Intelligent control method and system for automobile seat temperature based on occupant weight

Abstract

The present application discloses an intelligent control method and system for the temperature of an automotive seat based on the weight of the occupant. The intake air volume of the automotive engine per unit time is calculated based on the weight of the occupant, and the fuel consumption of the automotive engine per unit time required is calculated according to the intake air volume. An additional supply of fuel and intake air is supplied to the automotive engine for combustion to obtain the calorific value of the ride. The optimal temperature of the seat where the occupant is located is calculated, and the current body temperature of the occupant is measured. The heat transfer rate of the calorific value of the ride conducted to the seat is calculated based on the current body temperature. The calorific value of the ride is conducted to the seat where the occupant is located according to the heat transfer rate, and the real-time temperature of the seat is monitored to obtain the real-time seat temperature until the difference between the real-time seat temperature and the optimal seat temperature is within a preset temperature difference range, completing the intelligent control of the temperature of the automotive seat. In this way, while ensuring driving safety, a technical solution for improving the intelligence of seat heat transfer can be achieved.

Description

Technical Field

[0001] The present application relates to the technical field of intelligent control, and more specifically, to an intelligent control method and system for automobile seat temperature based on the weight of the occupant. Background Art

[0002] With the development of science and technology, while the popularity rate of automobiles is getting higher and higher, the degree of automobile intelligence is also getting higher and higher. Among them, the main research directions of the degree of automobile intelligence lie in two aspects: autonomous driving technology and automobile energy control. The main research direction of automobile energy control lies in energy supply and energy conservation.

[0003] Currently, one of the commonly used directions for energy conservation is to intelligently control the temperature inside the vehicle, including the temperature of the in-vehicle air conditioner and the temperature of the automobile seat. It should be emphasized that for the control method of increasing the temperature of the automobile seat, the traditional methods generally adopt two ways: manual adjustment or fixed temperature. Although manual adjustment or fixed temperature can also achieve the automatic increase of the seat temperature, when the occupant is the driver, while driving the car, the driver also needs to continuously adjust the seat temperature, which will distract the driver's attention and thus increase the driving risk. And the intelligence of the fixed temperature is relatively low. When the fixed temperature is too high, it will cause excessive waste of resources, and when it is too low, it will affect the riding experience of the occupant.

[0004] Therefore, generally speaking, a technical solution that can improve the intelligence of seat heat transfer while ensuring driving safety. Summary of the Invention

[0005] In order to solve the above technical problems, the present application is proposed. The embodiments of the present application provide an intelligent control method and system for automobile seat temperature based on the weight of the occupant, and its main purpose is to provide a technical solution that can improve the intelligence of seat heat transfer while ensuring driving safety.

[0006] According to one aspect of the present application, an intelligent control method for automobile seat temperature based on the weight of the occupant is provided, which includes:

[0007] Receiving a seat temperature increase instruction initiated by the occupant, and starting a pressure sensor and a body temperature measurer of the seat where the occupant is located according to the seat temperature increase instruction. Among them, the heat required to increase the seat temperature is supplied by the automobile engine;

[0008] Using the pressure sensor to obtain the sitting weight of the occupant, and calculating the intake air volume of the automobile engine per unit time according to a preset calculation formula and the sitting weight. Among them, the automobile engine also includes power intake air volume;

[0009] On the premise that the sum of the power intake air volume and the passenger intake air volume is not greater than the maximum intake air volume of the vehicle engine per unit time, calculate the passenger fuel consumption required by the vehicle engine per unit time according to the passenger intake air volume;

[0010] Supplement additional passenger fuel and passenger intake air to the vehicle engine for combustion to obtain the passenger calorific value;

[0011] Calculate the optimal seat temperature of the seat where the passenger is located according to the passenger weight of the passenger;

[0012] Use the body temperature measuring device to measure the current body temperature of the passenger, and calculate the heat transfer rate at which the passenger calorific value is conducted to the seat based on the current body temperature;

[0013] Conduct the passenger calorific value to the seat where the passenger is located according to the heat transfer rate, and monitor the real-time temperature of the seat to obtain the real-time seat temperature;

[0014] Until the difference between the real-time seat temperature and the optimal seat temperature is within the preset temperature difference range, complete the intelligent control of the vehicle seat temperature.

[0015] According to another aspect of the present application, there is provided an intelligent control system for vehicle seat temperature based on passenger weight, which includes:

[0016] A temperature increase instruction receiving module, configured to receive a seat temperature increase instruction initiated by a passenger, and start a pressure sensor and a body temperature measuring device of the seat where the passenger is located according to the seat temperature increase instruction. Among them, the heat required to increase the seat temperature is supplied by the vehicle engine;

[0017] A passenger fuel consumption calculation module, configured to use the pressure sensor to obtain the passenger weight of the passenger, and calculate the passenger intake air volume of the vehicle engine per unit time according to a preset calculation formula and the passenger weight. Among them, the vehicle engine also includes a power intake air volume. On the premise that the sum of the power intake air volume and the passenger intake air volume is not greater than the maximum intake air volume of the vehicle engine per unit time, calculate the passenger fuel consumption required by the vehicle engine per unit time according to the passenger intake air volume;

[0018] A seat optimal temperature calculation module, configured to supplement additional passenger fuel and passenger intake air to the vehicle engine for combustion to obtain the passenger calorific value, and calculate the optimal seat temperature of the seat where the passenger is located according to the passenger weight of the passenger;

[0019] A heat transfer rate calculation module, configured to use the body temperature measuring device to measure the current body temperature of the passenger, and calculate the heat transfer rate at which the passenger calorific value is conducted to the seat based on the current body temperature;

[0020] A heat conduction module is used to conduct the heat generated by the occupant to the seat where the occupant is located according to the heat transfer rate, and monitor the real-time temperature of the seat to obtain the real-time seat temperature until the difference between the real-time seat temperature and the optimal seat temperature is within the preset temperature difference range, thereby completing the intelligent control of the car seat temperature.

