CN117246103A - Whole vehicle thermal management system, whole vehicle thermal management method and vehicle - Google Patents

Abstract

The application relates to a whole vehicle thermal management system, a whole vehicle thermal management method and a vehicle. The whole car heat management system comprises: the heating terminals are at least three and are respectively arranged in the cab, the oil tank and the engine; working medium flows in the heating terminal; the central heating unit is connected with the heating terminal and is used for heating working media; the electric control valve is used for controlling the communication or blocking between the central heating unit and the heating terminal; and the control piece can control the working state of the electric control valve. The working medium in different heating terminals is heated through the central heating unit, and the control piece controls the electric control valve to be conducted, so that the heated working medium can be synchronously conveyed to different heating terminals, such as a cab, an oil tank and an engine, synchronous heating of the three heating terminals is realized, the integration degree is high, the cost of the whole automobile is reduced, and the driving comfort under a low-temperature environment is improved.

Description

Whole vehicle thermal management system, whole vehicle thermal management method and vehicle

Technical Field

The application relates to the technical field of vehicles, in particular to a whole vehicle heat management system, a whole vehicle heat management method and a vehicle.

Background

In cold winter, the following problems are generally faced when the diesel commercial vehicle in northern areas of China is used: firstly, the phenomenon that fuel in an oil tank is condensed due to low temperature causes difficult starting of an engine and the vehicle cannot normally run; secondly, the abrasion of the engine is increased when the engine is started due to low temperature, so that the service life of the engine is reduced; thirdly, because the vehicle is parked outdoors for a long time, the temperature in the vehicle is intolerable under the condition of no intervention, and the comfort of the vehicle is reduced.

In the related art, because the positions and structures of the oil tank, the engine and the cab are different, the problem of fuel condensation is usually solved by respectively adopting an external heating oil tank, the problem of engine preheating is solved by adopting an additional water heating heater, the problem of cab preheating is solved by adopting an additional air heating heater, and the like, however, the problem that the normal use of a vehicle is influenced due to supercooling of three structures is solved simultaneously by utilizing the whole set of system in the related art, and the problems of potential safety hazard and high cost exist.

Disclosure of Invention

Based on this, it is necessary to provide a whole vehicle thermal management system, a whole vehicle thermal management method and a vehicle to synchronously realize safe heating of an oil tank, an engine, a cab and the like, improve driving comfort in a low-temperature environment and reduce whole vehicle cost.

The first aspect of the present application provides a whole vehicle thermal management system, the whole vehicle thermal management system includes: the heating terminals are at least three and are respectively arranged in the cab, the oil tank and the engine; working medium flows in the heating terminal; the central heating unit is connected with the heating terminal and is used for heating working media; the electric control valve is used for controlling the communication or blocking between the central heating unit and the heating terminal; and the control piece can control the working state of the electric control valve.

In one embodiment, the whole vehicle thermal management system further comprises a conveying member, and the central heating unit and all the heating terminals are sequentially communicated through the conveying member, so that the heated working medium can synchronously heat all the heating terminals.

In one embodiment, the central heating unit and each heating terminal can also be sequentially communicated through the conveying member, respectively, so that the heated working medium can independently heat each heating terminal.

In one embodiment, the central heating unit and the two heating terminals can be sequentially communicated through the conveying member, so that the heated working medium can heat the two heating terminals.

In one embodiment, the electric control valve is arranged on the conveying member, and the working state of the electric control valve is controlled by the control member, so that the whole vehicle thermal management system can switch the heating terminal.

In one embodiment, the whole vehicle thermal management system further comprises a temperature sensor, wherein the temperature sensor is used for acquiring the temperature of the heating terminal and transmitting the temperature to the control member.

In one embodiment, the central heating unit comprises a heating element for heating the working medium and a driving element for outputting the working medium to the heating element and inputting the working medium in the heating terminal.

In one embodiment, the heating element is configured to heat the working fluid by combustion of fuel; the central heating unit also comprises an oil pump, and the oil pump is connected to the heating element and is used for pumping fuel oil and transmitting the fuel oil to the heating element.

