CN115817303A - Automobile seat temperature adjusting and controlling system and method - Google Patents

Automobile seat temperature adjusting and controlling system and method Download PDF

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Publication number
CN115817303A
CN115817303A CN202211693369.6A CN202211693369A CN115817303A CN 115817303 A CN115817303 A CN 115817303A CN 202211693369 A CN202211693369 A CN 202211693369A CN 115817303 A CN115817303 A CN 115817303A
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China
Prior art keywords
seat
temperature
management controller
heating
heat exchanger
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CN202211693369.6A
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Chinese (zh)
Inventor
曹龙龙
姚翠平
程翠锋
欧明武
田始威
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China National Heavy Duty Truck Group Jinan Power Co Ltd
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China National Heavy Duty Truck Group Jinan Power Co Ltd
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Priority to CN202211693369.6A priority Critical patent/CN115817303A/en
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses

Abstract

The invention belongs to the technical field of automobile seat temperature control, and particularly provides an automobile seat temperature regulation control system and method, wherein the system comprises a main driving seat core, a secondary driving seat core and a rear seat core which are connected in parallel, wherein one end of the main driving seat core is connected to a refrigerating mechanism through an electronic water pump, and the other end of the main driving seat core is connected to a heating mechanism through a second flow control valve; the refrigerating mechanism is connected with the heating mechanism; the system also comprises a thermal management controller, and a main driving seat temperature sensor, an auxiliary driving seat temperature sensor, a rear row seat temperature sensor, an environment temperature sensor, an illumination intensity sensor, an indoor temperature sensor, a central control screen, an engine EMS and a refrigeration mechanism pressure temperature sensor which are connected with the thermal management controller; the refrigerating mechanism and the heating mechanism are respectively connected with the heat management controller, and the heat management controller controls the refrigerating mechanism or the heating mechanism to work according to information collected by the connected sensors. The seat temperature is kept within the target temperature range, and the riding comfort of passengers is improved.

Description

Automobile seat temperature adjusting and controlling system and method
Technical Field
The invention relates to the technical field of automobile seat temperature control, in particular to an automobile seat temperature adjusting and controlling system and method.
Background
Along with the development of social economy, tools for riding instead of walk are more and more abundant, wherein the popular vehicles belong to, and the brands of the vehicles are many, and along with the continuous improvement of the living standard of people, the requirement of the public on the riding comfort of the vehicles is higher and higher. The overall structure of the automobile is quite different, the largest part in the automobile is a seat for a driver or a passenger to sit, and the parts can be roughly divided into: a front row seat: headrest, back, cushion, back row seat: headrest, back, cushion, flank. The seat acts as a carrier for the occupant in direct contact with the vehicle, the surface temperature of which directly determines the comfort of the occupant.
At present, mainstream motorcycle type on the market, seat cooling mainly realize through seat ventilation function, and this kind of mode can not initiatively reduce the seat temperature, but forms the convection current through blowing and takes away the heat on the seat and realize the cooling, and the seat temperature is uncontrollable, and cooling speed is slow, and the cooling effect is not obvious to the air current blows on the health, also influences driver and crew's travelling comfort. Seat heating is mainly realized through the built-in heating resistance line of seat, has certain electric leakage risk of catching fire.
This is a disadvantage of the prior art, and therefore, in view of the above-mentioned disadvantages of the prior art, it is necessary to develop a seat temperature adjusting system that is safe and can actively adjust the temperature of the seat surface.
Disclosure of Invention
The mainstream motorcycle type on the market, the seat cooling is mainly realized through seat ventilation function, and this kind of mode can not initiatively reduce the seat temperature, but forms the convection current through blowing and takes away the heat on the seat and realize the cooling, and the seat temperature is uncontrollable, and the cooling speed is slow, and the cooling effect is not obvious to the air current blows on the health, also influences driver and crew's travelling comfort. The invention provides a system and a method for adjusting and controlling the temperature of an automobile seat.
In a first aspect, the invention provides an automobile seat temperature regulation control system, which comprises a refrigerating mechanism, a heating mechanism, a main driving seat core, a secondary driving seat core and a rear seat core;
the main driving seat core, the auxiliary driving seat core and the rear row seat core are connected in parallel, one end of the main driving seat core, the auxiliary driving seat core and the rear row seat core are connected to the refrigerating mechanism through the electronic water pump, and the other end of the main driving seat core, the auxiliary driving seat core and the rear row seat core are connected to the heating mechanism through the second flow control valve;
the refrigerating mechanism is connected with the heating mechanism;
the system also comprises a thermal management controller, and a main driving seat temperature sensor, an auxiliary driving seat temperature sensor, a rear row seat temperature sensor, an environment temperature sensor, an illumination intensity sensor, an indoor temperature sensor, a central control screen, an engine EMS and a refrigeration mechanism pressure temperature sensor which are connected with the thermal management controller;
the refrigerating mechanism and the heating mechanism are respectively connected with the heat management controller, and the heat management controller controls the refrigerating mechanism or the heating mechanism to work according to information collected by the connected sensors.
Preferably, the refrigerating mechanism comprises a seat refrigerating heat exchanger, a refrigerant side inlet end of the seat refrigerating heat exchanger is connected with an outlet end of a second electronic expansion valve, the refrigerant side outlet end of the seat refrigerating heat exchanger is connected with an air inlet end of a variable displacement compressor, the inlet end of the second electronic expansion valve is connected with an outlet end of a liquid storage dryer, the outlet end of the liquid storage dryer is further connected with an inlet end of a passenger cabin evaporator through a first electronic expansion valve, the outlet end of the passenger cabin evaporator is connected with the air inlet end of the variable displacement compressor, the air outlet end of the variable displacement compressor is connected with the inlet end of a condenser, and the outlet end of the condenser is connected with the inlet end of the liquid storage dryer;
the cooling liquid side inlet end of the seat refrigeration heat exchanger is connected with the outlet end of the electronic water pump, and the cooling liquid side outlet end of the seat refrigeration heat exchanger is connected with the inlet end of the heating mechanism.
