Arrangement method, device, vehicle and storage medium for vehicle external temperature sensing equipment

Abstract

This application relates to the field of vehicle technology, and in particular to a method, apparatus, vehicle, and storage medium for arranging external temperature sensors in a vehicle. The method includes: determining at least one driving condition of the current vehicle; acquiring the corresponding cooling unit heat dissipation and fan duty cycle for each driving condition; generating an initial arrangement strategy for the external temperature sensors; acquiring temperature rise data of the external temperature sensors under each driving condition based on the initial arrangement strategy; and when the temperature rise data under each driving condition meets the corresponding temperature rise target, using the initial arrangement strategy as the final arrangement strategy for the external temperature sensors. This solves the problems of low accuracy and efficiency, large workload, and complex acquisition process in related technologies. By using simulation to guide the arrangement strategy of the external temperature sensors during the development phase, the accuracy of temperature acquisition during actual vehicle road driving is ensured.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a method, apparatus, vehicle, and storage medium for arranging a vehicle external temperature sensing device. Background Technology

[0002] With the increasing demand for intelligent vehicles and long driving range, vehicle air conditioning systems are now equipped with multi-temperature zones or even multi-zone configurations to meet users' personalized needs and achieve optimal energy consumption. The accuracy of external temperature sensors directly affects the working efficiency of the air conditioning system and the comfort of passengers. External temperature sensors are usually located inside the car's air intake grille, but due to factors such as vehicle speed, placement, and the sealing of the air deflector, their readings may deviate from the actual ambient temperature, thus affecting the normal operation of the air conditioning system.

[0003] In related technologies, the accuracy of external temperature sensing devices is mainly adjusted through experimental calibration and strategy correction of external temperature values.

[0004] However, calibrating and correcting external temperature values ​​through experiments is not only labor-intensive, inefficient, and has low measurement accuracy and high cost, but it can only be achieved when the vehicle's overall condition (hardware and software) is relatively perfect, thus affecting the operation and development of vehicle air conditioning, which urgently needs to be addressed. Summary of the Invention

[0005] This application provides a method, device, vehicle, and storage medium for arranging a vehicle external temperature sensing device to solve the problems of low accuracy and efficiency, large workload, and complex acquisition process in related technologies.

[0006] The first aspect of this application provides a method for arranging a vehicle external temperature sensing device, including the following steps:

[0007] Determine at least one driving condition of the current vehicle;

[0008] The initial layout strategy of the current vehicle external temperature sensing device is generated based on the cooling unit heat dissipation and fan duty cycle corresponding to each driving condition.

[0009] Based on the initial layout strategy, the temperature rise data of the current vehicle external temperature sensor under each driving condition is obtained, and it is determined whether the temperature rise data under each driving condition meets the temperature rise target corresponding to each driving condition. When the temperature rise data under each driving condition meets the corresponding temperature rise target, the initial layout strategy of the current vehicle external temperature sensor is taken as the final layout strategy of the current vehicle external temperature sensor.

[0010] According to one embodiment of this application, obtaining the temperature rise data of the current vehicle external temperature sensing device under each driving condition includes:

[0011] The surface temperature of the thermistor in the vehicle's external temperature sensing device and the ambient temperature under each driving condition are obtained.

[0012] The surface temperature of the thermistor was simulated to obtain the average surface temperature of the thermistor.

[0013] The temperature difference between the average surface temperature of the thermal element and the ambient temperature under each driving condition is calculated to obtain the temperature rise data of the current vehicle external temperature sensing device under each driving condition.

[0014] According to one embodiment of this application, after determining whether the temperature rise data under each driving condition meets the temperature rise target corresponding to each driving condition, the method further includes:

[0015] If the temperature rise data under any driving condition does not meet the corresponding temperature rise target, the initial layout strategy is optimized until the temperature rise data under each driving condition meets the corresponding temperature rise target, and then the final layout strategy of the current vehicle external temperature sensing device is output.

[0016] According to one embodiment of this application, after obtaining the final layout strategy of the current vehicle external temperature sensing device, the method further includes:

[0017] Based on the final deployment strategy, at least one deployment location of the current vehicle external temperature sensing device is determined;

[0018] Based on each placement location of the current vehicle external temperature sensor, the placement range and exposure standard of the current vehicle external temperature sensor and the placement location are generated.

[0019] An aesthetic evaluation of the current vehicle external temperature sensor is generated based on the arrangement range between the current vehicle external temperature sensor and the location and the exposure standard.

[0020] According to one embodiment of this application, the connector harness of the current vehicle external temperature sensing device is arranged at an angle downward or horizontally.

