Throttle ice breaking method and device, vehicle, medium and program

Abstract

The invention relates to the technical field of vehicles, in particular to a throttle valve ice breaking method and device, a vehicle, a medium and a program.The method comprises the steps that the current state of a throttle valve is recognized; if the current state is a non-icing state, the engine is controlled to be started or stopped; and if the current state is the icing state, the throttle valve is controlled to be opened and closed repeatedly for icebreaking. Therefore, the problem that a vehicle power system breaks down due to the fact that a throttle valve of a hybrid vehicle model is frozen in the related technology is solved.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a throttle ice-breaking method, device, vehicle, medium and program. Background Art

[0002] With the popularization of automobile electrification, the market share of hybrid vehicles continues to increase. Hybrid vehicles are a form of hybrid power that adds a three-electric system to the original fuel vehicle. Its engine control is adaptively changed based on the original fuel vehicle control, but the overall difference is not big. In fact, since both the motor and the engine can drive the vehicle, the engine of hybrid vehicles is often in a condition of frequent starting and stopping compared to fuel vehicles, so some fuel vehicle functions are not applicable to hybrid models; and throttle ice breaking is one of them.

[0003] In the related art, the throttle de-icing strategy is basically mainly aimed at fuel vehicles. The throttle de-icing is performed when the vehicle is started for the first time or after it is shut down. For fuel vehicles, it can effectively solve the problem of throttle freezing after the vehicle is shut down. According to statistics, the throttle freezing after the fuel vehicle is shut down accounts for a large proportion of all throttle freezing conditions. In addition, throttle freezing is also difficult to solve when the vehicle is driving at a low speed. Especially for hybrid vehicles, since they start and shut down alternately, the throttle is more likely to freeze during their shutdown process, and the original de-icing strategy is difficult to solve this problem. Summary of the invention

[0004] The present application provides a throttle ice-breaking method, device, vehicle, medium and program to solve the problem of throttle ice forming in hybrid vehicle models leading to vehicle power system failure in the related art.

[0005] The first embodiment of the present application provides a throttle valve ice-breaking method, comprising the following steps: identifying the current state of the throttle valve; if the current state is an unfrozen state, controlling the engine to start or stop; if the current state is an iced state, controlling the throttle valve to open and close repeatedly to break the ice.

[0006] Optionally, controlling the throttle valve to open and close repeatedly to break ice includes: controlling the throttle valve to reach a first target opening at a first target rate in an opening direction; after breaking ice in the opening direction fails, controlling the throttle valve to reach a second target opening at a second target rate in a closing direction.

[0007] Optionally, after controlling the throttle valve to open and close repeatedly to break the ice, it also includes: identifying the number of times the throttle valve is repeatedly opened and closed; if the number reaches a preset number, identifying the current state of the engine; and executing a corresponding target action according to the current state of the engine.

[0008] Optionally, executing a corresponding target action according to the current state of the engine includes: if the current state of the engine is a start state, controlling the throttle icing processing module to stabilize the engine at a preset operating condition; if the current state of the engine is a stop state, performing icing diagnosis at every second preset time interval, and executing corresponding operations according to the diagnosis result.

[0009] Optionally, the identification of the current state of the throttle includes: controlling the valve of the throttle to move to a third target opening in a closing direction, and detecting the difference between the actual opening of the throttle and the third target opening after a first preset time period; if the difference is greater than a first preset threshold value, then the current state of the throttle is determined to be an ice state, otherwise, the throttle is determined to be in an un-iced state.

[0010] Optionally, before identifying the current state of the throttle, it includes: obtaining the current ambient temperature, engine speed and battery SOC in the vehicle auxiliary power system; if the current ambient temperature is less than or equal to a preset temperature, the engine speed is less than or equal to a preset speed, and the battery SOC in the vehicle auxiliary power system is greater than or equal to a second preset threshold, then the throttle meets the icing condition.

[0011] The second aspect of the present application provides a throttle ice-breaking device, including: an identification module for identifying the current state of the throttle; a first control module for controlling the engine to start or stop if the current state is an unfrozen state; and a second control module for controlling the throttle to open and close repeatedly to break the ice if the current state is an iced state.

[0012] A third aspect of the present application provides a vehicle, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to perform the throttle ice-breaking method as described in the above embodiment.

[0013] The fourth aspect of the present application provides a computer-readable storage medium on which a computer program is stored. The program is executed by a processor to perform the throttle ice-breaking method as described in the above embodiment.

