EP4448331A1 - System zur temperierung von kraftfahrzeugsitzen - Google Patents
System zur temperierung von kraftfahrzeugsitzenInfo
- Publication number
- EP4448331A1 EP4448331A1 EP22817896.8A EP22817896A EP4448331A1 EP 4448331 A1 EP4448331 A1 EP 4448331A1 EP 22817896 A EP22817896 A EP 22817896A EP 4448331 A1 EP4448331 A1 EP 4448331A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- motor vehicle
- fluid
- line
- vehicle seat
- seat
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/56—Heating or ventilating devices
- B60N2/5607—Heating or ventilating devices characterised by convection
- B60N2/5614—Heating or ventilating devices characterised by convection by liquid
-
- 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 devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H1/00278—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
-
- 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 devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H1/00285—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for vehicle seats
-
- 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 devices
- B60H1/02—Heating, cooling or ventilating devices the heat being derived from the propulsion plant
- B60H1/14—Heating, cooling or ventilating devices the heat being derived from the propulsion plant other than from cooling liquid of the plant
- B60H1/143—Heating, cooling or ventilating devices the heat being derived from the propulsion plant other than from cooling liquid of the plant the heat being derived from cooling an electric component, e.g. electric motors, electric circuits, fuel cells or batteries
-
- 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 devices
- B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
- B60H2001/00307—Component temperature regulation using a liquid flow
Definitions
- the present development relates to a system for temperature control, in particular for heating and/or cooling motor vehicle seats in a motor vehicle.
- the development relates to a motor vehicle equipped with such a system and a method for controlling the temperature of motor vehicle seats.
- Current seat heaters typically provide one or more electrical heating elements that are integrated into the seat structure.
- DE 102009 015 966 A1 discloses a seat temperature control system with a temperature-controlled seat for use in a motor vehicle.
- the seat may include a seat bottom, a seat back, and an air conditioning system.
- the seat bottom thereby includes a bottom heat exchange fluid coil configured to pass a cooling fluid therethrough from a bottom inlet end to a bottom outlet end.
- the cooling fluid is here from an air conditioning system to the pipe coils supplied.
- the present development is based on the task of providing an energy-saving system for temperature control of motor vehicle seats that is as easy to implement as possible.
- This should be as universal as possible, in particular usable for seat heating as well as for seat cooling.
- the system should be particularly suitable for implementation in electrically operated motor vehicles.
- a system for controlling the temperature of motor vehicle seats comprises a fluid-carrying circuit with at least one line carrying a liquid heat transfer medium.
- the line runs at least in sections through a region of a motor vehicle seat.
- the system also has a heat exchanger which is thermally coupled to the fluid-carrying circuit and to a motor vehicle battery.
- the motor vehicle battery can in particular be a traction battery of an electrically operated motor vehicle or a battery of a hybrid vehicle.
- the heat exchanger and its thermal coupling make it possible to use thermal energy that is released or used in the area of the motor vehicle battery to control the temperature of a motor vehicle seat.
- Motor vehicle batteries in particular traction batteries, typically require operation within a predetermined temperature window, which can typically be in the range of the interior temperature to be provided for the vehicle passengers. When the outside temperatures are cold, it is typically intended to actively heat the motor vehicle battery. When the motor vehicle is in operation, a certain amount of waste heat can also be generated in the area of the motor vehicle battery. At particularly high outside temperatures, it may be necessary to actively cool the motor vehicle battery. In this respect, a certain heating or cooling capacity is already available for the motor vehicle battery on the motor vehicle side.
- a motor vehicle seat can be cooled and/or heated as required by its direct or indirect thermal coupling to the motor vehicle battery.
- the thermal coupling between the motor vehicle battery, in particular a traction battery, and the motor vehicle seat has proven to be advantageous, since during operation of the vehicle or when charging the motor vehicle battery in the area of the motor vehicle battery, temperatures prevail or are provided that are comparable to or in the range of a temperature typically desired by the end user of motor vehicle seats.
- the fluid-carrying circuit which is thermally coupled either directly or indirectly to the motor vehicle battery by means of the heat exchanger and is also thermally coupled to the motor vehicle seat, enables a needs-based heating and cooling of the motor vehicle seat.