Preferably, the heating mechanism comprises a seat heating heat exchanger, the heat source side inlet end of the seat heating heat exchanger is connected with a first flow control valve outlet end, the heat source side outlet end of the seat heating heat exchanger is connected with an engine warm air water return port, the first flow control valve outlet end is connected with the engine warm air water return port through a passenger cabin warm air core body, the seat heating heat exchanger seat temperature regulation loop side outlet end is connected with a second flow control valve inlet end, the second flow control valve outlet end is respectively connected with the main driving seat core body, the auxiliary driving seat core body and the rear row seat core body, and the seat refrigerating heat exchanger coolant side outlet end is connected with the seat heating heat exchanger seat heating loop side inlet end.
As the optimization of the technical scheme of the invention, the variable displacement compressor is arranged on a bracket of an engine body and is used for compressing low-temperature and low-pressure gaseous refrigerant entering the variable displacement compressor into high-temperature and high-pressure gaseous refrigerant and discharging the gaseous refrigerant;
the condenser is arranged at the front end of the engine compartment close to the air inlet grille and is used for condensing high-temperature and high-pressure gaseous refrigerant discharged by the variable displacement compressor into medium-temperature and high-pressure liquid refrigerant;
the liquid storage dryer is arranged near or integrated on the condenser and used for storing redundant refrigerant in the air conditioning system and removing impurities and moisture in the refrigerant;
the first electronic expansion valve is arranged on a passenger compartment refrigeration branch of a condenser liquid outlet pipeline in the engine compartment and used for reducing pressure and throttling, and meanwhile, the opening degree is adjusted by receiving an instruction of the thermal management controller, so that the adjustment of the refrigerant flow of the passenger compartment refrigeration branch is realized;
the second electronic expansion valve is arranged on a seat refrigeration branch of a condenser liquid outlet pipeline in the engine compartment, is used for reducing pressure and throttling, and meanwhile receives an instruction of the thermal management controller to adjust the opening degree, so that the adjustment of the refrigerant flow of the seat refrigeration branch is realized;
the passenger compartment evaporator is arranged in the passenger compartment instrument desk and used for evaporating the low-temperature low-pressure liquid refrigerant throttled by the first electronic expansion valve into a gaseous refrigerant;
the seat refrigeration heat exchanger is arranged in the engine compartment and used for exchanging heat with the low-temperature refrigerant through the cooling liquid in the seat refrigeration heat exchanger to realize cooling of the cooling liquid.
Preferably, the engine is assembled on a vehicle body or a chassis frame through a suspension rubber block and is used for providing a heat source for heating a passenger compartment and a seat;
the first flow control valve is arranged in a heat source side loop in the engine compartment and used for receiving an instruction of the thermal management controller to adjust the flow of the cooling liquid of each branch;
the passenger cabin warm air core body is arranged in the passenger cabin instrument desk and used for realizing the heating of air by carrying out heat exchange on the air flowing through the surface of the passenger cabin warm air core body and high-temperature cooling liquid flowing through the passenger cabin warm air core body;
the seat heating heat exchanger is arranged in the engine compartment and used for exchanging heat between the cooling liquid in the seat heating loop inside the seat heating heat exchanger and the high-temperature cooling liquid in the heat source side loop to realize temperature rise of the cooling liquid.
As the optimization of the technical scheme of the invention, the main driving seat core body, the auxiliary driving seat core body and the rear row seat core body are respectively arranged in the corresponding seats and used for realizing the temperature rise or reduction of the seat cushions of the seats by carrying out heat exchange on cooling liquid in each core body and the surrounding environment of the seat cushions of the seats;
the electronic water pump is arranged in a seat temperature adjusting loop in the cabin and used for providing power for circulation of cooling liquid in the loop and receiving an instruction of the thermal management controller to adjust the flow of the cooling liquid in the loop;
and the second flow control valve is arranged in the seat regulating loop in the engine compartment and used for receiving the instruction of the thermal management controller to regulate the flow of the cooling liquid of each seat branch in the seat temperature regulating loop.
Preferably, the main driving seat temperature sensor, the auxiliary driving seat temperature sensor and the rear-row seat temperature sensor are respectively arranged in corresponding seat cushions and used for acquiring the temperatures of the corresponding seat cushions and inputting the information to the thermal management controller;
the environment temperature sensor is arranged on a front grille of the vehicle and used for collecting environment temperature information and inputting the information to the heat management controller;
the illumination intensity sensor is arranged on the upper part of the front windshield and used for collecting illumination intensity information and inputting the information to the thermal management controller;
the indoor temperature sensor is arranged on the right side of a main driver of an instrument desk of the passenger compartment and used for collecting temperature information in the passenger compartment and inputting the information to the heat management controller;
the refrigerating mechanism pressure temperature sensor comprises a passenger cabin evaporator outlet pressure temperature sensor and a seat refrigerating heat exchanger outlet pressure temperature sensor;
the passenger cabin evaporator outlet pressure temperature sensor is arranged at an outlet of a passenger cabin evaporator pipeline in the cabin, and is used for acquiring the pressure and temperature of a refrigerant at the outlet of the passenger cabin evaporator of the passenger cabin refrigeration branch and inputting information to the heat management controller;
the seat refrigeration heat exchanger outlet pressure temperature sensor is arranged at a seat refrigeration heat exchanger refrigerant side outlet and is used for collecting the pressure and the temperature of a refrigerant at the seat refrigeration heat exchanger refrigerant side outlet and inputting the pressure and the temperature to the heat management controller;
the central control screen is arranged in the middle of the instrument desk of the passenger compartment and used for acquiring temperature regulation information of the seats of passengers and inputting the temperature regulation information to the heat management controller;
the engine EMS is arranged in the engine compartment and used for acquiring the rotating speed and the speed of the engine and inputting information to the thermal management controller.
