CN105048528A - Vehicle battery charging system and method - Google Patents
Vehicle battery charging system and method Download PDFInfo
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- CN105048528A CN105048528A CN201510222187.4A CN201510222187A CN105048528A CN 105048528 A CN105048528 A CN 105048528A CN 201510222187 A CN201510222187 A CN 201510222187A CN 105048528 A CN105048528 A CN 105048528A
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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
- B60L53/35—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles
- B60L53/36—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles by positioning the vehicle
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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
- B60L53/12—Inductive energy transfer
- B60L53/124—Detection or removal of foreign bodies
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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
- B60L53/12—Inductive energy transfer
- B60L53/126—Methods for pairing a vehicle and a charging station, e.g. establishing a one-to-one relation between a wireless power transmitter and a wireless power receiver
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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
- B60L53/35—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles
- B60L53/38—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles specially adapted for charging by inductive energy transfer
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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
- B60L2250/00—Driver interactions
- B60L2250/10—Driver interactions by alarm
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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
- B60L2270/00—Problem solutions or means not otherwise provided for
- B60L2270/10—Emission reduction
- B60L2270/14—Emission reduction of noise
- B60L2270/147—Emission reduction of noise electro magnetic [EMI]
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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
Abstract
The invention provides a vehicle battery charging system and method. The vehicle comprises a battery and a charging plate electrically connected with the battery. The vehicle also includes a control system which repeatedly sends relative signals during a battery charging process, so as to maintain the charging of the battery via the charging plate and response to detect an object near the charging plate or predict the object near the charging plate to interrupt the sending the relative signals, so as to stop charging the battery.
Description
Technical field
The disclosure relates to recharging of Vehicular battery.
Background technology
Along with the progress of vehicle propulsion and battery technology, the popularization degree for the charging method of battery electric vehicle (BEV) and plug-in hybrid electric vehicle (PHEV) improves.
Summary of the invention
A kind of vehicle comprises: battery; Charging panel, is electrically connected with battery; At least one controller.At least one controller described repeatedly sends the correlation signal of charging station during battery charging process, thus maintenance is charged the battery by charging panel.Enter near charging panel in response to object, at least one controller described interrupts the transmission of correlation signal to stop charging.
A kind of vehicle comprises: battery; Charging panel, is electrically connected with battery; At least one controller.At least one controller described sends correlation signal to charging system, makes charging system provide energy by charging panel to battery.At least one controller described also enters near charging panel in response to object and sends stop signal, makes charging system stop providing energy by charging panel to battery.
According to the present invention, provide a kind of vehicle, described vehicle comprises: battery; Charging panel, is electrically connected with battery; At least one controller, be configured to: send correlation signal to charging system, make charging system provide energy by charging panel to battery, and enter near charging panel in response to object and send stop signal, make charging system stop providing energy by charging panel to battery.
According to one embodiment of present invention, at least one controller described is also configured to: based on prediction object track and before object enters near charging panel, send stop signal.
According to one embodiment of present invention, at least one controller described is also configured to: leave near charging panel in response to object and export idle signal, make charging system continue through charging panel and provide energy to battery.
According to one embodiment of present invention, at least one controller described is also configured to: continue to send correlation signal after output idle signal, make charging system continue through charging panel and provide energy to battery.
Comprise for giving the method for vehicle battery charging: send a correlation signal to charging system, make charging system provide energy by charging panel to battery.Described method also comprises: in response to object being detected or estimate that object will enter output detection signal near charging panel near charging panel, make charging system stop providing energy; Leave near charging panel in response to object and export idle signal after detection signal, make charging system continue to provide energy.
According to the present invention, provide a kind of for the method for vehicle battery charging, described method comprises: send correlation signal to charging system, make charging system provide energy by charging panel to battery; In response to object being detected or estimate that object will enter output detection signal near charging panel near charging panel, charging system is made to stop providing energy; Leave near charging panel in response to object and export idle signal after detection signal, make charging system continue to provide energy.
According to one embodiment of present invention, the vicinity of charging panel is limited by the periphery of charging panel.
