Methanol engine cold starting device and method, electronic equipment and vehicle

Abstract

The embodiment of the invention provides a methanol engine cold starting device and method, electronic equipment and a vehicle, the device comprises a heating device, and the heating device is used for heating the methanol engine when the initial cooling liquid temperature of the methanol engine is smaller than a first preset cooling liquid temperature threshold value and the initial SOC information of a battery is smaller than a first preset SOC threshold value. And cooling liquid in the methanol engine is heated to a second preset cooling liquid temperature threshold value. According to the embodiment of the invention, the problem of high cost of cold start of the methanol engine in the prior art can be solved.

Description

Technical Field

[0001] The present application relates to the field of engines, and in particular to a methanol engine cold start device, method, electronic equipment and vehicle. Background Art

[0002] Currently, hybrid vehicles or extended-range vehicles equipped with port fuel injection (PFI) engines all use gasoline for starting. During startup, the engine coolant temperature reaches a certain temperature before switching to methanol operation. The low-temperature cold start problem is an important issue facing methanol fuel engines.

[0003] In the prior art, intake air heating, in-cylinder mixture heating, fuel heating and other methods are usually used to solve the cold start problem of methanol engines. When the above methods are used to solve the cold start problem, auxiliary facilities are often required, such as: fuel rail heating, injector heating, intake air heating and air-assisted atomization device.

[0004] Therefore, a low-cost methanol engine cold start solution is urgently needed. Summary of the invention

[0005] In order to solve the above technical problems, the embodiments of the present invention provide a methanol engine cold start device, method, electronic equipment and vehicle to solve the problem of high cost of cold start of methanol engines in the prior art.

[0006] According to a first aspect of an embodiment of the present application, a methanol engine cold start device is provided, comprising: a heating device, the heating device being used to heat the coolant in the methanol engine to a second preset coolant temperature threshold when the initial coolant temperature of the methanol engine is less than a first preset coolant temperature threshold and the initial SOC information of the battery is less than the first preset SOC threshold.

[0007] In one embodiment, the heating device is used to heat the methanol engine within a preset heating time, and the preset heating time is determined based on the difference between the initial coolant temperature and the second preset coolant temperature threshold and the heating parameters of the heating device.

[0008] In one embodiment, the heating device is connected in series in the small circulation system of the methanol engine coolant.

[0009] According to a second aspect of an embodiment of the present application, a methanol engine cold start method is provided, the method comprising:

[0010] Obtain the initial coolant temperature information of the methanol engine and the initial SOC information of the battery;

[0011] If the initial coolant temperature information of the methanol engine is less than the first preset coolant temperature threshold, and the initial SOC information of the battery is less than the first preset SOC threshold, sending a first instruction to enable the heating device to heat to a second preset coolant temperature threshold;

[0012] If the current coolant temperature information of the methanol engine meets the preset start condition, a second instruction is sent to enable the methanol engine to start the cold start mode.

[0013] In one embodiment, if the current coolant temperature information of the methanol engine meets the preset start condition, sending a second instruction to enable the methanol engine to start the cold start mode includes:

[0014] Get ambient temperature information;

[0015] If the current coolant temperature information of the methanol engine is greater than the second coolant temperature preset threshold, and the ambient temperature information is greater than the first ambient temperature preset threshold, a second instruction is sent to enable the methanol engine to start the cold start mode.

[0016] In one embodiment, if the current coolant temperature information of the methanol engine meets the preset start condition, sending a second instruction to enable the methanol engine to start the cold start mode includes:

[0017] If the current coolant temperature information of the methanol engine is greater than the third coolant temperature threshold, and the ambient temperature information is less than the first ambient temperature preset threshold, a second instruction is sent to enable the methanol engine to start the cold start mode; the third coolant temperature threshold is greater than the second coolant temperature preset threshold.

[0018] In one embodiment, the method further comprises:

[0019] Get the vehicle's operating mode;

[0020] If the vehicle is in the air conditioning heating mode, a second instruction is sent to enable the methanol engine to start the cold start mode.

[0021] In one embodiment, sending a first instruction to heat the heating water tank to a second preset coolant temperature threshold includes:

[0022] Obtaining heating parameters of the heating device;

[0023] Determine the heating time of the heating device according to the heating parameters;

[0024] A first instruction is sent to enable the heating device to perform heating within a heating time period.

