Icebreaking method, device and equipment for electronic throttle valve, storage medium and program product

Abstract

The invention relates to an electronic throttle valve icebreaking method, device and equipment, a storage medium and a program product, and relates to the technical field of automobile control, and the method comprises the steps that the throttle valve driving stage state and speed of a vehicle, the motor rotating speed, the storage battery voltage, the water tank temperature and the air inlet temperature are obtained; under the condition that the parameters meet the specific conditions, an electronic throttle valve of the vehicle is controlled to be closed to the first throttle valve opening degree; when the difference value between the actual opening degree of the electronic throttle valve and the first throttle valve opening degree is larger than a first proportion threshold value, the electronic throttle valve is controlled to be gradually opened to the second throttle valve opening degree within the target duration; within the target duration, the electronic throttle valve is controlled to be gradually closed to the first throttle valve opening degree from the second throttle valve opening degree; and under the condition that the actual opening degree of the electronic throttle valve reaches the target throttle valve opening degree, an engine corresponding to the electronic throttle valve is started. According to the scheme, the icebreaking effect of the electronic throttle valve can be improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of automobile control technology, and in particular to an electronic throttle ice-breaking method, device, equipment, storage medium and program product. Background Art

[0002] With the rapid development of automobile control technology, the traditional mechanical throttle in the automobile engine can be replaced by an electronic throttle. The electronic throttle is opened / closed through electronic control. In some cases, the engine will have air intake. Since the engine's intake contains water vapor, when the temperature of the engine's working environment is low, the water vapor attached to the electronic throttle is easy to freeze. Therefore, the ice-breaking effect of the electronic throttle is particularly important.

[0003] In the related art, the vehicle can obtain the actual opening value and the expected opening value of the electronic throttle in real time, and control the electronic throttle to perform the ice-breaking operation according to the deviation between the actual opening value and the expected opening value of the electronic throttle.

[0004] However, in the solutions shown in the above-mentioned related technologies, the ice-breaking operation method of the electronic throttle valve is relatively simple, and the ice-breaking effect of the electronic throttle valve is relatively poor. Summary of the invention

[0005] The embodiment of the present application provides an electronic throttle ice-breaking method, device, equipment, storage medium and program product, which can improve the ice-breaking effect of the electronic throttle. The technical solution is as follows:

[0006] In one aspect, an electronic throttle ice breaking method is provided, the method comprising:

[0007] Obtain the vehicle's throttle drive status, speed, motor speed, battery voltage, water tank temperature, and intake air temperature;

[0008] When the throttle drive level state satisfies a specified condition, the speed is less than a specified vehicle speed, the motor speed is less than a specified speed, the battery voltage belongs to a specified voltage range, the water tank temperature belongs to a first temperature range, and the intake air temperature belongs to a second temperature range, the electronic throttle of the vehicle is controlled to close to a first throttle opening;

[0009] When the difference between the actual opening of the electronic throttle and the first throttle opening is greater than a first proportional threshold, controlling the electronic throttle to gradually open to the second throttle opening within a target time;

[0010] Within the target time, controlling the electronic throttle to gradually close from the second throttle opening to the first throttle opening;

[0011] When the actual opening of the electronic throttle reaches a target throttle opening, the engine corresponding to the electronic throttle is started; the target throttle opening is a throttle opening value obtained by adding a deviation threshold to the first throttle opening.

[0012] On the other hand, an electronic throttle valve ice breaking device is provided, the device comprising:

[0013] An information acquisition module is used to obtain the vehicle's throttle drive level status, speed, motor speed, battery voltage, water tank temperature, and intake air temperature;

[0014] an electronic throttle first closing module, for controlling the electronic throttle of the vehicle to close to a first throttle opening when the throttle drive stage state meets a specified condition, the speed is less than a specified vehicle speed, the motor speed is less than a specified speed, the battery voltage belongs to a specified voltage range, the water tank temperature belongs to a first temperature range, and the intake air temperature belongs to a second temperature range;

[0015] an electronic throttle opening module, configured to control the electronic throttle to gradually open to the second throttle opening within a target time period when the difference between the actual opening of the electronic throttle and the first throttle opening is greater than a first proportional threshold;

[0016] an electronic throttle valve second closing module, configured to control the electronic throttle valve to gradually close from the second throttle valve opening to the first throttle valve opening within the target time period;

[0017] The engine starting module is used to start the engine corresponding to the electronic throttle when the actual opening of the electronic throttle reaches the target throttle opening; the target throttle opening is the throttle opening value obtained by adding a deviation threshold to the first throttle opening.

[0018] In some embodiments, the electronic throttle opening module is used to obtain a calibrated slope value;

[0019] Determining a first target opening value based on the calibrated slope value and an upper limit opening of the second throttle opening;

[0020] The electronic throttle valve is controlled to be gradually opened to the second throttle valve opening according to the first target opening value.

[0021] In some embodiments, the electronic throttle opening module is used to obtain the product of the calibrated slope value and the opening time of the electronic throttle within the target time, and the minimum value of the upper limit opening of the second throttle opening, as the first target opening value.

[0022] In some embodiments, the electronic throttle second closing module is used to obtain a calibration slope value;

[0023] Determining a second target opening value based on the calibrated slope value and an upper limit opening of the first throttle opening;

[0024] The electronic throttle valve is controlled to be gradually closed to the first throttle valve opening according to the second target opening value.