According to one embodiment of present invention, estimate that object will enter near charging panel based on the wind near charging panel or ground line gradient.
According to one embodiment of present invention, detection signal comprises the data of directing object to the susceptibility of energy.
Accompanying drawing explanation
Fig. 1 is the diagrammatic view of the vehicle being anchored in charging station place.
Fig. 2 is the flow chart of the algorithm performing lasting wireless association between vehicle and vehicle charger.
Fig. 3 is the flow chart of the algorithm for managing induction charging, and described algorithm comprises the foreign object detected near charged area.
The plane graph diagrammatic view in Tu4Shi vehicle sensors district.
Fig. 5 is the flow chart performing the algorithm of lasting wireless association based on the motion of object in sensor regions between vehicle and vehicle charger.
Embodiment
At this, embodiment of the present disclosure is described.It should be understood, however, that disclosed embodiment is only example, other embodiments can take various and alternative form.Accompanying drawing is not necessarily drawn in proportion; Some features may be exaggerated or be minimized, to show the details of specific components.Therefore, the details on concrete 26S Proteasome Structure and Function disclosed herein should not be interpreted as restriction, and as just for instructing those skilled in the art to use representative basis of the present invention in every way.As one of ordinary skill in the art will appreciate, to illustrate with reference to arbitrary accompanying drawing and the various features that describe can with the integrate features shown in one or more other accompanying drawings, to produce the embodiment clearly not illustrating or describe.The typical apply that is combined into of the feature illustrated provides representative embodiment.But the various combination of the feature consistent with instruction of the present disclosure and modification can be expected to be useful in embody rule or execution mode.
By battery electricity and provide power by the combination of the power source comprising battery electricity to vehicle.Such as, the hybrid electric vehicle (HEV) that power train is driven by battery and explosive motor can be considered.In these structures, battery can be re-charged electricity, and vehicle charger provides electric power to restore to make battery after battery discharge.
With reference to Fig. 1, show the vehicle charging system according to one or more embodiment, described vehicle charging system overall by reference numeral 10 indicates.Induction charging is used for electric power to be provided to vehicle 14 from vehicle charger 12, restores to make battery.Charging station 16 is shown as the vehicle 14 holding and will be undertaken charging by induction charging.Vehicle 14 is anchored in charging station 16 place of storage vehicle charger 12.Vehicle charger 12 can be connected to receive such as obtainable household current in common family garage.
Vehicle 14 comprises the secondary coil be accommodated in the induction charging plate 18 being arranged at vehicle 14 bottom surface.Vehicle auxiliary induction charging plate 18 is electrically connected to Vehicular battery.Vehicle 14 also comprises AC-DC power converter, with by the AC received from vehicle charger 12 electric rectification and be filtered into by by the DC of battery receptacle electricity.Vehicle charger 12 is arranged in the ground under vehicle 14, and comprises the main charge coil be accommodated in corresponding main induction charging panel 20.Main induction charging panel 20 is level generally, and is oriented to there is certain distance with vehicle auxiliary induction charging plate 18.Main induction charging panel 20 Height Adjustable, to produce the appropriate clearance being convenient to charge to vehicle 14.Electric current is provided to main coil, and main coil generates an electromagnetic field around main induction charging panel 20.When vehicle auxiliary induction charging plate 18 is in proximity relation with the main induction charging panel 20 being supplied with electric power, vehicle auxiliary induction charging plate 18 receives electric power by being positioned at the electromagnetic field of generation.In secondary coil, induce electric current, this electric current is sent to Vehicular battery subsequently, thus generation recharges effect.Gap between vehicle auxiliary induction charging plate 18 and main induction charging panel 20 takes into account the change of vehicle location, also takes into account the optional authorised vehicles held and have different ride-height.
In alternate embodiment (not shown), charging station main induction charging panel is configured to be in position vertical generally, such as, is positioned on upright wall or near upright wall.Vehicle is positioned at having such as the secondary induction charging plate of the correspondence in vertical portion before a part for front bumper or rear bumper or rear vertical portion.When vehicle is driven to charging station and is parked in the charge position of specifying, main induction charging panel and secondary induction charging plate obtain proximity relation.To the changing section of storing cycle position relevant, the gap between main induction charging panel and secondary induction charging plate will be reset targetedly.
