Automobile passenger compartment electromagnetic monitoring system and method

Abstract

The invention discloses an automobile passenger compartment electromagnetic monitoring system and method, and the method comprises the steps: monitoring the actual radiation intensity in an automobile passenger compartment in real time, calculating the average radiation intensity of the passenger compartment in a time interval according to the actual radiation intensity, and determining the electromagnetic radiation level in the passenger compartment based on the average radiation intensity. Different levels of electromagnetic radiation in the passenger compartment are displayed in different colors. The electromagnetic radiation level of each position is monitored in real time through the radiation sensors arranged at each position of the passenger compartment, comprehensive evaluation can be performed on the electromagnetic radiation level of each position, so that the electromagnetic radiation level and the electromagnetic radiation health state of the passenger compartment are given, and the method is simple, reasonable in design, convenient to implement and high in practicability. Passengers can know the electromagnetic radiation condition in the automobile in time, and the safe and stable operation environment of the electric automobile is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of automobiles, and in particular relates to an electromagnetic monitoring system and method for an automobile passenger compartment. Background Art

[0002] Electric vehicles are high-power electronic products, and the problem of electromagnetic radiation has always been a core issue of concern to consumers. Patent CN 116223958 A discloses an electromagnetic interference detection and early warning device for an electric vehicle's driving environment, including an external electromagnetic interference signal acquisition module and an internal electromagnetic interference signal acquisition module. The external electromagnetic interference signal acquisition module and the internal electromagnetic interference signal acquisition module are simultaneously connected to an internal signal acquisition and processing module, and the internal signal acquisition and processing module is connected to an internal signal response and early warning module. The present invention also discloses a design method for an electromagnetic interference detection and early warning device for an electric vehicle's driving environment. Through the present invention, an accurate real-time electromagnetic environment electromagnetic interference signal that is not affected by external factors can be obtained, thereby ensuring a safe and stable operating environment for electric vehicles.

[0003] The above patent only proposes the collection, processing and early warning modules of the magnetic field interference signals outside the vehicle and inside the vehicle. It does not propose the calculation method of the electromagnetic field radiation intensity and the comprehensive electromagnetic radiation intensity in different areas of the cabin, nor does it propose the evaluation method of the electromagnetic radiation level in the cabin. It is not very practical. Summary of the invention

[0004] The purpose of the present invention is to solve the deficiencies of the above-mentioned background technology and to provide an electromagnetic monitoring system and method for a vehicle passenger compartment.

[0005] The technical solution adopted by the present invention is: an electromagnetic monitoring system for a vehicle passenger compartment, comprising a radiation monitoring module for real-time monitoring of the actual radiation intensity in the vehicle passenger compartment;

[0006] The radiation calculation module is used to calculate the average radiation intensity of the passenger cabin within a certain time interval based on the actual radiation intensity.

[0007] A radiation evaluation module, used to determine the electromagnetic radiation level in the passenger compartment based on the average radiation intensity;

[0008] The radiation warning module is used to display different electromagnetic radiation levels in the passenger compartment in different colors.

[0009] Furthermore, it also includes

[0010] The current detection module is used to detect the current of each electrical device that generates electromagnetic radiation on the car in real time;

[0011] The electromagnetic radiation diagnostic module is used to diagnose the source of the electromagnetic radiation based on the current when the electromagnetic radiation level in the passenger compartment is unacceptable.

[0012] Furthermore, the radiation monitoring module includes radiation sensors respectively arranged in the driving area, the co-pilot area, the left rear area, and the right rear area.

[0013] Furthermore, the average radiation intensity of the passenger cabin within a certain time interval is calculated by the following formula:

[0014]

[0015] Among them, EMR i (T) is the average radiation intensity of the ith region in the T time interval, EMR i (t) is the actual radiation intensity of the ith region at time t.

[0016] Furthermore, the radiation calculation module is also used to calculate the real-time comprehensive radiation intensity of the passenger compartment by the following formula:

[0017] EMR0(t)=k1×EMR1(t)+k2×EMR2(t)+k3×EMR3(t)+k4×EMR4(t)

[0018] Among them, EMR0(t) is the real-time comprehensive radiation intensity of the passenger compartment at time t, EMR1(t) is the actual radiation intensity of the first area at time t, EMR2(t) is the actual radiation intensity of the second area at time t, EMR3(t) is the actual radiation intensity of the third area at time t, EMR4(t) is the actual radiation intensity of the fourth area at time t, k1, k2, k3, k4 are the weight factors of the radiation intensities of the first area, the second area, the third area, and the fourth area, respectively.