In a second aspect, the invention provides a method for adjusting and controlling the temperature of an automobile seat, the method comprises the following steps:
when the seat needs to be cooled, the variable displacement compressor and the electronic water pump are started, the first flow control valve is controlled to close the flow of the heat source side of the seat heating heat exchanger, the displacement of the variable displacement compressor and the opening of the second electronic expansion valve are adjusted according to the seat cooling requirement, cooling liquid in the seat temperature adjusting loop is cooled in the seat cooling heat exchanger, and the cooled cooling liquid is distributed to the main driving seat core, the auxiliary driving seat core and the rear row seat core through the second flow control valve, so that the seat is cooled;
when the seat needs to be heated, the electronic water pump is started, the opening degree of the first flow control valve is controlled according to the seat heating requirement to adjust the heat source side flow of the seat heating heat exchanger, the cooling liquid in the seat temperature adjusting loop is heated in the seat heating heat exchanger, and the heated cooling liquid is distributed to the main driving seat core body, the auxiliary driving seat core body and the rear-row seat core body through the second flow control valve, so that the seat heating is realized.
Preferably, the method further comprises:
when the engine of the vehicle is in a running state and the temperature of the seats of the vehicle is required to be adjusted, the heat management controller acquires the set temperature TS of each seat i Actual temperature TZ of each seat cushion i Ambient temperature T OUT Temperature T in vehicle IN Illumination intensity and engine speed r;
when the maximum difference T0 between the set temperature of each seat and the actual temperature of the seat cushion is less than or equal to MAX { TZ i -TS i When the } is less than or equal to T1, no response is carried out;
when the actual temperature TZ of each seat cushion i And the seat set temperature TS i Maximum difference MAX { TZ i -TS i When the rate is larger than T1, the heat management controller starts the electronic water pump, adjusts the flow of each branch connected with the second flow control valve, and simultaneously adjusts the running state of the variable displacement compressor;
when the actual temperature TZ of each seat cushion i And the seat set temperature TS i Maximum difference MAX { TZ i -TS i When the rate is less than T0, the heat management controller starts the electronic water pump, adjusts the flow of each branch of the second flow control valve, and simultaneously adjusts the flow of each branch of the first flow control valve, and the ratio of the passenger compartment heating branch to the seat heating branch is as follows: QR1: QR2, wherein QR1 is the heat required for heating the passenger compartment, and QR1 is the ambient temperature T OUT Indoor temperature T IN Function of vehicle speed v, i.e. QR1= f (T) OUT ，T IN V), QR2 is the heat quantity required for heating the seat, and QR2 is the actual temperature TZ of each seat cushion i And the seat set temperature TS i Maximum difference MAX { TZ i -TS i The actual temperature TZ of the seat and the temperature in the vehicle corresponding to the maximum difference valueT IN I.e. QR2= f (MAX { TZ) i -TS i }，TZ，T IN )。
Preferably, the step of the thermal management controller adjusting the operating state of the variable displacement compressor comprises:
if the variable displacement compressor is in a non-operation state, the thermal management controller controls to start the variable displacement compressor, the displacement of the compressor is set to be Q2 required by seat refrigeration, wherein Q2 is the actual temperature TZ of each seat cushion i And the seat set temperature TS i Maximum difference MAX { TZ i -TS i The actual temperature TZ of the seat and the temperature T in the vehicle corresponding to the maximum difference value IN And a function of the compressor speed r, i.e. Q2= f (MAX { TZ) i -TS i }，TZ，T IN ，r)；
If the variable displacement compressor is in the running state, the displacement of the variable displacement compressor is adjusted to be Q 0 ，Q 0 The device is divided into two parts, one part is the discharge capacity Q1 required by the refrigeration of the passenger compartment, and Q1 is the ambient temperature T OUT Illumination intensity I and indoor temperature T IN And a function of the variable displacement compressor speed r, i.e. Q1= f (T) OUT ,I,T IN R); the other part is the required displacement Q2 of seat refrigeration, and the thermal management controller adjusts the opening degree of a first electronic expansion valve and a second electronic expansion valve, and the initial proportion of the opening degree of the first electronic expansion valve to the opening degree of the second electronic expansion valve is Q1: and Q2, after the system operates, adjusting according to the superheat degree of the evaporator of the passenger compartment and the outlet of the seat refrigeration heat exchanger.
According to the technical scheme, the invention has the following advantages:
1. according to the invention, the automatic temperature regulation control can be carried out according to the temperature setting condition of the seat by the passenger, so that the temperature of the seat is constant within a target temperature range, and the riding comfort of the passenger is improved;
2. according to the invention, the related parts for adjusting the temperature of the seat are added on the traditional air conditioning system, and the seat is convenient to realize and low in cost with the heat source of the compressor and the engine of the traditional air conditioner;
3. the system can accurately control the discharge capacity of the compressor according to different working conditions, and improve the utilization rate of the compressor, thereby achieving the purpose of saving oil.