[0014] The fifth aspect of the present application provides a computer program product, including a computer program or instructions, characterized in that when the computer program or instructions are executed, the throttle ice-breaking method described in the above embodiment is implemented.

[0015] Therefore, this application has at least the following beneficial effects:

[0016] The embodiment of the present application can control the engine to start or stop when the current state of the throttle is an unfrozen state, and can control the throttle to open and close repeatedly to break the ice when the current state is an iced state, so as to perform the ice-breaking operation according to the alternating starting and stopping characteristics of the hybrid vehicle type. While breaking the ice efficiently, it greatly reduces the damage to the vehicle's power system and improves the service life of the vehicle.

[0017] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0019] Figure 1 A flow chart of a throttle ice-breaking method provided according to an embodiment of the present application;

[0020] Figure 2 A schematic diagram of the intelligent throttle ice-breaking control logic provided according to an embodiment of the present application;

[0021] Figure 3 A schematic diagram for determining whether a throttle valve is frozen according to an embodiment of the present application;

[0022] Figure 4 A physical principle diagram of throttle icing provided according to an embodiment of the present application;

[0023] Figure 5 A block diagram of a throttle ice-breaking device provided according to an embodiment of the present application;

[0024] Figure 6 It is a schematic diagram of the structure of a vehicle provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0025] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0026] The throttle ice-breaking method, device, vehicle, medium and program of the embodiment of the present application are described below with reference to the accompanying drawings. In view of the problem of throttle ice-breaking of hybrid vehicle models in the related art mentioned in the background technology center, the present application provides a throttle ice-breaking method. In this method, when the current state of the throttle is an unfrozen state, the engine is controlled to start or stop. When the current state is an iced state, the throttle is controlled to open and close repeatedly to break the ice, so as to perform the ice-breaking operation according to the alternating start-up and shutdown characteristics of the hybrid vehicle model. While breaking the ice efficiently, the damage to the vehicle power system is greatly reduced, and the service life of the vehicle is increased. As a result, the problem of throttle ice-breaking of hybrid vehicle models in the related art causing vehicle power system failure is solved.

[0027] Specifically, Figure 1 A flow chart of a throttle valve ice-breaking method provided in an embodiment of the present application.

[0028] like Figure 1 As shown, the throttle valve ice breaking method includes the following steps:

[0029] In step S101 , the current state of the throttle valve is identified.

[0030] It is understandable that the embodiments of the present application can identify the current state of the throttle so as to subsequently perform corresponding operations based on the current state.

[0031] In an embodiment of the present application, before identifying the current state of the throttle, it includes: obtaining the current ambient temperature, engine speed and battery SOC in the vehicle auxiliary power system; if the current ambient temperature is less than or equal to the preset temperature, the engine speed is less than or equal to the preset speed, and the battery SOC in the vehicle auxiliary power system is greater than or equal to the second preset threshold, then the throttle meets the icing condition.

[0032] Among them, the preset stability may be 0°C, the preset speed may be 50r / min, and the second preset threshold may be 40% of the total power, which may be set according to actual needs without specific limitation.

[0033] It can be understood that the embodiment of the present application can determine whether the throttle meets the icing conditions based on the current ambient temperature, engine speed and battery SOC in the vehicle auxiliary power system, so as to facilitate the subsequent ice-breaking operation.

[0034] In an embodiment of the present application, identifying the current state of the throttle includes: controlling the throttle valve to move to a third target opening in a closing direction, and detecting the difference between the actual opening of the throttle after a first preset time period and the third target opening; if the difference is greater than a first preset threshold value, determining that the current state of the throttle is an ice state, otherwise, determining that the throttle is in an un-iced state.

[0035] The third target opening may be 2%, and the first preset time may be 0.25 s, which may be set according to actual needs without specific limitation.

[0036] It can be understood that the embodiment of the present application controls the throttle valve to move to the third target opening in the closing direction, and detects the difference between the actual opening of the throttle after the first preset time and the third target opening; if the difference is greater than the first preset threshold value, the current state of the throttle is determined to be an icing state, and it is confirmed again whether the throttle is frozen, so as to facilitate the subsequent execution of ice-breaking operations and improve vehicle driving safety.

