CN108705945B - Vehicle-mounted wireless charging receiving device, electric vehicle and wireless charging method thereof - Google Patents
Vehicle-mounted wireless charging receiving device, electric vehicle and wireless charging method thereof Download PDFInfo
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- CN108705945B CN108705945B CN201810507930.4A CN201810507930A CN108705945B CN 108705945 B CN108705945 B CN 108705945B CN 201810507930 A CN201810507930 A CN 201810507930A CN 108705945 B CN108705945 B CN 108705945B
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Classifications
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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
- 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
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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 relates to a vehicle-mounted wireless charging receiving device, an electric automobile and a wireless charging method thereof, and aims to improve the charging efficiency of the running electric automobile. The vehicle-mounted wireless charging receiving device comprises a wireless charging receiving end, a driving device and a controller; the controller receives position information which is sent by a control unit of the electric automobile and represents the current transverse position of the running electric automobile on the charging lane, and controls the driving device to drive the wireless charging receiving end to transversely move to a position where the transverse center of the wireless charging receiving end is opposite to the transverse center of the charging lane according to the position information and the current position of the wireless charging receiving end. The electric automobile comprises the vehicle-mounted wireless charging receiving device. In the wireless charging method, a running electric automobile senses the current transverse position of the running electric automobile on a charging lane, and the electric automobile controls the wireless charging receiving end to transversely move to a position where the transverse center of the wireless charging receiving end is opposite to the transverse center of the charging lane according to the current transverse position and the current position of the wireless charging receiving end.
Description
Technical Field
The invention relates to a vehicle-mounted wireless charging receiving device, an electric automobile and a wireless charging method thereof.
Background
An important factor affecting wireless charging efficiency is whether the transmitting end and the receiving end are in opposite positions, because the charging efficiency is greatly reduced once the positions are deviated, and even normal charging may not be performed when the deviation is too large. In terms of the wireless charging lane plan which is already proposed or is about to be proposed, the transmitting terminals are all arranged in the middle area of the charging lane. The electric automobile running on the wireless charging lane can ensure the charging efficiency only by ensuring that the receiving end of the electric automobile is strictly positioned at the transverse center of the charging lane. However, the electric vehicle running on the charging lane always has a certain swing in the transverse direction, and if the receiving end is fixedly installed on the electric vehicle, the condition of being right opposite to the transmitting end cannot be always met, so that the charging efficiency of the electric vehicle is greatly influenced.
Disclosure of Invention
Technical problem to be solved
The invention provides a vehicle-mounted wireless charging receiving device capable of improving charging efficiency of an electric vehicle in running, the electric vehicle and a wireless charging method thereof.
(II) technical scheme
In order to achieve the purpose, the invention adopts the main technical scheme that:
the invention provides a vehicle-mounted wireless charging receiving device for an electric automobile, which comprises: the wireless charging receiving end can move transversely along the electric automobile and is connected to the bottom of the electric automobile; the driving equipment is connected with the wireless charging receiving end to drive the wireless charging receiving end to move transversely; the controller is used for controlling the driving equipment to drive the wireless charging receiving end to move transversely and can be connected with a control unit of the electric automobile; the controller receives position information which is sent by the control unit and represents the current transverse position of the running electric automobile on the charging lane, and controls the driving device to drive the wireless charging receiving end to transversely move to the position where the transverse center of the wireless charging receiving end is opposite to the transverse center of the charging lane according to the position information and the current position of the wireless charging receiving end.
According to the present invention, the position information includes a lateral distance and a direction of the electric vehicle from a lateral center of the charging lane; the current position of the wireless charging receiving end comprises the transverse distance and the direction of the transverse center of the wireless charging receiving end deviating from the transverse center of the electric automobile; the controller calculates the transverse distance and direction of the transverse center of the wireless charging receiving end deviating from the transverse center of the charging lane according to the transverse distance and direction of the transverse center of the electric automobile deviating from the transverse center of the charging lane and the transverse distance and direction of the transverse center of the wireless charging receiving end deviating from the transverse center of the electric automobile, and moves the wireless charging receiving end by taking the calculated transverse distance and direction of the transverse center of the wireless charging receiving end deviating from the transverse center of the charging lane as the distance and direction of transverse movement of the wireless charging receiving end.
According to the invention, it also comprises: the wireless charging receiving end is fixed on the guide rail.