[0025] In some embodiments, the electronic throttle second closing module is used to obtain the product of the calibrated slope value and the opening time of the electronic throttle within the target time, and the minimum value of the upper limit opening of the first throttle opening, as the second target opening value.

[0026] In some embodiments, the designated vehicle speed is 5 km / h, the designated rotation speed is 40 r / min, the designated voltage range is 9V to 16V, the first temperature range is -35°C to 0°C, and the second temperature range is -35°C to 0 degrees Celsius.

[0027] On the other hand, a computer device is provided, which includes a processor and a memory, wherein the memory stores at least one instruction, at least one program, a code set or an instruction set, and the at least one instruction, the at least one program, the code set or the instruction set is loaded and executed by the processor to implement the electronic throttle breaking ice method as described above.

[0028] On the other hand, a computer-readable storage medium is provided, wherein at least one instruction, at least one program, a code set or an instruction set is stored in the storage medium, and the at least one instruction, the at least one program, the code set or the instruction set is loaded and executed by a processor to implement the electronic throttle breaking ice method as described above.

[0029] In another aspect, a computer program product is provided, the computer program product comprising a computer program, the computer program being stored in a computer-readable storage medium. A processor of a computer device reads the computer program from the computer-readable storage medium, and the processor executes the computer program, so that the computer device executes the electronic throttle ice-breaking method provided in the above-mentioned various optional implementations.

[0030] The technical solution provided by this application may include the following beneficial effects: The vehicle obtains multiple operating parameters. When the multiple operating parameters meet the specified conditions, the ice-breaking operation of the electronic throttle is triggered, and the electronic throttle is controlled to gradually open to a relatively high second throttle opening degree and then close. By performing repeated opening and closing actions, it helps to break the ice layer on the electronic throttle. The gradual progressive operation avoids mechanical damage caused by sudden large throttle opening degree changes of the electronic throttle. During the ice-breaking process of the electronic throttle, the above solution ensures the equipment safety of the electronic throttle and effectively improves the ice-breaking effect of the electronic throttle.

[0031] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings herein are incorporated into the specification and constitute a part of this specification, showing embodiments consistent with this application, and are used together with the specification to explain the principles of this application.

[0033] Figure 1 It is a system configuration diagram of an electronic throttle ice-breaking method according to an embodiment of this application;

[0034] Figure 2 It is a flowchart of an electronic throttle ice-breaking method provided by an embodiment of this application;

[0035] Figure 3 It is a flowchart of an electronic throttle ice-breaking method provided by an embodiment of this application;

[0036] Figure 4 It is a flowchart of an electronic throttle ice-breaking method provided by an embodiment of this application;

[0037] Figure 5 It is a flowchart of an overall ice formation recognition and ice-breaking strategy provided by an embodiment of this application;

[0038] Figure 6 It is a schematic diagram of an ice-breaking strategy provided by an embodiment of this application;

[0039] Figure 7 It is a block diagram of an electronic throttle ice-breaking device provided by an exemplary embodiment of this application;

[0040] Figure 8 It is a schematic structural diagram of a computer device provided by an exemplary embodiment of this application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0041] Here, exemplary embodiments will be described in detail, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application.

[0042] Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as recited in the appended claims.

[0043] Figure 1 1 is a system diagram of an electronic throttle ice-breaking method according to an embodiment of the present application. Figure 1 As shown, the vehicle 100 includes an engine 100 a , and an electronic throttle valve 10 is mounted on the engine 100 a . The vehicle 100 can obtain its own throttle drive level state, speed, motor speed, battery voltage, water tank temperature and intake air temperature; when the throttle drive level state meets the specified conditions, the speed is less than the specified vehicle speed, the motor speed is less than the specified speed, the battery voltage belongs to the specified voltage range, the water tank temperature belongs to the first temperature range and the intake air temperature belongs to the second temperature range, the electronic throttle 10 of the vehicle 100 is controlled to close to the first throttle opening; when the difference between the actual opening of the electronic throttle 10 and the first throttle opening is greater than the first proportional threshold, the electronic throttle 10 is controlled to gradually open to the second throttle opening within the target time; within the target time, the electronic throttle 10 is controlled to gradually close from the second throttle opening to the first throttle opening; when the actual opening of the electronic throttle 10 meets the throttle opening value of the first throttle opening plus the deviation threshold (i.e., the target throttle opening), the engine 100a corresponding to the electronic throttle 10 is started.

[0044] For example, please refer to Figure 2 , Figure 2 This is a flow chart of an electronic throttle ice-breaking method provided in an embodiment of the present application. Figure 2 The electronic throttle de-icing method shown can be executed by a vehicle, for example, the vehicle can be the above-mentioned Figure 1 Vehicle 100 is shown.

[0045] like Figure 2 As shown, the electronic throttle ice-breaking method may include step 210, step 220, step 230, step 240 and step 250, which are specifically implemented as follows.

[0046] Step 210: Obtain the throttle drive stage state, speed, motor speed, battery voltage, water tank temperature, and intake air temperature of the vehicle.

[0047] The throttle driving stage state refers to the working state of the electronic throttle of the engine, and the working state may be normal or abnormal.

