WO2023000069A1 - Dispositif de distribution de liquide, système et procédé de commande de la distribution du flux de liquide du moteur de véhicule de transport de passagers - Google Patents

Dispositif de distribution de liquide, système et procédé de commande de la distribution du flux de liquide du moteur de véhicule de transport de passagers Download PDF

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Publication number
WO2023000069A1
WO2023000069A1 PCT/BR2022/050287 BR2022050287W WO2023000069A1 WO 2023000069 A1 WO2023000069 A1 WO 2023000069A1 BR 2022050287 W BR2022050287 W BR 2022050287W WO 2023000069 A1 WO2023000069 A1 WO 2023000069A1
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WO
WIPO (PCT)
Prior art keywords
single block
vehicle
engine
thermal equipment
fluid
Prior art date
Application number
PCT/BR2022/050287
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English (en)
Portuguese (pt)
Inventor
Luciano Ricardo RESNER
César Ramos BROLIATO
Original Assignee
Marcopolo S.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Marcopolo S.A. filed Critical Marcopolo S.A.
Publication of WO2023000069A1 publication Critical patent/WO2023000069A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
    • B60H1/04—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant from cooling liquid of the plant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • 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
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves

Definitions

  • the present invention describes a vehicle engine coolant distribution device, a passenger transport vehicle engine fluid flow control and distribution system, a fluid flow control and distribution process of the passenger transport vehicle engine and a passenger transport vehicle provided with said fluid delivery device.
  • the present invention comprises a single block that associates all the thermal equipment of the vehicle that are fed by the engine coolant, said single block being positioned inside the vehicle's engine compartment, promoting agile and facilitated manufacturing and maintenance.
  • the present invention is in the fields of mechanical engineering, thermodynamics, and public transport vehicles.
  • Motor vehicles have an engine cooling system, where a fluid passes through the engine housing, removing heat and conducting it to another environment, generally dissipating this heat to the vehicle's external environment.
  • this heat can be used to promote the air conditioning of the vehicle's internal environment, heating the air, and it is also possible to use this heat to demist or defrost the windows when necessary.
  • Document CN113650475 discloses a method of controlling the temperature of a vehicle.
  • the high-temperature coolant flowing through the engine can be diverted through valves distributed throughout the system to the passenger compartment and window glass, promoting its heating through the diverted portion of engine coolant, so that the passenger compartment and window glass can be heated.
  • Document CN113650475 presents a heating system endowed with the common concept of the art, revealing the technical problems that the present invention allows to solve, since document CN113650475 makes use of a plurality of valves and equipment distributed by the engine compartment and the vehicle to power the passenger compartment heater and window glass, while the present invention makes it possible to unify the distribution and control of all this fluid power in a single device, optimizing the space inside the vehicle and further improving its manufacturing, assembly and maintenance process.
  • Document DE2714911A1 discloses a heating system for the upper and lower floors of a double-decker bus.
  • a bypass pipe between the radiator and gearbox leads to a lower saloon heat exchanger.
  • the radiator has a thermostatically controlled by-pass leading to the return flow.
  • the upper hall is equipped from another heat exchanger fed by a riser from the engine and circulated back to the return flow.
  • the present invention solves the problems of DE2714911A1, since this document makes use of a plurality of valves and equipment distributed by the engine compartment and the vehicle to promote the supply of the heater of the upper floor and the lower floor of the vehicle, making this supply separately, while the present invention makes it possible to unify the distribution and control of all this fluid supply in a single device, optimizing the space inside the vehicle and further improving its manufacturing, assembly and maintenance process.
  • Document JPS6085015 presents a solution for a bus heating unit that aims to increase the efficiency of hot water heating while reducing the size and weight of the heating unit.
  • the cooling water outlet of a main engine, a radiator and an auxiliary engine are connected in series to establish hot water channels through which cooling water flows from the auxiliary engine and returns to the main engine cooling water inlet.
  • a defroster circuit is provided which branches off from the hot water channel between the radiator and the auxiliary engine and is communicated to the main engine cooling water inlet via a solenoid valve and a defroster. When warming up the solenoid valve is opened to circulate engine cooling water through the radiator and defroster and then to the main engine.
  • the present invention solves the problems of JPS6085015, since this document makes use of a plurality of valves and equipment distributed by the engine bay and the vehicle to feed the bus defroster and defroster, making this feed separately, while the present invention makes it possible to unify the distribution and control of all this fluid supply in a single device, optimizing the space inside the vehicle and further improving its manufacturing, assembly and maintenance process. Furthermore, the present invention still differs from document JPS6085015 by not requiring the combination of a main engine with an auxiliary engine.
