WO2022223240A1 - Schutzvorrichtung für spannungsbegrenzungselemente einer niedervoltleitung, die aus einem fahrzeug-hochvoltbereich herausgeführt ist - Google Patents
Schutzvorrichtung für spannungsbegrenzungselemente einer niedervoltleitung, die aus einem fahrzeug-hochvoltbereich herausgeführt ist Download PDFInfo
- Publication number
- WO2022223240A1 WO2022223240A1 PCT/EP2022/058093 EP2022058093W WO2022223240A1 WO 2022223240 A1 WO2022223240 A1 WO 2022223240A1 EP 2022058093 W EP2022058093 W EP 2022058093W WO 2022223240 A1 WO2022223240 A1 WO 2022223240A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- voltage
- limiting element
- current
- low
- line
- Prior art date
Links
- 230000004224 protection Effects 0.000 title abstract description 8
- 230000001681 protective effect Effects 0.000 claims description 2
- 238000009413 insulation Methods 0.000 description 17
- 230000015556 catabolic process Effects 0.000 description 4
- 230000008054 signal transmission Effects 0.000 description 4
- 238000002955 isolation Methods 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 238000009795 derivation Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000009979 protective mechanism Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- 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
- B60L3/04—Cutting off the power supply under fault conditions
-
- 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
- B60L3/0069—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to the isolation, e.g. ground fault or leak current
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/041—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using a short-circuiting device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/90—Vehicles comprising electric prime movers
- B60Y2200/91—Electric vehicles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/042—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage comprising means to limit the absorbed power or indicate damaged over-voltage protection device
Definitions
- Protection device for voltage-limiting elements of a low-voltage line that leads out of a vehicle high-voltage area
- vehicles that have a high-voltage vehicle electrical system i.e., a high-voltage vehicle electrical system - HV vehicle electrical system
- HV high-voltage
- low-voltage cables lead out of the housing, for example for signal purposes. If an insulation fault occurs within the high-voltage area, which leads to a connection between a high-voltage potential of the high-voltage area and one of the low-voltage lines, there is a risk of dangerous contact voltage, especially since the insulation of the low-voltage lines (outside the high-voltage area) is not designed for the voltages of the HV vehicle electrical system .
- a vehicle high-voltage device which has a high-voltage area.
- area in this context has physical meaning and can be understood as a limited volume or area.
- Components such as switches, in particular isolating switches or changeover switches, voltage converters, rectifiers or power converters as well as filters or fuses or accumulators can be provided which have a high-voltage operating voltage or high-voltage nominal voltage.
- Low-voltage components that are functionally assigned to these components can also be provided there, such as control circuits, sensors, communication devices and the like. These elements can be present individually, in multiples, or in any combination.
- the low-voltage components are also in the high-voltage area.
- the prefix "high-voltage” (HV) means a voltage range of more than 60 V, at least 200 V, 400 V or 800 V.
- the prefix “low-voltage” (NV) means a voltage range of less than 60 V, at most 40 V, 20 V, 14 V, 12 V or 5 V.
- There is at least one low-voltage line for example as a low-voltage supply line, communication line, control line or sensor line, in order to functionally connect components that are within the high-voltage range from outside (to control, communicate , status detection, low-voltage supply, ... ).
- the high-voltage area is arranged in a housing.
- the housing is preferably closed.
- the interior of the housing preferably forms the outer limits of this high-voltage range.
- other HV components that have not been mentioned so far may be present outside the housing, which are electrically connected to the interior of the housing.
- the at least one low-voltage line emerges from the housing into the exterior of the housing.
- the housing has a passage, for example in the form of an opening.
- the at least one low-voltage line passes through the opening.
- a continuous line itself passes through the passage or is extended through the passage by a connected conductor section. This is both intended to be encompassed by the definition "passes through the passage".
- the passage is provided in a housing wall of the housing that delimits it on the outside.
- the housing wall thus forms a limit for the physical extent of the high-voltage area.
- the high-voltage area is delimited by the housing wall and preferably does not extend beyond the housing wall. Preferably none extend through the passage High-voltage lines, but only low-voltage lines (or at least one of them). However, as mentioned, in the event of an insulation fault within the housing (the high-voltage area), these can carry a dangerous potential from the high-voltage area to a (non-high-voltage area, low-voltage area) beyond the housing wall.