According to the invention, the drive device is an electric motor, the guide rail is provided with a slide rail and a rack extending along the guide rail, the electric motor is fixed on a bracket, the bracket is provided with a walking part which is jointed with the slide rail and can move along the slide rail, the bracket is suspended below the guide rail through the joint of the walking part and the slide rail, and an output shaft of the electric motor is sleeved with a gear which is meshed with the rack.
According to the invention, the wireless charging receiving end is fixed at the bottom of the bracket.
According to the invention, the wireless charging receiving end is a receiving coil.
The invention provides an electric automobile, which comprises a control unit and a vehicle-mounted wireless charging receiving device, wherein the vehicle-mounted wireless charging receiving device comprises: the wireless charging receiving end moves transversely along the electric automobile and is connected to the bottom of the electric automobile; the driving equipment is connected with the wireless charging receiving end to drive the wireless charging receiving end to move transversely; the controller is used for controlling the driving equipment to drive the wireless charging receiving end to move transversely and is connected with the control unit; the control unit senses the current transverse position of a running electric automobile on the charging lane and sends position information representing the position, and the controller receives the position information and controls the driving device to drive the wireless charging receiving end to transversely move to the position where the transverse center of the wireless charging receiving end is opposite to the transverse center of the charging lane according to the position information and the current position of the wireless charging receiving end.
According to the present invention, the position information includes a lateral distance and a direction in which a lateral center of the electric vehicle deviates from a lateral center of the charging lane; the current position of the wireless charging receiving end comprises the transverse distance and the direction of the transverse center of the wireless charging receiving end deviating from the transverse center of the electric automobile; the controller calculates the transverse distance and direction of the transverse center of the wireless charging receiving end deviating from the transverse center of the charging lane according to the transverse distance and direction of the transverse center of the electric automobile deviating from the transverse center of the charging lane and the transverse distance and direction of the transverse center of the wireless charging receiving end deviating from the transverse center of the electric automobile, and moves the wireless charging receiving end by taking the calculated transverse distance and direction of the transverse center of the wireless charging receiving end deviating from the transverse center of the charging lane as the distance and direction of transverse movement of the wireless charging receiving end.
According to the present invention, the control unit includes a video sensor and an arithmetic controller; the video sensor is arranged in the center of the front end of the electric automobile and used for shooting an image containing a lane line in front of the electric automobile and transmitting the image to the operation controller; and the operation controller receives the image, calculates the transverse distance and direction of the transverse center of the electric automobile deviating from the transverse center of the charging lane according to the image, forms position information and sends the position information.
According to the invention, the vehicle-mounted wireless charging receiving device further comprises a guide rail, the guide rail is fixed at the bottom of the electric automobile, the driving device is movably connected to the guide rail, and the wireless charging receiving end is fixed on the driving device.
According to the invention, the drive device is an electric motor, the guide rail is provided with a slide rail and a rack extending along the guide rail, the electric motor is fixed on a bracket, the bracket is provided with a walking part which is jointed with the slide rail and can move along the slide rail, the bracket is suspended below the guide rail through the joint of the walking part and the slide rail, and an output shaft of the electric motor is sleeved with a gear which is meshed with the rack.
According to the invention, the wireless charging receiving end is fixed at the bottom of the bracket;
according to the invention, the wireless charging receiving end is a receiving coil.
The invention further provides a wireless charging method for an electric automobile, which comprises the following steps: step 1, sensing the current transverse position of a running electric automobile on a charging lane; and 2, the electric automobile controls the wireless charging receiving end to transversely move to a position where the transverse center of the wireless charging receiving end is opposite to the transverse center of the charging lane according to the current transverse position and the current position of the wireless charging receiving end of the electric automobile.
According to the invention, in step 1: the current lateral position comprises the lateral distance and the direction of the lateral center of the electric automobile deviating from the lateral center of the charging lane; in step 2: the current position of the wireless charging receiving end comprises the transverse distance and the direction of the transverse center of the wireless charging receiving end deviating from the transverse center of the electric automobile, the transverse distance and the direction of the transverse center of the wireless charging receiving end deviating from the transverse center of the lane are calculated according to the transverse distance and the direction of the transverse center of the electric automobile deviating from the transverse center of the charging lane and the transverse distance and the direction of the transverse center of the wireless charging receiving end deviating from the transverse center of the electric automobile, and the calculated transverse distance and the calculated direction of the transverse center of the wireless charging receiving end deviating from the transverse center of the lane are used as the distance and the direction of transverse movement of the wireless charging receiving end to move the wireless charging receiving end.