Referring again to Fig. 1, vehicle 14 is provided with controller 22.Although vehicle control device 22 is shown as single controller, vehicle control device 22 can comprise the multiple controllers for controlling multiple Vehicular system.Such as, vehicle control device 22 can be vehicle system controller/Powertrain control module (VSC/PCM).In this, the Vehicular charging control section of VSC/PCM can be the software be embedded in VSC/PCM, or can be independent hardware unit.Vehicle control device 22 generally includes the microprocessor of any amount, ASIC, IC, memory (such as, FLASH, ROM, RAM, EPROM and/or EEPROM) and software code, performs sequence of operations with coordination with one another.Microprocessor in vehicle control device 22 also comprises timer, to follow the trail of elapsed time interval between time reference and selected event.The time interval of specifying is programmed so that controller provides specific command signal with the optional time interval and monitors given input.Vehicle control device and Vehicular battery telecommunication, and receive the signal of pilot cell charge level.Vehicle control device 22 is also utilized versabus agreement (such as, CAN) to be connected by vehicle rigid line and communicates with other controllers, and adopts radio communication.
Vehicle charger 12 is provided with the battery charger controller 24 with radio communication device.Similarly, battery charger controller 24 has embedded software, and can be programmed to regulate the flow of power provided by vehicle charger 12.The software that battery charger controller 24 comprises also comprises timer, to follow the trail of elapsed time between the event of specifying.Under selected conditions or when receiving the instruction of specifying, the flow of power flowing through charger 12 can be enabled, forbids or be reduced to battery charger controller 24.Vehicle charger 12 is configured to the signal receiving instruction charging instruction from vehicle control device 22.
Vehicle control device 22 is configured to and battery charger controller 24 radio communication.Radio communication is realized by RFID, NFC, bluetooth or other wireless modes.In at least one embodiment, described radio communication for completing the association process between vehicle 14 and vehicle charger 12 before starting charging process.Described association process can comprise: vehicle control device 22 sends the signal indicating certification (authentication) to ask to battery charger controller 24.Then, controller 22 receives response signal from battery charger controller 24, and uses this response signal to determine whether and authorize vehicle charger 12 by initial authentication state.Certification can by the impact of many prescription factors, and described prescription factors comprises manufacturer, rated power, safety key and/or other authentication factors.Based on the suitable response signal of battery charger controller 24, vehicle control device 22 determines that certainty associates between vehicle 14 and vehicle charger 12.Once the charger of certification be detected, vehicle control device 22 just provides enabling signal to battery charger controller 24, starts charging process to indicate charging system.The association that initial wireless request and follow-up authentication response are formed between these two devices " is shaken hands ".Described association also provides further secure communication and command signal between vehicle 14 and vehicle charger 12.If vehicle control device 22 does not receive certainty authentication response, then command signal can be provided to prevent charging.
As above about Fig. 1 mention, between vehicle auxiliary induction charging plate 18 and main induction charging panel 20, there is gap.About this gap, foreign object has an opportunity to enter into charging elect magnetic field.Disclose a kind of charging management method at this, described method comprises and enters into detection close to the region in charged electrical magnetic field and follow-up response to foreign object.At least one object sensor is arranged on vehicle 14 or charging station 16 place.Produce the surveyed area in the region comprised near a pair induction charging plate.Multiple object sensors of conbined usage can provide more comprehensively surveyed area.In addition, various sensor type is applicable to this application.In at least one embodiment, radar sensor is arranged on vehicle 14, to monitor the region near charged electrical magnetic field.Alternatively, ultrasonic sensing technologies or infrared sensing technology can be suitable for the object of object detection.
