A method and device for improving odor in the cabin of a new energy vehicle

Abstract

The present invention provides a method for improving odor in the cabin of a new energy vehicle: after obtaining a charging signal and a vehicle status signal, the method determines whether the vehicle meets the function activation conditions based on the charging signal and the vehicle status signal. If not, the method ends; if so, the method proceeds to the next step. The vehicle status signal includes the vehicle's age, locking status, occupancy signal, window and door signals, and the outside temperature. After the decorative objects in the closed environment emit harmful gases for a first threshold time, the method determines whether there is a restriction condition signal. If so, S1 is re-executed; otherwise, the method proceeds to the next step. The method controls the operation of the blower and damper motor. If the blower receives an interrupt signal during operation for a second threshold time, the method executes a reset step and ends. Otherwise, the method controls the blower to continue operating until the second threshold time, executes a reset step, and ends. The present invention also provides a device for improving odor in the cabin of a new energy vehicle.

Description

Technical Field

[0001] The present invention relates to the automotive field, and in particular to a method for improving odor in a cabin of a new energy vehicle. Background Art

[0002] With the increasing popularity of new energy vehicles, buyers often open doors and windows to ventilate their new car's cabin to improve odor. However, this method relies on changing user habits, and often leads to people forgetting to close the windows, causing rainwater to flow back and damage the vehicle. Alternatively, forgetting to open the windows prevents odors from dissipating from the cabin.

[0003] Chinese patent CN110816205 discloses a method for controlling a vehicle's intelligent ventilation function, comprising the following steps: detecting the vehicle's up and down electrical signals and sending the detected signals to a controller; detecting the switch signals of the four-door locks and sending the detected signals to the controller; detecting the ambient temperature signal and sending the detected signal to the controller; if the controller determines based on the received signals that the vehicle is turned off, the four-door locks are locked, and the ambient temperature is greater than 10°C, then controlling the blower to perform internal circulation or external circulation for a first set duration.

[0004] While the above method can dry the evaporator and the air conditioning's internal and external circulation channels when the vehicle is turned off and locked, thereby eliminating odors and improving air quality, it is not suitable for new energy vehicles. Frequently turning the air conditioner on and off without charging will reduce the battery life and affect the vehicle's mileage. Summary of the Invention

[0005] The present invention solves the problem in the prior art of automatically improving the odor emitted from the cabin of a new energy vehicle and improving the air quality in the vehicle by providing a method and device for improving the odor in the cabin of a new energy vehicle.

[0006] The present application provides a method for improving odor in the cabin of a new energy vehicle, comprising the following steps:

[0007] S1) After obtaining a charging signal and a vehicle status signal, determining whether the vehicle meets the function activation conditions based on the charging signal and the vehicle status signal, if not, ending the process; if so, proceeding to the next step; the vehicle status signal includes vehicle age, locking status, occupancy signal, window and door signals, and ambient temperature;

[0008] S2) After the time for the decoration in the closed environment to emit harmful gases reaches a first threshold time, determining whether there is a restriction condition signal, and if so, re-execute S1; otherwise, execute the next step, wherein the first threshold time is the time for the decoration in the closed environment to emit harmful gases to reach a specified concentration;

[0009] S3) Control the operation of the blower and damper motor;

[0010] S4) If the blower receives an interrupt signal during operation for the second threshold time, the reset step is executed and the operation ends; otherwise, the blower is controlled to continue operating until the second threshold time and the reset step is executed and the operation ends. The second threshold time is the time when the harmful gas emitted by the decoration in the closed environment drops to a specified concentration after the blower is turned on.

[0011] Preferably, in the method for improving odor in the cabin of a new energy vehicle, the charging signal is an AC slow charging status signal.

[0012] Preferably, in the method for improving odor in the cabin of a new energy vehicle, the function activation conditions include: the vehicle is no longer than a preset age, the locking state is locked, the occupancy signal is zero, the window and door signals are closed, and the outside temperature is higher than the set temperature.

[0013] Preferably, in the method for improving odor in the cabin of a new energy vehicle, the restriction condition signal includes: an unlocking signal, the window and door signals being open, and a remote start signal.

[0014] Preferably, in the method for improving odor in the cabin of a new energy vehicle, the resetting step includes: turning off the blower and returning the damper motor to the last memorized state.