- At least one voltage limiting element is provided to protect against high contact voltages that can occur if the low-voltage line within the high-voltage range receives a high-voltage potential (of a component or high-voltage line) of the high-voltage range due to an insulation fault.
- the high-voltage potential relates approximately to a ground potential.
- the at least one voltage limiting element conducts when a voltage above a voltage limit (breakdown voltage) is present at the voltage limiting element and otherwise not. When the voltage limit is reached, the voltage limiting element begins to conduct.
- the protection device is provided by the current-limiting element connected in series with the voltage-limiting elements (or the voltage-limiting element), whereby the current-limiting element protects the voltage-limiting element from overcurrent.
- a high-voltage potential from the HV range can be transferred to the at least one low-voltage line and the voltage-limiting element begins to conduct due to the voltage limit being exceeded.
- the high-voltage potential of the low-voltage line is connected to a powerful high-voltage source, such as a high-voltage vehicle electrical system, a high-voltage accumulator or another high-voltage source (such as a charging station), then the voltage-limiting element carries a high current when the voltage limit is reached.
- a current-limiting element is used. This current-limiting element is connected to the voltage-limiting element in such a way that it reduces or limits the magnitude or at least the rate of increase of the current intensity (when the voltage-limiting element begins to conduct). Limiting the amount of current will do that
- Voltage limiting element protected against thermal overload This is also the case with current slew rate limitation, where limiting the slew rate creates a period of time when the voltage limiting element is not overloaded and during which other protection mechanisms can kick in. If, when limiting the slew rate, a current level that is critical for the voltage limiting element is only reached at the end of the time period, other protective mechanisms (e.g. disconnecting a voltage source or discharging) can take effect before this end and the voltage limiting element is protected.
- the at least one low-voltage line is connected to a ground potential (or another leakage potential) or a connection for this via a voltage limiting element and a current limiting element connected in series with it.
- the current-limiting element limits the current (or its slew rate) flowing through the voltage-limiting element when it conducts or begins to conduct by a voltage above the voltage limit (breakdown voltage) of the current-limiting element. This protects the function of the voltage limiting element, at least until further safety measures such as disconnection or discharging take effect.
- low-voltage lines are provided, which emerge through the passage from the housing or the high-voltage area.
- Each of the low-voltage lines (or at least a plurality of them) is connected to a common current-limiting element via a voltage-limiting element.
- First ends of the multiple voltage limiting elements are connected to the individual low-voltage lines connected.
- Opposite second ends of the voltage-limiting elements are connected to one and the same common current-limiting element, which in turn connects the voltage-limiting elements to ground potential (generally: leakage potential).
- the low-voltage lines are connected via individual voltage-limiting elements to a common connection point, which in turn is connected to ground potential (generally: leakage potential) via a common current-limiting element.
- one current-limiting element can be used for a number of voltage-limiting elements, which means that costs and installation space can be saved.
- a further embodiment provides that the same common voltage limiting element and the same common current limiting element are used for a plurality of low-voltage lines.
- the connecting elements can be diodes, which prevent a high-voltage potential of a low-voltage line from being transferred to another low-voltage line by means of the connecting elements. Therefore, if there are several low-voltage lines, these are each connected via a connecting element, such as a diode, to a series circuit that leads to the ground potential (generally: leakage potential) or the connection for this.
- the series circuit has a (common) voltage limiting element and a (common current limiting element) connected in series therewith.
- the connecting elements can lead to the (common) voltage-limiting element, which in turn is connected to ground potential via the current-limiting element, or the connecting elements can lead to the (common) current-limiting element, which in turn is connected to ground potential via the voltage-limiting element. If a resistor or a line is selected as the connecting element, then the potentials of a low-voltage line are transferred to others, but the voltage limiting element in the Insulation fault triggered. In this constellation, this is also protected, as in other embodiments, by the current-limiting element, which limits the current strength or its increase (for the voltage-limiting element).
