CN111216512A - Temperature correction method, device and equipment for vehicle-mounted multi-region air conditioner - Google Patents
Temperature correction method, device and equipment for vehicle-mounted multi-region air conditioner Download PDFInfo
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Abstract
The application discloses a temperature correction method, a device and equipment of a vehicle-mounted multi-area air conditioner, the method obtains real-time two-dimensional sunlight intensity information, angle information of each window and area information of each window under the internal environment of a vehicle, obtains a normal vector of each window by utilizing the longitude and latitude information of the vehicle, the angle information of each window and the area information of each window, determines the sunlight intensity of the external environment of the vehicle according to the real-time two-dimensional sunlight intensity information, obtains the sunlight power of each window based on the normal vector, real-time solar azimuth angle, real-time solar altitude angle of each window and the sunlight intensity analysis under the external environment of the vehicle, controls the vehicle-mounted multi-area air conditioner to carry out temperature correction according to the sunlight power of each window, and can realize the temperature correction of the vehicle-mounted multi-area air conditioner only through the sunlight intensity collection of a single two-dimensional sunlight sensor in the vehicle, the comfort of each subarea of the multi-area air conditioner is ensured.
Description
Technical Field
The invention relates to the field of air conditioner control, in particular to a temperature correction method, device and equipment for a vehicle-mounted multi-zone air conditioner.
Background
With the development of the automobile industry in China and the increasingly intense market environment, the requirements and experiences of consumers on the electrical functions of automobiles are higher and higher, and in the aspect of automobile air conditioners, multi-area air conditioners such as two-area air conditioners, three-area air conditioners, four-area air conditioners and the like are also provided by various automobile enterprises. The increase of the air conditioning partition also means the increase of hardware cost and software algorithm complexity. The influence of the sunlight intensity on each subarea is the problem to be solved by a multi-area air-conditioning automatic algorithm firstly, because the driving direction of a vehicle is flexible and changeable and the sun irradiation direction changes along with time, the influence of sunlight irradiation on different air-conditioning subareas in a passenger compartment of an automobile is changed all the time, and the automatic air-conditioning algorithm can ensure the comfort of each subarea of the multi-area air-conditioning by correcting the influence of the sunlight intensity of each subarea all the time.
In order to solve the problems, a three-dimensional sunlight sensor can be used, and real-time sunlight data can be provided for a multi-region air conditioning algorithm by utilizing the altitude angle, the azimuth angle and the sunlight intensity of the sunlight collected by the three-dimensional sunlight sensor at any moment. However, although the three-dimensional solar sensor can realize the control of the multi-zone air conditioner, the cost is much higher than that of the two-dimensional solar sensor, and the three-dimensional solar sensor needs to be developed to a greater extent.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the application provides a temperature correction method, a temperature correction device and temperature correction equipment of a vehicle-mounted multi-region air conditioner, and the function of temperature correction of the vehicle-mounted multi-region air conditioner according to the sunlight power of each window can be realized on the basis of a single two-dimensional sunlight sensor.
In order to achieve the purpose of the application, the application provides a temperature correction method of an on-board multi-zone air conditioner, which comprises the following steps:
acquiring real-time two-dimensional sunlight intensity information, angle information of each window and area information of each window under the internal environment of the vehicle, wherein the real-time two-dimensional sunlight intensity information is the sunlight intensity information acquired by a single two-dimensional sunlight sensor;
obtaining normal vectors of all windows by utilizing the longitude and latitude information of the vehicle, the angle information of all windows and the area information of all windows;
determining the sunlight intensity of the vehicle in the external environment according to the real-time two-dimensional sunlight intensity information;
analyzing and obtaining the sunlight power of each window based on the normal vector, the real-time solar azimuth angle and the real-time solar altitude angle of each window and the sunlight intensity of the external environment where the vehicle is located;
and controlling the vehicle-mounted multi-region air conditioner to correct the temperature according to the sunlight power of each vehicle window.
In another aspect, the present application further provides a temperature correction apparatus of an in-vehicle multi-zone air conditioner, the apparatus including:
the system comprises a signal acquisition module, a signal processing module and a control module, wherein the signal acquisition module is used for acquiring real-time two-dimensional sunlight intensity information, angle information of each window and area information of each window in the vehicle internal environment, and the real-time two-dimensional sunlight intensity information is the sunlight intensity information in the vehicle internal environment acquired by a single two-dimensional sunlight sensor;
the normal vector determining module is used for analyzing and obtaining the normal vector of each car window based on the angle information of each car window and the area information of each car window;
the sunlight intensity determining module is used for determining the sunlight intensity of the vehicle in the external environment according to the real-time two-dimensional sunlight intensity information;
the sunlight power determining module is used for analyzing and obtaining the sunlight power of each window based on the normal vector, the real-time solar azimuth angle and the real-time solar altitude angle of each window and the sunlight intensity of the external environment where the vehicle is located;
and the temperature correction module is used for controlling the vehicle-mounted multi-region air conditioner to correct the temperature according to the sunlight power of each vehicle window.
