# US 12,214,697 B2 · Battery temperature adjustment system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,214,697 B2 - Document ID: US12214697B2 - Status: Granted - Kind: B2 - Application number: 18/098,410 - Filed: 2023-01-18 - Published: 2023-07-27 - Granted: 2025-02-04 - Earliest claimed: 2022-01-21 - Assignees: Honda Motor Co., Ltd. - Applicants: Honda Motor Co., Ltd. - Inventors: Toru Ogaki - Web page: https://patentgrep.com/patent/US12214697B2 ## CPC - B60L 58/26: by cooling - B60L 50/64: Constructional details of batteries specially adapted for electric vehicles - B60L 58/16: responding to battery ageing, e.g. to the number of charging cycles or the state of health [SoH] - H01M 10/425: {Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing (printed circuits H05K1/00)} - H01M 10/48: Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte (constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569) - H01M 10/486: {for measuring temperature} - H01M 10/613: Cooling or keeping cold - H01M 10/625: Vehicles - H01M 10/633: characterised by algorithms, flow charts, software details or the like - B60L 7/10: Dynamic electric regenerative braking (B60L7/22 takes precedence) - B60L 58/24: for controlling the temperature of batteries - B60L 58/27: by heating - B60L 2240/545: Temperature - H01M 2010/4271: {Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing} - H01M 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane - H02J 7/84: Control of state of health [SOH] - Y02E 60/10: Energy storage using batteries - Y02T 10/70: Energy storage systems for electromobility, e.g. batteries - 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 ## Abstract A battery temperature adjustment system includes: a battery; a cooling device to which electric power from an external power source and electric power from the battery are selectively supplied and configured to cool the battery; and a control device configured to control the cooling device to adjust a state of charge of the battery and a battery temperature. The control device stores a deterioration sensitivity map in which a deterioration sensitivity is preset according to the state of charge and the battery temperature, or is configured to calculate a deterioration sensitivity according to the state of charge and the battery temperature, and when a vehicle is connected to the external power source, the control device selects either the electric power from the battery or the electric power from the external power source based on the deterioration sensitivity to operate the cooling device. ## Claims ### Claim 1 A battery temperature adjustment system comprising: a battery configured to store electric power from an external power source, and supply electric power to a motor as a drive source of a vehicle; a cooling device to which the electric power from the external power source and the electric power from the battery are selectively supplied and configured to cool the battery; and a control device configured to control the cooling device to adjust a state of charge of the battery and a battery temperature, wherein: the control device stores a deterioration sensitivity map in which a deterioration sensitivity is preset according to the state of charge and the battery temperature, or is configured to calculate a deterioration sensitivity according to the state of charge and the battery temperature; and to operate the cooling device when the vehicle is connected to the external power source, the control device is configured to select between the electric power from the battery and the electric power from the external power source based on the deterioration sensitivity. ### Claim 2 (depends on 1) The battery temperature adjustment system according to claim 1, wherein: the control device estimates: a first estimated value of the state of charge and the battery temperature after cooling when the cooling device is operated by the electric power from the external power source; and a second estimated value of the state of charge and the battery temperature after cooling when the cooling device is operated by the electric power from the battery; when the vehicle is connected to the external power source, and when the deterioration sensitivity at the second estimated value is lower than the deterioration sensitivity at the first estimated value, the control device operates the cooling device by the electric power from the battery; and when the vehicle is connected to the external power source, and when the deterioration sensitivity at the first estimated value is lower than the deterioration sensitivity at the second estimated value, the control device operates the cooling device by the electric power from the external power source. ### Claim 3 (depends on 2) The battery temperature adjustment system according to claim 2, wherein when the deterioration sensitivity at the first estimated value is lower than the deterioration sensitivity at the second estimated value, before the cooling device is operated by the electric power from the battery, a user is notified of a proposal to operate the cooling device by the electric power from the battery. ### Claim 4 (depends on 3) The battery temperature adjustment system according to claim 3, wherein when the user permits the proposal, the control device operates the cooling device by the electric power from the battery. ### Claim 5 (depends on 3) The battery temperature adjustment system according to claim 3, wherein when the user does not permit the proposal, the control device operates the cooling device by the electric power from the external power source.