[0021] Compared with the prior art, after receiving the seat temperature increase instruction initiated by the occupant, the present application uses a pressure sensor in the seat to obtain the occupant's sitting weight, and calculates the intake air volume of the car engine per unit time according to a preset calculation formula and the sitting weight. On the premise that the sum of the power intake air volume and the sitting intake air volume is not greater than the maximum intake air volume of the car engine per unit time, the sitting fuel volume required by the car engine per unit time is calculated according to the sitting intake air volume. It can be seen that in the embodiment of the present invention, after receiving the seat temperature increase instruction, the seat temperature is not directly increased by using the electric energy stored in the car, but the sitting weight of the occupant is first sensed, and the sitting fuel volume used to increase the seat temperature is determined according to the sitting weight of the occupant. It should be noted that occupants of different weights have different perceptions of temperature. Generally, occupants with a higher weight are more afraid of heat and more tolerant of cold, while occupants with a lower weight are more heat-tolerant and afraid of cold. Therefore, the main purpose of the embodiment of the present invention is to adaptively adjust the seat temperature according to the weight difference of the occupants. Further, an additional supply of sitting fuel volume and sitting intake air volume is sent to the car engine for combustion to obtain the heat generated by the occupant. According to the sitting weight of the occupant, the optimal seat temperature of the seat where the occupant is located is calculated. The current body temperature of the occupant is measured by the body temperature measuring device, and the heat transfer rate at which the heat generated by the occupant is conducted to the seat is calculated based on the current body temperature. It should be noted that the magnitude of the heat transfer rate directly determines the speed of heat transfer from the heat generated by the occupant to the seat. When the current body temperature of the occupant is relatively small compared to the optimal seat temperature, the corresponding heat transfer rate is also relatively small. When the current body temperature of the occupant is relatively large compared to the optimal seat temperature, it means that the temperature difference of the occupant is too large, so the corresponding heat transfer rate also becomes larger, thereby helping the occupant to recover to the optimal body temperature faster. Therefore, the intelligent control method and system for car seat temperature based on the occupant's weight provided by the embodiment of the present invention can improve the technical solution of seat heat transfer intelligence while ensuring driving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] By describing the embodiments of the present application in more detail in conjunction with the drawings, the above and other objects, features, and advantages of the present application will become more obvious. The drawings are used to provide a further understanding of the embodiments of the present application, and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation to the present application. In the drawings, the same reference numerals generally represent the same components or steps.

[0023] Figure 1 Flowchart of an intelligent control method for realizing the temperature of an automotive seat based on the weight of an occupant according to an embodiment of the present application.

[0024] Figure 2 Flowchart of one of the steps in the intelligent control method for realizing the temperature of an automotive seat based on the weight of an occupant according to an embodiment of the present application.

[0025] Figure 3 Flowchart of another step in the intelligent control method for realizing the temperature of an automotive seat based on the weight of an occupant according to an embodiment of the present application.

[0026] Figure 4 Block diagram of an intelligent control system for realizing the temperature of an automotive seat based on the weight of an occupant according to an embodiment of the present application. Detailed implementation manners

[0027] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0028] An embodiment of the present application provides an intelligent control method for realizing the temperature of an automotive seat based on the weight of an occupant. The execution subject of the intelligent control method for realizing the temperature of an automotive seat based on the weight of an occupant includes, but is not limited to, at least one of electronic devices such as a server, a terminal, etc. that can be configured to execute the method provided in the embodiment of the present application. In other words, the intelligent control method for realizing the temperature of an automotive seat based on the weight of an occupant can be executed by software or hardware installed on a terminal device or a server device. The server includes, but is not limited to: a single server, a server cluster, a cloud server, or a cloud server cluster, etc.

[0029] Embodiment:

[0030] Refer to Figure 1 As shown, it is a schematic flowchart of an intelligent control method for realizing the temperature of an automotive seat based on the weight of an occupant provided by an embodiment of the present invention. In this embodiment, the intelligent control method for realizing the temperature of an automotive seat based on the weight of an occupant includes:

[0031] S1. Receive a seat temperature increase instruction initiated by an occupant, and start a pressure sensor and a body temperature measurer of the seat where the occupant is located according to the seat temperature increase instruction. Among them, the heat required to increase the seat temperature is supplied by the vehicle engine;

[0032] It can be explained that the seat temperature control instruction in the embodiment of the present invention is generally initiated by a vehicle driver or a passenger. Exemplarily, when Xiao Zhang drives a car in the severe winter, after starting the car, Xiao Zhang wants to quickly increase his body temperature, so as to prevent distraction caused by being too cold and thus affect driving safety.

[0033] Obviously, the fastest way to increase the body temperature is mainly to increase the temperature inside the vehicle or the temperature of the seat. In the embodiments of the present invention, its main purpose is to intelligently control the seat temperature in combination with the weight of the occupant, so as to ensure the efficient utilization of the heat generated by the automobile engine and prevent the waste of thermal energy resources.

[0034] It can be understood that the automobile engine is the power and heat supply source of fuel vehicles, hybrid vehicles, etc. Therefore, generally, the heat of the seat temperature is also supplied by the automobile engine.

[0035] It should be explained that in the embodiments of the present invention, the seat where the occupant is located includes a pressure sensor. The main function of the pressure sensor is to sense the weight of the occupant and then increase the seat temperature according to the weight of the occupant. Because existing research has confirmed that occupants of different weights have different perceptions of temperature. Generally, occupants with a high weight are afraid of heat and tolerant of cold, while occupants with a low weight are heat-resistant and afraid of cold. Therefore, when the occupant issues a seat temperature increase command, the embodiments of the present invention adaptively adjust the seat temperature according to the weight difference of the occupant.