On the other hand, the application also provides a temperature correction device of the vehicle-mounted multi-zone air conditioner, the device comprises a processor and a memory, wherein at least one instruction or at least one program is stored in the memory, and the at least one instruction or the at least one program is loaded and executed by the processor to realize the temperature correction method of the vehicle-mounted multi-zone air conditioner.
The application has the following beneficial effects:
the method obtains the normal vector of each window by obtaining the real-time two-dimensional sunlight intensity information, the angle information of each window and the area information of each window under the internal environment of the vehicle and utilizing the longitude and latitude information of the vehicle, the angle information of each window and the area information of each window, determining the sunlight intensity of the vehicle in the external environment according to the real-time two-dimensional sunlight intensity information, analyzing the sunlight power of each window based on the normal vector, the real-time solar azimuth angle and the real-time solar altitude angle of each window and the sunlight intensity of the vehicle in the external environment, the vehicle-mounted multi-region air conditioner is controlled to carry out temperature correction according to the sunlight power of each window, the function that the vehicle-mounted partition air conditioner carries out temperature correction according to the sunlight power of each window on the basis of a single two-dimensional sunlight sensor can be realized, and the problem that the partition control of the vehicle-mounted partition air conditioner cannot be realized by the single two-dimensional sunlight sensor is solved.
Drawings
In order to more clearly illustrate the method, device, apparatus and medium for correcting temperature of an on-board multi-zone air conditioner according to the present application, the following figures required for the embodiments will be briefly introduced, it is obvious that the figures in the following description are only some embodiments of the present invention, and other figures can be obtained by those skilled in the art without inventive efforts.
Fig. 1 is a schematic diagram of an application environment provided in an embodiment of the present application;
FIG. 2 is a flowchart illustrating an implementation of temperature correction for a vehicle-mounted multi-zone air conditioner according to an embodiment of the present disclosure;
fig. 3 is a schematic reference coordinate diagram in a process of solving normal vectors of windows according to an embodiment of the present application;
FIG. 4 is a schematic diagram of the start coordinates of a vehicle during a small driving time approaching infinity provided by an embodiment of the present application;
FIG. 5 is a schematic diagram illustrating the areas and angles of windows of a vehicle according to an embodiment of the present disclosure;
fig. 6 is a flowchart illustrating a temperature correction performed by controlling an on-vehicle multi-zone air conditioner according to a solar power of each window according to an embodiment of the present disclosure;
FIG. 7 is a flowchart illustrating an implementation of temperature correction for a vehicle-mounted multi-zone air conditioner according to another embodiment of the present disclosure;
FIG. 8 is a flowchart illustrating an implementation of temperature correction for a vehicle-mounted multi-zone air conditioner according to another embodiment of the present disclosure;
fig. 9 is a schematic view illustrating a temperature correction device of a vehicle-mounted multi-zone air conditioner according to another embodiment of the present application.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or server that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In order to implement the technical solution of the present application, so that more engineering workers can easily understand and apply the present application, the working principle of the present application will be further described with reference to specific embodiments.
The temperature correction method and the temperature correction device can be applied to the field of automobile air conditioners, and particularly can be applied to the field of temperature correction of vehicle-mounted multi-region air conditioners.
Referring to fig. 1, fig. 1 is a schematic diagram of an application environment according to an embodiment of the present disclosure, and as shown in fig. 1, the application environment at least includes an on-vehicle multi-zone air conditioner 01, a single two-dimensional solar light sensor 02, and a controller 03. The vehicle-mounted multi-zone air conditioner 01 can be used for adjusting the temperature of corresponding zones around each window in the vehicle, and comprises two-zone air conditioners, three-zone air conditioners, four-zone air conditioners and other multi-zone air conditioners. A single two-dimensional solar sensor 02 is used to collect the solar intensity at a single point. The controller 03 is connected with the vehicle-mounted multi-zone air conditioner 01, and meanwhile temperature correction of different zones of the vehicle-mounted multi-zone air conditioner 01 can be obtained through analysis according to the obtained information, so that the vehicle-mounted multi-zone air conditioner 01 is controlled to output. The controller 03 may acquire information by being connected to the in-vehicle terminal, or by being directly connected to the single two-dimensional solar sensor 02, or by being connected to the in-vehicle terminal and the single two-dimensional solar sensor 02.