[0048] In the embodiment of the present application, the throttle drive level status is normal, indicating that the current electronic throttle is working normally and no abnormality occurs; the throttle drive level status is abnormal, indicating that the current electronic throttle is faulty and cannot work normally; the vehicle can obtain the throttle drive level status of the vehicle through the engine control system.

[0049] Among them, the above speed is the current driving speed of the vehicle. In the embodiment of the present application, the speed of the vehicle can be obtained by a vehicle speed sensor.

[0050] Among them, the above-mentioned motor speed is the rotation speed of the motor. In the embodiment of the present application, the vehicle can obtain the motor speed through monitoring by a motor speed sensor.

[0051] The battery voltage is the voltage level of the vehicle. In the embodiment of the present application, the battery voltage can be measured and obtained by a voltage sensor.

[0052] Among them, the above-mentioned water tank temperature is the temperature of the coolant of the vehicle. In the embodiment of the present application, the temperature of the coolant of the vehicle can be monitored by a water temperature sensor.

[0053] The above-mentioned intake temperature is the temperature of the air entering the engine. In the embodiment of the present application, the vehicle can obtain it by measuring the intake temperature sensor.

[0054] Step 220: When the throttle drive level state meets the specified conditions, the speed is less than the specified vehicle speed, the motor speed is less than the specified speed, the battery voltage belongs to the specified voltage range, the water tank temperature belongs to the first temperature range and the intake temperature belongs to the second temperature range, the vehicle's electronic throttle is controlled to close to the first throttle opening.

[0055] The above-mentioned specified conditions are preset to ensure that the electronic throttle is in a safe working range and throttle drive level state.

[0056] The designated vehicle speed is a preset lower vehicle speed, for example, 5 km / h.

[0057] The specified speed is a preset lower motor speed, for example, 40 r / min.

[0058] The first temperature range and the second temperature range are temperature ranges not exceeding 0 degrees, for example, -35°C to 0°C.

[0059] The first throttle opening is a preset smaller opening value, for example, 1%, which is used to indicate that the electronic throttle is closed to an almost closed state.

[0060] In the embodiment of the present application, if the electronic throttle can be smoothly closed to the first throttle opening, it means that there is no ice in the current electronic throttle; if the electronic throttle cannot be smoothly closed to the first throttle opening, it means that there is ice in the current electronic throttle, which affects the closing of the electronic throttle.

[0061] Step 230: When the difference between the actual opening of the electronic throttle and the first throttle opening is greater than a first proportional threshold, the electronic throttle is controlled to gradually open to a second throttle opening within a target duration.

[0062] The first proportional threshold is a preset electronic throttle opening threshold, for example, 5%.

[0063] In an embodiment of the present application, the difference between the actual opening of the above-mentioned electronic throttle and the first throttle opening is greater than the first proportional threshold, indicating that the electronic throttle cannot be closed to an almost closed state, and ice may appear in the electronic throttle, hindering the closing operation of the electronic throttle.

[0064] The second throttle opening is a preset opening value slightly larger than the first throttle opening, for example, 15%.

[0065] The target duration is a preset duration, for example, 4 seconds.

[0066] In an embodiment of the present application, when the actual opening of the electronic throttle is close to but has not reached the first throttle opening, the vehicle can control the electronic throttle to gradually open to the second throttle opening within a target time.

[0067] For example, assuming that the second throttle opening is set to 40%, when the vehicle detects that the actual opening of the electronic throttle is 30%, the vehicle will control the electronic throttle to gradually open to 40% within the next 5 seconds.

[0068] Within the target time, the vehicle can control the electronic throttle to perform the opening operation multiple times, and when the electronic throttle is opened to the second throttle opening, the opening operation is exited.

[0069] Step 240: within the target time, control the electronic throttle to gradually close from the second throttle opening to the first throttle opening.

[0070] In an embodiment of the present application, after the opening of the electronic throttle reaches the second throttle opening, the vehicle gradually closes the electronic throttle to the first throttle opening within a target time to ensure the ice-breaking effect.

[0071] For example, assuming that the first throttle opening is set to 1%, after the vehicle detects that the electronic throttle has been opened to the second throttle opening, the vehicle controls the electronic throttle to be gradually closed to 1%.

[0072] Step 250: When the actual opening of the electronic throttle reaches the target throttle opening, the engine corresponding to the electronic throttle is started; the target throttle opening is the throttle opening value obtained by adding the deviation threshold to the first throttle opening.

[0073] The above deviation threshold is the allowable difference between the actual opening of the electronic throttle and the first throttle opening, for example, ±3%, that is, the actual opening of the electronic throttle can be greater than / less than 3% of the first throttle opening.

[0074] In an embodiment of the present application, the vehicle obtains multiple operating parameters, and when the multiple operating parameters meet specified conditions, the ice-breaking operation of the electronic throttle is triggered, and the electronic throttle is controlled to gradually open to a higher second throttle opening, and then closed. By performing repeated opening and closing actions, it helps to break the ice layer on the electronic throttle, and avoids mechanical damage caused by sudden large opening changes of the electronic throttle through gradual and progressive operations. The above scheme ensures the equipment safety of the electronic throttle during the ice-breaking process of the electronic throttle, and effectively improves the ice-breaking effect of the electronic throttle.

