A parking warm air control method, system, vehicle and medium

Abstract

The present invention discloses a parking warm air control method, system, vehicle and medium. The method includes: when it is detected that the vehicle engine start-stop signal is a stop signal, controlling the opening of the total electric control water valve; determining a target operating condition for parking warm air control according to the received target demand instruction; wherein the target operating condition includes at least one of a parking heating condition, an engine preheating condition or a fuel tank heating condition; generating a target control signal according to the received temperature parameter or a preset control logic; and sending the target control signal to a water pump, a fuel heater or a target branch electric control water valve corresponding to the target operating condition to control the water pump flow rate, the operating power of the fuel heater or the opening degree of the target branch electric control water valve. Through the technical solution of the present invention, it is possible to effectively increase the temperature in the cab under the parking state in winter, improve the comfort; it can also realize the preheating of the engine in advance, and can also realize the heating of high-grade fuel in the fuel tank, improving the operation economy of commercial vehicles.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle heating control, and in particular to a parking warm air control method, system, vehicle and medium. Background Art

[0002] With the improvement of living standards, in order to enhance the user's vehicle use experience, it is becoming increasingly important to provide a comfortable in-vehicle temperature for users. Especially in cold winters, when the vehicle is parked outdoors for a long time, the in-vehicle temperature is usually unbearable without intervention.

[0003] In the prior art, the cab heating requires the engine to run, and the temperature of the engine coolant is used as the heat source for the air conditioning system heating. Therefore, when parking in low temperature in winter, if the user wants to maintain the warm air output, the engine must always be kept in the working state. However, continuous engine idling not only consumes more fuel, has poor economy, damages the engine, and generates noise affecting the user experience, but also when the engine idles for a long time, the water temperature of the warm air system is not high, and it is difficult to meet the user's heating requirements. On the other hand, in low temperature working conditions in winter, when the vehicle is parked for a long time, it is easy to have difficulties in starting the engine and the diesel is prone to condensation, which will make the vehicle unable to run.

[0004] Therefore, how to effectively increase the temperature in the cab in the parking state in winter and improve the comfort; it is also possible to realize the preheating of the engine in advance and easy starting at low temperature; and it can also realize the heating of high-grade fuel in the fuel tank to prevent the fuel from condensing at low temperature and the vehicle from being unable to start, and improve the operation economy of commercial vehicles, which is an urgent problem to be solved at present. Summary of the Invention

[0005] The present invention provides a parking warm air control method, system, vehicle and medium, which can solve the problems of low temperature and poor comfort in the cab in the parking state in winter; the engine cannot be preheated in advance, and the fuel in the fuel tank condenses at low temperature.

[0006] According to one aspect of the present invention, a parking warm air control method is provided, characterized in that it includes:

[0007] When it is detected that the vehicle engine start-stop signal is a stop signal, control the total electric control water valve to open;

[0008] According to the received target demand instruction, determine the target working condition of the parking warm air control; wherein, the target working condition includes at least one of the parking heating working condition, the engine preheating working condition or the fuel tank heating working condition of the parking warm air control working condition;

[0009] Generate a target control signal corresponding to the target working condition according to the received temperature parameter or preset control logic;

[0010] Send the target control signal to the water pump, fuel heater or the target branch electronic control water valve corresponding to the target working condition to control the water pump flow rate, the operating power of the fuel heater or the opening degree of the target branch electronic control water valve.

[0011] According to another aspect of the present invention, there is provided a parked vehicle warm air control system, characterized by comprising:

[0012] A processor, configured to control the opening of the total electronic control water valve when detecting that the vehicle engine start-stop signal is a stop signal; determine the target working condition of the parked vehicle warm air control according to the received target demand instruction; wherein, the target working condition includes at least one parked vehicle warm air control working condition among the parked vehicle heating working condition, the engine preheating working condition or the fuel tank heating working condition; generate a target control signal corresponding to the target working condition according to the received temperature parameter or preset control logic; send the target control signal to the water pump, fuel heater or the target branch electronic control water valve corresponding to the target working condition to control the water pump flow rate, the operating power of the fuel heater or the opening degree of the target branch electronic control water valve;

[0013] The total electronic control water valve is configured to receive the opening instruction from the processor and connect the target branches where each target working condition is located.

[0014] The water pump is used to be connected to the fuel heater and input the engine coolant into the fuel heater to realize the water circulation of the target branch.

[0015] The fuel heater is used to heat the engine coolant and transmit the heated engine coolant to each target branch to complete the parked vehicle warm air control.

[0016] The target branch electronic control water valve is configured to receive the target control signal from the processor and open the target branches where each target working condition is located.

[0017] According to another aspect of the present invention, there is provided a vehicle, the vehicle comprising:

[0018] At least one processor; and

[0019] A memory communicatively connected to the at least one processor; wherein,

[0020] The memory stores a computer program executable by the at least one processor, and when the computer program is executed by the at least one processor, the at least one processor can execute the parked vehicle warm air control method according to any embodiment of the present invention.

[0021] According to another aspect of the present invention, there is provided a computer-readable storage medium, the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to execute the parked vehicle warm air control method according to any embodiment of the present invention when executed.

[0022] In the technical solution of the embodiment of the present invention, when it is detected that the vehicle engine start-stop signal is a stop signal, the total electric control water valve is controlled to open; then, according to the received target demand instruction, the target working condition of the parking warm air control is determined; furthermore, according to the received temperature parameter or the preset control logic, a target control signal corresponding to the target working condition is generated; finally, the target control signal is sent to the water pump, the fuel heater or the target branch electric control water valve corresponding to the target working condition to control the water pump flow rate, the operating power of the fuel heater or the opening degree of the target branch electric control water valve, which can effectively increase the temperature in the cab in the winter parking state and improve the comfort; it can also realize the preheating of the engine in advance, which is easy to start at low temperatures; it can also realize the heating of high-grade fuel in the fuel tank to prevent the fuel from condensing at low temperatures and the vehicle from being unable to start, and improve the operation economy of commercial vehicles.

