CN115884566A

CN115884566A - Vehicle-mounted equipment and temperature control method thereof

Info

Publication number: CN115884566A
Application number: CN202111138383.5A
Authority: CN
Inventors: 邱海艳; 陈乃坚; 刘玲; 来广鹏; 杨削锋
Original assignee: Ecarx Hubei Tech Co Ltd
Current assignee: Ecarx Hubei Tech Co Ltd
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2023-03-31

Abstract

The embodiment of the invention provides vehicle-mounted equipment and a temperature control method thereof, wherein the vehicle-mounted equipment comprises a processor and a temperature-controlled device, the temperature-controlled device is provided with a temperature control structure, and the temperature control structure comprises at least one of a heating assembly, a cooling hole and a heating hole; the processor controls the temperature of the temperature controlled device through the temperature control structure and/or an external temperature control device based on the current temperature of the temperature controlled device. In this scheme, the treater can be cooled down or heat up by temperature control device through control by temperature change structure and/or external temperature control equipment to can prevent that the too cold or overheated problem from appearing in the mobile unit, realize the excess temperature protection to the mobile unit.

Description

Vehicle-mounted equipment and temperature control method thereof

Technical Field

The invention relates to the technical field of automotive electronics, in particular to vehicle-mounted equipment and a temperature control method thereof.

Background

Since a vehicle may be used in various environments, the in-vehicle electronic equipment needs to operate at various ambient temperatures. For example, temperatures outdoors in winter may reach-30 degrees celsius; the temperature in the vehicle under the strong sun in summer may reach 80 ℃.

Some device or devices in the vehicle-mounted electronic equipment may be sensitive to temperature change, and the environment where the vehicle-mounted electronic equipment is located is too cold, so that the vehicle-mounted electronic equipment may not work. The ambient temperature is too hot, and the device may be burned. Therefore, how to control the temperature of the vehicle-mounted electronic device is an urgent problem to be solved.

Disclosure of Invention

An object of an embodiment of the present invention is to provide a vehicle-mounted device and a temperature control method thereof, for controlling a temperature of a vehicle-mounted electronic device, and the specific technical scheme is as follows:

in a first aspect, an embodiment of the present invention provides an on-board device, where the on-board device includes a processor and a temperature controlled device, where:

the temperature controlled device is provided with a temperature control structure, and the temperature control structure comprises at least one of a heating assembly, a cooling hole and a heating hole;

the processor controls the temperature of the temperature controlled device through the temperature control structure and/or an external temperature control device based on the current temperature of the temperature controlled device.

Optionally, the heating assembly is electrically connected with the processor, and the processor is used for controlling the heating assembly to be electrified and heated based on temperature input;

the cooling hole with the heating hole passes through the pipe connection with temperature control equipment respectively, temperature control equipment with treater communication connection.

Optionally, the cooling hole is provided with a first electric control hole cover, and the heating hole is provided with a second electric control hole cover;

the processor is respectively electrically connected with the first electric control hole cover and the second electric control hole cover, the first electric control hole cover is used for plugging the cooling hole when receiving a closing signal, and the second electric control hole cover is used for plugging the heating hole when receiving a closing signal.

In a second aspect, an embodiment of the present invention provides a method for controlling a temperature of an on-board device, where the method includes:

acquiring the current temperature of a temperature controlled device in the vehicle-mounted equipment;

determining a target temperature control mode based on the current temperature and the corresponding relation between the preset temperature range and the temperature control mode;

and controlling the temperature of the temperature controlled device according to the target temperature control mode.

Optionally, the step of determining the target temperature control manner based on the current temperature and the corresponding relationship between the preset temperature range and the temperature control manner includes:

determining the relationship between the current temperature and a preset first temperature threshold, a preset second temperature threshold, a preset third temperature threshold and a preset fourth temperature threshold, wherein the first temperature threshold, the second temperature threshold, the preset third temperature threshold and the preset fourth temperature threshold are increased in sequence;

if the current temperature is not greater than the first temperature threshold, determining that the target temperature control mode is a first heating mode based on the corresponding relation between the preset temperature range and the temperature control mode;

if the current temperature is greater than the first temperature threshold and not greater than the second temperature threshold, determining that the target temperature control mode is a second heating mode based on the corresponding relation between the preset temperature range and the temperature control mode;

if the current temperature is greater than the third temperature threshold and not greater than the fourth temperature threshold, determining that the target temperature control mode is a first cooling mode based on the corresponding relation between the preset temperature range and the temperature control mode;

and if the current temperature is greater than the fourth temperature threshold, determining that the target temperature control mode is a second cooling mode based on the corresponding relation between the preset temperature range and the temperature control mode.

Optionally, the step of performing temperature control on the temperature-controlled device according to the target temperature control manner includes:

and when the target temperature control mode is the first heating mode, controlling the heating component to be electrified and generate heat.

when the target temperature control mode is the second heating mode, controlling the temperature control equipment to heat the temperature-controlled device through the first ventilation pipe and the heating hole of the temperature-controlled device; or the like, or a combination thereof,

and when the target temperature control mode is the first cooling mode, controlling the temperature control equipment to cool the temperature-controlled device through the second ventilation pipe and the cooling hole of the temperature-controlled device.

Optionally, the determining of the wind speed of the temperature control device includes:

calculating the wind speed u of the temperature control equipment according to the following formula:

Q＝c ₁ m(t ₂ -t ₁ ) (1)

wherein Q is the heat to be absorbed by the temperature control device, c ₁ Is the specific heat capacity of the temperature-controlled device, m is the weight of the temperature-controlled device, t ₂ Is the second temperature threshold or the third temperature threshold, t ₁ Is the current temperature, V is the ventilation, t ₃ Is preset the temperature of the inlet air of the temperature control device, c ₂ Is the specific heat capacity of air, ρ is the air density, and D is the diameter of the heating hole or the cooling hole.

Optionally, the method further includes:

when the target temperature control mode is not the second heating mode, controlling a second electric control hole cover of the heating hole to be electrified so that the second electric control hole cover blocks the heating hole; and/or the presence of a gas in the gas,

and when the target temperature control mode is not the first cooling mode, controlling the first electric control hole cover of the cooling hole to be electrified so as to enable the first electric control hole cover to plug the cooling hole.

when the target temperature control mode is the second cooling mode, controlling the vehicle-mounted equipment to close a preset function; and/or reducing the voltage of a power supply main power supply of the vehicle-mounted equipment.

