CN114030418A - Automatic heating demisting system and method for exterior mirror and vehicle - Google Patents
Automatic heating demisting system and method for exterior mirror and vehicle Download PDFInfo
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- CN114030418A CN114030418A CN202111352409.6A CN202111352409A CN114030418A CN 114030418 A CN114030418 A CN 114030418A CN 202111352409 A CN202111352409 A CN 202111352409A CN 114030418 A CN114030418 A CN 114030418A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
- B60R1/02—Rear-view mirror arrangements
- B60R1/06—Rear-view mirror arrangements mounted on vehicle exterior
- B60R1/0602—Rear-view mirror arrangements mounted on vehicle exterior comprising means for cleaning or deicing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/023—Cleaning windscreens, windows or optical devices including defroster or demisting means
- B60S1/026—Cleaning windscreens, windows or optical devices including defroster or demisting means using electrical means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/54—Cleaning windscreens, windows or optical devices using gas, e.g. hot air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/56—Cleaning windscreens, windows or optical devices specially adapted for cleaning other parts or devices than front windows or windscreens
- B60S1/60—Cleaning windscreens, windows or optical devices specially adapted for cleaning other parts or devices than front windows or windscreens for signalling devices, e.g. reflectors
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- Mechanical Engineering (AREA)
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- Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)
Abstract
The invention relates to a method for automatically heating and demisting an exterior mirror, which comprises the steps of judging the environment state of a vehicle; judging whether the vehicle enters an underground parking space or other parking places with higher environmental temperature; and controlling the exterior mirror heating module to execute the automatic opening and heating function of the exterior mirror. The fog of the rearview mirror can be reduced and eliminated as soon as possible when a driver drives to a parking space to carry out backing and locating, the temperature is increased in the shortest time, and the water fog on the surface of the mirror surface is eliminated as soon as possible; the lens heating device has the advantages that manual operation of a driver is not needed, the energy of the driver is not occupied, driving safety can be guaranteed, and the time from the time when a vehicle enters an underground parking space to the time when the vehicle runs to a target parking space is fully utilized to heat the lens; the method has the advantages of ingenious idea, low cost, full utilization of vehicle configuration functions, automatic judgment and starting of the rearview mirror heating function, realization of automatic defogging, no need of any operation of a driver, full utilization of vehicle configuration functions, more intelligentization and humanization of products, and obvious improvement of user experience and good feeling.
Description
Technical Field
The invention belongs to the technical field of electronic control of passenger vehicles, and particularly relates to an automatic heating demisting system for an exterior mirror, an automatic heating demisting method for the exterior mirror and a vehicle.
Background
Along with the ever-increasing automobile market demand, in order to increase the competitiveness of products, more and more brand motorcycle types are equipped with vehicle outside rear-view mirror heating function. The difference between the outdoor temperature in winter in the north and the temperature of underground parking spaces is large, particularly in the northeast, the outdoor temperature in winter is usually lower than-20 ℃, and the temperature of underground parking spaces is generally higher than 10 ℃. When a user drives a vehicle from the outside to an underground parking space, the surface temperature of the mirror surface of the exterior mirror is very low, and after the user encounters hot air in the underground parking space, water vapor in the air can form water mist on the surface of the mirror surface instantly to shield the rear observation view of the driver. In the northeast area, users entering public places such as own underground parking spaces or superstores can encounter the problem, once the outer rearview mirrors stay for a long time in a fogged state, the drivers can only manually start the rearview mirrors to heat the fogged state, wait for water mist on the mirror surfaces of the rearview mirrors to dissipate, or get off to clean the rearview mirrors and then pour the vehicle into the parking spaces. This problem often occurs, and is very disturbing to the driver, affecting the driving safety to a certain extent. Meanwhile, the outer rearview mirror is an important tool for a driver to observe the side and rear visual fields when the driver backs, and the rearview mirror is inconvenient to fog.
