发明授权

US5859583A Occupant protection system for automotive vehicle 失效
标题翻译：汽车乘员保护系统
公开(公告)号：US5859583A
公开(公告)日：1999-01-12
申请号：US677735
申请日：1996-07-10
申请人： Nobuo Mayumi , Mitsuhiko Masegi
发明人： Nobuo Mayumi , Mitsuhiko Masegi
IPC分类号： B60R22/46 , B60R21/01 , B60R21/16 , H02J9/06 , B60Q1/00 , B60R21/32
CPC分类号： B60R21/017 , H02J9/061
摘要： An occupant protection system for an automotive vehicle is provided which includes a pair of squibs for activating a pair of occupant protection units such as an airbag unit and a pretensioner for a seat belt, a backup capacitor, and a switching circuit. The switching circuit serves to allow the electric power stored in the backup capacitor to be supplied to at least one of the occupant protection units upon occurrence of a collision of the vehicle with another object when a sufficient power is not supplied from the power source to the squibs or when a line connected to the power source is broken by the collision of the vehicle.
摘要翻译：提供了一种用于机动车辆的乘员保护系统，其包括一对用于启动一对乘员保护单元（例如安全气囊单元和用于安全带的预紧器），备用电容器和开关电路的爆管。开关电路用于当没有从电源向电源供应足够的电力时，在发生车辆与另一物体的碰撞时，将存储在备用电容器中的电力提供给至少一个乘员保护单元当连接到电源的线被车辆的碰撞破坏时。

7. 发明授权

US4665354A Battery voltage regulator for vehicles 失效
标题翻译：汽车电池电压调节器
公开(公告)号：US4665354A
公开(公告)日：1987-05-12
申请号：US762832
申请日：1985-08-06
申请人： Takeshi Sada , Hidetoshi Kato , Hiroshi Shibata , Kazumasa Mori , Nobuo Mayumi , Hirohide Sato , Yoshio Akita , Shigeru Tanaka
发明人： Takeshi Sada , Hidetoshi Kato , Hiroshi Shibata , Kazumasa Mori , Nobuo Mayumi , Hirohide Sato , Yoshio Akita , Shigeru Tanaka
IPC分类号： H02J7/14 , H02J7/24 , H02J7/16
CPC分类号： H02J7/242 , H02J7/1461
摘要： A battery voltage regulator for a vehicle charging system includes a voltage control circuit for controlling a battery terminal voltage and an external terminal connected to the positive terminal of a battery through the series combination of a charge lamp and an ignition switch. The regulator is at least composed of a charge lamp drive circuit responsive to a generation output of an alternator in order to energize the charge lamp, a power supply circuit responsive to the potential at the above mentioned external terminal to supply operational power to the voltage control circuit, and a malfunction-preventing circuit connected between the above mentioned external terminal and ground. The malfunction-preventing circuit prevents the power supply circuit from operating by disturbances such as leakage current flowing into the regulator through the external terminal. The regulator may further include a backup circuit responsive to the generation output of the alternator to separately supply operational power to the regulator circuit irrespective of the operation of the power supply circuit when the generation output reaches a voltage value which is higher than the above mentioned potential value at the external terminal by which the power supply circuit is energized, whereby the battery terminal voltage may be continuously maintained constant to a desired level even when a break in the charge lamp conductor has occurred.
摘要翻译：用于车辆充电系统的电池电压调节器包括用于通过充电灯和点火开关的串联组合来控制电池端子电压的电压控制电路和连接到电池的正极端子的外部端子。调节器至少由响应于交流发电机的发电输出的充电灯驱动电路组成，以便为充电灯通电;电源电路响应于上述外部端子处的电位向电压控制器提供工作电源电路和连接在上述外部端子和地之间的故障防止电路。故障防止电路通过外部端子流入调节器的漏电流等干扰来防止电源电路的工作。调节器还可以包括响应于交流发电机的发电输出的备用电路，以便在发电输出达到高于上述电位的电压值时，与供电电路的操作无关地向调节器电路单独提供工作功率在电源电路被通电的外部端子处的值，由此即使发生充电指示灯导体的中断，电池端子电压也可以连续地保持恒定到期望的水平。