[0019] Further, if the average radiation intensity is less than or equal to the first set value, the electromagnetic radiation level is determined to be excellent;

[0020] If the average radiation intensity is greater than the first set value and less than or equal to the second set value, it is determined that the electromagnetic radiation level is good;

[0021] If the average radiation intensity is greater than the second set value and less than or equal to the third set value, then the electromagnetic radiation level is determined to be acceptable;

[0022] If the average radiation intensity is greater than the third set value, the electromagnetic radiation level is determined to be unacceptable.

[0023] Further, when the electromagnetic radiation level is excellent, a first color is displayed in a corresponding area of ​​the instrument panel;

[0024] When the electromagnetic radiation level is good, a second color is displayed in the corresponding area of ​​the instrument panel;

[0025] When the electromagnetic radiation level is acceptable, a third color is displayed in the corresponding area of ​​the instrument panel;

[0026] When the electromagnetic radiation level is unacceptable, a fourth color is displayed in the corresponding area of ​​the instrument panel.

[0027] Furthermore, when the electromagnetic radiation level is unacceptable, a fourth color is displayed in the corresponding area of ​​the instrument panel and keeps flashing, and a warning sound is emitted through a buzzer.

[0028] Furthermore, the process of diagnosing the source of electromagnetic radiation based on the current is: calculating the current change rate of each electrical device based on the detected current of each electrical device, comparing the current change rate with the current change rate extreme value, and when the current change rate of a certain electrical device is greater than or equal to the current change rate extreme value, then the electrical device is determined to be one of the sources of electromagnetic radiation.

[0029] A method for monitoring electromagnetic radiation in a passenger compartment of a vehicle monitors the actual radiation intensity in the passenger compartment of the vehicle in real time, calculates the average radiation intensity in the passenger compartment during an interval of time according to the actual radiation intensity, determines the electromagnetic radiation level in the passenger compartment based on the average radiation intensity, and displays different electromagnetic radiation levels in the passenger compartment in different colors.

[0030] The beneficial effects of the present invention are:

[0031] The present invention monitors the electromagnetic radiation level of each position in real time by arranging radiation sensors at various positions in the passenger compartment, and can make a comprehensive evaluation of the electromagnetic radiation level at each position, thereby providing the electromagnetic radiation level of the passenger compartment and the electromagnetic radiation health status. The method is simple, reasonably designed, and easy to implement, which is beneficial for passengers to understand the electromagnetic radiation situation in the car in time, thereby ensuring a safe and stable operating environment for electric vehicles.

[0032] The present invention also detects the current of each electrical device that generates electromagnetic radiation on the car to determine the source of the electromagnetic radiation when the electromagnetic radiation level is unacceptable, thereby providing engineering electromagnetic design and guidance for rectifying the electromagnetic radiation source in the car, improving the electromagnetic quality in the car, and improving the electromagnetic safety of the passengers. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the monitoring system of the present invention. DETAILED DESCRIPTION

[0034] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0035] like Figure 1As shown, the present invention provides an electromagnetic monitoring system for a vehicle passenger compartment, including a radiation monitoring module for real-time monitoring of the actual radiation intensity in the vehicle passenger compartment;

[0036] The radiation calculation module is used to calculate the average radiation intensity of the passenger cabin within a certain time interval based on the actual radiation intensity.

[0037] A radiation evaluation module is used to determine the electromagnetic radiation level in the passenger compartment according to the average radiation intensity; both the radiation calculation module and the radiation evaluation module can be integrated into the control unit ECU;

[0038] The radiation warning module is used to display different electromagnetic radiation levels in the passenger compartment in different colors.

[0039] The present invention monitors the electromagnetic radiation level of each position in real time by arranging radiation sensors at various positions in the passenger compartment, and can make a comprehensive evaluation of the electromagnetic radiation level at each position, thereby providing the electromagnetic radiation level of the passenger compartment and the electromagnetic radiation health status. The system is simple, reasonably designed, and easy to implement, which is beneficial for passengers to understand the electromagnetic radiation conditions in the car in a timely manner, thereby ensuring a safe and stable operating environment for electric vehicles.