  • Document MU8900129-0 discloses a single-way valve for sending and returning fluid electrically and/or pneumatically operated, intended for application in motor vehicles to transfer coolant liquid from the engine, hot or cold, to the heating system in the vehicle's passenger compartment.
  • the MU8900129-0 valve can only power one piece of equipment at a time, thus requiring the use of one such valve for each vehicle's thermal equipment, thus increasing the space occupied within the engine bay.
  • the present invention solves the problems of MU8900129-0 by providing a single device that allows unifying the entire distribution and control of the engine coolant flow to feed the vehicle's thermal equipment, eliminating the need for a plurality of valves and promoting optimization of space inside the vehicle, mainly in the engine compartment, allowing for further improvement in its manufacturing, assembly and maintenance process.
  • the technique lacks a solution that promotes easier manufacturing and maintenance, that is, with reduced time and complexity, for the multiple components that distribute the engine cooling water to feed the thermal equipment along the vehicle body, unifying them in a single power distribution and control device.
  • the present invention solves the problems of the state of the art from a single heating distribution block, which it centralizes the entire flow and management of sending and returning coolant from the vehicle's engine and allows its distribution to components along the vehicle's bodywork, the single block being arranged inside the engine bay, promoting faster and easier manufacturing and maintenance and reducing the space taken up in the engine block to promote this power.
  • the present invention presents a device for distributing engine cooling fluid for a passenger transport vehicle, said device comprising a single block (1) associated with a passage for engine cooling fluid vehicle and communicating with at least one thermal equipment between: at least one convector; at least one defroster; or a combination of the foregoing; in which the single block (1) diverts a portion of cooling fluid to feed at least one thermal equipment of the vehicle and returns this fluid to the engine.
  • the present invention presents a system for controlling and distributing the engine fluid flow of a passenger transport vehicle comprising a single block (1) associated with a vehicle engine cooling fluid passage and communicating with at least one thermal equipment between: at least one convector; at least one defroster; or a combination of the above; wherein, the single block (1) comprises at least one valve (6) for each thermal equipment associated with the single block (1), each valve (6) associated with a control center of the system; and
  • valve (6) allows or prevents the single block (1) from diverting a portion of cooling fluid to feed at least one thermal equipment of the vehicle and returns this fluid to the engine depending on a signal from the system's control center.
  • the present invention presents a process for controlling and distributing the engine fluid flow of a passenger transport vehicle that comprises at least the fluid flow step vehicle engine cooling fluid through the interior of a single block (1) between an inlet (3) and an outlet (2), this flow communicating with at least one thermal equipment of the vehicle through said single block (1) .
  • the present invention presents a passenger transport vehicle comprising, within the engine compartment, a single block (1) of a vehicle engine coolant distribution device for at least one thermal equipment of the vehicle, said distribution device being as defined above.
  • Figure 1 shows an embodiment of the single block (1) of the present invention associated with a thermal equipment.
  • Figure 2 shows a rear view of the embodiment illustrated in figure 1.
  • Figure 3 shows a front view of the embodiment illustrated in figure 1.
  • Figure 4 shows an embodiment of the single block (1) of the present invention in association with two thermal equipment.
  • Figure 5 shows a rear view of the embodiment illustrated in figure 4.
  • Figure 6 shows a front view of the embodiment illustrated in figure 4.
  • Figure 7 shows an embodiment of the single block (1) of the present invention in association with three thermal equipment.
  • Figure 8 shows a rear view of the embodiment illustrated in figure 7.
  • Figure 9 shows a front view of the embodiment illustrated in figure 7.
  • the present invention solves the problems of the prior art related to the distribution of heating along the bodywork in passenger transport vehicles.
  • the present invention solves technical problems by means of a system equipped with a single block (1) that centralizes all the flow and distribution of the fluid that passes through the vehicle's engine next to the engine compartment, thus feeding thermal equipment, such as, for exemplifying purposes, convectors and defrosters, thus promoting the manufacture and maintenance of the system in a faster and easier way.
  • the present invention presents a device for distributing engine cooling fluid for a passenger transport vehicle, said device comprising a single block (1) associated with a passage for engine cooling fluid vehicle and communicating with at least one thermal equipment.
  • the thermal equipment to which the single block (1) is associated aims to promote the heating of at least one region or part of the vehicle.
  • the single block (1) diverts a portion of coolant to feed at least one thermal equipment of the vehicle and returns this fluid to the engine.
  • the single block (1) is associated with at least one convector.