- the system for controlling the temperature of the at least one motor vehicle seat has at least one circulating pump that can be regulated in terms of its delivery rate.
- the circulating pump is designed to regulate the volume flow of the heat transfer medium in the line of the fluid-carrying circuit.
- the volume flow in the fluid-carrying circuit can be regulated and adjusted as needed using the circulation pump in order to provide a required thermal energy transfer from the motor vehicle battery to the motor vehicle seat, for example depending on the respective temperature level of the heat transfer medium.
- the circulating pump can be controlled by an electronic controller in order to regulate the volume flow of the heat transfer medium as required, for example as a function of sensor signals or user commands.
- the fluid-carrying circuit of the system provided here has a compensating tank connected to the line, for example to regulate the amount of heat transfer medium circulating in the fluid-carrying circuit.
- a compensating tank is particularly advantageous in order to keep the pressure in the fluid-carrying line within specified limits. This can be advantageous in particular in the case of changing boundary conditions, for example for the cooling and/or for the heating of the motor vehicle seat.
- the fluid-carrying circuit has an additional heating element.
- the additional heating element can in particular be electric be configured operable additional heating element. Electrical energy for operating the additional heating element can be made available, for example, by the motor vehicle battery.
- the additional heating element can also be coupled to a controller. In this way, the controller can be designed in particular for needs-based regulation and activation of the additional heating element. In this way, a different temperature of the heat transfer medium in the fluid-carrying circuit can also be set or realized independently of the heat or cold reservoir provided by the motor vehicle battery.
- the additional heating element has an electric heating device, a heat pump or a thermal coupling with an interior heating system of the motor vehicle.
- the electrical heating device can be implemented in particular as an electrical water heater.
- the electrical heating device can also have one or more Peltier elements, by means of which electrical energy can be converted into thermal energy.
- the fluid-carrying circuit has an additional cooling element which is thermally coupled to the line of the fluid-carrying circuit.
- the additional cooling element can also be implemented as an electrical cooling element.
- it can have one or more Peltier elements or a heat pump. If a heat pump or a Peltier element is implemented, the corresponding electrical component can be used both as an additional heating element and as an additional cooling element. The outlay in terms of equipment for realizing a needs-based additional heating and/or additional cooling can be minimized in this way.
- the additional cooling element has an electric Cooling device, a heat pump or a thermal coupling with a motor vehicle air conditioning system.
- the additional cooling element can be thermally coupled to an evaporator and/or to a low-pressure side of an air conditioning circuit of the motor vehicle.
- the additional cooling element can be designed as a Peltier element, for example, or have a heat pump.
- the fluid-carrying circuit has a main line and a secondary line branching off from it.
- the main line is thermally coupled to the heat exchanger and the secondary line is thermally coupled to the area of the motor vehicle seat.
- the two strands branch off from each other and possibly also flow into one another again.
- the heat transfer medium flowing through the secondary line can be branched off from the heat transfer medium flowing through the main line.
- the branch can in particular be designed to be dynamically regulating.
- a control valve can thus be implemented on or in the branch of the main and/or secondary line, by means of which the volume flow can be regulated in particular in the secondary line.
- the circulating pump is typically arranged in the main line, from which the secondary line branches off.
- the secondary line branches off from the main line via a controllable three-way or multi-way valve.
- the volume flow in the area of the secondary line can be regulated and controlled as required using the valve.
- the volume flow of the heat transfer medium flowing through the fluid-carrying circuit, in particular in the area of the motor vehicle seat can also be adjusted and/or regulated as required, independently of the delivery rate or in addition to the delivery rate of the circulation pump.
- the heat exchanger of the system described here is thermally coupled to the motor vehicle battery. It can be thermally coupled directly to the motor vehicle battery or indirectly coupled to the motor vehicle battery.
- the heat exchanger can be connected, for example, in or on a battery housing and to that extent in the Motor vehicle battery to be integrated.
- the heat exchanger can be implemented anywhere in a battery cooling or battery temperature control circuit.
- the heat exchanger can be implemented in particular as a so-called chiller.
- the heat exchanger can also be implemented as a liquid-liquid heat exchanger.