[0040] In the above solution, the radiation monitoring module includes radiation sensors arranged in the driving area, the co-pilot area, the rear left area, and the rear right area respectively. More radiation sensors can be arranged according to the actual vehicle size, and the specific arrangement position is set according to the actual installation requirements.

[0041] In the above scheme, the radiation calculation module is also used to calculate the real-time comprehensive radiation intensity of the passenger cabin by the following formula:

[0042] EMR0(t)=k1×EMR1(t)+k2×EMR2(t)+k3×EMR3(t)+k4×EMR4(t)

[0043] Among them, EMR0(t) is the real-time integrated radiation intensity of the passenger compartment at time t, EMR1(t) is the actual radiation intensity of the first area at time t, EMR2(t) is the actual radiation intensity of the second area at time t, EMR3(t) is the actual radiation intensity of the third area at time t, EMR4(t) is the actual radiation intensity of the fourth area at time t, k1, k2, k3, k4 are the weight factors of the radiation intensity of the first area, the second area, the third area, and the fourth area (i.e., the driving area, the co-pilot area, the left rear area, and the right rear area) respectively. The real-time integrated radiation intensity of the passenger compartment is only used to display the radiation situation of the entire area in the vehicle and is not used as a diagnostic benchmark.

[0044] In the above scheme, the radiation evaluation module calculates the average radiation intensity of the passenger cabin within a certain time interval by the following formula:

[0045]

[0046] Among them, EMR i (T) is the average radiation intensity of the ith region in the T time interval, EMR i (t) is the actual radiation intensity of the i-th area at time t. i takes values ​​of 0-4, corresponding to the overall area, the driving area, the co-pilot area, the left rear area, and the right rear area, respectively.

[0047] In the above scheme, the process of determining the electromagnetic radiation level in the passenger cabin based on the average radiation intensity is as follows:

[0048] If the average radiation intensity is less than or equal to the first set value, the electromagnetic radiation level is determined to be excellent;

[0049] If the average radiation intensity is greater than the first set value and less than or equal to the second set value, it is determined that the electromagnetic radiation level is good;

[0050] If the average radiation intensity is greater than the second set value and less than or equal to the third set value, then the electromagnetic radiation level is determined to be acceptable;

[0051] If the average radiation intensity is greater than a third set value, determining that the electromagnetic radiation level is unacceptable;

[0052] The first set value, the second set value, and the third set value are all calibrated threshold values, and increase in sequence.

[0053] In the above scheme, different colors are used to show different electromagnetic radiation levels in the passenger compartment:

[0054] When the electromagnetic radiation level is excellent, the first color is displayed in the corresponding area of ​​the instrument panel;

[0055] When the electromagnetic radiation level is good, a second color is displayed in the corresponding area of ​​the instrument panel;

[0056] When the electromagnetic radiation level is acceptable, a third color is displayed in the corresponding area of ​​the instrument panel, and a warning sound is emitted through a speaker or buzzer, which is repeated three times in a form of 5 seconds lasting and 5 seconds apart;

[0057] When the electromagnetic radiation level is unacceptable, a fourth color is displayed in the corresponding area of ​​the instrument panel and flashes at a set frequency, while a warning sound is continuously emitted through a speaker or buzzer.

[0058] Among them, the first color, the second color, the third color, and the fourth color are different and the color depth increases sequentially. The specific color can be set according to the passenger's identification needs.

[0059] The above scheme also includes a current detection module and an electromagnetic radiation diagnosis module, wherein the current detection module is used to detect the current of each electrical device that generates electromagnetic radiation on the car in real time; the electromagnetic radiation diagnosis module is used to diagnose the source of electromagnetic radiation according to the current when the electromagnetic radiation level in the passenger compartment is unacceptable. The present invention detects the current of each electrical device that generates electromagnetic radiation on the car to determine the source of electromagnetic radiation when the electromagnetic radiation level is unacceptable, thereby providing engineering electromagnetic design and guidance for rectifying the electromagnetic radiation source in the car, improving the electromagnetic quality in the car, and improving the electromagnetic safety of the passengers.

