Vehicle-mounted rear armrest control screen charging heat dissipation control method and device and storage medium

Abstract

The invention discloses a vehicle-mounted rear armrest control screen charging heat dissipation control method which comprises the following steps: after a control screen charging process is started, acquiring a temperature signal of a control screen and a real-time vehicle speed signal of a vehicle; and based on the temperature signal and the real-time vehicle speed signal, cooperatively adjusting a charging strategy and a fan heat dissipation strategy. The invention further discloses a vehicle-mounted rear armrest control screen charging device. Through cooperative linkage of a charging strategy and a fan heat dissipation strategy, efficient heat dissipation in the control screen charging process is achieved while efficient and stable charging and quiet environment are considered, the service life of equipment is effectively prolonged, and the user experience is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and in particular to a method, device, and storage medium for controlling the charging and heat dissipation of a vehicle rear armrest control panel. Background Technology

[0002] Rear-seat armrest control screens are increasingly becoming a core feature for enhancing the luxury and technological feel of the cabin. To pursue ease of operation and efficiency, movable rear-seat armrest control screens are becoming a growing trend. These screens typically come with a charging dock; however, in current designs, the control screen and dock are usually located in the center armrest area, with the dock only providing structural support and electrical connection, offering limited functionality. The rear-seat armrest control screen itself generates heat, which, combined with the heat generated during charging, and the limited internal space of the dock hinders heat dissipation, easily leading to heat buildup. This severely impacts charging efficiency, screen lifespan, and system stability.

[0003] Based on this, the present invention provides a charging and heat dissipation control method, device and storage medium for a vehicle rear armrest control screen to solve the problems mentioned above. Summary of the Invention

[0004] The purpose of this invention is to provide a charging and heat dissipation control method, device, and storage medium for a vehicle rear armrest control screen, thereby achieving efficient heat dissipation of the control screen.

[0005] To address the aforementioned technical problems, this invention provides a method for controlling the charging and heat dissipation of a vehicle rear armrest control screen, comprising the following steps: After the charging process on the control panel is started, the temperature signal of the control panel and the real-time vehicle speed signal are acquired. Based on the temperature signal and real-time vehicle speed signal, the charging strategy and fan cooling strategy are adjusted in a coordinated manner.

[0006] Furthermore, the startup logic of the control panel charging process includes the following steps: After the vehicle is started and woken up, it continuously checks whether the control panel has established a valid electrical connection with the relevant charging device. If a valid electrical connection has been established with the control panel, further check the power status of the control panel. If it is not fully charged, start the charging process.

[0007] Furthermore, the adjustment steps of the charging strategy include: Determine whether the temperature signal meets the preset temperature trigger condition; if it does, adjust the charging power accordingly. The preset temperature triggering conditions include a temperature exceeding a first temperature threshold or falling below a second temperature threshold, and the corresponding duration reaching a corresponding preset duration.

[0008] Furthermore, the value of the first temperature threshold is greater than the value of the second temperature threshold; When the temperature exceeds the first temperature threshold and the duration reaches the first preset duration, reduce the charging power; When the temperature remains below the second temperature threshold for an extended period of time, the charging power is increased.

[0009] Furthermore, the adjustment steps for the fan cooling strategy include: Adjust the preset fan start conditions according to the real-time vehicle speed signal, and determine whether the temperature signal meets the adjusted fan start conditions. If it does, start the cooling fan accordingly. The preset fan start-up conditions include a temperature exceeding a third temperature threshold and a corresponding duration reaching a preset duration.

[0010] Furthermore, the adjustment steps for the preset fan start-up conditions include: When the real-time vehicle speed is greater than the preset vehicle speed threshold, the third temperature threshold is kept unchanged, and the corresponding preset duration is reduced. When the real-time vehicle speed is less than the preset vehicle speed threshold, the value of the third temperature threshold is increased, while the preset duration remains unchanged.

[0011] Furthermore, the adjustment steps for the fan cooling strategy also include: After the cooling fan starts, the fan speed is adjusted according to the preset vehicle speed range where the real-time vehicle speed signal is located. The speed is positively correlated with the real-time vehicle speed.