The embodiment of the invention has the following beneficial effects:

in the scheme provided by the embodiment of the invention, the vehicle-mounted equipment comprises a processor and a temperature-controlled device, wherein the temperature-controlled device is provided with a temperature control structure, and the temperature control structure comprises at least one of a heating assembly, a cooling hole and a heating hole; the processor controls the temperature of the temperature controlled device through the temperature control structure and/or an external temperature control device based on the current temperature of the temperature controlled device. Therefore, in the scheme, the processor can cool or heat the temperature-controlled device through the temperature control structure and/or the external temperature control equipment, so that the problem of supercooling or overheating of the vehicle-mounted equipment can be prevented, and the over-temperature protection of the vehicle-mounted equipment is realized.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other embodiments can be obtained by using the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a vehicle-mounted device according to an embodiment of the present invention;

fig. 2 is a flowchart of a temperature control method for an on-board device according to an embodiment of the present invention;

FIG. 3 is a flowchart illustrating a specific step S202 in the embodiment shown in FIG. 2;

FIG. 4 is a schematic diagram of the temperature threshold based on the embodiment shown in FIG. 3;

FIG. 5 is a schematic view of the arrangement of the heating assembly according to the embodiment shown in FIG. 3;

FIG. 6 is a schematic diagram of the connection between the temperature controlled device and the temperature control apparatus according to the embodiment shown in FIG. 3;

FIG. 7 (a) is a schematic view of an arrangement of heat dissipation holes according to the embodiment shown in FIG. 2;

FIG. 7 (b) is another schematic view of the arrangement of the louvers according to the embodiment shown in FIG. 2;

fig. 8 is a schematic structural diagram of a vehicle-mounted electronic device according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention are within the scope of the present invention.

In order to control the temperature of the in-vehicle electronic device and prevent the in-vehicle electronic device from being too cold or too hot, embodiments of the present invention provide an in-vehicle device, a temperature control method of the in-vehicle device, an electronic device, a computer-readable storage medium, and a computer program product, and a description will be first given of the in-vehicle device provided by the embodiments of the present invention.

As shown in fig. 1, an in-vehicle apparatus 101 includes a processor 110 and a temperature-controlled device 120, wherein:

the temperature controlled device 120 is provided with a temperature control structure 121, and the temperature control structure 121 comprises at least one of a heating assembly 1211, a cooling hole 1212 and a heating hole 1213; the processor 110 controls the temperature of the temperature controlled device 120 through the temperature control structure 121 and/or the external temperature control device 201 based on the current temperature of the temperature controlled device 120.

In the scheme provided by the embodiment of the invention, the vehicle-mounted equipment comprises a processor and a temperature-controlled device, wherein the temperature-controlled device is provided with a temperature control structure, and the temperature control structure comprises at least one of a heating assembly, a cooling hole and a heating hole; the processor controls the temperature of the temperature controlled device through the temperature control structure and/or an external temperature control device based on the current temperature of the temperature controlled device. The processor can cool or heat the temperature controlled device through the temperature control structure and/or the external temperature control equipment, so that the problem of supercooling or overheating of the vehicle-mounted equipment can be prevented, and the over-temperature protection of the vehicle-mounted equipment is realized.

Although the heating assembly 1211, the cooling hole 1212, and the heating hole 1213 are illustrated in fig. 1, they are only an example of the in-vehicle device provided by the embodiment of the present invention, and do not represent that the in-vehicle device provided by the embodiment of the present invention must have the heating assembly 1211, the cooling hole 1212, and the heating hole 1213 at the same time. The in-vehicle apparatus provided by the embodiment of the invention may have at least one structure of the heating assembly 1211, the cooling hole 1212 and the heating hole 1213.

The vehicle-mounted device may be an electronic device such as a vehicle-mounted computer and a vehicle-mounted refrigerator, and is not particularly limited herein. The processor may be: any Vehicle-mounted information interaction terminal such as a Vehicle-mounted central computer, a central domain controller, or an integrated ECU, a driving brain, a Vehicle machine, a DHU (driving Head Unit, an integrated machine of an entertainment host and an instrument), an IHU (information Head Unit), an IVI (In-Vehicle information system), and the like; for clarity of description, the processor will be referred to hereinafter.

The vehicle-mounted equipment can be used at the temperature of minus 40 ℃ to 125 ℃ or even more extreme environment temperature, some devices can generate heat during the use process to cause local overheating, and if the temperature of the vehicle-mounted equipment is not controlled, the vehicle-mounted equipment is in an overcooled or overheated state for a long time, the problems of abnormal electrical performance, device damage, accelerated aging and the like can occur.

In order to realize the control of the temperature of the vehicle-mounted equipment, the processor can acquire the current temperature of the temperature-controlled device in the vehicle-mounted equipment. The temperature controlled device may be one or some devices in the vehicle-mounted device, and the temperature of the device may be adversely affected if the device is not controlled.

In one embodiment, a thermal simulation report of the vehicle-mounted device may be obtained in advance through a simulation technology, and then the device at a sensitive point or points with high temperature rise risk may be set as the temperature controlled device by analyzing the thermal simulation report. The sensitive point can also be displayed to the user of the vehicle-mounted equipment for viewing so that the user can select the sensitive point which the user wants to control, and then the device at the sensitive point selected by the user can be determined as the temperature controlled device.

For example, by analyzing the temperature rise risk degree of the sensitive point in the thermal simulation report of the vehicle-mounted device, it is obtained that the temperature rise risk of a certain capacitor in the circuit board of the vehicle-mounted device is high, and the capacitor may be burned out at 70 ℃, and the capacitor may be set as a temperature controlled device. For another example, the liquid crystal display of the vehicle-mounted device has a low risk of temperature rise, but the liquid crystal display is very sensitive to temperature variation, the service life of the liquid crystal display can be affected by small temperature variation, and the user may want to control the temperature of the liquid crystal display, so the user can select the liquid crystal display as the temperature-controlled device.

The temperature controlled device is provided with a temperature control structure, and the temperature control structure can comprise at least one of a heating assembly, a cooling hole and a heating hole. The heating component can be a heating resistor which is used for heating the temperature controlled device; the cooling hole and the heating hole can be specifically the vent hole at the position corresponding to the temperature control device on the shell of the vehicle-mounted equipment, the external temperature control equipment can introduce cold air to the temperature control device through the cooling hole, and hot air can be introduced to the temperature control device through the heating hole, so that the purpose of controlling the temperature of the temperature control device is achieved.

The external temperature control device is a device which is externally connected to the vehicle-mounted device and can perform cooling and/or heating, and may be, for example, a vehicle-mounted air conditioner, a vehicle-mounted fan, or the like. In an embodiment, the external temperature control device is a vehicle air conditioner, the vehicle air conditioner has a hot air mode and a cold air mode, and the processor can control the temperature of the controlled-temperature device by controlling the vehicle air conditioner to start the hot air mode or the cold air mode.

As an implementation manner of the embodiment of the present invention, the heating element 1211 is electrically connected to the processor 110, and the processor 110 is configured to control the heating element 1211 to generate heat based on the temperature input; the cooling holes 1212 and the heating holes 1213 are respectively connected to the temperature control device 201 through a pipe, and the temperature control device 201 is communicatively connected to the processor 110.

In one embodiment, the heating assembly is electrically connected to the processor, and as shown in fig. 5, the heating assembly may include a switch 502 and a heating resistor 503, and the switch 502 and the heating resistor 503 are connected in series and then connected in parallel with the circuit 501 of the temperature controlled device. When the processor obtains that the current temperature of the temperature controlled device is a relatively low temperature, it indicates that the temperature controlled device needs to be heated, and the processor may control the switch 502 to be closed, so that the heating resistor 503 is powered on to generate heat, and then the temperature controlled device is locally heated.