[0015] The present application also provides a device for improving odor in the cabin of a new energy vehicle, comprising:

[0016] A battery management control module, the battery management module is used to obtain a charging signal of the vehicle;

[0017] A body control module, the body control module is used to obtain a door control signal of the vehicle, the door control signal including a vehicle lock status and window and door signals;

[0018] An air conditioning control module is configured to control the blower and damper motor to continue operating until a second threshold time and execute shutdown / reset after the emission of harmful gases from the decorations in the closed environment reaches a first threshold time based on the charging signal, the gating signal, and the vehicle status signal and restriction condition signal read through CAN communication. The vehicle status signal includes the age of the vehicle, an occupancy signal, and the outside temperature. The first threshold time is the time when the emission of harmful gases from the decorations in the closed environment reaches a specified concentration. The second threshold time is the time when the emission of harmful gases from the decorations in the closed environment drops to a specified concentration after the blower is turned on.

[0019] Preferably, in the device for improving odor in the cabin of a new energy vehicle, the restriction condition signals include: an unlocking signal, the window and door signals being open, and a remote start signal.

[0020] Preferably, the device for improving odor in the cabin of a new energy vehicle controls the blower via a PWM or LIN signal.

[0021] Preferably, the device for improving odor in the cabin of a new energy vehicle controls the damper motor via LIN communication or analog signals.

[0022] Preferably, in the device for improving odor in the cabin of a new energy vehicle, the charging signal is an AC slow charging status signal.

[0023] The beneficial effect of the present invention is that it can effectively solve the initial odor problem of new energy vehicles without user operation. On the basis of the original hardware, it increases the user's feeling and experience value by adding a method to improve the odor in the vehicle cabin, thereby achieving the purpose of reducing optimization costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural diagram of the air-conditioning box of a new energy vehicle preferably selected in this embodiment.

[0025] Figure 2 This is a flow chart of a method for improving odor in a cabin of a new energy vehicle preferably according to this embodiment;

[0026] Figure 3 This is a logic control flow chart of the method for improving odor in the cabin of a new energy vehicle preferably in this embodiment;

[0027] Figure 4 This is a schematic diagram of the concentration of harmful gases emitted by decorations in a closed environment;

[0028] Figure 5 Schematic diagram of removing harmful gases from a vehicle through a blower in a closed environment;

[0029] Figure 6 This is a framework diagram of a device for improving odor in the cabin of a new energy vehicle preferably according to this embodiment. DETAILED DESCRIPTION

[0030] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0031] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0032] The present invention solves the problem in the prior art of automatically improving the odor emitted from the cabin of a new energy vehicle and improving the air quality in the vehicle by providing a method and device for improving the odor in the cabin of a new energy vehicle.

[0033] Figure 1 This is the structural diagram of the air-conditioning box of the new energy vehicle preferably in this embodiment. Figure 1 As shown, the air conditioning box of a new energy vehicle includes: a blower 1 and a damper motor 2. When the new energy vehicle is AC charging, and the user is far away from the vehicle and cannot sense it, the damper motor 2 is controlled to switch to the external circulation ventilation mode, and the air conditioning blower 1 is started to exchange air inside and outside the vehicle.

[0034] Figure 2 This is a flow chart of the method for improving odor in the cabin of a new energy vehicle preferably in this embodiment. Figure 2 As shown, the method for improving the odor in the cabin of a new energy vehicle includes the following steps:

[0035] S1) After obtaining a charging signal and a vehicle status signal, determining whether the vehicle meets the function activation conditions based on the charging signal and the vehicle status signal, if not, ending the process; if so, proceeding to the next step; the vehicle status signal includes vehicle age, locking status, occupancy signal, window and door signals, and ambient temperature;

[0036] S2) After the time for the decoration in the closed environment to emit harmful gases reaches a first threshold time, determining whether there is a restriction condition signal, and if so, re-execute S1; otherwise, execute the next step, wherein the first threshold time is the time for the decoration in the closed environment to emit harmful gases to reach a specified concentration;

[0037] S3) controlling the operation of the blower 1 and the damper motor 2;

[0038] S4) If the blower 1 receives an interrupt signal during operation for the second threshold time, the reset step is executed and the operation ends; otherwise, the blower 1 is controlled to continue operating until the second threshold time and the reset step is executed and the operation ends. The second threshold time is the time when the harmful gas emitted by the decorations in the closed environment drops to a specified concentration after the blower 1 is turned on.