[0012] The present invention also provides a vehicle rear armrest control screen charging device for implementing the above-mentioned vehicle rear armrest control screen charging heat dissipation control method, including a base housing, a conductive charging contact module, a control circuit board, a cooling fan and an air duct; The conductive charging contact module is disposed on the panel of the base housing and is used to establish a stable electrical connection with the control panel to realize charging current transmission and signal communication. The cooling fan is installed in the base housing to generate cooling airflow; The air duct is located between the panel of the base housing and the cooling fan, and is used to guide the cooling airflow generated by the cooling fan to move along a specified path in order to cool down the charging area of ​​the control screen. The control circuit board is located in the base housing and is used to adjust the charging strategy and the fan cooling strategy.

[0013] Furthermore, the control circuit board includes an MCU main control chip, a charging management chip, and a fan drive chip; The MCU main control chip is connected to the vehicle power supply and communicates with the vehicle's infotainment system. The MCU main control chip is also electrically connected to a temperature detection unit for detecting the temperature of the charging area of ​​the control screen. The charging management chip is electrically connected to the MCU main control chip and the conductive charging contact module. It is used to respond to the instructions of the MCU main control chip to increase, decrease or maintain the charging power, and to transmit the charging status signal to the MCU main control chip in real time. The fan driver chip is electrically connected to the MCU main control chip and the cooling fan, and is used to receive the PWM signal output by the MCU main control chip to control the start and stop of the cooling fan and the switching of the speed level. And / or; also includes a DC-DC converter unit and an LDO circuit integrated on the control circuit board or separately mounted in the base housing; The MCU main control chip is electrically connected to the vehicle power supply through the LDO circuit and the DC-DC conversion unit in sequence. Both the fan drive chip and the charging management chip are electrically connected to the DC-DC conversion unit.

[0014] The present invention also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps of the method described above.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: This invention achieves efficient heat dissipation of the control screen during the charging process by synergistically linking charging and fan cooling strategies, while ensuring efficient and stable charging and a quiet environment. This effectively improves the lifespan of the device and the user experience. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the charging strategy adjustment process in Embodiment 1 of the present invention; Figure 2 This is a schematic diagram illustrating a process for adjusting a fan cooling strategy according to an embodiment of the present invention; Figure 3 This is an exploded view of the overall structure of the vehicle-mounted rear armrest control screen charging device in Embodiment 2 of the present invention; Figure 4 This is a schematic diagram illustrating the operating principle of the air duct and cooling fan in Embodiment 2 of the present invention. Figure 5 This is a schematic diagram of the distribution of air ducts on the panel in Embodiment 2 of the present invention; Figure 6 This is a block diagram of the control circuit of the control circuit board in Embodiment 2 of the present invention. Detailed Implementation

[0017] The charging and heat dissipation control method, device, and storage medium for the vehicle rear armrest control screen of the present invention will be described in more detail below with reference to the schematic diagrams, which illustrate preferred embodiments of the present invention. It should be understood that those skilled in the art can modify the present invention described herein while still achieving the advantageous effects of the present invention. Therefore, the following description should be understood as being of general knowledge to those skilled in the art and is not intended to limit the present invention.

[0018] The invention is described more specifically by way of example in the following paragraphs with reference to the accompanying drawings. The advantages and features of the invention will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the invention.

[0019] Example 1 This embodiment provides a method for controlling the charging and heat dissipation of a vehicle rear armrest control screen, including the following steps: S1. After the charging process on the control panel is started, the temperature signal of the control panel and the real-time vehicle speed signal are obtained. S2. Based on the temperature signal and real-time vehicle speed signal, adjust the charging strategy and fan cooling strategy in a coordinated manner.

[0020] Specifically, in this embodiment, the adjustment of the charging strategy is as follows: Figure 1 As shown: When the vehicle is started and woken up, it is determined whether the control screen is correctly placed and connected (i.e., whether a valid electrical connection is established with the relevant charging device). If a valid electrical connection is not established, the charging device is kept in standby mode and the system is continuously checked. Otherwise, the control screen is further checked to see if it is fully charged. If it is in a depleted state, the base will start charging the control screen.

[0021] During the charging process, the temperature of the control screen is repeatedly checked to see if it is greater than the set first temperature threshold T1 and if the duration is greater than the first preset duration t1 set at temperature T1. Its function is to distinguish between short-term, transient temperature fluctuations (such as instantaneous temperature rise caused by direct sunlight) and continuous temperature rise caused by charging heat.

