Engine heating system and vehicle

Abstract

The utility model discloses an engine heating system and a vehicle, and relates to the technical field of new energy automobiles, and the engine heating system comprises a methanol engine in which cooling liquid is stored; a water inlet of the water pump is communicated with a water outlet of the methanol engine; a water inlet of the first PTC heater is communicated with a water outlet of the water pump, a water outlet of the first PTC heater is communicated with a water inlet of the methanol engine, and the first PTC heater is used for heating cooling liquid flowing through the first PTC heater; a water inlet of the heat management module is communicated with the first communication interface, and a water outlet of the heat management module is communicated with the second communication interface. According to the utility model, the starting efficiency of the vehicle in a low-temperature environment can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy vehicles, and in particular to an engine heating system and a vehicle. Background Art

[0002] In response to the call for carbon peak and carbon neutrality, the automotive industry is moving towards low-carbon and new energy. Under this development trend, various energy situations and structures are constantly emerging. Among them, methanol, as a low-carbon oxygen-containing fuel, has received widespread attention in the industry.

[0003] At present, in order to solve the problem of difficulty in cold starting of automobiles due to poor starting efficiency of vehicles in low temperature environments (specifically, it is difficult to ignite in low temperature environments), a common solution is to add gasoline equipment or diesel equipment to first use the gasoline equipment or diesel equipment to heat the methanol engine in a low temperature environment, and then switch to methanol engine as methanol fuel after reaching the critical temperature for starting the methanol engine. However, this method increases the cost of the entire vehicle and cannot solve the problem that other thermal management modules in the car (such as air conditioning, batteries, etc.) are difficult to start in low temperature environments, thereby resulting in low starting efficiency of the entire vehicle.

[0004] In summary, how to improve the starting efficiency of vehicles in low temperature environments is a technical problem that needs to be urgently solved in the field of new energy vehicle technology. Utility Model Content

[0005] The main purpose of the utility model is to provide an engine heating system and a vehicle, aiming to improve the starting efficiency of the vehicle in a low temperature environment.

[0006] In order to achieve the above-mentioned purpose, the utility model proposes an engine heating system, which comprises:

[0007] A methanol engine, wherein a coolant is stored in the methanol engine;

[0008] A water pump, wherein a water inlet of the water pump is connected to a water outlet of the methanol engine;

[0009] a first PTC heater, wherein a water inlet of the first PTC heater is communicated with a water outlet of the water pump, a water outlet of the first PTC heater is communicated with a water inlet of the methanol engine, and the first PTC heater is used to heat the coolant flowing through the first PTC heater;

[0010] A thermal management module, the water inlet of the thermal management module is connected to the first communication interface, and the water outlet of the thermal management module is connected to the second communication interface. Among them, the first communication interface is the communication interface between the water pump and the first PTC heater, and the second communication interface is the communication interface between the methanol engine and the first PTC heater.

[0011] In one embodiment, the engine heating system further includes:

[0012] A stop valve, the stop valve is arranged between the water pump and the first PTC heater.

[0013] In one embodiment, the thermal management module includes:

[0014] A heater core, the water inlet of the heater core is connected to the water outlet of the water pump, the water outlet of the heater core is connected to the second communication interface, and the heater core is used to heat the vehicle cab.

[0015] In one embodiment, the thermal management module further includes:

[0016] A second PTC heater, the water inlet of the second PTC heater is connected to the first communication interface, the water outlet of the second PTC heater is connected to the water inlet of the heater core, and the second PTC heater is used to heat the coolant flowing through the second PTC heater.

[0017] In one embodiment, the thermal management module further includes:

[0018] A heater three-way valve, the water inlet of the heater three-way valve is connected to the water outlet of the heater core, the first water outlet of the heater three-way valve is connected to the second communication interface, and the second water outlet of the heater three-way valve is connected to the third communication interface. Among them, the third communication interface is the communication interface between the methanol engine and the water pump.

[0019] In one embodiment, the thermal management module includes:

[0020] A water-water heat exchanger, the water inlet of the water-water heat exchanger is connected to the water outlet of the water pump, the water outlet of the water-water heat exchanger is connected to the second communication interface, and the water-water heat exchanger is used to heat the vehicle battery.

[0021] In one embodiment, the thermal management module further includes:

[0022] A third PTC heater, an inlet of the third PTC heater is communicated with the first communication interface, an outlet of the third PTC heater is communicated with an inlet of the water-water heat exchanger, and the third PTC heater is configured to heat the coolant flowing through the third PTC heater.

[0023] In one embodiment, the thermal management module includes a heater core and a water-water heat exchanger;

[0024] An inlet of the heater core is communicated with an inlet of the water-water heat exchanger, the first communication interface is communicated with a fourth communication interface, and the heater core is configured to supply heat to a vehicle cab, wherein the fourth communication interface is a communication interface between the inlet of the heater core and the inlet of the water-water heat exchanger;

[0025] An outlet of the heater core is communicated with an outlet of the water-water heat exchanger, the second communication interface is communicated with a fifth communication interface, and the water-water heat exchanger is configured to heat a vehicle battery, wherein the fifth communication interface is a communication interface between the outlet of the heater core and the outlet of the water-water heat exchanger.