[0036] In addition, in the embodiments of the present invention, the seat where the occupant is located also includes a body temperature measurer. The main purpose of the body temperature measurer is to measure the current temperature of the occupant, so as to determine the heat transfer rate of the subsequent engine supplying heat to the seat according to the current temperature.

[0037] S2. Use the pressure sensor to obtain the sitting weight of the occupant, and calculate the intake air volume of the automobile engine per unit time according to a preset calculation formula and the sitting weight, wherein the automobile engine also includes a power intake air volume;

[0038] It should be explained that the main function of the engine compartment of the engine is to burn gasoline, diesel, natural gas, etc. to generate heat. Obviously, the combustion process requires the participation of oxygen, that is, air is added to help the combustion of gasoline, diesel, natural gas, etc. When the seat temperature is increased, according to the law of conservation of energy, it can be known that when the power of the automobile remains unchanged, additional air volume (i.e., intake air volume) and fuel need to be added.

[0039] Therefore, in detail, calculating the intake air volume of the automobile engine per unit time according to a preset calculation formula and the sitting weight includes:

[0040] Calculate the intake air volume of the automobile engine per unit time according to the following formula:

[0041]

[0042] where, l t represents the intake air volume of the automobile engine per unit time t cThe intake air volume for seating, where α and β respectively represent the first weight factor and the second weight factor, and q represents the seating weight.

[0043] It should be explained that the automobile engine also includes the power intake air volume. Especially during the operation of the automobile, in order to supply the power for the operation of the automobile, the automobile engine needs to inhale oxygen from the air to maintain the movement of the automobile. That is, the air volume used to maintain the movement of the automobile is the power intake air volume. And the air volume used to maintain the increase in the seat temperature is the intake air volume for seating.

[0044] S3. On the premise that the sum of the power intake air volume and the intake air volume for seating is not greater than the maximum intake air volume of the automobile engine per unit time, calculate the seating fuel quantity required by the automobile engine per unit time according to the intake air volume for seating;

[0045] It should be understood that the engine of any automobile corresponds to a maximum intake air volume. Therefore, if the automobile is running at a high speed at the current time point and the power intake air volume is already equal to the maximum intake air volume during high-speed operation, then at this time, it is impossible to generate additional heat to meet the demand for increasing the seat temperature, and only part of the heat used to supply power can be diverted for supply. That is, specifically, refer to Figure 2 As shown, before calculating the seating fuel quantity required by the automobile engine per unit time according to the intake air volume for seating, it also includes:

[0046] S31. Obtain the maximum intake air volume of the automobile engine per unit time;

[0047] S32. Judge the size relationship between the maximum intake air volume and the power intake air volume;

[0048] S33. If the maximum intake air volume is equal to the power intake air volume, extract the seating calorific value from the power heat generated according to the power intake air volume for supplying seat heating;

[0049] S34. If the maximum intake air volume is greater than the power intake air volume, calculate the sum of the power intake air volume and the intake air volume for seating to obtain the combined power and seating intake air volume;

[0050] S35. Judge the size relationship between the maximum intake air volume and the combined power and seating intake air volume;

[0051] S36. If the maximum intake air volume is less than the combined power and seating intake air volume, calculate the difference between the maximum intake air volume and the power intake air volume to obtain the available intake air volume, and calculate the seating fuel quantity according to the available intake air volume;

[0052] S37. If the maximum intake air volume is greater than or equal to the combined power and seating intake air volume, calculate the seating fuel quantity according to the intake air volume for seating.

[0053] For example, the maximum air intake of the car driven by Xiao Zhang is 5L, and through calculation, it is found that the power air intake of Xiao Zhang's car at the current moment is 4.9L, and the passenger air intake requires 0.2L. It can be seen that the passenger air intake and the power air intake total 5.1L, which is obviously greater than the maximum air intake of 5L. Therefore, in this case, only the difference between the maximum air intake and the power air intake can be calculated, and this difference is the air intake used to calculate the passenger fuel amount.

[0054] In addition, there are situations where the car is running at full speed at the current moment, that is, the maximum air intake is equal to the power air intake. In this case, since the car engine can no longer provide additional heat to increase the seat temperature, the only thing that can be extracted from the power heat generated by the power air intake is the riding heat generated to supply seat heating.

[0055] S4, additionally supplying the passenger fuel and the passenger air intake to the automobile engine for combustion to obtain the passenger heat value;

[0056] For details, see Figure 3 As shown, the additional fuel and air intake are supplied to the automobile engine for combustion to obtain the calorific value of the passenger car, including:

[0057] S41, opening the fuel control valve of the automobile engine, and delivering the fuel to the reaction chamber of the automobile engine through the fuel control valve, wherein the delivery amount of the fuel is equal to the amount of the fuel; and

[0058] S42, receiving the set air temperature, and starting the compressor that is linked to the automobile engine;

[0059] S43, collecting air with a compressor and compressing the air to obtain compressed air, wherein the volume of the compressed air is the same as the air intake volume of the passenger vehicle, and the temperature of the compressed air is the same as the set air temperature;

[0060] S44, the compressed air is delivered to a reaction chamber, and the compressed air is used to ignite the fuel in the reaction chamber, and the heat generated by the fuel is continuously collected during the combustion of the fuel.