[0021] According to the vehicle external temperature sensing device arrangement method of this application embodiment, at least one driving condition of the current vehicle is determined. Based on each driving condition, the corresponding cooling unit heat dissipation and fan duty cycle are obtained to generate an initial arrangement strategy for the current vehicle external temperature sensing device. Based on the initial arrangement strategy, temperature rise data of the current vehicle external temperature sensing device under each driving condition is obtained. When the temperature rise data under each driving condition meets the corresponding temperature rise target, the initial arrangement strategy of the current vehicle external temperature sensing device is used as the final arrangement strategy of the current vehicle external temperature sensing device. This solves the problems of low accuracy and efficiency of temperature acquisition, large workload, and complex acquisition process in related technologies. By using simulation to guide the arrangement strategy of the external temperature sensing device during the development stage, the accuracy of temperature acquisition during actual vehicle road driving is guaranteed.

[0022] A second aspect of this application provides an arrangement device for a vehicle external temperature sensing device, comprising:

[0023] The determination module is used to determine at least one driving condition of the current vehicle;

[0024] The generation module is used to obtain the heat dissipation of the cooling unit and the fan duty cycle corresponding to each driving condition, so as to generate the initial layout strategy of the current vehicle external temperature sensing device based on the heat dissipation of the cooling unit and the fan duty cycle corresponding to each driving condition.

[0025] The arrangement module is used to obtain the temperature rise data of the current vehicle external temperature sensing device under each driving condition based on the initial arrangement strategy, and to determine whether the temperature rise data under each driving condition meets the temperature rise target corresponding to each driving condition. When the temperature rise data under each driving condition meets the corresponding temperature rise target, the initial arrangement strategy of the current vehicle external temperature sensing device is used as the final arrangement strategy of the current vehicle external temperature sensing device.

[0026] According to one embodiment of this application, the arrangement module includes:

[0027] The acquisition unit is used to acquire the surface temperature of the thermistor in the current vehicle external temperature sensing device and the ambient temperature under each driving condition;

[0028] The simulation unit is used to simulate the surface temperature of the thermistor and obtain the average surface temperature of the thermistor.

[0029] The calculation unit is used to calculate the temperature difference between the average surface temperature of the thermal element and the ambient temperature under each driving condition, so as to obtain the temperature rise data of the current vehicle external temperature sensing device under each driving condition.

[0030] According to one embodiment of this application, after determining whether the temperature rise data under each driving condition meets the temperature rise target corresponding to each driving condition, the arrangement module further includes:

[0031] An optimization unit is used to optimize the initial layout strategy if the temperature rise data under any driving condition does not meet the corresponding temperature rise target, until the temperature rise data under each driving condition meets the corresponding temperature rise target, and then output the final layout strategy of the current vehicle external temperature sensing device.

[0032] According to one embodiment of this application, after obtaining the final layout strategy of the current vehicle external temperature sensing device, the layout module further includes:

[0033] The determining unit is configured to determine at least one placement location of the current vehicle external temperature sensing device based on the final placement strategy.

[0034] The first generation unit is used to generate the arrangement range and exposure standard of the current vehicle external temperature sensing device and the arrangement position based on each arrangement position of the current vehicle external temperature sensing device.

[0035] The second generation unit is used to generate an aesthetic evaluation of the current vehicle external temperature sensing device based on the arrangement range between the current vehicle external temperature sensing device and the arrangement location and the exposure standard.

[0036] According to one embodiment of this application, the connector harness of the current vehicle external temperature sensing device is arranged at an angle downward or horizontally.

[0037] According to the vehicle external temperature sensing device arrangement apparatus of this application embodiment, at least one driving condition of the current vehicle is determined. Based on each driving condition, the corresponding cooling unit heat dissipation and fan duty cycle are obtained to generate an initial arrangement strategy for the current vehicle external temperature sensing device. Based on the initial arrangement strategy, temperature rise data of the current vehicle external temperature sensing device under each driving condition is obtained. When the temperature rise data under each driving condition meets the corresponding temperature rise target, the initial arrangement strategy of the current vehicle external temperature sensing device is used as the final arrangement strategy of the current vehicle external temperature sensing device. This solves the problems of low accuracy and efficiency of temperature acquisition, large workload, and complex acquisition process in related technologies. By using simulation to guide the arrangement strategy of the external temperature sensing device during the development stage, the accuracy of temperature acquisition during actual vehicle road driving is ensured.

[0038] A third aspect of this application provides a vehicle, including: 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 arrangement method of the vehicle external temperature sensing device as described in the above embodiments.