The external temperature control equipment is a vehicle-mounted air conditioner, can be connected with a hot air pipe of the vehicle-mounted air conditioner through a heating hole by a temperature control device, is connected with a cold air pipe of the vehicle-mounted air conditioner through a cooling hole by the temperature control device, and is in communication connection with the processor.

Specifically, as shown in fig. 6, the hot air duct 611 of the in-vehicle air conditioner 610 may be connected to the heating hole 1213 of the temperature controlled device 120 through the hot air branch pipe 612; the cool air duct 613 of the on-board air conditioner 610 may be connected to the cooling hole 1212 of the temperature controlled device 120 through the cool air duct 614. The in-vehicle air conditioner 610 may further include a ventilation duct 615 for conditioning the exchange of hot air and cold air.

In this way, after the processor obtains the current temperature of the temperature controlled device, if the temperature is required to be raised, the processor can control the vehicle-mounted air conditioner to start the hot air mode, and the hot air heats the temperature controlled device through the hot air pipe 611, the hot air branch pipe 612 and the heating hole 1213. If the temperature rise processing is needed, the vehicle-mounted air conditioner can be controlled to start the cold air mode, and cold air is used for cooling the temperature controlled device through the cold air pipe 613, the cold air branch pipe 614 and the cooling hole 1212.

As an implementation manner of the embodiment of the present invention, the cooling hole 1212 may have a first electric control hole cover, and the heating hole 1213 may have a second electric control hole cover; the processor 110 is electrically connected to a first electrically controlled orifice cover for plugging the cooling orifices 1212 upon receiving a closing signal and a second electrically controlled orifice cover for plugging the heating orifices 1213 upon receiving a closing signal, respectively.

In one embodiment, the electric control hole cover can be a spring hole cover, the spring hole cover is connected with electricity, wherein, the single turns of the spring are not contacted or insulated, when the electricity is connected, the spring is equivalent to an electrified solenoid, each turn of the spring is equivalent to annular current, the current direction in each turn of the spring is the same, the currents in the same direction are mutually attracted, and the adjacent turns of the spring are mutually attracted, so that the spring hole cover can be contracted and block the cooling hole or the heating hole; when the power is off, the current in the spring disappears, correspondingly, the attraction force between every two adjacent turns of the spring disappears, the spring extends to recover the original shape, the spring hole cover is separated from the cooling hole or the heating hole, the effect of opening the cooling hole or the heating hole is achieved, and then cold air or hot air can enter the vehicle-mounted equipment to cool or heat the temperature controlled device.

After the processor acquires the current temperature of the temperature controlled device, judging whether the temperature controlled device needs to be cooled or heated; if the temperature does not need to be reduced, the processor can output a closing signal to the first electric control hole cover so as to control the first electric control hole cover to be electrified and then seal the cooling hole; if the temperature does not need to be raised, the processor can output a closing signal to the second electric control hole cover so as to control the second electric control hole cover to be electrified and then seal the heating hole; if the temperature needs to be reduced, the processor can output a starting signal to the first electric control hole cover so as to control the first electric control hole cover to be powered off to open the cooling hole; if the temperature needs to be raised, the processor can output a starting signal to the second electric control hole cover so as to control the second electric control hole cover to be powered off to open the heating hole.

The processor can control the first electric control hole cover and/or the second electric control hole cover to be electrified by outputting a closing signal, and can control whether cold air or hot air generated by the vehicle-mounted air conditioner can flow into the temperature controlled device, so that the temperature of the temperature controlled device can be controlled.

Corresponding to the vehicle-mounted device, an embodiment of the present invention further provides a temperature control method for a vehicle-mounted device, where the temperature control method may be applied to a processor in the vehicle-mounted device, and the method for controlling a temperature of a vehicle-mounted device provided in an embodiment of the present invention is described below.

As shown in fig. 2, a method for controlling a temperature of an in-vehicle device, the method includes:

s201, acquiring the current temperature of a temperature controlled device in the vehicle-mounted equipment;

s202, determining a target temperature control mode based on the current temperature and the corresponding relation between the preset temperature range and the temperature control mode;

and S203, controlling the temperature of the temperature controlled device according to the target temperature control mode.

Therefore, in the scheme provided by the embodiment of the invention, the processor can acquire the current temperature of the temperature-controlled device in the vehicle-mounted equipment, determine the target temperature control mode based on the current temperature and the corresponding relation between the preset temperature range and the temperature control mode, and control the temperature of the temperature-controlled device according to the target temperature control mode. It is obvious that in this scheme, can predetermine the corresponding relation between temperature range and the temperature control mode, after obtaining by temperature control device's current temperature, can confirm whether its current temperature is too high or low excessively, and then can confirm suitable target temperature control mode based on this corresponding relation, carry out temperature control according to this target temperature control mode to by temperature control device, can be cooled down or heat up by temperature control device to can prevent that the vehicle-mounted equipment from appearing the too cold or overheated problem, realize the overtemperature protection to vehicle-mounted equipment.

The vehicle-mounted equipment can be used at the temperature of minus 40 ℃ to 125 ℃ or even more extreme environment temperature, some devices can generate heat in the using process to cause local overheating, and if the temperature of the vehicle-mounted equipment is not controlled, the vehicle-mounted equipment is in an overcooled or overheated state for a long time, and the problems of abnormal electrical performance, device damage, accelerated aging and the like can occur.

In order to realize the control of the temperature of the in-vehicle device, in the above step S201, the processor may acquire the current temperature of the temperature controlled device in the in-vehicle device. The temperature controlled device may be one or some devices in the vehicle-mounted device, and the temperature of the device may be adversely affected if the device is not controlled.

For example, by analyzing the temperature rise risk degree of the sensitive point in the thermal simulation report of the vehicle-mounted device, it is obtained that the temperature rise risk of a certain capacitor in the circuit board of the vehicle-mounted device is high, and the capacitor may be burned out at 70 ℃, and the capacitor may be set as a temperature controlled device. For another example, the liquid crystal display of the vehicle-mounted device has a low risk of temperature rise, but the liquid crystal display is very sensitive to temperature changes, the service life of the liquid crystal display can be affected by the small temperature changes, and the user can select the liquid crystal display as the temperature controlled device if the user wants to control the temperature of the liquid crystal display.

As an embodiment, the processor may obtain the current temperature of the temperature-controlled device in the vehicle-mounted device in real time, for example, for some temperature-controlled devices with high sensitivity to temperature change, such as a liquid crystal display of the vehicle-mounted device, the processor may obtain the current temperature in real time. As another embodiment, a time interval may also be set, and the processor may periodically obtain the current temperature of the temperature-controlled device in the vehicle-mounted device according to the time interval, for example, for some temperature-controlled devices with low sensitivity to temperature, such as a vehicle-mounted refrigerator, the processor may periodically obtain the current temperature. The time interval may be set according to factors such as the sensitivity of the temperature controlled device to the temperature, for example, may be 1 minute, 2 minutes, 5 minutes, and the like.

After obtaining the current temperature, the processor may determine the target temperature control manner based on the current temperature and the corresponding relationship between the preset temperature range and the temperature control manner, that is, execute the step S202.

