# US 11,993,129 B2 · Electric traction vehicle with an air conditioning system that can also be activated when the vehicle is parked and corresponding control method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,993,129 B2 - Document ID: US11993129B2 - Status: Granted - Kind: B2 - Application number: 17/614,587 - Filed: 2021-05-20 - Published: 2023-03-16 - Granted: 2024-05-28 - Earliest claimed: 2020-05-20 - Assignees: Ferrari S.P.A. - Applicants: FERRARI S.p.A. - Inventors: Fabrizio Favaretto - Web page: https://patentgrep.com/patent/US11993129B2 ## CPC - B60H 1/00392: {for electric vehicles having only electric drive means} - B60H 1/00778: {the input being a stationary vehicle position, e.g. parking or stopping} - B60H 1/2218: {controlling the operation of electric heaters} - B60L 1/02: to electric heating circuits - B60R 13/0876: {for mounting around heat sources, e.g. exhaust pipes} - B60H 2001/003: {Component temperature regulation using an air flow} - Y02T 10/70: Energy storage systems for electromobility, e.g. batteries - B60H: ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF 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 - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract Electric vehicle having a chassis, which supports a pair of front wheels and a pair of rear wheels, a passenger compartment, which is arranged between the front wheels and the rear wheels, at least one electric motor connected to drive wheels, an electric energy storage device, an air conditioning system, which is designed to air condition the passenger compartment by heating or cooling the air present in the passenger compartment, and a control unit, which is configured to activate the air conditioning system even when the vehicle is parked and connected to an external charging system, wherein the air conditioning system has at least one thermal device, which is designed to exchange heat directly and only with the chassis and the control unit is configured to activate the thermal device even when the vehicle is parked and connected to an external charging system. ## Claims ### Claim 1 An electric vehicle (1) comprising: a chassis (2) which supports a pair of front wheels (3) and a pair of rear wheels (4) and comprises a plurality of internally empty boxed elements (15); a passenger compartment (5) which is arranged between the front wheels (3) and the rear wheels (4); at least one electric motor (10) connected to drive the pair of rear wheels (4); an electric energy storage device (13); an air conditioning system (16), which is designed to air condition the passenger compartment (5) by heating or cooling the air present in the passenger compartment (5) and comprises an air treatment unit (18) designed to cool or heat the air; and a control unit (20) which is configured to activate the air conditioning system (16) when the vehicle (1) is parked and connected to an external charging system (14); wherein the air conditioning system (16) comprises at least one thermal device (19) that feeds at least part of the air treated by the air treatment unit (18) inside the chassis (2) for exchanging heat directly and only with the chassis; wherein the chassis (2) comprises: at least one inlet opening (22) through which the air treated by the air treatment unit (18) enters the chassis (2), and at least one outlet opening (23) through which the air exits the chassis (2); and wherein the control unit (20) is configured to activate the thermal device (19) which feeds at least part of the air treated by the air treatment unit (18) inside the chassis (2) only when the vehicle (1) is parked and connected to an external charging system (14). ### Claim 2 (depends on 1) The electric vehicle (1) according to claim 1, wherein the air treatment unit (18) is configured to recirculate the air exiting the chassis (2). ### Claim 3 (depends on 1) The electric vehicle (1) according to claim 1, wherein the inlet opening (22) and the outlet opening (23) are arranged on the same side of the chassis (2) so that the air coming from the outlet opening (23) can be conditioned again and then re-introduced into the inlet opening (22). ### Claim 4 (depends on 1) The electric vehicle (1) according to claim 1, wherein a first path through which circulates the air treated by the air conditioning system (16) and intended for the air conditioning of the passenger compartment (5) is different and completely isolated from a second path through which circulates the air treated by the air conditioning system (16) and intended to heat or cool the chassis (2) so that the air circulating in the passenger compartment (5) does not mix with the air circulating through the chassis (2). ### Claim 5 (depends on 3) The electric vehicle (1) according to claim 3, wherein the chassis (2) internally comprises at least one dividing wall (24) which separates the inlet opening (22) from the outlet opening (23) so as to create inside the chassis (2) ran obligatory path between the inlet opening (22) and the outlet opening (23). ### Claim 6 (depends on 2) The electric vehicle (1) according to claim 2, wherein the air treatment unit (18) is configured to introduce air at the same temperature into the passenger compartment (5) and into the chassis (2). ### Claim 7 (depends on 2) The electric vehicle (1) according to claim 2, wherein the air treatment unit (18) is configured to introduce colder air into the passenger compartment (5) when the air conditioning provides heating, or warmer air when the air conditioning provides cooling compared to the air that is introduced into the chassis (2). ### Claim 8 (depends on 1) The electric vehicle (1) according to claim 1, wherein the thermal device (19) comprises at least one electric heater (25), which is mounted on the chassis (2) to heat the chassis by thermal conduction (2). ### Claim 9 (depends on 1) The electric vehicle (1) according to claim 1 further comprising a thermal insulation (26) which is arranged between the chassis (2) and the external environment and is not arranged between the chassis (2) and the passenger compartment (5). ### Claim 10 (depends on 9) The electric vehicle (1) according to claim 9, wherein the thermal insulation (26) is arranged at least between the chassis (2) and the road surface. ### Claim 11 (depends on 1) A control method of the electric vehicle (1) according to claim 1 further comprising the step of activating, only when the vehicle (1) is parked and connected to an external charging system (14), the air conditioning system (16) both to air condition the passenger compartment (5) by heating or cooling the air present in the passenger compartment (5), and to heat or cool the chassis (2).