专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US11128523B2 Electronic controller and communication apparatus 有权
公开(公告)号：US11128523B2
公开(公告)日：2021-09-21
申请号：US16338279
申请日：2017-10-24
申请人： HITACHI AUTOMOTIVE SYSTEMS, LTD.
发明人： Hiroshi Iwasawa , Teppei Hirotsu , Mitsuhiko Watanabe
IPC分类号： H04L12/24 , H04L12/40 , H04L12/26 , H04L25/02
摘要： The present invention provides an electronic controller and the like capable of identifying the order of communication apparatuses connected to a bus while minimizing manufacturing cost. In the present invention, bus wiring 2 has one end connected to a port 111 and the other end connected to a port 112. A plurality of lower ECUs 301 to 304 are connected to the bus wiring 2. A current sensor CS measures current Is1 flowing through the port 111 and current Is2 flowing through the port 112 by applying current to the bus wiring 2 from each of the plurality of lower ECUs 301 to 304. The higher controller 12 identifies the order of the plurality of lower ECUs 301 to 304 on the bus wiring 2 on the basis of the current Is1 and the current Is2 which are measured for each of the plurality of lower ECUs 301 to 304.

2. 发明授权

US11449091B2 Electronic control device 有权
公开(公告)号：US11449091B2
公开(公告)日：2022-09-20
申请号：US16608567
申请日：2018-04-06
申请人： Hitachi Automotive Systems, Ltd.
发明人： Teppei Hirotsu , Hiroshi Iwasawa , Atsushi Arata
IPC分类号： G09G5/00 , G06F1/12 , B60W50/06 , G06F1/04 , G06F1/3296
摘要： There is provided a technology capable of synchronizing a plurality of timers with a simple circuit configuration in an electronic control unit that controls a vehicle. An electronic control unit according to the present invention concatenates a second timer value as the most significant bit of a first timer value reset by a synchronization signal, and counts up the second timer value by the synchronization signal.

3. 发明授权

US09800137B2 Power supply startup system 有权
公开(公告)号：US09800137B2
公开(公告)日：2017-10-24
申请号：US14769744
申请日：2013-02-27
申请人： HITACHI AUTOMOTIVE SYSTEMS, LTD.
发明人： Takahide Terada , Mutsumi Kikuchi , Akihiko Kudo , Takanori Yamazoe , Hiroshi Iwasawa
IPC分类号： H01F27/42 , H02M1/36 , H02J17/00 , H02J5/00
CPC分类号： H02M1/36 , H02J5/005 , H02J7/025 , H02J17/00 , H02J50/00 , H02J50/10
摘要： A power supply startup system activates a power supply of a device provided with a battery or the like at high speed by a wireless signal while suppressing current consumption on standby. The power supply startup system includes a battery, a device supplied with a power from the battery, and a controller which performs wireless communication with the device. The device includes a power supply section which generates a power supply from the battery, a startup section which receives a wireless startup signal transmitted by the controller and outputs a startup signal to the power supply section, a control section which controls the power supply section and the startup section, and a wireless communication section which performs wireless communication with the controller. The wireless startup signal includes at least two signal regions of a first stage and a second stage.

4. 发明申请

US20140130596A1 ANGULAR VELOCITY DETECTION DEVICE 审中-公开
标题翻译：角速度检测装置
公开(公告)号：US20140130596A1
公开(公告)日：2014-05-15
申请号：US14129054
申请日：2012-06-20
申请人： Hitachi Automotive Systems, Ltd.
发明人： Toshiaki Nakamura , Masahiro Matsumoto , Hiroshi Iwasawa , Satoshi Asano , Masahide Hayashi
IPC分类号： G01P3/42
CPC分类号： G01P3/42 , G01C19/5726
摘要： The purpose of the present invention is to achieve accurate angular velocity detection even when an angular velocity detection sensor is set in an environment in which oscillation and electromagnetic noise have significant influence. Provided is an angular velocity detection device which has an oscillating body displaceable in first and second directions that are perpendicular to each other, and which detects, as an angular velocity, a displacement of the oscillating body in the second direction while the oscillating body is being oscillated in the first direction, wherein in accordance with a frequency change in a drive signal for oscillating the oscillating body in the first direction, the frequency of a servo signal for detecting the angular velocity from the quantity of displacement in the second direction is changed (see FIG. 1).
摘要翻译：本发明的目的在于即使将角速度检测传感器设置在振荡和电磁噪声具有显着影响的环境中，也能够实现精确的角速度检测。提供了一种角速度检测装置，其具有在第一和第二方向上彼此垂直的摆动体，并且在摆动体为第二方向时，以角速度检测振动体在第二方向上的位移在第一方向上振荡，其中根据用于在第一方向上振动振荡体的驱动信号的频率变化，改变用于从第二方向上的位移量检测角速度的伺服信号的频率（参见图1）。

5. 发明授权

US10014699B2 Battery monitoring device 有权
公开(公告)号：US10014699B2
公开(公告)日：2018-07-03
申请号：US14913842
申请日：2014-08-06
申请人： HITACHI AUTOMOTIVE SYSTEMS, LTD.
发明人： Hiroshi Iwasawa , Akihiko Kudo , Mitsuo Noda , Mutsumi Kikuchi , Tomonori Kanai
IPC分类号： G01N27/416 , H02J7/00 , H01M10/48 , G01R31/36 , G01R19/25
CPC分类号： H02J7/0029 , G01R19/2509 , G01R31/3835 , G01R31/396 , H01M10/48 , H01M10/482 , H02J7/00 , H02J7/0026 , H02J7/0081 , H02J2007/0037
摘要： Even with a large ripple voltage superposed on a voltage of a battery cell, the voltage of the battery cell can be measured accurately. In a battery monitoring device, a supply circuit, based on a reference voltage inputted from an assembled battery, generates a driving voltage for driving each of switching elements, of a selection circuit and supplies the driving voltage to the selection circuit. The reference voltage is inputted from the assembled battery to the supply circuit via a detecting filter circuit. As a result, a time constant of a route through which the reference voltage is inputted from the assembled battery to the supply circuit is approximately equal to time constants of detecting filter circuits.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式