WO2019054128A1 - Appareil de verrouillage pour dispositif à haute tension - Google Patents

Appareil de verrouillage pour dispositif à haute tension Download PDF

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Publication number
WO2019054128A1
WO2019054128A1 PCT/JP2018/030591 JP2018030591W WO2019054128A1 WO 2019054128 A1 WO2019054128 A1 WO 2019054128A1 JP 2018030591 W JP2018030591 W JP 2018030591W WO 2019054128 A1 WO2019054128 A1 WO 2019054128A1
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WIPO (PCT)
Prior art keywords
voltage
interlock
output
level
voltage level
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PCT/JP2018/030591
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English (en)
Japanese (ja)
Inventor
吉田　浩
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サンデン・オートモーティブコンポーネント株式会社
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Application filed by サンデン・オートモーティブコンポーネント株式会社 filed Critical サンデン・オートモーティブコンポーネント株式会社
Priority to CN201880059656.7A priority Critical patent/CN111094074B/zh
Priority to DE112018005169.2T priority patent/DE112018005169T5/de
Publication of WO2019054128A1 publication Critical patent/WO2019054128A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0038—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L1/00—Supplying electric power to auxiliary equipment of vehicles

Definitions

  • the present invention relates to an interlock device for detecting disconnection of a connector for connecting a high voltage device such as an electric compressor mounted on a vehicle to a high voltage power source, for example.
  • an electric compressor constituting an air conditioner of a vehicle is connected to a high voltage power supply (HV battery) by a connector (HV connector).
  • HV battery high voltage power supply
  • HV connector a connector
  • an interlock loop of an interlock device is juxtaposed to the connector in order to detect the disconnection of the connector.
  • the interlock loop also becomes a closed circuit or an open circuit by the connection or non-connection (disconnection) of the connector.
  • a signal of a constant level (H level or L level) is output from the controller to the interlock loop, and the interlock loop is opened to reverse the signal level to the controller, thereby disconnecting the connector. It is configured to detect (disengagement) (see, for example, Patent Document 1).
  • the conventional interlock device can detect the disconnection of the connector.
  • the connector can be disconnected properly. There was a problem that it could not be detected.
  • the present invention has been made to solve such conventional technical problems, and it is possible not only to enable the diagnosis of the connection and disconnection of the connector when the interlock device is normal, but also to the failure of the interlock loop. It is an object of the present invention to provide an interlock device for high voltage equipment capable of accurately detecting the disconnection of the connector as a non-safe state (connector disconnection, failure, etc.) even in the event of failure of the interlock device itself including .
  • the interlock device for high voltage devices includes an interlock loop juxtaposed to an HV connector for connecting a high voltage device mounted on a vehicle to a high voltage power supply, and an interlock.
  • a voltage level generation unit that generates different voltage levels according to the state of the loop, a voltage level determination unit that outputs a determination result consisting of an L / H signal according to the voltage level generated by the voltage level generation unit, a voltage level A fault diagnosis unit that diagnoses the state of the interlock loop based on the output of the determination unit, and a detection switching signal output unit that outputs an L / H signal, and the voltage level generation unit detects the state of the interlock loop and the detection switching signal
  • the failure diagnostic unit generates different voltage levels according to the output of the output unit, and the fault diagnosis unit generates an output of the voltage level determination unit with respect to the output of the detection switching signal output unit.
  • the interlock device for high voltage equipment according to the invention of claim 2 is characterized in that in the above respective inventions, the failure diagnosis unit diagnoses a failure of the interlock device itself including failure of at least connection of HV connector and disconnection of interlock loop. It is characterized by In the high voltage equipment interlock device according to the invention of claim 3, in each of the inventions described above, the voltage level generation unit comprises a voltage dividing circuit having a plurality of resistors connected to the same power supply as the voltage level determination unit. An interlock loop is connected to the voltage dividing circuit.
  • the interlock apparatus for high voltage equipment according to the invention of claim 4 is characterized in that in each of the above inventions, the voltage level judging unit is constituted by a plurality of comparators.
  • the high voltage equipment interlock device according to the invention of claim 5 is characterized in that it is provided in the high voltage equipment in each of the above inventions.
  • the high voltage equipment interlock device according to the invention of claim 6 is characterized in that in each of the above inventions, the high voltage equipment is an electric compressor mounted on a vehicle.
  • the interlock device for high voltage equipment has an interlock loop provided in parallel with an HV connector for connecting a high voltage equipment mounted on a vehicle to a high voltage power supply, and a different voltage according to the state of the interlock loop.