[0075] In some embodiments, the vehicle can obtain meteorological data of the vehicle's environment in real time, and the meteorological data includes ambient temperature, air humidity and precipitation type; when the meteorological data meets specified conditions, the vehicle's electronic throttle is controlled to close to a first throttle opening, and the specified conditions include that the ambient temperature does not exceed -10°C, the air humidity is not less than 70°C, or the precipitation type is freezing rain / hail, and the first throttle opening is dynamically adjusted according to the ambient temperature. For every 5°C decrease in ambient temperature, the first throttle opening increases by 0.5%; within a target time, the electronic throttle is controlled to gradually open to a second throttle opening; within the target time, the electronic throttle is controlled to gradually close from the second throttle opening to the first throttle opening; when the actual opening of the electronic throttle reaches the target throttle opening, the engine corresponding to the electronic throttle is started; the target throttle opening is the throttle opening value of the first throttle opening plus a deviation threshold.

[0076] Among them, the above-mentioned ambient temperature refers to the temperature outside the vehicle. In the embodiment of the present application, the vehicle can obtain the temperature outside the vehicle through an ambient temperature sensor.

[0077] The above-mentioned air humidity refers to the content of water vapor in the air. In the embodiment of the present application, the vehicle can obtain the air humidity through an air humidity sensor.

[0078] Among them, the above-mentioned precipitation types include different forms of precipitation such as rain, snow, sleet or hail. In the embodiment of the present application, the vehicle can obtain precipitation information in real time through the Internet of Vehicles to determine the precipitation type.

[0079] In an embodiment of the present application, when the above-mentioned meteorological data meets the specified conditions, it indicates that the current environment in which the vehicle is located is relatively harsh and prone to icing. The opening of the electronic throttle is dynamically adjusted according to the specific meteorological conditions, so that the vehicle can maintain the best working state in a changeable climate environment and improve the ice-breaking effect.

[0080] Based on the solutions shown in any one or more of the above embodiments of the present application, please refer to Figure 3 , Figure 3 2 is a flow chart of an electronic throttle ice-breaking method provided by an embodiment of the present application. The above step 230 can be implemented as step 230a, step 230b and step 230c, as follows.

[0081] Step 230a: Obtain a calibration slope value.

[0082] The calibration slope value is a preset parameter used to describe the speed at which the electronic throttle valve is adjusted from one opening to another, and represents the change in the opening of the electronic throttle valve per unit time.

[0083] In an embodiment of the present application, the calibration slope value may be stored in a motor control system, and the vehicle may obtain the calibration slope from the motor control system.

[0084] Step 230b: Determine a first target opening value based on the calibrated slope value and the upper limit opening of the second throttle valve opening.

[0085] The upper limit of the second throttle opening is the maximum opening value allowed when the vehicle controls the electronic throttle to open to the second throttle opening.

[0086] In an embodiment of the present application, the upper limit opening of the second throttle valve can be stored in a motor control system, and different vehicle models can correspond to different second throttle valve openings and different upper limit openings of the second throttle valve; the corresponding second throttle valve opening and the upper limit opening of the second throttle valve may also be different under different working environments of the vehicle.

[0087] Step 230c: Control the electronic throttle valve to gradually open to a second throttle valve opening according to the first target opening value.

[0088] In the embodiment of the present application, after the vehicle determines the first target opening value through the motor control system, the electronic throttle is controlled to gradually open to the second target opening value.

[0089] In an embodiment of the present application, the vehicle controls the electronic throttle to gradually open according to the first target opening value determined based on the calibrated slope value and the upper limit opening of the second throttle opening, thereby achieving fine control of the electronic throttle, effectively preventing potential risks caused by the electronic throttle opening too quickly or too much, and further improving the stability of the electronic throttle opening operation.

[0090] Based on the scheme shown in any one or more of the above-mentioned embodiments of the present application, the above-mentioned step 230b can be implemented as: obtaining the product of the calibrated slope value and the opening time of the electronic throttle within the target time, and the minimum value of the upper limit opening of the second throttle opening, as the first target opening value.

[0091] The opening duration within the above target duration represents the time length for gradually adjusting the electronic throttle from an initial opening (eg, a first throttle opening) to a final desired opening (eg, a second throttle opening).

[0092] In an embodiment of the present application, the product of the calibrated slope value and the opening time of the electronic throttle within the target time length is obtained by multiplying the pre-set calibrated slope value with the time length planned for gradually increasing the throttle opening. The product represents the maximum opening increment that the electronic throttle can theoretically achieve within the target time period based on the currently set adjustment rate.

[0093] In the embodiment of the present application, after the vehicle obtains the product, it compares the product with the upper limit opening of the second throttle valve, and uses the upper limit opening of the second throttle valve to limit the upper limit opening of the first target opening value.

[0094] When the product is less than the upper limit of the second throttle opening, it means that ice may be stuck in the electronic throttle, and the electronic throttle cannot increase the opening to the second throttle opening. At this time, the product of the calibrated slope value and the opening time of the electronic throttle within the target time is used as the target of this opening operation. The opening operation is performed to make the electronic throttle break through the current opening and perform an effective ice-breaking operation. When the product is greater than the upper limit of the second throttle opening, the second throttle opening is obtained as the target opening value of this opening operation. There is no need to open it too wide to avoid mechanical damage caused by excessive throttle opening.