In addition, the invention has reliable design principle, simple structure and very wide application prospect.
Therefore, compared with the prior art, the invention has prominent substantive features and remarkable progress, and the beneficial effects of the implementation are also obvious.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic system configuration diagram of an embodiment of the present invention.
Figure 2 is a schematic diagram of a thermal management controller connection according to one embodiment of the present invention.
Fig. 3 is a flow chart of a seat adjustment control method according to an embodiment of the present invention.
In the figure, 1-1-a liquid storage dryer, 1-2-an electronic water pump, 1-3-a condenser, 1-4-a first electronic expansion valve, 1-5-a second electronic expansion valve, 1-6-a main driving seat core, 1-7-a variable displacement compressor, 1-8-a passenger compartment evaporator, 1-9-a seat refrigerating heat exchanger, 1-10-a secondary driving seat core, 1-11-an engine, 1-12-a passenger compartment warm air core, 1-13-a seat heating heat exchanger, 1-14-a second flow control valve, 1-15-a rear seat core, 1-16-a first flow control valve, 2-1-an engine EMS, 2-2-a main driving seat temperature sensor, 2-3-a secondary driving seat temperature sensor, 2-4-a rear seat temperature sensor, 2-5-an environmental temperature sensor, 2-6-an illumination intensity sensor, 2-7-an indoor temperature sensor, 2-8-a passenger compartment evaporator outlet pressure temperature sensor, 2-9-4-a heat management controller, 2-5-an ambient temperature sensor, 2-6-a refrigerating heat exchanger and a refrigerating heat exchanger.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, shall fall within the protection scope of the present invention.
As shown in fig. 1 and 2, an embodiment of the present invention provides a vehicle seat temperature adjustment control system, including: the system comprises a variable displacement compressor 1-7, a condenser 1-3, a liquid storage dryer 1-1, a first electronic expansion valve 1-4, a second electronic expansion valve 1-5, a passenger cabin evaporator 1-8, a seat refrigeration heat exchanger 1-9, an engine 1-11, a first flow control valve 1-16, a passenger cabin warm air core 1-12, a seat heating heat exchanger 1-13, an electronic water pump 1-2, a second flow control valve 1-14, a main driving seat core 1-6, an auxiliary driving seat core 1-10 and a rear row seat core 1-15.
The seat refrigeration heat exchanger 1-9 refrigerant side inlet end is connected with the second electronic expansion valve 1-5 outlet end, the seat refrigeration heat exchanger 1-9 refrigerant side outlet end is connected with the variable displacement compressor 1-7 air inlet end, the second electronic expansion valve 1-5 inlet end is connected with the liquid storage drier 1-1 outlet end, and a parallel branch is formed by the second electronic expansion valve 1-5 inlet end and the passenger cabin evaporator 1-8. The heat source side inlet ends of the seat heating heat exchangers 1-13 are connected with the outlet ends of the first flow control valves 1-16, and the heat source side outlet ends of the seat heating heat exchangers 1-13 are connected with the warm air return water inlet of the engine 1-11 to form parallel branches with the warm air core bodies 1-12 of the passenger cabin. A cooling liquid side inlet end of a seat refrigerating heat exchanger 1-9 is connected with an outlet end of an electronic water pump 1-2, a cooling liquid side outlet end of the seat refrigerating heat exchanger 1-9 is connected with an inlet end of a seat heating heat exchanger 1-13, a temperature adjusting loop side outlet end of the seat heating heat exchanger 1-13 is connected with an inlet end of a second flow control valve 1-14, outlet ends of the second flow control valve 1-14 are respectively connected with inlet ends of a main driving seat core 1-6, an auxiliary driving seat core 1-10 and a rear row seat core 1-15, and outlet ends of the main driving seat core 1-6, the auxiliary driving seat core 1-10 and the rear row seat core 1-15 are connected with an inlet end of the electronic water pump 1-2.
The seat temperature adjustment principle is explained as follows:
a. when the seat needs to be cooled, starting a variable displacement compressor 1-7 and an electronic water pump 1-2, adjusting the displacement of the variable displacement compressor 1-7 and the opening degree of a second electronic expansion valve 1-5 according to the seat cooling requirement, cooling liquid in a seat temperature adjusting loop in a seat cooling heat exchanger 1-9, and distributing the cooled cooling liquid to a main driving seat core 1-6, an auxiliary driving seat core 1-10 and a rear seat core 1-15 through a second flow control valve 1-14 so as to cool the seat, wherein in the process, the first flow control valve 1-16 closes the heat source side flow of the seat heating heat exchanger 1-13, and ensures that the seat heating heat exchanger 1-13 cannot heat the cooling liquid in the seat temperature adjusting loop in the seat cooling process;
b. when the seat needs to be heated, the electronic water pump 1-2 is started, the first flow control valve 1-16 adjusts the flow of the heat source side of the seat heating heat exchanger 1-13 according to the seat heating requirement, the cooling liquid in the seat temperature adjusting loop is heated in the seat heating heat exchanger 1-13, and the heated cooling liquid is distributed to the main driving seat core 1-6, the auxiliary driving seat core 1-10 and the rear row seat core 1-15 through the second flow control valve 1-14, so that the seat heating is realized.