[0023] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present invention, nor is it used to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. Brief Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 is a flowchart of a parking warm air control method provided in Embodiment 1 of the present invention;

[0026] Figure 2a is a flowchart of a parking warm air control method provided in Embodiment 2 of the present invention;

[0027] Figure 2b is a flowchart of an alternative parking warm air control method provided in Embodiment 2 of the present invention;

[0028] Figure 3a is a schematic structural diagram of a parking warm air control system provided in Embodiment 3 of the present invention;

[0029] Figure 3b is a schematic structural diagram of an alternative parking warm air control system provided in Embodiment 3 of the present invention;

[0030] Figure 4 is a schematic structural diagram of a vehicle implementing the parking warm air control method of the embodiment of the present invention. Detailed Embodiments

[0031] To enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, 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 invention without creative efforts shall fall within the scope of protection of the present invention.

[0032] It should be noted that the terms "first", "second", "target", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0033] Embodiment 1

[0034] Figure 1 FIG. 10 is a flowchart of a parking warm air control method provided for Embodiment 1 of the present invention. This embodiment is applicable to the situation of realizing parking heating, engine low-temperature preheating and fuel tank heating functions under low-temperature conditions of commercial vehicles. This method can be executed by a parking warm air control system, which can be implemented in the form of hardware and / or software, and this system can be configured in a vehicle. As Figure 1 shown, the method includes:

[0035] S110. When it is detected that the engine start-stop signal of the vehicle is a stop signal, control the main valve of the electronic control water valve to open.

[0036] Among them, the engine start-stop signal can refer to the signal of engine start or stop, and it can be used to judge whether the engine is running. When the engine is running, it can be judged as the driving state, and vice versa, if the engine stops, it can be judged as the parking state. Usually, the processor can collect the engine start-stop signal through the Controller Area Network (CAN) signal.

[0037] Controlling the main valve of the electronic control water valve can refer to controlling the main valve of the parking warm air control water circuit, and it can be used to control whether to execute the parking warm air control method.

[0038] Specifically, when it is determined that the vehicle state is the parking state through the engine start-stop signal, the electronic control water valve main valve is turned on to execute the parking warm air control method. In an optional implementation manner of the embodiment of the present invention, when the engine start-stop signal is a start signal, it indicates that the vehicle state is the driving state, and the electronic control water valve main valve can be closed to stop the execution of the parking warm air control method. At this time, both the vehicle cab heating and the fuel tank heating can use the engine heat source, achieving the purpose of saving fuel.

[0039] S120. Determine the target working condition of the parking warm air control according to the received target demand instruction; wherein, the target working condition includes at least one parking warm air control working condition among the parking heating working condition, the engine preheating working condition or the fuel tank heating working condition.

[0040] Among them, the parking heating working condition can refer to the working condition of raising the temperature in the cab when the vehicle is in the parking state. The engine preheating working condition can refer to the working condition of preheating the engine when the vehicle is in the parking state so that the engine is easy to start. The fuel tank heating working condition can refer to the working condition of heating the high-grade fuel in the fuel tank when the vehicle is in the parking state to prevent the fuel from condensing at low temperature and the vehicle from being unable to start.

[0041] Among them, the target working condition can refer to the parking warm air control working condition that needs to be achieved. The target demand instruction can refer to the demand instruction including the target working condition. Exemplarily, it can be a key instruction issued by the user according to his own needs. For example, if the user wants to achieve the parking heating working condition, he can press the parking heating control key; if the user wants to achieve the engine preheating working condition, he can press the engine preheating control key; if the user wants to achieve the fuel tank heating working condition, he can press the fuel tank heating control key; it can also be a voice instruction issued by the user according to his own needs, etc. The embodiment of the present invention does not limit this.

[0042] Specifically, when the target demand instruction is received, the target working condition included in the target demand instruction is obtained to implement the corresponding parking warm air control according to the target working condition, providing an effective basis for subsequent operations.

[0043] S130. Generate a target control signal corresponding to the target working condition according to the received temperature parameter or the preset control logic.

[0044] Among them, the temperature parameter can refer to the temperature value related to the vehicle's own temperature or the preset temperature value, and the target working condition can be achieved according to this temperature parameter. The preset control logic can refer to the logic preset for controlling the water flow in each branch, and the target working condition can be achieved according to this preset control logic. The target control signal can refer to the signal generated according to the temperature parameter or the preset control logic for controlling each component in the water circuit to complete the parking warm air control.

[0045] S140. Send the target control signal to the water pump, fuel heater, or the electronically controlled water valve of the target branch corresponding to the target working condition to control the water pump flow rate, the operating power of the fuel heater, or the opening degree of the electronically controlled water valve of the target branch.

[0046] Among them, the target branch may refer to the branch corresponding to the target working condition, and different target working conditions usually correspond to different branches. The water pump may refer to the water pumping component connected to the fuel heater. The engine coolant can be input into the fuel heater through the water pump to push the entire water circuit and realize the water circuit circulation of the target branch. The fuel heater may refer to a component that heats the engine coolant and transmits the heated engine coolant to each target branch. The electronically controlled water valve of the target branch may refer to the electronically controlled water valve that controls the disconnection or connection of the target branch. Generally, when the electronically controlled water valve of the target branch is in the open state, the corresponding target branch is connected; on the contrary, when the electronically controlled water valve of the target branch is in the closed state, the corresponding target branch is disconnected.