8. 发明授权

US4634954A Voltage regulator for alternating current generator 失效
标题翻译：交流发电机用电压调节器
公开(公告)号：US4634954A
公开(公告)日：1987-01-06
申请号：US635181
申请日：1984-07-27
申请人： Hidetoshi Kato , Nobuo Mayumi , Shin Kusase , Hajime Matsuhashi
发明人： Hidetoshi Kato , Nobuo Mayumi , Shin Kusase , Hajime Matsuhashi
IPC分类号： H02J7/16 , H02J7/24 , H02J7/14
CPC分类号： H02J7/245 , Y02T10/92
摘要： A voltage regulating system for an automotive vehicle having a switching transistor connected to a field winding of an alternating current generator and a regulator for comparing a battery voltage with a reference value and for driving the transistor into a conductive state when the battery voltage is lower than the reference value. A current limiting circuit is provided for limiting the field current when the switching transistor is going to be driven into the conductive state over a predetermined interval, so that a maximum charging current can be obtained and an unfavorable heating of the switching transistor can be avoided.
摘要翻译：一种用于机动车辆的电压调节系统，具有连接到交流发电机的励磁绕组的开关晶体管和用于将电池电压与参考值进行比较的调节器，并且用于当电池电压低于驱动晶体管时导通状态参考值。提供限流电路，用于在开关晶体管将在预定间隔内被驱动到导通状态时限制励磁电流，从而可以获得最大充电电流，并且可以避免开关晶体管的不利加热。

9. 发明授权

US4590414A Battery voltage regulation system 失效
标题翻译：电池电压调节系统
公开(公告)号：US4590414A
公开(公告)日：1986-05-20
申请号：US680959
申请日：1984-12-12
申请人： Nobuo Mayumi , Hidetoshi Kato , Hajime Matsuhashi
发明人： Nobuo Mayumi , Hidetoshi Kato , Hajime Matsuhashi
IPC分类号： H02J7/24 , H02P9/30 , H02J7/00
CPC分类号： H02J7/245 , Y02T10/92
摘要： A battery voltage regulating system for an automotive vehicle, wherein a field current flowing through a field coil of an alternator is periodically cut off irrespectively of whether a battery voltage is higher or lower than a reference voltage, and a conduction ratio of the field current is controlled in accordance with a difference between the battery voltage and the reference voltage. The reference voltage is changed in response to an increase or decrease of the conduction ratio, so that a battery voltage is prevented from decreasing when the conduction ratio is increased.
摘要翻译：一种用于机动车辆的电池电压调节系统，其中流过交流发电机的励磁线圈的励磁电流被周期性地切断，而不管电池电压是高于还是低于参考电压，并且励磁电流的导通比为根据电池电压和参考电压之间的差异进行控制。参考电压响应于导通比的增加或减小而改变，使得当导通率增加时，可以防止电池电压降低。

10. 发明授权

US4525662A Battery charging control system for automobile 失效
标题翻译：汽车电池充电控制系统
公开(公告)号：US4525662A
公开(公告)日：1985-06-25
申请号：US554390
申请日：1983-11-22
申请人： Hidetoshi Kato , Takeshi Sada , Nobuo Mayumi , Hajime Matsuhashi
发明人： Hidetoshi Kato , Takeshi Sada , Nobuo Mayumi , Hajime Matsuhashi
IPC分类号： H02J7/16 , H02J7/24 , H02J7/14 , H02P9/30
CPC分类号： H02J7/245 , Y02T10/92
摘要： A battery charging control system for automobile, wherein a voltage regulator for regulating the output voltage of an AC generator for charging the automobile battery is controlled by detecting changes of the output voltage. When the output voltage of the generator changing with ripples is reduced with an increase of load current, the minimum value of the output voltage is detected, while when the output voltage increases with an increase of the generator rotational speed, an average value of the output voltage is detected. In accordance with these values, the voltage regulator is controlled to compensate for the changes of the output voltage of the generator.
摘要翻译：一种用于汽车的电池充电控制系统，其中通过检测输出电压的变化来控制用于调节用于对汽车电池充电的AC发电机的输出电压的电压调节器。当发生器随波纹变化的输出电压随负载电流的增加而减小时，检测输出电压的最小值，而当输出电压随发电机转速的增加而增加时，输出的平均值检测到电压。根据这些值，电压调节器被控制以补偿发电机的输出电压的变化。

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