[0022] The initial default charging power is high power P0. If it is determined that the armrest control screen meets the condition that its temperature is greater than T1 and the duration is greater than t1, the charging power of the control screen is reduced. For example, if the power is halved, the charging power is changed from high power P0 to low power P1; otherwise, the charging power is still set to high power P0.

[0023] Furthermore, if the charging power is in a low power P1 state, it is determined whether the temperature of the control screen is less than the set second temperature threshold T2 and whether the duration is greater than the second preset duration t2 set at temperature T2. Its function is to distinguish between short-term, transient cooling fluctuations (such as periodic air sweeping of air conditioning vents) and continuous cooling states caused by stable low power consumption.

[0024] If the control panel meets the condition that its temperature is less than T2 and the duration is greater than t2, the charging power provided to the rear armrest control panel will be increased, such as changing the charging power from low power P1 to high power P0; otherwise, the charging power will remain at low power P1.

[0025] In the above implementation process, the first temperature threshold and the first temperature threshold set by the control panel can be defined as the highest temperature threshold for high-power charging and the temperature threshold for acceptable high-power charging, respectively. The value of the first temperature threshold is greater than the value of the second temperature threshold, that is, T1>T2, and the set duration is not limited, that is, t1>t2, or t1<t2, or t1=t2.

[0026] Furthermore, in this embodiment, the fan cooling strategy is adjusted as follows: Figure 2 As shown: When the vehicle is started and woken up, it is determined whether the control panel is correctly placed and connected (i.e., whether a valid electrical connection is established with the relevant charging device). If a valid electrical connection is not established, the charging device and the fan are kept in standby mode, and the process is continuously checked. Otherwise, the control panel is checked to see if it is fully charged. If it is in a depleted state, the control panel is charged. At this time, the fan remains in standby (off) mode. Its purpose is to avoid starting the fan during the initial charging and when the temperature is not high, thus avoiding unnecessary noise and energy consumption.

[0027] During charging, the system continuously monitors the vehicle's speed signal, the temperature of the charging interface area on the control panel, and the duration of these monitoring. First, it determines whether the control panel temperature exceeds the set third temperature threshold T3, and whether the vehicle speed exceeds the preset speed threshold v2 set on the control panel for adjusting fan standby fluctuations. When the control panel temperature is determined to be below T3, the fan enters standby mode.

[0028] When the rear armrest control panel temperature is greater than T3 and the vehicle speed is greater than v2, the fan's operating duration will be less than the third preset duration t3 set at temperature T3. For example, the fan will activate when the temperature is T3 and the duration is t3-Δt; otherwise, the fan will remain in standby mode. This is to appropriately reduce the waiting time for the fan to activate at high vehicle speeds. When the control panel temperature is greater than T3 and the vehicle speed is less than v2, the fan's operating duration will be greater than the basic duration t3 set at temperature T3. For example, the fan will activate when the temperature is T3+ΔT and the continuous waiting time is t3; otherwise, the fan will remain in standby mode. This is to appropriately increase the temperature threshold for the fan to activate at low vehicle speeds. In other words, when the real-time vehicle speed is greater than the preset vehicle speed threshold, the third temperature threshold remains unchanged, and the corresponding preset duration is reduced; when the real-time vehicle speed is less than the preset vehicle speed threshold, the third temperature threshold value is increased, while the preset duration remains unchanged.

[0029] Furthermore, the adjustment of the fan cooling strategy also includes: after the cooling fan starts, the fan speed level is adjusted according to the preset vehicle speed range where the real-time vehicle speed signal is located. The speed level is positively correlated with the real-time vehicle speed, that is, when the vehicle is at a low speed, the cooling fan is controlled at a low speed; when the vehicle is at a high speed, the cooling fan is controlled at a high speed.