[0061] It should be explained that the automobile engine is the heat source of the embodiment of the present invention. The riding heat value used to increase the seat temperature can be generated by burning fuel in the automobile engine. However, it is understandable that the riding heat value generated by the automobile engine should meet the preset range, that is, the difference between the theoretical heat value and the riding heat value should meet the preset range. If the difference between the theoretical heat value and the riding heat value is too large, it may be due to problems such as damage to the automobile engine or fuel quality. At this time, when continuously collecting the riding heat value, relevant warning reminders need to be issued.

[0062] In detail, the method of continuously collecting the heat generated by the vehicle during the fuel combustion process includes:

[0063] Calculate the theoretical calorific value obtained from fuel combustion at the current moment;

[0064] Calculate the difference between the collected calorific value of the ride and the theoretical calorific value, and determine whether the difference between the calorific value of the ride and the theoretical calorific value is within a preset calorific value difference range;

[0065] If the difference between the calorific value of the ride and the theoretical calorific value is within the calorific value difference range, continuously burn the fuel and collect the calorific value of the ride;

[0066] If the difference between the calorific value of the ride and the theoretical calorific value is not within the calorific value difference range, while continuously collecting the calorific value of the ride, send out a calorific value collection abnormality prompt instruction, and send the calorific value collection abnormality prompt instruction to the initiator of the seat temperature increase instruction.

[0067] Exemplarily, after the above-mentioned Xiao Zhang initiates the seat temperature increase instruction, the car engine starts to burn heat to generate the calorific value of the ride for raising the seat temperature. Assume that the calorific value of the ride required per second is 10 J, but it is calculated that at the current moment, the theoretical calorific value of the fuel transmitted through combustion should be 30 J. Considering the heat dissipation in a timely manner, the calorific value difference range should be [0, 10 J], but at this time, the difference between the calorific value of the ride of 10 J and the theoretical calorific value of 30 J is 20 J. Obviously, the difference between the calorific value of the ride and the theoretical calorific value is not within the calorific value difference range. Therefore, in order to prevent car safety accidents, it is necessary to send out a calorific value collection abnormality prompt instruction in a timely manner.

[0068] Further, the calculation of the theoretical calorific value obtained from fuel combustion at the current moment includes:

[0069] Calculate the theoretical calorific value according to the following formula:

[0070]

[0071] Wherein, represents the theoretical calorific value obtained from fuel combustion at the current moment t now under, The specific enthalpy of the fuel at time t now of, represents the specific enthalpy of the compressed air at time t now of, represents the specific enthalpy of the exhaust gas obtained from the combustion of the fuel and the compressed air at the current moment t now under, q f represents the combustion mass of the fuel at the current moment t now of, q 0 represents the air mass of the compressed air at time t now of, q g represents the air mass of the exhaust gas at time t nowthe exhaust gas quality.

[0072] It should be explained that the specific enthalpy refers to the enthalpy of a unit mass of substance. Exemplarily, an increase in the specific enthalpy of compressed air indicates that the compressed air obtains additional heat. Correspondingly, a decrease in the specific enthalpy of compressed air indicates that the compressed air loses heat. Therefore, the specific enthalpy of the above fuel + air = exhaust gas + theoretical calorific value.

[0073] S5. Calculate the optimal seat temperature of the seat where the occupant is located according to the occupant's sitting weight;

[0074] Specifically, the calculating the optimal seat temperature of the seat where the occupant is located according to the occupant's sitting weight includes:

[0075] Calculate the optimal seat temperature according to the following formula:

[0076]

[0077] where, T opt represents the optimal seat temperature of the seat where the occupant is located, q 1 represents the set minimum sitting weight, q u represents the occupant's sitting weight, and the occupant's sitting weight is greater than the minimum sitting weight, τ is the weight factor of the optimal seat temperature calculation formula, represents the integral function of the sitting weight, and γ is the weight factor of the integral function of the sitting weight.

[0078] S6. Use the body temperature measuring device to measure the current body temperature of the occupant, and calculate the heat transfer rate at which the sitting calorific value is conducted to the seat based on the current body temperature;

[0079] It should be explained that the current body temperature of the occupant has a direct impact on the rate of increase in the seat temperature. Exemplarily, when Xiao Zhang enters the car, the skin body temperature is 32 degrees. It can be seen that there is a large temperature difference between Xiao Zhang and the normal human body temperature. Therefore, in order to quickly increase Xiao Zhang's skin temperature, it is reasonable to increase the heat transfer rate at which the sitting calorific value is conducted to the seat.

[0080] Specifically, the calculating the heat transfer rate at which the sitting calorific value is conducted to the seat based on the current body temperature includes:

[0081] Access the body temperature storage database, where the historical body temperature data of the occupant is stored;

[0082] Obtain the minimum body temperature and the maximum body temperature of the occupant from the historical body temperature data;

[0083] Obtain the minimum heat transfer rate and the maximum heat transfer rate at which the sitting calorific value is conducted to the seat;

[0084] Based on the minimum heat transfer rate, the maximum heat transfer rate, the lowest body temperature, and the highest body temperature, construct a function of the relationship between body temperature and heat transfer rate;

[0085] Take the current body temperature as the independent variable of the function of the relationship between body temperature and heat transfer rate, and calculate the heat transfer rate at which the heat generated by the ride is conducted to the seat.

[0086] Furthermore, the function of the relationship between body temperature and heat transfer rate is:

[0087]

[0088] where v(t) represents the function of the relationship between body temperature and heat transfer rate, t represents the body temperature variable, ψ represents the weighting factor of the function of the relationship between body temperature and heat transfer rate, v min and v max represent the minimum heat transfer rate and the maximum heat transfer rate at which the heat generated by the ride is conducted to the seat, t min and t max represent the lowest body temperature and the highest body temperature of the rider.