The prior art discloses an automatic defogging structure for an automobile rearview mirror. Including the rear-view mirror casing, one side of rear-view mirror casing is fixed with the connecting block, the interior bottom of rear-view mirror casing is equipped with the installation cavity, the motor cabinet is installed to the interior bottom of installation cavity, install driving motor on the motor cabinet, install the flabellum on driving motor's the output shaft, install the level crossing on the rear-view mirror casing, aluminium base board is installed to the interior bottom of level crossing, a plurality of parallel arrangement's electric heating wire is installed at aluminium base board's top, and is a plurality of electric heating wire's end to end and establish ties together, the mounting panel is installed at electric heating wire's top, the inside of connecting block is equipped with communicating pipe, the one end of communicating pipe extends to the inside of rear-view mirror casing, the other end of communicating pipe extends to the bottom of connecting block. Install the motor cabinet through the interior bottom of installation cavity, install driving motor on the motor cabinet, install the flabellum on driving motor's the output shaft, when electric heating wire heating, driving motor drives the flabellum and rotates to produce the air current, and then make the surface drying of level crossing.
The prior art also discloses an intelligent demisting exterior rearview mirror powered by a solar lithium ion battery, which comprises a rearview mirror shell, wherein the rearview mirror shell is provided with a shell and a rearview mirror, the shell is provided with a solar cell panel, the inner side wall of the rearview mirror is provided with a heating device, the shell is internally provided with a control device, a power supply device, a fan device and a temperature sensor, the fan device, the control device and the temperature sensor are all electrically connected with the power supply device, the power supply device is electrically connected with the solar cell panel, and one end of the rearview mirror is provided with an air outlet; the solar cell panel and the power supply device are arranged, so that reasonable utilization of energy and reduction of energy consumption are facilitated; set up the air exit through rear-view mirror one end, set up fan unit in the casing, be favorable to accelerating the defogging effect, through set up controlling means, power supply unit, fan unit and temperature sensor in the casing, be favorable to improving the effect of defogging and the degree of intelligent defogging.
The prior art also discloses a novel rearview mirror that can automatic defogging, including lens, draw-in groove, wind channel, breakwater and fuselage, the centre of draw-in groove is equipped with the lens, and the lens inlays with the draw-in groove at upper and lower both ends and be connected, and the upper and lower both ends of draw-in groove are equipped with the wind channel, and the wind channel all with fuselage fixed connection, the left side in wind channel is equipped with the breakwater respectively, and the breakwater all with fuselage fixed connection. This kind of novel rear-view mirror that can automatic defogging passes through the improvement of structure, make this device when in-service use, the automobile-used rear-view mirror that has improved the market only possesses the phenomenon of swing and reflection of light function, modern consumer's demand to equipment has been satisfied, the problem of rear-view mirror defogging time of a specified duration and unable timely getting rid of fog has been solved, driver's sight is avoided being obstructed, be unfavorable for the problem of in-service use, the problem of the impaired messenger's equipment damage of inside part easy vibrations has been solved, and then the novel rear-view mirror quality of automatic defogging has been improved, make things convenient for driver's use.
The prior art also discloses an automobile rearview mirror defogging system, including the installation casing of installation rear-view mirror, still include an air duct that leads to casing and vehicle air conditioner air-out pipeline, the air outlet setting of air duct is on the frame of the installation rear-view mirror body of casing. Through installation intercommunication automobile rearview mirror module and vehicle air conditioning system, realize on-vehicle air conditioner to the automobile rearview mirror defogging, simple structure easily realizes, maintains the facility moreover, can not arouse whole car circuit trouble.
However, the above technical solutions all provide a new heating or ventilating structure for the rearview mirror, and the heating or ventilating structure for the rearview mirror can not realize the automatic defogging function by heating or ventilating the rearview mirror, and still requires the driver to manually turn on the heating or ventilating switch. At present, the heating function of the external rear-view mirror of the vehicle is turned on and off by a key or a knob integrated on an internal external rear-view mirror adjusting switch assembly, and the heating function can only be turned on manually by a driver. When the outside rearview mirror has water drops on the mirror or the mirror is fogged in the driving process in rainy days, a driver can manually start the rearview mirror heating function. Because of the limited heating power of outside rear-view mirror, the preheating process needs certain time, if the rear-view mirror hazes in the twinkling of an eye, the driver goes to manually turn on the rear-view mirror heating again, often needs to wait for, brings inconvenience for the driver to influence driving safety. For this reason, it is necessary to establish an automatic defogging method for the exterior mirror, but the prior art proposals have been to defogg the exterior mirror by increasing the heating capacity of the mirror surface or ventilating the mirror surface, and have not realized the automatic defogging.