According to the invention, step 1 comprises the following sub-steps: step 1.1, shooting an image containing a lane line in front of an electric automobile during driving; and 1.2, the electric automobile calculates the transverse distance and the direction of the transverse center of the electric automobile deviating from the transverse center of the charging lane according to the image to form the current transverse position.
(III) advantageous effects
The invention has the beneficial effects that:
by using the vehicle-mounted wireless charging receiving device for the electric automobile, the electric automobile controls the wireless charging receiving end to be always aligned to the charging transmitting end in the center of the charging lane according to the real-time position information of the electric automobile along with the running of the electric automobile on the charging lane, so that the charging efficiency of the electric automobile in running is improved, and the energy loss is reduced. Moreover, the problem that the charging transmitting end arranged on the road surface of the charging vehicle is strictly aligned with the charging receiving end arranged on the electric vehicle at any moment can be well solved through the vehicle-mounted wireless charging receiving device, so that the problem is solved without adding any device on the charging lane or performing other special reconstruction on the road. In addition, the vehicle-mounted wireless charging receiving device enables a driver to start high-efficiency charging as long as the electric automobile is driven into the charging lane, and the driver does not need to deliberately ensure that the receiving end on the electric automobile is aligned to the charging transmitting end in the center of the charging lane during driving, so that the driving fatigue is reduced.
When the electric automobile runs on the charging lane, the electric automobile controls the wireless charging receiving end to be always aligned to the charging transmitting end in the center of the charging lane according to the real-time position information of the electric automobile, so that the charging efficiency of the electric automobile during running is improved, and the energy loss is reduced. Moreover, the problem that the charging transmitting end arranged on the road surface of the charging vehicle is strictly aligned with the charging receiving end arranged on the electric vehicle at any moment can be well solved through the vehicle-mounted wireless charging receiving device, so that the problem is solved without adding any device on the charging lane or performing other special reconstruction on the road. In addition, the vehicle-mounted wireless charging receiving device enables a driver to start high-efficiency charging as long as the electric automobile is driven into the charging lane, and the driver does not need to deliberately ensure that the receiving end on the electric automobile is aligned with the charging transmitting end on the charging lane during driving, so that the driving fatigue is reduced.
By using the wireless charging method for the electric automobile, the electric automobile can control the wireless charging receiving end to be always aligned to the charging transmitting end in the center of the charging lane according to the real-time position information of the electric automobile along with the running of the electric automobile on the charging lane, so that the charging efficiency of the electric automobile in running is improved, and the energy loss is reduced. Moreover, the wireless charging method for the electric automobile can well solve the problem that the charging transmitting end arranged on the charging lane is strictly opposite to the wireless charging receiving end arranged on the electric automobile at any moment, so that the problem is solved without adding any device on the charging lane or performing other special reconstruction on the road. In addition, the vehicle-mounted wireless charging receiving device enables a driver to start high-efficiency charging as long as the electric automobile is driven into the charging lane, and the driver does not need to deliberately ensure that the receiving end on the electric automobile is aligned to the transmitting section of the charging lane during driving, so that driving fatigue is reduced.
Drawings
Fig. 1 is a schematic view illustrating a vehicle-mounted wireless charging receiving apparatus for an electric vehicle according to a first embodiment of the present invention mounted on a chassis of the electric vehicle;
fig. 2 is a schematic view of an electric vehicle equipped with the vehicle-mounted wireless charging receiving apparatus according to the first embodiment, wherein the electric vehicle runs on a charging lane;
fig. 3 is a detailed structural diagram of the vehicle-mounted wireless charging receiving apparatus for an electric vehicle, which is mounted on a chassis of the electric vehicle according to the first embodiment.
[ reference numerals ]
1: an electric vehicle; 2: a chassis; 3: a wireless charging receiving end; 4: a drive device; 5: a charging lane; 6: a guide rail; 7: a video sensor; 8: an arithmetic controller; 9: a lane line; 10: a charging transmitting terminal; 11: a slide rail; 12: a rack; 13: a support; 14: a walking member; 15: a gear.
Detailed Description
For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings.
Example one
Referring to fig. 1 and 2, in the present embodiment, there is provided an on-vehicle wireless charge receiving apparatus for an electric vehicle, which includes a wireless charge receiving terminal 3, a driving device 4, and a controller.
Specifically, the wireless charging receiving terminal 3 is connected to the bottom of the electric vehicle 1, facing the ground, and can move along the electric vehicle 1 in the transverse direction. In the present embodiment, the wireless charging receiver 3 is connected to the chassis 2 of the electric vehicle 1. Here, the lateral direction of the electric vehicle 1 refers to the width direction of the electric vehicle 1.