The control of the temperature of the vehicle-mounted device needs to be based on a proper temperature control mode, and in order to determine the temperature control mode conveniently, a corresponding relation between the temperature range and the temperature control mode can be established in advance, and then the processor can determine a proper target temperature control mode based on the corresponding relation.

In one embodiment, the processor may determine a normal temperature range according to a temperature range in which the vehicle-mounted device can normally operate, and a temperature range smaller than a minimum value of the temperature range is set as the low temperature range and a temperature range larger than a maximum value of the temperature range is set as the high temperature range.

The processor may determine the target temperature control manner by determining a temperature range in which the current temperature is located, for example, the normal temperature range corresponds to the first temperature control manner, the low temperature range corresponds to the second temperature control manner, and the high temperature range corresponds to the third temperature control manner. The correspondence relationship may be recorded by using a table, for example, as shown in the following table:

temperature range	Normal temperature range	Low temperature range	High temperature range
				Temperature control mode	First temperature control mode	Second temperature control mode	Third temperature control mode

In an embodiment, if the current temperature of the temperature-controlled device is within the normal temperature range, the first temperature control mode is selected to control the temperature of the temperature-controlled device, and since the current temperature of the temperature-controlled device is normal and does not need to be controlled, the first temperature control mode may specifically be to not control the temperature and maintain the current temperature.

In another embodiment, the processor determines the target temperature control manner based on the current temperature and the corresponding relationship between the preset temperature range and the temperature control manner, that is, before executing the step S202, it may first determine whether the current temperature is within the normal temperature range, if the current temperature is within the normal temperature range, no operation is performed, and the step S201 is executed; if the current temperature is not in the normal temperature range, the process continues to step S202.

If the current temperature of the temperature controlled device is smaller than the minimum value of the normal temperature range, that is, belongs to the low temperature range, it indicates that the current temperature of the temperature controlled device is low, which may affect the normal use of the function of the temperature controlled device, so the temperature of the temperature controlled device needs to be increased, so the second temperature control mode is a mode capable of increasing the current temperature.

If the current temperature of the temperature controlled device is greater than the maximum value of the normal temperature range, that is, the temperature controlled device belongs to a high temperature range, it is indicated that the current temperature of the temperature controlled device is higher, which may affect the normal use of the function of the temperature controlled device, so that the temperature of the temperature controlled device needs to be reduced, and therefore the third temperature control mode is a mode capable of reducing the current temperature.

Next, in step S203, the in-vehicle device may perform temperature control on the temperature-controlled device according to the determined target temperature control manner, so as to adjust the temperature of the temperature-controlled device within the normal temperature range.

For example, the normal temperature range is 0 ℃ to 70 ℃, and the current temperature of the temperature controlled device may have the following states: the first method comprises the following steps: the current temperature of the temperature controlled device is 45 ℃, and in the normal temperature range, the current temperature of the temperature controlled device is the normal temperature, and the processor can select the first temperature control mode to control the temperature of the temperature controlled device, namely, the current temperature is kept. And the second method comprises the following steps: the current temperature of the temperature controlled device is-10 ℃, and the processor can select a second temperature control mode to control the temperature of the temperature controlled device so as to improve the current temperature. And the third is that: the current temperature of the temperature controlled device is 90 ℃, and the processor can select a third temperature control mode to control the temperature of the temperature controlled device so as to reduce the current temperature.

The scheme provided by the embodiment of the invention is adopted to control the temperature of the vehicle-mounted equipment, the corresponding relation between the temperature range and the temperature control mode is preset, the processor judges whether the current temperature of the temperature-controlled device is normal, too high or too low after acquiring the current temperature of the temperature-controlled device, then a proper target temperature control mode is determined based on the corresponding relation between the temperature range and the temperature control mode, and the processor controls the temperature of the temperature-controlled device according to the target temperature control mode, so that the temperature-controlled device keeps the temperature, reduces the temperature or increases the temperature, the problem of over-cooling or over-heating of the vehicle-mounted equipment is prevented, and the over-temperature protection of the vehicle-mounted equipment is realized.

As an implementation manner of the embodiment of the present invention, as shown in fig. 3, the step of determining the target temperature control manner based on the current temperature and the corresponding relationship between the preset temperature range and the temperature control manner includes:

s301, determining the relation between the current temperature and a preset first temperature threshold, a preset second temperature threshold, a preset third temperature threshold and a preset fourth temperature threshold;

in order to more precisely control the temperature of the temperature controlled device, in one embodiment, a first temperature threshold, a second temperature threshold, a third temperature threshold, and a fourth temperature threshold may be preset, wherein the first temperature threshold, the second temperature threshold, the third temperature threshold, and the fourth temperature threshold may be sequentially increased. Thus, the four temperature thresholds may divide the temperature axis into five temperature intervals.

For example, as shown in FIG. 4, a first temperature threshold may be set at-40 deg.C, a second temperature threshold may be set at 0 deg.C, a third temperature threshold may be set at 70 deg.C, and a fourth temperature threshold may be set at 125 deg.C. Thus, the temperature axis is divided into five temperature intervals which are respectively not more than-40 ℃; -40 ℃ to 0 ℃; 0-70 ℃; 70-125 ℃; greater than 125 deg.C.

Five corresponding relations may exist between the current temperature of the temperature controlled device and the preset first temperature threshold, the second temperature threshold, the third temperature threshold and the fourth temperature threshold, specifically:

the current temperature is not more than a first temperature threshold value, which indicates that the temperature of the temperature controlled device is very low at this moment, so that the temperature controlled device can be determined to be in an ultralow temperature state, and the first temperature threshold value is the highest temperature of the ultralow temperature state;

the current temperature is greater than the first temperature threshold and not greater than the second temperature threshold, which indicates that the temperature of the temperature-controlled device is lower at this time, so that the temperature-controlled device can be determined to be in a low-temperature state, the first temperature threshold is the lowest temperature of the low-temperature state, and the second temperature threshold is the highest temperature of the low-temperature state;

the current temperature is greater than the second temperature threshold and is not greater than a third temperature threshold, which indicates that the temperature of the temperature controlled device is normal at the moment, so that the temperature controlled device can be determined to be in a normal temperature state, the second temperature threshold is the lowest temperature of the normal temperature state, and the third temperature threshold is the highest temperature of the normal temperature state;

the current temperature is greater than the third temperature threshold and is not greater than the fourth temperature threshold, which indicates that the temperature of the temperature-controlled device is higher at this moment, so that the temperature-controlled device can be determined to be in a high-temperature state, the third temperature threshold is the lowest temperature of the high-temperature state, and the fourth temperature threshold is the highest temperature of the high-temperature state;

the current temperature is greater than the fourth temperature threshold, which indicates that the temperature of the temperature-controlled device is very high at this time, so that the temperature-controlled device can be determined to be in the ultra-high temperature state, and the fourth temperature threshold is the lowest temperature of the ultra-high temperature state.

If the temperature-controlled device is in a normal temperature state, the current temperature of the temperature-controlled device is the normal temperature, so that the temperature of the temperature-controlled device does not need to be controlled.