[0039] A fourth aspect of this application provides a computer-readable storage medium storing computer instructions for causing the computer to perform the arrangement method of the vehicle external temperature sensing device as described in the above embodiments.

[0040] A fifth aspect of this application provides a computer program product, including a computer program that is executed to implement the arrangement method of the vehicle external temperature sensing device described in the above embodiments.

[0041] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0042] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0043] Figure 1 This is a flowchart illustrating a method for arranging a vehicle external temperature sensing device according to an embodiment of this application;

[0044] Figure 2 A block diagram illustrating an evaluation method for the arrangement of automotive external temperature sensing devices according to an embodiment of this application;

[0045] Figure 3 This is a flowchart illustrating the steps for achieving air conditioning performance according to one embodiment of this application.

[0046] Figure 4 This is an example diagram of the arrangement of a vehicle external temperature sensing device according to an embodiment of this application;

[0047] Figure 5 This is a structural schematic diagram of a vehicle according to an embodiment of this application. Detailed Implementation

[0048] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0049] The following description, with reference to the accompanying drawings, outlines a method, apparatus, vehicle, and storage medium for arranging vehicle external temperature sensors according to embodiments of this application. Addressing the problems of low accuracy and efficiency, high workload, and complex acquisition processes in related technologies mentioned in the background section, this application provides a method for arranging vehicle external temperature sensors. In this method, at least one driving condition of the current vehicle is determined. Based on each driving condition, the corresponding cooling unit heat dissipation and fan duty cycle are obtained to generate an initial arrangement strategy for the current vehicle's external temperature sensors. Temperature rise data of the current vehicle's external temperature sensors under each driving condition is obtained based on the initial arrangement strategy. When the temperature rise data under each driving condition meets the corresponding temperature rise target, the initial arrangement strategy of the current vehicle's external temperature sensors is used as the final arrangement strategy. This solves the problems of low accuracy and efficiency, high workload, and complex acquisition processes in related technologies. By using simulation to guide the arrangement strategy of the external temperature sensors during the development phase, the accuracy of temperature acquisition during actual vehicle road driving is ensured.

[0050] Specifically, Figure 1 This is a schematic flowchart illustrating a method for arranging a vehicle external temperature sensing device according to an embodiment of this application.

[0051] like Figure 1 As shown, the method for arranging the vehicle's external temperature sensing device includes the following steps:

[0052] In step S101, at least one driving condition of the current vehicle is determined.

[0053] Specifically, such as Figure 2 As shown, this application embodiment, through extensive simulation and historical test data comparison of multiple vehicle models, has formulated reasonable evaluation conditions, evaluation standards, and optimization schemes for the layout of external temperature sensing devices. By using simulation to guide the layout of external temperature sensing devices during the development stage, it mainly includes four aspects: air conditioning performance achievement, vehicle aesthetics, sensor reliability, and vehicle wading reliability. This ensures the accuracy of external temperature sensing device data collection during actual vehicle road driving, and while achieving air conditioning performance achievement, it also takes into account the vehicle aesthetics, sensor reliability, and vehicle wading reliability.

[0054] Specifically, such as Figure 3 As shown, the air conditioning performance achievement of this application embodiment mainly includes the following steps: defining evaluation conditions, sorting out simulation boundary conditions, defining evaluation standards, whole vehicle CFD (Computational Fluid Dynamics) simulation analysis, collecting the surface temperature of the thermal element of the external temperature sensing device, result evaluation and optimization, and output layout scheme.

[0055] The embodiments of this application first need to define evaluation conditions, that is, to determine at least one driving condition of the current vehicle. These mainly include condition one, condition two, condition three, and condition four. Under each driving condition, the current vehicle corresponds to different vehicle speeds, gradients, and ambient temperatures. For example, under condition one, the current vehicle's speed can be 0 km / h, the gradient can be 0%, and the ambient temperature can be 43℃; under condition two, the current vehicle's speed can be 15 km / h, the gradient can be 8%, and the ambient temperature can be 35℃; under condition three, the current vehicle's speed can be 25 km / h, the gradient can be 8%, and the ambient temperature can be 35℃; under condition four, the current vehicle's speed can be 40 km / h, the gradient can be 9%, and the ambient temperature can be 35℃. The main evaluation conditions and related parameters are shown in Table 1.

[0056] Table 1

[0057]

[0058]

[0059] In step S102, the heat dissipation of the cooling unit and the fan duty cycle corresponding to each driving condition are obtained, so as to generate the initial layout strategy of the current vehicle external temperature sensing device based on the heat dissipation of the cooling unit and the fan duty cycle corresponding to each driving condition.