The system also comprises a main driving seat temperature sensor 2-2, an auxiliary driving seat temperature sensor 2-3, a rear row seat temperature sensor 2-4, an environment temperature sensor 2-5, a light intensity sensor 2-6, an indoor temperature sensor 2-7, a passenger cabin evaporator outlet pressure temperature sensor 2-8, a thermal management controller 2-9, a central control screen 2-10, an engine EMS2-1 and a seat refrigerating heat exchanger outlet pressure temperature sensor 2-11;
the main driving seat temperature sensor 2-2, the auxiliary driving seat temperature sensor 2-3 and the rear row seat temperature sensor 2-4 collect corresponding seat cushion temperatures and input the information to the thermal management controller 2-9;
the environment temperature sensor 2-5 and the indoor temperature sensor 2-7 collect the environment temperature and the temperature in the vehicle, and input the information to the thermal management controller 2-9;
the illumination intensity sensor 2-6 is used for collecting illumination intensity and inputting information to the thermal management controller 2-9;
the passenger cabin evaporator outlet pressure temperature sensor 2-8 and the seat refrigeration heat exchanger outlet pressure temperature sensor 2-11 are used for respectively acquiring the refrigerant pressure and temperature at the outlet of the passenger cabin evaporator and the outlet of the seat refrigeration heat exchanger and inputting the information to the heat management controller 2-9;
the central control screen 2-10 is used for acquiring the temperature regulation information of the seats of the passengers and inputting the information to the thermal management controller 2-9;
the engine EMS2-1 acquires the rotating speed and the vehicle speed of the engine and inputs the information to the thermal management controller 2-9;
the heat management controller 2-9 is a control module of an automobile air conditioning system and a seat temperature adjusting system, and controls the electronic water pump 1-2, the first flow control valve 1-16, the second flow control valve 1-14, the first electronic expansion valve 1-4, the second electronic expansion valve 1-5 and the variable displacement compressor 1-7 according to input passenger seat temperature adjusting information, temperature of each seat cushion, ambient temperature, temperature in the automobile, illumination intensity, engine speed, refrigerant pressure and temperature at an outlet of an evaporator of a passenger compartment and an outlet of a seat refrigerating heat exchanger and the like, and the specific control method is as follows:
when the vehicle engines 1-11 are in the running state and the temperature of the seats of the vehicle is required to be adjusted, the thermal management controllers 2-9 collect the set temperature TS of each seat i Actual temperature TZ of each seat cushion i Ambient temperature T OUT Temperature T in the vehicle IN Illumination intensity, engine speed r:1. when the maximum difference T0 between the set temperature of each seat and the actual temperature of the seat cushion is less than or equal to MAX (TZ) i -TS i When the rate is less than or equal to T1, the seat temperature adjusting system does not respond; 2. when the actual temperature TZ of each seat cushion i And a seat set temperature TS i Maximum difference MAX { TZ i -TS i When the ratio is larger than T1, the thermal management controller 2-9 starts the electronic water pump 1-2, adjusts the branch flow of the second flow control valve 1-14, and the flow ratio of the main driving branch, the auxiliary driving branch and the rear row branch is △ T Main driver ： △ T Copilot ： △ T Rear row Meanwhile, the thermal management controller 2-9 adjusts the running state of the variable displacement compressor 1-7; tool for measuringIf the variable displacement compressor 1-7 is in a non-operation state, the variable displacement compressor 1-7 is started, the initial set value of the displacement is the displacement Q2 required by the seat refrigeration, and Q2 is the actual temperature TZ of each seat cushion i And the seat set temperature TS i Maximum difference MAX { TZ i -TS i The actual temperature TZ of the seat and the temperature T in the vehicle corresponding to the maximum difference value IN And a function of the compressor speed r, i.e. Q2= f (MAX { TZ) i -TS i }，TZ，T IN R), obtainable by calibration; if the variable displacement compressor 1-7 is in operation, the displacement of the variable displacement compressor is adjusted to Q 0 ，Q 0 The device is divided into two parts, one part is the discharge capacity Q1 required by the refrigeration of the passenger compartment, and Q1 is the ambient temperature T OUT Illumination intensity I and indoor temperature T IN And a function of the compressor speed r, i.e. Q1= f (T) OUT ,I,T IN R), the displacement Q2 required by seat refrigeration can be obtained through calibration, the opening degree of the first electronic expansion valve 1-4 and the opening degree of the second electronic expansion valve 1-5 are adjusted, and the initial proportion of the opening degree of the first electronic expansion valve 1-4 to the opening degree of the second electronic expansion valve 1-5 is Q1: q2, after the system is operated, adjusting according to the superheat degree of the evaporator of the passenger compartment and the outlet of the seat refrigerating heat exchanger; 3. when the actual temperature TZ of each seat cushion i And the seat set temperature TS i Maximum difference MAX { TZ i -TS i When the rate is less than T0, the heat management controller 2-9 starts the electronic water pump 1-2 and adjusts the flow of each branch of the second flow control valve 1-14, and the flow ratio of the main driving branch, the auxiliary driving branch and the rear row branch is △ T Main driver ： △ T Copilot ： △ T Rear row Meanwhile, the thermal management controller 2-9 adjusts the flow of each branch of the first flow control valve 1-16, and the proportion of the passenger compartment heating to the seat heating branch flow is as follows: QR1: QR2, where QR1 is the heat required for heating the passenger compartment, which is the ambient temperature T OUT Indoor temperature T IN Function of vehicle speed v, i.e. QR1= f (T) OUT ，T IN V) can be obtained through calibration, QR2 is the heat required by seat heating, and is the actual temperature TZ of each seat cushion i And the seat set temperature TS i Maximum difference MAX { TZ i -TS i Seat entity corresponding to maximum difference valueThe inter-vehicle temperature TZ and the in-vehicle temperature T IN QR2= f (MAX { TZ) i -TS i }，TZ，T IN ) And can be obtained by calibration.