The second aspect of the application provides a whole vehicle thermal management method, which comprises the following steps: determining a target working condition of the whole vehicle thermal management, wherein the target working condition is the working condition of at least one heating terminal; according to a preset control logic, the control piece generates a target control signal corresponding to a target working condition; and sending a target control signal to the central heating unit and the electric control valve to control the heating and flow direction of the working medium.

A third aspect of the present application provides a vehicle comprising a whole vehicle thermal management system as described above.

Above-mentioned whole car thermal management system heats the working medium in the different heating terminals through central heating unit to and the switch-on of control piece control automatically controlled valve for the synchronous transportation of the heated working medium to different heating terminals, like driver's cabin, oil tank and three heating terminals of engine, realize three's synchronous heating, the degree of integration is high, promotes the driving travelling comfort under the low temperature environment, need not to increase new warm heater of wind or water heater again, has reduced the cost of whole car, and central heating unit safe and reliable has improved the security.

Drawings

Fig. 1 is a schematic diagram of a whole vehicle thermal management system according to an embodiment of the present application.

Fig. 2 is a control schematic diagram of the whole vehicle thermal management system in an embodiment of the present application.

FIG. 3 is a flow chart of a method of thermal management of an entire vehicle in an embodiment of the present application.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.

In the description of the present application, it should be understood that, if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., these terms refer to the orientation or positional relationship based on the drawings, which are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.

In this application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.

Referring to fig. 1 and 2, fig. 1 and 2 are schematic diagrams of a whole vehicle thermal management system according to an embodiment of the present application. The whole vehicle thermal management system 100 provided in an embodiment of the present application includes a heating terminal 10, a central heating unit 20, an electric control valve 30, and a control member 40.

The heating terminal 10 is a component which needs to be heated in the whole vehicle, and the heating terminal 10 is heated to realize the heat management of the whole vehicle. In some embodiments, at least three heating terminals 10 are provided, and three heating terminals 10 are provided in the cab, the oil tank, and the engine, respectively. For convenience of comparison and description, the heating terminal 10 of the cab is referred to as a first heating terminal 11, the heating terminal 10 of the oil tank is referred to as a second heating terminal 12, and the heating terminal 10 of the engine is referred to as a third heating terminal 13.

The entire vehicle thermal management system 100 in the embodiment of the present application uses a coolant as a working medium for heat exchange. The coolant has the characteristic of freezing prevention, and is applicable to low-temperature environment, and the coolant can absorb more heat, so that the heat utilization rate of the whole vehicle thermal management system 100 is improved. In other embodiments, gas, steam, etc. may be used as the working medium.

Optionally, the coolant is the coolant of the engine, and the coolant of the engine has an antifreezing effect, and the coolant of the engine is easy to obtain, without adding a new box for accommodating the coolant, so as to improve the integration degree of the whole vehicle thermal management system 100 and reduce the cost of the whole vehicle, and further facilitate the realization of the increase of the temperature of the engine, so that the engine can reach the normal running temperature more quickly. In other embodiments, the cooling fluid may also be provided by placement of an external water tank.

The central heating unit 20 is connected to the heating terminals 10 for heating the working medium and delivering the heated working medium to the heating terminals 10, such as the first heating terminal 11, the second heating terminal 12 and the third heating terminal 13.

Specifically, the central heating unit 20 comprises a heating element 21 and a driving element 22, the heating element 21 itself being able to generate heat and the heat being transferred to the working medium, so as to achieve heating of the working medium. The driving member 22 is used for outputting the working medium to the heating member 21, completing the heating of the working medium, and inputting the working medium of the heating terminal 10 to the heating member 21, so that the working medium can form a heating cycle.

Alternatively, the heating element 21 may be a fuel heater. Heat is generated by heating fuel, heat exchange occurs between the heat and the working medium, so that the temperature of the working medium is increased, and then the heated working medium exchanges heat with the heating terminal 10, so that the heating of the heating terminal 10 such as a cab, an oil tank, an engine and the like is realized.