[0030] If the fan is set to speed level four, when the real-time vehicle speed is greater than the preset high-speed threshold V1, the vehicle is determined to be in a high-speed driving state, and the fan operates at the maximum speed level four. Its function is to increase the fan speed at high speeds to achieve the best heat dissipation capacity while using the greater background wind noise to mask the noise generated by the fan. When the real-time vehicle speed is between V1 and V2, the vehicle speed is determined to be in a medium-high speed driving state, and the fan operates at speed level three. Its function is to provide slightly stronger heat dissipation capacity by utilizing the greater background wind noise. When the real-time vehicle speed is less than the preset low-speed threshold V3, the vehicle is determined to be in a low-speed driving state, and the fan is set to the minimum speed level one. Its function is to provide basic heat dissipation while maximizing cabin quietness in noise-sensitive conditions such as low speed or stationary conditions. When the real-time vehicle speed is between V3 and V2, the vehicle is determined to be in a low-to-medium speed driving state, and the fan is set to the lower speed level two. Its function is to balance the heat dissipation demand with the gradually increasing ambient wind noise when driving at low-to-medium speeds.

[0031] In the above implementation process, the value of the third temperature threshold is less than the value of the second temperature threshold, that is, T3 < T2, and T3 + ΔT < T2; while the third preset market t3 and t3 - Δt are not restricted and can be adjusted according to the actual situation.

[0032] Furthermore, the fan speed can be set to multiple speed levels for control. The description provides a reference value of four speed levels, but it is not limited to four speed levels. The speed setting can be the duty cycle of the maximum fan speed.

[0033] In summary, the vehicle rear armrest control screen charging and heat dissipation control method provided in this embodiment achieves multiple core beneficial effects through the coordinated linkage of charging strategy and fan cooling strategy: (1) Precise matching of charging and heat dissipation, taking into account both efficiency and stability: In the state of low power, the high-power fast charging mode is activated by default to quickly replenish the power to meet the user's emergency needs; when the temperature of the control screen reaches the preset threshold, the charging strategy balances the heat dissipation pressure by dynamically reducing the power rather than interrupting the charging. At the same time, the fan heat dissipation strategy responds synchronously, and the start time and speed are precisely adjusted according to the temperature and vehicle speed. This avoids the risk of overheating caused by high-power charging and eliminates the problem of sacrificing charging efficiency for heat dissipation alone, ensuring that the charging process is continuous, stable and efficient, and achieving a virtuous cycle of "fast charging without lag and heat dissipation without delay".

[0034] (2) Scenario-based adaptation and optimization to enhance the user experience in the vehicle: In response to the differences in noise sensitivity caused by changes in vehicle speed in the vehicle scenario, the fan cooling strategy dynamically adjusts the speed: a low speed is used when the vehicle is at low speed or stationary to minimize operating noise and ensure cabin quietness; when driving at high speed, the speed is increased to enhance heat dissipation, and the background wind noise of the vehicle is used to mask the fan noise to avoid additional interference. At the same time, the dual judgment logic of "temperature + duration" effectively filters transient temperature change interference such as direct sunlight and air conditioning sweeping, prevents frequent switching of charging power and fan status, and makes the charging process smooth and stable without abrupt fluctuations or sudden noise changes, which is in line with the usage habits and comfort needs in the vehicle scenario.

[0035] (3) Multi-dimensional protection extends equipment life and ensures long-term reliability. High temperature is a key cause of aging of electronic equipment components and degradation of battery performance. This method monitors the temperature of the control panel in real time and combines it with efficient fan cooling to quickly dissipate the charging heat, so as to keep the operating temperature of the equipment stable within a safe range and avoid irreversible damage to core chips, batteries and other components caused by continuous high temperature. At the same time, the dynamic power adjustment in the charging strategy avoids high power overload impact and prevents component loss caused by voltage instability. The dual protection significantly slows down the aging speed of the equipment and extends the service life and long-term operational stability of the control panel.

[0036] (4) Energy consumption optimization is more economical and meets the needs of vehicle power supply utilization: When no effective electrical connection is established, it maintains standby status. When the temperature is low in the early stage of charging, the fan is kept off and only starts when the heat dissipation needs are clear. At the same time, the dynamic matching of fan speed and charging power ensures that energy consumption is accurately matched with actual needs. It does not waste vehicle power supply for redundant heat dissipation, nor does it affect charging efficiency due to unreasonable energy distribution. It achieves the energy consumption optimization goal of "high efficiency and low redundancy".

[0037] Example 2 like Figure 3 As shown, this embodiment provides a vehicle rear armrest control screen charging device to implement the vehicle rear armrest control screen charging and heat dissipation control method in Embodiment 1, including a base housing 1, a conductive charging contact module 2, a control circuit board and a cooling fan 3.

