# US 12,179,622 B2 · Battery pack charging system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,179,622 B2 - Document ID: US12179622B2 - Status: Granted - Kind: B2 - Application number: 16/079,723 - Filed: 2017-10-16 - Published: 2019-02-28 - Granted: 2024-12-31 - Earliest claimed: 2016-12-05 - Assignees: Samsung SDI Co., Ltd. - Applicants: Samsung SDI Co., Ltd. - Inventors: Gilchoun Yeom; Hyeoncheol Jeong - Web page: https://patentgrep.com/patent/US12179622B2 ## CPC - B60L 53/62: in response to charging parameters, e.g. current, voltage or electrical charge - B60L 50/64: Constructional details of batteries specially adapted for electric vehicles - B60L 53/00: 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 - B60L 58/12: responding to state of charge [SoC] - B60R 16/03: for supply of electrical power to vehicle subsystems {or for (circuit arrangements for charging batteries H02J7/00)} - H01M 10/44: Methods for charging or discharging (circuits for charging H02J7/00) - H01M 50/249: specially adapted for aircraft or vehicles, e.g. cars or trains (constructional details of batteries specially adapted for electric vehicles B60L50/64) - H02J 7/00: Circuit arrangements for charging or discharging batteries or for supplying loads from batteries - H02J 7/02: for charging batteries from AC mains by converters - H02J 7/96: in response to battery voltage - B60L 53/66: Data transfer between charging stations and vehicles - B60L 2240/549: Current - H01M 10/425: {Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing (printed circuits H05K1/00)} - H01M 10/4257: {Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries} - 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 7/44: between battery management systems and power sources - H02J 7/82: Control of state of charge [SOC] - H02J 2105/30: the load networks being external to vehicles, i.e. exchanging power with vehicles - H02J 2105/33: exchanging power with road vehicles - H02J 2105/37: exchanging power with electric vehicles [EV] or with hybrid electric vehicles [HEV] - 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 - 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 - B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR - 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 Provided is a battery pack charging system including a charging device configured to receive a first signal from a battery pack and determine a charge condition of the battery pack based on the first signal; a battery pack configured to generate the first signal based on a state of charge of the battery pack and transmit the first signal to the charging device; and a controller configured to receive a second signal from the charging device and transmit the second signal to the battery pack. ## Claims ### Claim 1 A battery pack charging system comprising: a charging device configured to receive a first signal from a battery pack and determine a charge condition of the battery pack based on the first signal; the battery pack configured to generate the first signal having a waveform based on a state of charge of the battery pack and transmit the first signal to the charging device; and a controller separated from the charging device and from the battery pack, comprising a first controller port electrically coupled to the charging device and a second controller port different from the first controller port and electrically coupled to the battery pack, electrically coupled between the charging device and the battery pack via the first and second controller ports, and configured to receive, via the first controller port, a second signal comprising information about a state of the charging device from the charging device and transmit, via the second controller port, the second signal to the battery pack, wherein the state of the charging device is a current state of the charging device, wherein the information about the current state of the charging device comprises information related to at least one selected from current charging voltage and current charging current, wherein the controller is provided in a vehicle, the battery pack is provided in the vehicle and is further configured to supply electrical energy to the vehicle, and the charging device is provided separately from the vehicle, wherein the vehicle comprises a charging port to electrically connect the charging device to the vehicle, wherein the charging port comprises: a first port to electrically connect the battery pack to the charging device; and a second port to electrically connect the controller to the charging device, wherein the battery pack is to transmit the first signal to the charging device through the first port, and wherein the controller is to receive the second signal from the charging device through the second port. ### Claim 2 (depends on 1) The battery pack charging system of claim 1, wherein the battery pack generates the first signal based on the state of charge of the battery pack by a pulse width modulation (PWM) method. ### Claim 3 (depends on 2) The battery pack charging system of claim 2, wherein the battery pack generates the first signal based on a first waveform when the battery pack is in a full state of charge, and generates the first signal based on a second waveform when the battery pack is in a non-chargeable state, the second waveform being different from the first waveform. ### Claim 4 (depends on 2) The battery pack charging system of claim 2, wherein, when the battery pack is in a first state of charge, the battery pack generates the first signal based on a third waveform, and when the battery pack is in a second state of charge, the battery pack generates the first signal based on a fourth waveform, the fourth waveform being different from the third waveform. ### Claim 5 (depends on 4) The battery pack charging system of claim 4, wherein the first state of charge is a state in which the battery pack is chargeable with a first current, the second state of charge is a state in which the battery pack is chargeable with a second current, and the second current is greater than or equal to the first current. ### Claim 6 (depends on 1) The battery pack charging system of claim 1, wherein the controller converts the second signal received from the charging device according to a controller area network (CAN) communication protocol, and transmits the converted second signal to the battery pack. ### Claim 7 (depends on 1) The battery pack charging system of claim 1, wherein the second signal comprises information about a plurality of states of the charging device. ### Claim 8 (depends on 1) The battery pack charging system of claim 1, wherein the charging device is further configured to determine the charge condition of the battery pack based on the waveform of the first signal. ### Claim 9 (depends on 1) The battery pack charging system of claim 1, wherein the information about the state of the charging device comprises information of whether the charging device is connected to the vehicle. ### Claim 10 (depends on 1) The battery pack charging system of claim 1, wherein the battery pack comprises a battery management module configured to generate and transmit the first signal to the charging device. ### Claim 11 (depends on 1) The battery pack charging system of claim 1, wherein the battery pack is to transmit the first signal to the charging device along a first path separated from the controller.