[0037] For example, when the icing conditions are met, the throttle target position is first controlled to move in the closing direction (the throttle opening is 6% when not controlled). If the absolute value of the difference between the actual throttle position and the target position of 2% is greater than 0.3% within 0.25s, then the throttle is determined to be frozen.

[0038] In step S102, if the current state is an unfrozen state, the engine is controlled to start or stop.

[0039] It is understandable that the embodiment of the present application can control the engine to start or stop when the current state is an unfrozen state, so as to maintain the normal working state of the hybrid vehicle and improve the operating efficiency.

[0040] In step S103, if the current state is an icing state, the throttle valve is controlled to open and close repeatedly to break the ice.

[0041] It can be understood that the embodiment of the present application can control the throttle valve to open and close repeatedly to break the ice when the current state is an icy state, so as to perform the ice-breaking operation according to the alternating starting and stopping characteristics of the hybrid vehicle type. While breaking the ice efficiently, it greatly reduces the damage to the vehicle's power system and improves the service life of the vehicle.

[0042] In an embodiment of the present application, the throttle valve is controlled to open and close repeatedly to break ice, including: controlling the throttle valve to reach a first target opening at a first target rate in an opening direction; after breaking ice in the opening direction fails, controlling the throttle valve to reach a second target opening at a second target rate in a closing direction.

[0043] Among them, the first target rate can be 400° / s, the first target opening can be 30°, the second target rate can be 450° / s, and the second target opening can be 2°. They can be set according to actual needs without specific limitation.

[0044] It can be understood that the embodiment of the present application can control the throttle valve to reach a first target opening at a first target rate in the opening direction; after the ice breaking in the opening direction fails, the throttle valve is controlled to reach a second target opening at a second target rate in the closing direction, so as to perform the ice breaking operation according to the alternating starting and stopping characteristics of the hybrid vehicle type, while breaking the ice efficiently, greatly reducing the damage to the vehicle power system and improving the service life of the vehicle.

[0045] Specifically, the throttle ice-breaking operation: one ice-breaking in the opening direction and one ice-breaking in the closing direction is recorded as one ice-breaking, specifically:

[0046] (1) Open direction ice breaking: After determining that the throttle is frozen, set the target throttle position to 30° at a rate of 400° / s. If the actual throttle opening can reach 30°±0.3°, then the open direction ice breaking is successful and the process switches to the closed direction ice breaking. If the absolute value of the difference between the actual throttle opening and the target opening is greater than 0.3° for 0.25s, then the open direction ice breaking fails and the process switches to the closed direction ice breaking.

[0047] (2) Breaking ice in the closing direction: The target position of the throttle is set to close to 2° at a rate of 450° / s. If the actual throttle opening can reach 2°±0.3°, the breaking ice in the closing direction is considered successful and the control is switched to time counter control. If the absolute value of the difference between the actual throttle opening and the target opening is greater than 0.3° for 0.25s, the breaking ice in the closing direction fails and the control is switched to the breaking ice in the opening direction.

[0048] In an embodiment of the present application, after controlling the throttle valve to open and close repeatedly to break the ice, it also includes: identifying the number of times the throttle valve is repeatedly opened and closed; if the number reaches a preset number, identifying the current state of the engine; and executing the corresponding target action according to the current state of the engine.

[0049] Among them, the preset number of times can be 3 times, which can be set according to actual needs without specific limitation.

[0050] It can be understood that the embodiment of the present application can identify the current state of the engine when the throttle valve is repeatedly opened and closed a preset number of times; and execute corresponding target actions according to the current state of the engine to improve processing efficiency.

[0051] In an embodiment of the present application, a corresponding target action is performed according to the current state of the engine, including: if the current state of the engine is the start state, the throttle icing processing module is controlled to stabilize the engine at a preset operating condition; if the current state of the engine is the stop state, icing diagnosis is performed at every second preset time interval, and corresponding operations are performed according to the diagnosis results.

[0052] Among them, the second preset time length can be 30 minutes, which can be set according to actual needs without specific limitation.

[0053] It can be understood that the embodiment of the present application can control the throttle ice processing module to stabilize the engine in a preset operating condition when the current state of the engine is the start state, which can solve the NVH problem caused by unstable engine speed after the throttle ice breaking failure in the past; if the current state of the engine is the shutdown state, ice diagnosis is performed at every second preset time interval, and corresponding operations are performed according to the diagnosis results to ensure that ice breaking is performed when the ice area is small, and at the same time, it also solves the throttle ice problem caused by unstable ice time.