Disclosure of Invention
The invention aims to provide an automatic heating demisting system for an exterior mirror, and also provides an automatic heating demisting method for the exterior mirror and a vehicle, so as to solve the problem of realizing quick demisting by automatically starting a heating function of the exterior mirror by judging the change condition of the external environment temperature, realize real automatic demisting, and realize real automatic demisting when instantaneous fogging of the exterior mirror occurs, a driver needs to do not need to manually start the exterior mirror, and the exterior mirror can be quickly and automatically started in time.
The purpose of the invention is realized by the following technical scheme:
an automatic heating defogging method for an exterior mirror comprises the following steps:
A. judging the environmental state of the vehicle
Whether the vehicle soaks for a long time in a low-temperature environment or runs for a long time in the low-temperature environment is judged through vehicle state signals and vehicle outside temperature detection, and whether the mirror surface of the outside rear-view mirror is in the low-temperature state or not is determined as a first judgment condition whether the outside rear-view mirror is automatically opened or not;
B. judging whether the vehicle enters an underground parking space or other parking places with higher environmental temperature by monitoring the change condition of the environmental temperature outside the vehicle, wherein the judgment condition is used as a second judgment condition for judging whether the exterior rearview mirror is automatically opened;
C. controlling an exterior mirror heating module to execute an exterior mirror automatic starting heating function; when the state of the environment where the vehicle is located and the temperature outside the vehicle are greatly changed, if the two judgment conditions are met, the vehicle control unit sends a signal instruction, automatically starts the heating module of the rearview mirror outside the vehicle, heats the mirror surface, and achieves the effect of heating in advance and demisting as soon as possible; otherwise, the exterior mirror keeps the original state when the two conditions are not met.
Further, step A, the vehicle state signal is obtained by an engine speed signal sensor to monitor the vehicle state signal.
In step a, the vehicle outside temperature is detected by acquiring a vehicle outside temperature through a vehicle outside temperature sensor, and monitoring a vehicle state signal.
Further, step A, when the vehicle is immersed in the low-temperature environment for a long time, the vehicle controller collects the temperature sensor signals outside the vehicle carried by the original vehicle, monitors and records the temperature outside the vehicle before the vehicle is flamed out, and the temperature outside the vehicle when the vehicle is electrified again or the engine is started; if the temperature records of two adjacent times are in a low-temperature state, and the interval time between the temperature records of two times exceeds 2 hours, judging that the vehicle is in a low-temperature environment for a long time; if one of the above conditions is not satisfied, it is determined that the vehicle is not in a low-temperature environment at the previous time.
Furthermore, the vehicle control unit is provided with a storage and logic processing unit which can perform storage and logic judgment and calculate the time interval between two temperature records.
Further, the low temperature state is-10 ℃ or lower.
Further, step A, when the vehicle runs for a long time in a low-temperature environment, the judgment is carried out through an external temperature sensor and an engine rotating speed signal, the engine rotating speed signal is the basis of the running of the vehicle, the external temperature sensor continuously detects the external temperature condition, and the controller continuously receives external temperature data and the engine rotating speed signal to judge that the vehicle continuously runs in the low-temperature environment.
Further, step B specifically comprises: after the condition that the vehicle is in a low-temperature environment for a long time is met, the vehicle control unit collects signals of a vehicle-outside temperature sensor carried by the original vehicle, and when the monitored vehicle-outside temperature is rapidly increased from below zero to above zero, the vehicle is judged to enter an underground parking space or other parking places with higher environmental temperature.
An automatic heating and demisting system for an exterior mirror is composed of an engine rotating speed signal sensor, a vehicle control unit, an exterior temperature sensor and an exterior mirror heating module;
the engine rotating speed signal sensor is used for acquiring an engine rotating speed signal;
the vehicle external temperature sensor is used for acquiring the vehicle external temperature;
the whole vehicle controller is provided with a storage and logic processing unit for storage and logic judgment and calculating the time interval of two temperature recording;
the exterior rearview mirror heating module is integrated on a rearview mirror lens, the resistance wire heats the lens after being electrified, and the lens is demisted after being heated.