[0047] The technical solution of the embodiment of the present invention, when detecting that the vehicle engine start-stop signal is a stop signal, controls the opening of the main electronically controlled water valve; then, according to the received target demand instruction, determines the target working condition for parking warm air control; furthermore, according to the received temperature parameter or preset control logic, generates a target control signal corresponding to the target working condition; finally, sends the target control signal to the water pump, fuel heater, or the electronically controlled water valve of the target branch corresponding to the target working condition to control the water pump flow rate, the operating power of the fuel heater, or the opening degree of the electronically controlled water valve of the target branch, which can effectively increase the temperature in the cab under the winter parking state, improve comfort; can also realize the preheating of the engine in advance and is easy to start at low temperatures; can also realize the heating of high-grade fuel in the fuel tank, prevent the fuel from condensing at low temperatures, and the vehicle cannot start, and improve the operation economy of commercial vehicles.

[0048] Embodiment 2

[0049] Figure 2a It is a flowchart of a parking warm air control method provided by the second embodiment of the present invention. This embodiment is refined based on the above embodiment. Specifically, in this embodiment, the operation of generating a target control signal corresponding to the target working condition according to the received temperature parameter or preset control logic is refined, and specifically may include: when the target working condition includes a single parking warm air control working condition, generating a target control signal corresponding to the target working condition according to the received temperature parameter; when the target working condition includes at least two parking warm air control working conditions, generating a target control signal corresponding to the target working condition according to the preset control logic. As Figure 2a shown, the method includes:

[0050] S210. When detecting that the vehicle engine start-stop signal is a stop signal, control the opening of the main electronically controlled water valve.

[0051] S220. Determine the target operating condition for parking heater control according to the received target demand instruction.

[0052] S230. Determine whether the target operating condition includes a single parking heater control operating condition. If so, execute S240; if not, execute S260.

[0053] Among them, the target operating condition includes at least one parking heater control operating condition among the parking heating operating condition, engine preheating operating condition or fuel tank heating operating condition.

[0054] Among them, a single parking heater control operating condition may refer to one parking heater control operating condition. Exemplarily, it may be any one of the parking heating operating condition, engine preheating operating condition or fuel tank heating operating condition. At least two parking heater control operating conditions may refer to two or more parking heater control operating conditions. Exemplarily, it may be that any two or three of the parking heating operating condition, engine preheating operating condition or fuel tank heating operating condition exist.

[0055] S240. Generate a target control signal corresponding to the target operating condition according to the received temperature parameter.

[0056] Specifically, when the target operating condition includes a single parking heater control operating condition, a target control signal corresponding to the target operating condition can be directly generated according to the received temperature parameter, thereby completing the realization of the target operating condition.

[0057] In an optional implementation manner, when the target operating condition includes a single parking heater control operating condition, generating a target control signal corresponding to the target operating condition according to the received temperature parameter includes: when the target operating condition includes a single parking heater control operating condition, receiving the temperature inside the cab collected by the indoor temperature sensor, the outdoor ambient temperature collected by the outdoor temperature sensor, and the temperature of the circulating waterway coolant corresponding to the target operating condition; determining the set operating condition temperature corresponding to the target operating condition according to the type of the target operating condition, based on the temperature inside the cab collected by the indoor temperature sensor, the outdoor ambient temperature collected by the outdoor temperature sensor, or the temperature of the circulating waterway coolant corresponding to the target operating condition; generating a target control signal including the flow rate of the control water pump and the operating power of the fuel heater according to the type of the target operating condition, based on the temperature inside the cab, the set operating condition temperature corresponding to the target operating condition, or the temperature of the circulating waterway coolant corresponding to the target operating condition.

[0058] Among them, the temperature inside the cab may refer to the temperature value inside the vehicle cab. The outdoor ambient temperature may refer to the temperature value of the vehicle external environment. The temperature of the circulating waterway coolant may refer to the temperature of the engine coolant flowing out after being heated by the fuel heater.

[0059] Among them, the set operating condition temperature may refer to the temperature preset to be reached under the target operating condition. Exemplarily, if the type of the target operating condition is the parking heating operating condition, the corresponding set operating condition temperature may be the set temperature inside the cab; if the type of the target operating condition is the engine preheating operating condition, the corresponding set operating condition temperature may be the final engine preheating temperature, and usually, the final engine preheating temperature can be set by comprehensively considering the requirements of the engine for low-temperature starting and warming up and the energy-saving purpose; if the type of the target operating condition is the fuel tank heating operating condition, the corresponding set operating condition temperature may be the target fuel tank heating temperature, and usually, the target fuel tank heating temperature can be defined by comprehensively considering the characteristics of the engine for low-temperature fuel supply and the energy-saving purpose.

[0060] Specifically, when the target operating condition includes a single parking warm air control operating condition, the set operating condition temperature corresponding to the target operating condition can be determined according to the type of the target operating condition, the temperature inside the cab collected by the received indoor temperature sensor, the outdoor ambient temperature collected by the outdoor temperature sensor, or the temperature of the coolant in the circulating waterway corresponding to the target operating condition. Furthermore, based on the temperature inside the cab, the set operating condition temperature corresponding to the target operating condition, or the temperature of the coolant in the circulating waterway corresponding to the target operating condition, a target control signal including the control of the water pump flow rate and the operating power of the fuel heater is generated. Thus, the generation of the target control signal under a single parking warm air control operating condition can be realized.

[0061] In another alternative embodiment, based on the type of the target operating condition, a target control signal including the control of the water pump flow rate and the operating power of the fuel heater is generated according to the temperature inside the cab, the set operating condition temperature corresponding to the target operating condition, or the temperature of the coolant in the circulating waterway corresponding to the target operating condition, including: calculating the target heat corresponding to the target operating condition according to the type of the target operating condition, the temperature inside the cab, the set operating condition temperature corresponding to the target operating condition, or the temperature of the coolant in the circulating waterway corresponding to the target operating condition; determining the operating power of the fuel heater corresponding to the target operating condition according to the type of the target operating condition and the target heat; determining the water pump flow rate corresponding to the target operating condition according to the operating power of the fuel heater corresponding to the target operating condition; and combining the operating power of the fuel heater corresponding to the target operating condition and the water pump flow rate to generate the target control signal corresponding to the target operating condition.

