# US 10,479,346 B2 · Hybrid vehicle and method of controlling the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,479,346 B2 - Document ID: US10479346B2 - Status: Granted - Kind: B2 - Application number: 15/379,339 - Filed: 2016-12-14 - Published: 2018-04-12 - Granted: 2019-11-19 - Earliest claimed: 2016-10-06 - Assignees: Hyundai Motor Company; Kia Motors Corporation - Applicants: Hyundai Motor Company; Kia Motors Corporation - Inventors: Daero Park; Woon Ki Cho; Seok Young Yun; Taehyuck Kim; Ji Hoon Kang; Dong Gu Han; Junyoung Park - Web page: https://patentgrep.com/patent/US10479346B2 ## CPC - B60W 20/15: Control strategies specially adapted for achieving a particular effect - B60K 6/26: characterised by the motors or the generators - B60K 6/28: characterised by the electric energy storing means, e.g. batteries or capacitors - B60K 6/387: Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means - B60K 6/48: Parallel type - B60K 17/02: characterised by arrangement, location, or kind of clutch - B60L 3/0023: {Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train} - B60W 10/06: including control of combustion engines - B60W 10/08: including control of electric propulsion units, e.g. motors or generators - B60W 10/113: with two input flow paths, e.g. double clutch transmission selection of one of the torque flow paths by the corresponding input clutch - B60W 30/186: excessive wear or burn out of friction elements, e.g. clutches - F16H 57/0412: {Cooling or heating; Control of temperature} - F16H 57/0416: {Air cooling or ventilation} - F16H 57/0473: {Friction devices, e.g. clutches or brakes} - B60K 2006/268: {Electric drive motor starts the engine, i.e. used as starter motor} - B60K 2006/4825: {Electric machine connected or connectable to gearbox input shaft} - B60L 2240/485: Temperature - B60W 2510/107: Temperature - B60W 2510/244: Charge state - B60W 2710/021: Clutch engagement state - B60W 2710/0644: Engine speed - B60W 2710/08: Electric propulsion units - B60W 2710/081: Speed - B60W 2710/1005: Transmission ratio engaged - B60Y 2200/92: Hybrid vehicles - B60Y 2306/05: Cooling - Y02T 10/62: Hybrid vehicles - Y10S 903/93: Conjoint control of different elements - B60W: CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT - B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN 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 - F16H: GEARING - B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION - Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS ## Abstract The present disclosure relates to a hybrid vehicle and a method of controlling the same. The hybrid vehicle includes a battery configured to store electrical energy, a motor configured to rotate using the electrical energy, a transmission including a first clutch and a second clutch that are connectable to the motor, and a controller configured to control rotation of the motor to cool the transmission when the transmission is determined to be in an overheated state. ## Claims ### Claim 1 A hybrid vehicle comprising: a battery configured to store electrical energy; a motor configured to rotate using the electrical energy; a transmission including a first clutch and a second clutch that are connectable to the motor; and a controller configured to control rotation of the motor to cool the transmission when the transmission is determined to be in an overheated state, wherein the overheated state of the transmission includes a state in which the first clutch and the second clutch are open. ### Claim 2 (depends on 1) The hybrid vehicle of claim 1, wherein the controller determines a state of charge (SOC) of the battery and controls rotation of the motor to cool the transmission based on a determined result of an SOC of the battery. ### Claim 3 (depends on 2) The hybrid vehicle of claim 2, further comprising: an engine configured to generate power; and an engine clutch disposed between the engine and the motor and configured to connect or disconnect the engine and the motor. ### Claim 4 (depends on 3) The hybrid vehicle of claim 3, wherein the SOC of the battery is classified as a first reference value and a second reference value, and the first reference value and the second reference value include differing values that represent the SOC of the battery with a numerical value. ### Claim 5 (depends on 4) The hybrid vehicle of claim 4, wherein, when the SOC of the battery is determined to be the first reference value or higher, the controller controls rotation of the motor to cool the transmission. ### Claim 6 (depends on 4) The hybrid vehicle of claim 4, further comprising a hybrid starter generator (HSG) configured to generate the electrical energy by using power of the engine and charge the battery. ### Claim 7 (depends on 4) The hybrid vehicle of claim 4, wherein, when the SOC of the battery is determined to be lower than the first reference value, the controller locks up the engine clutch, connects the engine to the motor, and controls rotation of the motor by using power of the engine to cool the transmission. ### Claim 8 (depends on 6) The hybrid vehicle of claim 6, wherein, when the SOC of the battery is determined to be lower than the second reference value, the controller locks up the engine clutch, connects the engine to the motor, and controls rotation of the motor by using power of the engine to cool the transmission, and charges the battery by using the HSG. ### Claim 9 (depends on 1) The hybrid vehicle of claim 1, wherein, when the first clutch and the second clutch are open, the controller controls a gear stage of the transmission to be neutral. ### Claim 10 (depends on 1) The hybrid vehicle of claim 1, wherein the transmission further includes a transmission overheat sensor configured to determine an overheated state of an inside of the transmission. ### Claim 11 (depends on 1) The hybrid vehicle of claim 1, further comprising a display configured to display information on an overheated state of the transmission when the transmission is overheated. ### Claim 12 A method of controlling a hybrid vehicle, the method comprising: determining an overheated state of a transmission including a first clutch and a second clutch that are connectable to the motor; and controlling rotation of a motor to cool the transmission when the transmission is determined to be in an overheated state, wherein the determining the overheated state of the transmission includes determining whether the first clutch and the second clutch are open. ### Claim 13 (depends on 12) The method of claim 12, wherein the controlling rotation of the motor to cool the transmission when the transmission is determined to be in the overheated state includes: determining an SOC of a battery; and controlling rotation of the motor to cool the transmission based on a determined result of an SOC of the battery. ### Claim 14 (depends on 12) The method of claim 12, further comprising controlling a gear stage of the transmission to be neutral when the first clutch and the second clutch are open. ### Claim 15 (depends on 13) The method of claim 13, wherein the controlling rotation of the motor to cool the transmission based on a determined result of an SOC of the battery includes controlling rotation of the motor to cool the transmission when the SOC of the battery is determined to be a first reference value or higher. ### Claim 16 (depends on 13) The method of claim 13, wherein the controlling rotation of the motor to cool the transmission based on a determined result of an SOC of the battery includes: connecting an engine to the motor to use power of the engine when the SOC of the battery is determined to be lower than the first reference value; and controlling rotation of the motor by using the power of the engine to cool the transmission. ### Claim 17 (depends on 13) The method of claim 13, wherein the controlling rotation of the motor to cool the transmission based on a determined result of an SOC of the battery includes: connecting the engine to the motor to use the power of the engine when the SOC of the battery is determined to be lower than a second reference value; controlling rotation of the motor by using the power of the engine to cool the transmission; and generating electrical energy by power of the engine and charging the battery by the electrical energy.