In the above application scenario, an embodiment of a temperature correction method for a vehicle-mounted multi-zone air conditioner according to the present application is first introduced, fig. 2 is a flowchart illustrating an implementation of temperature correction for a vehicle-mounted multi-zone air conditioner according to the present application, and as shown in fig. 2, the method includes:
s101: the controller of the vehicle acquires real-time two-dimensional sunlight intensity information, angle information of each window and area information of each window under the internal environment of the vehicle.
Specifically, the real-time two-dimensional solar light intensity information may include single-point solar light intensity information of the interior of the vehicle collected by a single two-dimensional solar light sensor. The angle information of each window refers to the degree of an acute inclination angle formed by each window and a horizontal plane.
S103: and the controller obtains the normal vector of each window by utilizing the longitude and latitude information of the vehicle, the angle information of each window and the area information of each window.
In further embodiments, the controller analyzing the normal vector of each window based on the angle information of each window and the area information of each window may include:
s1031: the controller confirms whether the longitude and latitude information of the vehicle is effective or not.
The longitude and latitude information of the vehicle is collected by a navigation system, and the controller receives the collected longitude and latitude information and confirms whether the information is effective or not. The vehicle driving direction can be understood as a motion vector of the vehicle in a small period of time approaching infinity, and the motion vector of the vehicle is determined according to the longitude and latitude of the head and tail time point of the small period of time approaching infinity, so that the accuracy of solving the vehicle driving direction can be directly influenced by the effectiveness of the longitude and latitude information. When the longitude and latitude information cannot be updated in real time, the vehicle driving direction information obtained by the longitude and latitude information which cannot be updated in real time is unreliable. For example, when the vehicle is traveling in a mountainous area with poor signals, the currently received latitude and longitude information is information collected by a navigation system ten minutes ago, the traveling direction of the vehicle ten minutes ago may not be consistent with the current traveling direction, and the case where the latitude and longitude information is received with delay is the case where the latitude and longitude information is invalid.
S1033: when the controller confirms that the longitude and latitude information of the vehicle is effective, the driving direction of the vehicle can be obtained through solving according to the longitude and latitude information of the vehicle, and the included angle Ad between the driving direction of the vehicle and the south orientation is obtained.
In the process of solving the normal vector of each window, the normal vector of each window is solved by taking the vehicle as a center and first solving an included angle between the vehicle running direction and the true south direction according to a reference coordinate shown in fig. 3:
as shown in fig. 4, x1 is an abscissa of a start point in a small driving time segment approaching infinity, y1 is an ordinate of a start point in a small driving time segment approaching infinity, x2 is an abscissa of an end point in a small driving time segment approaching infinity, and y2 is an ordinate of an end point in a small driving time segment approaching infinity.
S1035: and the normal vector of each window can be obtained through the included angle between the vehicle running direction and the south direction, the area of each window and the angle of each window. As shown in fig. 5, when the area of the front windshield is a, the inclination angle of the front windshield to the horizontal plane is a, the area of the rear windshield is B, the inclination angle of the rear windshield to the horizontal plane is B, the area of the left window is C, the inclination angle of the left window is C, the area of the right window is D, the inclination angle of the right window is D, and the area of the ceiling is E, the normal vector of each window is shown in table 1.
TABLE 1
S105: the controller determines the sunlight intensity of the vehicle in the external environment according to the real-time two-dimensional sunlight intensity information.
The real-time two-dimensional sunlight intensity is the sunlight intensity inside the vehicle collected by a single two-dimensional sunlight sensor. And then the collected sunlight intensity in the vehicle is used for reversely deducing the sunlight intensity of the vehicle in the external environment, and the specific formula is as follows:
the sunlight intensity is the cosine of the sunlight intensity inside the vehicle collected by the two-dimensional sunlight sensor/the normal vector of the vehicle window provided with the two-dimensional sunlight sensor and the normal vector of the incident sunlight.
The two-dimensional solar sensor can be arranged below each window in the vehicle, and the two-dimensional solar sensor is arranged at different positions to influence the reverse-thrust calculation. The solar incident light normal vector can be solved by utilizing the real-time solar azimuth angle and the real-time solar altitude angle. Specifically, the normal vector of the window on which the two-dimensional solar sensor is mounted can be calculated by referring to the normal vector formula of each window in table 1. The solar azimuth is an included angle between the ground projection of the incident solar light and the preset direction, and the south-pointing direction is selected as the preset direction in the embodiment. The solar altitude is the included angle between the incident direction of sunlight and the ground plane, namely the included angle of the surface tangent plane of the incident point through which the sunlight passes and the center of the ground is connected.
