CN103303154B - There is the battery-driven car of high speed data transmission function, battery charger and data transmission method - Google Patents
There is the battery-driven car of high speed data transmission function, battery charger and data transmission method Download PDFInfo
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- CN103303154B CN103303154B CN201210070814.3A CN201210070814A CN103303154B CN 103303154 B CN103303154 B CN 103303154B CN 201210070814 A CN201210070814 A CN 201210070814A CN 103303154 B CN103303154 B CN 103303154B
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- battery
- battery charger
- power line
- line communication
- driven car
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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
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
-
- 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
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
- Y02T90/167—Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
- Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
- Y04S30/12—Remote or cooperative charging
Abstract
The invention provides a kind of battery-driven car with high speed data transmission function, comprise: car end power line communication units, couple with the data source of battery-driven car, be suitable in process of charging, the data of the data source of battery-driven car are sent to battery charger by electric wireline, and/or described car end power line communication units is suitable for receiving data by electric wireline from battery charger in process of charging.A kind of battery charger with high speed data transmission function is also provided, comprise: battery charger end power line communication units, be suitable in process of charging, receive data by electric wireline from battery-driven car, and/or described battery charger end power line communication units is suitable for sending data by electric wireline to battery-driven car in process of charging.A kind of charge system comprising above-mentioned battery-driven car and battery charger is also provided; In addition, present invention also offers the data transmission method between a kind of battery charger and battery-driven car.Utilize said apparatus and method, while vehicle charging, realize high speed data transmission.
Description
Technical field
The present invention relates to vehicle technology field, particularly relate to a kind of battery-driven car, battery charger and the charge system with high speed data transmission function, and the data transmission method between battery-driven car and battery charger.
Background technology
Compared with traditional gasoline engine car, diesel-engined vehicle, battery-driven car run time pollute little, noise is little, efficiency is high.Due to these advantages, automobile manufacturers pushes various battery-driven car to general marketplace.
Battery-driven car needs supporting family expenses, commercial supplying to maintain electric energy with public battery charger in large quantities in actual use.One end of battery charger as shown in Figure 1 connects electrical network, and the other end connects battery-driven car and provides charging power for onboard charger.
Along with the development of electronics technology and information technology in the increase of onboard sensor quantity in battery-driven car and battery-driven car platform, in the process of moving, vehicle-relevant data presents quick growth state, such as CAN data, speed data, vibration data, environmental data, battery management system (BatteryManagementSystem, english abbreviation is BMS) and electronic control unit (ElectronicControlUnit, english abbreviation is ECU) data.These data are not only monitored, also for value added by marketing service, vehicle management and Voice & Video entertainment service etc. for general vehicle-state.
The vehicle-relevant data increased fast along with battery-driven car operation even may cause the data explosion problem occurred in similar mobile network, and Wi-Fi and Bluetooth technology more and more will cannot meet the big data quantity transmission requirement of electronlmobil.
Summary of the invention
The object of this invention is to provide a kind of battery-driven car, battery charger and the data transmission method with high speed data transmission function, while vehicle charging, realize high speed data transmission.
According to an aspect of the present invention, a kind of battery-driven car with high speed data transmission function is provided, comprises:
Car end power line communication units, couple with the data source of battery-driven car, be suitable in process of charging, the data of the data source of battery-driven car are sent to battery charger by electric wireline, and/or described car end power line communication units is suitable for receiving data by electric wireline from battery charger in process of charging.
Optionally, described car end power line communication units detects the difference of the pulse width modulation with energy transferring, therefrom extracts 0-1 information.
Optionally, described car end power line communication units is by the response of CAN feedback.
According to a further aspect of the present invention, provide a kind of battery charger with high speed data transmission function,
Comprise:
Battery charger end power line communication units, is suitable for, in process of charging, receiving data by electric wireline from battery-driven car, and/or described battery charger end power line communication units is suitable for sending data by electric wireline to battery-driven car in process of charging.
Optionally, described battery charger end power line communication units will be waited to transmit data code modulation, utilize the general input/output port of the power inverter of battery charger to be added on electric wireline by interface circuit.
Optionally, described battery charger end power line communication units will wait that the 0-1 stream of bits transmitting data corresponds to different pulse width modulations;
The different pulse width modulation that described 0-1 stream of bits is corresponding is consistent on horsepower output.
Optionally, described battery charger end power line communication units is received by CAN and replys from the feedback of battery-driven car.
According to another aspect of the present invention, a kind of charge system with high speed data transmission function is provided, comprises: above-mentioned battery-driven car and battery charger.
Optionally, described battery charger end power line communication units also comprises network interface, is suitable for being accessed network by this network interface.
Optionally, described battery charger end power line communication units is also suitable for coupling with home server and/or remote server.
Optionally, described battery-driven car also comprises battery and battery management system;
Described battery charger also comprises power inverter, and described power inverter also comprises controller and power cell;
Described controller is communicated by CAN with described battery management system, controls power cell by the process of charging of electric wireline to battery;
Described battery charger end power line communication units and car end power line communication units, by power line communication, make battery-driven car can upload or downloading data while charging.
According to another aspect of the present invention, the data transmission method between a kind of battery charger and battery-driven car is provided, comprises:
Step 1, car end power line communication units obtain the first data from battery-driven car data source; And/or battery charger end power line communication units obtains the second data
Step 2, car end power line communication units and battery charger end power line communication units connect; With
Described first data are sent to battery charger end power line communication units by electric wireline by step 3, car end power line communication units; And/or described second data are sent to car end power line communication units by electric wireline by battery charger end power line communication units.
Optionally, in described step 1, described battery charger end power line communication units obtains described second data by network and/or home server.
According to another aspect of the present invention, a kind of method sending data from battery charger to battery-driven car is provided, comprises:
Step 1, battery charger will wait that the 0-1 stream of bits transmitting data corresponds to different pulse width modulations; The different pulse width modulation that described 0-1 stream of bits is corresponding is consistent on horsepower output;
Step 2, battery-driven car detect the difference of the pulse width modulation with energy transferring, therefrom extract 0-1 information.
Optionally, described data transmission method also comprises:
Step 3, battery-driven car pass through CAN feeding back response information to battery charger.
Compared with prior art, the invention has the advantages that:
(1) realize the high speed data transmission of battery-driven car vehicle-relevant data, the speed of short range power line transmission can reach 200Mbps; Battery charger can be supplied to battery-driven car subordinate server by wired or wireless mode, or battery charger accessing Internet, uploads in the webserver of specifying by the battery-driven car vehicle-relevant data of acquisition after obtaining battery-driven car vehicle-relevant data;
(2) while charging, electric wireline is utilized to carry out data transmission: first multiplexing charging duration, data transmission period that need not be extra; Secondly, multiplexing electric wireline, does not need extra physical connection;
(3) hardware configuration (control chip of electric pressure converter embeds the information needing transmission in charging current) of multiplexing existing battery charger and battery-driven car, does not need extra hardware spending to complete data transfer task;
(4) home server at battery charger place directly can feed back LBS (location Based service) data to battery-driven car, avoids the extra data transmission from battery-driven car subordinate server to battery-driven car, saves vehicle-carrying communication bandwidth.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of commercial battery charger in prior art;
Fig. 2 utilizes battery charger as the schematic diagram of data transmission relaying between battery-driven car and server;
Fig. 3 is according to one embodiment of present invention, and a kind of have the battery-driven car of high speed data transmission function, the structural representation of battery charger;
Fig. 4 is the diagram of circuit of the communication process of the car end PLC unit shown in Fig. 3 and battery charger end PLC unit;
Fig. 5 a is according to one embodiment of present invention, the implementation schematic diagram of car end PLC unit and battery charger end PLC unit;
Fig. 5 b is according to another embodiment of the invention, the implementation schematic diagram of car end PLC unit and battery charger end PLC unit;
Fig. 5 c is according to still another embodiment of the invention, the implementation schematic diagram of car end PLC unit and battery charger end PLC unit;
Fig. 5 d is a kind of communication process schematic diagram of the car end PLC unit that provides of Fig. 5 c and battery charger end PLC unit;
Fig. 5 e is the another kind of communication process schematic diagram of the car end PLC unit that provides of Fig. 5 c and battery charger end PLC unit.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with accompanying drawing, the present invention is described in more detail.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Contriver finds after deliberation, in process of charging, battery-driven car is in halted state, vehicle-related information kept stable, data transmission between battery-driven car and its subordinate server can complete in process of charging, such one side is multiplexing charging duration, save the communication bandwidth (because in driving process, the communication bandwidth of vehicle should as far as possible for Real-time Data Service, such as GPS, car phone service etc.) in vehicle travel process on the one hand.Further, battery-driven car and the data transmission described in it between server can be completed by electric wireline in process of charging, so multiplexing charging circuit, do not need additionally to add the physical connection being exclusively used in communication.
Concrete, as shown in Figure 2, battery charger becomes the relaying of data transmission between battery-driven car and its subordinate server: when charging, and the relevant information of preserving in the data logging of battery-driven car or data logging sends to battery charger; When charging or after charging, battery charger by the modes such as network by obtain data retransmission to the server described in vehicle, concrete, after battery charger obtains battery-driven car vehicle-relevant data, battery-driven car subordinate server can be supplied to by wired or wireless mode, or battery charger accessing Internet, uploads to the battery-driven car vehicle-relevant data of acquisition in the webserver of specifying.Certainly, reverse data transmission, namely also can carry out from battery charger or vehicle subordinate server to the data transmission of battery-driven car simultaneously.
Based on above-mentioned analysis, according to one embodiment of present invention, a kind of battery-driven car, battery charger and the charge system with high speed data transmission function is provided.As shown in Figure 3, this charge system comprises:
Battery-driven car 200, battery charger 100, home server 400 and the remote server belonging to battery-driven car 200 300.Wherein, battery charger 100 couples with battery-driven car 200, home server 400 and remote server 300 respectively and carries out data transmission.
Although battery charger 100 shown in figure and home server 400 directly couple, and pass through network-coupled with remote server 300, but it will be appreciated by those skilled in the art that, as long as can realize data-transformation facility, battery charger 100 can be connected with various wired, wireless, direct or indirect connection mode with between home server 400, remote server.
Continue with reference to figure 3, described battery-driven car 200 comprises further:
Data logging/data logging 201a, In-vehicle networking data source, Audio and Video data source 201n etc. (being referred to as battery-driven car data source); Battery-driven car data source have recorded in battery-driven car driving process all data generated;
Battery 203, is connected by the power cell 105 of electric wireline with the power inverter 103 in battery charger 100; Power cell 105 pairs of batteries 203 charge;
BMS204, is coupled by the controller 104 in CAN and battery charger 100; The process of charging of BMS204 and controller 104 co-controlling power cell 105 pairs of batteries 203; And,
Car end power line communication (PowerLineCommunication) unit (being called for short car end PLC unit) 202, couple with above-mentioned battery-driven car data source, and coupled to the corresponding battery charger end PLC unit 102 in battery charger 100 by described electric wireline; In process of charging, car end PLC unit 202 obtains the data of battery-driven car data source, and is transmitted to battery charger end PLC unit 102.
Continue with reference to figure 3, described battery charger 100 comprises further:
Power inverter 103, comprises controller 104 and power cell 105; Wherein, power cell 105 is connected with the battery 203 in battery-driven car 200 by electric wireline; Power cell 105 pairs of batteries 203 charge; Controller 104 is coupled by the BMS204 in CAN and battery-driven car 200; The process of charging of BMS204 and controller 104 co-controlling power cell 105 pairs of batteries 203; And
Battery charger end PLC unit 102, is coupled to the corresponding car end PLC unit 202 of filling in battery-driven car 200 by described electric wireline; This battery charger end PLC unit 102 also couples with home server 400, remote server 300; In process of charging, battery charger end PLC unit 102 receives the data from car end PLC unit 202, and is transmitted to remote server 300 and/or home server 400.Battery charger end PLC unit 102 can also receive the data from remote server 300 and/or home server 400 and be transmitted to car end PLC unit 202.