Because the working medium is coolant, the driving member 22 can be a water pump, and the water pump is connected to the fuel heater and used for inputting the coolant to the fuel heater. The arrangement of the water pump is favorable for pumping cold cooling liquid out to the fuel oil heater, so that continuous supply of the cooling liquid is realized, and continuous heating of the whole vehicle is realized.

The electronic control valve 30 is used to control communication or blocking between the central heating unit 20 and the heating terminals 10, so that the automobile thermal management system can heat different heating terminals 10, and improve heating efficiency, such as individual heating or simultaneous heating of the first, second and third heating terminals 11, 12 and 13.

The control member 40 is capable of controlling the operating power of the central heating unit 20 and the operating state of the electrically controlled valve 30. The control member 40 is used for controlling the operation power, so that the control member is used for heating working media, the electric control valve 30 is used for controlling the number of the heating terminals 10, the corresponding heating terminals 10 are selected for heating, the heating effect and the heating rate of the whole vehicle are improved, and the comfort of the vehicle is improved.

The working media in different heating terminals 10 are heated through the central heating unit 20, and the control part 40 controls the electric control valve 30 to be conducted, so that the heated working media can be synchronously conveyed to different heating terminals 10, such as the first heating terminal 11, the second heating terminal 12 and the third heating terminal 13, synchronous heating of the three is realized, the integration degree is high, the driving comfort in a low-temperature environment is improved, a new air heating heater or a water heating heater is not required, the cost of the whole vehicle is reduced, and the fuel oil heater is safe and reliable, and the safety is improved.

In some embodiments, the whole vehicle thermal management system 100 further includes a conveying member 50, such as a heating water pipe, and the circulation of the working medium in the conveying member 50 is realized, so that the heated working medium can be synchronously heated by a plurality of heating terminals 10, such as the first heating terminal 11, the second heating terminal 12 and the third heating terminal 13.

The central heating unit 20 and all the heating terminals 10 are sequentially communicated through the conveying members 50, so that heated working media can synchronously heat all the heating terminals 10, the whole vehicle heating terminals 10 are integrated, and the heating efficiency is improved.

Specifically, in the present embodiment, the driving member 22, the heating member 21, the first heating terminal 11, the second heating terminal 12, the third heating terminal 13, and the driving member 22 are sequentially communicated by the conveying member 50 to form a first circuit. Through the working medium circulating in first return circuit, the working medium after the heating can the synchronous heating first heating terminal 11, second heating terminal 12 and third heating terminal 13, has realized the integration of first heating terminal 11, second heating terminal 12 and third heating terminal 13, has improved thermal utilization ratio, helps whole car to reach user demand fast, promotes the automobile use experience under the low temperature.

It should be noted that, in this application, the working medium in the engine is heated, so the third heating terminal 13 is connected with the driving member 22, so that the next cycle process of the working medium is conveniently executed, and the application is not limited to the scheme that the first heating terminal 11, the second heating terminal 12 and the third heating terminal 13 are sequentially communicated, and can be adjusted according to different positions of the heating terminal 10.

In some embodiments, the central heating unit 20 and each heating terminal 10 can also be sequentially communicated through the conveying members 50, so that the heated working medium can independently heat each heating terminal 10, thereby realizing the heating of a single heating terminal 10, realizing the selective output of heat, being convenient for achieving the required heating efficiency and improving the use comfort of the whole vehicle.

Further, the central heating unit 20 and the two heating terminals 10 can be sequentially communicated through the conveying member 50, so that the heated working medium can heat the two heating terminals 10, and thus the specific heating terminals 10 can be heated, so as to be suitable for different use environments and use requirements, and the universality of the whole vehicle thermal management system 100 is improved.

In this embodiment, the first heating terminal 11 is further connected to the driving member 22 through the conveying member 50, and a second loop is formed among the heating member 21, the first heating terminal 11 and the driving member 22, so that the heated working medium can individually heat the first heating terminal 11, and the control member 40 can individually control the first heating terminal 11.