S107: the controller obtains the sunlight power of each window based on the normal vector, the real-time solar azimuth angle and the real-time solar altitude angle of each window and the sunlight intensity analysis of the vehicle in the external environment.
Specifically, the sunlight intensity of each window can be solved based on the normal vector, the real-time solar azimuth angle and the real-time solar altitude angle of each window. And multiplying the sunlight intensity of each window by the corresponding area of each window to obtain the sunlight power of each window. The sunlight intensity of each window is the sunlight intensity after the sunlight is incident to each window, the sunlight intensity of each window is different due to different incident angles of the sunlight to each window, and the sunlight intensity of each window can be solved by utilizing the normal vector, the real-time solar azimuth angle and the real-time solar elevation angle of each window.
In further embodiments, if a shade is present for the vehicle, the method further comprises:
s1081: and acquiring opening information of the ceiling and the side window sunshade curtain.
Specifically, the opening degree information of the ceiling and side window blinds indicates the opening ratio of the ceiling and side window blinds. Under the sunlight, people sitting in the car can be sunned, and the ceiling and the sun-shading curtain play a good sun-shading role, but the brightness in the car can also be reduced. The comfort level of the vehicle occupant can be improved by opening or closing the roof and side window shades.
S1083: and determining the sunlight power of each window according to the normal vector, the sun azimuth angle and the sun altitude angle of each window, the sunlight intensity of the vehicle in the external environment and the opening information of the ceiling and the side window sunshade. And multiplying the sunlight intensity of each window by the area of each corresponding window which is not shielded by the sunshade curtain and multiplying the sunlight intensity of the ceiling by the area of the exposed roof to obtain the sunlight power of each window and the ceiling.
In further embodiments, the method further comprises:
s1091: and judging whether the vehicle is in a preset working condition or not according to the real-time two-dimensional sunlight intensity signal.
Specifically, the preset working condition is a working condition that sunlight has no influence on corresponding areas around each vehicle window, for example: the vehicle is in a tunnel or a bridge opening, and the sunlight intensity received by each position is balanced; when the vehicle runs at night, no sunlight is irradiated.
S1093: and when the vehicle is in a preset working condition, controlling the vehicle-mounted multi-zone air conditioner to correct the temperature according to the same sunlight power of each zone.
S1095: when the vehicle is not in the preset working condition, the controller controls the vehicle-mounted multi-area air conditioner to correct the temperature according to the sunlight power of each window.
S110: the controller controls the vehicle-mounted multi-region air conditioner to correct the temperature according to the sunlight power of each window.
The sunlight power of each window is different due to different angles between each window and incident light, and the controller adjusts the vehicle-mounted multi-region air conditioner to correct the temperature according to the sunlight power of each window. Different windows correspond to different vehicle-mounted air conditioners in vehicle-mounted multi-region air conditioners, for example, a vehicle-mounted air conditioner with the sunlight power of the left window corresponding to a driving position, a vehicle-mounted air conditioner with the sunlight power of the right window corresponding to a secondary driving position, a vehicle-mounted air conditioner with the sunlight power of the front windshield corresponding to a position between the driving position and the secondary driving position, and the like.
In another embodiment, as shown in fig. 6, controlling the in-vehicle multi-zone air conditioner to perform temperature correction according to the solar power of each window comprises:
s1101: and carrying out temperature correction on the temperature of the corresponding area around each window according to the sunlight power of each window to obtain the output temperature of the corresponding area.
S1103: and correcting the air conditioner in the corresponding area according to the output temperature for outputting.
According to the embodiment, the real-time two-dimensional sunlight intensity information, the angle information of each window and the area information of each window under the internal environment of the vehicle are obtained, the sunlight power of each window is obtained by utilizing the obtained information, the real-time solar azimuth angle and the real-time solar altitude angle, and the temperature of the vehicle-mounted multi-zone air conditioner is adjusted according to the sunlight power of each window, so that the temperature correction of the vehicle-mounted multi-zone air conditioner can be realized only through the sunlight intensity collection of a single two-dimensional sunlight sensor in the vehicle, and the comfort of each zone of the multi-zone air conditioner is ensured.
In another embodiment of the temperature correction method, as shown in fig. 7, the method further comprises:
s201: the real-time driving direction of the vehicle is stored.
Included angle between vehicle running direction and south direction
As shown in fig. 4, x1 is an abscissa of a start point in a small driving time segment approaching infinity, y1 is an ordinate of a start point in a small driving time segment approaching infinity, x2 is an abscissa of an end point in a small driving time segment approaching infinity, and y2 is an ordinate of an end point in a small driving time segment approaching infinity. The above formula is not applied to the case where x2 ≠ x1 and y2 ≠ y1, but is not applied to the case where x2 ═ x1 and y2 ≠ y 1.
