CN109217025B - Locking system for a charging socket of a motor vehicle - Google Patents
Locking system for a charging socket of a motor vehicle Download PDFInfo
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- CN109217025B CN109217025B CN201810737286.XA CN201810737286A CN109217025B CN 109217025 B CN109217025 B CN 109217025B CN 201810737286 A CN201810737286 A CN 201810737286A CN 109217025 B CN109217025 B CN 109217025B
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- Prior art keywords
- motor vehicle
- locking
- locking system
- charging
- locking element
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0227—Applications
- H05B1/023—Industrial applications
- H05B1/0236—Industrial applications for vehicles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
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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
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
- B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
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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
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/30—Constructional details of charging stations
- B60L53/302—Cooling of charging equipment
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
- H01R13/6397—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap with means for preventing unauthorised use
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/26—Connectors or connections adapted for particular applications for vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention relates to a locking system for a charging socket of a motor vehicle, a charging socket with a locking system, a motor vehicle with a charging socket and a method for operating a motor vehicle, in particular to a locking system (1) for a charging socket (2) of a motor vehicle (3), comprising a movable locking element (4) for engaging in a recess (5) of a charging plug (6) for releasably locking the charging plug (6) in the charging socket (2); a drive device (7) for moving the locking element (4) between the locking position (I) and the release position (II); and a control device (8) for controlling the drive device (7). The locking system (1) has a heating device (9) for heating the locking element (4). The invention further relates to a charging socket (2), a motor vehicle (3) and a method for operating a motor vehicle (2).
Description
Technical Field
The invention relates to a locking system for a charging socket of a motor vehicle, in particular a plug-in hybrid or electric vehicle. The invention further relates to a charging socket having a locking system of this type and to a motor vehicle having such a charging socket. Finally, the invention relates to a method for operating a motor vehicle having a charging socket of this type.
Background
Motor vehicles with electric drives, such as hybrid vehicles or electric vehicles, for charging the energy storage of the motor vehicle, usually have a charging socket for receiving electrical energy from an external current source, such as a charging post. For the electrical connection of a motor vehicle to a current source, charging cables connected or connectable to the current source are known, with a charging plug for the electrical connection to the motor vehicle being insertable into a charging socket. In this way, the charging plug contacts of the charging plug may be in contact with the charging socket contacts of the charging socket in order to pass current.
The charging receptacle may be arranged at different locations at the motor vehicle, for example laterally in the rear region of the vehicle, behind a brand logo (sometimes called emblem) of the motor vehicle manufacturer, or in a radiator protective grille. In order to avoid unintentional separation of the charging plug and the charging socket during the charging process, many charging sockets have a locking system which fixes the charging plug to the charging socket in a form-fitting manner, for example during the charging process. For this purpose, the locking system has, for example, a locking bolt which can be moved in translation between a locking position and a release position by means of a drive. In the locked position, the locking pin engages, for example, in a recess of the charging plug, in order to hold the locking pin in the charging socket in a form-fitting manner.
A charging device with a charging bushing, a charging plug which can be coupled to the charging bushing, and a locking unit for locking the charging plug in the charging bushing is known from DE 102016009777 a 1. The charging device has a monitoring unit, by means of which the locked and unlocked states of the locking unit can be displayed.
Known charging sockets with locking systems have the following disadvantages: the locking pin can be firmly attached to the charging plug and to components of the locking system in the case of low ambient temperatures below freezing, and thus unlocking the charging bushing for releasing the charging plug is not possible or can only be achieved with delay. The reason for this is moisture, which condenses on the locking bolt and can even penetrate into the locking system. Such disadvantageous condensation is further promoted by the charging socket being arranged in the vicinity of the radiator of the hybrid vehicle. Such a secure attachment of the locking bolt is also not satisfactorily prevented by means of an additional seal which is formed around the locking bolt. The use of stronger actuators and transmission mechanisms with higher transmission ratios for moving the locking bolt likewise only partially overcomes this problem and is not an economically attractive and technically reliable solution to this problem due to the higher material costs and the greater installation space requirement.
Disclosure of Invention
The object of the present invention is therefore to provide a locking system for a charging socket of a vehicle, in particular of a plug-in hybrid vehicle or electric vehicle; charging sockets with this type of locking system; a motor vehicle with such a charging socket; and a method for operating a motor vehicle, which do not have or at least ameliorate the disadvantages of the prior art. The object of the invention is, in particular, to create a locking system for a charging socket of a motor vehicle; a charging socket with such a locking system; a motor vehicle with a charging receptacle; and a method for operating a motor vehicle, which ensures unlocking of the locking system and thus release of a charging plug arranged in the charging socket by simple means and at low cost.