[0025] In one embodiment, the method further comprises:

[0026] Get battery type and capacity information;

[0027] A first preset SOC threshold is determined according to the battery type and capacity information.

[0028] According to a third aspect of an embodiment of the present application, an electronic device is provided, the electronic device including a memory and a processor;

[0029] The memory is connected to the processor and is used for storing programs;

[0030] The processor is used to implement the methanol engine cold start method provided by the first aspect or any embodiment of the first aspect by running the program in the memory.

[0031] According to a fourth aspect of the embodiment of the present application, a vehicle is provided, the vehicle comprising: a heating device, a water pump, a methanol engine and the electronic device as in the third aspect;

[0032] The electronic device is connected to the heating device;

[0033] The heating device is used to heat the coolant in the methanol engine through the water pump.

[0034] The cold start device, method, electronic device and vehicle of a methanol engine provided by the embodiment of the present invention heat the coolant in the methanol engine to a second preset coolant temperature threshold value by adding a heating device when the initial coolant temperature of the methanol engine is less than the first preset coolant temperature threshold value and the initial SOC information of the battery is less than the first preset SOC threshold value. The embodiment of the present invention only needs to add a low-cost heating device to realize the cold start of the methanol engine through logical control without other auxiliary facilities, and realizes the cold start of the methanol engine at a low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0036] Figure 1 A schematic diagram of an implementation environment according to the present invention;

[0037] Figure 2 A flow chart of a methanol engine cold start method provided by an embodiment of the present invention;

[0038] Figure 3 A structural block diagram of a methanol engine cold starting device provided by an embodiment of the present invention;

[0039] Figure 4A structural diagram of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0041] Currently, hybrid vehicles or extended-range vehicles equipped with port fuel injection (PFI) engines all use gasoline for starting. During startup, the engine coolant temperature reaches a certain temperature before switching to methanol operation. The low-temperature cold start problem is an important issue facing methanol fuel engines.

[0042] In the prior art, intake air heating, in-cylinder mixture heating, fuel heating, etc. are usually used to solve the cold start problem of methanol engines. When the above methods are used to solve the cold start problem, auxiliary facilities are often required, such as fuel rail heating, injector heating, intake air heating, and air-assisted atomization device. Therefore, a low-cost solution for cold start of methanol engines is urgently needed.

[0043] The cold start device, method, electronic device and vehicle of a methanol engine provided by the embodiment of the present invention heat the coolant in the methanol engine to a second preset coolant temperature threshold value by adding a heating device when the initial coolant temperature of the methanol engine is less than the first preset coolant temperature threshold value and the initial SOC information of the battery is less than the first preset SOC threshold value. The embodiment of the present invention only needs to add a low-cost heating device to realize the cold start of the methanol engine through logical control without other auxiliary facilities, and realizes the cold start of the methanol engine at a low cost.

[0044] Exemplary Implementation Environment

[0045] Please refer to Figure 1 , Figure 1 It is a schematic diagram of an implementation environment involved in the present invention.

[0046] like Figure 1As shown, the implementation environment involves vehicles. Among them, the vehicle can be equipped with an engine management system (EMS), which communicates with the engine control unit (ECU) through the CAN bus to control fuel injection, ignition timing, etc. The ECU can also obtain the vehicle's SOC information, engine coolant temperature information, intake air temperature, start request and other information through the EMS. The ECU obtains the engine coolant temperature and battery SOC information to determine whether to heat the engine through the heating device, and turns on the cold start mode when the preset conditions are met.

[0047] Exemplary Devices

[0048] In an exemplary embodiment, the methanol engine cold start device includes a heating device, which is used to heat the coolant in the methanol engine to a second preset coolant temperature threshold when the initial coolant temperature of the methanol engine is less than the first preset coolant temperature threshold and the initial SOC information of the battery is less than the first preset SOC threshold.

[0049] The heating device in the embodiment of the present invention is used to heat the cooling in the methanol engine. The heating device can be an electrically heated expansion water tank, which is heated by a built-in heating element and can accommodate water that expands due to temperature increase. When the temperature of the coolant in the methanol engine increases, the volume of the expansion water tank expands, and the excess coolant will flow into the expansion water tank. When the temperature of the coolant in the methanol engine drops, the volume of the expansion water tank shrinks, and the expansion water tank will replenish the coolant back to the cooling system. The expansion water tank used in the embodiment of the present invention can maintain the pressure balance in the system and ensure the stable operation of the system. In addition, due to the compact structure of the expansion water tank, it occupies a small space and is easy to install and maintain.