- the components used for securing include: the at least one voltage limiting element and/or the at least one current limiting element (preferably also the relevant connection points with the at least one low-voltage line and/or also the connection elements, if present).
- These components can be provided on the inside or outside or in a passage of the housing wall, in particular at the point on the housing wall where the passage is located.
- These components can be provided in a module, for example in a module housing, or can be provided as an insulator overmolded module.
- the module can be arranged on the passage (on the inside or outside of the housing wall) or in the passage. In particular, the module can directly physically adjoin a cable bushing through which the at least one low-voltage line is routed.
- the cable bushing extends through the passage or through a passage opening that implements the passage. Corresponding variants are shown below.
- the at least one voltage limiting element and/or the current limiting element can be provided in a module. This is preferably arranged on an inside of the housing wall at the passage. Furthermore, a cable bushing can be provided in the passage, through which the at least one low-voltage line is passed, and the at least one voltage limiting element and the current limiting element are provided in the cable bushing. Furthermore, the at least one low-voltage line can lead to a plug-in connection device, which is arranged in the passage and/or on an outside of the housing wall at the passage.
- the at least one voltage limiting element and/or the Current-limiting elements can be integrated into the plug-in connection device or can be arranged on the plug-in connection device, preferably directly or physically adjacent.
- the voltage limiting element and/or the current limiting element can be arranged in a housing of the plug-in connection device or directly on a housing of the plug-in connection device (“plug-in connection housing”). In the latter case, preferably as a separate housed or overmoulded module, which in particular is directly adjacent to the plug connector housing.
- the plug-in connection device is, for example, a signal socket or a signal plug with a plurality of contacts, each of which has its own low-voltage line leading to it or being connected to it.
- This plug connection device preferably leads through the opening in the housing wall from the interior (high-voltage area) into the environment of the housing in which the high-voltage area is located.
- the plug-in connection device is connected to the low-voltage lines inside the housing in which the high-voltage area is located, or on the inside of the housing wall and can be electrically contacted from outside this housing by plugging in a complementary (low-voltage) plug-in device, which is used in particular to continue of the low-voltage lines on the outside of this housing.
- the contacts of the plug-in device, which are connected to the low-voltage lines can be located in the plug-in connection housing, with the voltage and current-limiting elements preferably also being located; preferably also the connecting elements, if present. These elements are electrically isolated from the contacts by an isolation device.
- the isolation device is preferably also located in the outlet housing.
- the current-limiting element can be in the form of a resistor or an inductor or can have a resistor and/or an inductor. That Current limiting element can be provided as a series circuit of a resistor and an inductor. If the current-limiting element includes a resistor, this serves to limit the current.
- the resistor is designed in such a way that the maximum peak current of the voltage-limiting element is not exceeded at a maximum voltage or nominal voltage of the high-voltage range or components thereof.
- the voltage limiting element can be designed with a maximum peak current of at least 500 A or at least 5000 A or 8000 A.
- the resistance can be 0.1 - 10 ohms (depending on the voltage in the high-voltage range).
- the inductance may have a value of 1pH or more, for example 5pH or 10pH or 20pH. This limits the rate of current rise in the event of a sudden insulation fault or sudden onset of touch current, so that the current remains below a value for an initial time window that could be damaging to the voltage-limiting element. In this time window, further measures such as shutdown or discharge can be implemented.
- the at least one low-voltage line can be a low-voltage supply line (for 12 V, 14 V, 24 V, 5 V), can be a communication line (for a CAN bus, for a LAN connection or for proprietary signal transmission), for example for Transmission of signals that characterize an operating state (error signal, idle signal, activation signal,... ) can be a control line (to control a component within the high-voltage range) or can be a sensor line, such as a temperature, current, voltage -, magnetic field, speed or torque sensor, or one
- the voltage limiting element can be used as a varistor, gas arrester, spark gap, protection diode, thyristor circuit, TVS thyristor, DIAC,
- Zener diode, suppressor diode, four-layer diode or combination thereof can be used as a single element be provided or as a bundle of parallel, identical individual elements which can be designed as mentioned above.
- the voltage limiting element is set up with a voltage threshold above which it conducts.