- the system has a controller, in particular an electronic controller, by means of which a thermal energy input into the area of the motor vehicle seat can be regulated or controlled.
- the controller can be activated or controlled directly or indirectly by a user of the motor vehicle.
- the controller can also be provided with one or more sensors that measure, for example, the temperature in the vehicle interior and/or in the area of the vehicle battery.
- the controller can typically be connected to at least one or more of the components of the system described here in terms of data technology, i. H. be coupled to control: circulating pump, three-way or multi-way valve, additional heating element and additional cooling element.
- the present disclosure relates to a motor vehicle with at least one motor vehicle seat and with a motor vehicle battery, typically with a traction battery.
- the motor vehicle also includes a previously described system for controlling the temperature of at least one motor vehicle seat.
- at least in the area of the motor vehicle seat typically the area of a seat surface and/or the area of a seat backrest can be thermally coupled to the motor vehicle battery.
- an at least temporary or also permanent thermal coupling can be provided and implemented between the motor vehicle battery and the area or partial area of a motor vehicle seat.
- the present disclosure relates to a method for controlling the temperature of a motor vehicle seat of a motor vehicle.
- the method uses a previously described system for controlling the temperature of at least one motor vehicle seat. Released at the vehicle battery or released thermal energy is used for temperature control of the motor vehicle seat or several motor vehicle seats. This can be done in a variety of ways.
- thermal energy that is released in the area of the motor vehicle battery or is actively generated for example by battery cooling or battery heating
- the thermal energy occurring in the area of the motor vehicle battery typically in the form of thermal heating power or thermal cooling power occurring there, can be transferred via the fluid-carrying circuit and the heat exchanger to the area of the motor vehicle seat.
- waste heat produced in the course of charging the motor vehicle battery in the area of the motor vehicle battery is used for heating or preheating the motor vehicle seat. This is particularly advantageous in situations when the prevailing outside temperatures make seat heating necessary. In this way, the motor vehicle seat and/or the motor vehicle interior can be preheated while the battery is being charged, for example before the start of a journey.
- the waste heat produced in the area of the motor vehicle battery when the motor vehicle is in operation is used to heat the motor vehicle seats.
- the thermal energy released in the area of the motor vehicle battery can be used effectively for seat heating.
- the thermal cooling energy released there in the area of the motor vehicle battery can be transferred to the area of the motor vehicle seat by means of the heat exchanger and the fluid-carrying circuit. In this way, a particularly simple and elegant temperature control of the motor vehicle seat, namely cooling of the motor vehicle seat, can be achieved.
- FIG. 1 shows a schematic side view of a motor vehicle
- FIG. 2 shows a block diagram of the system for controlling the temperature of at least one motor vehicle seat
- FIG. 3 shows a further exemplary embodiment of the system according to FIG. 2,
- Fig. 4 shows another embodiment of the system for temperature control of a motor vehicle seat
- FIG. 5 shows a flow chart of the method for temperature control of the motor vehicle seat.
- the motor vehicle 1 shown in FIG. 1 has a motor vehicle body 2 with an interior 3 functioning as a passenger cell. One or more motor vehicle seats 6 are arranged in the interior 3 .
- the motor vehicle 1 also has a drive 4. This can be configured as an electric drive, for example.
- the motor vehicle 1 has a motor vehicle battery 30. This can be arranged, for example, in the floor area, for example below the motor vehicle interior 3.
- the motor vehicle battery 30 can be implemented in particular as a traction battery in order to provide the electrical power required for the drive 4 .
- the motor vehicle battery 30 For the operation of the motor vehicle 1, it may be necessary to keep the motor vehicle battery 30 within a predetermined temperature range. For example, when the outside temperature is particularly low, it may be necessary to actively heat the motor vehicle battery. In the case of particularly high outside temperatures or when the battery 30 is subject to high stress, it may be necessary to cool the motor vehicle battery 30 .
- the thermal conditions prevailing in the area of the motor vehicle battery 30 can be transferred to the area of a motor vehicle seat 6 in a particularly efficient and energy-saving manner using a system 9 for air conditioning a motor vehicle seat 6 .