[0060] Specifically, after defining the evaluation conditions, this application embodiment needs to sort out the simulation boundary conditions for each driving condition. This mainly includes the heat dissipation and fan duty cycle of all modules in the air intake channel of the front-end external temperature sensing device of the vehicle under the above evaluation conditions. In other words, it is necessary to obtain the heat dissipation of the cooling unit and the fan duty cycle corresponding to each driving condition. The heat dissipation is obtained based on the one-dimensional simulation of the functions of each module of the vehicle. The fan duty cycle needs to comprehensively consider the actual vehicle thermal management performance and NVH (Noise, Vibration, and Harshness) noise performance. Moreover, the lower the speed, the more severe the heat backflow on the surface of the external temperature sensing device.

[0061] Specifically, when the current vehicle is a pure electric vehicle, the front-end cooling unit (i.e., the front-end cooling module) includes a motor radiator and a condenser. The motor radiator cools the electric drive system, and the condenser cools the air conditioning and power battery. Under the four operating conditions mentioned above, the module heat dissipation and fan duty cycle of the front-end temperature sensing device can be as follows: Operating Condition 1: Motor radiator 0kW, condenser 10kW, fan duty cycle 45%; Operating Condition 2: Motor radiator 3.38kW, condenser 7.98kW, fan duty cycle 70%; Operating Condition 3: Motor radiator 3.69kW, condenser 8.23kW, fan duty cycle 70%; Operating Condition 4: Motor radiator 3.92kW, condenser 8.43kW, fan duty cycle 80%. This yields the cooling unit heat dissipation and fan duty cycle corresponding to each driving condition. Based on the cooling unit heat dissipation and fan duty cycle corresponding to each driving condition, an initial layout strategy for the current vehicle's external temperature sensing device is generated. The cooling unit heat dissipation and fan duty cycle corresponding to each driving condition are shown in Table 2.

[0062] Table 2

[0063]

[0064] In step S103, the temperature rise data of the current vehicle external temperature sensor under each driving condition is obtained based on the initial layout strategy, and it is determined whether the temperature rise data under each driving condition meets the temperature rise target corresponding to each driving condition. When the temperature rise data under each driving condition meets the corresponding temperature rise target, the initial layout strategy of the current vehicle external temperature sensor is used as the final layout strategy of the current vehicle external temperature sensor.

[0065] According to one embodiment of this application, obtaining temperature rise data of the current vehicle external temperature sensing device under each driving condition includes: obtaining the surface temperature of the thermistor in the current vehicle external temperature sensing device and the ambient temperature under each driving condition; simulating the surface temperature of the thermistor to obtain the average surface temperature of the thermistor; and calculating the temperature difference between the average surface temperature of the thermistor and the ambient temperature under each driving condition to obtain the temperature rise data of the current vehicle external temperature sensing device under each driving condition.

[0066] Specifically, in this application embodiment, the temperature rise data of the current vehicle external temperature sensing device under each driving condition is obtained based on the initial deployment strategy, and it is further determined whether the temperature rise data under each driving condition meets the temperature rise target corresponding to each driving condition.

[0067] Specifically, in this embodiment, after obtaining the initial layout strategy of the external temperature sensing device, the surface temperature of the thermistor unit of the external temperature sensing device is first acquired under each driving condition. During simulation, the thermistor element of the external temperature sensing device is one component, and the main body and fixed bracket of the external temperature sensing device are another component. After the simulation is completed, the average surface temperature of the thermistor element in the current vehicle external temperature sensing device and the ambient temperature under each driving condition are collected, and the difference between the thermistor element and the ambient temperature under the driving condition is calculated, i.e., the average surface temperature of the thermistor element minus the ambient temperature, to obtain the temperature rise data of the current vehicle external temperature sensing device under each driving condition. It is then determined whether the temperature rise data under each driving condition meets the temperature rise target corresponding to each driving condition. The temperature rise target corresponding to each driving condition is shown in Table 3. Specifically, the temperature rise target for condition 1 can be a temperature difference ≤ 5℃; the temperature rise target for condition 2 can be a temperature difference ≤ 2℃; the temperature rise target for condition 3 can be a temperature difference ≤ 1℃; and the temperature rise target for condition 4 can be a temperature difference ≤ 0.2℃.