[0050] In practical applications, the expansion water tank can adopt a resistance type expansion water tank, that is, when current flows through the resistance wire, the resistance wire will generate heat, and the coolant in the methanol engine can be circulated and heated through a water pump to increase the temperature of the methanol engine coolant.

[0051] In one embodiment, the heating device is used to heat the methanol engine within a preset heating time, and the preset heating time is determined based on the difference between the initial coolant temperature and the second preset coolant temperature threshold and the heating parameters of the heating device.

[0052] The preset heating time is determined based on the difference between the initial coolant temperature and the second preset coolant temperature threshold and the heating parameters of the heating device, including:

[0053] determining a heating amount based on a difference between the initial coolant temperature and a second preset coolant temperature;

[0054] The heating time is determined based on the heating amount and heating parameters.

[0055] When determining the heating heat, it can be determined based on the following formula:

[0056] Q=m*c*(T1-T2)

[0057] Among them, Q is the heating heat, unit: joule, m is the mass of the coolant in the methanol engine, unit: kilogram, c is the specific heat capacity of the coolant in the methanol engine, unit: joule / kilogram·degrees Celsius, T1 is the second preset coolant temperature, T2 is the initial coolant temperature, unit: degrees Celsius, and t is the heating time, unit: seconds.

[0058] When the heating device is a resistive expansion tank, the heating parameters may include a resistance value and a current value. The heating power may be determined according to the heating parameters according to the following formula:

[0059] P=I 2 R

[0060] Wherein, P is the heating power, unit: watt, I is the current flowing through the resistance wire, unit: ampere; R is the resistance value of the resistance wire, unit: ohm.

[0061] The heating time can be determined according to Joule's law Q=Pt, where the heating amount is: Q=m*c*(T1-T2), and t is the preset heating time.

[0062] In one embodiment, the heating device is connected in series in the small circulation system of the methanol engine coolant.

[0063] The heating device draws the coolant from the methanol engine through a water pump, heats it through the heating device and then directly returns it to the methanol engine, so that the coolant circulates quickly inside the engine, helping the engine to quickly heat up and reach the operating temperature.

[0064] The methanol engine cold start device provided by the embodiment of the present invention only adds a low-cost heating device and realizes the cold start of the methanol engine through logical control without the need for other auxiliary facilities, thereby realizing the cold start of the methanol engine at a low cost.

[0065] Exemplary Methods

[0066] Figure 2 This is a flow chart of a methanol engine cold start method provided by an embodiment of the present invention. Figure 2 In an exemplary embodiment, a methanol engine cold start method is provided, and the method may include the following steps:

[0067] S210: Acquire initial coolant temperature information of the methanol engine and initial SOC information of the battery;

[0068] The heating device in this embodiment is connected to a water pump, and the heating device circulates and heats the coolant in the methanol engine through the water pump. The heating device can be an electrically heated expansion water tank. The water pump can be used to transport and circulate the coolant to keep the temperature of the methanol engine or the battery pack within an optimal range. The water pump can provide sufficient coolant circulation in the initial stage of the methanol engine startup to speed up the warm-up process of the methanol engine.

[0069] The initial coolant temperature information of the methanol engine can be obtained through the engine coolant temperature sensor (Engine Coolant Temperature Sensor, referred to as: ECT sensor) installed in the engine cooling system. The ECT sensor is a thermistor (Negative Temperature Coefficient, referred to as: NTC), whose resistance value changes with the change of temperature. The ECT sensor monitors the temperature of the engine coolant in real time and transmits this information to the ECU. The battery SOC information is obtained through the battery management system (Battery Management System, referred to as: BMS), and the SOC is estimated by the internal algorithm of the BMS and transmitted to the vehicle's ECU.

[0070] S230: If the initial coolant temperature information of the methanol engine is less than the first preset coolant temperature threshold, and the initial SOC information of the battery is less than the first preset SOC threshold, send a first instruction to enable the heating device to heat to a second preset coolant temperature threshold;

[0071] In this embodiment, the first preset coolant temperature threshold may be 25° C., the first preset SOC threshold may be 35%, and the second preset coolant temperature threshold may be 30° C. It should be understood that the first preset coolant temperature threshold, the first preset SOC threshold, and the second preset coolant temperature threshold may all be adjusted according to actual conditions.