[0089] It can be understood that according to the above calculation method, the heat transfer rate corresponding to the current body temperature of the rider can be calculated. Compared with the traditional method, the traditional method generally uses manual adjustment of the heat transfer rate or a fixed heat transfer rate. Although the form of manual adjustment or fixed heat transfer rate can also achieve automatic increase of the seat temperature, when the rider is a driver, it is conceivable that adjusting the heat transfer rate while driving a car will distract the driver's attention, thus increasing the driving risk. And the intelligence of the fixed heat transfer rate is relatively low. Fixing too high a heat transfer rate will cause excessive waste of resources, and too low a heat transfer rate will also affect the timely rise of the seat temperature. Therefore, generally speaking, through the method described in the embodiments of the present invention, the heat transfer rate can be calculated according to the temperature state of the rider, so as to improve the heat transfer intelligence while ensuring driving safety.

[0090] S7. Conduct the heat generated by the ride to the seat where the rider is located according to the heat transfer rate, and monitor the real-time temperature of the seat to obtain the real-time seat temperature;

[0091] Exemplarily, when Zhang enters the car, his current body temperature is 32 degrees. Therefore, substitute t = 32 into the above function of the relationship between body temperature and heat transfer rate to calculate the corresponding heat transfer rate. Further, according to the heat transfer rate, conduct the heat generated by the ride to the seat where the rider is located. And it can be understood that the higher the heat transfer rate, that is, the higher the working power of the relevant machine used to execute heat transfer, so as to ensure the execution of heat transfer at a faster speed.

[0092] S8. Until the difference between the real-time seat temperature and the optimal seat temperature is within the preset temperature difference range, complete the intelligent control of the car seat temperature.

[0093] In addition, while conducting the sitting heat generation to the seat where the occupant is located, the real-time temperature of the seat is also monitored, and it is determined whether the difference between the real-time temperature of the seat and the optimal seat temperature is within the preset temperature difference range. If the difference between the real-time temperature of the seat and the optimal seat temperature is not within the preset temperature difference range, the sitting heat generation is continuously conducted to the seat where the occupant is located. If the difference between the real-time temperature of the seat and the optimal seat temperature is already within the preset temperature difference range, the heat transfer rate can be appropriately reduced to maintain the stability of the real-time temperature of the seat.

[0094] Compared with the prior art, after receiving the seat temperature increase instruction initiated by the occupant, the present application uses the pressure sensor in the seat to obtain the sitting weight of the occupant, and calculates the intake air volume of the vehicle engine per unit time according to the preset calculation formula and the sitting weight. On the premise that the sum of the power intake air volume and the sitting intake air volume is not greater than the maximum intake air volume of the vehicle engine per unit time, the sitting fuel volume required by the vehicle engine per unit time is calculated according to the sitting intake air volume. It can be seen that in the embodiment of the present invention, after receiving the seat temperature increase instruction, the seat temperature is not directly increased by using the electric energy stored in the vehicle, but the sitting weight of the occupant is first sensed, and the sitting fuel volume used to increase the seat temperature is determined according to the sitting weight of the occupant. It should be noted that occupants with different weights have different sensitivities to temperature. Generally, occupants with higher weights are more afraid of heat and more tolerant of cold, while occupants with lower weights are more heat-tolerant and more afraid of cold. Therefore, the main purpose of the embodiment of the present invention is to adaptively adjust the seat temperature according to the weight difference of the occupants. Further, an additional supply of sitting fuel volume and sitting intake air volume is sent to the vehicle engine for combustion to obtain the sitting heat generation. According to the sitting weight of the occupant, the optimal seat temperature of the seat where the occupant is located is calculated. The current body temperature of the occupant is measured by the body temperature measuring device, and the heat transfer rate of the sitting heat generation conducted to the seat is calculated based on the current body temperature. It should be noted that the magnitude of the heat transfer rate directly determines the speed of the transmission of the sitting heat generation to the seat. When the current body temperature of the occupant is relatively small compared to the optimal seat temperature, the corresponding heat transfer rate is also relatively small. When the current body temperature of the occupant is relatively large compared to the optimal seat temperature, it means that the temperature difference of the occupant is too large, so the corresponding heat transfer rate also becomes larger, thereby helping the occupant to recover to the optimal body temperature faster. Therefore, an intelligent control method and system for realizing the temperature of a vehicle seat based on the weight of an occupant provided by the embodiment of the present invention can improve the intelligent heat transfer of the seat while ensuring driving safety.

[0095] Exemplary System

[0096] Figure 4 is a block diagram of an intelligent control system for realizing the temperature of a vehicle seat based on the weight of an occupant according to an embodiment of the present application. As Figure 4As shown, the intelligent control system 100 for realizing the temperature of an automotive seat based on the weight of an occupant according to an embodiment of the present application includes: a temperature increase instruction receiving module 110, configured to receive a seat temperature increase instruction initiated by the occupant, and start a pressure sensor and a body temperature measurer of the seat where the occupant is located according to the seat temperature increase instruction, wherein the heat required to increase the seat temperature is supplied by the automotive engine; a ride fuel consumption calculation module 120, configured to obtain the ride weight of the occupant by using the pressure sensor, and calculate the ride intake air volume of the automotive engine per unit time according to a preset calculation formula and the ride weight, wherein the automotive engine further includes a power intake air volume, and on the premise that the sum of the power intake air volume and the ride intake air volume is not greater than the maximum intake air volume of the automotive engine per unit time, calculate the ride fuel volume required by the automotive engine per unit time according to the ride intake air volume; a seat optimal temperature calculation module 130, configured to additionally supply the ride fuel volume and the ride intake air volume to the automotive engine for combustion to obtain the ride calorific value, and calculate the optimal temperature of the seat where the occupant is located according to the ride weight of the occupant; a heat transfer rate calculation module 140, configured to measure the current body temperature of the occupant by using the body temperature measurer, and calculate the heat transfer rate at which the ride calorific value is conducted to the seat based on the current body temperature; and a heat conduction module 150, configured to conduct the ride calorific value to the seat where the occupant is located according to the heat transfer rate, and monitor the real-time temperature of the seat to obtain the real-time seat temperature, until the difference between the real-time seat temperature and the optimal seat temperature is within a preset temperature difference range, thereby completing the intelligent control of the automotive seat temperature.