  • the convector may receive other names in the technique, but promoting the same practical effect, it is a heating component of the vehicle, which aims to use the heat of the engine cooling fluid to heat the air in the passenger compartment of the vehicle, thus acclimatizing the environment. for a more comfortable temperature for passengers when heating is required.
  • the single block (1) is associated with at least one defroster.
  • the defroster may receive other names in the technique, but promoting the same practical effect, it is a component that aims to demist or defrost the glass of at least one window of the vehicle using the heat of the engine cooling fluid.
  • the single block (1) communicates with two or more thermal equipment of the vehicle, having any combination of convectors and defrosters, and may have more than one piece of equipment of each type and/or not have one piece of equipment among these cited, but a different one.
  • the vehicle to which the single block (1) is associated is a double-decker bus
  • the single block (1) is associated with a defroster, a lower floor convector and an iso convector higher.
  • the single block (1) comprises at least one inlet (3) for heated coolant, coming from the vehicle's engine, and comprises at least one main outlet (2) for coolant, which returns to the vehicle's engine .
  • the input (3) and the main output (2) are arranged on opposite sides of the single block (1).
  • the inlet (3) and the main outlet (2) are connected by means of hoses to the vehicle's engine and allow the passage of engine coolant.
  • the inlet (3) and the main outlet (2) comprise a shut-off valve each, which, when closed, prevent the passage of cooling fluid for the installation or maintenance of the other components of the single block (1) and the thermal equipment.
  • the single block (1) comprises at least one delivery channel (4) associated with thermal equipment, which conducts a portion of the heated engine coolant.
  • the single block (1) comprises at least one return channel (5) associated with the thermal equipment, which leads back to the single block (1) the portion of engine cooling fluid that was conducted through the channel of shipping (4), now this fluid has already cooled, after providing heat to the thermal equipment.
  • the single block (1) comprises at least one valve (6).
  • the valve (6) is arranged next to a pair of delivery channel (4) and return channel (5).
  • the present invention makes use of a pair of sending channel (4) and return channel (5) and a valve (6). In this way, power distribution and control are carried out independently for each thermal equipment, even if they are combined in a single device, reducing the space occupied in the vehicle and reducing the time of the assembly and maintenance process.
  • the single block (1) is arranged inside the engine bay, next to a conventional vehicle engine cooling system.
  • the single block (1) reduces the space occupied by the vehicle's heating and heating equipment.
  • the single block (1) allows a flow of coolant from the vehicle's engine inside it between the inlet (3) and the main outlet (2).
  • the valve (6) allows or prevents a part of the coolant flow between the outlet (2) and the inlet (3) to leave the single block (1) to access a thermal equipment through the delivery channel (4). Also, the valve (6) allows or prevents that part of the cooling fluid from returning from the thermal equipment through the return channel (5) and accessing the flow of fluid from the single block (1).
  • the valve (6) is a solenoid valve electronically commanded by a driver command and/or by a program that activates each valve (6) under predefined conditions.
  • the single block (1) comprises two forward channels (4) and two return channels (5), wherein each pair of forward channel (4) and return channel (5) is communicating with a different thermal equipment.
  • the single block (1) also comprises two valves (6), each valve (6) associated with a pair of sending (4) and return (5) channels and corresponding to a different thermal equipment.
  • the single block (1) comprises three forward channels (4) and three return channels (5), wherein each pair of forward channel (4) and return channel (5) is communicating with a different thermal equipment.
  • the single block (1) also comprises three valves (6), each valve (6) associated with a pair of sending (4) and return (5) channels and corresponding to a different thermal equipment.
  • the single block (1) of the device of the present invention further comprises at least one connection channel (8) with the vehicle's air conditioning equipment.
  • the single block (1) comprises the connection channel (8) with the vehicle's air conditioning heating system, to promote heating of the vehicle's internal environment where the passengers are.
  • the single block (1) further comprises an air bleeder (7) for purging unwanted air from the main fluid flow.
  • the present invention presents a system for controlling and distributing the engine fluid flow of a passenger transport vehicle comprising a single block (1) associated with a vehicle engine cooling fluid passage and communicating with at least one thermal equipment between: at least one convector; at least one defroster; or a combination of the above.
  • the single block (1) of the system of the present invention comprises at least one valve (6) for each thermal equipment associated with the single block (1), each valve (6) associated with a system control center.
  • the valve (6) allows or prevents the single block (1) from diverting a portion of cooling fluid to feed at least one thermal equipment of the vehicle and returns this fluid to the engine depending on a signal from the system's control center.
  • the valve (6) is a solenoid valve electronically commanded by a driver command and/or by a program that activates each valve (6) under predefined conditions.