[0095] In an embodiment of the present application, the product of the above-mentioned calibrated slope value and the opening time of the electronic throttle within the target time can reflect the actual opening of the electronic throttle. On this basis, the first target opening value of the electronic throttle is limited by the upper limit opening of the second throttle. On the basis of ensuring that no mechanical damage is caused to the electronic throttle port, the electronic throttle can effectively achieve the ice-breaking effect.

[0096] Based on the solutions shown in any one or more of the above embodiments of the present application, please refer to Figure 4 , Figure 4 2 is a flow chart of an electronic throttle ice-breaking method provided by an embodiment of the present application. The above step 240 can be implemented as step 240a, step 240b and step 240c, as follows.

[0097] Step 240a: Obtain a calibration slope value.

[0098] The calibration slope value is a preset parameter used to describe the speed at which the electronic throttle valve is adjusted from one opening to another, and represents the change in the opening of the electronic throttle valve per unit time.

[0099] In an embodiment of the present application, the calibration slope value may be stored in a motor control system, and the vehicle may obtain the calibration slope from the motor control system.

[0100] Step 240b: Determine a second target opening value based on the calibrated slope value and the upper limit opening of the first throttle opening.

[0101] The upper limit of the first throttle opening is a maximum allowable opening value set when the electronic throttle is gradually closed from a higher second throttle opening to an initial first throttle opening.

[0102] In an embodiment of the present application, the upper limit opening of the first throttle valve opening can be stored in a motor control system, and different vehicle models can correspond to different first valve openings and upper limit openings of the first throttle valve openings; when the vehicle is in different working environments, the corresponding first throttle valve opening and the upper limit opening of the first throttle valve opening may also be different.

[0103] Step 240c: Control the electronic throttle valve to gradually close to the first throttle valve opening according to the second target opening value.

[0104] In the embodiment of the present application, after the vehicle determines the first target opening value through the motor control system, the electronic throttle is controlled to gradually close to the first target opening value.

[0105] In an embodiment of the present application, the vehicle controls the electronic throttle to gradually close according to the second target opening value determined based on the calibrated slope value and the upper limit opening of the first throttle opening, thereby achieving fine control of the electronic throttle, effectively preventing potential risks caused by too fast closing of the electronic throttle, and further improving the stability of the electronic throttle closing operation.

[0106] Based on the scheme shown in any one or more of the above-mentioned embodiments of the present application, the above-mentioned step 240b can be implemented as: obtaining the product of the calibrated slope value and the opening time of the electronic throttle within the target time, and the minimum value of the upper limit opening of the first throttle opening, and determining the second target opening value.

[0107] In an embodiment of the present application, the product of the calibrated slope value and the opening time of the electronic throttle within the target time length is obtained by multiplying the pre-set calibrated slope value with the time length planned for gradually increasing the throttle opening. The product represents the maximum opening increment that the electronic throttle can theoretically achieve within the target time period based on the currently set adjustment rate.

[0108] The opening time within the above target time represents the time period during which the electronic throttle is planned to be gradually adjusted from a lower initial opening (e.g., the first throttle opening) to a higher desired opening (e.g., the second throttle opening). The selection of this time length needs to take into account multiple factors, including but not limited to the current state of the vehicle, external environmental conditions, and the required safety margin.

[0109] In the embodiment of the present application, after the vehicle obtains the product, it compares the product with the upper limit opening of the first throttle opening, and uses the upper limit opening of the first throttle opening to limit the upper limit opening of the second target opening value.

[0110] When the product is less than the upper limit of the first throttle opening, it means that ice may be stuck in the electronic throttle valve and the electronic throttle valve cannot close to the first throttle opening. At this time, the product is used as the target opening value of this closing operation, and the closing operation is performed to make the electronic throttle valve perform an effective ice-breaking operation. When the product is greater than the upper limit of the first throttle valve opening, the first throttle valve opening is obtained as the target opening value of this closing operation. There is no need to close too small, so as to avoid the electronic throttle valve being unable to exhaust due to closing too small.

[0111] In an embodiment of the present application, the vehicle calculates the calibrated slope value and the opening time of the electronic throttle within the target time, and compares the product with the upper limit opening of the first throttle opening, and obtains the minimum value as the second target opening value, thereby achieving precise control of the electronic throttle closing process, effectively ensuring that the actual opening of the electronic throttle does not exceed the preset safety range, avoiding mechanical damage or performance degradation due to excessive closure, and effectively ensuring the stability of the electronic throttle closing.

[0112] Based on the scheme shown in any one or more of the above-mentioned embodiments of the present application, the specified vehicle speed is 5km / h, the specified speed is 40r / min, the specified voltage range is 9V to 16V, the first temperature range is -35℃ to 0℃, and the second temperature range is -35℃ to 0 degrees Celsius.

[0113] In the embodiment of the present application, specific values ​​and value ranges of the above-mentioned multiple operating parameters are set. Low vehicle speed and low motor speed reduce the dynamic load during vehicle driving, which is beneficial to the stability of the vehicle in performing ice-breaking operations. A reasonable range is set for the battery voltage, which can effectively ensure the stability of the power supply for the ice-breaking operation and prevent the vehicle's ice-breaking operation from being affected by voltage fluctuations. The above-mentioned parameter settings effectively ensure that the vehicle can start smoothly in a low-temperature environment to perform ice-breaking operations, thereby improving the safety of ice-breaking operations.