The object is therefore achieved by a locking system having a charging socket for a motor vehicle, a motor vehicle having an energy store, and a method for operating a motor vehicle. Further features and details of the invention emerge from the description and the drawings. The features and details described in relation to the locking system according to the invention are also applicable here to the charging socket according to the invention, to the motor vehicle according to the invention and to the method according to the invention and vice versa, respectively, so that the disclosure in relation to the inventive aspects is always referred to alternately or always interchangeably.
According to a first aspect of the invention, this object is achieved by a locking system for a charging socket of a motor vehicle. The locking system has: a movable locking element for engaging into a recess of the charging plug for releasably locking the charging plug in the charging socket; a drive device for moving the locking element between the locking position and the release position; and a control device for controlling the drive device. According to the invention, the locking system has a heating device for heating the locking element.
A motor vehicle, such as a plug-in hybrid vehicle or an electric vehicle, which is designed for charging its energy store by means of an external current source, has a charging socket. The locking system according to the invention is designed for use in such a charging socket. In order to charge the energy store of the motor vehicle by means of an external current source, a charging plug of the external current source can be inserted into the charging socket. In the inserted position, the charging socket is electrically coupled to a current source via a charging plug and a charging cable.
Furthermore, the charging plug can be temporarily fixed in the inserted position by means of the locking element of the locking system according to the invention. For this purpose, the locking element can be moved between a locking position and a release position by means of a drive. This movement can be performed, for example, translationally or rotationally. Preferably, the locking element is designed as a locking bolt and can be moved in translation relative to the remaining locking system by means of a drive. Alternatively, the locking element can be configured to be bendable and to be rotationally movable.
The locking element is configured to engage in a corresponding charging plug section of the charging plug, for example a recess, an aperture, an undercut or the like, in the locked position and thereby hold or fix the charging plug in a form-fitting manner at the charging socket. Furthermore, the locking element is configured to release the charging plug section and thus the charging plug in the release position for removal from the charging socket. Preferably, the locking element is made of a material with particularly good thermal conductivity, for example a metal.
The drive device can be designed, for example, as an electric motor and can have a particularly single-stage transmission. Alternatively, the drive device may also have a pressure cylinder, which may be operated pneumatically or hydraulically.
The control device is configured to control the drive device. In this way, a command of the control device can be transmitted to the drive device for moving the locking element from the release position into the locking position and from the locking position into the release position. The locking system preferably has means for detecting the locking state or position of the locking element, for example a position sensor, a stepping motor or the like. This makes it possible to switch off the drive when the selected locking position or release position is reached by means of the control device. Accordingly, it is possible to avoid further activation of the drive device by means of the control unit after the selected locking position or release position has been reached.
The heating device is configured for heating the locking element. Such heating may be effected directly or by conduction or indirectly, for example by free convection. Preferably, the heating device is arranged at or in or at least in the vicinity of the locking element. Heating is understood in the scope of the present invention to mean at least heating by which the ice disposed on the locking element melts. Preferably, such heating is provided by means of a heating device, so that ice adjacent to the locking element at the locking system, the charging socket or the charging plug can also melt. The greater the thermal output of the heating device, the faster the ice can melt at the locking element, the further components of the locking system and the charging plug. In this case, excessive thermal power, by means of which damage to the charging socket or the charging plug is possible, is to be avoided according to the invention.
Preferably, the control device is configured for controlling the heating device. It is further preferred that the control device is configured to detect the resistance at least qualitatively when the locking bolt is moved or attempted to be moved, in order to control the heating device as a function of the detected resistance. The heating device can thus be controlled by means of the control device for heating the locking element in the event of an increase in resistance. Furthermore, a temperature sensor is preferably provided, by means of which the temperature of the locking system or of the region of the charging socket can be determined. Preferably, the temperature sensor is configured for determining the temperature of the locking means or of at least one partial region of the locking means. Thus, the operating state of the heating device can be confirmed by a simple means.