Vehicle control device 22 is configured to receive output signal from object sensor, and uses these data to strengthen the instruction being supplied to vehicle charger 12.Charging elect magnetic field is invaded, the region near object sensor monitoring tablet for foreign object.Such as, if charging panel ringwise, then at the center of annular, the intensity in charged electrical magnetic field is maximum, and the intensity in charged electrical magnetic field reduces along with the increase of the distance at the center with annular.It can be the region near the charging panel that object can be detected apart from the region of center preset distance of annular or charging panel.Object sensor activates before charge initiation and during charging process.If object detected near induction charging plate 18, then export the detection signal of the existence of directing object from transducer.If object do not detected near induction charging plate, then transducer exports the idle signal (clearancesignal) that instruction does not have foreign object near charging panel 18.Vehicle control device 22 is configured to: if receive detection signal from any transducer, then make battery charger controller 24 forbid vehicle charger 12.Disabled once charge, vehicle control device 22 just reactivates object sensor, to continue to monitor the region near induction charging plate.If all receive follow-up idle signal from all transducers, then vehicle control device 22 can be programmed to send restoring signal to battery charger controller 24.The instruction of the battery charging process forbidden by object detection before restoring signal instruction recovers.
Vehicle charger 12 can be configured to require repeatedly to send signal from vehicle 14, associates and maintain the charging process continued to keep certainty.Vehicle control device 22 can send off and on or send correlation signal constantly.In at least one embodiment, repeatedly correlation signal is sent with predetermined time interval.Also by triggering correlation signal to the relevant event of charging (such as, such as the threshold battery charge level of specifying or the predetermined cumlative energy threshold value transmitted by vehicle charger) and/or termination.Battery charger controller 24 can be programmed to: if within the time interval of specifying not from vehicle receiver to signal, then forbid main induction charging panel 20.As mentioned above, charging system is configured to: when object being detected near vehicle auxiliary induction charging plate 18, forbidding charging.The means of charging as the forbidding when foreign object being detected near charged electrical magnetic field to the needs of the correlation signal continued are utilized to be suitable.In at least one embodiment, vehicle control device 22 is configured to: in response to from any transducer output detection signal, interrupt repeatedly sending correlation signal to vehicle charger 12.The interruption of correlation signal makes the supply of electric power obtaining main induction charging panel 20 be cut off.Therefore, the electric current being supplied to battery via charging panel 18 reduces to zero.The termination signal of redundancy can be provided in addition to forbid vehicle charger 12.
Once object to have left near charging panel and be no longer detected, charging system 10 has just been configured to recover disabled charging process.Correlation signal can be reused as the means controlling the charging process performed by vehicle charger 12.As mentioned above, object sensor keeps activating at correlation signal intercourse.Once no longer foreign object be detected, just export idle signal from transducer.Vehicle control device 22 in response to come sensor idle signal and recover correlation signal repeat send.Therefore, vehicle charger 12 is impelled to recover to charge the battery via induction charging plate 20.Certainty charging restoring signal also can be provided, recover disabled charging process with order vehicle charger 12.If the time of having pass by exceedes predetermined amount of time, then charging system can experience the initial wireless association between vehicle 14 and charger 12, to start new charging process.
Vehicle control device 22 also can be configured to produce multiple alarm signal.With reference to Fig. 1, vehicle 14 is provided with user display 26 in the inside of passenger accommodation.User display 26 alert mechanism of operator.Controller 22 can produce display message in many different cars.Such as, produce display alarm, this display alert notification operator detects object and/or forbidding charging process.Horn for vehicle is other alert mechanism, and it can provide in response to object being detected near charged electrical magnetic field the alarm signal that outside can be heard.It is unique that loudspeaker alarm pulse duration and repeat pattern can be set to, detection of obstacles event and other event zone producing loudspeaker pulse to be separated.
200 methods showing the algorithm describing continued association process in method generally in fig. 2.In step 202., vehicle control device starts charging process, such as, starts charging process after the initial association of vehicle control device between vehicle and vehicle charger has realized.Then, vehicle control device determines the time interval T2 that whether pass by specify between current time and original time base T0 in a step 208.If not, then in step 204, controller remains on dormant state, and does not provide the command signal about Vehicular charging to charger.Then, controller turns back to step 208, again to judge the time interval of current time Distance Time benchmark T0 relative to the time interval T2 specified.It should be understood that time interval T2 can be enough short, with the time interval close to continued association between vehicle and charger.