[0026] In one embodiment, the thermal management module further includes a battery three-way valve;

[0027] An inlet of the battery three-way valve is communicated with the first communication interface, a first outlet of the battery three-way valve is communicated with an inlet of the water-water heat exchanger, and a second outlet of the battery three-way valve is communicated with an inlet of the heater core.

[0028] In one embodiment, the thermal management module further includes a second PTC heater;

[0029] An inlet of the second PTC heater is communicated with the first communication interface, an outlet of the second PTC heater is communicated with the fourth communication interface, and the second PTC heater is configured to heat the coolant flowing through the second PTC heater.

[0030] In one embodiment, the thermal management module further includes a heater three-way valve;

[0031] An inlet of the heater three-way valve is communicated with the fourth communication interface, a first outlet of the heater three-way valve is communicated with the second communication interface, and a second outlet of the heater three-way valve is communicated with a third communication interface, wherein the third communication interface is a communication interface between the methanol engine and the water pump.

[0032] In one embodiment, the thermal management module further includes a third PTC heater;

[0033] The water inlet of the third PTC heater is communicated with the fourth communication interface, the water outlet of the third PTC heater is communicated with the water inlet of the water-water heat exchanger, and the third PTC heater is used to heat the coolant flowing through the third PTC heater.

[0034] The present utility model further provides a vehicle, which includes an engine heating system as described in any one of the above.

[0035] The present utility model provides an engine heating system, which includes a methanol engine, a water pump, a first PTC heater and a thermal management module. Coolant is stored in the methanol engine. The water inlet of the methanol engine is communicated with the water outlet of the first PTC heater, the water outlet of the methanol engine is communicated with the water inlet of the water pump, and the water outlet of the water pump is communicated with the water inlet of the first PTC heater. Among them, the first PTC heater is used to heat the coolant flowing through the first PTC heater. The communication interface between the water pump and the first PTC heater is called the first communication interface, and the communication interface between the methanol engine and the first PTC heater is called the second communication interface. The water inlet of the thermal management module is communicated with the first communication interface, and the water outlet of the thermal management module is communicated with the second communication interface.

[0036] In this way, the coolant heated by the first PTC heater flows back into the methanol engine, which can improve the environmental temperature in the methanol engine compartment. That is to say, the methanol engine can heat the coolant through the PTC heater in a low-temperature environment to improve the environmental temperature in the methanol engine compartment, so that the methanol engine can start normally. In addition, the coolant heated by the PTC heater flows through the thermal management module to heat the thermal management module, realizing the cold start of the thermal management module in a low-temperature environment, thereby improving the starting efficiency of the whole vehicle in a low-temperature environment. Description of the Drawings

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0038] Figure 1 It is the first structural schematic diagram of the first embodiment of the engine heating system provided by the present utility model;

[0039] Figure 2 It is the second structural schematic diagram of the first embodiment of the engine heating system provided by the present utility model;

[0040] Figure 3Schematic diagram of the second embodiment of the engine heating system provided by the present utility model;

[0041] Figure 4 Schematic diagram of the third embodiment of the engine heating system provided by the present utility model;

[0042] Figure 5 Schematic diagram of the fourth embodiment of the engine heating system provided by the present utility model.

[0043] Explanation of the reference numerals in the drawings:

[0044] 10, methanol engine; 101, water inlet of the methanol engine; 102, water outlet of the methanol engine; 20, water pump; 201, water inlet of the water pump; 202, water outlet of the water pump; 30, first PTC heater; 301, water inlet of the first PTC heater; 302, water outlet of the first PTC heater; 40, thermal management module; 401, water inlet of the thermal management module; 402, water outlet of the thermal management module; 50, stop valve; A, heater core; A01, water inlet of the heater core; A02, water outlet of the heater core; B, second PTC heater; B01, water inlet of the second PTC heater; B02, water outlet of the second PTC heater; C, heater three-way valve; C01, water inlet of the heater three-way valve; C02, first water outlet of the heater three-way valve; C03, second water outlet of the heater three-way valve; D, water-water heat exchanger; D01, water inlet of the water-water heat exchanger; D02, water outlet of the water-water heat exchanger; E, third PTC heater; E01, water inlet of the third PTC heater; E02, water outlet of the third PTC heater; F, battery three-way valve; F01, water inlet of the battery three-way valve; F02, first water outlet of the battery three-way valve; F03, second water outlet of the battery three-way valve.

[0045] The realization, functional features and advantages of the object of the present utility model will be further described in conjunction with the embodiments with reference to the drawings. Specific embodiments

[0046] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0047] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, then such directional indications are only used to explain the relative positional relationship, movement conditions, etc. between components in a certain specific posture. If this specific posture changes, then the directional indications will also change accordingly.

[0048] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, then such descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "Solution 1 and / or Solution 2" as an example, it includes Solution 1, or Solution 2, or a solution where both Solution 1 and Solution 2 are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0049] The present utility model provides an engine heating system.