[0097] In one example, in the above intelligent control system 100 for realizing the temperature of an automotive seat based on the weight of an occupant, the calculating the ride intake air volume of the automotive engine per unit time according to a preset calculation formula and the ride weight includes:

[0098] Calculating the ride intake air volume of the automotive engine per unit time according to the following formula:

[0099]

[0100] wherein, l t represents the ride intake air volume of the automotive engine per unit time t c , α and β respectively represent a first weight factor and a second weight factor, and q represents the ride weight.

[0101] In one example, in the above intelligent control system 100 for realizing the temperature of an automotive seat based on the weight of an occupant, before calculating the ride fuel volume required by the automotive engine per unit time according to the ride intake air volume, it further includes:

[0102] Obtaining the maximum intake air volume of the automotive engine per unit time;

[0103] Determine the magnitude relationship between the maximum intake air volume and the power intake air volume. If the maximum intake air volume is equal to the power intake air volume, extract the sitting heat generation amount from the power heat generation amount generated according to the power intake air volume for supplying seat heating;

[0104] If the maximum intake air volume is greater than the power intake air volume, calculate the added value of the power intake air volume and the sitting intake air volume to obtain the combined power and sitting intake air volume;

[0105] Determine the magnitude relationship between the maximum intake air volume and the combined power and sitting intake air volume;

[0106] If the maximum intake air volume is less than the combined power and sitting intake air volume, calculate the difference between the maximum intake air volume and the power intake air volume to obtain the available intake air volume, and calculate the sitting fuel amount according to the available intake air volume;

[0107] If the maximum intake air volume is greater than or equal to the combined power and sitting intake air volume, calculate the sitting fuel amount according to the sitting intake air volume.

[0108] In one example, in the intelligent control system 100 for realizing the temperature of the vehicle seat based on the weight of the occupant, the additional supply of the sitting fuel amount and the sitting intake air volume to the vehicle engine for combustion to obtain the sitting heat generation amount includes:

[0109] Open the fuel control valve of the vehicle engine, and deliver the fuel to the reaction chamber of the vehicle engine through the fuel control valve, where the delivery amount of the fuel is equal to the sitting fuel amount; and

[0110] Receive the set air temperature and start the compressor having a linkage relationship with the vehicle engine;

[0111] Use the compressor to collect air and compress the air to obtain compressed air, where the volume of the compressed air is the same as the sitting intake air volume, and the temperature of the compressed air is the same as the set air temperature;

[0112] Deliver the compressed air to the reaction chamber, and use the compressed air to ignite the fuel in the reaction chamber, and continuously collect the sitting heat generation amount during the fuel combustion process.

[0113] In one example, in the intelligent control system 100 for realizing the temperature of the vehicle seat based on the weight of the occupant, the continuously collecting the sitting heat generation amount during the fuel combustion process includes:

[0114] Calculate the theoretical heat generation amount obtained from the fuel combustion at the current moment;

[0115] Calculate the difference between the collected sitting heat generation amount and the theoretical heat generation amount, and determine whether the difference between the sitting heat generation amount and the theoretical heat generation amount is within a preset heat difference range;

[0116] If the difference between the calorific value of the ride and the theoretical calorific value is within the calorific value difference range, continuously burn the fuel and collect the calorific value of the ride;

[0117] If the difference between the calorific value of the ride and the theoretical calorific value is not within the calorific value difference range, while continuously collecting the calorific value of the ride, send a heat collection abnormal prompt instruction, and send the heat collection abnormal prompt instruction to the initiator of the seat temperature increase instruction.

[0118] In one example, in the intelligent control system 100 for realizing the temperature of an automotive seat based on the weight of the occupant, the calculation of the theoretical calorific value obtained by fuel combustion at the current moment includes:

[0119] The theoretical calorific value is calculated according to the following formula:

[0120]

[0121] Wherein, represents the theoretical calorific value obtained by fuel combustion at the current moment t now below, the specific enthalpy of the fuel at time t now ; represents the specific enthalpy of the compressed air at time t now ; represents the specific enthalpy of the exhaust gas obtained by the combustion of the fuel and the compressed air at the current moment t now below, q f represents the combustion mass of the fuel at the current moment t now ; q 0 represents the air mass of the compressed air at time t now ; q g represents the exhaust gas mass of the exhaust gas at time t now .

[0122] In one example, in the intelligent control system 100 for realizing the temperature of an automotive seat based on the weight of the occupant, the calculation of the optimal seat temperature of the seat where the occupant is located according to the riding weight of the occupant includes:

[0123] The optimal seat temperature is calculated according to the following formula:

[0124]

[0125] Wherein, T opt represents the optimal seat temperature of the seat where the occupant is located, q 1 represents the set minimum riding weight, q u represents the riding weight of the occupant, and the riding weight of the occupant is greater than the minimum riding weight, and τ is the weight factor of the optimal seat temperature calculation formula, Represents the integral function of the riding weight, and γ is the weight factor of the integral function of the riding weight.