Once the time interval T2 specified passes by, vehicle control device just determines whether vehicle is in moment of torsion initiate mode in step 210.If vehicle is in moment of torsion initiate mode, then in the step 212, vehicle control device can provide directive command to stop or forbidding the signal of vehicle charger.Then, timer will be reset to time reference T0 by controller in step 214, then turn back to initial association process in step 206.Although this embodiment is used for static charging station, but this can be applicable to the charging of induction type highway, in this case, by be arranged in the energising of road inductive charging coil and when vehicle movement to Vehicular charging, wherein, when vehicle travels on coil, vehicle absorbs energy by from the field produced by road inductive circular loop.
If vehicle is not in moment of torsion initiate mode in step 210, such as, vehicle is in parked state, then vehicle control device determines that vehicle is the need of the electric power from charger in the step 216.If vehicle battery charging level exceedes assign thresholds, and if there is no need when parking in charging station to provide electric power to other movable vehicles, then vehicle control device provides directive command to forbid or the signal of stop vehicle charger in step 226.It should be understood that the threshold charge levels of continued association process can or can not be identical with the battery threshold level started at first required by charging process.
If if battery charge level lower than the threshold charge levels of specifying or in the step 216 vehicle need from the electric power of charger so that movable vehicle, then correlation signal is sent to vehicle charger by vehicle control device in step 218.Association before the correlation signal sent in step 218 is again certainly any, and maintain given charging process.If vehicle charger does not receive this signal in a step 220, then in the step 212, vehicle control device or battery charger controller can be configured to charging is stopped, this is because time interval T2 has pass by and do not received the signal of association certainly.Then, timer will be reset to time reference T0 by controller in step 214, then turn back to initial association process in step 206.
Once vehicle charger receives correlation signal in a step 220, just continue in step 222 enable charging process and maintain charged state.Then, in step 224, controller resets timer and turns back to step 202.According to the duration of T2, at vehicle control device by method 200 circulation time, can consider to send correlation signal termly or constantly.
According to Fig. 3, show method 300, by method 300, vehicle control device based on whether having foreign object near charged electrical magnetic field is determined to enable Vehicular charging or forbidding Vehicular charging at least in part.In step 302, vehicle control device starts charging process.Association request as discussed above and certainty response can be needed to enable the selection of charging process.Battery electric quantity lower than Full Charge Capacity simultaneously battery be positioned at the selection that can to impel near relevant charging station charged state.Within step 306, vehicle control device makes object sensor activate, to monitor the region of induction charging panel area.Object sensor, once activate, just exports the signal of directing object detected state to vehicle control device.In step 308, vehicle control device uses the data received from object sensor to determine whether have foreign object near charged electrical magnetic field.If object do not detected, then in the step 310, vehicle control device sends and will enable vehicle charger to start the command signal providing electric power.In step 312, vehicle control device is also removed any alarm relevant to the event of object being detected before that may be stored in memory and is sent and indicate.Then, controller turns back to step 302 and step 306, to restart object detection.
Referring again to Fig. 3, if object sensor detects object in step 308, then vehicle control device forbids that charger provides electric power in a step 314.If battery charging process is carrying out, then step 314 is comprising and is interrupting this process in response to object detection signal.As discussed above, order is stopped by certainty or by suspending repeating to send and making battery charging process interrupt of correlation signal.The transmission that repeats suspending correlation signal makes vehicle lose with charger to associate, and battery is charged stop.If charging process not yet starts, then step 314 comprises the signal providing directive command to prevent charge initiation.