[0114] Based on the above Figures 2 to 4 The steps in the embodiments of the present application illustrate a strategy for optimizing torque fluctuations in a hybrid vehicle trailer condition.

[0115] For example, please refer to Figure 5 , Figure 5 FIG. 1 is a flow chart of an overall ice recognition and ice breaking strategy provided by an embodiment of the present application. Figure 5 As shown, the strategy includes step 51, step 52, step 53 and step 54, which are specifically as follows.

[0116] Step 51: Power up the engine

[0117] In an embodiment of the present application, the vehicle powers up the engine so that the engine has sufficient power to perform subsequent ice-breaking operations.

[0118] Step 52: Perform an Icing Check

[0119] In an embodiment of the present application, the vehicle obtains multiple parameter information to determine whether the parameter information meets specified conditions. The parameter information includes but is not limited to throttle drive level status, vehicle speed, motor speed, battery voltage, water temperature and intake temperature.

[0120] Determine whether the throttle drive stage is in normal condition. If the throttle drive stage is in normal condition, it means that there is no fault in the throttle drive. Check whether the intake air temperature is between -35 degrees and 0 degrees, whether the engine water temperature is between -35 degrees and 0 degrees, whether the voltage is between 9V and 16V, whether the engine speed does not exceed 40r / min, and whether the vehicle speed is less than 5km / h.

[0121] Step 53: Implement ice-breaking strategies

[0122] In an embodiment of the present application, the vehicle executes the ice-breaking strategy when it detects that the throttle drive level status is normal, the intake temperature is between -35°C and 0°C, the engine water temperature is between -35°C and 0°C, the voltage is between 9V and 16V, the engine speed does not exceed 40r / min, and the vehicle speed is less than 5km / h.

[0123] a) In step 0 of the ice breaking check, first open the throttle to the target opening, i.e. 1%.

[0124] b) In the first step of ice-breaking check, determine whether the throttle valve has reached the target opening threshold. If the difference between the actual throttle valve opening and the target opening is less than 0.5%, exit the ice-breaking check steps 2-3. If the difference between the actual throttle valve opening and the target opening is greater than 0.5%, maintain the target throttle valve opening of 1% and determine whether the ice-breaking reaches the maximum time threshold (2s) for the target opening.

[0125] c) In the second step of ice breaking check, determine whether the ice breaking reaches the upper limit of the target opening position, i.e. 40%. Open the throttle to the target throttle opening (40%). Multiply the calibrated slope value by the time and take the smaller value of the upper limit of the target position to obtain the target opening value for ice breaking. The duration for maintaining the target opening upper limit is 0.2s.

[0126] d) In the third step of ice-breaking check, determine whether the throttle opening reaches the lower limit value (1%) of the target closing position, close the throttle to the target throttle opening of 1%, multiply the calibration slope value by the time, and take the smaller value of the upper limit value of the target position to obtain the target opening value for ice-breaking. The duration of maintaining the target closing lower limit value is 0.2s.

[0127] The vehicle detects that the actual throttle opening reaches below the lower limit value (1%) of the target closed position + the allowable deviation threshold (0.5%) of the target lower limit value, and exits ice breaking.

[0128] For example, please refer to Figure 6 , Figure 6 This is a schematic diagram of an ice-breaking strategy provided by an embodiment of the present application.

[0129] like Figure 6 As shown, the throttle valve performs the ice-breaking operation for the first time and cannot reach the allowable target position for ice-breaking (i.e., the target position + the upper and lower limit thresholds of the allowable deviation). The ice-breaking operation is performed four times in succession, and each ice-breaking operation includes one opening and one closing. The four ice-breaking operations are allowed to be performed for a specified time.

[0130] Step 54: Allowing the Engine to Start

[0131] If d) ice breaking fails, repeat the power-on ice breaking attempt for a maximum of 4 times. If ice breaking succeeds or there is no ice, the engine is allowed to start.

[0132] In the embodiment of the present application, the above scheme involves ice recognition and ice breaking strategy of the electronic throttle of a hybrid vehicle at low temperature. The above strategy scheme can be applied to the current vehicle model equipped with the H4J15 engine and equipped with an EGR (Exhaust Gas Recirculation) exhaust gas self-circulation device. Under low temperature environmental conditions, especially near 0°C, the EGR working condition is above 0°C. During the operation of the engine, if there is a lot of water vapor inside the engine manifold, the water vapor will condense on the throttle valve plate at low temperature in the low temperature environment. Ice on the throttle valve plate gradually forms as the temperature of the engine drops; it may also be formed during driving, which will cause the throttle to be unable to open from the current position to the fully open position after power-on, which may easily cause the throttle body PID (Proportional-Integral-Derivative) adjustment to exceed the limit, the throttle is stuck, and when the engine is turned off and stopped, the intake pipe is disassembled to observe the presence of ice near the DVE (Direct Variable Exchanger) valve plate.

[0133] In the embodiments of the present application, the above-mentioned scheme can save costs, provide a solution for the company's vehicle model platform development, and effectively reduce after-sales complaints about vehicles.