In one embodiment, the current temperature of the vehicle-mounted device controlled by the temperature control device can be displayed in a text manner on a display screen of the vehicle-mounted device, and a corresponding color can be displayed as a background of the text according to the current temperature state. For example, the ultra-low temperature state corresponds white background, and the low temperature state corresponds grey background, and the normal temperature state corresponds blue background, and the high temperature state corresponds pink background, and the ultra-high temperature state corresponds dark red background, and like this, the user can audio-visually look over the temperature state that the mobile unit was by temperature control device temperature.

In one embodiment, when the temperature of the vehicle-mounted equipment controlled by the temperature control device is in an ultra-low temperature state or an ultra-high temperature state, the vehicle-mounted equipment can output alarm information; for example, when the processor judges that the current temperature is not greater than the first temperature threshold or the current temperature is greater than the fourth temperature threshold, the voice module of the vehicle-mounted device can send an alarm sound, the alarm sound can be that a certain current temperature controlled device is in an ultra-low temperature/ultra-high temperature state, and the like, so that a user can be timely reminded of checking the temperature information of the vehicle-mounted device by the temperature controlled device.

S311, if the current temperature is not greater than the first temperature threshold, determining that the target temperature control mode is a first heating mode based on the corresponding relation between the preset temperature range and the temperature control mode;

if the current temperature of the temperature-controlled device is not greater than the first temperature threshold, it indicates that the current temperature of the temperature-controlled device is very low, and it can be determined that the temperature-controlled device is in an ultra-low temperature state.

For example, the current temperature of the temperature controlled device is-60 ℃ and not greater than the first temperature threshold value-40 ℃, the temperature controlled device may be determined to be in the ultra-low temperature state, and the processor may determine the target temperature control mode to be the first heating mode based on the correspondence between the preset temperature range and the temperature control mode.

S312, if the current temperature is greater than the first temperature threshold and not greater than the second temperature threshold, determining that the target temperature control mode is a second heating mode based on the corresponding relation between the preset temperature range and the temperature control mode;

if the current temperature of the temperature-controlled device is greater than the first temperature threshold and not greater than the second temperature threshold, it indicates that the current temperature of the temperature-controlled device is low, and it can be determined that the temperature-controlled device is in a low-temperature state, and at this time, the temperature of the temperature-controlled device needs to be raised to reach the second temperature threshold, so the temperature control mode corresponding to the temperature range greater than the first temperature threshold and not greater than the second temperature threshold can be a second heating mode, which is a mode capable of raising the temperature of the temperature-controlled device.

For example, the current temperature of the temperature-controlled device is-20 ℃, which is greater than the first temperature threshold value by-40 ℃ and not greater than the second temperature threshold value by 0 ℃, the temperature-controlled device may be determined to be in a low-temperature state, and the processor may determine the target temperature control manner to be the second heating manner based on the preset correspondence between the temperature range and the temperature control manner.

S313, if the current temperature is greater than the third temperature threshold and not greater than the fourth temperature threshold, determining that the target temperature control mode is a first cooling mode based on the corresponding relation between a preset temperature range and a temperature control mode;

if the current temperature of the temperature-controlled device is greater than the third temperature threshold and not greater than the fourth temperature threshold, it is determined that the current temperature of the temperature-controlled device is high, and it may be determined that the temperature-controlled device is in a high-temperature state.

For example, the current temperature of the temperature-controlled device is 90 ℃, is greater than the third temperature threshold value by 70 ℃ and is not greater than the fourth temperature threshold value by 125 ℃, it may be determined that the temperature-controlled device is in a high-temperature state, and the processor may determine that the target temperature control manner is the first cooling manner based on a correspondence between a preset temperature range and a temperature control manner.

And S314, if the current temperature is greater than the fourth temperature threshold, determining that the target temperature control mode is a second cooling mode based on the corresponding relation between the preset temperature range and the temperature control mode.

If the current temperature of the temperature controlled device is higher than the fourth temperature threshold, it indicates that the current temperature of the temperature controlled device is very high, and it can be determined that the temperature controlled device is in an ultra-high temperature state.

For example, the current temperature of the temperature-controlled device is 140 ℃ and is greater than the fourth temperature threshold value by 125 ℃, it may be determined that the temperature-controlled device is in the ultra-high temperature state, and the processor may determine that the target temperature control mode is the second cooling mode based on the preset corresponding relationship between the temperature range and the temperature control mode.

In an embodiment, if the current temperature is greater than the second temperature threshold and not greater than the third temperature threshold, it is determined that the temperature-controlled device is operating in a normal temperature state, the current temperature does not need to be controlled, the current temperature of the temperature-controlled device is not maintained corresponding to the target temperature control mode, the step of obtaining the current temperature of the temperature-controlled device is returned, and whether the temperature of the temperature-controlled device is normal or not is continuously monitored, so as to ensure that the temperature-controlled device operates in a normal temperature range.

As can be seen, in this embodiment, the processor may obtain the current temperature of the temperature-controlled device in the vehicle-mounted device, determine the target temperature control manner based on the current temperature and the corresponding relationship between the preset temperature range and the temperature control manner, and further determine the target temperature control manner based on the corresponding relationship between the preset temperature range and the temperature control manner for each temperature state. In this way, the processor can selectively select an appropriate target temperature control mode.

As an implementation manner of the embodiment of the present invention, the vehicle-mounted device may include a heating component, where the heating component may include a switch and a heating resistor, and the switch and the heating resistor are connected in series and are connected in parallel with a circuit of the temperature controlled device; as shown in fig. 5, the heating assembly may include a switch 502 and a heating resistor 503, the switch 502 and the heating resistor 503 being connected in series and in parallel with the circuit 501 of the temperature controlled device.

Correspondingly, the step of performing temperature control on the temperature-controlled device according to the target temperature control manner may include:

When the target temperature control method is the first heating method, it is described that the circuit 501 of the temperature-controlled device is in an ultra-low temperature state, and temperature needs to be raised, and the processor may control the heating element to generate heat by energization, specifically, the processor may control the switch 502 to be closed to generate heat by energization of the heating resistor 503, thereby locally heating the circuit 501 of the temperature-controlled device. Wherein, the heating power P of the heating resistor can satisfy the following formula:

in the formula (4), P is the heating power of the heating resistor, U is the voltage value at the two ends of the heating resistor when the heating resistor is powered on, and R is the resistance value of the heating resistor. Based on the heating power formula, the heating resistor with the appropriate resistance value can be selected based on the voltage values at two ends of the circuit of the temperature controlled device in the vehicle-mounted equipment so as to control the heating power and achieve the purpose of rapidly heating the vehicle-mounted equipment by the temperature controlled device.

It can be seen that, in this embodiment, can carry out local heating to by temperature control device through heating element, heating efficiency is higher, can guarantee to carry out rapid heating up to by temperature control device when being in the ultra-low temperature state by temperature control device.

As an implementation manner of the embodiment of the present invention, the temperature controlled device may be connected to a first ventilation pipe of an external temperature control device through a heating hole, and the temperature controlled device may be connected to a second ventilation pipe of the external temperature control device through a cooling hole.