  • Voltage level generation unit generating a level, a voltage level determination unit outputting a determination result consisting of an L / H signal according to the voltage level generated by the voltage level generation unit, and an output based on the output of the voltage level determination unit
  • a fault diagnosis unit that diagnoses the state of the lock loop, and a detection switching signal output unit that outputs an L / H signal.
  • the voltage level generation unit differs depending on the state of the interlock loop and the output of the detection switching signal output unit.
  • the fault diagnosis unit While generating a voltage level, the fault diagnosis unit generates an interrogation from the combination of the output of the voltage level determination unit to the output of the detection switching signal output unit. Since the condition of the croup is diagnosed, the failure diagnosis unit diagnoses the failure of the interlock device itself including the failure of the connection, disconnection and interlock loop of the HV connector as shown in the invention of claim 2 Will be able to do. As a result, even in the event of failure of the interlock device for high voltage equipment itself including failure of the interlock loop, connector disconnection is properly diagnosed as a non-safe state (connector disconnection, failure etc.) (connector is in connection state And so forth)).
  • the voltage level generation unit is constituted by a voltage dividing circuit having a plurality of resistors connected to the same power supply as the voltage level judging unit, and an interlock loop is connected to this voltage dividing circuit.
  • the voltage level generated by the voltage level generation unit changes in the interlock loop state (closed circuit, open circuit, power supply short circuit, ground short circuit), and it becomes possible to diagnose them properly.
  • the voltage level determination unit is composed of a plurality of comparators
  • the voltage level of the voltage level generation unit which changes in accordance with the state of the interlock loop, comprises L / H signals. It becomes possible to output the determination result.
  • the interlock device for high voltage equipment as in the invention of claim 5 in the high voltage equipment, for example, as in the case of the high voltage equipment mounted on the vehicle, the interlock for the controller of the vehicle It is possible to perform failure diagnosis on the high voltage equipment side without connecting a loop.
  • the above-mentioned high voltage equipment interlock device is extremely effective when applied to an electric compressor as a high voltage equipment mounted on a vehicle according to the invention of claim 6.
  • FIG. 6 is a diagram showing an embodiment of an electric circuit of the state detection / determination circuit 17 in FIG. 1; It is a figure explaining the state of the interlock loop of FIG. 2, the voltage level of each point, and operation
  • FIG. 6 is a diagram showing an embodiment of an electric circuit of the state detection / determination circuit 17 in FIG. 1; It is a figure explaining the state of the interlock loop of FIG. 2, the voltage level of each point, and operation
  • FIG. 1 shows a functional block of a motor-driven compressor inverter 1 constituting an air conditioner of a vehicle as a high voltage apparatus to which the present invention is applied.
  • reference numeral 2 denotes a motor for driving an electric compressor, which is driven by an inverter output circuit 3.
  • a high voltage detection sensor 4 and a filter / capacitor 6 are connected to an HV battery 8 as a high voltage power supply mounted on a vehicle via an HV connector 7.
  • Reference numeral 9 denotes a controller constituted by a microcomputer, and the controller 9 controls the drive of the motor 2 of the electric compressor.
  • the controller 9 is connected to the LIN transceiver 13 via the bi-directional digital isolator 11 and the optical coupler 12, and this LIN transceiver 13 is connected via a connector (LV connector) 14 and a vehicle communication bus 15 to a controller (not shown) Connected to the ECU).
  • the controller 9 is connected to the inverter output circuit 3 and outputs a drive signal to control the inverter output circuit 3 based on the instruction information from the controller on the vehicle side provided from the LIN transceiver 13.
  • 16 is an interlock loop, which is juxtaposed to the HV connector 7, and the loop is closed (closed circuit) when the HV connector 7 is connected, and the loop is opened (open circuit) in the non-connected (disconnected) state. Are configured.
  • the interlock loop 16 is connected to the state detection determination circuit 17, and the state detection determination circuit 17 is connected to the controller 9.
  • the low voltage power supply LV + / LV- connected to the inverter is supplied to the inverter circuit as a 12V power supply / LVGND.
  • 18 is a DC-DC converter for generating a 15V power supply 21 and a 5V power supply (HV side) 22 from a 12V power supply 19 (low voltage power supply: FIG. 2) drawn into the inverter as LV +.
  • the 5 V power supply (HV side) 22 is connected to the inverter output circuit 3 and to the controller 9 and the state detection / determination circuit 17.
  • the 12V power supply 19 and the 5V power supply (LV side) 23 are connected to the state detection determination circuit 17.
  • the detection switching signal output unit of the controller 9, the failure diagnosis unit, the interlock loop 16, and the state detection / determination circuit 17 constitute an interlock device for high voltage equipment of the present invention.