[0062] Among them, the target heat may refer to the heat required to achieve the target operating condition, and usually, it can be calculated according to the temperature inside the cab, the set operating condition temperature corresponding to the target operating condition, or the temperature of the coolant in the circulating waterway corresponding to the target operating condition. Specifically, if the temperature inside the cab of the current vehicle is t1, the outdoor ambient temperature is t2, and the temperature of the coolant in the circulating waterway is t3. When the target operating condition is the parking heating operating condition and the set temperature inside the cab is t4, the target heat Q1 corresponding to the parking heating operating condition can be calculated by the following formula: Q1 = C 空气 *m 空气 *(t4 - t1), C 空气It can refer to the specific heat capacity of air, that is, when there is no phase change and chemical change, the heat required for 1 kg of homogeneous substance to increase the temperature by 1 K; m 空气 It can refer to the mass of air. When the target operating condition is the engine preheating condition, the final temperature of engine preheating is t5, and the target heat Q2 corresponding to the engine preheating condition can be calculated by the following formula: Q2 = C 冷却液 *m 冷却液 *(t5 - t3), C 冷却液 It can refer to the specific heat capacity of the engine coolant, m 冷却液 It can refer to the mass of the engine coolant. In the embodiment of the present invention, t5 = -5 °C can be set. When the target operating condition is the fuel tank heating condition, the target temperature of fuel tank heating is t6, and the target heat Q3 corresponding to the engine preheating condition can be calculated by the following formula: Q3 = C 冷却液 *m 冷却液 *(t6 - t3). In the embodiment of the present invention, t6 = 0 °C can be set.

[0063] Among them, the operating power of the fuel heater can be selected according to the type of the target operating condition and the definition of the target heat. Specifically, when the target operating condition is the parking heating condition, the operating power P1 of the fuel heater corresponding to the parking heating condition can be selected according to the following definition: when Q1 > 4.5 kw, P1 = 8; when Q1 < 4.5 kw, P1 = 5. When the target operating condition is the engine preheating condition, the operating power P2 of the fuel heater corresponding to the engine preheating condition can be selected according to the following definition: when Q2 > 5 kw, P2 = 8; when Q2 < 5 kw, P2 = 5. When the target operating condition is the fuel tank heating condition, the operating power P3 of the fuel heater corresponding to the fuel tank heating condition can be selected according to the following definition: when Q3 > 5 kw, P3 = 8; when Q3 < 5 kw, P3 = 5.

[0064] Among them, the water pump flow corresponding to the target operating condition can be calculated according to the operating power of the fuel heater corresponding to the target operating condition according to the following formula: L = P / C 冷却液 *Δt*ρ 冷却液 , Δt can refer to the flow calculation time, ρ 冷却液 can refer to the density of the engine coolant.

[0065] It should be noted that when the target operating condition includes a single parking warm air control condition, the target branch electric control water valve corresponding to the target operating condition is fully opened, and the electric control water valves of the remaining branches are in the closed state.

[0066] S250, Send the target control signal to the water pump and the fuel heater to control the water pump flow and the operating power of the fuel heater.

[0067] Specifically, the target control signals including the water pump flow rate and the operating power of the fuel heater are sent to the water pump and the fuel heater, so that the water pump can work according to the calculated flow rate and the fuel heater can work according to the calculated operating power. Thus, the parking warm air control under a single parking warm air control condition is achieved.

[0068] It should be noted that if the target condition is the engine preheating condition, when the water temperature in the target branch reaches the final engine preheating temperature t5, a target control signal to stop working is sent to the fuel heater, the electronically controlled water valve of the target branch is controlled to close, and the vehicle's original engine water circuit circulation state is switched to. If the target condition is the fuel tank heating condition, when the water temperature in the target branch reaches the final engine preheating temperature t6, a target control signal to stop working is sent to the fuel heater. Thus, on the basis of achieving the parking warm air control under the target condition, the safety of the engine and the fuel tank can be ensured.

[0069] S260. Generate the target control signal corresponding to the target condition according to the preset control logic.

[0070] Specifically, when the target condition includes at least two parking warm air control conditions, the adjustment of at least two parking warm air control conditions can be completed according to the preset control logic, and the target control signal corresponding to the target condition is generated, so that each parking warm air control condition can reach the optimal state as much as possible.

[0071] In an optional implementation manner, when the target condition includes at least two parking warm air control conditions, generating the target control signal corresponding to the target condition according to the preset control logic includes: when the target condition includes at least two parking warm air control conditions, controlling the water pump to be in the full-power operation state and obtaining the preset control logic corresponding to the target condition; determining the opening degree of the electronically controlled water valve of the target branch corresponding to the target condition according to the preset control logic; and generating the target control signal corresponding to the target condition according to the opening degree of the electronically controlled water valve of the target branch.

[0072] Among them, the preset control logic can be determined according to the type of parking warm air control working condition included in the target working condition. Specifically, when the target working condition includes the parking heating working condition and the engine preheating working condition, considering that the water flow application ratio of the parking heating working condition branch is smaller than the water flow required by the engine preheating working condition branch, on the basis of meeting both the cab heating needs and the engine preheating needs, the control logic between the water flow L4 of the parking heating working condition branch and the water flow L5 of the engine preheating working condition branch is set to 1:3. When the target working condition includes the engine preheating working condition and the fuel tank heating working condition, considering the difference in waterway resistance between the engine preheating working condition branch and the fuel tank heating working condition branch, the control logic between the water flow L6 of the engine preheating working condition branch and the water flow L7 of the fuel tank heating working condition branch is set to 2:1. When the target working condition includes the parking heating working condition and the fuel tank heating working condition, considering the difference in waterway resistance between the parking heating working condition branch and the fuel tank heating working condition branch, the control logic between the water flow L8 of the parking heating working condition and the water flow L9 of the fuel tank heating working condition branch is set to 1:1. When the target working condition includes the parking heating working condition, the engine preheating working condition and the fuel tank heating working condition, considering the difference in waterway resistance between the parking heating working condition branch, the engine preheating working condition branch and the fuel tank heating working condition branch, the control logic between the water flow L 10 , the water flow L 11 of the engine preheating working condition and the water flow L 12 of the fuel tank heating working condition branch is set to 1:2:1.