The locking system according to the invention for a charging socket of a motor vehicle has the advantage over conventional locking systems that freezing of the locking pin at the charging plug and at the charging socket in the locked position can be effectively avoided in a simple manner and in a cost-effective manner. In addition, with the aid of the locking system according to the invention, freezing of the locking bolt at the charging socket in the release position can be avoided in an advantageous manner. In this way, the intended applicability of the charging socket of a motor vehicle, in particular in the case of outdoor temperatures below freezing, is significantly improved.
According to an advantageous further development of the invention, it is provided in the locking system that the heating device is thermally coupled to the locking element for the purpose of transferring heat to the locking element in the form of conduction. For this purpose, the heat transfer from the heat element to the locking element can be effected, for example, by means of a sliding bush, a sliding bearing, a brush or the like, which contacts the locking element. Alternatively, the heating device can be arranged fixedly at the outer wall or inside the locking element and can thus be moved together with the locking element. The heat transfer by conduction has the advantage that particularly effective heating of the locking element can be ensured by simple means and at low cost.
According to the invention, the locking system preferably has a guide device for guiding the locking element, wherein the heating device is arranged on the guide device. The guide device is preferably designed such that the deviation of the locking element from the predefined path of movement between the locking position and the release position is prevented by the guide device in a form-fitting manner. The heating device is preferably arranged at the guide device in such a way that it is adjacent to the locking element, preferably directly or in close proximity to the locking element, in order to improve the heat transfer from the heating device to the locking element. According to the invention, the locking system can also be designed in such a way that a heat transfer from the heating device to the guide device and from the guide device to the locking element is provided. The arrangement of the heating device at the guide device has the advantage that the heat generated by the heating device can be supplied to the locking element in a particularly advantageous manner.
It is further preferred that the guide device has a lead-through, wherein the locking element can be guided through the lead-through, wherein the heating device is arranged in the region of the lead-through. The lead-through preferably completely surrounds the locking element, but may also surround only a section of the locking element. Preferably, the lead-through has a lead-through cross section which corresponds or substantially corresponds in shape and/or size to the locking element cross section of the locking element, so that a relative movement of the locking element and the lead-through is ensured. The heating device is preferably arranged in the region of the leadthrough for improved heat transfer to the locking element. By means of such a guide device, reliable guidance of the locking element is ensured in a simple manner and at low cost.
Preferably, the heating device surrounds or at least partially surrounds the locking element. The fact that the heating device surrounds the locking element has the advantage that heat can be transferred particularly uniformly to the locking element. The larger the heat transfer surface between the heating device and the locking element is configured, the faster the locking element can be heated by means of the heating element.
In a particularly preferred embodiment of the invention, the locking system has a display device for displaying the operating state of the heating device. The display device preferably has at least one LED which emits, for example, red light when the heating device is in operation. Alternatively or additionally, the display device may be designed, for example, as an interface for coupling to a display device of an onboard computer of a motor vehicle. In addition, the locking system can have a further display device, by means of which the locking state of the locking device can be displayed. The display device for displaying the operating state of the heating device has the advantage that it thereby displays to the user that the deicing process is ongoing and that a separation of the charging plug and the charging socket cannot take place during the time period of the deicing process. In contrast to a simple display of the locked or locked state of the locking system, this display has the advantage that the user is presented with the progress of the unlocking process of the locking system.
The locking system can preferably be coupled to a locking system of the motor vehicle in such a way that the heating device can be activated and/or deactivated by actuating the locking system. For this purpose, the control device is preferably coupled to the locking system or at least one radio key of the locking system. The unlocking of the motor vehicle can thus be detected by the control device. Additionally, the control device is preferably configured for determining the ambient temperature. Coupling to the locking system and/or determining the ambient temperature has the advantage that a desired use of the heating device can be achieved, i.e. in the event of unlocking of the motor vehicle or in the event of a frost risk. This reduces the energy consumption and wear of the locking system.
According to a second aspect of the invention, this object is achieved by a charging socket for a motor vehicle. The charging socket is configured for receiving a charging plug for electrically coupling the motor vehicle to an external current source for charging an energy store of the motor vehicle. According to the invention, the charging socket has a locking system according to the invention. In addition to the locking system, the charging socket is preferably constructed in accordance with conventional or standardized charging sockets according to the prior art. All the advantages already described for the locking system according to the first aspect of the invention result in the described charging socket. The charging socket according to the invention thus has the advantage over conventional charging sockets that freezing of the latching pin at the charging plug and at the charging socket in the latching position can be effectively avoided in a simple manner and in a cost-effective manner. In addition, with the charging socket according to the invention, freezing of the latching bolt at the charging socket in the release position can be avoided in an advantageous manner. In this way, the intended applicability of the charging socket, in particular in the case of outdoor temperatures below freezing, is significantly improved.