Specifically, the driving device 4 is connected with the wireless charging receiving terminal 3 so as to be able to drive the wireless charging receiving terminal 3 to move laterally.
Specifically, the controller can be connected with the control unit of the electric vehicle 1, and the controller can control the driving device 4 to drive the wireless charging receiving terminal 3 to move transversely, the controller receives position information which is sent by the control unit and represents the current transverse position of the running electric vehicle 1 on the charging lane 5, and the controller controls the driving device 4 to drive the wireless charging receiving terminal 3 to move transversely to a position where the transverse center (i.e. the central position in the transverse direction of the electric vehicle 1) of the wireless charging receiving terminal 3 is opposite to the transverse center of the charging lane 5 according to the position information sent by the control unit of the electric vehicle 1 and the current position of the wireless charging receiving terminal 3. Wherein, the line from the 'right direction' to the 'left direction' is vertical to the road surface of the charging lane 5.
Therefore, as the electric automobile 1 runs on the charging lane 5, the electric automobile 1 controls the wireless charging receiving terminal 3 to be always aligned to the charging transmitting terminal 10 in the center of the charging lane 5 according to the real-time position information of the electric automobile 1, so that the charging efficiency of the electric automobile 1 during running is improved, and the energy loss is reduced. Moreover, the problem that the charging transmitting terminal 10 arranged on the road surface of the charging lane 5 is strictly opposite to the charging receiving terminal arranged on the electric automobile 1 at any moment can be well solved through the vehicle-mounted wireless charging receiving device, so that the problem is solved without adding any device on the charging lane or carrying out other special reconstruction on the road. In addition, the vehicle-mounted wireless charging receiving device enables a driver to start high-efficiency charging only by driving the electric automobile 1 into the charging lane 5, and the driver does not need to deliberately ensure that a receiving end on the electric automobile 1 is aligned with the charging transmitting end 10 at the center of the charging lane 5 during driving, so that driving fatigue is reduced.
Further, in the present embodiment, referring to fig. 1, the vehicle-mounted wireless charging receiving apparatus further includes a guide rail 6 that can be fixed at the bottom of the electric vehicle 1, and preferably, the guide rail 6 may be fixed on the chassis 2 of the electric vehicle 1 by bolts. The driving device 4 is movably connected on the guide rail 6, and the wireless charging receiving end 3 is fixed on the driving device 4 and positioned below the driving device 4. Therefore, in this embodiment, the connection between the driving device 4 and the wireless charging receiving terminal 3 is fixed, that is, the driving device 4 and the wireless charging receiving terminal 3 move simultaneously, and the driving device 4 drives the wireless charging receiving terminal 3 to move by using its own movement. Of course, in other embodiments of the present invention, the driving device 4 may be fixed, and the wireless charging receiving terminal 3 may be movably connected to the guide rail 6, so that the driving device 4 drives the wireless charging receiving terminal 3 to move along the guide rail 6.
Further, referring to fig. 3, as an embodiment of a specific structure in which the driving device 4 is movably connected to the guide rail 6 and the driving device 4 drives itself and the wireless charging receiving terminal 3 to move along the guide rail 6, specifically, the driving device 4 is a motor, the guide rail 6 is provided with a sliding rail 11 extending along the guiding rail, the motor is fixed on a bracket 13, the bracket 13 is provided with a traveling member 14 engaged with the sliding rail 11 and capable of moving along the sliding rail 11, and the bracket 13 is suspended below the guide rail 6 through engagement of the traveling member 14 and the sliding rail 11, in this embodiment, the sliding rail 11 is a sliding groove, and the traveling member 14 is a roller, but the present invention is not limited thereto, and in other embodiments, the sliding rail 11 may also be a protruding bar, and the traveling member 14 may be a sliding groove engaged with the protruding bar. The guide rail 6 is also provided with a rack 12 extending along the guide rail, a gear 15 is sleeved on an output shaft of the motor, and the gear 15 is meshed with the rack 12. The coupling of the electric motor to the rail 6, which is movable along the rail, is thereby achieved by the cooperation of the rail 11 and the carriage 14, and the electric motor drive itself is achieved by the rack 12 and the gear 15 to move along the rail 6.
Further, in this embodiment, the wireless charging receiving terminal 3 is fixed at the bottom of the bracket 13, and the wireless charging receiving terminal 3 is a receiving coil.