In step 316, vehicle control device determines whether that have sent instruction to vehicle operators detects object and alarm before forbidding Vehicular charging.Alarm before sends mark instruction by the alarm be stored in the memory of controller.If the alarm before having have sent, then controller turns back to step 306, and activator body sensor again, near charged electrical magnetic field, whether still have foreign object to detect.But, if the alarm before not having to send, then in step 318 and step 320, produce alarm in response to detecting object.As shown at step 320, described alarm can be able to be heard with the form of horn for vehicle pulse.Outside loudspeaker pulse can have different duration and/or repeat pattern, to notify the operator away from vehicle.Horn for vehicle pulse also can make the animal near charged electrical magnetic field leave this region.Described alarm also can comprise the text message of the mobile communications device being sent to operator.As indicated in step 318, to provide in car alarm to notify the operator of vehicle interior.Display message and the tone driver that can hear detect object near charged electrical magnetic field.After providing operator's alarm, in step 322, vehicle control device arranges internal alarm and sends mark, to store the instruction that have issued notice to operator.Then, controller turns back to step 306, and object sensor is activated.Like this, rejudge charged electrical magnetic field, and if no longer object detected near charged electrical magnetic field, then step 308 can allow to recover charging.
In alternative embodiments, vehicle control device can be configured to disconnect the switch in the vehicle circuit of secondary coil, to forbid further Vehicular charging.
The vertical view diagrammatic view in Tu4Shi vehicle sensors district 400.Vehicle 14 comprises the secondary coil be accommodated in the induction charging plate 18 being arranged at vehicle 14 bottom surface.Transducer 402 can be arranged on the bottom surface of vehicle 14, transducer 402 can have various sensor type, includes but not limited to ultrasonic wave, light detection and ranging (LIDAR), radio detection and ranging (RADAR), microwave, infrared ray (IR) and vision.Sensor type can be configured to detect multiple object properties, includes but not limited to that size, quality, temperature, density, metalline, radio frequency (RF) absorb and magnetic susceptibility.RF transducer is with preset frequency transmission RF energy; RF energy is arranged in reflections off objects or the absorption of RF energy transmission path.The RF magnetic susceptibility of object comprises RF and the magnetic absorbing character of object.The temperature change of object can be made based on the energy absorbed when being absorbed by object by the energy of sensor transmissions.The change of temperature can by including but not limited to that the transducer of IR transducer is determined.Based on the change of the type of the energy by sensor transmissions and the temperature of object, the classification of object or the object susceptibility to RF or magnetic property can be determined.This susceptibility can be directly or indirectly relevant to the susceptibility of electromagnetic field to object.Transducer 402 can be the single-sensor of the single position be arranged on vehicle 14 or be arranged on multiple transducers at the diverse location place on vehicle 14.Transducer 402 can be specifically designed to the object detection of the operation about induction charging plate 18.Generally speaking, the induction zone 404 near induction charging plate 18 for detecting the stationary object in the flux field of induction charging plate 18, and makes the flux field of charging panel 18 disintegrate when object being detected.Detection zone is limited in the scope of transducer.
Modern vehicle has multiple sensors, and these transducers are used for driver assistance to carry out vehicle operating and just operationally provides safety at vehicle.These transducers include but not limited to the sidepiece sensor installation 418 and 420 of forward sense device 406 above, backward transducer 408 below, sidepiece sensor installation 410 and 412 above, sidepiece sensor installation 414 and 416 below and transverse direction.These transducers can have various different purposes, comprising stop auxiliary, adaptive learning algorithms, side collision detect, crashproof blind spot detects, cross traffic detects and long distance (>75 rice), middle distance (15-75 rice) and short distance (<15 rice) geographical change assist (landchangeassistance) function.These transducers (406,408,410,412,414,416,418 and 420) separately or be combined with the transducer 402 being exclusively used in induction charging and can be used for detecting larger region 422.Because scope is comparatively large, therefore may need to process information from these transducers based on object properties and relative motion.In this region, direction 426 inspected object 424 can advanced along object 424.When estimating that object 424 can not be advanced along the direction 426 crossing with induction charging district 404, still can continue to monitor object 424.In addition, sensor information can be used for determining that whether object 428 can advance along estimating to intersect at induction charging plate 18 the most at last certain any direction 430.At expectation object 428 by when advancing along the direction 430 crossing with induction charging plate 18, the electromagnetic field of charging panel 18 can be deactivated, and thus electromagnetic field can be disintegrated before object enters induction charging district 404.In addition, object 432 can be advanced along being in the direction 434 that expectation intersects at induction charging district 404 in certain any scope 436 the most at last.The change in this direction can result from the environmental condition when determining the track 434 predicted, includes but not limited to wind or ground line gradient.Estimate that, by crossing with induction charging plate 18, the electromagnetic field of charging panel 18 can be deactivated at object 432, thus electromagnetic field can be disintegrated before object enters induction charging district 404.