As shown in fig. 3, an embodiment of the present invention provides a method for adjusting and controlling the temperature of a vehicle seat, the method being based on the system of the above embodiment, and the method includes the following steps:
when the seat needs to be cooled, the variable displacement compressor and the electronic water pump are started, the first flow control valve is controlled to close the flow of the heat source side of the seat heating heat exchanger, the displacement of the variable displacement compressor and the opening of the second electronic expansion valve are adjusted according to the seat cooling requirement, cooling liquid in the seat temperature adjusting loop is cooled in the seat cooling heat exchanger, and the cooled cooling liquid is distributed to the main driving seat core, the auxiliary driving seat core and the rear row seat core through the second flow control valve, so that the seat is cooled;
when the seat needs to be heated, the electronic water pump is started, the opening degree of the first flow control valve is controlled according to the seat heating requirement to adjust the heat source side flow of the seat heating heat exchanger, the cooling liquid in the seat temperature adjusting loop is heated in the seat heating heat exchanger, and the heated cooling liquid is distributed to the main driving seat core body, the auxiliary driving seat core body and the rear-row seat core body through the second flow control valve, so that the seat heating is realized.
When the engine of the vehicle is in a running state and the temperature of the seats of the vehicle is required to be adjusted, the heat management controller acquires the set temperature TS of each seat i Actual temperature TZ of each seat cushion i Ambient temperature T OUT Temperature T in the vehicle IN Illumination intensity and engine speed r;
when the maximum difference T0 between the set temperature of each seat and the actual temperature of the seat cushion is less than or equal to MAX (TZ) i -TS i When the rate is less than or equal to T1, no response is carried out;
when the actual temperature TZ of each seat cushion i And the seat set temperature TS i Maximum difference MAX { TZ i -TS i When the rate is larger than T1, the heat management controller starts the electronic water pump, adjusts the flow of each branch connected with the second flow control valve, and adjusts the flow rate of each branch connected with the second flow control valve simultaneouslyA variable displacement compressor operating state;
when the actual temperature TZ of each seat cushion i And the seat set temperature TS i Maximum difference MAX { TZ i -TS i When the rate is less than T0, the heat management controller starts the electronic water pump, adjusts the flow of each branch of the second flow control valve, and simultaneously adjusts the flow of each branch of the first flow control valve, and the ratio of the passenger compartment heating branch to the seat heating branch is as follows: QR1: QR2, wherein QR1 is the heat required for heating the passenger compartment, and QR1 is the ambient temperature T OUT Indoor temperature T IN Function of vehicle speed v, i.e. QR1= f (T) OUT ，T IN V), QR2 is the heat quantity required for heating the seat, and QR2 is the actual temperature TZ of each seat cushion i And the seat set temperature TS i Maximum difference MAX { TZ i -TS i The actual temperature TZ of the seat and the temperature T in the vehicle corresponding to the maximum difference value IN QR2= f (MAX { TZ) i -TS i }，TZ，T IN )。
Specifically, the step of the thermal management controller adjusting the operation state of the variable displacement compressor comprises the following steps:
if the variable displacement compressor is in a non-operation state, the thermal management controller controls and starts the variable displacement compressor, the displacement of the compressor is set to be Q2 required by seat refrigeration, wherein Q2 is the actual temperature TZ of each seat cushion i And a seat set temperature TS i Maximum difference MAX { TZ i -TS i The actual temperature TZ of the seat and the temperature T in the vehicle corresponding to the maximum difference value IN And a function of the compressor speed r, i.e. Q2= f (MAX { TZ) i -TS i }，TZ，T IN ，r)；
If the variable displacement compressor is in the running state, the displacement of the variable displacement compressor is adjusted to be Q 0 ，Q 0 The device is divided into two parts, one part is the discharge capacity Q1 required by the refrigeration of the passenger compartment, and Q1 is the ambient temperature T OUT Illumination intensity I and indoor temperature T IN And a function of the variable displacement compressor speed r, i.e. Q1= f (T) OUT ,I,T IN R); the other part is the displacement Q2 required by the seat refrigeration, and the opening of the first electronic expansion valve and the second electronic expansion valve is adjusted by the thermal management controllerThe opening degree of the first electronic expansion valve and the opening degree of the second electronic expansion valve are in the initial proportion Q1: and Q2, after the system operates, adjusting according to the superheat degree of the evaporator of the passenger compartment and the outlet of the seat refrigeration heat exchanger.
Although the present invention has been described in detail by referring to the drawings in connection with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and these modifications or substitutions are within the scope of the present invention/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (10)

1. The automobile seat temperature adjusting and controlling system is characterized by comprising a refrigerating mechanism, a heating mechanism, a main driving seat core, an auxiliary driving seat core and a rear-row seat core;
the main driving seat core, the auxiliary driving seat core and the rear row seat core are connected in parallel, one end of the main driving seat core, the auxiliary driving seat core and the rear row seat core are connected to the refrigerating mechanism through the electronic water pump, and the other end of the main driving seat core, the auxiliary driving seat core and the rear row seat core are connected to the heating mechanism through the second flow control valve;
the refrigerating mechanism is connected with the heating mechanism;
the system also comprises a thermal management controller, and a main driving seat temperature sensor, an auxiliary driving seat temperature sensor, a rear row seat temperature sensor, an environment temperature sensor, an illumination intensity sensor, an indoor temperature sensor, a central control screen, an engine EMS and a refrigeration mechanism pressure temperature sensor which are connected with the thermal management controller;
the refrigerating mechanism and the heating mechanism are respectively connected with the heat management controller, and the heat management controller controls the refrigerating mechanism or the heating mechanism to work according to information collected by the connected sensors.