S203: when the vehicle speed is zero, the vehicle running direction at the moment when the last vehicle speed is not zero is obtained when the vehicle speed is zero.
The zero vehicle speed is x 2-x 1 and y 2-y 1, which corresponds to a small driving time period approaching infinity, and the longitude and latitude of the vehicle are not changed. When the vehicle stops moving, the longitude and latitude of the head and tail time point which is a small period of infinitesimal time can not be used for determining. However, the vehicle is traveling before stopping, and the traveling direction when the vehicle is moving last before stopping may be the vehicle direction at the time when the vehicle speed is zero.
S205: and determining the sun azimuth angle and the sun altitude angle according to the time information, the longitude and latitude information of the vehicle and the vehicle running direction when the vehicle speed is not zero in the previous time period.
Specifically, the solar azimuth is an included angle between the ground projection of the incident solar light and the preset direction, and the south direction is selected as the preset direction in this embodiment. The solar altitude is the included angle between the incident direction of sunlight and the ground plane, namely the included angle of the surface tangent plane of the incident point through which the sunlight passes and the center of the ground is connected.
S207: the controller of the vehicle acquires real-time two-dimensional sunlight intensity information, angle information of each window and area information of each window under the internal environment of the vehicle.
The real-time two-dimensional sunlight intensity information is single-point sunlight intensity information inside the vehicle, which is acquired by a single two-dimensional sunlight sensor. The angle information of each window refers to the degree of an acute inclination angle formed by each window and a horizontal plane.
S209: and the controller analyzes and obtains the normal vector of each window based on the angle information of each window and the area information of each window.
The normal vector of each window is the same as that in table 1, and it should be noted that Ad is an included angle between the driving direction and the true south direction when the vehicle speed is not zero in the previous time period before the vehicle stops.
S211: the controller determines the sunlight intensity of the vehicle in the external environment according to the real-time two-dimensional sunlight intensity information.
The real-time two-dimensional sunlight intensity is the sunlight intensity inside the vehicle collected by a single two-dimensional sunlight sensor. And then the collected sunlight intensity in the vehicle is used for reversely deducing the sunlight intensity of the vehicle in the external environment, and the specific formula is as follows:
the sunlight intensity is the cosine of the sunlight intensity inside the vehicle collected by the two-dimensional sunlight sensor/the normal vector of the vehicle window provided with the two-dimensional sunlight sensor and the normal vector of the incident sunlight.
The two-dimensional solar sensor can be arranged below each window in the vehicle, and the two-dimensional solar sensor is arranged at different positions to influence the reverse-thrust calculation. The solar incident light normal vector can be solved by utilizing the real-time solar azimuth angle and the real-time solar altitude angle. Specifically, the normal vector of the window on which the two-dimensional solar sensor is mounted can be calculated by referring to the normal vector formula of each window in table 1.
S213: the controller obtains the sunlight power of each window based on the normal vector, the real-time solar azimuth angle and the real-time solar altitude angle of each window and the sunlight intensity analysis of the vehicle in the external environment.
Specifically, the sunlight intensity of each window can be solved based on the normal vector, the real-time solar azimuth angle and the real-time solar altitude angle of each window. And multiplying the sunlight intensity of each window by the corresponding area of each window to obtain the sunlight power of each window. The sunlight intensity of each window is the sunlight intensity after the sunlight is incident to each window, the sunlight intensity of each window is different due to different incident angles of the sunlight to each window, and the sunlight intensity of each window can be solved by utilizing the normal vector, the real-time solar azimuth angle and the real-time solar elevation angle of each window.
S215: the controller controls the vehicle-mounted multi-region air conditioner to correct the temperature according to the sunlight power of each window.
According to the embodiment, the sun azimuth angle and the sun altitude angle are determined by utilizing the vehicle running direction at the moment when the stored vehicle speed is not zero at the zero moment, then the normal vector of each window is obtained by solving the real-time two-dimensional sunlight intensity information, the angle information of each window and the area information of each window under the internal environment of the vehicle, the sunlight intensity of the vehicle under the external environment is determined according to the real-time two-dimensional sunlight intensity information, and finally the sunlight power of each window is determined according to the information, so that the temperature correction of a plurality of zones of the vehicle-mounted multi-zone air conditioner is carried out on the basis of the sunlight power of each window, the temperature correction of the vehicle-mounted multi-zone air conditioner can be realized only by collecting the sunlight intensity of a single two-dimensional sunlight sensor in the vehicle in the running state or the stopping state of.