[0038] Specifically, the base housing 1 includes a base front housing 11, a base rear housing 12, a panel 13, and a fixing clip 14. The panel 13 is assembled between the base front housing 11 and the base rear housing 12 and is used to support the conductive charging contact module 2 and the control circuit board.

[0039] The conductive charging contact module 2 is disposed on the panel 13 and is used to establish a stable electrical connection with the control screen to realize charging current transmission and signal communication; the cooling fan 3 is installed in the base housing 1 to generate cooling airflow; referring to reference Figure 4 An air duct 5 is provided between the panel 13 and the cooling fan 3. The air duct 5 is installed on the panel 13 by the fixing clip 14. The airflow generated by the cooling fan 3 blows towards the control screen through the air inlet of the air duct 5 to cool it down, and is discharged from its air outlet through the groove on the air duct, ensuring that the airflow flows in the device along a specific path and does not accumulate.

[0040] The control circuit board is housed in the base housing 1, as shown in the reference. Figure 6 The control circuit board includes an MCU main control chip, a charging management chip, and a fan drive chip. The MCU main control chip is connected to the vehicle power supply and communicates with the vehicle's infotainment system (e.g., via CAN communication). The MCU main control chip is also electrically connected to a temperature detection unit for detecting the temperature of the charging area on the control screen. The charging management chip is electrically connected to the MCU main control chip and the conductive charging contact module 2. It responds to the instructions of the MCU main control chip to increase, decrease, or maintain the charging power, and transmits charging status signals to the MCU main control chip in real time. The fan drive chip is electrically connected to the MCU main control chip and the cooling fan 3. It receives the PWM signal output by the MCU main control chip and controls the start / stop and speed gear switching of the cooling fan 3.

[0041] In this embodiment, when the control screen is correctly placed on the base panel 13, the conductive charging contact module 2 and the corresponding contact of the control screen are precisely aligned to establish an effective electrical connection. At this time, the MCU main control chip obtains vehicle speed signals through the vehicle communication link, and at the same time collects the initial temperature of the charging area of ​​the control screen through the temperature detection unit and receives the remaining power signal of the control screen fed back by the charging management chip.

[0042] If the control panel is detected to be in a low-power state, the MCU main control chip sends a high-power charging command to the charging management chip. The charging management chip then outputs a preset high-power P0 through the conductive charging contact module 2 to start the fast charging mode for the control panel. At the same time, the MCU main control chip continuously receives real-time temperature data from the temperature detection unit and status signals such as charging current and voltage transmitted by the charging management chip, dynamically monitors the charging process, and controls the charging management chip to adjust the charging power.

[0043] At the same time, the MCU main control chip combines the real-time vehicle speed signal obtained from the vehicle's infotainment system and controls the start, stop and speed of the cooling fan 3 through the fan drive chip, forming a "charging-cooling" linkage closed loop in conjunction with power adjustment.

[0044] Once charging is complete, the charging management chip detects that the control panel is fully charged and immediately sends a full charge signal to the MCU main control chip. The MCU main control chip then instructs the charging management chip to stop outputting charging power and simultaneously controls the cooling fan 4 to shut down after a delay. Finally, the charging device returns to standby mode, waiting for the next charging trigger.

[0045] In the above embodiments, preferably, the temperature detection unit uses an NTC temperature sensor, which has the characteristics of high sensitivity, fast response speed and high temperature measurement accuracy. It can accurately capture the real-time temperature changes of the charging area of ​​the control screen and provide reliable data support for the strategy adjustment of the MCU main control chip.

[0046] Furthermore, the cooling fan 4 is a centrifugal fan, which has the characteristics of high air pressure and concentrated airflow, and is suitable for the heat dissipation needs of the narrow installation space of the vehicle base.

[0047] Combined with reference Figure 5 An elastic sleeve 6 is provided at the air inlet of the air duct 5 to fill the assembly gap between the fan and the air duct, forming a sealed airflow channel to prevent leakage of heat dissipation airflow and thus reduce heat dissipation efficiency.