Further, in the present embodiment, the above-described position information indicating the current lateral position of the traveling electric vehicle 1 on the charging lane 5 includes the lateral distance and direction in which the lateral center of the electric vehicle 1 deviates from the lateral center of the charging lane 5. The controller obtains the current position of the wireless charging receiving terminal 3 or memorizes the current position of the wireless charging receiving terminal 3, where the current position includes the lateral distance and direction of the lateral center of the wireless charging receiving terminal 3 deviating from the lateral center of the electric vehicle 1, and then the controller calculates the lateral distance and direction of the lateral center of the wireless charging receiving terminal 3 deviating from the lateral center of the charging lane 5 according to the lateral distance and direction of the lateral center of the electric vehicle 1 deviating from the lateral center of the electric vehicle 1 and the lateral distance and direction of the lateral center of the wireless charging receiving terminal 3 deviating from the lateral center of the electric vehicle 1, so as to obtain the distance and direction that the wireless charging receiving terminal 3 needs to move, which is the distance and direction that the driving device 4 needs to move in this embodiment. Thus, the wireless charging receiver 3 is moved with the calculated lateral distance and direction of the lateral center of the wireless charging receiver 3 from the lateral center of the charging lane 5 as the distance and direction of the lateral movement of the wireless charging receiver 3.
In addition, in the present embodiment, "fixed" means that the two cannot move relatively after being installed, and is not limited to being detachable or not, that is, "fixed" may be detachable or non-detachable.
In conclusion, the vehicle-mounted wireless charging receiving device of the embodiment enables the electric vehicle 1 to have high intelligent degree, safe and reliable use and wide application range.
Example two
Referring to fig. 1 and 2, the electric vehicle 1 of the present embodiment includes a chassis 2, a control unit, and the vehicle-mounted wireless charging receiving apparatus of the first embodiment.
Specifically, the wireless charging receiving terminal 3 is fixed on the chassis 2 in this embodiment, along the bottom of the electric vehicle 1, which is connected to the electric vehicle 1 and moves laterally along the electric vehicle 1. The driving device 4 is connected with the charging receiving terminal 3 to drive the wireless charging receiving terminal 3 to transversely move, the controller is connected with the control unit, the control unit senses the current transverse position of the running electric automobile 1 on the charging lane 5 and sends position information representing the position, and the controller receives the position information and controls the driving device 4 to drive the wireless charging receiving terminal 3 to transversely move to a position where the transverse center of the wireless charging receiving terminal is opposite to the transverse center of the charging lane 5 according to the position information and the current position of the wireless charging receiving terminal 3.
Therefore, as the electric automobile 1 runs on the charging lane 5, the electric automobile 1 controls the wireless charging receiving terminal 3 to be always aligned to the charging transmitting terminal 10 in the center of the charging lane 5 according to the real-time position information of the electric automobile 1, so that the charging efficiency of the electric automobile 1 during running is improved, and the energy loss is reduced. Moreover, the problem that the charging transmitting terminal 10 arranged on the road surface of the charging lane 5 is strictly opposite to the charging receiving terminal arranged on the electric automobile 1 at any moment can be well solved through the vehicle-mounted wireless charging receiving device, so that the problem is solved without adding any device on the charging lane 5 or carrying out other special reconstruction on the road. In addition, the vehicle-mounted wireless charging receiving device enables a driver to start high-efficiency charging only by driving the electric automobile 1 into the charging lane 5, and the driver does not need to deliberately ensure that a receiving end on the electric automobile 1 is aligned with the charging transmitting end 10 of the charging lane 5 during driving, so that driving fatigue is reduced.
Further, in the present embodiment, referring to fig. 2, the control unit is a lane keeping system (L KA) including a video sensor 7 and an arithmetic controller 8, the video sensor 7 is provided at a front center position of the electric vehicle 1 for taking an image including a lane line 9 right in front of the electric vehicle 1 and transmitting the image to the arithmetic controller 8, the arithmetic controller 8 receives the image, calculates a lateral distance and a direction of a lateral center of the electric vehicle 1 from a lateral center of the charging lane 5 based on the image, forms position information and sends out, and the controller acquires a current position of the wireless charging reception terminal 3 or memorizes the current position of the wireless charging reception terminal 3 including the lateral distance and the direction of the lateral center of the wireless charging reception terminal 3 from the lateral center of the electric vehicle 1, that is, the lateral distance and the direction of the lateral center of the charging reception terminal 3 from the lateral center of the charging lane 5, and the lateral distance and the direction of the lateral center of the wireless charging reception terminal 3 from the lateral center of the electric vehicle 1 from the lateral center of the charging lane 5, and calculates the lateral distance and the direction of the wireless charging reception terminal 3 from the lateral center of the wireless charging reception terminal 3 as a required distance and the lateral direction of the wireless charging reception terminal 3, and the wireless charging direction of the wireless charging reception terminal 3 are calculated as a required for movement.