Fig. 5 is the flow chart of method 500, by method 500, whether vehicle control device just will enter into induction charging district 404 along expectation or be advanced in the direction crossing with induction charging plate 18 and determine enable Vehicular charging or forbid Vehicular charging based on foreign object at least in part.In step 502, vehicle control device starts charging process.Association request as discussed above and certainty response can be needed to enable the selection of charging process.Battery electric quantity lower than Full Charge Capacity simultaneously battery be positioned at the selection that can to impel near relevant charging station charged state.In step 506, vehicle control device makes object sensor activate, to monitor the region around induction charging plate 18.Object sensor, once activate, just exports indication sensor and detects that the signal of object is to carry out reprocessing.In step 508, vehicle control device uses the data received from object sensor to determine the trajectory predictions of object, and whether comprise this track will be crossing with charging panel 18 or will enter into induction charging district 404.Step 510 determines whether not detect object or estimates that object whether will be crossing with charging panel 18 or enter induction charging district 404.If determine that not having object to be arranged in maybe will enter into induction charging district 404, then in the step 310, vehicle control device sends and enables vehicle charger to provide the command signal of electric power.In step 312, vehicle control device is also removed any alarm relevant to the event of object being detected before that may be stored in memory and is sent and indicate.Then, controller turns back to step 502 and step 506, to restart object detection.
Referring again to Fig. 5, if detected that object is arranged in induction charging district 404 or estimates that object will enter induction charging district 404 in step 510, then vehicle control device has forbidden that charger provides electric power in a step 314.Disintegrate the realization of required time based on making charging panel electromagnetic field and continue, the distance variable of sensor scan object trajectory.Such as, the electromagnetic field needing disintegrate a second can use the scanning area 422 of 15 feet or 5 meters, make this electromagnetic field by when estimate object by crossing with induction charging district with 30 miles per hours or enter induction charging district disintegrate.If battery charging process is carrying out, then step 314 is comprising in response to the object detection signal of prediction and is interrupting this process.As discussed above, order is stopped by certainty or by suspending repeating to send and making battery charging process interrupt of correlation signal.The transmission that repeats suspending correlation signal makes vehicle lose with charger to associate, and battery is charged stop.If charging process not yet starts, then step 314 comprises the signal providing directive command to prevent charge initiation.
In step 316, vehicle control device determines whether that have sent instruction to vehicle operators detects object and alarm before forbidding Vehicular charging.Alarm before sends mark instruction by the alarm be stored in the memory of controller.If the alarm before having have sent, then controller turns back to step 506, and activator body sensor again, near charged electrical magnetic field, whether still have foreign object to detect.But, if the alarm before not having to send, then in step 318 and step 320, produce alarm in response to detecting object.As shown at step 320, described alarm can be able to be heard with the form of horn for vehicle pulse.Outside loudspeaker pulse can have different duration and/or repeat pattern, to notify the operator away from vehicle.Horn for vehicle pulse also can make the animal near charged electrical magnetic field leave this region.Described alarm also can comprise the text message of the mobile communications device being sent to operator.As indicated in step 318, to provide in car alarm to notify the operator of vehicle interior.Display message and the tone driver that can hear detect object near charged electrical magnetic field.After providing operator's alarm, in step 322, vehicle control device arranges internal alarm and sends mark, to store the instruction that have issued notice to operator.Then, controller turns back to step 506, and object sensor is activated.Like this, rejudge charged electrical magnetic field, and if no longer object detected near charged electrical magnetic field, then step 508 can allow to recover charging.
When charging betides between highway charge period, algorithm can give the alarm to driver in step 318, then walks around step 320.