[0054] It should be noted that the preset operating condition can be that the ECU (Electronic Control Unit) sends a request for a speed of 1500r / min and a torque of 40Nm to the HCU (Hybrid Control Unit); the HCU fixes the engine operating condition to 1500r / min, 40Nm according to the request to stabilize power generation.

[0055] Specifically, if the ice breaking is successful in both the opening and closing directions, the ice breaking operation stops immediately. If the ice breaking fails in one of the opening or closing directions, the ice breaking operation will continue for up to 3 times. If the ice breaking fails for 3 times, the throttle ice processing module will be entered.

[0056] Among them, throttle icing treatment: due to the failure of throttle icing and deicing, the throttle valve plate cannot reach the target position, so the engine torque control cannot be performed as required. At this time, the ECU sends a speed and torque request to the HCU to fix the engine to the currently achievable stable working condition. That is, the ECU sends a request for a speed of 1500r / min and a torque of 40Nm to the HCU. According to the request, the HCU fixes the engine operating condition to 1500r / min, 40Nm, and generates electricity stably.

[0057] After the above diagnosis that the throttle is not frozen or the throttle is successfully de-iced, and the engine speed is ≤50r / min, the time counter function is activated; the time counter sends instructions to the above process 2 at 30min, 60min, 90min, and 120min to perform ice diagnosis again. The process 2 to 5 is cycled, and this process can ensure that ice is broken when the ice area is small, and at the same time solve the throttle ice problem caused by the unstable ice time. At the same time, the control of the throttle position motor can be stopped during the engine shutdown process, and the throttle valve plate is in a free state, which can save electricity.

[0058] According to the throttle valve ice-breaking method proposed in the embodiment of the present application, when the current state of the throttle valve is an unfrozen state, the engine is controlled to start or stop; when the current state is an iced state, the throttle valve is controlled to open and close repeatedly to break the ice, so as to perform the ice-breaking operation according to the alternating starting and stopping characteristics of the hybrid vehicle type. While breaking the ice efficiently, the damage to the vehicle power system is greatly reduced, thereby improving the service life of the vehicle.

[0059] The following will be combined Figure 2 The throttle ice breaking method is described in detail, and the specific steps are as follows:

[0060] Step 1: Obtain relevant internal information

[0061] After the engine is powered on, relevant control information such as the internal ambient temperature of the ECU, engine speed, small battery SOC, and throttle position are obtained.

[0062] Step 2: Determine the throttle icing condition

[0063] When the vehicle is powered on, if the ambient temperature is ≤0°C, the engine speed is ≤50r / min, and the small battery SOC is ≥40%, the throttle icing condition is met.

[0064] Step 3: Determine whether the throttle valve is frozen (such as Figure 3 (shown)

[0065] When the ice-breaking conditions are met, the throttle target position is first controlled to move in the closing direction (the throttle opening is 6% when not controlled). If the absolute value of the difference between the actual throttle position and the target position of 2% is greater than 0.3% within 0.25s, the throttle is determined to be frozen.

[0066] Step 4: Throttle valve ice breaking operation

[0067] 4.1 Open direction ice breaking: After judging that the throttle is frozen, set the target position of the throttle to 30° at a rate of 400° / s. If the actual throttle opening can reach 30°±0.3°, then the open direction ice breaking is judged to be successful, and the closing direction ice breaking is switched. If the absolute value of the difference between the actual throttle opening and the target opening is greater than 0.3° for 0.25s, then the open direction ice breaking fails, and the closing direction ice breaking is switched.

[0068] 4.2 Breaking ice in closing direction: The target position of the throttle is set to close to 2° at a rate of 450° / s. If the actual throttle opening can reach 2°±0.3°, it is judged that the breaking ice in closing direction is successful and the control is switched to time counter control. If the absolute value of the difference between the actual throttle opening and the target opening is greater than 0.3° for 0.25s, the breaking ice in closing direction fails and the control is switched to breaking ice in opening direction.

[0069] 4.3 One icebreaking in the opening direction and one icebreaking in the closing direction is recorded as one icebreaking.

[0070] 4.3 If the ice breaking is successful in both the opening and closing directions, the ice breaking operation stops immediately. If the ice breaking fails in one of the opening or closing directions, the ice breaking operation will continue for up to 3 times. If the ice breaking fails for 3 times, the throttle ice processing module will be entered.