- the system 9 shown in FIGS. 1 to 4 has a fluid-carrying circuit
- a heat transfer medium for example water mixed with an antifreeze, flows through the fluid-carrying line 12 .
- the fluid-carrying circuit 10, and consequently its line 12 is thermally coupled to a region 7, 8 of the motor vehicle seat 6, at least in sections.
- Motor vehicle seat 6 can have different areas 7, 8, which can be implemented, for example, as a seat surface or seat cushion, or as a seat back.
- the fluid-carrying line 12 can, for example, meander through the corresponding areas 7, 8 of the motor vehicle seat.
- the circuit 10 shown for example in FIG. 2 has a main line 11 and a secondary line 13 and a further secondary line 15 .
- the main line 11 and a secondary line 13 and a further secondary line 15 are connected in the main line
- a circulation pump 17 and an expansion tank 14 for the liquid heat transfer medium are also located in the main line 11 .
- a heat exchanger 20 is also located in the main line 11 . This can be directly thermally coupled to the motor vehicle battery 30.
- the heat exchanger 20 can be integrated in the motor vehicle battery 30 in particular.
- the main line 11 has an optional additional heating 16 or an optional additional cooling 18 .
- additional heating 16 or additional cooling 18 the same but also differently implemented electric heating and/or cooling elements can be provided and implemented. If a heat pump is implemented or if a Peltier element is provided, the electrical component provided accordingly can be tailored to requirements act as both a heating element and a cooling element.
- the additional heating element 16 or the additional cooling element 18 as well as the circulating pump 17 can be data-technically coupled to a controller 50 .
- the controller 50 can be designed in particular to control and to regulate the power both of the circulating pump 17 and of the additional heating element 16 and/or the additional cooling element 18 .
- the controller 50 can also be coupled to one or more temperature sensors, for example in order to carry out automatic, self-regulating cooling or heating of the motor vehicle seat 6 .
- the sections of the circuit 10 running through the area 7 , 8 of the motor vehicle seat 6 , and thus the secondary line 13 , can branch off from the main line 11 via a three-way or multi-way valve 22 .
- the three-way or multi-way valve 22 can also be connected to the controller 50 for control purposes, so that the controller 50 can control the three-way or multi-way valve 22 as required.
- a controllable three-way or multi-way valve 22 can be used to regulate the distribution of the volume flow of the heat transfer medium flowing through the main line 11 into downstream areas of the circuit 10, in particular in the secondary line 13 provided in the area of the motor vehicle seat 6. The thermal energy provided in the area of the motor vehicle seat 6 can thus be regulated and adjusted as required.
- the other auxiliary line 15 is coupled to a motor vehicle air conditioning system 40 .
- This can have, for example, a cooling unit or a heating unit or a motor vehicle air conditioning system.
- the additional secondary line 15 can also be connected to the main line 11 via a two-way, three-way or multi-way valve (not shown here).
- the main line 11 also has an expansion tank 14. This enables a constant pressure level to be maintained in the circuit 10.
- FIG. 2 shows in particular a state of the system 9 in which the motor vehicle battery 30 is being charged.
- An inverter 21 or a A corresponding converter for the electrical current provided by a charging station can generate waste heat.
- This waste heat can be fed into the main line 11 of the circuit 10 in particular by means of the heat exchanger 20 .
- the thermal energy generated or released in this way and in the area of the heat exchanger 20, in particular in the area of the inverter 21, can be used by means of the circulation pump 17 to heat the heat transfer medium circulating through the circuit 11.
- the auxiliary line 13 can then be charged with the warmed-up heat transfer medium by means of the controller 50, so that the motor vehicle seat 6 can be heated.
- seat heating and the associated pre-temperature control of the interior 3 of the motor vehicle 1 can be achieved.
- FIG. 3 shows a configuration in which the motor vehicle is in driving mode.
- thermal energy released in the area of the motor vehicle battery 30 can be released to the fluid-carrying circuit 10 by means of the heat exchanger 20 and finally transferred to the motor vehicle seat 6 or transferred to this area.
- effective seat heating can take place when the motor vehicle 1 is in operation.
- the motor vehicle seat 6 can also be actively cooled via the auxiliary line 15 and the motor vehicle air conditioning system 40 provided there.