In another embodiment of the temperature correction method, as shown in fig. 8, the method includes:
s301: the controller of the vehicle acquires real-time two-dimensional sunlight intensity information, angle information of each window and area information of each window under the internal environment of the vehicle.
The real-time two-dimensional sunlight intensity information is single-point sunlight intensity information inside the vehicle, which is acquired by a single two-dimensional sunlight sensor. The angle information of each window refers to the degree of an acute inclination angle formed by each window and a horizontal plane.
S3031: the controller acquires vehicle gradient information.
S3033: and when the vehicle gradient in the vehicle gradient information is zero, the controller determines the normal vector of each window according to the angle signal of each window and the area signal of each window.
S3035: and when the vehicle gradient is not zero, the controller analyzes and obtains a normal vector of each window based on the angle information of each window, the area information of each window and the vehicle gradient information.
The driving direction of the vehicle can be obtained through solving according to the longitude and latitude information, and an included angle Ad between the driving direction of the vehicle and the south-pointing direction is obtained.
In the process of solving the normal vector of each window, the normal vector of each window is solved by taking the vehicle as a center and first solving an included angle between the vehicle running direction and the true south direction according to a reference coordinate shown in fig. 3:
as shown in fig. 4, x1 is an abscissa of a start point in a small driving time segment approaching infinity, y1 is an ordinate of a start point in a small driving time segment approaching infinity, x2 is an abscissa of an end point in a small driving time segment approaching infinity, and y2 is an ordinate of an end point in a small driving time segment approaching infinity.
And the normal vector of each window can be obtained through the included angle between the driving direction of the vehicle and the south direction, the area information of each window, the angle information of each window and the gradient information of the vehicle. As shown in fig. 5, when the front windshield area is a, the angle of inclination of the front windshield to the horizontal plane is a, the rear windshield area is B, the angle of inclination of the rear windshield to the horizontal plane is B, the left window area is C, the left window angle of inclination C, the right window area is D, the right window angle of inclination D, the ceiling area is E, and the vehicle gradient is r, the normal vector of each window is shown in table 2.
TABLE 2
| Vehicle window item | Normal vector of each window |
| Front windshield | A(sin(a-r)*cosAd,-sin(a-r)*sinAd,cos(a-r)) |
| Rear windshield | B(-sin(b+r)*cosAd,sin(b+r)*sinAd,cos(b+r)) |
| Left side window | C(-sinc*cosAd,-sinc*sinAd,cosc) |
| Right side window | D(sind*cosAd,sind*sinAd,cosd) |
| Ceiling | E(sinrcosAd,sinrsinAd,cosr) |
S305: the controller determines the sunlight intensity of the vehicle in the external environment according to the real-time two-dimensional sunlight intensity information.
The real-time two-dimensional sunlight intensity is the sunlight intensity inside the vehicle collected by a single two-dimensional sunlight sensor. And then the collected sunlight intensity in the vehicle is used for reversely deducing the sunlight intensity of the vehicle in the external environment, and the specific formula is as follows:
the sunlight intensity is the cosine of the sunlight intensity inside the vehicle collected by the two-dimensional sunlight sensor/the normal vector of the vehicle window provided with the two-dimensional sunlight sensor and the normal vector of the incident sunlight.
The two-dimensional solar sensor can be arranged below each window in the vehicle, and the two-dimensional solar sensor is arranged at different positions to influence the reverse-thrust calculation. The solar incident light normal vector can be solved by utilizing the real-time solar azimuth angle and the real-time solar altitude angle. Specifically, the normal vector of the window on which the two-dimensional solar sensor is mounted can be calculated by referring to the normal vector formula of each window in table 1. The solar azimuth is an included angle between the ground projection of the incident solar light and the preset direction, and the south-pointing direction is selected as the preset direction in the embodiment. The solar altitude is the included angle between the incident direction of sunlight and the ground plane, namely the included angle of the surface tangent plane of the incident point through which the sunlight passes and the center of the ground is connected.
S307: the controller obtains the sunlight power of each window based on the normal vector, the real-time solar azimuth angle and the real-time solar altitude angle of each window and the sunlight intensity analysis of the vehicle in the external environment.
Specifically, the sunlight intensity of each window can be solved based on the normal vector, the real-time solar azimuth angle and the real-time solar altitude angle of each window. And multiplying the sunlight intensity of each window by the corresponding area of each window to obtain the sunlight power of each window. The sunlight intensity of each window is the sunlight intensity after the sunlight is incident to each window, the sunlight intensity of each window is different due to different incident angles of the sunlight to each window, and the sunlight intensity of each window can be solved by utilizing the normal vector, the real-time solar azimuth angle and the real-time solar elevation angle of each window.