- This threshold preferably corresponds to the breakdown voltage. This can be at least 40 V, 60 V, 400 V, 450 V or more than 600 V. In particular, in one embodiment the breakdown voltage is 30-35 volts.
- the threshold is greater than the maximum of all maximum voltages of all low-voltage lines that pass through (or continue through) the culvert.
- the high-voltage range is preferably designed for nominal voltages of at least 400 V or 600 V or 800 V.
- the at least one low-voltage line can be designed for a maximum voltage of no more than 40 V, 20 V, 14 V or 5 V in error-free operation. This corresponds to the maximum levels with error-free signal transmission or error-free (low-voltage) power supply.
- the current limiting element is designed to limit a current flowing through the current limiting element (or the voltage limiting element) to a maximum current value.
- the maximum peak current rating of the voltage limiting element is greater than the current maximum value of the current limiting element.
- the current-limiting element is designed to limit the current or the current rise in such a way that the operating range of the voltage-limiting element is not exceeded.
- FIG. 1 serves to explain the device described here.
- FIG. 1 shows a vehicle high-voltage device with a high-voltage area HV and a housing G in which the high-voltage area HV is arranged.
- the housing G physically encloses the high-voltage area HV, which protects it from external access.
- the low-voltage lines NL are therefore used for low-voltage signal transmission between components within the high-voltage range HV and a component outside of the high-voltage range HV shown, i.e. components in a low-voltage range NV.
- the low-voltage lines NL are used for the low-voltage supply of components within the high-voltage range.
- Such components within the high-voltage range HV are low-voltage components (sensors, control circuits, communication devices,...) or generally components that receive and/or emit a low-voltage signal or level (communication signal or low-voltage supply voltage). These can be components with a low voltage portion or can be low voltage components.
- the low-voltage lines NL are led out of the high-voltage area HV (or the housing G) through a passage D, i.e. into an area outside the high-voltage area HV or the housing G.
- the housing G and in particular a housing wall GW separates the high-voltage area HV from the area outside the high-voltage area HV or the housing G.
- the passage D is provided in a housing wall GW of the housing G that delimits the outside.
- the passage D is designed as a through opening.
- the low-voltage lines are connected to a ground potential via at least one voltage limiting element V and a current limiting element SG connected in series with it M (or another leakage potential) or connected with a connection for this.
- the serial arrangement ensures that the current is limited by the voltage limiting element V, which is used for overvoltage protection, with the current limiting element SG limiting the rate of increase and/or the current amplitude itself.
- this is implemented by the four voltage limiting elements V (varistors), which connect each of the four low-voltage lines NL individually via the (common) current limiting element SG.
- V voltage limiting elements
- An inductance is shown as a current-limiting element. This limits the current, particularly at the beginning of a corresponding insulation fault, and thus limits the rate of current rise.
- the current rise current rise rate, current rise speed
- the current is limited at least for a time window at the beginning of the occurrence of the insulation fault. This time window can be used to trigger further security mechanisms.
- a limitation of the current is therefore also to be understood as the limitation of a current at the beginning of the occurrence of an insulation fault.
- a resistor or a series connection of an inductance and a resistor can also be used.
- Another possibility is to use several connecting elements such as diodes instead of the several voltage limiting elements V shown, with a series connection of a current limiting element SG and a voltage limiting element V being used instead of the current limiting element SG shown.
- voltage limiting elements V can be saved, with the connecting elements being less expensive and costs being able to be saved overall.
- This can also be implemented with two poles by connecting a first group of diodes to the low-voltage lines NL, and connecting this first group of diodes to ground potential via a common current-limiting element SG and a voltage-limiting element V, with the conducting direction of all diodes in the first group being connected to ground potential points. This creates the derivation for one of two polarities.
- a second group of diodes is connected to the low-voltage lines NL, and this second group of diodes is connected to ground potential via a further common current-limiting element SG and a further voltage-limiting element V, with the conducting direction of all diodes in the second group pointing away from ground potential. This creates the derivation for one of two polarities.
- the common current-limiting element and the voltage-limiting element are connected in series. This also applies to the additional common current-limiting element SG and the additional voltage-limiting element V.
- the multiple low-voltage lines NL extend through the passage D.