[0071] Step 5: Time counter control

[0072] After the throttle is diagnosed to be unfrozen or the throttle is successfully de-iced in the above process 3 or 4, and the engine speed is ≤50r / min, the time counter function is activated. The time counter sends instructions to the above process 2 at 30min, 60min, 90min, and 120min to perform ice diagnosis again. The process 2 to 5 are cycled. This process can ensure that ice is broken when the ice area is small, and it also solves the problem of throttle ice caused by unstable ice time. At the same time, the control of the throttle position motor can be stopped during the engine shutdown process, and the throttle valve plate is in a free state, which can save electricity.

[0073] It should be noted that if Figure 4 As shown in the figure, when the ambient temperature is -23℃, the air sucked into the manifold by the engine is low-temperature cold air. Therefore, although the engine coolant temperature in the cylinder is 90℃ and the gas temperature from the crankcase ventilation pipe containing moisture is 30℃, the air temperature in the manifold is only -20℃ (due to the cylinder heating, the intake temperature is slightly higher than the ambient temperature). In this way, the cold and hot air meet at the intake manifold, and the gaseous moisture from the crankcase will condense into liquid water, and finally form solid ice on the manifold wall. This process will continue during the operation of the engine.

[0074] When the engine is stopped, the heat stored in the engine cylinder, coolant in the water jacket, etc. due to combustion will be released when the engine is running, causing the temperature in the manifold to rise from -20°C to 15°C. Since the temperature will rise above 0°C, the ice in the manifold will gradually melt and slowly flow to the throttle valve. Regardless of whether the engine is running or stopped, the temperature at the throttle valve is below 0°C. Therefore, when the melted water flows to the throttle valve, it will freeze again, freezing the throttle valve plate and causing the throttle valve to freeze.

[0075] Step 6: Throttle valve icing treatment

[0076] Since the throttle valve cannot reach the target position due to ice breaking, the throttle valve plate cannot reach the target position, so the engine torque control cannot be performed as required. At this time, the ECU sends a speed and torque request to the HCU to fix the engine to the currently achievable stable working condition. That is, the ECU sends a request for a speed of 1500r / min and a torque of 40Nm to the HCU. Based on the request, the HCU fixes the engine operating condition to 1500r / min and 40Nm to generate stable power.

[0077] In summary, the present application is applicable to an intelligent ice-breaking method for hybrid electric vehicles, which performs ice-breaking operations at 30 minutes, 60 minutes, 90 minutes, and 120 minutes after the engine is shut down; an ice-breaking method that impacts in the opening direction and the closing direction respectively; after the throttle valve fails to break the ice, the speed and torque at which the engine can run stably are sent to the HCU, which can solve the NVH problem caused by unstable engine speed after the throttle valve fails to break the ice in the past; the ice-breaking operation is performed according to the alternating starting and stopping characteristics of the hybrid vehicle model, which breaks the ice efficiently while greatly reducing the damage to the vehicle's power system and improving the service life of the vehicle.

[0078] Next, the throttle ice-breaking device proposed according to the embodiment of the present application is described with reference to the accompanying drawings.

[0079] Figure 5 It is a block diagram of the throttle ice-breaking device of an embodiment of the present application.

[0080] like Figure 5 As shown, the throttle ice-breaking device 10 includes: an identification module 100 , a first control module 200 and a second control module 300 .

[0081] Among them, the identification module 100 is used to identify the current state of the throttle; the control module 200 is used to control the engine to start or stop if the current state is an unfrozen state; the second control module 300 is used to control the throttle to open and close repeatedly to break the ice if the current state is an icing state.

[0082] It should be noted that the above explanation of the throttle ice-breaking method embodiment is also applicable to the throttle ice-breaking device of this embodiment, and will not be repeated here.

[0083] According to the throttle ice-breaking device proposed in the embodiment of the present application, when the current state of the throttle is an unfrozen state, the engine is controlled to start or stop; when the current state is an iced state, the throttle is controlled to open and close repeatedly to break the ice, so as to perform the ice-breaking operation according to the alternating starting and stopping characteristics of the hybrid vehicle type. While breaking the ice efficiently, the damage to the vehicle power system is greatly reduced, thereby improving the service life of the vehicle.

[0084] Figure 6A schematic diagram of the structure of a vehicle provided in an embodiment of the present application. The vehicle may include:

[0085] A memory 601 , a processor 602 , and a computer program stored in the memory 601 and executable on the processor 602 .