[0072] When the condition in S230 is met, the ECU sends a first instruction to turn on the heating function of the heating device, so that the heating device heats the methanol engine through the water pump.

[0073] S250: If the current coolant temperature information of the methanol engine meets the preset start condition, a second instruction is sent to enable the methanol engine to start the cold start mode.

[0074] The embodiment of the present invention only requires the addition of a heating device without other auxiliary facilities to achieve heating of the engine when the preset starting conditions are met, thereby achieving cold starting of the methanol engine at a low cost.

[0075] In one embodiment, if the current coolant temperature information of the methanol engine meets the preset start condition, sending a second instruction to enable the methanol engine to start the cold start mode may include:

[0076] Get ambient temperature information;

[0077] If the current coolant temperature information of the methanol engine is greater than the second coolant temperature preset threshold, and the ambient temperature information is greater than the first ambient temperature preset threshold, a second instruction is sent to enable the methanol engine to start the cold start mode.

[0078] Ambient temperature is an important factor affecting the start of a methanol engine. In a low temperature environment, the engine oil of a methanol engine becomes viscous and has reduced fluidity, which increases the start resistance of the methanol engine and causes difficulty in starting. In the embodiment of the present invention, the influence of environmental factors on the start of a methanol engine is taken into account, and the accuracy of cold start is improved.

[0079] In this embodiment, the first ambient temperature preset threshold can be set to 0°C.

[0080] In one embodiment, if the current coolant temperature information of the methanol engine meets the preset start condition, sending a second instruction to enable the methanol engine to start the cold start mode may include:

[0081] If the current coolant temperature information of the methanol engine is greater than the third coolant temperature threshold, and the ambient temperature information is less than the first ambient temperature preset threshold, a second instruction is sent to enable the methanol engine to start the cold start mode.

[0082] It should be noted that, as the heating device heats the methanol engine, the coolant temperature of the methanol engine continues to rise. In this embodiment, the third coolant temperature threshold is greater than the second coolant temperature preset threshold.

[0083] When the current coolant temperature information of the methanol engine is greater than the third threshold, that is, when the ambient temperature is low, the vehicle can also be cold started. In this embodiment, the third coolant temperature threshold may be 45°C, and the first ambient temperature preset threshold may be 0°C.

[0084] In one embodiment, the method for cold starting a methanol engine may further include:

[0085] Get the vehicle's operating mode;

[0086] If the vehicle is in the air conditioning heating mode, a second instruction is sent to enable the methanol engine to start the cold start mode.

[0087] When the ambient temperature is low, the vehicle will turn on the air conditioning heating mode. When the initial SOC information of the battery is greater than the first preset SOC threshold, the heating device can provide auxiliary heating; when the initial SOC information of the battery is less than the first preset SOC threshold, the ECU sends a second instruction to enable the methanol engine to start the cold start mode.

[0088] In one embodiment, sending the first instruction to heat the heating water tank to a second preset coolant temperature threshold may include:

[0089] Obtain heating parameters of the heating device;

[0090] Determine the heating time of the heating device according to the heating parameters;

[0091] A first instruction is sent to enable the heating device to perform heating within a heating time period.

[0092] The heating device can be an electrically heated expansion water tank. When the temperature of the coolant in the methanol engine increases, the volume of the expansion water tank expands, and the excess coolant will flow into the expansion water tank. When the temperature of the coolant in the methanol engine decreases, the volume of the expansion water tank shrinks, and the expansion water tank will replenish the coolant back to the cooling system. In the embodiment of the present invention, a resistive expansion water tank can be used, that is, when current flows through the resistance wire, the resistance wire will generate heat, and the coolant in the methanol engine can be heated by a water pump circulation to increase the coolant temperature of the methanol engine.

[0093] The heating parameters may include resistance value and current value. According to the heating parameters, the heating power may be determined according to the following formula. The following formula is as follows:

[0094] P=I 2 R

[0095] Among them, P is the heating power, I is the current flowing through the resistance wire, and R is the resistance value of the resistance wire.

[0096] In this embodiment, the heat Q by which the coolant temperature of the methanol engine rises from the initial coolant temperature value to the second preset coolant temperature threshold is predetermined, and the heating time can be determined according to Joule's law Q=Pt.

[0097] In practical applications, the heating device performs heating within the heating time and stops heating after the heating time.

[0098] In one embodiment, the methanol engine cold start method may further include:

[0099] Get battery type and capacity information;

[0100] A first preset SOC threshold is determined according to the battery type and capacity information.