- the passage separates the high-voltage area from an area outside the housing G, in particular from a low-voltage area NV.
- Higher insulation regulations apply in the high-voltage range HV than in the low-voltage range NV.
- Components in the low-voltage range NV should therefore not be subjected to the potentials or voltages of the high-voltage range, since the corresponding insulation designs only apply within the high-voltage range HV (especially with regard to max. operating voltage, permissible insulation voltage, etc.).
- the voltage limiting elements V and the current limiting element SG are preferably also provided there.
- the voltage limiting element, the current limiting element, the further voltage limiting element and the current limiting element as well as the connecting elements are provided there. These can be in a module or be accommodated module housing.
- the voltage-limiting and current-limiting elements are preferably isolated according to an isolation design which also applies to the HV range or which requires stricter measures than this. This serves to protect the elements mentioned in the event of an insulation fault.
- the module or module housing is preferably provided directly on or in a housing of a plug connection device, which carries the low-voltage lines NL.
- the end points of the lines NL shown on the right can be contacts of an LV plug-in connection device, such as a signal plug-in device (signal socket, signal connection), which is arranged on the housing G of the HV area (in particular on the passage D) and the one
- the plug connection device is preferably insulated in accordance with the operating voltages to be expected or the maximum voltage or insulation design voltage of the high-voltage range HV.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202280029691.0A CN117203079A (zh) | 2021-04-19 | 2022-03-28 | 用于从车辆高压区域引导出来的低压线路的限压元件的保护设备 |
KR1020237039456A KR20230172553A (ko) | 2021-04-19 | 2022-03-28 | 차량 고전압 영역 밖으로 연장되는 저전압 라인의 전압 제한 요소용 보호 디바이스 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102021203889.1 | 2021-04-19 | ||
DE102021203889.1A DE102021203889A1 (de) | 2021-04-19 | 2021-04-19 | Schutzvorrichtung für Spannungsbegrenzungselemente einer Niedervoltleitung, die aus einem Fahrzeug-Hochvoltbereich herausgeführt ist |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022223240A1 true WO2022223240A1 (de) | 2022-10-27 |
Family
ID=81386895
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2022/058093 WO2022223240A1 (de) | 2021-04-19 | 2022-03-28 | Schutzvorrichtung für spannungsbegrenzungselemente einer niedervoltleitung, die aus einem fahrzeug-hochvoltbereich herausgeführt ist |
Country Status (4)
Country | Link |
---|---|
KR (1) | KR20230172553A (de) |
CN (1) | CN117203079A (de) |
DE (1) | DE102021203889A1 (de) |
WO (1) | WO2022223240A1 (de) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009046471A1 (de) * | 2009-11-06 | 2011-05-12 | Robert Bosch Gmbh | Leistungselektronik für ein Kraftfahrzeug |
DE102016123209A1 (de) * | 2016-12-01 | 2018-06-07 | Lisa Dräxlmaier GmbH | Entladevorrichtung, elektrischer zwischenkreis und entladeverfahren |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10247308B3 (de) | 2002-10-10 | 2004-05-27 | Siemens Ag | Anordnung und Verfahren zum Schutz eines Zweispannungsnetzes bei Spannungsüberschläge zwischen beiden Spannungsniveaus |
DE102014002819A1 (de) | 2014-02-26 | 2015-08-27 | Man Truck & Bus Ag | Elektrische Energiespeichervorrichtung für Kraftfahrzeuge |
DE102015108372B4 (de) | 2015-05-27 | 2022-03-31 | Lisa Dräxlmaier GmbH | Elektrische versorgungseinrichtung und damit ausgestattetes bordnetz eines fahrzeugs |
-
2021
- 2021-04-19 DE DE102021203889.1A patent/DE102021203889A1/de active Pending
-
2022
- 2022-03-28 WO PCT/EP2022/058093 patent/WO2022223240A1/de active Application Filing