As an implementation manner, the external temperature control device may be a vehicle-mounted air conditioner, the first ventilation pipe may include a hot air pipe and a hot air branch pipe, and the second ventilation pipe may include a cold air pipe and a cold air branch pipe. As shown in fig. 6, the hot air duct 611 of the in-vehicle air conditioner 610 may be connected to the heating hole 1213 of the temperature controlled device 120 through the hot air branch pipe 612; the cold air duct 613 of the vehicle air conditioner 610 may be connected to the cooling hole 1212 of the temperature controlled device 120 through the cold air branch duct 614. The in-vehicle air conditioner 610 may further include a ventilation duct 615 for conditioning the exchange of hot air and cold air.

when the target temperature control mode is the second heating mode, controlling the temperature control equipment to heat the temperature-controlled device through the first ventilation pipe and the heating hole of the temperature-controlled device; or the like, or, alternatively,

For example, the temperature control device may be a vehicle-mounted air conditioner, and the vehicle-mounted air conditioner has a hot air mode and a cold air mode, so that in order to heat or cool the temperature-controlled device, when the target temperature control mode is the second heating mode, the processor may control the vehicle-mounted air conditioner to start the hot air mode, so that hot air generated by the vehicle-mounted air conditioner may heat the temperature-controlled device through the first ventilation pipe, thereby achieving the purpose of heating the temperature-controlled device. When the target temperature control mode is the first cooling mode, the processor can control the vehicle-mounted air conditioner to start the cold air mode, and thus, cold air generated by the vehicle-mounted air conditioner can be cooled by the temperature control device through the second ventilation pipe, and the purpose of cooling by the temperature control device is achieved.

In one embodiment, the heating holes and the cooling holes may be holes located on a wall of a housing of the vehicle-mounted device, and since the number and the diameter of the heating holes and the cooling holes may affect the temperature control effect of the temperature controlled device, the number and the diameter of the heating holes and the cooling holes may be set according to factors such as the specific size of the temperature controlled device, for example, the number of the heating holes and the cooling holes may be 1, and the diameter of the heating holes and the cooling holes may be 14mm, and the like, which is not particularly limited herein.

The heating hole and the cooling hole can be arranged on the same side wall of the vehicle-mounted equipment, and also can be arranged on different side walls, and can be determined according to the actual arrangement of the hot air branch pipe and the cold air branch pipe of the vehicle-mounted air conditioner, and are not specifically limited. For example, the heating holes and the cooling holes may be provided in the same side wall of the in-vehicle apparatus.

In one embodiment, the in-vehicle equipment may be provided with a hot air outlet and/or a cold air outlet, which may be referred to as louvers. As shown in fig. 7 (a) and 7 (b), heat dissipation holes 701 may be formed in the side walls of the in-vehicle device, and specifically, the heat dissipation holes may be rectangular holes as shown in fig. 7 (a) and 7 (b), and may be distributed in the other three side walls of the in-vehicle device where no cooling hole is formed.

When the target temperature control mode is the second heating mode, the processor can control the vehicle-mounted air conditioner to start the hot air mode, and therefore hot air generated by the vehicle-mounted air conditioner can heat the temperature controlled device through the hot air pipe. At the moment, the hot air outlet can be used for discharging hot air of the vehicle-mounted air conditioner, air circulation is guaranteed, and the temperature rising effect of the temperature controlled device is enhanced.

When the target temperature control mode is the first cooling mode, the processor can control the vehicle-mounted air conditioner to start the cold air mode, and thus, cold air generated by the vehicle-mounted air conditioner can be cooled by the temperature control device through the cold air pipe. At this moment, the cold air outflow can be used for making on-vehicle air conditioner's cold air effluvium, guarantees the circulation of air, and the reinforcing is to the cooling effect by temperature control device.

The size of the radiating holes can meet the requirements of waterproof and dustproof grades so as to achieve the waterproof and dustproof effects.

In one embodiment, the socket may be disposed on one side wall of the vehicle-mounted device, and the circuit board may be disposed in the vehicle-mounted device, and the circuit board may be disposed horizontally, vertically, or obliquely in the vehicle-mounted device, which is not limited herein. If the circuit board is vertically arranged, cooling holes can be formed in the side wall of the upper side or the lower side of the vehicle-mounted equipment, and then the radiating holes can be formed in the side wall opposite to the cooling holes, so that heat is radiated through the radiating holes.

Because under the cold air effect, the condensate water of production if leave over on the socket hole, can arouse short circuit phenomenon, so set up the lateral wall of socket in the mobile unit and can not consider the heat dissipation. Specifically, if the circuit board is horizontally disposed, the cooling hole may be formed in a side wall of the in-vehicle device perpendicular to the direction in which the circuit board is disposed, and not facing the socket, and a plurality of fine heat radiation holes may be formed in other outer side walls of the in-vehicle device.

In one embodiment, since the cold air is directly blown to the circuit board, air on the surface of the circuit board may not be effectively circulated, and thus, a cooling hole may not be formed in an outer wall of the in-vehicle device facing the circuit board.

It can be seen that, in this embodiment, by temperature control device can pass through the heating orifice with on-vehicle air conditioner's hot-blast main and be connected, by temperature control device and on-vehicle air conditioner's cold air duct through the cooling orifice, and then, when the target temperature control mode is second heating mode or first cooling mode, the treater can control on-vehicle air conditioner and open hot-blast mode or cold wind mode correspondingly, carries out temperature control to by temperature control device through the heat transfer. Thus, the temperature of the vehicle-mounted equipment can be controlled through the existing vehicle-mounted air conditioner.

As an implementation manner of the embodiment of the present invention, the determining manner of the wind speed of the temperature control device may include:

Q＝c ₁ m(t ₂ -t ₁ ) (1)

in an embodiment of the present invention, the temperature control device is a vehicle air conditioner, and specifically, when the target temperature control mode is the second heating mode, the processor may control the vehicle air conditioner to start a hot air mode, heat the device to be temperature controlled through the hot air pipe, and the vehicle air conditioner may deliver hot air to the vehicle device through the heating hole to heat the device to be temperature controlled.

Since the heating purpose at this time is to heat the temperature controlled device to the normal temperature, that is, to the second temperature threshold, the heating formula may be:

Q＝c ₁ m(t ₂ -t ₁ ) (1)

in the formula (1), Q is the heat quantity to be absorbed by the temperature control device, which is a positive value, and the absolute value thereof is the heat quantity to be absorbed by the temperature control device, c ₁ Is the specific heat capacity of the temperature controlled device, m is the weight of the temperature controlled device, t ₂ Is the second temperature threshold, t ₁ Is the current temperature of the temperature controlled device; thus, the solution can be obtained by the formulaAnd obtaining the heat quantity Q required to be absorbed by the temperature control device.

The vehicle-mounted air conditioner is used for conveying hot air to the controlled temperature device, the controlled temperature device absorbs heat from the hot air through heat convection, and the calculation formula of the ventilation quantity is as follows:

in the formula (5), V is the ventilation amount, t ₃ The inlet air temperature of the vehicle-mounted air conditioner can be preset according to actual conditions, c ₂ The specific heat capacity of air is 1.0kj/kg, and rho is the air density and is 1.09kg/m 3. Based on the heat Q, the ventilation V can be obtained through solving.