[0068] Table 3

[0069]

[0070] Furthermore, if the temperature rise data under each driving condition meets the corresponding temperature rise target, that is, when the vehicle is currently in condition one, the corresponding temperature difference is ≤5℃, it means that the temperature rise data of condition one meets the corresponding temperature rise target; when the vehicle is currently in condition two, the corresponding temperature difference is ≤2℃, it means that the temperature rise data of condition two meets the corresponding temperature rise target; when the vehicle is currently in condition three, the corresponding temperature difference is ≤1℃, it means that the temperature rise data of condition three meets the corresponding temperature rise target; and when the vehicle is currently in condition four, the corresponding temperature difference is ≤0.2℃, it means that the temperature rise data of condition four meets the corresponding temperature rise target. Therefore, the current external temperature sensor arrangement strategy is output, that is, the initial arrangement strategy of the current vehicle external temperature sensor is used as the final arrangement strategy of the current vehicle external temperature sensor.

[0071] According to one embodiment of this application, after determining whether the temperature rise data under each driving condition meets the temperature rise target corresponding to each driving condition, the method further includes: if the temperature rise data under any driving condition does not meet the corresponding temperature rise target, the initial layout strategy is optimized until the temperature rise data under each driving condition meets the corresponding temperature rise target, and then the final layout strategy of the current vehicle external temperature sensing device is output.

[0072] Specifically, if the temperature rise data under any driving condition does not meet the corresponding temperature rise target, the initial layout strategy needs to be optimized. This means optimizing the placement of the external temperature sensor or optimizing the sealing between the air intake grille and the front bumper bracket, air deflector, etc., so that there is less backflow and lower air temperature in the area where the external temperature sensor is located. The optimized layout strategy is then used for the next round of whole vehicle CFD simulation analysis, and the process is continuously iterated until the temperature rise data under each driving condition meets the corresponding temperature rise target. At this point, the final layout strategy for the current vehicle's external temperature sensor is output.

[0073] According to one embodiment of this application, after obtaining the final layout strategy of the current vehicle external temperature sensing device, the method further includes: determining at least one layout position of the current vehicle external temperature sensing device based on the final layout strategy; generating the layout range and exposure criteria of the current vehicle external temperature sensing device and the layout position based on each layout position of the current vehicle external temperature sensing device; and generating an aesthetic evaluation of the current vehicle external temperature sensing device based on the layout range and exposure criteria of the current vehicle external temperature sensing device and the layout position.

[0074] According to one embodiment of this application, the connector harness of the current vehicle external temperature sensing device is arranged at an angle downward or horizontally.

[0075] Specifically, in addition to the overall evaluation process based on the above-mentioned air conditioning performance achievement, this application embodiment also takes into account the evaluation of vehicle aesthetics, sensor reliability, and vehicle wading reliability.

[0076] Specifically, the final arrangement strategy obtained based on this application requires an aesthetic evaluation of the current vehicle. For example, the evaluation can be performed using the front view of the entire vehicle to determine at least one arrangement position of the external temperature sensing device. Based on each arrangement position of the external temperature sensing device, the arrangement range and exposure criteria of the external temperature sensing device and its arrangement position are generated. For example, the arrangement range of the external temperature sensing device may include two arrangement ranges: the upper part of the vehicle's air intake grille or the upper part of the license plate and the lower part of the vehicle's air intake grille or the lower part of the license plate. Exposure criteria are proposed for different distances between the external temperature sensing device and the air intake grille in the above two arrangement ranges, and the surfaces of the exposed parts must be painted black.

[0077] For example, when the external temperature sensor is located on the upper part of the vehicle's air intake grille or license plate, the X-direction distance between the external temperature sensor and the air intake grille is D (mm). When D < 80, only the thermal element can be exposed; when 80 ≤ D < 110, the thermal element + 1 / 3 of its body and the mounting bracket can be exposed; when 110 ≤ D < 150, the thermal element + 2 / 3 of its body and the mounting bracket can be exposed; when D ≥ 150, the entire external temperature sensor can be exposed, excluding the wiring harness. When the external temperature sensor is located below the vehicle's air intake grille or license plate, the X-axis distance between the external temperature sensor and the air intake grille is D (mm). When D < 50, only the thermal element can be exposed; when 50 ≤ D < 80, the thermal element + 1 / 3 of its body and the mounting bracket can be exposed; when 80 ≤ D < 120, the thermal element + 2 / 3 of its body and the mounting bracket can be exposed; when D ≥ 120, the entire external temperature sensor can be exposed, excluding the wiring harness. Specific solutions are shown in Table 4.