Further, the heating element 21 is further communicated with the second heating terminal 12 through the conveying element 50, the second heating terminal 12 is communicated with the driving element 22 through the conveying element 50, a third loop is formed among the heating element 21, the second heating terminal 12 and the driving element 22, and the heated working medium can independently heat the second heating terminal 12. A fourth loop is formed among the heating element 21, the first heating terminal 11, the second heating terminal 12 and the driving element 22, and the heated working medium can heat the first heating terminal 11 and the second heating terminal 12. A fifth loop is formed among the heating element 21, the second heating terminal 12, the third heating terminal 13 and the driving element 22, and the heated working medium can heat the second heating terminal 12 and the third heating terminal 13.

Furthermore, the heating element 21 is further communicated with the third heating terminal 13 through the conveying element 50, a sixth loop is formed among the heating element 21, the third heating terminal 13 and the driving element 22, and the heated working medium can independently heat the third heating terminal 13. The first heating terminal 11 is further communicated with the third heating terminal 13 through the conveying member 50, a seventh loop is formed among the heating member 21, the first heating terminal 11, the third heating terminal 13 and the driving member 22, and the heated working medium can heat the first heating terminal 11 and the third heating terminal 13.

Through the second loop, the third loop, the fourth loop, the fifth loop, the sixth loop and the seventh loop, the whole vehicle thermal management system 100 can also perform targeted heating on one or two of the first heating terminal 11, the second heating terminal 12 and the third heating terminal 13, which is conducive to the application of the whole vehicle thermal management system 100 to various use requirements, and further improves the integration degree of the whole vehicle thermal management system 100 and the heat utilization efficiency.

In some embodiments, the electric control valve 30 is disposed on the conveying member 50, and the control member 40 controls the working state of the electric control valve 30, so that the whole vehicle thermal management system 100 can switch the heating terminal 10. It should be noted that the working states of the electric control valve 30 include the closing of the electric control valve 30 and the opening of the electric control valve 40, so that the conveying members 50 are in a blocking state or a conducting state, respectively.

The working state of the electric control valve 30 may also include the opening size of the electric control valve 30, so that working media with different flow rates can flow to the heating terminal 10, and different heating terminals 10 can have different heating states, so that heat can be distributed more effectively, and the heat management efficiency of the whole vehicle thermal management system 100 is improved.

In particular, in this embodiment, the whole vehicle thermal management system 100 can switch among the first loop, the second loop, the third loop, the fourth loop, the fifth loop, the sixth loop, and the seventh loop, so that the heated working medium can heat at least one of the first heating terminal 11, the second heating terminal 12, and the third heating terminal 13, and therefore, the whole vehicle thermal management system 100 can be suitable for not only a low-temperature environment, but also a situation that only a single or a combination of a cab, an oil tank, or an engine is heated.

In the embodiment disclosed in the application, the electric control valve 30 is a three-way valve, a first electric control valve 31 is arranged between the heating element 21 and the first heating terminal 11, a second electric control valve 32 is arranged between the first heating terminal 11 and the second heating terminal 12, a third electric control valve 33 is arranged between the second heating terminal 12 and the third heating terminal 13, and a fourth electric control valve 34 is arranged between the third heating terminal 13 and the driving element 22. A fifth electrically controlled valve 35 and a sixth electrically controlled valve 30 are also arranged between the first electrically controlled valve 31 and the fourth electrically controlled valve 34.