[0060] The process of diagnosing the source of electromagnetic radiation based on the current is as follows: calculating the current change rate of each electrical device based on the detected current of each electrical device, comparing the current change rate with the current change rate extreme value, and when the current change rate of a certain electrical device is greater than or equal to the current change rate extreme value, then the electrical device is determined to be one of the sources of electromagnetic radiation.

[0061] The present invention also provides a method for monitoring electromagnetic radiation in a vehicle passenger compartment, which monitors the actual radiation intensity in the vehicle passenger compartment in real time, calculates the average radiation intensity in the passenger compartment during an interval of time based on the actual radiation intensity, determines the electromagnetic radiation level in the passenger compartment based on the average radiation intensity, and displays different electromagnetic radiation levels in the passenger compartment in different colors for early warning.

[0062] In the above scheme, the monitored radiation intensity includes the radiation intensity of the driving area EMR1(t), the radiation intensity of the co-pilot area EMR2(t), the radiation intensity of the left rear area EMR3(t), and the radiation intensity of the right rear area EMR4(t). Based on the detected data, the real-time cabin comprehensive radiation intensity of the occupants can be calculated by the following formula:

[0063] EMR0(t)=k1×EMR1(t)+k2×EMR2(t)+k3×EMR3(t)+k4×EMR4(t).

[0064] The average radiation intensity of each area at any time interval T (from time t to time t+T) can be calculated according to the following formula:

[0065]

[0066] In the above scheme, the process of determining the electromagnetic radiation level is:

[0067] If, EMR i (T)≤EMRT1, excellent electromagnetic radiation level

[0068] If EMRT1<EMR i (T)≤EMRT2, good electromagnetic radiation level

[0069] If EMRT2<EMR i (T)≤EMRT3, the electromagnetic radiation level is acceptable

[0070] If EMRT3<EMR i (T)≤EMRT3, the electromagnetic radiation level is unacceptable, wherein EMRT1 (first set value), EMRT2 (second set value), and EMRT3 (third set value) are calibrated threshold values ​​under various states.

[0071] In the above scheme, the process of electromagnetic radiation level warning is as follows:

[0072] If the electromagnetic radiation level is "excellent", the corresponding area of ​​the instrument panel (HMI) will be displayed in dark green;

[0073] If the electromagnetic radiation level is "good", the corresponding area of ​​the instrument panel (HMI) will be displayed in light green;

[0074] If the electromagnetic radiation level is "acceptable", the corresponding area of ​​the instrument panel (HMI) will be displayed in yellow and a warning sound will be emitted for 5 seconds, with an interval of 5 seconds, and repeated 3 times;

[0075] If the electromagnetic radiation level is "unacceptable", the corresponding area of ​​the instrument panel (HMI) will be displayed in red and flash continuously, and a warning sound will be emitted for 5 seconds, with an interval of 5 seconds, and repeated 3 times.

[0076] In the above scheme, when the electromagnetic radiation level is "unacceptable", electromagnetic radiation self-diagnosis can also be performed to determine the source of radiation.

[0077] For electric vehicles, the main radiation sources in the passenger compartment are the power battery BTTY, drive motor EGY, display screen MNR, electric power steering EPS and other systems. The currents of each electrical device through the current detection module are respectively the current I1(t) of the power battery BTTY, the current I2(t) of the drive motor EGY, the current I3(t) of the display screen MNR, and the current I4(t) of the electric power steering EPS. The power change rate of each device is obtained by derivation of each current, which are respectively

[0078] Then compare each current change rate with the corresponding current change rate extreme value (I1′0, I2′0, I3′0, I4′0). When the current change rate of a certain electrical equipment is greater than or equal to the current change rate extreme value, the electrical equipment is determined to be one of the sources of electromagnetic radiation, that is, the source of the radiation source exceeding the standard fault can be locked, providing guidance for fault maintenance.

[0079] After the present invention is applied to a real vehicle, the current of multiple radiation sources in the vehicle can be monitored in real time, thereby locating the source of the electromagnetic radiation source, and further providing engineering electromagnetic design and guidance for rectifying the electromagnetic radiation source in the vehicle, improving the electromagnetic quality in the vehicle, and improving the electromagnetic safety of the passengers.

[0080] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field.