[0101] Since batteries with different battery types and capacity information may affect the SOC of the vehicle, the first preset SOC threshold may be determined according to the battery type and capacity information.

[0102] In practical applications, different driving modes have some influence on the first preset SOC threshold, for example, daily commuting mode, long-distance driving mode, etc. When the vehicle is in daily commuting mode, the first preset SOC threshold can be set lower; when the vehicle's driving mode is long-distance driving, the first preset SOC threshold can be set higher to ensure that there is enough power to support longer distance driving. It should be understood that other factors affecting the first preset SOC threshold can be used in the embodiments of the present invention.

[0103] Exemplary Devices

[0104] Accordingly, the embodiment of the present application also provides a methanol engine cold start device, Figure 3 This is a structural block diagram of a methanol engine cold start device provided by an embodiment of the present invention. Figure 3 As shown, the apparatus may include:

[0105] An acquisition unit 320 is used to acquire initial coolant temperature information of the methanol engine and initial SOC information of the battery;

[0106] The heating unit 340 is used to send a first instruction to heat the heating water tank to a second preset coolant temperature threshold if the initial coolant temperature information of the methanol engine is less than the first preset coolant temperature threshold and the initial SOC information of the battery is less than the first preset SOC threshold;

[0107] The starting unit 360 is used to send a second instruction to start the cold start mode of the methanol engine if the current coolant temperature information of the methanol engine and the current SOC information of the battery meet the preset starting conditions.

[0108] The methanol engine cold start device provided in this embodiment belongs to the same application concept as the methanol engine cold start method provided in the above embodiments of this application, and can execute the methanol engine cold start method provided in any of the above embodiments of this application, and has the corresponding functional modules and beneficial effects of executing the methanol engine cold start method. For the technical details not described in detail in this embodiment, please refer to the specific processing content of the methanol engine cold start method provided in the above embodiments of this application, and will not be repeated here.

[0109] The functions implemented by the above acquisition unit 320, heating unit 340 and starting unit 360 can be implemented by the same or different processors respectively, and the embodiment of the present application is not limited thereto.

[0110] It should be understood that the acquisition unit 320, the heating unit 340 and the start unit 360 in the above device can be implemented in the form of a processor calling software. For example, the device includes a processor, the processor is connected to a memory, and instructions are stored in the memory. The processor calls the instructions stored in the memory to implement any of the above methods or realize the functions of each unit of the device, wherein the processor can be a general-purpose processor, such as a CPU or a microprocessor, etc., and the memory can be a memory in the device or a memory outside the device. Alternatively, the unit in the device can be implemented in the form of a hardware circuit, and the functions of some or all units can be realized by designing the hardware circuit. The hardware circuit can be understood as one or more processors; for example, in one implementation, the hardware circuit is an ASIC, and the functions of some or all of the above units are realized by designing the logical relationship of the components in the circuit; for another example, in another implementation, the hardware circuit can be implemented by PLD, taking FPGA as an example, which can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by a configuration file, so as to realize the functions of some or all of the above units. All units of the above device can be implemented in the form of a processor calling software, or in the form of a hardware circuit, or in part by a processor calling software, and the remaining part is implemented in the form of a hardware circuit.

[0111] In an embodiment of the present application, a processor is a circuit with the ability to process signals. In one implementation, the processor may be a circuit with the ability to read and run instructions, such as a CPU, a microprocessor, a GPU, or a DSP; in another implementation, the processor may implement certain functions through the logical relationship of a hardware circuit, and the logical relationship of the hardware circuit is fixed or reconfigurable, such as a hardware circuit implemented by an ASIC or PLD, such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document to implement the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as an NPU, TPU, DPU, etc.

[0112] It can be seen that each unit in the above device can be one or more processors (or processing circuits) configured to implement the above method, such as: CPU, GPU, NPU, TPU, DPU, microprocessor, DSP, ASIC, FPGA, or a combination of at least two of these processor forms.

[0113] In addition, all or part of the units in the above device can be integrated together, or can be implemented independently. In one implementation, these units are integrated together and implemented in the form of a SOC. The SOC may include at least one processor for implementing any of the above methods or implementing the functions of each unit of the device. The type of the at least one processor may be different, for example, including a CPU and an FPGA, a CPU and an artificial intelligence processor, a CPU and a GPU, etc.