An advantage of said method is to provide sensing, and this contributes to preventing from being damaged by the foreign object entering induction charging electromagnetic field entering or estimate.The other useful aspect of described method is: continue to monitor after object being detected, if detect that object leaves charged electrical magnetic field in addition, recover charging process.Such as, object may momently through charged electrical magnetic field.Object detection will cause the interruption of charging process.Said method avoids the prolonged stoppage that caused by temporary transient object detection and causes Vehicular charging to keep not exclusively.Instantaneous detection event may not necessarily make operator turn back to the vehicle be not completely charged.
Process disclosed herein, method or algorithm can be sent to processing unit, controller or computer/by processing unit, controller or computer realize, described processing unit, controller or computer can comprise any existing programmable electronic control unit or special electronic control unit.Similarly, described process, method or algorithm can be stored as the data and instruction that can be performed by controller or computer in a variety of forms, described various ways includes but not limited to for good and all to be stored in non-ly writes storage medium (such as, ROM device) on information and be stored in the information can write on storage medium (such as, floppy disk, tape, CD, ram set and other magnetizing mediums and optical medium) changeably.Described process, method or algorithm also can be implemented as software executable object.Alternatively, described process, method or algorithm can utilize suitable nextport hardware component NextPort (such as, application-specific integrated circuit (ASIC) (ASIC), field programmable gate array (FPGA), state machine, controller or other nextport hardware component NextPorts or device) or the combination of hardware, software and fastener components to be realized in whole or in part.
Although be described above exemplary embodiment, these embodiments are not intended to describe all possible form that claim comprises.The word used in the description is descriptive words and non-limiting word, it should be understood that when not departing from spirit and scope of the present disclosure, can carry out various change.As previously mentioned, the feature of each embodiment can be combined, to form the of the present invention further embodiment that may be not explicitly described or illustrate.Although each embodiment may be described to the execution mode providing advantage or be better than other embodiments or prior art in one or more characteristic expected, but those of ordinary skill in the art should be realized that, one or more feature or characteristic can be traded off, to realize the total system attribute expected, the total system attribute expected depends on concrete application and execution mode.These attributes can include but not limited to cost, intensity, durability, life cycle cost, marketability, outward appearance, packaging, size, serviceability, weight, manufacturability, assembling easiness etc.Therefore, be described as be in one or more characteristic aspect and be not so good as the embodiment of the execution mode of other embodiments or prior art not outside the scope of the present disclosure, and can be supposed to for specific application.
Claims (9)
1. a vehicle, comprising:
Battery;
Charging panel, is electrically connected with battery;
At least one controller, is configured to: the correlation signal repeatedly sending charging station during battery charging process, thus maintains and charged the battery by charging panel, and enters the transmission of interrupting correlation signal near charging panel in response to object to stop charging.
2. vehicle as claimed in claim 1, wherein, at least one controller described is also configured to: based on the object of prediction track and before object enters near charging panel, interrupt the transmission of correlation signal.
3. vehicle as claimed in claim 2, wherein, at least one controller described is also configured to: based on object classification and interrupt the transmission of correlation signal.
4. vehicle as claimed in claim 3, wherein, described classification limits the susceptibility of the object pair energy relevant to the electromagnetic field from charging panel.
5. vehicle as claimed in claim 3, wherein, the change of the temperature of object when described classification is positioned near charging panel based on object.
6. vehicle as claimed in claim 2, wherein, the track of the object of described prediction is based on the wind near charging panel or ground line gradient.
7. vehicle as claimed in claim 1, wherein, charges when vehicle is on road.
8. vehicle as claimed in claim 1, wherein, at least one controller described is also configured to: enter near charging panel in response to object and send signal to make charging panel power-off.
9. vehicle as claimed in claim 1, wherein, at least one controller described is also configured to: enter near charging panel in response to object and give the alarm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/268,000 | 2014-05-02 | ||
| US14/268,000 US10773596B2 (en) | 2012-07-19 | 2014-05-02 | Vehicle battery charging system and method |
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| CN105048528A true CN105048528A (en) | 2015-11-11 |
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| DE102018004747A1 (en) | 2018-06-14 | 2019-01-24 | Daimler Ag | Charging station for inductive charging of an energy storage device of a vehicle |
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