- Corresponding control or regulating valves in the area of the main line 11 and/or in the area of the secondary line 15 are not explicitly shown here.
- a corresponding valve can be provided at the junction of the main line 11 and the secondary line 15 and implemented accordingly.
- the motor vehicle battery 30 can be connected to a motor vehicle air conditioning system 40, for example to an air conditioning system, for example via a separate heat exchanger that is not explicitly shown here.
- the motor vehicle air conditioning system 40 can be thermally coupled to the circuit 10 provided here via the heat exchanger 20 . In this way, an indirect thermal coupling between the circuit 10 and the motor vehicle battery 30 can be implemented.
- cooling or heating of the motor vehicle seat 6 can be implemented as required.
- a desired temperature in the circuit 10, in particular in the main line 11 and thus also in the secondary line 13 for the motor vehicle seat 6, can be set and realized by means of the additional heating element 16 and/or by means of the additional cooling element 18 become.
- a first step 100 for the thermal energy released in the area of the motor vehicle battery 30 to be fed into the fluid-carrying circuit 10 .
- that thermal energy can be transferred to the area of the secondary line 13 by circulating the heat transfer medium in the fluid-carrying circuit 10 .
- thermal energy can be released from the heat transfer medium flowing in the area of the motor vehicle seat 6 to the area 7, 8 of the motor vehicle seat 6 to be temperature-controlled.
- the method steps 100, 102, 104 shown sequentially in the flow chart of FIG. 5 naturally take place continuously and simultaneously.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Power Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021214536.1A DE102021214536A1 (de) | 2021-12-16 | 2021-12-16 | System zur Temperierung von Kraftfahrzeugsitzen |
| PCT/EP2022/081549 WO2023110240A1 (de) | 2021-12-16 | 2022-11-10 | System zur temperierung von kraftfahrzeugsitzen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4448331A1 true EP4448331A1 (de) | 2024-10-23 |
Family
ID=84389290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22817896.8A Withdrawn EP4448331A1 (de) | 2021-12-16 | 2022-11-10 | System zur temperierung von kraftfahrzeugsitzen |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4448331A1 (de) |
| DE (1) | DE102021214536A1 (de) |
| WO (1) | WO2023110240A1 (de) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19645544C2 (de) | 1996-11-05 | 2000-09-28 | Webasto Thermosysteme Gmbh | Klimatisierbarer Fahrzeugsitz |
| FR2782788B1 (fr) * | 1998-08-31 | 2001-02-23 | Armines Ass Pour La Rech Et Le | Echangeur souple a effet caloduc associe a des circuits caloporteurs |
| WO2008148042A2 (en) * | 2007-05-25 | 2008-12-04 | Bsst Llc | System and method for distributed thermoelectric heating and colling |
| US7950735B2 (en) | 2008-04-07 | 2011-05-31 | GM Global Technology Operations LLC | Temperature controlled vehicle seats |
| DE102008044169A1 (de) | 2008-11-28 | 2010-06-02 | Robert Bosch Gmbh | Batteriemodul |
| KR20110131885A (ko) * | 2010-06-01 | 2011-12-07 | 한라공조주식회사 | 차량용 시트 공조 장치 |
| US20120079837A1 (en) * | 2011-12-08 | 2012-04-05 | Ford Global Technologies, Llc | Thermoelectric Comfort Control System for Motor Vehicle |
| DE102014202006A1 (de) | 2014-02-05 | 2015-08-06 | Hossein Soltanmoradi | Vorrichtung zur Klimatisierung von Fahrzeugen und/oder Fahrzeugteilen |
| CN113276744A (zh) | 2021-05-28 | 2021-08-20 | 华为技术有限公司 | 一种热管理系统及电动车 |
-
2021
- 2021-12-16 DE DE102021214536.1A patent/DE102021214536A1/de active Pending
-
2022
- 2022-11-10 WO PCT/EP2022/081549 patent/WO2023110240A1/de not_active Ceased
- 2022-11-10 EP EP22817896.8A patent/EP4448331A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| DE102021214536A1 (de) | 2023-06-22 |
| WO2023110240A1 (de) | 2023-06-22 |
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