[0086] When the processor 602 executes the program, the throttle valve ice-breaking method provided in the above embodiment is implemented.

[0087] Furthermore, the vehicle also includes:

[0088] The communication interface 603 is used for communication between the memory 601 and the processor 602 .

[0089] The memory 601 is used to store computer programs that can be executed on the processor 602 .

[0090] The memory 601 may include a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory.

[0091] If the memory 601, the processor 602 and the communication interface 603 are implemented independently, the communication interface 603, the memory 601 and the processor 602 can be connected to each other through a bus and communicate with each other. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 6 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0092] Optionally, in a specific implementation, if the memory 601, the processor 602 and the communication interface 603 are integrated on a chip, the memory 601, the processor 602 and the communication interface 603 can communicate with each other through an internal interface.

[0093] The processor 602 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application.

[0094] An embodiment of the present application also provides a computer-readable storage medium on which a computer program or instruction is stored. When the computer program or instruction is executed by a processor, the throttle valve ice-breaking method as described above is implemented.

[0095] An embodiment of the present application also provides a computer program product, including a computer program or instructions, characterized in that when the computer program or instructions are executed, the throttle ice-breaking method as described above is implemented.

[0096] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or N embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0097] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0098] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or N executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.

[0099] It should be understood that the various parts of the present application can be implemented by hardware, software, firmware or a combination thereof. In the above embodiment, the N steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one or a combination of multiple of the following technologies known in the art: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0100] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

Claims

1. A throttle ice breaking method, characterized in that: The following steps are involved: Identify the current state of the throttle; If the current state is an unfrozen state, controlling the engine to start or stop; If the current state is an icing state, the throttle valve is controlled to open and close repeatedly to break the ice.

2. The throttle ice breaking method according to claim 1, characterized in that: The controlling the throttle valve to repeatedly open and close to break ice includes: Controlling the throttle valve to open in a direction to reach a first target opening at a first target rate; After the ice breaking in the opening direction fails, the throttle valve is controlled to reach a second target opening at a second target rate in the closing direction.

3. The throttle ice breaking method according to claim 1, characterized in that: After controlling the throttle valve to repeatedly open and close to break ice, the method further includes: Identifying the number of times the throttle valve is repeatedly opened and closed; If the number of times reaches a preset number of times, identifying the current state of the engine; Execute a corresponding target action according to the current state of the engine.

4. The throttle valve ice breaking method according to claim 3, characterized in that: The performing a corresponding target action according to the current state of the engine includes: If the current state of the engine is the start state, controlling the throttle icing processing module to stabilize the engine at a preset working condition; If the current state of the engine is a shutdown state, icing diagnosis is performed at every second preset time interval, and corresponding operations are performed according to the diagnosis result.

5. The throttle valve ice breaking method according to claim 1, characterized in that: The identifying the current state of the throttle valve includes: Controlling the throttle valve to move toward a third target opening in a closing direction, and detecting a difference between an actual opening of the throttle valve and the third target opening after a first preset time; If the difference is greater than a first preset threshold, it is determined that the current state of the throttle valve is an icing state; otherwise, it is determined that the throttle valve is in an unicing state.

6. The throttle ice-breaking method according to claim 1, characterized in that: Before identifying the current state of the throttle, the method includes: Obtain the current ambient temperature, engine speed, and battery SOC in the vehicle auxiliary power system; If the current ambient temperature is less than or equal to a preset temperature, the engine speed is less than or equal to a preset speed, and the battery SOC in the vehicle auxiliary power system is greater than or equal to a second preset threshold, the throttle meets the icing condition.

7. A throttle ice breaking device, characterized in that: include: An identification module, used for identifying a current state of the throttle valve; A first control module, configured to control the engine to start or stop if the current state is an unfrozen state; The second control module is used for controlling the throttle valve to open and close repeatedly to break ice if the current state is an icing state.

8. A vehicle, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the throttle ice-breaking method as described in any one of claims 1 to 6.

9. A computer-readable storage medium having a computer program or instruction stored thereon, characterized in that: When the computer program or instruction is executed by a processor, it is used to implement the throttle ice-breaking method as described in any one of claims 1-6.

10. A computer program product comprising a computer program or instructions, characterized in that When the computer program or instruction is executed, the throttle ice-breaking method as described in any one of claims 1-6 is implemented.

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