  • the interlock device for high voltage equipment of the present invention is provided in the electric compressor (high voltage equipment), the range shown on the HV side in the figure means the high voltage side and the range shown on the LV side means the low voltage side.
  • FIG. 2 shows an embodiment of the electric circuit of the state detection / determination circuit 17 of FIG.
  • the state detection / determination circuit 17 of the embodiment includes a circuit formed by connecting voltage dividing resistors 28 and 29 and a switch 31 as a voltage level switching element in series, a voltage dividing circuit 32 including a voltage dividing resistor 42 and a diode 41, It comprises a window comparator 36 consisting of two comparators 33 and 34, optical couplers 37 and 38, a driver 39 and the like.
  • the voltage dividing circuit 32 is connected between the 12 V power supply 19 and LVGND, and the interlock loop 16 is connected to a connection point (E) of the voltage dividing resistor 28 and the voltage dividing resistor 29 of the voltage dividing circuit 32.
  • a connection point (D) of the voltage dividing resistor 42 is a connection point (E) of the voltage dividing resistor 28 and the voltage dividing resistor 29 of the voltage dividing circuit 32.
  • the diode 41 is connected to the connection point between the voltage dividing resistor 29 and the switch 31, and the direction of the connection point is the forward direction.
  • the voltage dividing resistor 42 is connected between the connection point (D) and LVGND.
  • the connection point (E) of the voltage dividing circuit 32 is connected to the inverting input terminal of the comparator 33 and the noninverting input terminal of the comparator 34.
  • the voltage level of the non-inverted input terminal of the comparator 33 is 8 V as a threshold (F)
  • the voltage level of the inverted input terminal of the comparator 34 is 4 V as a threshold (G).
  • the output (H) of the comparator 33 and the output (I) of the comparator 34 are connected to the optical coupler 38, and the output 44 of the optical coupler 38 is in series with the resistor 46 of the 5V power supply 22 (HV side) and HVGND Connected between.
  • the connection point (J) of the output 44 of the optical coupler 38 and the resistor 46 is connected to the input port 49 of the controller 9.
  • the output port 51 of the controller 9 is connected to the input (A) of the optical coupler 37, and the output 47 of the optical coupler 37 is connected in series with the resistor 48 between the 5V power supply (LV side) 23 and LVGND.
  • connection point (B) of the output 47 of the optical coupler 37 and the resistor 48 is connected to the driver 39, and the switch 31 is opened and closed by the driver 39.
  • the voltage dividing circuit 32 of FIG. 2 constitutes a voltage level generation unit of the present invention
  • the window comparator 36 constitutes a voltage level judgment unit of the present application.
  • the controller 9 constitutes a failure diagnosis unit and a detection switching signal output unit of the present invention, and a failure diagnosis is performed based on a combination of signals inputted from the input port 49 with respect to the detection switching signal outputted from the output port 51 Will do.
  • the controller 9 alternately outputs the “L” level signal and the “H” level signal from the output port 51 at a predetermined cycle.
  • the voltage level of the connection point (E) is also 1V.
  • the output (H) of the comparator 33 becomes “H” level and the output (I) of the comparator 34 becomes “L” level, so the input of the optical coupler 38 becomes “L Level.
  • the output 44 is turned on when the input of the optical coupler 38 becomes “L” level
  • the voltage at the connection point (J) becomes “L” level and the signal of the input port 49 of the controller 9 also becomes “L” level .
  • the signal output from the output port 51 becomes “H” level
  • the voltage of the input (A) of the optical coupler 37 becomes “L” level and the output 47 of the optical coupler 37 turns on.
  • Voltage of the driver 39 becomes “L” level, the driver 39 stops the output, and the switch 31 is turned off (opened).
  • the switch 31 is turned off, the voltage level of the connection point (D) is 6 V, and the voltage level of the connection point (E) is also 6 V (in order to divide 12 V by the voltage dividing resistors 28 and 42).
  • the output (H) of the comparator 33 becomes “H” level, and the output (I) of the comparator 34 also becomes “H” level. Level.
  • the output 44 of the optical coupler 38 is turned off, so that the voltage at the connection point (J) becomes “H” level, and the signal at the input port 49 of the controller 9 also becomes “H” level.
  • connection point (E) When the interlock loop 16 is shorted to ground, the connection point (E) is grounded (LV ⁇ ) regardless of whether the signal output from the output port 51 of the controller 9 is at “L” level or “H” level. Voltage level of 0V.
  • the output (H) of the comparator 33 becomes “H” level and the output (I) of the comparator 34 becomes “L” level, so the input of the optical coupler 38 becomes “L Level.
  • the output 44 of the optical coupler 38 is turned on, so the voltage at the connection point (J) becomes “L” level, and the signal at the input port 49 of the controller 9 also becomes “L” level.
  • the controller 9 when the controller 9 outputs the signal of "L” level from the output port 51 as described above, the signal of the input port 49 becomes “L” level, and the signal of the input port 49 is also output when the signal of "H” level is outputted. Diagnoses a fault condition (in this case, a short circuit fault of the interlock loop 16). (5) Other failures (eg, output short circuit failure of the optical coupler 37) Next, for example, a case where a fault in which the output 47 of the optical coupler 37 is shorted occurs will be described. When the output 47 of the optical coupler 37 is short-circuited and the switch 31 remains OFF, when the interlock loop 16 is in the connection state, is the signal output from the output port 51 of the controller 9 “L” level?