According to a third aspect of the invention, this object is achieved by a motor vehicle having an energy store. The energy store can be charged by means of an external current source. The motor vehicle is preferably designed as a plug-in hybrid or electric vehicle and has a drive with one or more electric motors. According to the invention, the motor vehicle has a charging socket according to the invention for the purpose of being electrically coupled to a current source for charging the energy store. All the advantages already described for the locking system according to the invention according to the first aspect of the invention and the charging socket according to the invention according to the second aspect of the invention result in the described motor vehicle. The motor vehicle according to the invention thus has the advantage over conventional motor vehicles that freezing of the latching pin at the charging plug and at the charging socket in the latched position can be effectively avoided in a simple manner and in a cost-effective manner. In addition, in the motor vehicle according to the invention, freezing of the locking bolt at the charging socket in the release position can be avoided in an advantageous manner. In this way, the intended applicability of the charging socket of a motor vehicle, in particular in the case of outdoor temperatures below freezing, is significantly improved.
According to a fourth aspect of the invention, the object is achieved by a method for operating a motor vehicle according to the invention. The method comprises the following steps:
-detecting the unlocking of the motor vehicle by means of the control device,
determining the ambient temperature of the motor vehicle by means of a control device, and
-activating, by means of the control device, a heating device for heating the locking element if the determined ambient temperature is below the lower temperature threshold.
In a first method step, the motor vehicle is unlocked by means of the control device recognition. Unlocking can take place, for example, by means of a radio signal of a radio key, actuation of a sensor at the motor vehicle, a conventional mechanical vehicle key or the like. In the case of unlocking by means of a radio key, the detection can be effected, for example, by receiving a radio signal of the radio key and/or by detecting an unlocking process of the motor vehicle which is carried out by means of a locking system of the motor vehicle.
In a second method step, the ambient temperature of the motor vehicle is determined by means of the control device. This determination can be effected, for example, by direct actuation of a temperature sensor of the motor vehicle or by querying the ambient temperature from an on-board computer, a parking heater, an air conditioner or the like.
In a third method step, the determined ambient temperature is compared with a predefined temperature threshold. The lower temperature threshold is the temperature from which freezing of the locking system is imminent and is therefore preferably 0 ℃ or at least 0 ℃. Due to local temperature differences the temperature threshold is preferably 3 ℃ or at least 3 ℃. Instead of the ambient temperature, the temperature of the charging socket, preferably of the locking element of the charging socket, can also be used within the scope of the method according to the invention. In this case, the charging socket has at least one correspondingly configured temperature sensor.
All the advantages already described for the locking system according to the invention according to the first aspect of the invention, the charging socket according to the invention according to the second aspect of the invention, and the motor vehicle according to the invention according to the third aspect of the invention result in the described method. The method according to the invention thus has the advantage over conventional methods that freezing of the latching pin at the charging plug and at the charging socket in the latching position can be effectively avoided in a simple manner and in a cost-effective manner. In addition, in the motor vehicle according to the invention, freezing of the locking bolt at the charging socket in the release position can be avoided in an advantageous manner. In this way, the intended applicability of the charging socket of a motor vehicle, in particular in the case of outdoor temperatures below freezing, is significantly improved.
Drawings
The locking system according to the invention, the charging socket according to the invention, the motor vehicle according to the invention and the method according to the invention are explained in more detail subsequently with reference to the drawings. Wherein each schematically:
figure 1 shows a preferred embodiment of a charging socket according to the invention in a front view,
figure 2 shows in perspective view a charging plug according to the prior art,
figure 3a shows a preferred first embodiment of the locking system according to the invention in a cross-sectional view,
figure 3b shows a preferred second embodiment of the locking system according to the invention in a cross-sectional view,
figure 4 shows a preferred embodiment of a motor vehicle according to the invention in a side view,
fig. 5 shows a preferred embodiment of the method according to the invention for operating a motor vehicle.
Elements with the same function and mode of action are provided with the same reference symbols in fig. 1 to 3b, respectively.
REFERENCE SIGNS LIST
1 locking system
2 charging socket
3 Motor vehicle
4 locking element
5 concave part
6 charging plug
7 drive device
8 control device
9 heating device
10 guide device
11 passing-through part
12 display device
13 locking system
14 energy accumulator
15 charging socket contact
16 charging plug contact
17 temperature sensor
100 first method step
200 second method step
300 third method step
I locking position
II release position.