[0114] Exemplary Electronic Devices

[0115] Another embodiment of the present application also provides an electronic device, see Figure 4 As shown, the device includes:

[0116] Memory 400 and processor 410;

[0117] The memory 400 is connected to the processor 410 and is used to store programs;

[0118] The processor 410 is used to implement the methanol engine cold start method disclosed in any of the above embodiments by running the program stored in the memory 400.

[0119] Specifically, the electronic device may further include: a bus, a communication interface 420 , an input device 430 and an output device 440 .

[0120] The processor 410, the memory 400, the communication interface 420, the input device 430 and the output device 440 are connected to each other via a bus.

[0121] A bus may include a pathway that transfers information between components of a computer system.

[0122] Processor 410 may be a general purpose processor, such as a general purpose central processing unit (CPU), a microprocessor, etc., or an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the scheme of the present invention. It may also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.

[0123] The processor 410 may include a main processor, and may also include a baseband chip, a modem, and the like.

[0124] The memory 400 stores a program for executing the technical solution of the present invention, and may also store an operating system and other key services. Specifically, the program may include a program code, and the program code includes a computer operation instruction. More specifically, the memory 400 may include a read-only memory (ROM), other types of static storage devices that can store static information and instructions, a random access memory (RAM), other types of dynamic storage devices that can store information and instructions, a disk storage, a flash, and the like.

[0125] The input device 430 may include a device for receiving data and information input by a user, such as a keyboard, a mouse, a camera, a scanner, a light pen, a voice input device, a touch screen, a pedometer, or a gravity sensor.

[0126] Output device 440 may include a device that allows information to be output to a user, such as a display screen, a printer, a speaker, etc.

[0127] The communication interface 420 may include any transceiver or the like to communicate with other devices or communication networks, such as Ethernet, a radio access network (RAN), a wireless local area network (WLAN), etc.

[0128] The processor 410 executes the program stored in the memory 400 and calls other devices, which can be used to implement each step of any methanol engine cold start method provided in the above embodiments of the present application.

[0129] The embodiment of the present invention further provides a vehicle, the vehicle comprising: a heating device, a water pump, a methanol engine and the above-mentioned electronic equipment;

[0130] The electronic device is connected to the heating device;

[0131] The heating device is used to heat the coolant in the methanol engine through the water pump.

[0132] Exemplary computer program products and storage media

[0133] In addition to the above-mentioned methods and devices, an embodiment of the present application may also be a computer program product, which includes computer program instructions, which, when executed by a processor, enable the processor to execute the steps of the methanol engine cold start method according to various embodiments of the present application described in any of the above embodiments of this specification.

[0134] The computer program product may be written in any combination of one or more programming languages ​​to write program codes for performing the operations of the embodiments of the present application, including object-oriented programming languages, such as Java, C++, etc., and conventional procedural programming languages, such as "C" language or similar programming languages. The program code may be executed entirely on the user computing device, partially on the user device, as an independent software package, partially on the user computing device and partially on a remote computing device, or entirely on a remote computing device or server.

[0135] In addition, the embodiment of the present application may also be a storage medium on which a computer program is stored. The computer program is executed by a processor to execute the steps of the methanol engine cold start method according to various embodiments of the present application described in any of the above embodiments of this specification, and specifically the following steps may be implemented:

[0136] S210: Acquire initial coolant temperature information of the methanol engine and initial SOC information of the battery;

[0137] S230: If the initial coolant temperature information of the methanol engine is less than the first preset coolant temperature threshold, and the initial SOC information of the battery is less than the first preset SOC threshold, send a first instruction to enable the heating device to heat to a second preset coolant temperature threshold;

[0138] S250: If the current coolant temperature information of the methanol engine meets the preset start condition, a second instruction is sent to enable the methanol engine to start the cold start mode.

[0139] For the aforementioned method embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the order of the actions described, because according to the present application, some steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

[0140] It should be noted that each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other. For the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0141] The steps in the methods of each embodiment of the present application can be adjusted in order, combined and deleted according to actual needs, and the technical features recorded in each embodiment can be replaced or combined.

[0142] The modules and sub-modules in the devices and terminals of the various embodiments of the present application can be combined, divided and deleted according to actual needs.

[0143] In the several embodiments provided in the present application, it should be understood that the disclosed terminals, devices and methods can be implemented in other ways. For example, the terminal embodiments described above are only schematic, for example, the division of modules or submodules is only a logical function division, and there may be other division methods in actual implementation, for example, multiple submodules or modules can be combined or integrated into another module, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or modules, which can be electrical, mechanical or other forms.