[0126] In one example, in the intelligent control system 100 for realizing the temperature of the vehicle seat based on the rider's weight, calculating the heat transfer rate at which the heat generated by riding is conducted to the seat based on the current body temperature includes:

[0127] Access the body temperature storage database, where the historical body temperature data of the rider is stored;

[0128] Obtain the lowest body temperature and the highest body temperature of the rider from the historical body temperature data;

[0129] Obtain the minimum heat transfer rate and the maximum heat transfer rate at which the heat generated by riding is conducted to the seat;

[0130] Based on the minimum heat transfer rate, the maximum heat transfer rate, the lowest body temperature, and the highest body temperature, construct a relationship function between body temperature and heat transfer rate;

[0131] Take the current body temperature as the independent variable of the relationship function between body temperature and heat transfer rate, and calculate the heat transfer rate at which the heat generated by riding is conducted to the seat.

[0132] In one example, in the intelligent control system 100 for realizing the temperature of the vehicle seat based on the rider's weight, the relationship function between body temperature and heat transfer rate is:

[0133]

[0134] where v(t) represents the relationship function between body temperature and heat transfer rate, t represents the body temperature variable, ψ represents the weight factor of the relationship function between body temperature and heat transfer rate, v min and v max represent the minimum heat transfer rate and the maximum heat transfer rate at which the heat generated by riding is conducted to the seat, t min and t max represent the lowest body temperature and the highest body temperature of the rider.

[0135] Here, those skilled in the art can understand that the specific functions and operations of each unit and module in the intelligent control system 100 for realizing the temperature of the vehicle seat based on the rider's weight have been described in detail above with reference to Figures 1 to 4 the description of the intelligent control method for realizing the temperature of the vehicle seat based on the rider's weight, and therefore, the repeated description thereof will be omitted.

[0136] The basic principles of the present application have been described in conjunction with specific embodiments. However, it should be noted that the advantages, benefits, effects, etc. mentioned in the present application are merely examples and not limitations. It cannot be considered that these advantages, benefits, effects, etc. are essential for each embodiment of the present application. Additionally, the specific details disclosed above are for illustrative and facilitative purposes only, not limitations. These details do not limit the present application to necessarily implementing with the above specific details.

[0137] The block diagrams of the devices, apparatuses, equipment, and systems involved in the present application are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as "including", "comprising", "having", etc. are open-ended terms, meaning "including but not limited to", and can be used interchangeably with each other. The word "or" and "and" used herein refer to the phrase "and / or", and can be used interchangeably with it, unless the context clearly indicates otherwise. The word "such as" used herein refers to the phrase "such as but not limited to", and can be used interchangeably with it.

[0138] It should also be noted that in the devices, equipment, and methods of the present application, each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent solutions of the present application.

[0139] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

[0140] The above description has been given for purposes of illustration and description. Additionally, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions, and sub-combinations thereof.

Claims

1. An intelligent control method for car seat temperature based on passenger weight, It is characterized in that include: receiving a seat temperature increase instruction initiated by an occupant, and activating a pressure sensor and a body temperature measuring device of the seat where the occupant is located according to the seat temperature increase instruction, wherein the heat required to increase the seat temperature is supplied by the vehicle engine; The pressure sensor is used to obtain the passenger's weight, and the passenger intake volume of the automobile engine per unit time is calculated according to a preset calculation formula and the passenger's weight, wherein the automobile engine also includes the power intake volume; Under the premise of ensuring that the sum of the power intake volume and the passenger intake volume is not greater than the maximum intake volume of the automobile engine per unit time, the passenger fuel volume required by the automobile engine per unit time is calculated according to the passenger intake volume; Additional fuel and air intake are supplied to the vehicle engine for combustion to obtain heating value; Calculating the optimal seat temperature of the seat where the occupant is located according to the occupant's weight; The body temperature measuring device is used to measure the current body temperature of the passenger, which is the skin temperature, and the heat transfer rate of the passenger's heat generated by the passenger to the seat is calculated based on the current body temperature; The heat generated by the passenger is transferred to the seat where the passenger is located according to the heat transfer rate, and the real-time temperature of the seat is monitored to obtain the real-time temperature of the seat; Until the difference between the real-time seat temperature and the optimal seat temperature is within the preset temperature difference range, the intelligent control of the car seat temperature is completed; The method of calculating the air intake volume of the vehicle engine per unit time according to a preset calculation formula and the weight of the passengers comprises: The air intake volume of the automobile engine per unit time can be calculated according to the following formula: Among them, represents the intake air volume of the vehicle engine per unit time , and respectively represent the first weight factor and the second weight factor, represents the riding weight.

2. The intelligent control method for automobile seat temperature based on passenger weight according to claim 1, It is characterized in that The method further comprises: calculating the amount of fuel required by the automobile engine per unit time according to the amount of air intake; Get the maximum air intake volume of the automobile engine per unit time; Determine the relationship between the maximum air intake and the power air intake. If the maximum air intake is equal to the power air intake, extract the seat heat from the power heat generated by the power air intake to supply heat to the seat. If the maximum air intake is greater than the power air intake, calculate the sum of the power air intake and the riding air intake to get the riding air intake; Determining the relationship between the maximum air intake volume and the running air intake volume; If the maximum air intake is less than the power air intake, calculate the difference between the maximum air intake and the power air intake to get the available air intake, and calculate the fuel consumption based on the available air intake; If the maximum air intake volume is greater than or equal to the riding air intake volume, the riding fuel volume is calculated based on the riding air intake volume.

3. The intelligent control method for automobile seat temperature based on passenger weight according to claim 2, It is characterized in that The additional fuel and air intake are supplied to the automobile engine for combustion to obtain the heating value of the automobile, including: Opening a fuel control valve of the automobile engine, and delivering fuel to a reaction chamber of the automobile engine through the fuel control valve, wherein the delivered amount of fuel is equal to the amount of fuel; and Receive the set air temperature and start the compressor that has an interlocking relationship with the vehicle engine; Use the compressor to collect air and compress the air to obtain compressed air, where the volume of the compressed air is the same as the intake volume of the ride, and the temperature of the compressed air is the same as the set air temperature; Deliver the compressed air to the reaction chamber, and use the compressed air to ignite the fuel in the reaction chamber, and continuously collect the calorific value of the ride during the fuel combustion process.