S309: the controller controls the vehicle-mounted multi-region air conditioner to correct the temperature according to the sunlight power of each window.
The sunlight power of each window is different due to different angles between each window and incident light, and the controller adjusts the vehicle-mounted multi-region air conditioner to correct the temperature according to the sunlight power of each window. Different windows correspond to different vehicle-mounted air conditioners in vehicle-mounted multi-region air conditioners, for example, a vehicle-mounted air conditioner with the sunlight power of the left window corresponding to a driving position, a vehicle-mounted air conditioner with the sunlight power of the right window corresponding to a secondary driving position, a vehicle-mounted air conditioner with the sunlight power of the front windshield corresponding to a position between the driving position and the secondary driving position, and the like.
According to the embodiment, the normal vector of each window of the vehicle is firstly solved by acquiring the real-time two-dimensional sunlight intensity information, the angle information of each window, the area information of each window and the gradient information of the vehicle under the internal environment of the vehicle, the sunlight power of each window is obtained by utilizing the acquired information, the real-time solar azimuth angle and the real-time solar altitude angle, and then the temperature of the vehicle-mounted multi-zone air conditioner is adjusted according to the sunlight power of each window, so that the temperature correction of the vehicle-mounted multi-zone air conditioner can be realized only by acquiring the sunlight intensity of a single two-dimensional sunlight sensor in the vehicle under any gradient, and the comfort of each zone of the multi-.
The present application further provides an embodiment of a temperature correction apparatus for a vehicle-mounted multi-zone air conditioner, as shown in fig. 9, the apparatus includes:
the signal acquisition module 601 is configured to acquire real-time two-dimensional sunlight intensity information, angle information of each window, and area information of each window in the vehicle internal environment, where the real-time two-dimensional sunlight intensity information is sunlight intensity information acquired by a single two-dimensional sunlight sensor in the vehicle internal environment.
And a normal vector determination module 603, configured to obtain a normal vector of each window based on the angle information of each window and the area information of each window.
And a sunlight intensity determining module 605, configured to determine the sunlight intensity of the external environment where the vehicle is located according to the real-time two-dimensional sunlight intensity information.
And the sunlight power determination module 607 is configured to obtain the sunlight power of each window based on the normal vector, the real-time solar azimuth angle, the real-time solar altitude angle of each window and the sunlight intensity of the external environment where the vehicle is located.
And the temperature correction module 609 is used for controlling the vehicle-mounted multi-zone air conditioner to correct the temperature according to the sunlight power of each vehicle window.
The application additionally provides an embodiment of a temperature correction device of an on-vehicle multi-zone air conditioner, the device comprises a processor and a memory, wherein at least one instruction or at least one program is stored in the memory, and the at least one instruction, the at least one program, the code set or the instruction set are loaded and executed by the processor to realize a temperature correction method of the on-vehicle multi-zone air conditioner.
According to the embodiment of the temperature correction method, the temperature correction device and the temperature correction equipment for the vehicle-mounted multi-zone air conditioner, real-time two-dimensional sunlight intensity information, angle information of each window and area information of each window under the internal environment of a vehicle are obtained, the sunlight power of each window is obtained by utilizing the obtained information, the real-time sun azimuth angle and the real-time sun altitude angle, and then the temperature of the vehicle-mounted multi-zone air conditioner is adjusted according to the sunlight power of each window, so that the temperature correction of the vehicle-mounted multi-zone air conditioner can be realized only through the sunlight intensity collection of a single two-dimensional sunlight sensor in the vehicle, the comfort of each zone of the multi-zone air conditioner is ensured, and the problem that the cost of using a.
It should be noted that: the precedence order of the above embodiments of the present invention is only for description, and does not represent the merits of the embodiments. And specific embodiments thereof have been described above. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, as for the device, server, client and system embodiments, since they are substantially similar to the method embodiments, the description is relatively simple, and reference may be made to the partial description of the method embodiments for relevant points.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A temperature correction method of an on-board multi-zone air conditioner is characterized by comprising the following steps:
acquiring real-time two-dimensional sunlight intensity information, angle information of each window and area information of each window under the internal environment of the vehicle, wherein the real-time two-dimensional sunlight intensity information is the sunlight intensity information acquired by a single two-dimensional sunlight sensor;
obtaining normal vectors of all windows by utilizing the longitude and latitude information of the vehicle, the angle information of all windows and the area information of all windows;
determining the sunlight intensity of the vehicle in the external environment according to the real-time two-dimensional sunlight intensity information;
analyzing and obtaining the sunlight power of each window based on the normal vector, the real-time solar azimuth angle and the real-time solar altitude angle of each window and the sunlight intensity of the external environment where the vehicle is located;
and controlling the vehicle-mounted multi-region air conditioner to correct the temperature according to the sunlight power of each vehicle window.
