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公开(公告)号：US20190066955A1
公开(公告)日：2019-02-28
申请号：US16039420
申请日：2018-07-19
申请人： Yazaki Corporation
IPC分类号： H01H47/00
摘要： A plurality of semiconductor relays is provided between a power source and loads. The semiconductor relays have a function of a current detection for detecting a current passing through themselves. The loads are connected to output terminals respectively. A switching unit arbitrarily selects and switches a connecting destination of the semiconductor relays from among the plurality of output terminals. A microcomputer controls the switching unit on the basis of the detection results of a current flowing through the semiconductor relays, and adjusts the number of the semiconductor relays connected to the same load and connected to each other in parallel.
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公开(公告)号：US20190007264A1
公开(公告)日：2019-01-03
申请号：US15970865
申请日：2018-05-03
申请人： Yazaki Corporation
发明人： Yoshihide Nakamura
摘要： A gateway causes an ECU to set an ID according to the number of loads connected to the ECU. The ECU transmits, to the gateway, a set ID which is according to the loads. If IDs transmitted from a plurality of ECUs are overlapped, the gateway causes the ECU to set an ID according to the number of parallel connections of the loads. The ECU transmits, to the gateway, a set ID which is according to the number of parallel connections. If IDs transmitted from a plurality of ECUs are overlapped, the gateway causes the ECU to set an ID according to a sum of drive currents of the loads.
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公开(公告)号：US09774323B2
公开(公告)日：2017-09-26
申请号：US15267236
申请日：2016-09-16
申请人： Yazaki Corporation
CPC分类号： H03K17/30 , H02J7/0063 , H02J2007/004 , H02J2007/0067 , H03K17/22
摘要： A load drive circuit shuts off power supply to a load when a semiconductor relay is off. The load drive circuit includes: the semiconductor relay which is turned off when a predetermined operation voltage cannot be secured; a low-voltage detection circuit which detects that the operation voltage is a predetermined value or less; a negative-voltage generation circuit which generates a negative voltage; and a switch unit which is turned on and connects between the negative-voltage generation circuit and a ground terminal of the semiconductor relay, in a case where the low-voltage detection circuit detects that the operation voltage is the predetermined value or less.
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公开(公告)号：US11082253B2
公开(公告)日：2021-08-03
申请号：US16559857
申请日：2019-09-04
申请人： Yazaki Corporation
IPC分类号： H04L12/40
摘要： Provided is a communication system capable of performing function addition and design change inexpensively. The communication system includes a plurality of slave devices and a master device communicating with the plurality of slave devices. The control blocks control the slave devices or the master device. The input blocks input the input signals to input ports of the control blocks, respectively. The output blocks include semiconductor relays that are turned on and off according to output signals output from the output ports of the control blocks, respectively. The power supply block supplies power to the control blocks. These blocks are configured on separate substrates. The communication block has a communication I/F circuit. The slave devices or the master device are configured by combining plural types of blocks.
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公开(公告)号：US10972307B2
公开(公告)日：2021-04-06
申请号：US16577257
申请日：2019-09-20
申请人： Yazaki Corporation
发明人： Yoshihide Nakamura
IPC分类号： G06F13/00 , H04L12/403 , H04L12/12 , H04L12/40
摘要： A communication system capable of shortening a setting time of an ID and reducing an incorrect setting is provided. A writing device sequentially transmits an ID of a plurality of slave devices after transmitting of the ID of a master device. The master device includes a plurality of semiconductor relays provided for each of the plurality of master slave devices for supplying power to the corresponding slave devices. The master device receives the ID of the master device from the writing device, and sets it as its own ID. The master device, every time the ID of the plurality of slave devices is received from the writing device after setting the ID of its own, turns on the semiconductor relays in order. The plurality of slave devices sets the ID received after power supply as its own ID.
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公开(公告)号：US10916396B2
公开(公告)日：2021-02-09
申请号：US16039420
申请日：2018-07-19
申请人： Yazaki Corporation
摘要： A plurality of semiconductor relays is provided between a power source and loads. The semiconductor relays have a function of a current detection for detecting a current passing through themselves. The loads are connected to output terminals respectively. A switching unit arbitrarily selects and switches a connecting destination of the semiconductor relays from among the plurality of output terminals. A microcomputer controls the switching unit on the basis of the detection results of a current flowing through the semiconductor relays, and adjusts the number of the semiconductor relays connected to the same load and connected to each other in parallel.