[0073] Specifically, when the target working condition includes at least two parking warm air control working conditions, control the water pump to operate at full power, control the fuel heater to be at rated power, and obtain the preset control logic corresponding to the target working condition; furthermore, determine the opening of the target branch electronic control water valve corresponding to the target working condition according to the preset control logic; finally, generate a target control signal corresponding to the target working condition according to the opening of the target branch electronic control water valve. Thus, by controlling the opening of the target branch electronic control water valve, it is possible to avoid the situation where other branches are short-circuited due to too small flow resistance in a certain branch. By limiting the flow resistance through the opening of the target branch electronic control water valve, the flow of each branch can be distributed according to the heat demand, realizing the function expansion of the parking heating system and meeting the multi-scenario use requirements of users.

[0074] It should be noted that the above control logic is set to be approximately equal, that is, the water flow of each branch roughly conforms to the control logic.

[0075] In another alternative embodiment, determining the opening of the target branch electronic control water valve corresponding to the target working condition according to the preset control logic includes: determining the water flow ratio of each target branch in the target working condition according to the preset control logic; and determining the opening of the electronic control water valve corresponding to each target branch when each target branch reaches the water flow ratio.

[0076] Among them, the water flow ratio can refer to the ratio of the water flow rates between the respective target branches of the preset control logic. The opening degree of the electronically controlled water valve can be determined according to the opening degree when the water flow ratio of each target branch reaches the water flow ratio. Specifically, when the target working condition includes the parking heating working condition and the engine preheating working condition, it is known that the water flow ratio between the water flow rate L4 of the parking heating working condition branch and the water flow rate L5 of the engine preheating working condition branch is 1:3. The opening degrees of the electronically controlled water valves of each target branch can be gradually increased from the 0 opening degree. When the water flow ratio between the water flow rate L4 of the parking heating working condition branch and the water flow rate L5 of the engine preheating working condition branch reaches 1:3, for example, L4 = 6 L / min and L5 = 20 L / min, the opening degree of the electronically controlled water valve of the parking heating working condition branch can be determined as K1, and the opening degree of the electronically controlled water valve of the engine preheating working condition branch can be determined as K2. Similarly, when the target working condition includes the engine preheating working condition and the fuel tank heating working condition, the opening degree K3 of the electronically controlled water valve of the engine preheating working condition branch and the opening degree K4 of the electronically controlled water valve of the fuel tank heating working condition branch can be determined. When the target working condition includes the parking heating working condition and the fuel tank heating working condition, the opening degree K5 of the electronically controlled water valve of the parking heating working condition branch and the opening degree K6 of the electronically controlled water valve of the fuel tank heating working condition branch. When the target working condition includes the parking heating working condition, the engine preheating working condition and the fuel tank heating working condition, the opening degree K7 of the electronically controlled water valve of the parking heating working condition branch, the opening degree K8 of the electronically controlled water valve of the engine preheating working condition branch, and the opening degree K9 of the electronically controlled water valve of the fuel tank heating working condition branch.

[0077] It should be noted that when the target working condition includes at least two parking warm air control working conditions, the electronically controlled water valves of the target branches corresponding to the target working condition are fully opened, and the electronically controlled water valves of the remaining branches are in the closed state.

[0078] S270. Send the target control signal to the electronically controlled water valve of the target branch corresponding to the target working condition to control the opening degree of the electronically controlled water valve of the target branch.

[0079] In the technical solution of the embodiment of the present invention, when it is detected that the start-stop signal of the vehicle engine is a stop signal, the electronic control water valve main valve is controlled to open; then, according to the received target demand instruction, the target working condition of the parking warm air control is determined; further, when the target working condition includes a single parking warm air control working condition, the target control signal corresponding to the target working condition can be directly generated according to the received temperature parameter, and the target control signal is sent to the water pump and the fuel heater to control the water pump flow rate and the operating power of the fuel heater; and, when the target working condition includes at least two parking warm air control working conditions, the adjustment of at least two parking warm air control working conditions can be completed according to the preset control logic, the target control signal corresponding to the target working condition is generated, and the target control signal is sent to the target branch electronic control water valve corresponding to the target working condition to control the opening degree of the target branch electronic control water valve, which can avoid the situation that other branches are short-circuited due to too small flow resistance in a certain branch by controlling the opening degree of the target branch electronic control water valve, and can also limit the flow resistance through the opening degree of the target branch electronic control water valve, so that each branch can distribute the flow rate according to the heat demand, effectively improving the temperature in the cab under the winter parking state and improving the comfort; it can also realize the preheating of the engine and is easy to start at low temperatures; it can also realize the heating of high-grade fuel in the fuel tank to prevent the fuel from condensing at low temperatures and the vehicle from being unable to start, improving the operation economy of commercial vehicles.

[0080] Figure 2b It is a flowchart of an optional parking warm air control method provided in Embodiment 2 of the present invention; specifically, when the target demand instruction is received, the temperature in the cab collected by the indoor temperature sensor, the outdoor ambient temperature collected by the outdoor temperature sensor, and the temperature of the circulating water coolant corresponding to the target working condition are obtained, and according to the type of the target working condition in the target demand instruction, the set working condition temperature corresponding to the target working condition is determined based on the temperature in the cab collected by the indoor temperature sensor, the outdoor ambient temperature collected by the outdoor temperature sensor, or the temperature of the circulating water coolant corresponding to the target working condition; further, according to the type of the target working condition, based on the temperature in the cab, the set working condition temperature corresponding to the target working condition, or the temperature of the circulating water coolant corresponding to the target working condition, a target control signal including controlling the water pump flow rate and the operating power of the fuel heater is generated, and the implementation of the single parking warm air control, the opening degree of the electronic control water valve of the parking heating working condition branch, the opening degree of the electronic control water valve of the engine preheating working condition branch, and the opening degree of the electronic control water valve of the fuel tank heating working condition branch are controlled according to the target control signal.