Further, in this embodiment, the vehicle-mounted wireless charging receiving apparatus further includes a guide rail 6, the guide rail 6 is fixed at the bottom of the electric vehicle, preferably, the guide rail 6 is fixed on a chassis of the electric vehicle through a bolt, the driving device 4 is movably connected on the guide rail 6, and the wireless charging receiving terminal 3 is fixed on the driving device 4 and located below the driving device 4. Therefore, in this embodiment, the connection between the driving device 4 and the wireless charging receiving terminal 3 is fixed, that is, the driving device 4 and the wireless charging receiving terminal 3 move simultaneously, and the driving device 4 drives the wireless charging receiving terminal 3 to move by using its own movement. Of course, in other embodiments of the present invention, the driving device 4 may be fixed, and the wireless charging receiving terminal 3 may be movably connected to the guide rail 6, so that the driving device 4 drives the wireless charging receiving terminal 3 to move along the guide rail 6.
Further, referring to fig. 3, as an embodiment of a specific structure in which the driving device 4 is movably connected to the guide rail 6 and the driving device 4 drives itself and the wireless charging receiving terminal 3 to move along the guide rail 6, specifically, the driving device 4 is a motor, the guide rail 6 is provided with a sliding rail 11 extending along the guiding rail, the motor is fixed on a bracket 13, the bracket 13 is provided with a traveling member 14 engaged with the sliding rail 11 and capable of moving along the sliding rail 11, and the bracket 13 is suspended below the guide rail 6 through engagement of the traveling member 14 and the sliding rail 11, in this embodiment, the sliding rail 11 is a sliding groove, and the traveling member 14 is a roller, but the present invention is not limited thereto, and in other embodiments, the sliding rail 11 may also be a protruding bar, and the traveling member 14 may be a sliding groove engaged with the protruding bar. The guide rail 6 is also provided with a rack 12 extending along the guide rail, a gear 15 is sleeved on an output shaft of the motor, and the gear 15 is meshed with the rack 12. The coupling of the electric motor to the rail 6, which is movable along the rail, is thereby achieved by the cooperation of the rail 11 and the carriage 14, and the electric motor drive itself is achieved by the rack 12 and the gear 15 to move along the rail 6.
Further, in this embodiment, the wireless charging receiving terminal 3 is fixed at the bottom of the bracket 13, and the wireless charging receiving terminal 3 is a receiving coil. The receiving end of the wireless charging receiving end 3 and the motor are integrally installed on the guide rail 6.
In addition, in the present embodiment, "fixed" means that the two cannot move relatively after being installed, and is not limited to being detachable or not, that is, "fixed" may be detachable or non-detachable.
EXAMPLE III
The present embodiment provides a wireless charging method for an electric vehicle, which can be used for the electric vehicle 1 of the second embodiment. Specifically, the wireless charging method for the electric automobile comprises the following steps:
step 1, sensing the current transverse position of a running electric automobile 1 on a charging lane 5;
and 2, the electric automobile 1 controls the wireless charging receiving end 3 to transversely move to a position where the transverse center of the wireless charging receiving end 3 is opposite to the transverse center of the charging lane 5 according to the current transverse position and the current position of the wireless charging receiving end 3 of the electric automobile 1.
Therefore, as the electric automobile 1 runs on the charging lane 5, the electric automobile 1 controls the wireless charging receiving terminal 3 to be always aligned to the charging transmitting terminal 10 in the center of the charging lane 5 according to the real-time position information of the electric automobile 1, so that the charging efficiency of the electric automobile 1 during running is improved, and the energy loss is reduced. Moreover, the wireless charging method for the electric vehicle can well solve the problem that the charging transmitting terminal 10 arranged on the charging lane 5 is strictly aligned with the wireless charging receiving terminal 3 arranged on the electric vehicle 1 at any moment, so that the problem is solved without adding any device on the charging lane 5 or performing other special reconstruction on the road. In addition, the vehicle-mounted wireless charging receiving device enables a driver to start high-efficiency charging as long as the electric automobile 1 is driven into the charging lane 5, and the driver does not need to deliberately ensure that a receiving end on the electric automobile 1 is aligned with a transmitting section of the charging lane 5 during driving, so that driving fatigue is reduced.