2. The vehicle seat temperature adjusting and controlling system according to claim 1, wherein the refrigerating mechanism comprises a seat refrigerating heat exchanger, a refrigerant side inlet end of the seat refrigerating heat exchanger is connected with an outlet end of a second electronic expansion valve, the refrigerant side outlet end of the seat refrigerating heat exchanger is connected with an inlet end of a variable displacement compressor, the inlet end of the second electronic expansion valve is connected with an outlet end of a liquid storage dryer, the outlet end of the liquid storage dryer is further connected with an inlet end of a passenger cabin evaporator through a first electronic expansion valve, the outlet end of the passenger cabin evaporator is connected with the inlet end of the variable displacement compressor, the outlet end of the variable displacement compressor is connected with an inlet end of a condenser, and the outlet end of the condenser is connected with the inlet end of the liquid storage dryer;
the cooling liquid side inlet end of the seat refrigeration heat exchanger is connected with the outlet end of the electronic water pump, and the cooling liquid side outlet end of the seat refrigeration heat exchanger is connected with the inlet end of the heating mechanism.
3. The vehicle seat temperature regulation control system of claim 2, wherein the heating mechanism comprises a seat heating heat exchanger, a first flow control valve outlet is connected to a heat source side inlet end of the seat heating heat exchanger, an engine heating water return port is connected to a heat source side outlet end of the seat heating heat exchanger, an engine heating water return port is connected to an outlet end of the first flow control valve, the first flow control valve outlet is connected to the engine heating water return port through a passenger cabin heating air core, a seat heating heat exchanger seat temperature regulation loop side outlet is connected to a second flow control valve inlet, the second flow control valve outlet is connected to the main driver seat core, the sub driver seat core and the rear row seat core respectively, and a seat cooling heat exchanger cooling liquid side outlet is connected to a seat heating heat exchanger seat heating loop side inlet.
4. The vehicle seat temperature adjustment control system according to claim 3, wherein the variable displacement compressor is configured to compress a low-temperature and low-pressure gaseous refrigerant entering the variable displacement compressor into a high-temperature and high-pressure gaseous refrigerant and discharge the compressed gaseous refrigerant;
the condenser is used for condensing the high-temperature and high-pressure gaseous refrigerant discharged by the variable displacement compressor into a medium-temperature and high-pressure liquid refrigerant;
the liquid storage dryer is used for storing redundant refrigerant in the air conditioning system and removing impurities and moisture in the refrigerant;
the first electronic expansion valve is used for reducing pressure and throttling, and receiving an instruction of the thermal management controller to adjust the opening degree so as to adjust the refrigerant flow of the refrigerating branch of the passenger compartment;
the second electronic expansion valve is used for reducing pressure and throttling, and meanwhile, receiving an instruction of the thermal management controller to adjust the opening degree, so that the adjustment of the refrigerant flow of the seat refrigeration branch is realized;
a passenger compartment evaporator for evaporating the low-temperature and low-pressure liquid refrigerant throttled by the first electronic expansion valve into a gaseous refrigerant;
the seat refrigeration heat exchanger is used for exchanging heat with the low-temperature refrigerant through the cooling liquid in the seat refrigeration heat exchanger to realize cooling of the cooling liquid.
5. The vehicle seat temperature adjustment control system according to claim 4, wherein the engine is configured to provide a heat source for heating the passenger compartment and the seat;
the first flow control valve is used for receiving the instruction of the thermal management controller to adjust the flow of the cooling liquid of each branch;
the passenger cabin warm air core body is used for realizing the heating of air by carrying out heat exchange on the air flowing through the surface of the passenger cabin warm air core body and high-temperature cooling liquid flowing through the interior of the passenger cabin warm air core body;
and the seat heating heat exchanger is used for exchanging heat between the cooling liquid in the seat heating loop inside the seat heating heat exchanger and the high-temperature cooling liquid in the heat source side loop to realize the temperature rise of the cooling liquid.
6. The vehicle seat temperature regulation and control system of claim 5, wherein the main seat core, the assistant seat core and the rear seat core are used for realizing the temperature rise or reduction of the seat cushions through the heat exchange between the cooling liquid in the cores and the surrounding environment of the seat cushions;
the electronic water pump is used for providing power for the circulation of the cooling liquid in the loop and receiving an instruction of the thermal management controller to adjust the flow of the cooling liquid in the loop;
and the second flow control valve is used for receiving the instruction of the thermal management controller to adjust the flow of the cooling liquid of each seat branch in the seat temperature adjusting loop.
7. The vehicle seat temperature adjustment control system according to claim 6, wherein the main seat temperature sensor, the sub-seat temperature sensor and the rear seat temperature sensor are configured to collect temperatures of respective seat cushions and input the information to the thermal management controller;
the environment temperature sensor is used for acquiring environment temperature information and inputting the information to the heat management controller;
the illumination intensity sensor is used for acquiring illumination intensity information and inputting the information to the thermal management controller;
the indoor temperature sensor is used for collecting temperature information in the vehicle and inputting the information to the heat management controller;
the refrigerating mechanism pressure temperature sensor comprises a passenger cabin evaporator outlet pressure temperature sensor and a seat refrigerating heat exchanger outlet pressure temperature sensor;
the passenger compartment evaporator outlet pressure and temperature sensor is used for acquiring the pressure and temperature of a refrigerant at the outlet of the passenger compartment evaporator of the passenger compartment refrigeration branch and inputting information to the thermal management controller;
the seat refrigeration heat exchanger outlet pressure temperature sensor is used for acquiring the pressure and the temperature of a refrigerant at an outlet of a refrigerant side of the seat refrigeration heat exchanger and inputting the pressure and the temperature to the thermal management controller;
the central control screen is used for acquiring the temperature adjusting information of the passenger seat and inputting the temperature adjusting information to the heat management controller;
and the engine EMS is used for acquiring the rotating speed and the vehicle speed of the engine and inputting the information to the thermal management controller.