[0081] Embodiment 3

[0082] Figure 3a It is a schematic structural diagram of a parking warm air control system provided in Embodiment 3 of the present invention. As Figure 3a shown, the system includes: a processor 310, an electronic control water valve main valve 320, a water pump 330, a fuel heater 340, and a target branch electronic control water valve 350;

[0083] Among them, the processor 310 is configured to control the opening of the electronic control water valve main valve 320 when detecting that the vehicle engine start-stop signal is a stop signal; determine the target working condition of the parked vehicle warm air control according to the received target demand instruction; among them, the target working condition includes at least one parked vehicle warm air control working condition among the parked vehicle heating working condition, the engine preheating working condition or the fuel tank heating working condition; generate a target control signal corresponding to the target working condition according to the received temperature parameter or the preset control logic; send the target control signal to the water pump 330, the fuel heater 340 or the target branch electronic control water valve 350 corresponding to the target working condition to control the water pump flow rate, the operating power of the fuel heater or the opening degree of the target branch electronic control water valve;

[0084] The electronic control water valve main valve 320 is configured to receive the opening instruction from the processor and connect the target branches where each target working condition is located;

[0085] The water pump 330 is configured to be connected to the fuel heater 340, input the engine coolant into the fuel heater 340, and realize the water circulation of the target branch;

[0086] The fuel heater 340 is configured to heat the engine coolant and transmit the heated engine coolant to each target branch to complete the parked vehicle warm air control;

[0087] The target branch electronic control water valve 350 is configured to receive the target control signal from the processor 310 and open the target branches where each target working condition is located.

[0088] The technical solution of the embodiment of the present invention controls the opening of the electronic control water valve main valve 320 when detecting that the vehicle engine start-stop signal is a stop signal; then, determines the target working condition of the parked vehicle warm air control according to the received target demand instruction; further, generates a target control signal corresponding to the target working condition according to the received temperature parameter or the preset control logic; finally, sends the target control signal to the water pump 330, the fuel heater 340 or the target branch electronic control water valve 350 corresponding to the target working condition to control the water pump 330 flow rate, the operating power of the fuel heater 340 or the opening degree of the target branch electronic control water valve 350, which can effectively increase the temperature in the cab under the parked vehicle state in winter and improve the comfort; it can also realize the preheating of the engine in advance and is easy to start at low temperatures; it can also realize the heating of high-grade fuel in the fuel tank to prevent the fuel from condensing at low temperatures and the vehicle from being unable to start, and improve the operation economy of commercial vehicles.

[0089] Optionally, the parked vehicle warm air control system may further include:

[0090] An oil pump, configured to be connected to the fuel heater, extract combustion oil from the low-grade fuel tank and transmit it to the fuel heater;

[0091] An in-vehicle temperature sensor is used to collect the in-vehicle temperature and transmit it to the processor;

[0092] An outdoor temperature sensor is used to collect the outdoor ambient temperature and transmit it to the processor.

[0093] Optionally, the parking warm air control system may further include a storage battery, which is used to connect to the water pump and the oil pump to provide power for the water pump and the oil pump.

[0094] The parking warm air control system provided by the embodiments of the present invention can execute the parking warm air control method provided by any embodiment of the present invention, and has corresponding functional modules and beneficial effects for executing the method.

[0095] Figure 3b FIG. 13 is a schematic structural diagram of an optional parking warm air control system provided by Embodiment 3 of the present invention; specifically, it may include: a fuel heater, a water pump, an electronic control water valve main valve, a first control unit, a second control unit, a third control unit, a first branch electronic control water valve, a second branch electronic control water valve, a third branch electronic control water valve, a parking heating water circulation module, an engine water circulation module, and a fuel tank heating water circulation module. Among them, the fuel heater, the water pump, and the electronic control water valve main valve are connected to form the main circulation path of the parking warm air control system. When the electronic control water valve main valve is opened, the parking warm air control system is started; the first control unit, the first branch electronic control water valve, and the parking heating water circulation module are connected to form a circulation water path for the parking heating working condition. When the target working condition includes at least two parking warm air control working conditions, the opening degree of the first branch electronic control water valve is calculated by the first control unit, and the parking heating working condition is realized by controlling the opening degree of the first branch electronic control water valve; when the target working condition includes a single parking warm air control working condition, the first branch electronic control water valve is controlled by the first control unit to be fully opened, and the water pump flow rate and the operating power of the fuel heater are controlled to realize the parking heating working condition. The second control unit, the second branch electronic control water valve, and the engine water circulation module are connected to form a circulation water path for the engine preheating working condition. When the target working condition includes at least two parking warm air control working conditions, the opening degree of the second branch electronic control water valve is calculated by the second control unit, and the engine preheating working condition is realized by controlling the opening degree of the second branch electronic control water valve; when the target working condition includes a single parking warm air control working condition, the second branch electronic control water valve is controlled by the second control unit to be fully opened, and the water pump flow rate and the operating power of the fuel heater are controlled to realize the engine preheating working condition. The third control unit, the third branch electronic control water valve, and the fuel tank heating water circulation module are connected to form a circulation water path for the fuel tank heating working condition. When the target working condition includes at least two parking warm air control working conditions, the opening degree of the third branch electronic control water valve is calculated by the third control unit, and the fuel tank heating working condition is realized by controlling the opening degree of the third branch electronic control water valve; when the target working condition includes a single parking warm air control working condition, the third branch electronic control water valve is controlled by the third control unit to be fully opened, and the water pump flow rate and the operating power of the fuel heater are controlled to realize the fuel tank heating working condition.