A vehicle, characterized by comprising: the automatic heating and demisting system for the exterior rearview mirror is disclosed.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the rapid change condition of the outside temperature is identified, the system judges, and the outside rearview mirror heating function can be automatically started when the outside temperature meets the working condition, so that the operation of a driver is reduced, the rearview mirror can be timely heated, and when the driver drives to a parking space to carry out backing and parking, the fog of the rearview mirror can be reduced and eliminated as soon as possible;
by adopting the method for automatically heating and demisting the exterior mirror, when the exterior mirror is instantly fogged, the heating function of the exterior mirror can be quickly and automatically started, the temperature of the mirror piece of the exterior mirror is ensured to be raised in the shortest time, and the water mist on the surface of the mirror surface is eliminated as soon as possible; the lens heating device has the advantages that manual operation of a driver is not needed, the energy of the driver is not occupied, driving safety can be better guaranteed, and the time from the time when a vehicle enters an underground parking space to the time when the vehicle runs to a target parking space is fully utilized to heat the lens;
the method has the advantages of ingenious idea, low cost, full utilization of the vehicle configuration function, automatic judgment and automatic starting of the rearview mirror heating function, real realization of the automatic defogging function, no need of any operation of a driver, full utilization of the vehicle configuration function, more intellectualization and humanization of the product, and obvious improvement of the good feeling of user experience.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a flow chart of the heating function of automatically turning on the exterior mirror.
Detailed Description
The invention is further illustrated by the following examples:
the present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
The invention provides an automatic heating demisting method for an exterior mirror based on analysis of actual driving scenes of users in winter in the north. The method realizes the automatic starting of the heating function of the exterior mirror by judging the vehicle state and identifying the change condition of the exterior temperature.
The method comprises the following steps:
firstly, the environmental state of the vehicle is judged, whether the vehicle is stopped for a long time or runs in a low-temperature environment is judged through a vehicle state signal and the detection of the temperature outside the vehicle, and whether the mirror surface of the outside rear view mirror is in a low-temperature state is determined based on the judgment, which is a first judgment condition whether the outside rear view mirror is automatically turned on.
Secondly, whether the vehicle enters an underground parking space or other parking places with higher environmental temperature is judged by monitoring the change condition of the environmental temperature outside the vehicle, and the judgment condition is a second judgment condition whether the exterior rearview mirror is automatically opened. The temperature monitoring is carried out by utilizing an external environment temperature sensor of the vehicle.
And finally, controlling the exterior mirror heating module to execute the automatic opening and heating function of the exterior mirror. When the environment state of the vehicle and the temperature outside the vehicle are greatly changed, if the two conditions are met, the vehicle control unit sends a signal instruction, the heating function of the rearview mirror outside the vehicle is automatically started, the mirror surface is heated, and the defogging function of heating as soon as possible is achieved. Otherwise, the exterior mirror keeps the original state when the two conditions are not met.
Specifically, as shown in fig. 1, the method for automatically heating and defogging the exterior mirror provided by the invention comprises the following steps:
A. and judging the environmental state of the vehicle. The engine rotating speed signal and the temperature outside the vehicle are respectively obtained by the engine rotating speed signal sensor and the temperature outside the vehicle, and the vehicle state signal is monitored. One case is that the vehicle soaks for a long time in a low-temperature environment, and the other case is that the vehicle runs for a long time in a low-temperature environment, and both cases determine that the vehicle is in the low-temperature environment for a long time, which is a precondition for automatically turning on the heating function of the outside rearview mirror.
In the first case: the vehicle control unit collects the signals of the temperature sensor outside the vehicle carried by the original vehicle, monitors and records the temperature outside the vehicle before the vehicle is flamed out, and monitors and records the power-on state of the whole vehicle again or the temperature outside the vehicle when the engine is started. And if the temperature records of two adjacent times are in a low temperature state (-below 10 ℃), and the time interval between the two temperature records exceeds 2 hours, judging that the vehicle is in a low temperature environment (-below 10 ℃) for a long time. If one of the above conditions is not satisfied, it is determined that the vehicle is not in a low temperature environment (-10 ℃ or lower) at the previous time.