[0134] Please refer to Figure 7 , which shows a block diagram of an electronic throttle valve ice-breaking device provided by an exemplary embodiment of the present application. The electronic throttle valve ice-breaking device can be implemented as all or part of a computer device by hardware or a combination of hardware and software to achieve the above Figures 2 to 4 All or part of the steps in the embodiments shown. Figure 7 As shown, the electronic throttle valve ice breaking device comprises:

[0135] The information acquisition module 701 is used to acquire the throttle drive level state, speed, motor speed, battery voltage, water tank temperature and intake air temperature of the vehicle;

[0136] The electronic throttle first closing module 702 is used to control the electronic throttle of the vehicle to close to the first throttle opening when the throttle driving level state meets the specified conditions, the speed is less than the specified vehicle speed, the motor speed is less than the specified speed, the battery voltage belongs to the specified voltage range, the water tank temperature belongs to the first temperature range, and the intake air temperature belongs to the second temperature range;

[0137] The electronic throttle opening module 703 is used to control the electronic throttle to gradually open to a second throttle opening within a target time when the difference between the actual opening of the electronic throttle and the first throttle opening is greater than a first proportional threshold;

[0138] The electronic throttle second closing module 704 is used to control the electronic throttle to gradually close from the second throttle opening to the first throttle opening within the target time length;

[0139] The engine starting module 705 is used to start the engine corresponding to the electronic throttle when the actual opening of the electronic throttle reaches the target throttle opening; the target throttle opening is the throttle opening value obtained by adding the deviation threshold to the first throttle opening.

[0140] In some embodiments, the electronic throttle opening module 703 is used to obtain a calibrated slope value;

[0141] Determining a first target opening value based on the calibrated slope value and an upper limit opening of the second throttle valve opening;

[0142] The electronic throttle valve is controlled to be gradually opened to a second throttle valve opening according to the first target opening value.

[0143] In some embodiments, the electronic throttle opening module 703 is used to obtain the product of the calibrated slope value and the opening time of the electronic throttle within the target time, and the minimum value of the upper limit opening of the second throttle opening as the first target opening value.

[0144] In some embodiments, the electronic throttle second closing module 704 is used to obtain a calibration slope value;

[0145] Determining a second target opening value based on the calibrated slope value and an upper limit opening of the first throttle opening;

[0146] The electronic throttle valve is controlled to be gradually closed to the first throttle valve opening according to the second target opening value.

[0147] In some embodiments, the electronic throttle second closing module 704 is used to obtain the product of the calibrated slope value and the opening time of the electronic throttle within the target time, and the minimum value of the upper limit opening of the first throttle opening to determine the second target opening value.

[0148] In some embodiments, the specified vehicle speed is 5 km / h, the specified speed is 40 r / min, the specified voltage range is 9V to 16V, the first temperature range is -35°C to 0°C, and the second temperature range is -35°C to 0°C.

[0149] Please refer to Figure 8 , Figure 8800 is a schematic diagram of the structure of a computer device provided by an exemplary embodiment of the present application. The computer device 800 includes a central processing unit (CPU) 801, a system memory 804 including a random access memory (RAM) 802 and a read-only memory (ROM) 803, and a system bus 805 connecting the system memory 804 and the central processing unit 801. The computer device 800 also includes a basic input / output system (I / O system) 806 that helps transmit information between various devices in the computer, and a large-capacity storage device 807 for storing an operating system 813, application programs 814 and other program modules 815.

[0150] The basic input / output system 806 includes a display 808 for displaying information and an input device 809 such as a mouse and a keyboard for user inputting information. The display 808 and the input device 809 are connected to the central processing unit 801 through an input / output controller 810 connected to the system bus 805. The basic input / output system 806 may also include an input / output controller 810 for receiving and processing inputs from a plurality of other devices such as a keyboard, a mouse, or an electronic stylus. Similarly, the input / output controller 810 also provides output to a display screen, a printer, or other types of output devices.

[0151] The mass storage device 807 is connected to the central processing unit 801 through a mass storage controller (not shown) connected to the system bus 805. The mass storage device 807 and its associated computer readable media provide non-volatile storage for the computer device 800. That is, the mass storage device 807 may include a computer readable medium (not shown) such as a hard disk or a CD-ROM (Compact Disc Read-Only Memory) drive.

[0152] Without loss of generality, computer readable media may include computer storage media and communication media. Computer storage media include volatile and non-volatile, removable and non-removable media implemented by any method or technology for storing information such as computer readable instructions, data structures, program modules or other data. Computer storage media include RAM (Random Access Memory), ROM (Read-Only Memory), EPROM (Erasable Programmable Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), flash memory or other solid-state storage technologies, CD-ROM, DVD (Digital Video Disc) or other optical storage, cassettes, magnetic tapes, disk storage or other magnetic storage devices. Of course, those skilled in the art will appreciate that computer storage media are not limited to the above. The above-mentioned system memory 804 and mass storage device 807 can be collectively referred to as memory.

[0153] The computer device 800 can be connected to the Internet or other network devices through a network interface unit 811 connected to the system bus 805 .

[0154] The memory also includes one or more programs, one or more programs are stored in the memory, and the central processing unit 801 implements the one or more programs by executing the one or more programs. Figures 2 to 4 All or part of the steps in the method shown.

[0155] In an exemplary embodiment, a chip is also provided. The chip includes a programmable logic circuit and / or program instructions. When the chip runs on a computer device, it is used to implement all or part of the steps of the method shown in the above embodiments of the present application.