Detailed Description
A preferred embodiment of a charging socket 2 according to the invention is shown schematically in a front view in fig. 1. The charging socket 2 has a plurality of charging socket contacts 15 for establishing an electrical connection with charging plug contacts 16 of the charging plug 6 shown in fig. 2. The charging socket 2 has a locking system 1 with two locking elements 4 (see fig. 3a and 3b) which are arranged at opposite regions of the charging socket 2. The locking element 4 can engage into the recess 5 of the charging plug 6 on both sides (see fig. 2). Furthermore, the charging socket 2 has a display device 12 with LEDs, which is designed to display the operating state of the heating device 9 of the locking system 1 (see fig. 3a and 3 b).
A charging plug 6 according to the prior art is depicted schematically in a perspective view in fig. 2. The charging plug 6 is designed for mechanical and electrical connection to the charging socket 2 and has a large number of charging plug contacts 16 for electrical connection. The charging plug 6 has a recess 5 at the opposite side, which is designed for the passage of the locking element 4 of the locking system 1 of the charging socket 2 in order to thereby positively fix the charging plug 6 in the charging socket 2.
A preferred first embodiment of the locking system 1 according to the invention is depicted schematically in a sectional view in fig. 3 a. The locking system 1 has a locking element 4 in the form of a locking bolt, which is linearly movable between a locking position I and a release position II by means of a drive 7 of the locking system 1. Fig. 3a shows the locking element 4 in the locking position I. In the locking position I, the locking element 4 is in the extended state. For controlling the drive 7, the locking system 1 has a control device 8. Furthermore, the locking system 1 has a guide 10 with a lead-through 11 for guiding the locking element 4, wherein the locking element is guided through the lead-through. A heating device 9 is arranged on the guide device 10, which surrounds the locking element 4 and is designed to heat the locking element 4 from the outside. The heating device 9 is preferably controllable by means of a control device 8.
A second preferred embodiment of the locking system 1 according to the invention is depicted schematically in a sectional view in fig. 3 b. The lock-up system 1 according to the second embodiment differs from the lock-up system 1 according to the first embodiment in terms of the configuration of the heating device 9. In the second embodiment, the heating device 9 is arranged inside the hollow chamber of the locking element 4 and is thus configured for heating the locking element 4 from the outside. Preferably, the heating device 9 is configured as a heating coil. Further preferably, the heating device 9 is controllable by means of the control device 8. In fig. 3b, the locking element 4 is depicted in the release position II. In the release position II, the locking element 4 is in the retracted state.
Fig. 4 shows schematically in a side view an embodiment of a motor vehicle 3 according to the invention. The motor vehicle 3 is preferably designed as a plug-in hybrid or electric vehicle and has an energy store 14 for storing and for providing electrical energy for driving the motor vehicle 3. The energy storage 14 is arranged along the vehicle bottom of the motor vehicle 3. Furthermore, the motor vehicle 3 has an automatic locking system 13, which can preferably be actuated by means of a radio key, not illustrated. The motor vehicle 3 can thereby be locked and unlocked by means of the radio key. Furthermore, the motor vehicle 3 has a temperature sensor 17, which is arranged near the vehicle underbody at a front region of the motor vehicle 3. The temperature sensor 17 is configured to detect the ambient temperature. Finally, the motor vehicle 2 has a charging socket 2 according to the invention, which is arranged below the radiator grille of the motor vehicle 3 in the front region.
Fig. 5 shows a schematic flow chart of a preferred embodiment of the method according to the invention for operating a motor vehicle 3 according to the invention. The motor vehicle 3 is preferably configured as a plug-in hybrid vehicle or an electric vehicle. In a first method step 100, the triggering of a control command for operating the locking system 13 for unlocking the motor vehicle 3 is detected by means of the control device 8. In a second method step 200, the ambient temperature of the motor vehicle 3 is measured by means of the temperature sensor 17. Alternatively, the ambient temperature may also be obtained by receiving external weather data. The ambient temperature is determined by the control means 3. In a third method step 300, the ambient temperature is compared with a lower temperature threshold, preferably 0 ℃. Below the temperature threshold, the heating device 9 is activated by means of the control device 8 for heating the locking element 4 of the locking system 1. The activation state of the heating device 9 is preferably displayed by means of a display device 12, for example by means of preferably red LEDs.