4. The intelligent control method for realizing the temperature of the vehicle seat based on the weight of the occupant according to claim 3, wherein, The continuously collecting the calorific value of the ride during the fuel combustion process includes: Calculating the theoretical calorific value obtained from the fuel combustion at the current moment; Calculating the difference between the collected calorific value of the ride and the theoretical calorific value, and determining whether the difference between the calorific value of the ride and the theoretical calorific value is within a preset calorific value difference range; If the difference between the calorific value of the ride and the theoretical calorific value is within the calorific value difference range, continuously burn the fuel and collect the calorific value of the ride; If the difference between the calorific value of the ride and the theoretical calorific value is not within the calorific value difference range, while continuously collecting the calorific value of the ride, issue a heat collection abnormality prompt instruction and send the heat collection abnormality prompt instruction to the initiator of the seat temperature increase instruction.

5. The intelligent control method for realizing the temperature of the vehicle seat based on the weight of the occupant according to claim 4, wherein, The calculating the theoretical calorific value obtained from the fuel combustion at the current moment includes: Calculating the theoretical calorific value according to the following formula: Among them, represents the theoretical calorific value obtained from fuel combustion at the current moment ; is the specific enthalpy of the fuel at time ; represents the specific enthalpy of the compressed air at time ; represents the specific enthalpy of the exhaust gas obtained from the combustion of fuel and compressed air at the current moment ; represents the combustion mass of the fuel at the current moment ; represents the air mass of the compressed air at time ; represents the exhaust gas mass of the exhaust gas at time .

6. The intelligent control method for realizing the temperature of the vehicle seat based on the weight of the occupant according to claim 5, wherein, The calculating the optimal temperature of the seat where the occupant is located according to the riding weight of the occupant includes: Calculating the optimal temperature of the seat according to the following formula: Among them, represents the optimal seat temperature of the seat where the occupant is located, represents the set minimum occupancy weight, represents the occupancy weight of the occupant, and the occupancy weight of the occupant is greater than the minimum occupancy weight, is the weighting factor of the optimal seat temperature calculation formula, represents the integral function of the occupancy weight, is the weighting factor of the integral function of the occupancy weight.

7. The intelligent control method for realizing the temperature of the vehicle seat based on the weight of the occupant according to claim 6, wherein, The calculating the heat transfer rate at which the calorific value of the ride is conducted to the seat based on the current body temperature includes: Accessing the body temperature storage database, where the historical body temperature data of the occupant is stored in the body temperature storage database; Obtaining the lowest body temperature and the highest body temperature of the occupant from the historical body temperature data; Obtaining the minimum heat transfer rate and the maximum heat transfer rate at which the calorific value of the ride is conducted to the seat; Constructing a relationship function between body temperature and heat transfer rate based on the minimum heat transfer rate, the maximum heat transfer rate, the lowest body temperature and the highest body temperature; Taking the current body temperature as the independent variable of the relationship function between body temperature and heat transfer rate, and calculating the heat transfer rate at which the calorific value of the ride is conducted to the seat.

8. The intelligent control method for realizing the temperature of the vehicle seat based on the weight of the occupant according to claim 7, wherein, The relationship function between body temperature and heat transfer rate is: Among them, represents the function of the relationship between body temperature and heat transfer rate, represents the body temperature variable, represents the weighting factor of the function of the relationship between body temperature and heat transfer rate, and represents the minimum heat transfer rate and the maximum heat transfer rate at which the calorific value of the ride is conducted to the seat, and represents the lowest body temperature and the highest body temperature of the occupant.

9. An intelligent control system for realizing the temperature of the vehicle seat based on the weight of the occupant, wherein, It includes: A temperature increase instruction receiving module, configured to receive a seat temperature increase instruction initiated by an occupant, and start a pressure sensor and a body temperature measurer of the seat where the occupant is located according to the seat temperature increase instruction, wherein the heat required to increase the seat temperature is supplied by the vehicle engine; The passenger fuel consumption calculation module is used to obtain the passenger weight of the rider by using the pressure sensor, and calculate the passenger intake air volume of the vehicle engine per unit time according to a preset calculation formula and the passenger weight. Among them, the vehicle engine also includes a power intake air volume. On the premise that the sum of the power intake air volume and the passenger intake air volume does not exceed the maximum intake air volume of the vehicle engine per unit time, the passenger fuel consumption required by the vehicle engine per unit time is calculated according to the passenger intake air volume; The optimal seat temperature calculation module is used to additionally supply the passenger fuel consumption and the passenger intake air volume to the vehicle engine for combustion to obtain the passenger calorific value, and calculate the optimal seat temperature of the seat where the rider is located according to the passenger weight of the rider; The heat transfer rate calculation module is used to measure the current body temperature of the rider by using the body temperature measuring device, the current body temperature is the skin body temperature, and calculate the heat transfer rate at which the passenger calorific value is conducted to the seat based on the current body temperature; The heat conduction module is used to conduct the passenger calorific value to the seat where the rider is located according to the heat transfer rate, and monitor the real-time temperature of the seat to obtain the real-time seat temperature, until the difference between the real-time seat temperature and the optimal seat temperature is within the preset temperature difference range, and complete the intelligent control of the vehicle seat temperature; The passenger intake air volume of the vehicle engine per unit time is calculated according to the following formula: Among them, represents the intake air volume of the vehicle engine per unit time , and respectively represent the first weight factor and the second weight factor, represents the riding weight.

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