  • the voltage level of the connection point (E) is 6 V regardless of whether it is at the “H” level.
  • the output (H) of the comparator 33 becomes “H” level
  • the output (I) of the comparator 34 becomes “H” level
  • the input of the optical coupler 38 becomes “H”. Level.
  • the output 44 of the optical coupler 38 is turned off, so that the voltage at the connection point (J) becomes “H” level, and the signal at the input port 49 of the controller 9 also becomes “H” level.
  • the controller 9 when the controller 9 outputs the signal at the “L” level from the output port 51 as described above, the signal at the input port 49 becomes the “H” level, and the signal at the input port 49 also when the signal at the “H” level is output. Becomes a "H” level, it diagnoses a fault condition (in this case, a fault in which the output 47 of the optical coupler 37 is shorted).
  • the interlock device for high voltage equipment of the present invention is juxtaposed to the HV connector 7 for connecting the electric compressor (high voltage equipment) mounted on the vehicle to the HV battery 8 (high voltage power supply).
  • Interlock loop 16 a voltage level generator generating different voltage levels according to the state of interlock loop 16, and a determination result (L / H signal) according to the voltage level generated by the voltage level generator.
  • the controller 9 fault diagnosis unit
  • the controller 9 that diagnoses the state of the interlock loop 16 based on the output of the voltage level determination unit, and a detection switching signal output unit that outputs an L / H signal;
  • the voltage level generation unit generates different voltage levels according to the state of the interlock loop 16 and the output of the detection switching signal output unit, and also performs failure diagnosis.
  • the controller 9 Since the state of the interlock loop 16 is diagnosed from the combination of the output of the voltage level determination unit to the output of the detection switching signal output unit, the controller 9 connects the HV connector, does not connect, and interlock It becomes possible to perform failure diagnosis of the interlock device itself including failure of the loop 16. As a result, even in the event of failure of the interlock device for high voltage equipment itself including failure of the interlock loop 16, the disconnection of the HV connector 7 is properly diagnosed as a non-safe state (connector disconnection, failure, etc.) It is possible to make a false diagnosis such as being in a connected state).
  • the voltage level generating unit is configured of a voltage dividing circuit 32 having a plurality of voltage dividing resistors 28, 29 and 42 connected to a 12 V power supply 19 (low voltage power supply), a diode 41 and a switch 31. Since the interlock loop 16 is connected to the voltage dividing circuit 32, the voltage level generated by the voltage level generation unit due to connection or disconnection of the interlock loop 16, power short circuit or ground short circuit (connection point (E Voltage levels), and it becomes possible to diagnose them accurately. In particular, by providing the interlock device for high voltage equipment in the electric compressor (high voltage equipment) as in the embodiment, failure diagnosis is performed on the electric compressor side without connecting the interlock loop 16 to the controller of the vehicle.
  • the high voltage equipment interlock device is applied to the electric compressor as the high voltage equipment mounted on the vehicle, but the present invention is effective for various high voltage equipment mounted on the vehicle without being limited thereto.
  • the failure of the optical coupler 37 is taken as the failure of the state detection / determination circuit 17.
  • failure diagnosis of other elements is also possible.
  • the voltage level determination unit is configured by the window comparator 36 shown in the embodiment, and the logical product (AND) of the two outputs of the window comparator 36 is taken as the determination result, the specific circuit configuration is not limited thereto.
  • the two outputs of the window comparator 36 may be individually input to the controller 9 to make a diagnosis.
  • one input port of the controller 9 and one optical coupler are used to accurately detect disconnection of the HV connector 7 as a non-safe state (connector disconnection, failure, etc.).
  • the voltage of the 12 V power supply 19 (low voltage power supply) connecting the voltage level generation unit and the voltage level determination unit is not necessarily limited to 12 V, and within the LV + power supply input voltage range defined by the inverter If this is the case, the interlock device is permitted to function properly.
  • inverter for electric compressor 2 motor 3 inverter output circuit 7 HV connector 8 HV battery (high voltage power supply) 9 Controller (fault diagnosis unit, detection switching signal output unit) 16 interlock loop 17 state detection determination circuit (voltage level generation unit, voltage level determination unit) 19 12V power supply (low voltage power supply) 28, 29, 42 voltage dividing resistors (voltage level generator) 31 switch (voltage level generator) 33, 34 Comparator 36 Window comparator (voltage level judgment unit) 37, 38 Optical coupler 41 Diode (voltage level generator) 49 input port (fault diagnosis unit) 51 output port (detection switching signal output unit)