Furthermore, the wind speed u of the vehicle-mounted air conditioner can be obtained through calculation according to the ventilation volume V, and the specific formula is as follows:

in the formula (3), u is the wind speed of the vehicle-mounted air conditioner, and D is the diameter of the heating hole, and may be 14mm, for example. And solving to obtain the wind speed u of the vehicle-mounted air conditioner.

When the target temperature control mode is the second heating mode, the processor controls the vehicle-mounted air conditioner to start a hot air mode, the temperature controlled device is heated through the hot air pipe, the processor can control the vehicle-mounted air conditioner to change a wind speed gear according to the calculated wind speed u, and then the wind speed u of the air conditioner is adjusted to adopt a proper wind speed gear for heating.

As an implementation manner of the embodiment of the present invention, when the target temperature control manner is the first cooling manner, the processor may control the vehicle-mounted air conditioner to start the cold air mode, and cool the temperature-controlled device through the cold air pipe, and the vehicle-mounted air conditioner may deliver cold air to the vehicle-mounted device through the cooling hole to cool the temperature-controlled device.

Wherein, because the cooling purpose at this moment is for being cooled down to normal temperature by temperature control device, cooling down to above-mentioned third temperature threshold promptly, so the cooling formula can be for:

Q＝c ₁ m(t ₂ -t ₁ ) (1)

in the formula (1), Q is a negative value, the absolute value of Q is the heat quantity to be released by the temperature control device, and c ₁ Is the specific heat capacity of the temperature controlled device, m is the weight of the temperature controlled device, t ₂ Is the third temperature threshold, t ₁ Is the current temperature of the temperature controlled device; therefore, the heat Q required to be absorbed by the temperature control device can be solved through the formula.

Cold air is conveyed to the temperature-controlled device through the vehicle-mounted air conditioner, the temperature-controlled device absorbs heat from the cold air through heat convection, and the calculation formula of the ventilation quantity is as follows:

in the formula (6), V is the ventilation amount, t ₃ For the preset inlet air temperature of the vehicle-mounted air conditioner, can be set according to actual conditions, c ₂ The specific heat capacity of air is 1.0kj/kg, and rho is the air density and is 1.09kg/m ³ . Based on the heat Q, the ventilation V can be obtained through solving.

in the formula (3), u is the wind speed of the vehicle-mounted air conditioner, and D is the diameter of the cooling hole, and may be 14mm, for example. And solving to obtain the wind speed u of the vehicle-mounted air conditioner.

When the target temperature control mode is the first cooling mode, the processor controls the vehicle-mounted air conditioner to start the cold air mode, the cooled temperature of the temperature controlled device is reduced through the cold air pipe, the processor can control the vehicle-mounted air conditioner to change the wind speed gear according to the calculated wind speed u, and then the wind speed u of the air conditioner is adjusted to reduce the temperature through the proper wind speed gear.

It can be seen that, in this embodiment, the processor may calculate the wind speed u of the vehicle-mounted air conditioner required by the temperature control of the vehicle-mounted device based on the above formula, and then may control the vehicle-mounted air conditioner to change the wind speed gear to heat or cool the temperature-controlled device with the appropriate wind speed u, and when the temperature-controlled device of the vehicle-mounted device is in a low-temperature or high-temperature state, the wind speed of the vehicle-mounted air conditioner is determined based on the difference between the target temperature and the current temperature, and then the efficiency of controlling the temperature is improved. When the temperature difference is large, the vehicle-mounted air conditioner can be controlled to raise the gear to increase the wind speed, and the temperature control efficiency of the temperature controlled device is improved; when the temperature difference is small, the vehicle-mounted air conditioner can be controlled to reduce the gear to reduce the wind speed, and the resource waste can be reduced.

As an implementation manner of the embodiment of the present invention, the cooling hole may have a first electrically controlled hole cover, the heating hole may have a second electrically controlled hole cover, and the processor is electrically connected to the first electrically controlled hole cover and the second electrically controlled hole cover, respectively, and may plug the cooling hole or the heating hole by controlling the electrically controlled hole covers.

Correspondingly, when the target temperature control mode is not the second heating mode, controlling a second electric control hole cover of the heating hole to be electrified so as to enable the second electric control hole cover to plug the heating hole; and/or the presence of a gas in the gas,

In one embodiment, the cooling hole may have a first electrically controlled hole cover, the heating hole may have a second electrically controlled hole cover, and the electrically controlled hole cover may be a spring hole cover, and the spring hole cover may be electrically connected, wherein the single turns of the spring are not in contact with or insulated from each other, when the spring is energized, the spring is equivalent to an energized solenoid, each turn of the spring is equivalent to a circular current, the direction of the current in each turn of the spring is the same, the currents in the same direction are mutually attracted, and the adjacent turns of the spring are mutually attracted, so that the spring hole cover can be contracted and block the heating hole or the cooling hole; when the power is off, the current in the spring disappears, correspondingly, the attraction force between every two adjacent turns of springs disappears, the spring is stretched to restore the original shape, the spring hole cover is separated from the heating hole or the cooling hole, the effect of opening the heating hole or the cooling hole is achieved, and then hot air or cold air can enter the vehicle-mounted equipment to heat or cool the temperature controlled device.

Therefore, when the target temperature control mode is not the second heating mode, the processor can control the spring hole cover of the heating hole to be electrified, and the spring hole cover contracts and blocks the heating hole; when the target temperature control mode is the second heating mode, the processor may control the spring hole cover of the heating hole to be powered off, so that the spring is extended, and the heating hole is opened. The inflow of hot air generated by the vehicle-mounted air conditioner can be controlled by controlling the power-on and power-off of the spring hole cover, so that the second heating mode is started and stopped.

Therefore, when the target temperature control mode is not the first cooling mode, the processor can control the spring hole cover of the cooling hole to be electrified, and the spring hole cover contracts and blocks the cooling hole; when the target temperature control mode is the first cooling mode, the processor can control the spring hole cover of the cooling hole to be powered off so as to extend the spring and open the cooling hole. The flowing-in of cold air generated by the vehicle-mounted air conditioner can be controlled by controlling the power-on and power-off modes of the spring hole cover, so that the starting and the closing of the first cooling mode are responded.

Therefore, in this embodiment, the processor can control the opening or closing of the heating hole and the cooling hole by controlling whether the electric control hole cover is electrified, and the on-board air conditioner hot air pipe or the cold air pipe is cooperatively utilized to heat or cool the temperature controlled device.

As an implementation manner of the embodiment of the present invention, the step of performing temperature control on the temperature-controlled device according to the target temperature control manner may include:

When the target temperature control mode is the second cooling mode, it is described that the temperature of the temperature controlled device is very high at this time, and the temperature needs to be cooled rapidly, so the processor can control the vehicle-mounted device to enter the energy saving mode. Specifically, the processor may control the in-vehicle device to turn off a preset function, and/or, lower a voltage of a power supply main power supply of the in-vehicle device. The preset function may be set according to an actual heating value, for example, the preset function may include a video entertainment system, and the like, which is not limited specifically herein. For example, the processor may send an energy saving command to the vehicle device host, notify the vehicle device host to reserve the meter-related circuits, and turn off unnecessary circuits, such as audiovisual entertainment system-related circuits.