[0048] In one specific embodiment, the vehicle rear armrest control screen charging device may further include a power supply module, which includes a DC-DC converter and an LDO circuit. These components can be integrated onto the control circuit board or independently mounted within the base housing 1, adapting to different installation spaces and circuit layout requirements. Their electrical connections are specifically as follows: The vehicle power supply is electrically connected to the MCU main control chip 31 via a DC-DC conversion unit and an LDO circuit. The fan drive chip and charging management chip are directly connected to the DC-DC conversion unit. The core function of the DC-DC conversion unit is to stably convert the vehicle's 12V power supply to a 5V adaptive voltage. This provides direct power to the fan drive chip and charging management chip, meeting their operating voltage requirements. Furthermore, the LDO circuit further stabilizes the voltage, outputting a more accurate and less ripple-prone power supply voltage to the MCU main control chip. This ensures the stable operation of precision components such as the MCU main control chip and the NTC temperature sensor, preventing voltage fluctuations from interfering with signal detection and strategy control, and guaranteeing the reliability and stability of the entire charging device's power supply.

[0049] In summary, the in-vehicle rear armrest control screen charging device provided in this embodiment achieves multifaceted optimization of the in-vehicle charging experience through the deep integration of structured design and intelligent control: In terms of structural adaptability and heat dissipation efficiency, the base shell, through the precise assembly of the front shell, rear shell and panel, and the stable positioning of the air duct by the fixing clip, creates a compact and regular internal space, which is suitable for the installation requirements of the rear armrest of the vehicle; the cooling fan adopts a centrifugal fan with high air pressure and concentrated airflow, and is tightly fitted to the air duct inlet by the elastic sleeve, which not only prevents airflow leakage and ensures that the cooling airflow acts on the charging area of ​​the control screen in a designated path, but also effectively buffers vibration and reduces resonance noise, thus balancing heat dissipation effect and cabin quietness.

[0050] In terms of power supply reliability, the power supply module achieves stable conversion from the vehicle's 12V power supply to the 5V adaptive voltage through the combination of DC-DC conversion unit and LDO circuit. It also provides high-precision regulated power supply for precision components such as MCU main control chip, avoiding interference from voltage fluctuations on signal detection and strategy control. At the same time, it provides stable power support for charging management chip and fan drive chip, ensuring the stability and durability of the entire device in long-term operation.

[0051] In terms of intelligent control and user experience, the high-sensitivity temperature measurement capability of the NTC temperature sensor, combined with the CAN communication linkage between the MCU main control chip and the vehicle's infotainment system, enables real-time acquisition and accurate analysis of temperature signals, vehicle speed signals, and charging status signals. The charging management chip dynamically adjusts the charging power, ensuring high-power fast charging efficiency when the battery is low, while also reducing power in time to prevent overheating at high temperatures, thus extending the lifespan of the control panel and base. At the same time, the fan drive chip responds to MCU commands, dynamically switching the fan's start / stop and speed level according to temperature and vehicle speed. At high speeds, it enhances heat dissipation and masks fan noise with background wind noise, while at low speeds, it operates at low speeds to ensure quietness, forming an intelligent linkage closed loop of "charging power - heat dissipation intensity - vehicle speed adaptation".

[0052] Furthermore, the overall design balances installation flexibility with operational stability. The power module can be integrated or assembled independently to adapt to different layout requirements. The conductive charging contact module ensures a stable connection for charging and communication. The precise control and reliable supply of the entire chain avoids problems such as charging interruption and heat dissipation lag, while reducing ineffective energy consumption and noise interference. Ultimately, it achieves a comprehensive effect of high charging efficiency, precise heat dissipation, stable operation, and comfortable experience, perfectly meeting the core requirements of equipment reliability, safety, and user experience in the vehicle scenario.

[0053] Example 3 This embodiment provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, it implements the steps of the heat dissipation control method as described in Embodiment 1.

[0054] It should be noted that examples of readable storage media include, but are not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatuses, or devices, or any combination thereof. More specific examples of readable storage media (a non-exhaustive list) include: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), optical fibers, portable compact disk read-only memory (CDROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this document, a readable storage medium can be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.

[0055] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A method for controlling the charging and heat dissipation of a vehicle rear armrest control screen, characterized in that, Includes the following steps: After the charging process on the control panel is started, the temperature signal of the control panel and the real-time vehicle speed signal are acquired. Based on the temperature signal and real-time vehicle speed signal, the charging strategy and fan cooling strategy are adjusted in a coordinated manner.