[0039] Figure 3 This is a logic control flow chart of the method for improving the odor in the cabin of a new energy vehicle preferably in this embodiment. Figure 2 and Figure 3 Further explanation of the method to improve the odor in the cabin of new energy vehicles:

[0040] S1) After obtaining a charging signal and a vehicle status signal, determining whether the vehicle meets the function activation conditions based on the charging signal and the vehicle status signal, if not, ending the process; if so, proceeding to the next step; the vehicle status signal includes vehicle age, locking status, occupancy signal, window and door signals, and ambient temperature;

[0041] Preferably, the charging signal includes a slow charging state signal, and may also be a fast charging state signal.

[0042] Preferably, the function activation conditions include the vehicle's age not exceeding a set limit, the locked state being locked, the occupancy signal being zero, the window and door signals being closed, the battery load meeting requirements, and the ambient temperature being above a set temperature. In this embodiment, this temperature is preferably set above 10°C, as higher temperatures increase the likelihood of harmful gases being emitted. Activating this function is not recommended if the temperature is too low. Notably, the function activation conditions can also include using the method provided in this application no more than a certain number of times within a specified number of days. In this embodiment, this is preferably no more than N times within 7 days, where N is 1, 2, 3, etc.

[0043] S2) After the time for the decoration in the closed environment to emit harmful gases reaches a first threshold time, determining whether there is a restriction condition signal, and if so, re-execute S1; otherwise, execute the next step, wherein the first threshold time is the time for the decoration in the closed environment to emit harmful gases to reach a specified concentration;

[0044] Preferably, the restriction condition signal includes: an unlock signal, a window or door signal indicating that the vehicle is open, and a remote start signal.

[0045] Specifically, the first threshold time can be determined through experiments. Figure 4 This is a diagram showing the concentration of harmful gases emitted by decorations in a closed environment. Figure 4 As shown, t1 represents the time from when the person leaves the car after locking it to when the function is automatically activated (when there is an interruption signal such as unlocking or opening of any window or door, t1 needs to be re-timed after locking the car again). t1 is obtained based on actual tests on the accumulation of harmful gas concentrations emitted by decorations in a closed environment.

[0046] S3) controlling the operation of the blower 1 and the damper motor 2;

[0047] S4) If the blower 1 receives an interrupt signal during operation for the second threshold time, the reset step is executed and the operation ends; otherwise, the blower 1 is controlled to continue operating until the second threshold time and the reset step is executed and the operation ends. The second threshold time is the time when the harmful gas emitted by the decorations in the closed environment drops to a specified concentration after the blower 1 is turned on.

[0048] Preferably, the resetting step includes: turning off the blower 1 and returning the damper motor 2 to the last memorized state.

[0049] Specifically, the second threshold time can be determined through experiments. Figure 5 This is a schematic diagram of removing harmful gases from a vehicle through a blower 1 in a closed environment. Figure 5 As shown, t2 represents the working time of blower 1 after the function is activated (blower 1 will stop working when there is an interruption signal such as unlocking, opening of any window or door, and completion of charging). t2 is obtained based on actual tests and requires consideration of battery energy management. How to perform ventilation for t2 while consuming the least energy can maximize the discharge of harmful gases in the cabin.

[0050] Figure 6 This is a schematic diagram of the preferred embodiment of the device framework for improving odor in the cabin of a new energy vehicle. Figure 6 As shown, the device for improving odor in the cabin of new energy vehicles includes:

[0051] The battery management control module 10 is used to obtain the charging signal of the vehicle;

[0052] The body control module 20 is used to obtain the vehicle's door control signal, which includes the vehicle's locking status and window and door signals;

[0053] The air conditioning control module 30 is used to control the blower and the damper motor to continue running until the second threshold time and execute shutdown / reset after the harmful gas emitted by the decorations in the closed environment reaches a first threshold time based on the charging signal, the gating signal, and the vehicle status signal and restriction condition signal read through CAN communication. The vehicle status signal includes the vehicle's age, occupancy signal and external temperature. The first threshold time is the time when the harmful gas emitted by the decorations in the closed environment reaches a specified concentration. The second threshold time is the time when the harmful gas emitted by the decorations in the closed environment drops to a specified concentration after the blower is turned on.