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

L'invention concerne un appareil de verrouillage pour un dispositif à haute tension, l'appareil étant capable de détecter avec précision la séparation d'un connecteur en tant que condition dangereuse (déconnexion de connecteur, défaillance ou similaire) même lorsque l'appareil de verrouillage lui-même, comprenant une boucle de verrouillage, est défaillant. La présente invention comporte : une boucle de verrouillage (16) qui est reliée à un connecteur HT (7) destiné à connecter un compresseur électrique à une batterie HT (8); une unité de génération de niveau de tension qui génère un niveau de tension qui diffère en fonction de l'état de la boucle de verrouillage; une unité de détermination de niveau de tension qui délivre un résultat de détermination (signal L/H) en fonction du niveau de tension généré par l'unité de génération de niveau de tension; et un contrôleur (9) qui délivre le signal L/H et diagnostique l'état de la boucle de verrouillage sur la base de la sortie de l'unité de détermination de niveau de tension.
PCT/JP2018/030591 2017-09-14 2018-08-13 Appareil de verrouillage pour dispositif à haute tension WO2019054128A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201880059656.7A CN111094074B (zh) 2017-09-14 2018-08-13 高电压设备用联锁装置
DE112018005169.2T DE112018005169T5 (de) 2017-09-14 2018-08-13 Verriegelungseinrichtung für hochspannungsgeräte