[0156] In an exemplary embodiment, a computer program product is also provided, the computer program product includes computer instructions, the computer instructions are stored in a computer-readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor reads and executes the computer instructions from the computer-readable storage medium to implement all or part of the steps of the method shown in the above-mentioned various embodiments of the present application.

[0157] In an exemplary embodiment, a computer-readable storage medium is also provided, in which a computer program is stored. The computer program is loaded and executed by a processor to implement all or part of the steps of the method shown in the above-mentioned embodiments of the present application.

[0158] A person skilled in the art will understand that all or part of the steps to implement the above embodiments may be accomplished by hardware or by instructing related hardware through a program. The above program may be stored in a computer-readable storage medium. The above storage medium may be a read-only memory, a disk or an optical disk, etc.

[0159] Those skilled in the art should be aware that in one or more of the above examples, the functions described in the embodiments of the present application can be implemented with hardware, software, firmware, or any combination thereof. When implemented using software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein the communication media include any media that facilitates the transmission of a computer program from one place to another. The storage medium can be any available medium that a general or special-purpose computer can access.

[0160] The above are only optional embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An electronic throttle ice breaking method, characterized in that: The method comprises: Obtain the vehicle's throttle drive status, speed, motor speed, battery voltage, water tank temperature, and intake air temperature; When the throttle drive level state satisfies a specified condition, the speed is less than a specified vehicle speed, the motor speed is less than a specified speed, the battery voltage belongs to a specified voltage range, the water tank temperature belongs to a first temperature range, and the intake air temperature belongs to a second temperature range, the electronic throttle of the vehicle is controlled to close to a first throttle opening; When the difference between the actual opening of the electronic throttle and the first throttle opening is greater than a first proportional threshold, controlling the electronic throttle to gradually open to the second throttle opening within a target time; Within the target time, controlling the electronic throttle to gradually close from the second throttle opening to the first throttle opening; When the actual opening of the electronic throttle reaches a target throttle opening, the engine corresponding to the electronic throttle is started; the target throttle opening is a throttle opening value obtained by adding a deviation threshold to the first throttle opening.

2. The method according to claim 1, characterized in that The step of controlling the electronic throttle to gradually open to the second throttle opening within the target duration includes: Get the calibration slope value; Determining a first target opening value based on the calibrated slope value and an upper limit opening of the second throttle opening; The electronic throttle valve is controlled to be gradually opened to the second throttle valve opening according to the first target opening value.

3. The method according to claim 2, characterized in that The determining of a first target opening value based on the calibrated slope value and the upper limit opening of the second throttle opening comprises: The product of the calibrated slope value, the opening duration of the electronic throttle within the target duration, and the minimum value of the upper limit opening of the second throttle opening are obtained as the first target opening value.

4. The method according to claim 1, characterized in that: The step of controlling the electronic throttle to gradually close from the second throttle opening to the first throttle opening within the target time period includes: Get the calibration slope value; Determining a second target opening value based on the calibrated slope value and an upper limit opening of the first throttle opening; The electronic throttle valve is controlled to be gradually closed to the first throttle valve opening according to the second target opening value.

5. The method according to claim 4, characterized in that The determining of a second target opening value based on the calibrated slope value and the upper limit opening of the first throttle opening comprises: The product of the calibrated slope value, the opening duration of the electronic throttle within the target duration, and the minimum value of the upper limit opening of the first throttle opening are obtained as the second target opening value.

6. The method according to claim 1, characterized in that The designated vehicle speed is 5 km / h, the designated rotation speed is 40 r / min, the designated voltage range is 9 V to 16 V, the first temperature range is -35°C to 0°C, and the second temperature range is -35°C to 0°C.

7. An electronic throttle valve ice breaking device, characterized in that: The device comprises: An information acquisition module is used to obtain the vehicle's throttle drive level status, speed, motor speed, battery voltage, water tank temperature, and intake air temperature; an electronic throttle first closing module, for controlling the electronic throttle of the vehicle to close to a first throttle opening when the throttle drive stage state meets a specified condition, the speed is less than a specified vehicle speed, the motor speed is less than a specified speed, the battery voltage belongs to a specified voltage range, the water tank temperature belongs to a first temperature range, and the intake air temperature belongs to a second temperature range; an electronic throttle opening module, configured to control the electronic throttle to gradually open to the second throttle opening within a target time period when the difference between the actual opening of the electronic throttle and the first throttle opening is greater than a first proportional threshold; an electronic throttle valve second closing module, configured to control the electronic throttle valve to gradually close from the second throttle valve opening to the first throttle valve opening within the target time period; The engine starting module is used to start the engine corresponding to the electronic throttle when the actual opening of the electronic throttle reaches the target throttle opening; the target throttle opening is the throttle opening value obtained by adding a deviation threshold to the first throttle opening.

8. A computer device, characterized in that: The computer device includes a processor and a memory, wherein instructions are stored in the memory, and the instructions are executed by the processor to implement the electronic throttle ice-breaking method as described in any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that: The storage medium stores instructions, and the instructions are executed by a processor of a computer device to implement the electronic throttle ice-breaking method as described in any one of claims 1 to 6.

10. A computer program product, characterized in that The computer program product includes computer instructions, which are stored in a computer-readable storage medium; the computer instructions are read and executed by a processor of a computer device to implement the electronic throttle ice-breaking method as described in any one of claims 1 to 6.

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