[0096] Embodiment 4

[0097] Figure 4 shows a schematic structural diagram of a vehicle that can be used to implement the embodiments of the present invention. As Figure 4 shown, the vehicle includes a processor 410, a memory 420, an input device 430, and an output device 440; the number of processors 410 in the vehicle can be one or more, Figure 4 and one processor 410 is taken as an example here; the processor 410, the memory 420, the input device 430, and the output device 440 in the vehicle can be connected by a bus or other means, Figure 4 and taking connection by bus as an example here.

[0098] The memory 420, as a computer-readable storage medium, can be used to store software programs, computer-executable programs, and modules. The processor 410 executes various functional applications and data processing of the vehicle by running the software programs, instructions, and modules stored in the memory 420, that is, implements the above-mentioned parking warm air control method.

[0099] The method includes:

[0100] When it is detected that the vehicle engine start-stop signal is a stop signal, control the opening of the total electronic control water valve;

[0101] According to the received target demand instruction, determine the target working condition of the parking warm air control; wherein, the target working condition includes at least one parking warm air control working condition among the parking heating working condition, the engine preheating working condition, or the fuel tank heating working condition;

[0102] Generate a target control signal corresponding to the target working condition according to the received temperature parameter or the preset control logic;

[0103] Send the target control signal to the water pump, the fuel heater, or the electronic control water valve of the target branch corresponding to the target working condition to control the water pump flow rate, the operating power of the fuel heater, or the opening of the electronic control water valve of the target branch.

[0104] The memory 420 may mainly include a program storage area and a data storage area. Among them, the program storage area may store an operating system and application programs required for at least one function; the data storage area may store data created according to the use of the terminal, etc. In addition, the memory 420 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage devices. In some instances, the memory 420 may further include a memory remotely provided with respect to the processor 410, and these remote memories may be connected to the vehicle through a network. Examples of the above network include but are not limited to the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0105] The input device 430 may be used to receive input digital or character information, and generate key signal inputs related to the user settings and function control of the vehicle. The output device 440 may include a display device such as a display screen.

[0106] Embodiment Five

[0107] Embodiment Five of the present invention further provides a storage medium containing computer-executable instructions, and the computer-executable instructions are used to execute a parking warm air control method when executed by a computer processor.

[0108] The method includes:

[0109] When it is detected that the vehicle engine start-stop signal is a stop signal, control the main valve of the electronic control water valve to open;

[0110] According to the received target demand instruction, determine the target operating condition for parking warm air control; wherein, the target operating condition includes at least one parking warm air control operating condition among a parking heating operating condition, an engine preheating operating condition, or a fuel tank heating operating condition;

[0111] Generate a target control signal corresponding to the target operating condition according to the received temperature parameter or preset control logic;

[0112] Send the target control signal to the water pump, the fuel heater, or the electronic control water valve of the target branch corresponding to the target operating condition to control the water pump flow rate, the operating power of the fuel heater, or the opening degree of the electronic control water valve of the target branch.

[0113] Of course, for a storage medium containing computer-executable instructions provided by an embodiment of the present invention, the computer-executable instructions are not limited to the method operations as described above, and may also execute related operations in the parking warm air control method provided by any embodiment of the present invention.

[0114] From the above description of the embodiments, those skilled in the art can clearly understand that the present invention can be implemented by means of software and necessary general hardware. Of course, it can also be implemented by hardware, but in many cases the former is a better implementation. Based on such an understanding, the technical solution of the present invention, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as a floppy disk, read-only memory (ROM), random access memory (RAM), flash memory (FLASH), hard disk or optical disc of a computer, etc., and includes several instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) to execute the methods described in various embodiments of the present invention.

[0115] It should be noted that in the above embodiments of the parking warm air control system, the various units and modules included are only divided according to functional logic, but are not limited to the above division, as long as the corresponding functions can be achieved; in addition, the specific names of the functional units are only for the convenience of mutual distinction and do not limit the protection scope of the present invention.

[0116] It should be understood that various forms of the processes shown above can be used, reordering, adding or deleting steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and no limitation is made herein.

[0117] The above specific embodiments do not constitute a limitation to the protection scope of the present invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A parking warm air control method, characterized in that including: When it is detected that the vehicle engine start-stop signal is a stop signal, control the opening of the total electronic control water valve; Determine the target operating condition for parking heater control according to the received target demand instruction; wherein, the target operating condition includes at least one parking heater control operating condition among a parking heating operating condition, an engine preheating operating condition, or a fuel tank heating operating condition; Generate a target control signal corresponding to the target operating condition according to the received temperature parameter or a preset control logic; Send the target control signal to a water pump, a fuel heater, or the electronic control water valve of the target branch corresponding to the target operating condition to control the water pump flow rate, the operating power of the fuel heater, or the opening degree of the electronic control water valve of the target branch; The generating a target control signal corresponding to the target operating condition according to the received temperature parameter or a preset control logic includes: When the target operating condition includes a single parking heater control operating condition, generate a target control signal corresponding to the target operating condition according to the received temperature parameter; When the target operating condition includes at least two parking heater control operating conditions, generate a target control signal corresponding to the target operating condition according to a preset control logic; wherein, the preset control logic is a logic preset for controlling the water flow rate in each branch, and the preset control logic is determined according to the type of the parking heater control operating condition included in the target operating condition; The generating a target control signal corresponding to the target operating condition according to the received temperature parameter when the target operating condition includes a single parking heater control operating condition includes: When the target operating condition includes a single parking heater control operating condition, receive the cab temperature collected by an indoor temperature sensor, the outdoor ambient temperature collected by an outdoor temperature sensor, and the coolant temperature of the circulating water path corresponding to the target operating condition; Determine the set operating condition temperature corresponding to the target operating condition according to the type of the target operating condition, based on the cab temperature collected by the indoor temperature sensor, the outdoor ambient temperature collected by the outdoor temperature sensor, or the coolant temperature of the circulating water path corresponding to the target operating condition; Generate a target control signal including controlling the water pump flow rate and the operating power of the fuel heater according to the type of the target operating condition, based on the cab temperature, the set operating condition temperature corresponding to the target operating condition, or the coolant temperature of the circulating water path corresponding to the target operating condition, including: Calculate the target heat corresponding to the target operating condition according to the type of the target operating condition, based on the cab temperature, the set operating condition temperature corresponding to the target operating condition, or the coolant temperature of the circulating water path corresponding to the target operating condition; Determine the operating power of the fuel heater corresponding to the target operating condition according to the type of the target operating condition and the target heat; Determine the water pump flow rate corresponding to the target operating condition according to the operating power of the fuel heater corresponding to the target operating condition; Combine the operating power of the fuel heater corresponding to the target operating condition and the water pump flow rate to generate a target control signal corresponding to the target operating condition; The generating a target control signal corresponding to the target operating condition according to a preset control logic when the target operating condition includes at least two parking heater control operating conditions includes: When the target operating condition includes at least two parking heater control operating conditions, control the water pump to be in a full-power operation state and obtain the preset control logic corresponding to the target operating condition; Determine the opening degree of the electronic control water valve of the target branch corresponding to the target operating condition according to the preset control logic; Generate a target control signal corresponding to the target working condition according to the opening degree of the electronically controlled water valve of the target branch.