The whole vehicle controller is provided with a storage and logic processing unit, can perform storage and logic judgment, and calculates the time interval of two temperature recording.
In the second case: the external temperature sensor and the engine speed signal are used for judging, the engine speed signal is the basis for the running of the vehicle, the external temperature sensor is used for continuously detecting the external temperature condition, and the controller is used for continuously receiving the external temperature data and the engine speed signal, so that the vehicle can be judged to continuously run in a low-temperature environment.
B. And monitoring the temperature change condition outside the vehicle. After the condition that the vehicle is in a low-temperature environment for a long time is met, the vehicle control unit collects signals of a vehicle-outside temperature sensor carried by the original vehicle, and when the monitored vehicle-outside temperature is rapidly increased from below zero to above zero, the vehicle is judged to enter an underground parking space or other parking places with higher environmental temperature.
C. And controlling the exterior mirror heating module. When the environment of the vehicle is a long-time low-temperature environment and the temperature outside the vehicle is rapidly increased to the temperature above zero, the vehicle control unit controls the heating module of the exterior mirror to automatically open so as to heat the lens of the exterior mirror. Otherwise, the state of the exterior mirror is kept unchanged.
And when the rearview mirror reaches the heating temperature limit value, the rearview mirror is automatically closed.
According to the invention, A, B two steps are used for automatically starting the key points of the rearview mirror heating judgment conditions, accurately judging the vehicle and environment change states, and quickly starting the rearview mirror heating function, so that the temperature of the rearview mirror is ensured to be raised in the shortest time, the water mist on the surface of the mirror surface is eliminated as soon as possible, the manual operation of a driver is not needed, the energy of the driver is not occupied, and the driving safety can be better ensured.
The method can realize the function of quickly and automatically starting the heating of the rearview mirror, ensure that the temperature of the rearview mirror is increased in the shortest time and eliminate the water mist on the surface of the mirror surface as soon as possible. Guaranteed under northern area environment in winter, when the vehicle drove into underground parking stall outside of the vehicle rear-view mirror fog in the twinkling of an eye, control system can accurately judge and in time open outside of the vehicle rear-view mirror heating function, eliminates rear-view mirror surface water smoke fast, reduces driver's operation action, does not occupy driver's energy, can better guarantee driving safety.
The invention relates to an automatic heating and demisting system for an exterior mirror, which consists of an engine rotating speed signal sensor, a vehicle control unit, an exterior temperature sensor and an exterior mirror heating module.
The existing vehicles are equipped with engine speed signals, external temperature sensors and a vehicle control unit when leaving a factory, and the engine speed signals, the external temperature sensors and the vehicle control unit can be directly borrowed, and the engine speed signals, the external temperature sensors and the vehicle control unit are connected through a wire harness.
The exterior rearview mirror heating module is integrated on a rearview mirror lens, the resistance wire heats the lens after being electrified, and the lens reaches a demisting effect after being heated. In the prior art, many high-mix vehicles are equipped with heating modules, but need to be manually turned on by the driver. The invention has the difference that the automatic heating control can be realized, and the original vehicle heating module can be directly called.
Example 1
An automatic heating defogging method for an exterior mirror comprises the following steps:
judging the environmental state of the vehicle
The engine rotating speed signal and the temperature outside the vehicle are respectively obtained by the engine rotating speed signal sensor and the temperature outside the vehicle, and the vehicle state signal is monitored. The vehicle controller collects the signals of the vehicle outside temperature sensor carried by the original vehicle, monitors and records the vehicle outside temperature before the vehicle is flamed out, monitors and records the vehicle electrifying state again or the vehicle outside temperature when the engine is started, is internally provided with a storage and logic processing unit, can carry out storage and logic judgment, and calculates the time interval of two temperature recording.