  • the system's control center sends a signal to each valve (6) based on a command from a vehicle user.
  • the system control center sends a signal to each valve (6) according to predefined conditions for the system, and may also include sensors to monitor the internal temperature of the vehicle and/or the conditions of the glass of at least one window of the vehicle. vehicle and thus send a signal to the valves (6) to activate the vehicle's thermal equipment under predefined safety conditions.
  • the single block (1) comprises at least two or three valves (6), each valve (6) corresponding to a different thermal equipment, in which the system control center sends a signal to each valve ( 6) independently depending on the vehicle's need to use a thermal equipment or depending on the command of a vehicle user.
  • this comprises a pair of sending channel (4) and return channel (5) associated with a valve (6).
  • the system's control center sends a signal to the valve (6) so that it allows the passage of a portion of the engine's cooling fluid flow that passes through the single block (1) through the input (3) and the main output (2).
  • valve (6) When the valve (6) allows the passage of that portion of fluid, said portion leaves the single block (1) through the delivery channel (4), which is connected by hoses to a thermal equipment, which will make use of the heat from the coolant to heat the air in the passenger compartment and/or the glass of at least one window and then the coolant, after losing part of its heat, returns to the single block through the return channel (5), being returned to the main flow of fluid and leaving the single block (1) through the main output (2) to return to the vehicle's engine.
  • a thermal equipment which will make use of the heat from the coolant to heat the air in the passenger compartment and/or the glass of at least one window and then the coolant, after losing part of its heat, returns to the single block through the return channel (5), being returned to the main flow of fluid and leaving the single block (1) through the main output (2) to return to the vehicle's engine.
  • the single block (1) of the system of the present invention can be associated with a plurality of thermal equipment, always being associated with at least one thermal equipment and the vehicle's engine.
  • the single block comprises a valve (6) for each thermal equipment associated with the single block (1).
  • the single block (1) is associated with at least one convector.
  • the convector may receive other names in the technique, but promoting the same practical effect, it is a heating component of the vehicle, which aims to use the heat of the engine cooling fluid to heat the air in the passenger compartment of the vehicle, thus acclimatizing the environment. for a more comfortable temperature for passengers when heating is required.
  • the single block (1) is associated with at least one defroster.
  • the defroster may receive other names in the technique, but promoting the same practical effect, it is a component that aims to demist or defrost the glass of at least one window of the vehicle using the heat of the engine cooling fluid.
  • the system of the present invention further comprises, in its single block (1), at least one connection channel (8) with the heating system of the vehicle's air conditioner, to promote heating of the internal environment of the vehicle where the passengers are.
  • the present invention presents a process for controlling and distributing the engine fluid flow of a passenger transport vehicle that comprises at least the step of flow of engine coolant of the vehicle through the interior of a block single block (1), between an input (3) and an output (2) of said single block (1), this flow communicating with at least one thermal equipment of the vehicle through said single block (1).
  • the process of the present invention comprises, for each thermal equipment, the step of sending a portion of the cooling fluid through the single block (1) to a thermal equipment through a delivery channel (4), the flow of the fluid flow portion being regulated by a valve (6) associated with the single block (1).
  • the process of the present invention comprises, for each thermal equipment, the step of returning the portion of the cooling fluid of a thermal equipment through a return channel (5) of the single block (1), being the flow of the portion of the fluid flow regulated by the same valve (6) associated with the single block (1).
  • the process of the present invention uses a pair of forwarding channel (4) and return channel (5) associated with a valve (6) for each thermal equipment associated with the single block (1).
  • the process of the present invention allows carrying out the steps of sending a portion of the cooling fluid through the delivery channel (4) and returning the portion of the cooling fluid through the return channel (5) simultaneously, under the action of a single valve (6) for each pair of delivery (4) and return (5) channels, thus contributing to the compactness of the present invention, to the reduction of space occupied in the engine bay and to its ease of maintenance and installation.
  • each delivery channel (4) is associated with a convector and/or a defroster by means of hoses.
  • the cooled fluid returns from a convector through the return channel (5). In another embodiment, the cooled fluid returns from a deicer through the return channel (5).
  • the process of the present invention comprises a step of purging unwanted air from the fluid flow through an air vent (7).
  • the process of the present invention comprises a step of heating the vehicle's internal environment where the passengers are through the fluid flow of a communication between the single block (1) and an air conditioner of the vehicle, said communication takes place through at least one connection channel (8).
  • the process steps of the present invention are performed by a passenger transport vehicle engine water flow control and distribution system as defined above.