In one embodiment, after the processor controls the vehicle-mounted device to close the preset function for a period of time, which may be 5 minutes, for example, the processor may obtain the current temperature of the temperature controlled device, and if the current temperature decreases, the processor may continue to close the preset function until the current temperature reaches the normal range; if the current temperature is not reduced, the voltage of a main power supply of the vehicle-mounted equipment can be reduced. For example, it may be lowered by 0.1V per minute and return to acquiring the current temperature of the temperature controlled device, and compare it with the current temperature acquired last time; if the current temperature is not reduced, the voltage of the main power supply of the vehicle-mounted equipment is continuously reduced, and if the current temperature is reduced, the voltage of the main power supply of the vehicle-mounted equipment can be stopped to be reduced until the current temperature reaches a normal range.

In another embodiment, when the target temperature control mode is the second cooling mode, the processor controls the vehicle-mounted device to turn off the preset function, and also controls the vehicle-mounted air conditioner to turn on the cold air mode, so as to cool the temperature controlled device through the cold air pipe, and enhance the cooling effect of the temperature controlled device.

Therefore, in this embodiment, when the target temperature control mode is the second cooling mode, the vehicle-mounted device is controlled to turn off the preset function, and/or the voltage of the power supply main power supply of the vehicle-mounted device is reduced, so as to rapidly cool the temperature controlled device.

As an implementation manner of the embodiment of the present invention, after the step of performing temperature control on the temperature-controlled device according to the target temperature control manner, the method may further include:

and returning to the step of acquiring the current temperature of the temperature controlled device in the vehicle-mounted equipment until the current temperature is in a preset normal temperature range.

After the temperature of the temperature-controlled device is controlled, the processor can acquire the current temperature of the temperature-controlled device in the vehicle-mounted equipment again to determine whether the temperature of the temperature-controlled device changes, and then correspondingly heat or cool the temperature-controlled device according to the acquired current temperature of the temperature-controlled device until the current temperature of the temperature-controlled device reaches a normal temperature range.

Therefore, in this embodiment, the processor may return to execute the step of obtaining the current temperature of the temperature-controlled device in the vehicle-mounted device until the current temperature is within the preset normal temperature range, so that the target temperature control mode and the temperature control effect can be conveniently adjusted in real time.

As an implementation manner of the embodiment of the present invention, a temperature sensor may be disposed at the temperature-controlled device, the processor is electrically connected to the temperature sensor, and a temperature signal acquired by the temperature sensor may be transmitted to the processor. Correspondingly, the step of obtaining the current temperature of the temperature-controlled device in the vehicle-mounted device may include:

and acquiring the current temperature acquired by a temperature sensor arranged at a temperature control device in the vehicle-mounted equipment.

In order to accurately obtain the current temperature of the temperature-controlled device, a temperature sensor may be disposed at the temperature-controlled device in the vehicle-mounted device, and the temperature sensor may be specifically a thermocouple temperature sensor, a thermal resistance temperature sensor, an analog temperature sensor, or the like, which is not specifically limited herein. The setting mode of the temperature sensor can be determined according to the actual structure, position and the like of the temperature controlled device, for example, the temperature sensor can be fixed on the temperature controlled device by adopting welding, bonding and other modes, or the temperature sensor is fixed in a certain range by the accessory of the temperature controlled device, as long as the temperature difference between the temperature collected by the temperature sensor and the actual temperature of the temperature controlled device does not exceed a preset threshold value.

For example, by analyzing the temperature rise risk degree of the sensitive point in the thermal simulation report of the vehicle-mounted device, it is obtained that the temperature rise risk of a certain capacitor in the circuit board of the vehicle-mounted device is high, and the capacitor may be burned out at 70 ℃, and a temperature sensor may be welded near the capacitor to collect the temperature of the capacitor. For another example, the liquid crystal display of the vehicle-mounted device has a low risk of temperature rise, but the liquid crystal display is very sensitive to temperature changes, and the service life of the liquid crystal display can be affected by small temperature changes.

Therefore, in this embodiment, the temperature sensor may be disposed at the temperature-controlled device, so that the processor may acquire the current temperature collected by the temperature sensor disposed at the temperature-controlled device in the vehicle-mounted device, and may accurately determine the current temperature of the temperature-controlled device, thereby ensuring the accuracy of subsequent temperature control.

An embodiment of the present invention further provides an electronic device, as shown in fig. 8, which includes a processor 801, a communication interface 802, a memory 803, and a communication bus 804, where the processor 801, the communication interface 802, and the memory 803 complete mutual communication through the communication bus 804,

a memory 803 for storing a computer program;

the processor 801 is configured to implement the method steps according to any of the above embodiments when executing the program stored in the memory 803.

The communication bus mentioned in the electronic device may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The communication bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown, but this does not mean that there is only one bus or one type of bus.

The communication interface is used for communication between the electronic equipment and other equipment.

The Memory may include a Random Access Memory (RAM) or a Non-Volatile Memory (NVM), such as at least one disk Memory. Optionally, the memory may also be at least one memory device located remotely from the processor.

The Processor may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; but also Digital Signal Processors (DSPs), application Specific Integrated Circuits (ASICs), field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components.

In a further embodiment of the present invention, a computer-readable storage medium is also provided, in which a computer program is stored, which, when being executed by a processor, implements the method steps of any of the above embodiments.

In a further embodiment provided by the present invention, there is also provided a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method steps of any of the embodiments described above.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the invention to be performed in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), among others.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the apparatus, the electronic device, the computer-readable storage medium, and the computer program product embodiments, since they are substantially similar to the method embodiments, the description is relatively simple, and reference may be made to some descriptions of the method embodiments for relevant points.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims

1. An in-vehicle apparatus characterized by comprising a processor and a temperature controlled device, wherein:

2. The in-vehicle apparatus according to claim 1,

the heating assembly is electrically connected with the processor, and the processor is used for controlling the heating assembly to be electrified and generate heat based on temperature input;

3. The in-vehicle apparatus according to claim 1 or 2, wherein the cooling hole has a first electrically controlled hole cover, and the heating hole has a second electrically controlled hole cover;

4. A method for controlling temperature of an in-vehicle device, the method comprising:

5. The method of claim 4, wherein the step of determining the target temperature control manner based on the current temperature and the corresponding relationship between the preset temperature range and the temperature control manner comprises:

determining the relationship between the current temperature and a preset first temperature threshold, a preset second temperature threshold, a preset third temperature threshold and a preset fourth temperature threshold, wherein the first temperature threshold, the preset second temperature threshold, the preset third temperature threshold and the preset fourth temperature threshold are sequentially increased;

6. The method of claim 5, wherein the step of temperature controlling the temperature-controlled device in accordance with the target temperature control manner comprises:

7. The method of claim 5, wherein the step of controlling the temperature of the temperature controlled device in accordance with the target temperature control manner comprises:

8. The method of claim 7, wherein determining the wind speed of the temperature control device comprises:

Q＝c ₁ m(t ₂ -t ₁ ) (1)

9. The method of claim 7, further comprising:

10. The method of claim 5, wherein the step of controlling the temperature of the temperature controlled device in accordance with the target temperature control manner comprises: