# US 2014/0191721 A1 · Electric automobile charging system and electric automobile charging device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0191721 A1 - Document ID: US20140191721A1 - Status: Published application - Kind: A1 - Application number: 14/176,717 - Filed: 2014-02-10 - Published: 2014-07-10 - Earliest claimed: 2011-08-11 - Assignees: Kabushiki Kaisha Toshiba - Applicants: Kabushiki Kaisha Toshiba - Inventors: Hideki HAYASHI; Yoshio EBATA - Web page: https://patentgrep.com/patent/US20140191721A1 ## CPC - B60L 53/62: in response to charging parameters, e.g. current, voltage or electrical charge - B60L 53/60: Monitoring or controlling charging stations - H01M 10/4207: {for several batteries or cells simultaneously or sequentially} - H01M 10/465: {with solar battery as charging system} - H02J 3/46: Controlling the sharing of generated power between the generators, sources or networks - H01M 10/441: {for several batteries or cells simultaneously or sequentially} - H01M 2010/4278: {Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller} - H01M 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane - H02J 2105/37: exchanging power with electric vehicles [EV] or with hybrid electric vehicles [HEV] - Y02E 60/00: Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation - Y02E 60/10: Energy storage using batteries - Y02T 10/70: Energy storage systems for electromobility, e.g. batteries - Y02T 10/7072: Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors - Y02T 90/12: Electric charging stations - Y02T 90/14: Plug-in electric vehicles - Y02T 90/16: Information or communication technologies improving the operation of electric vehicles - Y04S 10/126: the energy generation units being or involving electric vehicles [EV] or hybrid vehicles [HEV], i.e. power aggregation of EV or HEV, vehicle to grid arrangements [V2G] - B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION - 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 ## Abstract An electric automobile charging system wherein a center device, an electric automobile, and a charging device that charges a storage battery section in said electric automobile are connected by power lines. The center device acquires information of the amount of power generated and the amount of power used, decides on cutoff of the charging current or reduction of current to the storage battery section in the electric automobile, based on the acquired information, and communicates instructions for the cutoff of the charging current or current reduction that has been decided. The charging device receives the instructions from the center device and interrupts the charging current to the storage battery section in the electric automobile or reduces the current, based on the received instructions. ## Claims ### Claim 1 An electric automobile charging system wherein a center device, an electric automobile, and a charging device that charges a storage battery section in said electric automobile are connected by power lines, wherein: (1) said center device comprises: (a) an information acquisition means for acquiring information of an amount of power generated and an amount of power used; (b) a decision means for deciding on cutoff of a charging current or reduction of current to said storage battery section in said electric automobile, based on said information acquired by said information acquisition means; and (c) a transmission means for giving instructions, by communication, for an cutoff of said charging current or current reduction that has been decided on by said decision means; and (2) said charging device comprises: (d) a reception means for receiving instructions from said transmission means; and (e) a current restriction means for interrupting a charging current to said storage battery section in said electric automobile or reduces said charging current, based on the instructions of said reception means. ### Claim 2 (depends on 1) The electric automobile charging system according to claim 1, wherein said charging device comprises: (f) a charging current decision means for deciding on an amount of reduction of charging current, based on an area information of an owner of said electric automobile and location information of said charging device. ### Claim 3 (depends on 1) The electric automobile charging system according to claim 1, wherein, if said electric automobile is of a preset vehicle type or enterprise type, said current restriction means of said charging device performs control so that cutoff or reduction of said charging current to said storage battery section is not performed. ### Claim 4 (depends on 1) The electric automobile charging system according to claim 1, wherein, if a residual battery charge of said storage battery of said electric automobile is below a preset fixed value, said current restriction means of said charging device performs control so that cutoff or reduction of said charging current to said storage battery section is not performed. ### Claim 5 An electric automobile charging system wherein a center device, an electric automobile, and a charging device that charges a storage battery section in said electric automobile are connected by power lines, comprising: (a) an information acquisition means for acquiring information of an amount of power generated and an amount of power used; (b) a decision means for deciding on cutoff of a charging current or reduction of said charging current to said storage battery section in said electric automobile, based on said information acquired by said information acquisition means; and (c) a current restriction means for interrupting said charging current to said storage battery section in said electric automobile or reduces said charging current, based on a decision result by said decision means. ### Claim 6 (depends on 5) The electric automobile charging system according to claim 5, further comprising a charging current decision means for deciding on an amount of reduction of charging current based on said area information of said owner of said electric automobile and said location information of said charging device. ### Claim 7 (depends on 5) The electric automobile charging system according to claim 5, wherein said current restriction means performs control so as not to interrupt or reduce said charging current to said storage battery section, if said electric automobile is of a preset vehicle type or enterprise type. ### Claim 8 (depends on 5) The electric automobile charging system according to claim 5, wherein, if a residual battery charge of said storage battery in said electric automobile is below a preset fixed value, said current restriction means performs control so that cutoff or reduction of said charging current to said storage battery section is not performed. ### Claim 9 An electric automobile charging device comprising: (a) an information acquisition means for acquiring information of an amount of power generated and an amount of power used; (b) a decision means for deciding on cutoff of a charging current or reduction of said charging current to a storage battery section in an electric automobile, based on information acquired by said information acquisition means; and (c) a current restriction means for interrupting said charging current to said storage battery section in said electric automobile or reduces said charging current, based on a decision result by said decision means. ### Claim 10 (depends on 9) The electric automobile charging device according to claim 9, further comprising (d) a charging current decision means for deciding on an amount of reduction of said charging current, based on said area information of said owner of said electric automobile and said location information of said charging device that performs charging of said storage battery section. ### Claim 11 (depends on 9) The electric automobile charging device according to claim 9, wherein said current restriction means performs control so as not to interrupt or reduce said charging current to said storage battery section, if said electric automobile is of a preset vehicle type or enterprise type. ### Claim 12 (depends on 9) The electric automobile charging device according to claim 9, wherein, if said residual battery charge of said storage battery of said electric automobile is below a preset fixed value, said current restriction means performs control so that cutoff or reduction of said charging current to said storage battery section is not performed. ### Claim 13 (depends on 2) The electric automobile charging system according to claim 2, wherein, if said electric automobile is of a preset vehicle type or enterprise type, said current restriction means of said charging device performs control so that cutoff or reduction of said charging current to said storage battery section is not performed. ### Claim 14 (depends on 2) The electric automobile charging system according to claim 2, wherein, if a residual battery charge of said storage battery of said electric automobile is below a preset fixed value, said current restriction means of said charging device performs control so that cutoff or reduction of said charging current to said storage battery section is not performed. ### Claim 15 (depends on 6) The electric automobile charging system according to claim 6, wherein said current restriction means performs control so as not to interrupt or reduce said charging current to said storage battery section, if said electric automobile is of a preset vehicle type or enterprise type. ### Claim 16 (depends on 6) The electric automobile charging system according to claim 6, wherein, if a residual battery charge of said storage battery in said electric automobile is below a preset fixed value, said current restriction means performs control so that cutoff or reduction of said charging current to said storage battery section is not performed. ### Claim 17 (depends on 10) The electric automobile charging device according to claim 10, wherein said current restriction means performs control so as not to interrupt or reduce said charging current to said storage battery section, if said electric automobile is of a preset vehicle type or enterprise type. ### Claim 18 (depends on 10) The electric automobile charging device according to claim 10, wherein, if said residual battery charge of said storage battery of said electric automobile is below a preset fixed value, said current restriction means performs control so that cutoff or reduction of said charging current to said storage battery section is not performed.