[0050] Please refer to Figure 1 , in the first embodiment of the present utility model, the engine heating system includes:

[0051] A methanol engine 10, in which coolant is stored;

[0052] A water pump 20, the water inlet 201 of the water pump 20 is communicated with the water outlet 102 of the methanol engine 10;

[0053] A first PTC heater 30, the water inlet 301 of the first PTC heater 30 is communicated with the water outlet 202 of the water pump 20, the water outlet 302 of the first PTC heater 30 is communicated with the water inlet 101 of the methanol engine 10, and the first PTC heater 30 is used to heat the coolant flowing through the first PTC heater 30;

[0054] A thermal management module 40, the water inlet A01 of the thermal management module 40 is communicated with a first communication interface, the water outlet 402 of the thermal management module 40 is communicated with a second communication interface, wherein, the first communication interface is the communication interface between the water pump 20 and the first PTC heater 30, and the second communication interface is the communication interface between the methanol engine 10 and the first PTC heater 30.

[0055] In this embodiment, the methanol engine 10 includes a water jacket, which is a flow channel for the coolant. The water inlet 201 of the water pump 20 is communicated with the water outlet 102 of the methanol engine 10. The water pump 20 is an electronic water pump. After the water pump 20 is powered on, it can pump the coolant in the methanol engine 10 from the water outlet 102 of the methanol engine 10 to the first PTC (Positive Temperature Coefficient) heater 30. The water inlet 301 of the first PTC heater 30 is communicated with the water outlet 202 of the water pump 20, and the water outlet 302 of the first PTC heater 30 is communicated with the water inlet 101 of the methanol engine 10. The first PTC heater 30 can heat the coolant pumped by the water pump 20 from the methanol engine 10 and transmit the heated coolant back into the methanol engine 10 from the water inlet 101 of the methanol engine 10, thereby raising the ambient temperature in the compartment of the methanol engine 10. Also, the connection interface between the water pump 20 and the first PTC heater 30 is called the first connection interface, and the connection interface between the methanol engine 10 and the first PTC heater 30 is called the second connection interface for distinction. The engine heating system further includes a thermal management module 40. The water inlet A01 of the thermal management module 40 is communicated with the first connection interface, and the water outlet 402 of the thermal management module 40 is communicated with the second connection interface. As the temperature of the coolant in the methanol engine 10 continuously rises, the temperature of the coolant pumped by the water pump 20 from the methanol engine 10 to the thermal management module 40 also gradually increases, thereby heating the thermal management module 40. Among them, the thermal management module 40 at least includes a heater core and / or a water-to-water heat exchanger. The heater core is used to heat the vehicle cab, and the water-to-water heat exchanger is used to heat the vehicle battery.

[0056] In a feasible implementation, a vehicle integrated with the engine heating system of the present application has an engine heating function and a heating function for other thermal management modules. The engine heating system includes an EMS (Engine Management System) and a PMS (Powertrain Management System). The EMS is communicatively connected to a sensor for detecting the real-time ambient temperature. The PMS is communicatively connected to the EMS and is respectively communicatively connected to a water pump 20, a first PTC heater 30, a cut-off valve, a warm air three-way valve, a battery three-way valve, a second PTC heater, and a third PTC heater. When the EMS detects that the coolant temperature in the methanol engine 10 is less than or equal to 25 degrees Celsius and the vehicle is powered on, the vehicle enters the engine preheating state. At this time, the water outlet 102 of the methanol engine 10 is opened, and the EMS automatically sends a heating on request to the PMS. The PMS sends a request for controlling the duty ratio of the water pump 20 to 90% and a request for controlling the first PTC heater 30 to turn on to the engine heating system. The engine heating system controls the duty ratio of the water pump 20 to 90% based on the request sent by the PMS and controls the first PTC heater 30 to start. That is, the water pump 20 starts to draw the coolant in the methanol engine 10 from the water outlet 101 of the methanol engine 10. The coolant flows through the water outlet 202 of the water pump 20 to the water inlet 301 of the first PTC heater 30 and the water inlet A01 of the thermal management module 40, and then the first PTC heater 30 heats the flowing coolant. The heated coolant returns to the methanol engine 10 through the water outlet 302 of the first PTC heater 30, and so on in a cycle. When it is detected that the coolant temperature in the methanol engine 10 is greater than or equal to 70 degrees Celsius, the PMS automatically sends a request for controlling the duty ratio of the water pump 20 to 20% and a request for controlling the first PTC heater to turn off to the engine heating system. The engine heating system controls the duty ratio of the water pump 20 to 20% based on the request sent by the PMS and controls the first PTC heater 30 to turn off. It should be noted that, as obtained from experiments, when the temperature of the coolant in the methanol engine 10 reaches 70 degrees Celsius, the methanol in the methanol engine 10 can be ignited, that is, the methanol engine 10 can be started normally. Therefore, after it is detected that the coolant in the methanol engine 10 reaches 70 degrees Celsius, the duty ratio of the water pump 20 is automatically controlled to decrease to 20%, and the first PTC heater 30 is controlled to stop heating.

[0057] In this embodiment, referring to Figure 2 , the engine heating system further includes:

[0058] A cut-off valve 50, and the cut-off valve 50 is disposed between the water pump 20 and the first PTC heater 30.

[0059] The default state of the stop valve 50 is closed. The stop valve 50 is arranged on the pipeline between the water pump 20 and the first PTC heater 30 and is used to control the on-off of the pipeline between the water pump 20 and the first PTC heater 30.