2. The charging and heat dissipation control method for the vehicle rear armrest control screen as described in claim 1, characterized in that, The startup logic of the control panel charging process includes the following steps: After the vehicle is started and woken up, it continuously checks whether the control panel has established a valid electrical connection with the relevant charging device. If a valid electrical connection has been established with the control panel, further check the power status of the control panel. If it is not fully charged, start the charging process.

3. The charging and heat dissipation control method for the vehicle rear armrest control screen as described in claim 1, characterized in that, The steps for adjusting the charging strategy include: Determine whether the temperature signal meets the preset temperature trigger condition; if it does, adjust the charging power accordingly. The preset temperature triggering conditions include a temperature exceeding a first temperature threshold or falling below a second temperature threshold, and the corresponding duration reaching a corresponding preset duration.

4. The charging and heat dissipation control method for the vehicle rear armrest control screen as described in claim 3, characterized in that, The value of the first temperature threshold is greater than the value of the second temperature threshold; When the temperature exceeds the first temperature threshold and the duration reaches the first preset duration, reduce the charging power; When the temperature remains below the second temperature threshold for an extended period of time, the charging power is increased.

5. The charging and heat dissipation control method for the vehicle rear armrest control screen as described in claim 1, characterized in that, The adjustment steps for the fan cooling strategy include: Adjust the preset fan start conditions according to the real-time vehicle speed signal, and determine whether the temperature signal meets the adjusted fan start conditions. If it does, start the cooling fan accordingly. The preset fan start-up conditions include a temperature exceeding a third temperature threshold and a corresponding duration reaching a preset duration.

6. The charging and heat dissipation control method for the vehicle rear armrest control screen as described in claim 5, characterized in that, The steps for adjusting the preset fan start conditions include: When the real-time vehicle speed is greater than the preset vehicle speed threshold, the third temperature threshold is kept unchanged, and the corresponding preset duration is reduced. When the real-time vehicle speed is less than the preset vehicle speed threshold, the value of the third temperature threshold is increased, while the preset duration remains unchanged.

7. The charging and heat dissipation control method for the vehicle rear armrest control screen as described in claim 6, characterized in that, The adjustment steps for the fan cooling strategy also include: After the cooling fan starts, the fan speed is adjusted according to the preset vehicle speed range where the real-time vehicle speed signal is located. The speed is positively correlated with the real-time vehicle speed.

8. A charging device for a vehicle rear armrest control screen, used to implement the vehicle rear armrest control screen charging and heat dissipation control method as described in claims 1-7, characterized in that, Includes base housing, conductive charging contact module, control circuit board, cooling fan and air duct; The conductive charging contact module is disposed on the panel of the base housing and is used to establish a stable electrical connection with the control panel to realize charging current transmission and signal communication. The cooling fan is installed in the base housing to generate cooling airflow; The air duct is located between the panel of the base housing and the cooling fan, and is used to guide the cooling airflow generated by the cooling fan to move along a specified path in order to cool down the charging area of ​​the control screen. The control circuit board is located in the base housing and is used to adjust the charging strategy and the fan cooling strategy.

9. The vehicle-mounted rear armrest control screen charging device as described in claim 8, characterized in that, The control circuit board includes an MCU main control chip, a charging management chip, and a fan drive chip; The MCU main control chip is connected to the vehicle power supply and communicates with the vehicle's infotainment system. The MCU main control chip is also electrically connected to a temperature detection unit for detecting the temperature of the charging area of ​​the control screen. The charging management chip is electrically connected to the MCU main control chip and the conductive charging contact module. It is used to respond to the instructions of the MCU main control chip to increase, decrease or maintain the charging power, and to transmit the charging status signal to the MCU main control chip in real time. The fan driver chip is electrically connected to the MCU main control chip and the cooling fan, and is used to receive the PWM signal output by the MCU main control chip to control the start and stop of the cooling fan and the switching of the speed level. And / or; also includes a DC-DC converter unit and an LDO circuit integrated on the control circuit board or separately mounted in the base housing; The MCU main control chip is electrically connected to the vehicle power supply through the LDO circuit and the DC-DC conversion unit in sequence. Both the fan drive chip and the charging management chip are electrically connected to the DC-DC conversion unit.

10. A computer-readable storage medium, characterized in that, The storage medium stores a computer program, which, when executed by a processor, implements the steps of the method according to any one of claims 1 to 7.

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