[0078] Table 4

[0079]

[0080] Furthermore, based on the inherent reliability of the sensor, this embodiment of the application requires the connector harness end of the external temperature sensing device to be tilted downwards or arranged horizontally (parallel to the Y direction) to avoid the risk of short circuit failure due to prolonged water accumulation in the connector. In addition, external temperature sensing devices are mainly divided into waterproof and non-waterproof types. Based on the reliability of vehicle wading, this embodiment of the application requires that non-waterproof external temperature sensing devices be installed at a wading depth of more than 100mm from the vehicle to avoid the external temperature sensing device from getting wet and thus affecting the monitoring accuracy of the external temperature sensing device.

[0081] It should be noted that the above-described arrangement of the vehicle's external temperature sensing devices is merely exemplary. The evaluation conditions are not limited to these four conditions; for example, condition five could be included: vehicle speed 10 km / h, gradient 8%, ambient temperature 35°C, etc. In the simulation boundary conditions, the front-end cooling unit includes all modules within the air intake channel of the vehicle's front-end external temperature sensing devices, but is not limited to motor radiators and condensers. It could also include low-temperature radiators, high-temperature radiators, oil coolers, etc. When setting the temperature rise target evaluation criteria, it is not limited to the temperature rise targets corresponding to the current four conditions; it can also include temperature rise targets for more conditions, such as condition five (vehicle speed...). The target temperature rise for a vehicle traveling at 10 km / h with an 8% gradient and an ambient temperature of 35°C is ≤4°C. When calculating the temperature difference between the average surface temperature of the thermal element and the ambient temperature, the calculation should not be limited to the average surface temperature of the thermal element of the external temperature sensing device, but may also include the highest and lowest temperatures. The layout optimization strategy is not limited to the optimization of the seals between the air intake grille and the front bumper bracket and the air deflector, but may also depend on the actual vehicle structural components. It should include all gap seals in the air intake channel of the front external temperature sensing device, such as the seal between the air deflector and the active grille frame. The evaluation of the vehicle's aesthetics can be conducted not only from the front view, but also from other directions such as 45° in front of the vehicle.

[0082] In summary, this application evaluates the vehicle based on four aspects: air conditioning performance, vehicle aesthetics, sensor reliability, and vehicle wading reliability. Through extensive simulation and historical test data comparison across multiple vehicle models, reasonable evaluation conditions, standards, and optimization schemes for the placement of external temperature sensors were developed. By using simulation to guide the placement of external temperature sensors during the development phase, the accuracy of external temperature sensor data collection during actual road driving is ensured. This approach also considers vehicle aesthetics, sensor reliability, and vehicle wading reliability, thus solving the problems of high workload, time consumption, high cost, and the requirement for relatively perfect vehicle conditions (hardware and software) in related technologies that rely on experimental calibration and strategy correction of external temperature values.

[0083] According to the vehicle external temperature sensing device arrangement method of this application embodiment, at least one driving condition of the current vehicle is determined. Based on each driving condition, the corresponding cooling unit heat dissipation and fan duty cycle are obtained to generate an initial arrangement strategy for the current vehicle external temperature sensing device. Based on the initial arrangement strategy, temperature rise data of the current vehicle external temperature sensing device under each driving condition is obtained. When the temperature rise data under each driving condition meets the corresponding temperature rise target, the initial arrangement strategy of the current vehicle external temperature sensing device is used as the final arrangement strategy of the current vehicle external temperature sensing device. This solves the problems of low accuracy and efficiency of temperature acquisition, large workload, and complex acquisition process in related technologies. By using simulation to guide the arrangement strategy of the external temperature sensing device during the development stage, the accuracy of temperature acquisition during actual vehicle road driving is guaranteed.

[0084] Next, the arrangement of the vehicle external temperature sensing device according to the embodiments of this application is described with reference to the accompanying drawings.

[0085] Figure 4 This is a block diagram of the arrangement of a vehicle external temperature sensing device according to an embodiment of this application.

[0086] like Figure 4 As shown, the vehicle external temperature sensing device arrangement device 10 includes: a determination module 100, a generation module 200, and an arrangement module 300.

[0087] The determining module 100 is used to determine at least one driving condition of the current vehicle.

[0088] The generation module 200 is used to obtain the heat dissipation of the cooling unit and the fan duty cycle corresponding to each driving condition, so as to generate the initial layout strategy of the current vehicle external temperature sensing device based on the heat dissipation of the cooling unit and the fan duty cycle corresponding to each driving condition.

[0089] The arrangement module 300 is used to obtain the temperature rise data of the current vehicle external temperature sensing device under each driving condition based on the initial arrangement strategy, and to determine whether the temperature rise data under each driving condition meets the temperature rise target corresponding to each driving condition. When the temperature rise data under each driving condition meets the corresponding temperature rise target, the initial arrangement strategy of the current vehicle external temperature sensing device is used as the final arrangement strategy of the current vehicle external temperature sensing device.