[0060] In a feasible embodiment, after detecting that the temperature of the coolant in the methanol engine 10 is less than or equal to 20 degrees Celsius and the vehicle is powered on, the EMS automatically sends a heating on request to the PMS. The PMS sends a request for controlling the opening of the stop valve 50 to the engine heating system. The engine heating system controls the opening of the stop valve 50 based on the instruction sent by the PMS, so that the coolant output by the water pump 20 can flow into the first PTC heater 30 for heating. After detecting that the temperature of the coolant in the methanol engine 10 is greater than or equal to 70 degrees Celsius, the methanol engine 10 starts normally. The BMS automatically sends a heating off request to the PMS. The PMS automatically sends a request for controlling the closing of the stop valve 50 to the engine heating system. The engine heating system controls the closing of the stop valve 50 based on the request sent by the PMS. At this time, the first PTC heater 30 stops heating, so that the coolant output from the hot water outlet 103 of the methanol engine 10 all flows into the thermal management module 40 through the water pump 20.

[0061] It should be noted that in this embodiment, the water outlet 102 of the methanol engine 10 at least includes a preheating water outlet and a hot water outlet. Among them, the preheating water outlet is used to communicate with the water inlet 201 of the water pump 20 when the temperature of the coolant inside the methanol engine 10 is less than 70 degrees Celsius. That is, when the temperature of the coolant inside the methanol engine 10 is less than 70 degrees Celsius, the water pump 20 pumps out the coolant from the methanol engine 10 through the preheating water outlet. The hot water outlet is used to communicate with the water inlet of the water pump 20 when the temperature of the coolant inside the methanol engine 10 is greater than or equal to 70 degrees Celsius. That is, when the temperature of the coolant inside the methanol engine 10 is greater than or equal to 70 degrees Celsius, the water pump 20 pumps out the coolant from the methanol engine 10 through the hot water outlet.

[0062] This embodiment provides an engine heating system. The engine heating system includes a methanol engine, a water pump, a first PTC heater, and a thermal management module. The methanol engine stores coolant. The water inlet of the methanol engine is communicated with the water outlet of the first PTC heater. The water outlet of the methanol engine is communicated with the water inlet of the water pump. The water outlet of the water pump is communicated with the water inlet of the first PTC heater. Among them, the first PTC heater is used to heat the coolant flowing through the first PTC heater. The connection interface between the water pump and the first PTC heater is called the first connection interface. The connection interface between the methanol engine and the first PTC heater is called the second connection interface. The water inlet of the thermal management module is communicated with the first connection interface. The water outlet of the thermal management module is communicated with the second connection interface.

[0063] In this way, the coolant heated by the first PTC heater flows back into the methanol engine, which can increase the ambient temperature in the methanol engine compartment. That is to say, the methanol engine can heat the coolant through the PTC heater in a low-temperature environment to increase the ambient temperature in the methanol engine compartment, so that the methanol engine can be started normally. In addition, the coolant heated by the PTC heater flows through the thermal management module to heat the thermal management module, realizing the cold start of the thermal management module in a low-temperature environment, thereby improving the starting efficiency of the whole vehicle in a low-temperature environment.

[0064] In addition, since there are usually two ways to solve the problem of low-temperature cold start of methanol engines at present. The first is to ignite gasoline at low temperature, heat the whole engine and then switch to methanol fuel; the second is to add a set of diesel heating equipment outside the whole engine, first heat the whole engine with diesel and then switch to methanol fuel. These two schemes will add a second set of fuel supply equipment or heating equipment on the basis of using methanol fuel, increasing the emission limit of the whole vehicle, and increasing the space cost and financial cost of the whole vehicle. Therefore, in this application, the PTC heater is used to heat the coolant in the methanol engine 10 to increase the ambient temperature in the methanol engine 10 compartment, which can not only save the layout space in the vehicle, reduce the weight of the whole vehicle, but also reduce the cost of the whole vehicle and improve the product competitiveness. In addition, due to the integrated thermal management system, platformized and modular parts are realized, which can adapt to subsequent different product developments.

[0065] Further, referring to Figure 3 , in the second embodiment of the present utility model, the thermal management module 40 further includes:

[0066] A warm air core body A, the water inlet A01 of the warm air core body A is communicated with the water outlet 202 of the water pump 20, the water outlet A02 of the warm air core body A is communicated with the second communication interface, and the warm air core body A is used for heating the vehicle cab.

[0067] In this embodiment, the warm air core body A is used to provide warm air for the cab of the vehicle. The water inlet A01 of the warm air core body A is communicated with the water outlet 202 of the water pump 20, so that the water pump 20 extracts the coolant from the water outlet 102 of the methanol engine 10, and the coolant output from the water outlet 202 of the water pump 20 enters the warm air core body A through the water inlet A01 of the warm air core body A. The water outlet A02 of the warm air core body A is communicated with the second communication interface, so that the coolant output from the water outlet A02 of the warm air core body A flows back into the methanol engine 10.

[0068] In a feasible embodiment, when the temperature of the coolant in the methanol engine 10 is detected to be greater than or equal to 60 degrees Celsius, the water pump 20 extracts the coolant in the methanol engine 10 from the water outlet 102 of the methanol engine 10, and the coolant output from the water outlet 202 of the water pump 20 flows into the water inlet A01 of the heater core A. Since the temperature of the coolant flowing into the heater core A is greater than or equal to 60 degrees Celsius at this time, the heater core A can provide warm air for the vehicle cab. It should be noted that after the methanol engine 10 is normally started, the temperature of the coolant in the methanol engine 10 is maintained between 60 degrees Celsius and 70 degrees Celsius, that is, the coolant in the operating methanol engine 10 can continuously provide hot water for the heater core A, so that the heater core A can provide warm air for the vehicle cab.