2. The method according to claim 1, characterized in that, The determining the opening degree of the electronically controlled water valve of the target branch corresponding to the target working condition according to the preset control logic includes: Determine the water flow ratio of each target branch in the target working condition according to the preset control logic; Determine the opening degree of the electronically controlled water valve corresponding to each target branch when each target branch reaches the water flow ratio according to the water flow ratio of each target branch.

3. A parking warm air control system, characterized in that, Includes: A processor, configured to control the opening of the main electronically controlled water valve when detecting that the vehicle engine start-stop signal is a stop signal; determine the target working condition for parking heating control according to the received target demand instruction; wherein the target working condition includes at least one of a parking heating working condition, an engine preheating working condition, or a fuel tank heating working condition for parking heating control; generate a target control signal corresponding to the target working condition according to the received temperature parameter or the preset control logic; send the target control signal to the water pump, the fuel heater, or the electronically controlled water valve of the target branch corresponding to the target working condition to control the water pump flow rate, the operating power of the fuel heater, or the opening degree of the electronically controlled water valve of the target branch; The main electronically controlled water valve is configured to receive the opening instruction from the processor and connect the target branches where each target working condition is located; The water pump is configured to be connected to the fuel heater and input the engine coolant into the fuel heater to realize the water circulation of the target branch; The fuel heater is configured to heat the engine coolant and transmit the heated engine coolant to each target branch to complete the parking heating control; The electronically controlled water valve of the target branch is configured to receive the target control signal from the processor and open the target branches where each target working condition is located; The generating a target control signal corresponding to the target working condition according to the received temperature parameter or the preset control logic includes: When the target working condition includes a single parking heating control working condition, generate a target control signal corresponding to the target working condition according to the received temperature parameter; When the target working condition includes at least two parking heating control working conditions, generate a target control signal corresponding to the target working condition according to the preset control logic; wherein the preset control logic is a logic preset for controlling the water flow in each branch, and the preset control logic is determined according to the type of parking heating control working condition included in the target working condition; The generating a target control signal corresponding to the target working condition according to the received temperature parameter when the target working condition includes a single parking heating control working condition includes: When the target working condition includes a single parking heating control working condition, receive the cab temperature collected by the indoor temperature sensor, the outdoor ambient temperature collected by the outdoor temperature sensor, and the circulating water coolant temperature corresponding to the target working condition; Determine the set working condition temperature corresponding to the target working condition according to the type of the target working condition, based on the cab temperature collected by the indoor temperature sensor, the outdoor ambient temperature collected by the outdoor temperature sensor, or the circulating water coolant temperature corresponding to the target working condition; Generate a target control signal including controlling the water pump flow rate and the operating power of the fuel heater according to the type of the target working condition, based on the cab temperature, the set working condition temperature corresponding to the target working condition, or the circulating water coolant temperature corresponding to the target working condition, including: According to the type of the target working condition, calculate the target heat corresponding to the target working condition based on the temperature in the cab, the set working condition temperature corresponding to the target working condition, or the temperature of the coolant in the circulating water path corresponding to the target working condition; Determine the operating power of the fuel heater corresponding to the target working condition according to the type of the target working condition and the target heat; Determine the water pump flow rate corresponding to the target working condition according to the operating power of the fuel heater corresponding to the target working condition; Combine the operating power of the fuel heater corresponding to the target working condition and the water pump flow rate to generate a target control signal corresponding to the target working condition; When the target working condition includes at least two parking warm air control working conditions, generating a target control signal corresponding to the target working condition according to a preset control logic includes: When the target working condition includes at least two parking warm air control working conditions, control the water pump to be in a full-power operation state and obtain the preset control logic corresponding to the target working condition; Determine the opening degree of the target branch electric control water valve corresponding to the target working condition according to the preset control logic; Generate a target control signal corresponding to the target working condition according to the opening degree of the target branch electric control water valve.

4. The system according to claim 3, wherein The system further includes: An oil pump, used to be connected to the fuel heater to extract combustion oil from a low-grade fuel tank and transmit it to the fuel heater; An indoor temperature sensor, used to collect the temperature in the cab and transmit it to the processor; An outdoor temperature sensor, used to collect the outdoor ambient temperature and transmit it to the processor.

5. A vehicle, characterized in that, The vehicle includes: At least one processor; and A memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the parking warm air control method according to any one of claims 1-2.

6. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable the processor to implement the parking warm air control method according to any one of claims 1-2 when executed.

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