According to the monitoring result, the temperature records of two adjacent times are in a low-temperature state (below minus 10 ℃), the interval time between the temperature records of two times exceeds 2 hours, the vehicle is judged to be in a low-temperature environment (below minus 10 ℃) for a long time, and the vehicle is known to be immersed in the low-temperature environment for a long time, which is a precondition for automatically starting the heating function of the rearview mirror outside the vehicle.
And monitoring the temperature change condition outside the vehicle. After the condition that the vehicle is in a low-temperature environment for a long time is met, the vehicle control unit collects signals of a vehicle-outside temperature sensor carried by the original vehicle, and when the monitored vehicle-outside temperature is rapidly increased from below zero to above zero, the vehicle is judged to enter an underground parking space or other parking places with higher environmental temperature.
And controlling the exterior mirror heating module. When the environment of the vehicle is a long-time low-temperature environment and the temperature outside the vehicle is rapidly increased to the temperature above zero, the vehicle control unit controls the heating module of the exterior mirror to automatically open so as to heat the lens of the exterior mirror. The exterior rearview mirror heating module is integrated on a rearview mirror lens, the resistance wire heats the lens after being electrified, and the lens reaches a demisting effect after being heated. Otherwise, the state of the exterior mirror is kept unchanged. And when the rearview mirror reaches the heating temperature limit value, the rearview mirror is automatically closed.
Example 2
An automatic heating defogging method for an exterior mirror comprises the following steps:
and judging the environmental state of the vehicle. The engine rotating speed signal and the temperature outside the vehicle are respectively obtained by the engine rotating speed signal sensor and the temperature outside the vehicle, and the vehicle state signal is monitored. The external temperature sensor and the engine speed signal are used for judging, the engine speed signal is the basis for the running of the vehicle, the external temperature sensor is used for continuously detecting the external temperature condition, the controller continuously receives the external temperature data and the engine speed signal, and then the vehicle can be judged to continuously run in a low-temperature environment, namely the vehicle runs in the low-temperature environment for a long time, and the external temperature sensor and the engine speed signal are the precondition for automatically starting the heating function of the external rearview mirror.
And monitoring the temperature change condition outside the vehicle. After the condition that the vehicle is in a low-temperature environment for a long time is met, the vehicle control unit collects signals of a vehicle-outside temperature sensor carried by the original vehicle, and when the monitored vehicle-outside temperature is rapidly increased from below zero to above zero, the vehicle is judged to enter an underground parking space or other parking places with higher environmental temperature.
And controlling the exterior mirror heating module. When the environment of the vehicle is a long-time low-temperature environment and the temperature outside the vehicle is rapidly increased to the temperature above zero, the vehicle control unit controls the heating module of the exterior mirror to automatically open so as to heat the lens of the exterior mirror. The exterior rearview mirror heating module is integrated on a rearview mirror lens, the resistance wire heats the lens after being electrified, and the lens reaches a demisting effect after being heated. Otherwise, the state of the exterior mirror is kept unchanged. And when the rearview mirror reaches the heating temperature limit value, the rearview mirror is automatically closed.
After the vehicle runs for a long time in winter, the vehicle enters an underground garage, because the temperature of the garage is much higher than that of the outside of the garage, the exterior rearview mirrors can quickly fog, the whole vehicle controller judges that the vehicle runs outdoors for a long time through the signals of the engine speed signal sensor and the signals of the exterior temperature sensor, the temperature value of the exterior temperature sensor is increased after the vehicle enters the underground garage, the whole vehicle controller receives the temperature rising signals, judges and sends out an instruction heating instruction, and the rearview mirror heating module starts heating to realize the automatic demisting effect.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. The automatic heating defogging method for the exterior rearview mirror is characterized by comprising the following steps of:
A. judging the environmental state of the vehicle
Whether the vehicle soaks for a long time in a low-temperature environment or runs for a long time in the low-temperature environment is judged through vehicle state signals and vehicle outside temperature detection, and whether the mirror surface of the outside rear-view mirror is in the low-temperature state or not is determined as a first judgment condition whether the outside rear-view mirror is automatically opened or not;
B. judging whether the vehicle enters an underground parking space or other parking places with higher environmental temperature by monitoring the change condition of the environmental temperature outside the vehicle, wherein the judgment condition is used as a second judgment condition for judging whether the exterior rearview mirror is automatically opened;
C. controlling an exterior mirror heating module to execute an exterior mirror automatic starting heating function; when the state of the environment where the vehicle is located and the temperature outside the vehicle are greatly changed, if the two judgment conditions are met, the vehicle control unit sends a signal instruction, automatically starts the heating module of the rearview mirror outside the vehicle, heats the mirror surface, and achieves the effect of heating in advance and demisting as soon as possible; otherwise, the exterior mirror keeps the original state when the two conditions are not met.