[0069] In this embodiment, the thermal management module 40 further includes:

[0070] A second PTC heater B, the water inlet B01 of the second PTC heater B is communicated with the first communication interface, the water outlet B02 of the second PTC heater B is communicated with the water inlet A01 of the heater core A, and the second PTC heater B is used to heat the coolant flowing through the second PTC heater B.

[0071] In this embodiment, the water inlet B01 of the second PTC heater B is communicated with the first communication interface, the water outlet B02 of the second PTC heater B is communicated with the water inlet A01 of the heater core A, and the second PTC heater B is used to heat the coolant flowing through the second PTC heater B.

[0072] In a feasible embodiment, the second PTC heater B can heat the coolant flowing from the water pump 20 into the second PTC heater B, and the heated coolant flows into the heater core A to supply warm air for the cab of the vehicle by the heater core A.

[0073] In this embodiment, the thermal management module 40 further includes:

[0074] A warm air three-way valve C, the water inlet C01 of the warm air three-way valve C is communicated with the water outlet A02 of the heater core A, the first water outlet C02 of the warm air three-way valve C is communicated with the second communication interface, and the second water outlet C03 of the warm air three-way valve C is communicated with the third communication interface, where the third communication interface is the communication interface between the methanol engine 10 and the water pump 20.

[0075] It should be noted that the water outlet of the methanol engine 10 is communicated with the water inlet of the water pump 20, and the communication interface between the methanol engine 10 and the water pump 20 is called the third communication interface for distinction.

[0076] In this embodiment, the warm air three-way valve C includes a water inlet C01, a first water outlet C02, and a second water outlet C03. The water inlet C01 of the warm air three-way valve C is connected to the water outlet A02 of the warm air core A, the first water outlet C02 of the warm air three-way valve C is connected to the second communication interface, and the second water outlet C03 of the warm air three-way valve C is connected to the third communication interface.

[0077] In a feasible implementation, the default state of the warm air three-way valve C is that the water inlet C01 and the second water outlet C02 are connected. After detecting that the coolant temperature in the methanol engine 10 is greater than or equal to 60 degrees Celsius, the PMS sends a request for controlling the water inlet C01 and the first water outlet C02 of the warm air three-way valve C to be connected to the engine heating system. The engine heating system controls the water inlet C01 of the warm air three-way valve C to be connected to the first water outlet C02 of the warm air three-way valve C based on the request sent by the PMS, so that the coolant output from the water outlet A02 of the warm air core A flows back to the methanol engine 10.

[0078] In this way, the embodiment of the present application pumps coolant out of the methanol engine 10 through the water pump 20 to heat the pumped coolant, and allows the heated coolant to circulate in the pipeline to heat the heater core A in the thermal management module, thereby realizing the engine heating function and the cab heating function.

[0079] Further, refer to Figure 4 In the second embodiment of the present utility model, the thermal management module 40 further includes:

[0080] A water-to-water heat exchanger D, wherein the water inlet D01 of the water-to-water heat exchanger D is connected to the water outlet 202 of the water pump 20, and the water outlet D02 of the water-to-water heat exchanger D is connected to the second connecting interface. The water-to-water heat exchanger D is used to heat the vehicle battery.

[0081] In this embodiment, the water-to-water heat exchanger D is used to preheat the battery of the vehicle. The water inlet D01 of the water-to-water heat exchanger D is connected to the water outlet 202 of the water pump 20, so that the coolant output from the water outlet 202 of the water pump 20 enters the water-to-water heat exchanger D through the water inlet D01 of the water-to-water heat exchanger D. The water outlet D02 of the water-to-water heat exchanger D is connected to the second communication interface, so that the coolant output from the water outlet D02 of the water-to-water heat exchanger D flows back to the methanol engine 10.

[0082] In one feasible embodiment, after detecting that the temperature of the coolant in the methanol engine 10 is greater than or equal to 70 degrees Celsius, the methanol engine 10 starts normally, the duty cycle of the water pump 20 is reduced to 20%, and the water pump 20 pumps coolant from the methanol engine 10 to the water-to-water heat exchanger D, so that the water-to-water heat exchanger D heats the vehicle battery.

[0083] In this embodiment, the thermal management module 40 further includes:

[0084] A third PTC heater E, the water inlet E01 of the third PTC heater E is connected to the first communication interface, the water outlet E02 of the third PTC heater E is connected to the water inlet D01 of the water-water heat exchanger D, and the third PTC heater E is used to heat the coolant flowing through the third PTC heater E.

[0085] In this embodiment, the water inlet E01 of the third PTC heater E is connected to the first communication interface, the water outlet E02 of the third PTC heater E is connected to the water inlet D01 of the water-water heat exchanger D, and the third PTC heater E is used to heat the coolant flowing through the third PTC heater E.

[0086] In a feasible implementation manner, the third PTC heater E heats the coolant output by the water pump 20, and the heated coolant flows into the water-water heat exchanger D to supply the water-water heat exchanger D to preheat the vehicle battery.