With reference to figure 4, the communication process of described car end PLC unit 202 and battery charger end PLC unit 102 comprises:
S101, car end PLC unit 202 obtain the first data from battery-driven car data source;
The concrete communication protocol that the concrete data format of these the first data communicates with car end PLC unit 202 depending on battery-driven car data source, saying from data link layer, can be some specific frame formats;
S102, car end PLC unit 202 connect with battery charger end PLC unit 102;
If unidirectional transmission, receiving end detects signal in Physical layer, can start to receive;
If bidirectional transmission, then need the concrete agreement with reference to communicating between PLC unit, be generally sending end and send out one to receiving end and send request, receiving end confirms request, and sending end is received confirmation and connected, and starts to transmit data;
Described first data are sent to battery charger end PLC unit 102 by electric wireline by S103, car end PLC unit 202;
S104, battery charger end PLC unit 102 by the first data by forwarded to remote server 300, and/or the first data are sent to home server 400 by battery charger end PLC unit 102.
According to one embodiment of present invention, the implementation of car end PLC unit and battery charger end PLC unit (is with arrow line to represent data transmission) as shown in Figure 5 a in figure.Wherein, battery-driven car and battery charger realize respectively PLC hardware module (comprising car end PLC unit 31 and battery charger end PLC unit 33).Communicate between car end PLC unit 31 and battery charger end PLC unit 33.Battery charger end PLC unit 33 is accessed network by its network interface.
According to another embodiment of the invention, the implementation of car end PLC unit and battery charger end PLC unit as shown in Figure 5 b.Wherein, battery charger end PLC unit 43 realizes PLC module in the control chip of power inverter, the general input/output port (GPIO is a part for control chip) of multiplexing control chip (i.e. controller).The present embodiment, compared with the embodiment in Fig. 5 a, without the need to extra PLC chip, only need be done a small amount of change to existing battery charger hardware, can realize the data transmission between battery charger end PLC unit and car end PLC unit.
Concrete, the network interface 431 of control chip is by network or the data that directly receive from server (not shown), the battery charger end PLC unit 43 of control chip is added to electric wireline on general input/output port 432 by interface circuit by after data code modulation, car end PLC gathers electric signal, completes communication process after then carrying out filtering, demodulation, decoding.
According to still another embodiment of the invention, the implementation of car end PLC unit and battery charger end PLC unit as shown in Figure 5 c.Wherein, battery charger end PLC unit utilizes the control chip in power inverter to realize, become a part for the control algorithm (or control program, control process) of controller, power controller, directly by control algorithm, utilizes the difference of PWM mode to need the information insertion transmitted in current signal.
Above-mentioned battery charger end PLC unit 53 comprises to the data transmission procedure of car end PLC unit 51:
(1) battery charger end PLC unit 53 or controller obtain the data (0-1 stream of bits) needing to transmit, by pulse width modulations (i.e. pulse-width signal) different for its corresponding one-tenth.
Concrete, " constant voltage " signal exported after PWM can be superimposed with a harmonic component, and different pwm signals can cause the difference of the harmonic component superposed.Such modulation signal can have multiple, and what Fig. 5 d provided is wherein a kind of, and the phase place showing as the harmonic component of superposition is different.Can also, by changing the frequency of pwm signal, the frequency difference of the harmonic component of superposition be made to differentiate 0 and 1 yard, as shown in accompanying drawing 5e.
It should be noted that the different pulse width modulations here corresponding to 0-1 are consistent on horsepower output; Wherein, the product constant of pulse width and time is a necessary condition, and the level of " constant voltage " direct current signal of output is consistent.
(2) after pulse width modulation, energy is sent to battery by electric wireline by battery charger, circuit sensor and car end PLC unit 51 (or car end PLC unit) detect the difference of the pulse width modulation with energy transferring, therefrom extract 0-1 information.
In addition, due to when charging, CAN is mainly used in the communication between BMS and battery charger, in other embodiments of the present invention, in communication process, the response (such as reply acknowledgment signal) of receiving end/take over party to sending end/transmit leg also can utilize the CAN communication between car and battery charger to complete reply.
The present embodiment compared with the embodiment in Fig. 5 a, 5b, difference be communication process by realizing the control of charging signals, without the need to changing battery charger hardware.
It should be noted that and understand, when not departing from the spirit and scope of the present invention required by accompanying claim, various amendment and improvement can be made to the present invention of foregoing detailed description.Therefore, the scope of claimed technical scheme is not by the restriction of given any specific exemplary teachings.