[0090] According to one embodiment of this application, the arrangement module 300 includes:

[0091] The acquisition unit is used to acquire the surface temperature of the thermistor in the vehicle's external temperature sensing device and the ambient temperature under each driving condition.

[0092] The simulation unit is used to simulate the surface temperature of the thermistor and obtain the average surface temperature of the thermistor.

[0093] The calculation unit is used to calculate the temperature difference between the average surface temperature of the thermal element and the ambient temperature under each driving condition, so as to obtain the temperature rise data of the current vehicle external temperature sensing device under each driving condition.

[0094] According to one embodiment of this application, after determining whether the temperature rise data under each driving condition meets the temperature rise target corresponding to each driving condition, the arrangement module 300 further includes:

[0095] The optimization unit is used to optimize the initial layout strategy if the temperature rise data under any driving condition does not meet the corresponding temperature rise target, until the temperature rise data under each driving condition meets the corresponding temperature rise target, and then outputs the final layout strategy of the current vehicle external temperature sensing device.

[0096] According to one embodiment of this application, after obtaining the final layout strategy of the current vehicle external temperature sensing device, the layout module 300 further includes:

[0097] The determining unit is used to determine at least one placement location of the current vehicle external temperature sensing device based on the final placement strategy.

[0098] The first generation unit is used to generate the arrangement range and exposed standard of the current vehicle external temperature sensing device and its arrangement position based on each arrangement position of the current vehicle external temperature sensing device.

[0099] The second generation unit is used to generate an aesthetic evaluation of the current vehicle's external temperature sensing device based on the current vehicle's external temperature sensing device's placement range and exposed standards.

[0100] According to one embodiment of this application, the connector harness of the current vehicle external temperature sensing device is arranged at an angle downward or horizontally.

[0101] According to the vehicle external temperature sensing device arrangement apparatus of this application embodiment, at least one driving condition of the current vehicle is determined. Based on each driving condition, the corresponding cooling unit heat dissipation and fan duty cycle are obtained to generate an initial arrangement strategy for the current vehicle external temperature sensing device. Based on the initial arrangement strategy, temperature rise data of the current vehicle external temperature sensing device under each driving condition is obtained. When the temperature rise data under each driving condition meets the corresponding temperature rise target, the initial arrangement strategy of the current vehicle external temperature sensing device is used as the final arrangement strategy of the current vehicle external temperature sensing device. This solves the problems of low accuracy and efficiency of temperature acquisition, large workload, and complex acquisition process in related technologies. By using simulation to guide the arrangement strategy of the external temperature sensing device during the development stage, the accuracy of temperature acquisition during actual vehicle road driving is ensured.

[0102] Figure 5 A schematic diagram of the structure of a vehicle provided in an embodiment of this application. The vehicle may include:

[0103] The memory 501, the processor 502, and the computer program stored on the memory 501 and capable of running on the processor 502.

[0104] When the processor 502 executes the program, it implements the method for arranging the vehicle external temperature sensing device provided in the above embodiments.

[0105] Furthermore, the vehicle also includes:

[0106] Communication interface 503 is used for communication between memory 501 and processor 502.

[0107] The memory 501 is used to store computer programs that can run on the processor 502.

[0108] The memory 501 may include high-speed RAM memory, and may also include non-volatile memory, such as at least one disk storage device.

[0109] If the memory 501, processor 502, and communication interface 503 are implemented independently, then the communication interface 503, memory 501, and processor 502 can be interconnected via a bus to complete communication between them. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. The bus can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 5 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0110] Optionally, in a specific implementation, if the memory 501, processor 502, and communication interface 503 are integrated on a single chip, then the memory 501, processor 502, and communication interface 503 can communicate with each other through an internal interface.

[0111] Processor 502 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of this application.

[0112] This embodiment also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described method for arranging the vehicle external temperature sensing device.

[0113] This embodiment also provides a computer program product, including a computer program that is executed to implement the arrangement method of the vehicle external temperature sensing device described in the above embodiment.

[0114] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0115] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0116] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more N executable instructions for implementing custom logic functions or processes, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of this application pertain.

[0117] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Furthermore, computer-readable media can even be paper or other suitable media on which programs can be printed, because programs can be obtained electronically, for example, by optically scanning the paper or other media, followed by editing, interpreting, or otherwise processing as necessary, and then stored in computer memory.

[0118] It should be understood that the various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, the N steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0119] Those skilled in the art will understand that all or part of the steps of the methods described in the above embodiments can be implemented by a program instructing related hardware, and the program can be stored in a computer-readable storage medium. When executed, the program includes one or a combination of the steps of the method embodiments.