[0087] In this way, in the embodiment of the present application, the coolant is pumped out from the methanol engine 10 by the water pump 20 to heat the pumped coolant, and the heated coolant is circulated in the pipeline to heat the water-water heat exchanger D in the thermal management module 40, so as to realize the engine heating function and the vehicle battery preheating function.

[0088] Further, referring to Figure 5 , in the fourth embodiment of the present utility model, the thermal management module 40 includes a heater core A and a water-water heat exchanger D;

[0089] The water inlet A01 of the heater core A is connected to the water inlet D01 of the water-water heat exchanger D, the first communication interface is connected to the fourth communication interface, and the heater core A is used to heat the vehicle cab, wherein the fourth communication interface is the communication interface between the water inlet A01 of the heater core A and the water inlet D01 of the water-water heat exchanger D;

[0090] The water outlet A02 of the heater core A is connected to the water outlet D02 of the water-water heat exchanger D, the second communication interface is connected to the fifth communication interface, and the water-water heat exchanger D is used to heat the vehicle battery, wherein the fifth communication interface is the communication interface between the water outlet A02 of the heater core A and the water outlet D02 of the water-water heat exchanger D.

[0091] It should be noted that the water inlet A01 of the warm air core A is connected to the water inlet D01 of the water-water heat exchanger D, and the connection interface between the water inlet A01 of the warm air core A and the water inlet D01 of the water-water heat exchanger D is called the fourth connection interface for distinction; the water outlet A02 of the warm air core A is connected to the water outlet D02 of the water-water heat exchanger D, and the connection interface between the water outlet A02 of the warm air core A and the water outlet D02 of the water-water heat exchanger D is called the fifth connection interface for distinction.

[0092] In this embodiment, the thermal management module 40 includes a warm air core A and a water-water heat exchanger D. Among them, the water inlet A01 of the warm air core A is connected to the water inlet D01 of the water-water heat exchanger D, and the first connection interface is connected to the fourth connection interface, so that the coolant pumped by the water pump 20 can be input from the fourth connection interface into the warm air core A and the water-water heat exchanger D. The warm air core A is used to heat the vehicle cab; the water outlet A02 of the warm air core A is connected to the water outlet D02 of the water-water heat exchanger D, and the second connection interface is connected to the fifth connection interface, so that the coolant flowing out from the water outlet A02 of the warm air core A can flow back into the methanol engine 10. The water-water heat exchanger D is used to heat the vehicle battery.

[0093] In a feasible implementation manner, when it is detected that the temperature of the coolant in the methanol engine 10 is less than or equal to 20 degrees Celsius and the vehicle is powered on, the EMS automatically sends a heating on request to the PMS. The PMS sends a request for controlling the opening of the stop valve 50 to the engine heating system. The engine heating system controls the opening of the stop valve 50 based on the instruction issued by the PMS, so that the coolant output by the water pump 20 can flow into the first PTC heater 30 for heating. After it is detected that the temperature of the coolant in the methanol engine 10 is greater than or equal to 70 degrees Celsius, the methanol engine 10 starts normally. The BMS automatically sends a heating off request to the PMS. The PMS automatically sends a request for controlling the closing of the stop valve 50 to the engine heating system. The engine heating system controls the closing of the stop valve 50 based on the request issued by the PMS. At this time, the first PTC heater 30 stops heating, so that the coolant output from the hot water outlet 103 of the methanol engine 10 all flows through the water pump 20 into the warm air core A and the water-water heat exchanger 60, and flows back into the methanol engine from the warm air core and the water-water heat exchanger, that is, it circulates in the pipeline.

[0094] In this embodiment, the thermal management module further includes a battery three-way valve F;

[0095] The water inlet F01 of the battery three-way valve F is connected to the first connection interface. The first water outlet F02 of the battery three-way valve F is connected to the water inlet D01 of the water-water heat exchanger D. The second water outlet F03 of the battery three-way valve F is connected to the water inlet A01 of the warm air core A.

[0096] In this embodiment, the battery three-way valve F includes a water inlet F01, a first water outlet F02, and a second water outlet F03. The water inlet F01 of the battery three-way valve F is communicated with the first communication interface. The first water outlet F02 of the battery three-way valve F is communicated with the water inlet D01 of the water-water heat exchanger D. The second water outlet F03 of the battery three-way valve F is communicated with the water inlet A01 of the heater core A.

[0097] In a feasible embodiment, the default state of the battery three-way valve F is that the water inlet F01 and the second water outlet F03 are conducted. When it is detected that the temperature of the coolant in the methanol engine 10 is greater than or equal to 60 degrees Celsius, the PMS sends a request for controlling the conduction between the water inlet F01 and the first water outlet F02 of the battery three-way valve F to the engine heating system. The engine heating system controls the conduction between the water inlet F01 and the first water outlet F02 of the battery three-way valve F based on the request sent by the PMS, so that the coolant output by the water pump 20 flows through the battery three-way valve F into the heater core A. When it is detected that the temperature of the coolant in the methanol engine 10 is greater than or equal to 70 degrees Celsius, the PMS sends a request for controlling the conduction between the water inlet F01 and the first water outlet F02 and the second water outlet F03 of the battery three-way valve F to the engine heating system. The engine heating system controls the conduction between the water inlet F01 and the first water outlet F02 and the second water outlet F03 of the battery three-way valve F based on the request sent by the PMS, so that the coolant output by the water pump 20 flows through the battery three-way valve F into the heater core A and the water-water heat exchanger D. After it is detected that the cell temperature of the vehicle battery is greater than or equal to 45 degrees Celsius, the BMS sends a battery heating off request to the PMS. The PMS sends a request for controlling the conduction between the water inlet F01 and the second water outlet F03 of the battery three-way valve F to the engine heating system. The engine heating system controls the conduction between the water inlet F01 and the second water outlet F03 of the battery three-way valve F, so that the coolant output by the water pump 20 flows through the battery three-way valve F into the heater core A and prevents the coolant output by the water pump 20 from flowing into the water-water heat exchanger D.