[0144] The modules or submodules described as separate components may or may not be physically separated, and the components of the modules or submodules may or may not be physical modules or submodules, that is, they may be located in one place, or they may be distributed on multiple network modules or submodules. Some or all of the modules or submodules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0145] In addition, each functional module or submodule in each embodiment of the present application may be integrated into one processing module, or each module or submodule may exist physically separately, or two or more modules or submodules may be integrated into one module. The above-mentioned integrated modules or submodules may be implemented in the form of hardware or in the form of software functional modules or submodules.

[0146] Professionals may further appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in the above description according to function. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0147] The steps of the method or algorithm described in conjunction with the embodiments disclosed herein may be implemented directly by hardware, software units executed by a processor, or a combination of the two. The software units may be placed in a random access memory (RAM), a memory, a read-only memory (ROM), an electrically programmable ROM, an electrically erasable programmable ROM, a register, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

[0148] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0149] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A methanol engine cold start device, characterized in that: include: A heating device is used to heat the coolant in the methanol engine to a second preset coolant temperature threshold when the initial coolant temperature of the methanol engine is less than the first preset coolant temperature threshold and the initial SOC information of the battery is less than the first preset SOC threshold.

2. The methanol engine cold starting device according to claim 1, characterized in that: The heating device is used to heat the methanol engine within a preset heating time, and the preset heating time is determined based on the difference between the initial coolant temperature and the second preset coolant temperature threshold and the heating parameters of the heating device.

3. The methanol engine cold starting device according to claim 1, characterized in that: The heating device is connected in series in the small circulation system of the methanol engine coolant.

4. A methanol engine cold start method, characterized in that: Methods include: Obtain the initial coolant temperature information of the methanol engine and the initial SOC information of the battery; If the initial coolant temperature information of the methanol engine is less than a first preset coolant temperature threshold, and the initial SOC information of the battery is less than the first preset SOC threshold, sending a first instruction to enable the heating device to heat to a second preset coolant temperature threshold; If the current coolant temperature information of the methanol engine meets the preset start condition, a second instruction is sent to enable the methanol engine to start the cold start mode.

5. The methanol engine cold start method according to claim 4, characterized in that: If the current coolant temperature information of the methanol engine meets the preset start condition, sending a second instruction to enable the methanol engine to start the cold start mode includes: Get ambient temperature information; If the current coolant temperature information of the methanol engine is greater than the second coolant temperature preset threshold, and the ambient temperature information is greater than the first ambient temperature preset threshold, the second instruction is sent to enable the methanol engine to start the cold start mode.

6. The methanol engine cold start method according to claim 5, characterized in that: If the current coolant temperature information of the methanol engine meets the preset start condition, sending a second instruction to enable the methanol engine to start the cold start mode includes: If the current coolant temperature information of the methanol engine is greater than the third coolant temperature threshold, and the ambient temperature information is less than the first ambient temperature preset threshold, the second instruction is sent to enable the methanol engine to start the cold start mode; the third coolant temperature threshold is greater than the second coolant temperature preset threshold.

7. The methanol engine cold start method according to claim 4, characterized in that: The method further comprises: Get the vehicle's operating mode; If the operation mode of the vehicle is the air conditioning heating mode, a second instruction is sent to enable the methanol engine to start the cold start mode.

8. The methanol engine cold start method according to claim 4, characterized in that: The sending of the first instruction to heat the heating water tank to a second preset coolant temperature threshold comprises: Obtaining heating parameters of the heating device; Determining a preset heating time of the heating device according to the heating parameters; The first instruction is sent to enable the heating device to heat within the preset heating time.

9. The methanol engine cold start method according to claim 4, characterized in that: The method further comprises: Get battery type and capacity information; The first preset SOC threshold is determined according to the battery type and capacity information.

10. An electronic device, characterized in that: including memory and processor; The memory is connected to the processor and is used to store programs; The processor is used to implement the methanol engine cold start method as described in any one of claims 4 to 9 by running the program in the memory.

11. A vehicle, characterized in that: The vehicle comprises: a heating device, a water pump, a methanol engine and the electronic device as claimed in claim 10; The electronic device is connected to the heating device; The heating device is used to heat the coolant in the methanol engine through a water pump.

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