Further, in the present embodiment, the current lateral position in step 1 includes the lateral distance and direction of the lateral center of the electric vehicle 1 from the lateral center of the charging lane 5, and specifically, step 1 includes the following sub-steps:
step 1.1, shooting an image containing a lane line 9 in front of an electric automobile 1 during driving;
and 1.2, the electric automobile 1 calculates the transverse distance and the direction of the transverse center of the electric automobile 1 deviating from the transverse center of the charging lane 5 according to the image to form the current transverse position.
Further, in this embodiment, step 2 specifically includes:
the current position of the wireless charging receiving terminal 3 includes a lateral distance and a direction in which a lateral center of the wireless charging receiving terminal 3 deviates from a lateral center of the electric vehicle 1, the lateral distance and the direction in which the lateral center of the electric vehicle 1 deviates from a lateral center of the charging lane 5 and the lateral distance and the direction in which the lateral center of the wireless charging receiving terminal 3 deviates from the lateral center of the electric vehicle 1 are calculated, the lateral distance and the direction in which the lateral center of the wireless charging receiving terminal 3 deviates from the lateral center of the lane are calculated, and the wireless charging receiving terminal 3 is moved with the calculated lateral distance and the calculated lateral direction in which the lateral center of the wireless charging receiving terminal 3 deviates from the lateral center of the lane as a distance and a direction of lateral movement of the wireless charging receiving terminal 3.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.
Claims (11)
1. The utility model provides an on-vehicle wireless receiving arrangement that charges for electric automobile which characterized in that includes:
the wireless charging receiving end (3) can transversely move along the electric automobile (1) and is connected to the bottom of the electric automobile (1);
the driving device (4) is connected with the wireless charging receiving end (3) to drive the wireless charging receiving end (3) to move transversely; and
the controller is used for controlling the driving device (4) to drive the wireless charging receiving end (3) to move transversely and can be connected with a control unit of the electric automobile (1);
wherein the controller receives position information indicating a current lateral position of the running electric vehicle (1) on the charging lane (5) sent by the control unit, the position information including a lateral distance and a direction of the electric vehicle (1) from a lateral center of the charging lane (5), the controller calculates the lateral distance and the direction of the lateral center of the wireless charging receiving terminal (3) from the lateral center of the charging lane (5) according to the lateral distance and the direction of the lateral center of the electric vehicle (1) from the lateral center of the charging lane (5) and the lateral distance and the direction of the lateral center of the wireless charging receiving terminal (3) from the lateral center of the electric vehicle (1), and uses the calculated lateral distance and the calculated direction of the lateral center of the wireless charging receiving terminal (3) from the lateral center of the charging lane (5) as a distance and the calculated lateral direction of the lateral center of the wireless charging receiving terminal (3) from the lateral center of the charging lane (5) as a distance of lateral movement of the wireless charging receiving terminal (3) Moving the wireless charging receiving end (3) in the departure direction to enable the wireless charging receiving end (3) to transversely move to a position where the transverse center of the wireless charging receiving end is opposite to the transverse center of the charging lane (5).
2. The vehicle-mounted wireless charge receiving apparatus for an electric vehicle according to claim 1, further comprising:
the wireless charging device comprises a guide rail (6) capable of being fixed at the bottom of an electric automobile (1), a driving device (4) is movably connected onto the guide rail (6), and a wireless charging receiving end (3) is fixed onto the driving device (4).
3. The vehicle-mounted wireless charge receiving apparatus for an electric vehicle according to claim 2,
the driving device (4) is an electric motor, a sliding rail (11) and a rack (12) extending along the electric motor are arranged on the guide rail (6), the electric motor is fixed on a support (13), a walking part (14) which is connected with the sliding rail (11) and can move along the sliding rail (11) is arranged on the support (13), the support (13) is suspended below the guide rail (6) through the connection of the walking part (14) and the sliding rail (11), a gear (15) is sleeved on an output shaft of the electric motor, and the gear (15) is meshed with the rack (12).
4. The vehicle-mounted wireless charge receiving apparatus for an electric vehicle according to claim 3,
the wireless charging receiving end (3) is fixed at the bottom of the support (13).
5. The vehicle-mounted wireless charge receiving apparatus for an electric vehicle according to claim 2,
the wireless charging receiving end (3) is a receiving coil.