Claims

1. An electromagnetic radiation monitoring system for a vehicle passenger compartment, characterized in that: include Radiation monitoring module, used to monitor the actual radiation intensity in the car passenger compartment in real time; The radiation calculation module is used to calculate the average radiation intensity of the passenger cabin within a certain time interval based on the actual radiation intensity. A radiation evaluation module, used to determine the electromagnetic radiation level in the passenger compartment based on the average radiation intensity; The radiation warning module is used to display different electromagnetic radiation levels in the passenger compartment in different colors.

2. The electromagnetic monitoring system for a vehicle passenger compartment according to claim 1, characterized in that: The radiation monitoring module includes radiation sensors respectively arranged in the driving area, the co-pilot area, the left rear area, and the right rear area.

3. The electromagnetic monitoring system for a vehicle passenger compartment according to claim 1, characterized in that: The average radiation intensity in the crew cabin within a certain time interval is calculated by the following formula Among them, EMR i (T) is the average radiation intensity of the ith region in the T time interval, EMR i (t) is the actual radiation intensity of the ith region at time t.

4. The electromagnetic monitoring system for a vehicle passenger compartment according to claim 1, characterized in that: The radiation calculation module is also used to calculate the real-time comprehensive radiation intensity of the passenger cabin by the following formula EMR0(t)=k1×EMR1(t)+k2×EMR2(t)+k3×EMR3(t)+k4×EMR4(t) Among them, EMR0(t) is the real-time comprehensive radiation intensity of the passenger compartment at time t, EMR1(t) is the actual radiation intensity of the first area at time t, EMR2(t) is the actual radiation intensity of the second area at time t, EMR3(t) is the actual radiation intensity of the third area at time t, EMR4(t) is the actual radiation intensity of the fourth area at time t, k1, k2, k3, k4 are the weight factors of the radiation intensities of the first area, the second area, the third area, and the fourth area, respectively.

5. The electromagnetic monitoring system for a vehicle passenger compartment according to claim 1, characterized in that: If the average radiation intensity is less than or equal to the first set value, the electromagnetic radiation level is determined to be excellent; If the average radiation intensity is greater than the first set value and less than or equal to the second set value, it is determined that the electromagnetic radiation level is good; If the average radiation intensity is greater than the second set value and less than or equal to the third set value, then the electromagnetic radiation level is determined to be acceptable; If the average radiation intensity is greater than the third set value, the electromagnetic radiation level is determined to be unacceptable.

6. The electromagnetic monitoring system for the passenger compartment of a vehicle according to claim 5, characterized in that: When the electromagnetic radiation level is excellent, the first color is displayed in the corresponding area of ​​the instrument panel; When the electromagnetic radiation level is good, a second color is displayed in the corresponding area of ​​the instrument panel; When the electromagnetic radiation level is acceptable, a third color is displayed in the corresponding area of ​​the instrument panel; When the electromagnetic radiation level is unacceptable, a fourth color is displayed in the corresponding area of ​​the instrument panel.

7. The electromagnetic monitoring system for a vehicle passenger compartment according to claim 6, characterized in that: When the electromagnetic radiation level is unacceptable, a fourth color will be displayed in the corresponding area of ​​the instrument panel and will continue to flash, and a warning sound will be emitted through the buzzer.

8. The electromagnetic monitoring system for a vehicle passenger compartment according to claim 1, characterized in that: Also includes The current detection module is used to detect the current of each electrical device that generates electromagnetic radiation on the car in real time; The electromagnetic radiation diagnostic module is used to diagnose the source of the electromagnetic radiation based on the current when the electromagnetic radiation level in the passenger compartment is unacceptable.

9. The electromagnetic monitoring system for a vehicle passenger compartment according to claim 8, characterized in that: The process of diagnosing the source of electromagnetic radiation based on the current is as follows: calculating the current change rate of each electrical device based on the detected current of each electrical device, comparing the current change rate with the current change rate extreme value, and when the current change rate of a certain electrical device is greater than or equal to the current change rate extreme value, then the electrical device is determined to be one of the sources of electromagnetic radiation.

10. A method for monitoring electromagnetic radiation in a passenger compartment of a vehicle, characterized in that: Monitor the actual radiation intensity in the car's passenger compartment in real time, calculate the average radiation intensity in the passenger compartment during intervals based on the actual radiation intensity, determine the electromagnetic radiation level in the passenger compartment based on the average radiation intensity, and display different electromagnetic radiation levels in the passenger compartment in different colors.

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