  • the present invention presents a passenger transport vehicle comprising, within the engine compartment, a single block (1) of a vehicle engine coolant distribution device for at least one thermal equipment of the vehicle, said distribution device being as defined above.
  • the vehicle of the present invention is a mass transit vehicle. In one embodiment, the vehicle of the present invention is at least one of: minibuses; single-decker buses; double-decker bus.
  • Example 1 - Single Block with One Heating Path the system of the present invention makes use of a single block (1) of one heating path, as illustrated by figures 1 to 3.
  • the entrance ( 3) is linked by a hose to the vehicle's engine and receives heated water.
  • the single block (1) makes use of an air bleeder (7) to bleed air from the flow.
  • the solenoid valve (6) is commanded to divert a portion of the heated water flow to a convector.
  • the cooled water returns to the main flow and leaves the single block (1) through the main outlet (2).
  • the single block (1) is not associated with the vehicle's air conditioning system.
  • the valve (6) can be controlled via buttons on the driver's panel and/or electronically via a preset program.
  • Example 2 Single Block with Two Heating Routes
  • the system of the present invention makes use of a single block (1) with two lanes of heating, as shown in figures 4 to 6.
  • the inlet (3) is linked by a hose to the vehicle's engine and receives heated water.
  • the single block (1) makes use of an air bleeder (7) to bleed air from the flow.
  • a first solenoid valve (6) is commanded to divert a portion of the heated water flow to a convector.
  • a second solenoid valve (6) is commanded to divert a portion of the heated water flow to a defroster.
  • the single block (1) is associated with the vehicle's air conditioning system by means of connection channels (8), so that the fluid heated by the engine heats the fluid that passes through the channels connection (8), thus promoting, through the air conditioner, the heating of the internal compartment of the vehicle where passengers stay. All chilled water returns to the main flow and leaves the single block (1) through the main outlet (2).
  • the valves (6) can be controlled using buttons on the driver's panel and/or electronically using a preset program.
  • Example 3 Single Block with Three Heating Routes
  • the system of the present invention makes use of a single block (1 ) with three heating channels, as shown in figures 7 to 9.
  • the inlet (3) is linked by a hose to the vehicle's engine and receives heated water.
  • the single block (1) makes use of an air bleeder (7) to bleed air from the flow.
  • a first solenoid valve (6) is commanded to divert a portion of the heated water flow to a convector on the first floor of the bus.
  • a second solenoid valve (6) is commanded to divert a portion of the heated water flow to a defroster.
  • a third solenoid valve (6) is commanded to divert a portion of the heated water flow to a second convector, on the second floor of the bus.
  • the single block (1) is associated with the vehicle's air conditioning system by means of connection channels (8), so that the fluid heated by the engine heats the fluid that passes through the channels of connection (8), thus promoting, through the air conditioner, the heating of the internal compartment of the vehicle where the passengers are. All chilled water returns to the main flow and leaves the single block (1) through the main outlet (2).
  • the valves (6) can be controlled using buttons on the driver's panel and/or electronically using a preset program.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Transportation (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

La présente invention concerne un dispositif de distribution de liquide de refroidissement du moteur d'un véhicule, un système de commande et de distribution du flux de liquide du moteur de véhicule de transport de passagers, un procédé de commande et de distribution du flux de liquide du moteur de véhicule de transport de passagers et un véhicule de transport de passager pourvu dudit dispositif de distribution de liquide. Spécifiquement, la présente invention comprend un bloc unique qui associe tous les équipements thermiques du véhicule qui sont alimentés par le liquide de refroidissement du moteur, ledit bloc unique étant placé à l'intérieur du coffre du moteur du véhicule, favorisant la fabrication et l'entretien facile et rapide. La présente invention relève des domaines de l'ingénierie mécanique, thermodynamique, et des véhicules de transport collectif.
PCT/BR2022/050287 2021-07-20 2022-07-20 Dispositif de distribution de liquide, système et procédé de commande de la distribution du flux de liquide du moteur de véhicule de transport de passagers WO2023000069A1 (fr)

Applications Claiming Priority (2)

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BR1020210143240 2021-07-20
BR102021014324A BR102021014324A2 (pt) 2021-07-20 2021-07-20 Sistema e processo de controle e distribuição do fluxo de fluido de motor e veículo de transporte de passageiros

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US20180147912A1 (en) * 2015-03-16 2018-05-31 Thunder Power New Energy Vehicle Development Company Limited Electric vehicle thermal management system
US20180236843A1 (en) * 2017-02-23 2018-08-23 Mahle International Gmbh Multi-mode cabin heating system with dual heating source
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