The delivery member 50 is disposed between the driving member 22 and the heating member 21, the heating member 21 and the first electric control valve 31, the first electric control valve 31 and the first heating terminal 11, the first heating terminal 11 and the second electric control valve 32, the second electric control valve 32 and the second heating terminal 12, the second heating terminal 12 and the third electric control valve 33, the third electric control valve 33 and the third heating terminal 13, the third heating terminal 13 and the fourth electric control valve 34, the fourth electric control valve 34 and the driving member 22, the first electric control valve 31 and the fifth electric control valve 35, the second electric control valve 32 and the fifth electric control valve 35, the third electric control valve 33 and the sixth electric control valve 30, the fourth electric control valve 34 and the sixth electric control valve 30, and may form a first circuit, a second circuit, a third circuit, a fourth circuit, a fifth circuit, a sixth circuit, and a seventh circuit as necessary to heat at least one of the cab, the tank, and the three heating terminals 10 of the engine.

In a possible embodiment, the electric control valve 30 may also be a two-way electric control valve 30 or a four-way electric control valve 30, so as to control the conduction of different loops, thereby realizing heating of at least one of the three heating terminals 10 of the cab, the oil tank and the engine.

In some embodiments, referring to fig. 2, the control unit 40 is configured to generate a target control signal corresponding to a target working condition according to the target working condition of the whole vehicle thermal management and a preset control logic, and send the target control signal to the central heating unit 20 and the electric control valve 30 corresponding to the target working condition, so as to control the running power of the central heating unit 20 or the conduction of the electric control valve 30, thereby controlling the heating of the working medium and the flow direction of the working medium. The target working condition includes at least one working condition of the first heating terminal 11, the second heating terminal 12 or the third heating terminal 13.

The driving member 22 receives the target control signal of the control member 40 and delivers the working medium to the heating member 21. The heating member 21 receives the target control signal of the control member 40, burns to heat the working medium, and outputs the heated working medium. The electric control valve 30 receives the target control signal of the control member 40, and conducts the corresponding loop under the target working condition, so as to heat at least one of the three heating terminals 10 of the cab, the oil tank and the engine.

In an embodiment not shown, the central heating unit 20 further comprises an oil pump for connection to the heating element 21 for pumping fuel from the low-grade tank and delivering it to the heating element 21, so that the combustion of the fuel pumped by the oil pump generates heat for heating the working medium.

The whole vehicle thermal management system 100 also includes a temperature sensor for acquiring the temperature of the heating terminal 10 such as the cab, the fuel tank, and the engine, and transmitting the temperature to the control member 40. The condition of the cab, the oil tank and the engine is conveniently obtained through the temperature sensor, so that one or more of the heating terminals 10 are selectively heated, the temperature in the corresponding heating process is obtained, whether the preset heating effect is achieved is judged, and the control piece 40 can regulate and control the heating power of the fuel oil heater, the conduction of the electric control valve 30 and the like through the signal transmitted by the temperature sensor, so that the whole vehicle can be heated rapidly and effectively.

Referring to fig. 3, another aspect of the present application further provides a whole vehicle thermal management method, where the whole vehicle thermal management method includes:

s310, determining a target working condition of the whole vehicle thermal management. The target working condition is a working condition of the at least one heating terminal 10, including at least one working condition of the first heating terminal 11, a working condition of the second heating terminal 12 or a working condition of the third heating terminal 13.

The target operating condition refers to a situation in which one or more of the heating terminals 10, such as the cab, the fuel tank, and the engine, are heated. The working condition of the first heating terminal 11 refers to the condition of the temperature in the cab, including the initial temperature condition in the cab and the temperature condition in the heating process, and the working condition of the second heating terminal 12 refers to the working condition of heating the fuel in the fuel tank, so that the fuel is prevented from being condensed at low temperature, and the vehicle cannot be started. The condition of the third heating terminal 13 refers to the warm-up condition of the engine so that the engine is easily started.

S320, according to the preset control logic, the control member 40 generates a target control signal corresponding to the target working condition.

The preset control logic may refer to preset logic for heating one or more of the heating terminals 10, such as the cab, the fuel tank, and the engine. And according to the preset control logic, the target working condition can be realized. The target control signal may be a signal generated according to a preset control logic for controlling the central heating unit 20 and the electric control valve 30 to complete heating of the whole vehicle.