2. The method of claim 1, wherein before controlling the on-board multi-zone air conditioner for temperature correction according to the solar power of each window, the method further comprises:
judging whether the vehicle is in a preset working condition or not according to the real-time two-dimensional sunlight intensity signal, wherein the preset working condition is a working condition that sunlight has no influence on corresponding areas around each window;
when the vehicle is in the preset working condition, controlling the vehicle-mounted multi-zone air conditioner to correct the temperature according to the same sunlight power of each zone;
otherwise, controlling the vehicle-mounted multi-region air conditioner to perform corresponding temperature correction according to the sunlight power of each vehicle window.
3. The method of claim 1, wherein the obtaining the normal vector of each window by using the longitude and latitude information of the vehicle, the angle information of each window and the area information of each window comprises:
confirming whether the longitude and latitude information of the vehicle is effective or not;
when the vehicle is effective, obtaining the driving direction of the vehicle according to the longitude and latitude information of the vehicle;
and obtaining a normal vector of each window by using the driving direction of the vehicle, the angle information based on each window and the area information of each window.
4. The method of claim 1, further comprising:
when the vehicle speed is zero, acquiring the vehicle running direction at the moment when the last vehicle speed is not zero when the vehicle speed is zero;
and determining a sun azimuth angle and a sun altitude angle according to the time information, the longitude and latitude information of the vehicle and the vehicle running direction when the vehicle speed is not zero in the previous time period.
5. The method of claim 1, wherein before obtaining the normal vector of each window by using the longitude and latitude information of the vehicle, the angle information of each window, and the area information of each window, the method further comprises:
acquiring vehicle gradient information;
when the vehicle gradient is zero in the vehicle gradient information, determining a normal vector of each window by utilizing longitude and latitude information of the vehicle, the angle signal of each window and the area signal of each window;
and when the vehicle gradient is not zero, executing a step of determining a normal vector of each window according to the longitude and latitude information of the vehicle, the angle signal of each window, the area signal of each window and the vehicle gradient information.
6. The method of claim 1, wherein before controlling the on-board multi-zone air conditioner for temperature correction according to the solar power of each window, the method further comprises:
when the sunshade curtain exists in the vehicle, acquiring opening information of a roof and the sunshade curtain of a side window;
and determining the sunlight power of each window according to the normal vector of each window, the solar azimuth angle, the solar altitude angle, the sunlight intensity of the external environment where the vehicle is located and the opening information of the roof and the side window sunshade.
7. The method of claim 1, wherein the controlling the on-board multi-zone air conditioner for temperature correction according to the solar power of each window comprises:
correcting the temperature of the corresponding area around each window according to the sunlight power of each window to obtain the output temperature of the corresponding area;
and correcting the air conditioner in the corresponding area according to the output temperature for outputting.
8. The method of claim 1, wherein the acquiring a real-time two-dimensional solar intensity signal in the vehicle interior environment comprises:
a single two-dimensional solar sensor is utilized to acquire a real-time two-dimensional solar intensity signal in the vehicle interior environment.
9. A temperature correction apparatus of an in-vehicle multi-zone air conditioner, the apparatus comprising:
the system comprises a signal acquisition module, a signal processing module and a control module, wherein the signal acquisition module is used for acquiring real-time two-dimensional sunlight intensity information, angle information of each window and area information of each window in the vehicle internal environment, and the real-time two-dimensional sunlight intensity information is the sunlight intensity information in the vehicle internal environment acquired by a single two-dimensional sunlight sensor;
the normal vector determining module is used for obtaining normal vectors of all windows by utilizing longitude and latitude information of the vehicle, angle information of all windows and area information of all windows;
the sunlight intensity determining module is used for determining the sunlight intensity of the vehicle in the external environment according to the real-time two-dimensional sunlight intensity information;
the sunlight power determining module is used for analyzing and obtaining the sunlight power of each window based on the normal vector, the real-time solar azimuth angle and the real-time solar altitude angle of each window and the sunlight intensity of the external environment where the vehicle is located;
and the temperature correction module is used for controlling the vehicle-mounted multi-region air conditioner to correct the temperature according to the sunlight power of each vehicle window.
10. An apparatus for temperature correction of an in-vehicle multi-zone air conditioner, characterized in that the apparatus comprises a processor and a memory, wherein the memory stores at least one instruction or at least one program, and the at least one instruction or the at least one program is loaded and executed by the processor to realize the method for temperature correction of the in-vehicle multi-zone air conditioner according to any one of claims 1 to 8.
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