6. The utility model provides an electric automobile, includes the control unit, its characterized in that still includes on-vehicle wireless receiving arrangement that charges, on-vehicle wireless receiving arrangement that charges includes:
the wireless charging receiving end (3) transversely moves along the electric automobile (1) and is connected to the bottom of the electric automobile;
the driving device (4) is connected with the wireless charging receiving end (3) to drive the wireless charging receiving end (3) to move transversely; and
the controller is used for controlling the driving equipment (4) to drive the wireless charging receiving end (3) to move transversely and is connected with the control unit;
wherein the control unit senses a current lateral position of the electric vehicle (1) traveling on a charging lane (5) and emits position information indicating the position, the position information including a lateral distance and a direction in which a lateral center of the electric vehicle (1) deviates from a lateral center of the charging lane (5), the controller receives the position information and calculates a lateral distance and a direction in which the lateral center of the wireless charging receiving terminal (3) deviates from the lateral center of the charging lane (5) from the lateral distance and the direction in which the lateral center of the electric vehicle (1) deviates from the lateral center of the charging lane (5) and the lateral distance and the direction in which the lateral center of the wireless charging receiving terminal (3) deviates from the lateral center of the electric vehicle (1), and the calculated lateral distance and the calculated direction in which the lateral center of the wireless charging receiving terminal (3) deviates from the lateral center of the charging lane (5) are used as the non-existence of the lateral distance and the direction Moving the wireless charging receiving end (3) by the distance and the direction of the transverse movement of the linear charging receiving end (3) so that the wireless charging receiving end (3) transversely moves to a position where the transverse center of the wireless charging receiving end is just opposite to the transverse center of the charging lane (5);
the control unit comprises a video sensor (7) and an arithmetic controller (8);
the video sensor (7) is arranged in the center of the front end of the electric automobile (1) and used for shooting an image containing a lane line (9) in front of the electric automobile (1) and transmitting the image to the operation controller (8);
and the operation controller (8) receives the image, calculates the transverse distance and the transverse direction of the transverse center of the electric automobile (1) deviating from the transverse center of the charging lane (5) according to the image, forms the position information and sends the position information.
7. The electric vehicle according to claim 6,
the vehicle-mounted wireless charging receiving device further comprises a guide rail (6), the guide rail (6) is fixed to the bottom of the electric automobile, the driving device (4) is movably connected to the guide rail (6), and the wireless charging receiving end (3) is fixed to the driving device (4).
8. The electric vehicle according to claim 7,
the driving device (4) is an electric motor, a sliding rail (11) and a rack (12) extending along the electric motor are arranged on the guide rail (6), the electric motor is fixed on a support (13), a walking part (14) which is connected with the sliding rail (11) and can move along the sliding rail (11) is arranged on the support (13), the support (13) is suspended below the guide rail (6) through the connection of the walking part (14) and the sliding rail (11), a gear (15) is sleeved on an output shaft of the electric motor, and the gear (15) is meshed with the rack (12).
9. The electric vehicle according to claim 8,
the wireless charging receiving end (3) is fixed at the bottom of the support (13).
10. The electric vehicle according to claim 7,
the wireless charging receiving end (3) is a receiving coil.
11. A wireless charging method for an electric vehicle is characterized by comprising the following steps:
step 1, sensing the current transverse position of a running electric automobile (1) on a charging lane (5), wherein the current transverse position comprises the transverse distance and the direction of the transverse center of the electric automobile (1) deviating from the transverse center of the charging lane (5);
step 2, the electric automobile (1) calculates the transverse distance and direction of the transverse center of the wireless charging receiving end (3) from the transverse center of the lane according to the transverse distance and direction of the transverse center of the electric automobile (1) from the transverse center of the charging lane (5) and the transverse distance and direction of the transverse center of the wireless charging receiving end (3) from the transverse center of the electric automobile (1), and moves the wireless charging receiving end (3) by taking the calculated transverse distance and direction of the transverse center of the wireless charging receiving end (3) from the transverse center of the lane as the distance and direction of the transverse movement of the wireless charging receiving end (3) so that the wireless charging receiving end (3) transversely moves to the position where the transverse center of the wireless charging receiving end (3) is over against the transverse center of the charging lane (5);
the step 1 comprises the following substeps:
step 1.1, shooting an image containing a lane line (9) in front of an electric automobile (1) during driving;
step 1.2, the electric automobile (1) calculates the transverse distance and the direction of the transverse center of the electric automobile (1) deviating from the transverse center of the charging lane (5) according to the image to form the current transverse position.
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| CN110758128A (en) * | 2019-11-04 | 2020-02-07 | 中国北方车辆研究所 | Vehicle-mounted unmanned vehicle charging system |
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