[0054] Preferably, the restriction condition signal includes: an unlock signal, a window or door signal indicating that the vehicle is open, and a remote start signal.

[0055] Preferably, the blower is controlled by PWM or LIN signal; the damper motor is controlled by LIN communication or analog signal.

[0056] Specifically, the battery management control module 10 collects the charging signal, preferably the AC slow charging signal in this embodiment, and sends it to the body control module 20. The collected door control signal determines the current door lock status. The air conditioning control module 30 can read the vehicle status signal through CAN (Controller Area Network) communication and make a logical judgment on the summarized information. If the air conditioning control module 30 determines the function activation status and does not recognize the restriction condition signal through the above-mentioned method for improving the odor in the cabin of a new energy vehicle, it transmits the activation signal to the blower 1 and the inner and outer damper motor 2, and turns the blower on or off through PWM (Pulse Width Modulation, a method of digitally encoding analog signal levels) or LIN (Local Interconnect Network, a network protocol). The inner and outer damper motor movement is set through LIN communication or analog signals, driving the damper to stay in the corresponding position. Among them, the first threshold time and the second threshold time can be determined by the above-mentioned experiment.

[0057] In the above embodiment, the control logic of the method of the present application is integrated into the air conditioning control module 30. Since the air conditioning control module itself remains in an awake state to meet the battery cooling needs when the new energy vehicle is charging, there is no need to perform unnecessary operations on the air conditioning controller by waking up the vehicle CAN. The air conditioning control module 30 can directly output the control of the blower and damper motor. The specific logic is: when entering the AC slow charging state, after a period of time, after the concentration of harmful gases emitted by the decorations accumulates, it is determined whether the vehicle windows and doors are closed, whether the vehicle is locked, whether the seat occupancy signal is 0 (i.e., whether there are passengers in the vehicle), the appropriateness of the outside temperature, whether the time since the last use of the air conditioning exceeds a certain time, and whether the energy management (battery load capacity) is met. If it is determined that the function triggering conditions are met, the external circulation damper is opened to 100%, and the blower is turned on at a certain gear for ventilation for a period of time, and automatically ends after the specified working time is reached. During the operation of the blower, if a signal such as unlocking, opening windows and doors, remote start, or charging completion is detected, the operation will be automatically interrupted, and the air conditioning control module 30 will be reset to the last used setting.

[0058] The feature can also be restricted to being triggered only during the first few years of a new vehicle's life, and the number of times it can be run per week can also be limited.

[0059] This invention provides users of new energy vehicles with a novel air conditioning control method. By intelligently ventilating the cabin environment, automatic operation can be performed without the user constantly monitoring cabin air quality, fundamentally resolving the odor problem in new vehicle cabins. This method offers the advantage of requiring no additional hardware costs; only minor logical modifications to the existing basic air conditioning control logic can be made to add new functionality. For users, this improves in-car air quality and enhances their experience without disrupting their normal usage habits.

[0060] As used in this application and the claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" are not intended to refer to the singular but may include the plural. Generally speaking, the terms "comprises" and "include" only indicate the inclusion of the steps and elements specifically identified, and these steps and elements do not constitute an exclusive list. A method or apparatus may also include other steps or elements.

[0061] Those skilled in the art will appreciate that information, signals, and data may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips cited throughout the foregoing description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0062] Those skilled in the art will further appreciate that the various illustrative logic blocks, modules, circuits, and algorithmic steps described in conjunction with the embodiments disclosed herein can be implemented as electronic hardware, computer software, or a combination of the two. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps are generally described above in terms of their functionality. Whether such functionality is implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system. A skilled person may implement the described functionality in different ways for each specific application, but such implementation decisions should not be interpreted as resulting in a departure from the scope of the present invention.

[0063] The various illustrative logic modules and circuits described in conjunction with the embodiments disclosed herein may be implemented or executed using a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general-purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.

[0064] The steps of the methods or algorithms described in conjunction with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. The software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor so that the processor can read and write information from / to the storage medium. In an alternative, the storage medium may be integrated into the processor. The processor and storage medium may reside in an ASIC. The ASIC may reside in a user terminal. In an alternative, the processor and storage medium may reside in a user terminal as discrete components.