S330, the control member 40 transmits the target control signal to the central heating unit 20 or the electric control valve 30 corresponding to the target working condition to control the heating and flow direction of the working medium.

The working medium is fed to the heating element 21 via the drive element 22. Specifically, according to different working conditions, the control unit 40 may control the flow of the driving unit 22, for example, when all the heating terminals 10 such as the cab, the oil tank, and the engine need to be heated synchronously, the flow of the driving unit 22 is increased, so that the heated working medium heats the whole vehicle as soon as possible, and when one of the heating terminals 10 such as the cab, the oil tank, and the engine is heated separately, the flow of the driving unit 22 may be reduced, which is beneficial to energy saving of the whole vehicle thermal management system 100.

The working medium is heated by the heating element 21. When the temperature is lower or all the heating terminals 10 such as the cab, the oil tank and the engine need to be heated synchronously, the operation power of the heating element 21 is increased so as to improve the heating rate and the heating effect, and when the target working condition is approached or completed, the operation power of the heating element 21 can be reduced, so that the heat can be fully utilized, and the safety of the heating terminals 10 such as the engine and the oil tank in the heating process is ensured.

The on-off state between the heating member 21 and the heating terminals 10 is controlled by the electric control valve 30, so that the heated working substance can selectively heat one or more heating terminals 10 to achieve different target working conditions. The corresponding valve in the three-way electric control valve 30 is controlled to be opened or closed, so that the corresponding loops are communicated, and the heat utilization rate is improved.

As the same concept of the present application, the present application also provides a vehicle, which includes the whole vehicle thermal management system 100, where the whole vehicle thermal management system 100 is the whole vehicle thermal management system 100 in the above embodiment. Preferably, the vehicle is a commercial vehicle.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims (10)

1. The whole car thermal management system is characterized by comprising:

the heating terminals are at least three and are respectively arranged in the cab, the oil tank and the engine; working media flow in the heating terminal;

the central heating unit is connected with the heating terminal and is used for heating the working medium;

the electric control valve is used for controlling the communication or blocking between the central heating unit and the heating terminal; and

and the control piece can control the working state of the electric control valve.

2. The whole vehicle thermal management system according to claim 1, further comprising a conveying member, wherein the central heating unit and all the heating terminals are sequentially communicated through the conveying member, so that the heated working medium can synchronously heat all the heating terminals.

3. The overall vehicle thermal management system of claim 2, wherein the central heating unit and each heating terminal are further capable of communicating in sequence through the transport member, respectively, such that the heated working medium is capable of heating each of the heating terminals individually.

4. The whole vehicle thermal management system according to claim 3, wherein the central heating unit and the two heating terminals can be sequentially communicated through the conveying member, so that the heated working medium can heat the two heating terminals.

5. The whole vehicle thermal management system according to claim 4, wherein the electric control valve is disposed on the conveying member, and the working state of the electric control valve is controlled by the control member, so that the whole vehicle thermal management system can switch the heating terminal.

6. The vehicle thermal management system of claim 1, further comprising a temperature sensor for acquiring a temperature of the heating terminal and transmitting the temperature to the control member.

7. The vehicle thermal management system of any of claims 1-6, wherein the central heating unit includes a heating element for heating the working fluid and a driving element for outputting the working fluid to the heating element and inputting the working fluid in the heating terminal.

8. The whole vehicle thermal management system of claim 7, wherein the heating element is configured to heat the working fluid by combustion of fuel; the central heating unit further comprises an oil pump, wherein the oil pump is connected with the heating element and is used for pumping fuel oil and transmitting the fuel oil to the heating element.

9. The whole vehicle thermal management method is characterized by comprising the following steps of:

determining a target working condition of the whole vehicle thermal management, wherein the target working condition is a working condition of at least one heating terminal;

according to a preset control logic, the control piece generates a target control signal corresponding to a target working condition;

and sending the target control signal to a central heating unit and an electric control valve to control the heating and flow direction of the working medium.

10. A vehicle comprising a complete vehicle thermal management system according to any one of claims 1-8.