[0120] Furthermore, the functional units in the various embodiments of this application can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0121] The storage medium mentioned above can be a read-only memory, a disk, or an optical disk, etc. Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. A method for arranging a vehicle external temperature sensing device, characterized in that, Includes the following steps: Determine at least one driving condition of the current vehicle; The initial layout strategy of the current vehicle external temperature sensing device is generated based on the cooling unit heat dissipation and fan duty cycle corresponding to each driving condition. Based on the initial layout strategy, the temperature rise data of the current vehicle external temperature sensor under each driving condition is obtained, and it is determined whether the temperature rise data under each driving condition meets the temperature rise target corresponding to each driving condition. When the temperature rise data under each driving condition meets the corresponding temperature rise target, the initial layout strategy of the current vehicle external temperature sensor is used as the final layout strategy of the current vehicle external temperature sensor. The acquisition of temperature rise data of the current vehicle external temperature sensing device under each driving condition includes: The surface temperature of the thermistor in the vehicle's external temperature sensing device and the ambient temperature under each driving condition are obtained. The surface temperature of the thermistor was simulated to obtain the average surface temperature of the thermistor. The temperature difference between the average surface temperature of the thermal element and the ambient temperature under each driving condition is calculated to obtain the temperature rise data of the current vehicle external temperature sensing device under each driving condition.

2. The method according to claim 1, characterized in that, After determining whether the temperature rise data under each driving condition meets the temperature rise target corresponding to each driving condition, the method further includes: If the temperature rise data under any driving condition does not meet the corresponding temperature rise target, the initial layout strategy is optimized until the temperature rise data under each driving condition meets the corresponding temperature rise target, and then the final layout strategy of the current vehicle external temperature sensing device is output.

3. The method according to claim 1, characterized in that, After obtaining the final deployment strategy for the current vehicle external temperature sensing device, the following is also included: Based on the final deployment strategy, at least one deployment location of the current vehicle external temperature sensing device is determined; Based on each placement location of the current vehicle external temperature sensor, the placement range and exposure standard of the current vehicle external temperature sensor and the placement location are generated. An aesthetic evaluation of the current vehicle external temperature sensor is generated based on the arrangement range between the current vehicle external temperature sensor and the location and the exposure standard.

4. The method according to claim 1, characterized in that, The connector harness of the current vehicle external temperature sensing device is arranged at an angle downwards or horizontally.

5. A device for arranging a vehicle external temperature sensing device, characterized in that, include: The determination module is used to determine at least one driving condition of the current vehicle; The generation module is used to obtain the heat dissipation of the cooling unit and the fan duty cycle corresponding to each driving condition, so as to generate the initial layout strategy of the current vehicle external temperature sensing device based on the heat dissipation of the cooling unit and the fan duty cycle corresponding to each driving condition. The arrangement module is used to obtain the temperature rise data of the current vehicle external temperature sensing device under each driving condition based on the initial arrangement strategy, and to determine whether the temperature rise data under each driving condition meets the temperature rise target corresponding to each driving condition. When the temperature rise data under each driving condition meets the corresponding temperature rise target, the initial arrangement strategy of the current vehicle external temperature sensing device is used as the final arrangement strategy of the current vehicle external temperature sensing device. include: The acquisition unit is used to acquire the surface temperature of the thermistor in the current vehicle external temperature sensing device and the ambient temperature under each driving condition; The simulation unit is used to simulate the surface temperature of the thermistor and obtain the average surface temperature of the thermistor. The calculation unit is used to calculate the temperature difference between the average surface temperature of the thermal element and the ambient temperature under each driving condition, so as to obtain the temperature rise data of the current vehicle external temperature sensing device under each driving condition.

6. The apparatus according to claim 5, characterized in that, After determining whether the temperature rise data under each driving condition meets the temperature rise target corresponding to each driving condition, the arrangement module further includes: An optimization unit is used to optimize the initial layout strategy if the temperature rise data under any driving condition does not meet the corresponding temperature rise target, until the temperature rise data under each driving condition meets the corresponding temperature rise target, and then output the final layout strategy of the current vehicle external temperature sensing device.

7. A vehicle, characterized in that, include: A memory, a processor, and a computer program stored in the memory and executable on the processor, the processor executing the program to implement the arrangement method of the vehicle external temperature sensing device as described in any one of claims 1-4.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that, The program is executed by the processor to implement the method of arranging the vehicle external temperature sensing device as described in any one of claims 1-4.

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