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公开(公告)号：US09413159B2
公开(公告)日：2016-08-09
申请号：US14391833
申请日：2013-04-05
申请人： YAZAKI CORPORATION
摘要： A switching circuit protector switches a semiconductor device (11) provided in a switching circuit connecting a power supply (VB) to a load (RL), from a PWM drive state to a DC drive state when an estimated temperature of a cable of the switching circuit estimated by a temperature estimator (22) exceeds a threshold temperature (Tth), in the state where the semiconductor device (11) is controlled to operate in the PWM drive state to drive the load (RL). Therefore, when an overcurrent is caused in the cable, the estimated temperature exceeds the threshold temperature (Tth) so as to break the semiconductor device (11). Accordingly, the switching circuit can surely be protected by the switching circuit protector.
摘要翻译： 切换电路保护器将设置在将电源（VB）连接到负载（RL）的开关电路中的半导体器件（11）从PWM驱动状态切换到DC驱动状态，当开关电缆的估计温度 在半导体器件（11）被控制为在PWM驱动状态下工作以驱动负载（RL）的状态下，由温度估计器（22）估计的电路超过阈值温度（Tth）。 因此，当在电缆中产生过电流时，估计温度超过阈值温度（Tth），以破坏半导体器件（11）。 因此，开关电路确实可以被开关电路保护器保护。
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公开(公告)号：US20150138682A1
公开(公告)日：2015-05-21
申请号：US14391833
申请日：2013-04-05
申请人： YAZAKI CORPORATION
IPC分类号： H02H3/08
摘要： A switching circuit protector switches a semiconductor device (11) provided in a switching circuit connecting a power supply (VB) to a load (RL), from a PWM drive state to a DC drive state when an estimated temperature of a cable of the switching circuit estimated by a temperature estimator (22) exceeds a threshold temperature (Tth), in the state where the semiconductor device (11) is controlled to operate in the PWM drive state to drive the load (RL). Therefore, when an overcurrent is caused in the cable, the estimated temperature exceeds the threshold temperature (Tth) so as to break the semiconductor device (11). Accordingly, the switching circuit can surely be protected by the switching circuit protector.
摘要翻译： 切换电路保护器将设置在将电源（VB）连接到负载（RL）的开关电路中的半导体器件（11）从PWM驱动状态切换到DC驱动状态，当开关电缆的估计温度 在半导体器件（11）被控制为在PWM驱动状态下工作以驱动负载（RL）的状态下，由温度估计器（22）估计的电路超过阈值温度（Tth）。 因此，当在电缆中产生过电流时，估计温度超过阈值温度（Tth），以破坏半导体器件（11）。 因此，开关电路确实可以被开关电路保护器保护。
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公开(公告)号：US11362509B2
公开(公告)日：2022-06-14
申请号：US16864291
申请日：2020-05-01
申请人： Yazaki Corporation
发明人： Yoshihide Nakamura
摘要： A power supply system includes: a battery; a master device supplied with power from the battery; and a slave device supplied with power from the master device via a first power supply line. The slave device supplies power to a load via a second power supply line. The master device estimates a temperature of the second power supply line. When the estimated temperature of the second power supply line is higher than a second cutoff threshold, power supply via the second power supply line is cut off.
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公开(公告)号：US10936236B2
公开(公告)日：2021-03-02
申请号：US15924645
申请日：2018-03-19
申请人： Yazaki Corporation
摘要： Provided are a rewriting system capable of shortening rewrite time, a rewriting system and a computer used for the rewriting system. The rewriting system includes an ECU and a rewriting device for at least transmitting to the ECU a rewrite data of memory contents stored in a flash ROM 14B (memory), the flash ROM 14B (memory) includes a rewrite target area A2 in which the memory contents to be rewritten are stored and a non-rewrite target area A1 in which the memory contents not to be rewritten are stored, and the rewriting device transmits the rewrite data of the memory contents to the ECU only for the memory contents of the rewrite target area in the flash ROM 14B (memory).
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