[0098] In this embodiment, the thermal management module further includes a second PTC heater B;

[0099] The water inlet B01 of the second PTC heater B is communicated with the first communication interface. The water outlet B02 of the second PTC heater B is communicated with the fourth communication interface. The second PTC heater B is used to heat the coolant flowing through the second PTC heater B.

[0100] In this embodiment, the water inlet B01 of the second PTC heater B is communicated with the first communication interface. The water outlet B02 of the second PTC heater B is communicated with the fourth communication interface. The second PTC heater B is used to heat the coolant flowing through the second PTC heater B.

[0101] In a feasible embodiment, the second PTC heater B can heat the coolant flowing into the second PTC heater B from the water pump 20. The heated coolant flows into the heater core A and / or the water-water heat exchanger D through the battery three-way valve F, so that the heater core A provides heating for the cab of the vehicle and / or the water-water heat exchanger D preheats the vehicle battery. In addition, when the thermal management module includes the battery three-way valve F, the water outlet B02 of the second PTC heater B is communicated with the water inlet F01 of the battery three-way valve F.

[0102] In this embodiment, the thermal management module further includes a heater three-way valve C;

[0103] The water inlet C01 of the heater three-way valve C is communicated with the fifth communication interface, the first water outlet C02 of the heater three-way valve C is communicated with the second communication interface, and the second water outlet C03 of the heater three-way valve C is communicated with the third communication interface, where the third communication interface is the communication interface between the methanol engine 10 and the water pump 20.

[0104] It should be noted that the water outlet 102 of the methanol engine 10 is communicated with the water inlet 201 of the water pump 20, and the communication interface between the methanol engine 10 and the water pump 20 is called the third communication interface.

[0105] In this embodiment, the heater three-way valve C includes a water inlet C01, a first water outlet C02 and a second water outlet C02. The water inlet C01 of the heater three-way valve C is communicated with the fifth communication interface, the first water outlet C02 of the heater three-way valve C is communicated with the second communication interface, and the second water outlet C03 of the heater three-way valve C is communicated with the third communication interface.

[0106] In a feasible embodiment, the default state of the heater three-way valve C is that the water inlet C01 and the second water outlet C03 are conducted. After detecting that the coolant temperature in the methanol engine 10 is greater than or equal to 60 degrees Celsius, the PMS sends a request for controlling the water inlet C01 of the heater three-way valve C to be conducted with the first water outlet C02 to the engine heating system, and the engine heating system controls the water inlet C01 of the heater three-way valve C to be conducted with the first water outlet C02 based on the request sent by the PMS, so that the coolant output from the water outlet C02 of the heater core A and the water outlet D02 of the water-water heat exchanger D flows back into the methanol engine 10.

[0107] In this embodiment, the thermal management module further includes a third PTC heater E;

[0108] The water inlet E01 of the third PTC heater E is communicated with the fourth communication interface, and the water outlet E02 of the third PTC heater E is communicated with the water inlet D01 of the water-water heat exchanger D. The third PTC heater E is used to heat the coolant flowing through the third PTC heater E.

[0109] In this embodiment, the water inlet E01 of the third PTC heater E is communicated with the fourth communication interface, the water outlet E02 of the third PTC heater E is communicated with the water inlet D01 of the water-water heat exchanger D, and the third PTC heater E is used to heat the coolant flowing through the third PTC heater E.

[0110] In a feasible implementation manner, the water inlet E01 of the third PTC heater E is communicated with the first water outlet F02 of the battery three-way valve F, and is used to heat the coolant flowing through the third PTC heater E when the water inlet F01 of the battery three-way valve F is communicated with the first water outlet F02 of the battery three-way valve F. The heated coolant flows into the water-water heat exchanger D to supply the water-water heat exchanger D to preheat the vehicle battery.

[0111] Thus, in this embodiment, the warm air three-way valve C, the cut-off valve 50 and the battery three-way valve F are provided in the engine heating system. By switching the conduction mode of the warm air three-way valve C, the heat of the coolant in the methanol engine 10 is used to supply heat to the warm air core A and the water-water heat exchanger D; by switching the opening and closing state of the cut-off valve 50, the first PTC heater 30 is used to heat the coolant in the methanol engine 10; by switching the conduction mode of the battery three-way valve F, it is controlled whether to use the heat of the coolant in the methanol engine 10 to supply heat to the warm air core A and the water-water heat exchanger D, so as to realize the heating function of the methanol engine 10, the cab heating function and the vehicle battery heating function. And, in this embodiment, the second PTC heater B and the third PTC heater E are provided in the engine heating system to heat the coolant flowing out of the water pump 20, and the heated coolant can flow to the warm air core A and the water-water heat exchanger D, thereby improving the efficiency of heating the vehicle cab and preheating the vehicle battery.