8. A method for adjusting and controlling the temperature of an automobile seat is characterized by comprising the following steps:
when the seat needs to be cooled, the variable displacement compressor and the electronic water pump are started, the first flow control valve is controlled to close the flow of the heat source side of the seat heating heat exchanger, the displacement of the variable displacement compressor and the opening of the second electronic expansion valve are adjusted according to the seat cooling requirement, cooling liquid in the seat temperature adjusting loop is cooled in the seat cooling heat exchanger, and the cooled cooling liquid is distributed to the main driving seat core, the auxiliary driving seat core and the rear row seat core through the second flow control valve, so that the seat is cooled;
when the seat needs to be heated, the electronic water pump is started, the opening degree of the first flow control valve is controlled according to the seat heating requirement to adjust the heat source side flow of the seat heating heat exchanger, the cooling liquid in the seat temperature adjusting loop is heated in the seat heating heat exchanger, and the heated cooling liquid is distributed to the main driving seat core body, the auxiliary driving seat core body and the rear-row seat core body through the second flow control valve, so that the seat heating is realized.
9. The vehicle seat temperature adjustment control method according to claim 8, characterized by further comprising:
when the vehicle engine is in a running state and the vehicle has a seat temperature regulation requirement, the thermal management controller acquires the set temperature TS of each seat i Actual temperature TZ of each seat cushion i Ambient temperature T OUT Temperature T in the vehicle IN Illumination intensity and engine speed r;
when the maximum difference T0 between the set temperature of each seat and the actual temperature of the seat cushion is less than or equal to MAX { TZ i -TS i When the rate is less than or equal to T1, no response is carried out;
when the actual temperature TZ of each seat cushion i And a seat set temperature TS i Maximum difference MAX { TZ i -TS i When the ratio is larger than T1, the heat management controller starts the electronic water pump, adjusts the flow of each branch connected with the second flow control valve, and simultaneously adjusts the running state of the variable displacement compressor;
when the actual temperature TZ of each seat cushion i And the seat set temperature TS i Maximum difference MAX { TZ i -TS i When the rate is less than T0, the heat management controller starts the electronic water pump and adjustsThe flow of each branch of the second flow control valve, and meanwhile, the heat management controller adjusts the flow of each branch of the first flow control valve, and the proportion of the heating of the passenger compartment to the flow of the seat heating branch is as follows: QR1: QR2, wherein QR1 is the heat required for heating the passenger compartment, and QR1 is the ambient temperature T OUT Indoor temperature T IN Function of vehicle speed v, i.e. QR1= f (T) OUT ，T IN V), QR2 is heat required by seat heating, and QR2 is actual temperature TZ of each seat cushion i And the seat set temperature TS i Maximum difference MAX { TZ i -TS i The actual temperature TZ of the seat and the temperature T in the vehicle corresponding to the maximum difference value IN QR2= f (MAX { TZ) i -TS i }，TZ，T IN )。
10. The method as claimed in claim 9, wherein the step of the thermal management controller adjusting the operating state of the variable displacement compressor comprises:
if the variable displacement compressor is in a non-operation state, the thermal management controller controls to start the variable displacement compressor, the displacement of the compressor is set to be Q2 required by seat refrigeration, wherein Q2 is the actual temperature TZ of each seat cushion i And the seat set temperature TS i Maximum difference MAX { TZ i -TS i The actual temperature TZ of the seat and the temperature T in the vehicle corresponding to the maximum difference value IN And a function of the compressor speed r, i.e. Q2= f (MAX { TZ) i -TS i }，TZ，T IN ，r)；
If the variable displacement compressor is in the running state, the displacement of the variable displacement compressor is adjusted to be Q 0 ，Q 0 The system is divided into two parts, one part is the discharge capacity Q1 required by the refrigeration of the passenger compartment, and Q1 is the ambient temperature T OUT Illumination intensity I, indoor temperature T IN And a function of the variable displacement compressor speed r, i.e. Q1= f (T) OUT ,I,T IN R); the other part is the required displacement Q2 of seat refrigeration, and the thermal management controller adjusts the opening degree of a first electronic expansion valve and a second electronic expansion valve, and the initial proportion of the opening degree of the first electronic expansion valve to the opening degree of the second electronic expansion valve is Q1: q2, after the system is operated, according to the evaporator and the seat of the passenger compartmentAnd adjusting the superheat degree of the outlet of the refrigeration heat exchanger.
CN202211693369.6A 2022-12-28 2022-12-28 Automobile seat temperature adjusting and controlling system and method Pending CN115817303A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211693369.6A CN115817303A (en) 2022-12-28 2022-12-28 Automobile seat temperature adjusting and controlling system and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211693369.6A CN115817303A (en) 2022-12-28 2022-12-28 Automobile seat temperature adjusting and controlling system and method

Publications (1)

Publication Number Publication Date
CN115817303A true CN115817303A (en) 2023-03-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211693369.6A Pending CN115817303A (en) 2022-12-28 2022-12-28 Automobile seat temperature adjusting and controlling system and method

Country Status (1)

Country Link
CN (1) CN115817303A (en)

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