2. The automatic heating defogging method for the exterior rearview mirror as claimed in claim 1, wherein: and step A, the vehicle state signal is obtained through an engine rotating speed signal sensor to monitor the vehicle state signal.
3. The automatic heating defogging method for the exterior rearview mirror as claimed in claim 1, wherein: and step A, the detection of the temperature outside the vehicle is to acquire the temperature outside the vehicle through a temperature sensor outside the vehicle and monitor a vehicle state signal.
4. The automatic heating defogging method for the exterior rearview mirror as claimed in claim 1, wherein: step A, when a vehicle is immersed for a long time in a low-temperature environment, a vehicle controller collects the signals of an external temperature sensor carried by the original vehicle, monitors and records the external temperature of the vehicle before the vehicle is flamed out, and the external temperature of the vehicle when the vehicle is electrified again or the engine is started; if the temperature records of two adjacent times are in a low-temperature state, and the interval time between the temperature records of two times exceeds 2 hours, judging that the vehicle is in a low-temperature environment for a long time; if one of the above conditions is not satisfied, it is determined that the vehicle is not in a low-temperature environment at the previous time.
5. The automatic heating defogging method for the exterior rearview mirror as claimed in claim 4, wherein: the whole vehicle controller is provided with a storage and logic processing unit, can perform storage and logic judgment, and calculates the time interval of two temperature recording.
6. The automatic heating defogging method for the exterior rearview mirror as claimed in claim 5, wherein: the low temperature state is below-10 ℃.
7. The automatic heating defogging method for the exterior rearview mirror as claimed in claim 1, wherein: step A, when the vehicle runs for a long time in a low-temperature environment, judging through an outside temperature sensor and an engine rotating speed signal, wherein the engine rotating speed signal is a basis for running the vehicle, the outside temperature sensor is used for continuously detecting the outside temperature condition, and the controller can judge that the vehicle continuously runs in the low-temperature environment by continuously receiving outside temperature data and the engine rotating speed signal.
8. The automatic heating defogging method for the exterior rearview mirror according to claim 1, wherein the step B comprises the following specific steps: after the condition that the vehicle is in a low-temperature environment for a long time is met, the vehicle control unit collects signals of a vehicle-outside temperature sensor carried by the original vehicle, and when the monitored vehicle-outside temperature is rapidly increased from below zero to above zero, the vehicle is judged to enter an underground parking space or other parking places with higher environmental temperature.
9. The utility model provides a system of outside rear-view mirror self-heating defogging which characterized in that: the system consists of an engine rotating speed signal sensor, a vehicle control unit, an outside temperature sensor and an outside rearview mirror heating module;
the engine rotating speed signal sensor is used for acquiring an engine rotating speed signal;
the vehicle external temperature sensor is used for acquiring the vehicle external temperature;
the whole vehicle controller is provided with a storage and logic processing unit for storage and logic judgment and calculating the time interval of two temperature recording;
the exterior rearview mirror heating module is integrated on a rearview mirror lens, the resistance wire heats the lens after being electrified, and the lens is demisted after being heated.
10. A vehicle, characterized by comprising: an automatic heating defogging system for exterior mirrors as recited in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111352409.6A CN114030418A (en) | 2021-11-16 | 2021-11-16 | Automatic heating demisting system and method for exterior mirror and vehicle |
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| CN114590225A (en) * | 2022-03-14 | 2022-06-07 | 中国第一汽车股份有限公司 | Rearview mirror heating method and device, vehicle and storage medium |
| CN115230637A (en) * | 2022-08-18 | 2022-10-25 | 中国第一汽车股份有限公司 | Vehicle window heating control method and device and vehicle |
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