[0112] The present invention also proposes a vehicle integrated with an engine heating system. The specific structure of the engine heating system refers to the above embodiment. Since this vehicle adopts all the technical solutions of the above all embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated one by one here.

[0113] The above are only exemplary embodiments of the present utility model, and do not thus limit the patent scope of the present utility model. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields is included within the patent protection scope of the present utility model.

Claims

1. An engine heating system, characterized in that: The engine heating system comprises: A methanol engine, wherein a coolant is stored in the methanol engine; A water pump, wherein a water inlet of the water pump is connected to a water outlet of the methanol engine; a first PTC heater, wherein a water inlet of the first PTC heater is communicated with a water outlet of the water pump, a water outlet of the first PTC heater is communicated with a water inlet of the methanol engine, and the first PTC heater is used to heat the coolant flowing through the first PTC heater; A thermal management module, wherein a water inlet of the thermal management module is connected to a first communication interface, and a water outlet of the thermal management module is connected to a second communication interface, wherein the first communication interface is a communication interface between the water pump and the first PTC heater, and the second communication interface is a communication interface between the methanol engine and the first PTC heater.

2. The engine heating system according to claim 1, characterized in that: The engine heating system further comprises: A stop valve is provided between the water pump and the first PTC heater.

3. The engine heating system according to claim 1, characterized in that: The thermal management module comprises: A heater core, wherein the water inlet of the heater core is communicated with the water outlet of the water pump, the water outlet of the heater core is communicated with the second communication interface, and the heater core is used for heating the vehicle cab.

4. The engine heating system according to claim 3, characterized in that: The thermal management module further comprises: The second PTC heater, the water inlet of the second PTC heater is connected to the first connecting interface, the water outlet of the second PTC heater is connected to the water inlet of the heater core, and the second PTC heater is used to heat the coolant flowing through the second PTC heater.

5. The engine heating system according to claim 4, characterized in that: The thermal management module further comprises: A warm air three-way valve, the water inlet of the warm air three-way valve is connected to the water outlet of the warm air core, the first water outlet of the warm air three-way valve is connected to the second connecting interface, the second water outlet of the warm air three-way valve is connected to the third connecting interface, wherein the third connecting interface is the connecting interface between the methanol engine and the water pump.

6. The engine heating system according to claim 1, characterized in that: The thermal management module comprises: A water-to-water heat exchanger, wherein the water inlet of the water-to-water heat exchanger is connected to the water outlet of the water pump, the water outlet of the water-to-water heat exchanger is connected to the second connecting interface, and the water-to-water heat exchanger is used to heat the vehicle battery.

7. The engine heating system according to claim 6, characterized in that: The thermal management module further comprises: A third PTC heater, wherein the water inlet of the third PTC heater is connected to the first connecting interface, the water outlet of the third PTC heater is connected to the water inlet of the water-to-water heat exchanger, and the third PTC heater is used to heat the coolant flowing through the third PTC heater.

8. The engine heating system according to claim 1, characterized in that: The thermal management module includes a heater core and a water-to-water heat exchanger; The water inlet of the heater core is in communication with the water inlet of the water-to-water heat exchanger, the first communication interface is in communication with the fourth communication interface, the heater core is used to heat the vehicle cab, wherein the fourth communication interface is a communication interface between the water inlet of the heater core and the water inlet of the water-to-water heat exchanger; The water outlet of the heater core is connected to the water outlet of the water-to-water heat exchanger, and the second connecting interface is connected to the fifth connecting interface. The water-to-water heat exchanger is used to heat the vehicle battery, wherein the fifth connecting interface is the connecting interface between the water outlet of the heater core and the water outlet of the water-to-water heat exchanger.

9. The engine heating system according to claim 8, characterized in that: The thermal management module also includes a battery three-way valve; The water inlet of the battery three-way valve is connected to the first connecting interface, the first water outlet of the battery three-way valve is connected to the water inlet of the water-to-water heat exchanger, and the second water outlet of the battery three-way valve is connected to the water inlet of the heater core.

10. The engine heating system according to claim 8, characterized in that: The thermal management module also includes a second PTC heater; The water inlet of the second PTC heater is communicated with the first communication interface, the water outlet of the second PTC heater is communicated with the fourth communication interface, and the second PTC heater is used to heat the coolant flowing through the second PTC heater.

11. The engine heating system according to claim 10, characterized in that: The thermal management module also includes a warm air three-way valve; The water inlet of the warm air three-way valve is connected to the fourth connecting interface, the first water outlet of the warm air three-way valve is connected to the second connecting interface, and the second water outlet of the warm air three-way valve is connected to the third connecting interface, wherein the third connecting interface is the connecting interface between the methanol engine and the water pump.

12. The engine heating system according to claim 8, characterized in that: The thermal management module also includes a third PTC heater; The water inlet of the third PTC heater is communicated with the fourth communication interface, the water outlet of the third PTC heater is communicated with the water inlet of the water-to-water heat exchanger, and the third PTC heater is used to heat the coolant flowing through the third PTC heater.

13. A vehicle, characterized in that: The vehicle comprises an engine heating system as claimed in any one of claims 1-12.

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