Claims (13)
1. there is a battery-driven car for high speed data transmission function, comprising:
Car end power line communication units, couple with the data source of battery-driven car, be suitable in process of charging, the data of the data source of battery-driven car are sent to battery charger by electric wireline, and/or described car end power line communication units is suitable for receiving data by electric wireline from battery charger in process of charging
Wherein, described car end power line communication units detects the difference of the pulse width modulation with energy transferring, therefrom extracts 0-1 information.
2. battery-driven car according to claim 1, wherein, described car end power line communication units is by the response of CAN feedback.
3. there is a battery charger for high speed data transmission function, comprising:
Battery charger end power line communication units, is suitable for, in process of charging, receiving data by electric wireline from battery-driven car, and/or described battery charger end power line communication units is suitable for sending data by electric wireline to battery-driven car in process of charging,
Wherein, described battery charger end power line communication units will wait that the 0-1 stream of bits transmitting data corresponds to different pulse width modulations;
The different pulse width modulation that described 0-1 stream of bits is corresponding is consistent on horsepower output.
4. battery charger according to claim 3, wherein,
Described battery charger end power line communication units will be waited to transmit data code modulation, utilize the general input/output port of the power inverter of battery charger to be added on electric wireline by interface circuit.
5. battery charger according to claim 3, wherein, described battery charger end power line communication units is received by CAN and replys from the feedback of battery-driven car.
6. there is a charge system for high speed data transmission function, comprising:
Battery-driven car according to any one of claim 1 to 2;
Battery charger according to any one of claim 3 to 5.
7. charge system according to claim 6, wherein, described battery charger end power line communication units also comprises network interface, is suitable for being accessed network by this network interface.
8. charge system according to claim 6, wherein, described battery charger end power line communication units is also suitable for coupling with home server and/or remote server.
9. charge system according to claim 6, wherein, described battery-driven car also comprises battery and battery management system;
Described battery charger also comprises power inverter, and described power inverter also comprises controller and power cell;
Described controller is communicated by CAN with described battery management system, controls power cell by the process of charging of electric wireline to battery;
Described battery charger end power line communication units and car end power line communication units, by power line communication, make battery-driven car can upload or downloading data while charging.
10. the data transmission method between battery charger and battery-driven car, described battery-driven car is the battery-driven car such as according to any one of claim 1 to 2; Described battery charger is the battery charger such as according to any one of claim 3 to 5;
The method comprises:
Step 1, car end power line communication units obtain the first data from battery-driven car data source; And/or battery charger end power line communication units obtains the second data
Step 2, car end power line communication units and battery charger end power line communication units connect; With
Described first data are sent to battery charger end power line communication units by electric wireline by step 3, car end power line communication units; And/or described second data are sent to car end power line communication units by electric wireline by battery charger end power line communication units.
11. data transmission methods according to claim 10, wherein, in described step 1, described battery charger end power line communication units obtains described second data by network and/or home server.
The method of 12. 1 kinds of transmission data from battery charger to battery-driven car, comprising:
Step 1, battery charger will wait that the 0-1 stream of bits transmitting data corresponds to different pulse width modulations; The different pulse width modulation that described 0-1 stream of bits is corresponding is consistent on horsepower output;
Step 2, battery-driven car detect the difference of the pulse width modulation with energy transferring, therefrom extract 0-1 information.
13. methods sending data from battery charger to battery-driven car according to claim 12, also comprise:
Step 3, battery-driven car pass through CAN feeding back response information to battery charger.
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| CN101678800A (en) * | 2007-06-06 | 2010-03-24 | 丰田自动车株式会社 | Information system using vehicle, electric charging device, and vehicle |
| CN102082590A (en) * | 2010-12-24 | 2011-06-01 | 上海复旦微电子股份有限公司 | Data transmission method |
| CN102916464A (en) * | 2012-09-26 | 2013-02-06 | 中国电力科学研究院 | System for realizing communication between alternating-current charging device and electric vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101678800A (en) * | 2007-06-06 | 2010-03-24 | 丰田自动车株式会社 | Information system using vehicle, electric charging device, and vehicle |
| CN102082590A (en) * | 2010-12-24 | 2011-06-01 | 上海复旦微电子股份有限公司 | Data transmission method |
| CN102916464A (en) * | 2012-09-26 | 2013-02-06 | 中国电力科学研究院 | System for realizing communication between alternating-current charging device and electric vehicle |
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