- 2022-03-28 CN CN202280029691.0A patent/CN117203079A/zh active Pending
- 2022-03-28 KR KR1020237039456A patent/KR20230172553A/ko unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009046471A1 (de) * | 2009-11-06 | 2011-05-12 | Robert Bosch Gmbh | Leistungselektronik für ein Kraftfahrzeug |
DE102016123209A1 (de) * | 2016-12-01 | 2018-06-07 | Lisa Dräxlmaier GmbH | Entladevorrichtung, elektrischer zwischenkreis und entladeverfahren |
Also Published As
Publication number | Publication date |
---|---|
DE102021203889A1 (de) | 2022-10-20 |
CN117203079A (zh) | 2023-12-08 |
KR20230172553A (ko) | 2023-12-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2015014551A1 (de) | Überspannungsschutz für ein mehrspannungsbordnetz | |
WO2014057017A1 (de) | Leitungsnetz, insbesondere gleichspannungs-bordnetz für ein kraftfahrzeug sowie verfahren zur überwachung eines leitungsnetzes auf das entstehen eines lichtbogens | |
EP1114752B1 (de) | Vorrichtung zur Überwachung einer Batterieleitung | |
WO2022258238A1 (de) | Dc-fahrzeugladeschaltung mit transistor und inversdiode zur sperrung von fehlerstrom durch ladestationsseitige varistoren | |
DE19907095C1 (de) | Schaltung zur kapazitiven Ankopplung einer Datenübertagungseinrichtung an ein Energieübertragungsnetz, und Koppeleinheit mit Ankoppelschaltung | |
DE102013018404A1 (de) | Sicherheitssystem für ein Fahrzeug mit einem Hochvoltbordnetz | |
WO2022223240A1 (de) | Schutzvorrichtung für spannungsbegrenzungselemente einer niedervoltleitung, die aus einem fahrzeug-hochvoltbereich herausgeführt ist | |
DE102019135206B4 (de) | Überspannungsschutzvorrichtung sowie Netzteil | |
DE102020206253B3 (de) | Überspannungsschutz | |
DE102011053904A1 (de) | Schaltungsanordnung zum Schutz von Transceivern von Schnittstellen für drahtgebundene Kommunikation | |
DE102021206270A1 (de) | Fahrzeugbordnetz mit Hochvoltabschnitt und sich hieraus erstreckenden, mehreren Niedervoltabschnitten, die über eine Sicherheitseinrichtung miteinander verbunden sind | |
WO2022152518A1 (de) | Fahrzeugbordnetz mit einem hochvoltzweig, einem niedervoltzweig und einer niedervoltseitige isolationsfehlererkennung | |
DE102019124213A1 (de) | Galvanisch verbundenes AC-Ladegerät mit Überwachungs- und Diagnosesystem | |
DE3722286C2 (de) | ||
EP2355312A2 (de) | Entstöranordnung eines Stellglieds mit einem Elektromotor | |
DE102015220820A1 (de) | Spannungswandler | |
DE102018129679A1 (de) | Überspannungsschutzvorrichtung mit thermischer Überlastschutzvorrichtung | |
DE102020206250B3 (de) | Überspannungsschutz | |
DE202018006385U1 (de) | Überspannungsschutzvorrichtung mit thermischer Überlastschutzvorrichtung | |
DE102005006100A1 (de) | Sicherheitsschaltung und Verfahren zur Absicherung einer elektronischen Schaltungsanordnung vor Beschädigung bei Verpolung einer angeschlossenen Energieversorgungseinheit | |
DE102012106505A1 (de) | Freischalteinrichtung für einen eine Gleichspannung erzeugenden Photovoltaik-Strang | |
DE102022002596A1 (de) | Fahrzeug mit einem Hochvoltbordnetz und Verfahren zum Betrieb des Hochvoltbordnetzes | |
EP3813217A1 (de) | Eigensichere energieübertragungseinheit zur versorgung eines elektrogeräts mit erhöhter leistung | |
WO2024068258A1 (de) | Dioden-halbbrücken zur abführung von hv-potential einer lv-leitung an überspannungsbegrenzung | |
WO2022083868A1 (de) | Anordnung mit einer gleichstrom-übertragungsleitung |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 22718883 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 202280029691.0 Country of ref document: CN |
|
ENP | Entry into the national phase |
Ref document number: 20237039456 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020237039456 Country of ref document: KR |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 22718883 Country of ref document: EP Kind code of ref document: A1 |