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017176561A JP6889642B2 (ja) 2017-09-14 2017-09-14 高電圧機器用インターロック装置
JP2017-176561 2017-09-14

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WO2019054128A1 true WO2019054128A1 (fr) 2019-03-21

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PCT/JP2018/030591 WO2019054128A1 (fr) 2017-09-14 2018-08-13 Appareil de verrouillage pour dispositif à haute tension

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JP (1) JP6889642B2 (fr)
CN (1) CN111094074B (fr)
DE (1) DE112018005169T5 (fr)
WO (1) WO2019054128A1 (fr)

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WO2021232883A1 (fr) * 2020-05-22 2021-11-25 宁德时代新能源科技股份有限公司 Circuit de verrouillage à haute tension et son procédé de détection
US11784482B2 (en) * 2020-10-20 2023-10-10 Apple Inc. Electrical connection monitoring using cable shielding

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JP7177307B2 (ja) * 2019-03-06 2022-11-24 サンデン株式会社 高電圧機器用インターロック装置
JP7326792B2 (ja) 2019-03-19 2023-08-16 株式会社デンソー 回転電機、及び回転子の製造方法
DE102019128441A1 (de) 2019-10-22 2021-04-22 Hanon Systems Anordnung und Verfahren zur Überwachung einer elektrischen Sicherheitsverriegelung
JP7338542B2 (ja) * 2020-04-17 2023-09-05 株式会社豊田自動織機 電動圧縮機
CN113866667A (zh) * 2020-06-12 2021-12-31 宁德时代新能源科技股份有限公司 高压互锁电路及其检测方法
CN113866666B (zh) * 2020-06-12 2023-11-21 宁德时代新能源科技股份有限公司 高压互锁电路及其故障检测方法
DE102022202315A1 (de) 2022-03-08 2023-09-14 Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Würzburg Elektronikeinheit für eine Hochvolt-Komponente
CN116068382B (zh) * 2023-03-07 2023-07-21 深圳艾为电气技术有限公司 一种压缩机端口状态检测系统及检测方法

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US7977814B2 (en) * 2009-01-26 2011-07-12 Ford Global Technologies, Llc Centralized HV interlock system
DE102012105631B4 (de) 2012-06-27 2019-01-03 Hanon Systems Hochvolt(HV)-Sicherheitsverriegelung für HV-Komponenten in einem Fahrzeug
DE102013219141A1 (de) * 2013-09-24 2015-03-26 Robert Bosch Gmbh Interlock-Schaltkreis zur Absicherung eines elektrischen Bordnetzes
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JP2009077627A (ja) * 2007-09-18 2009-04-09 Ford Global Technologies Llc 高電圧機器用インターロック装置
JP2013098056A (ja) * 2011-11-01 2013-05-20 Furukawa Electric Co Ltd:The 電気コネクタ

Cited By (3)

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Publication number Priority date Publication date Assignee Title
WO2021232883A1 (fr) * 2020-05-22 2021-11-25 宁德时代新能源科技股份有限公司 Circuit de verrouillage à haute tension et son procédé de détection
US11413965B2 (en) 2020-05-22 2022-08-16 Contemporary Amperex Technology Co., Limited High voltage interlock circuit and detection method thereof
US11784482B2 (en) * 2020-10-20 2023-10-10 Apple Inc. Electrical connection monitoring using cable shielding

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CN111094074B (zh) 2023-04-14
DE112018005169T5 (de) 2020-06-10
JP2019051790A (ja) 2019-04-04
CN111094074A (zh) 2020-05-01
JP6889642B2 (ja) 2021-06-18

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