Claims (10)
1. A locking system (1) for a charging socket (2) of a motor vehicle (3), having a movable locking element (4) for engaging into a recess (5) of a charging plug (6) for releasably locking the charging plug (6) in the charging socket (2); -drive means (7) for moving the locking element (4) between a locking position (I) and a release position (II); and a control device (8) for controlling the drive device (7),
it is characterized in that the preparation method is characterized in that,
the locking system (1) has a heating device (9) for heating the locking element (4), wherein the control device (8) is designed for controlling the heating device (9), and wherein the control device (8) is designed to detect a resistance force at least qualitatively during a movement or attempted movement of the locking element (4) in order to control the heating device (9) as a function of the detected resistance force.
2. The locking system (1) according to claim 1, characterized in that the heating device (9) is thermally coupled to the locking element (4) for conductively transferring heat to the locking element (4).
3. Locking system (1) according to claim 1 or 2, characterized in that the locking system (1) has a guide device (10) for guiding the locking element (4), wherein the heating device (9) is arranged at the guide device (10).
4. Locking system (1) according to claim 3, characterized in that the guide device (10) has a lead-through (11), wherein the locking element (4) can be guided through the lead-through (11).
5. Locking system (1) according to claim 1 or 2, characterized in that the heating device (9) surrounds or at least partially surrounds the locking element (4).
6. Locking system (1) according to claim 1 or 2, characterized in that the locking system (1) has a display device (12) for displaying the operating state of the heating device (9).
7. Detent system (1) according to claim 1 or 2, characterized in that the detent system (1) can be coupled to a locking system (13) of the motor vehicle (3) in such a way that the heating device (9) can be activated and/or deactivated by means of an actuation of the locking system (13).
8. A charging socket (2) for a motor vehicle (3) for receiving a charging plug (6) for electrically coupling the motor vehicle (3) to an external current source for charging an energy store (14) of the motor vehicle (3),
it is characterized in that the preparation method is characterized in that,
the charging socket (2) has a locking system (1) according to any one of the preceding claims.
9. A motor vehicle (3) having an energy store (14) which can be charged by means of an external current source,
it is characterized in that the preparation method is characterized in that,
the motor vehicle (3) has a charging socket (2) according to claim 8 for electrical connection with the current source for charging the energy store (14).
10. Method for operating a motor vehicle (3) according to claim 9, having the following method steps:
-detecting the unlocking of the motor vehicle (3) by means of the control device (8),
-determining the ambient temperature of the motor vehicle (3) by means of the control device (3), and
-activating the heating means (9) for heating the locking element (4) by means of the control means (8) if the determined ambient temperature is below a lower temperature threshold.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017211541.6 | 2017-07-06 | ||
| DE102017211541.6A DE102017211541B4 (en) | 2017-07-06 | 2017-07-06 | Locking system for a charging socket of a vehicle, charging socket with locking system, motor vehicle with charging socket and method for operating a motor vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109217025A CN109217025A (en) | 2019-01-15 |
| CN109217025B true CN109217025B (en) | 2021-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810737286.XA Active CN109217025B (en) | 2017-07-06 | 2018-07-06 | Locking system for a charging socket of a motor vehicle |
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| Country | Link |
|---|---|
| CN (1) | CN109217025B (en) |
| DE (1) | DE102017211541B4 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019125446A1 (en) * | 2019-09-20 | 2021-03-25 | Erich Jaeger Gmbh + Co. Kg | Data connector for establishing a data connection outside of a vehicle |
| DE102019127976A1 (en) * | 2019-10-16 | 2021-04-22 | Audi Ag | Arrangement for the automatic unlocking of a charging plug |
| EP3862274B1 (en) * | 2020-02-07 | 2023-04-19 | Goodrich Actuation Systems Limited | Anti-icing and de-icing heated lock pin system |
| CN111267647B (en) * | 2020-03-27 | 2021-07-02 | 石家庄科林电气股份有限公司 | Charging method of charging pile in low-temperature and humid environment |
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| KR20040048080A (en) * | 2002-12-02 | 2004-06-07 | 현대자동차주식회사 | Key locking device for preventing the frost of car |
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Also Published As
| Publication number | Publication date |
|---|---|
| DE102017211541B4 (en) | 2019-08-08 |
| DE102017211541A1 (en) | 2019-01-10 |
| CN109217025A (en) | 2019-01-15 |
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