[0065] In one or more exemplary embodiments, the functions described may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software as a computer program product, the functions may be stored on or transmitted via a computer-readable medium as one or more instructions or codes. Computer-readable media include both computer storage media and communication media, including any media that facilitates the transfer of a computer program from one location to another. A storage medium may be any available medium that can be accessed by a computer. By way of example and not limitation, such computer-readable media may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. Any connection is also properly referred to as a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwaves, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwaves are included in the definition of medium. As used herein, disk and disc include compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disk and Blu-ray disc, where disks typically reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above should also be included within the scope of computer-readable media.

[0066] The above embodiments are provided to persons familiar with the art for implementing or using the present invention. Personnel familiar with the art may make various modifications or changes to the above embodiments without departing from the inventive concept of the present invention. Therefore, the scope of protection of the present invention is not limited to the above embodiments, but should be the maximum scope of the innovative features mentioned in the claims.

Claims

1. A method for improving odor in the cabin of a new energy vehicle, comprising the following steps: S1) After obtaining a charging signal and a vehicle status signal, determining whether the vehicle meets the function activation conditions based on the charging signal and the vehicle status signal, if not, ending the process; if so, proceeding to the next step; the vehicle status signal includes vehicle age, locking status, occupancy signal, window and door signals, and ambient temperature; S2) After the time for the decoration in the closed environment to emit harmful gases reaches a first threshold time, determining whether there is a restriction condition signal, and if so, re-execute S1; otherwise, execute the next step, wherein the first threshold time is the time for the decoration in the closed environment to emit harmful gases to reach a specified concentration; S3) Control the operation of the blower and damper motor; S4) if the blower receives an interrupt signal during operation for a second threshold time, executing a reset step and terminating; otherwise, controlling the blower to continue operating until the second threshold time, executing a reset step and terminating, wherein the second threshold time is the time after the blower is turned on for the harmful gas emitted by the decoration in the closed environment to drop to a specified concentration, and the first threshold time and the second threshold time are determined through experiments; Among them, the function activation conditions include: the vehicle usage age does not exceed the preset age, the locking state is locked, the occupancy signal is zero, the window and door signals are closed, and the outside temperature is higher than the set temperature.

2. The method for improving odor in the cabin of a new energy vehicle according to claim 1, characterized in that: The charging signal is an AC slow charging state signal.

3. The method for improving odor in the cabin of a new energy vehicle according to claim 1, characterized in that: The restriction condition signals include: an unlock signal, a window or door signal indicating that the vehicle is open, and a remote start signal.

4. The method for improving odor in the cabin of a new energy vehicle according to claim 1, characterized in that: The resetting step includes: turning off the blower and returning the damper motor to a last memorized state.

5. A device for improving odor in the cabin of a new energy vehicle, characterized in that: include: A battery management control module, the battery management control module is used to obtain a charging signal of the vehicle; A body control module, the body control module is used to obtain a door control signal of the vehicle, the door control signal including a vehicle lock status and window and door signals; an air conditioning control module, the air conditioning control module being configured to control the blower and damper motor to continue operating until a second threshold time and then shut down / reset after harmful gases emitted by decorations in a closed environment reach a first threshold time based on the charging signal, the gating signal, and a vehicle status signal and a restriction condition signal read via CAN communication, the vehicle status signal including the vehicle age, an occupancy signal, and an ambient temperature; the first threshold time being the time when harmful gases emitted by decorations in a closed environment reach a specified concentration; the second threshold time being the time when harmful gases emitted by decorations in the closed environment drop to a specified concentration after the blower is turned on; the first and second threshold times being determined experimentally; The restriction condition signals include: an unlock signal, a window or door signal indicating that the vehicle is open, and a remote start signal.

6. The device for improving odor in the cabin of a new energy vehicle according to claim 5, characterized in that: The blower is controlled by PWM or LIN signals.

7. The device for improving odor in the cabin of a new energy vehicle according to claim 5, characterized in that: The damper motor is controlled via LIN communication or analog signals.

8. The device for improving odor in the cabin of a new energy vehicle according to claim 5, characterized in that: The charging signal is an AC slow charging state signal.

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