CN113370936A - Vehicle, automatic wiper system for vehicle and control method thereof - Google Patents
Vehicle, automatic wiper system for vehicle and control method thereof Download PDFInfo
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- CN113370936A CN113370936A CN202110646556.8A CN202110646556A CN113370936A CN 113370936 A CN113370936 A CN 113370936A CN 202110646556 A CN202110646556 A CN 202110646556A CN 113370936 A CN113370936 A CN 113370936A
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- vehicle
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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
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
- B60S1/08—Wipers or the like, e.g. scrapers characterised by the drive electrically driven
- B60S1/0818—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like
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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
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
- B60S1/08—Wipers or the like, e.g. scrapers characterised by the drive electrically driven
- B60S1/0818—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like
- B60S1/0822—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to external conditions, e.g. by detection of moisture, dirt or the like characterized by the arrangement or type of detection 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
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
- B60S1/08—Wipers or the like, e.g. scrapers characterised by the drive electrically driven
- B60S1/0896—Wipers or the like, e.g. scrapers characterised by the drive electrically driven including control systems responsive to a vehicle driving condition, e.g. speed
Abstract
The invention discloses a vehicle automatic wiper system, a control method and a computer readable storage medium thereof, wherein the system comprises: the V2X vehicle-mounted communication unit is used for outputting a wiper speed-up instruction when the fact that the current road section has the overrunning vehicle driving condition is determined through the obtained vehicle information and other vehicle information of the current road section; the automobile body control unit is respectively connected with the V2X vehicle-mounted communication unit, the rainfall sensing unit and the wiper motor, determines the target wiping speed of the wiper according to the current rainfall information, controls the wiper motor according to the target wiping speed, and controls the wiper motor to increase the target wiping speed by controlling the wiper motor when receiving a wiper speed increasing instruction sent by the V2X vehicle-mounted communication unit. Therefore, when a special driving condition occurs, the automatic wiper system of the vehicle can realize predictive automatic control, control the wiping speed of the wiper in advance, ensure the clear visual field of a driver and further improve the driving safety.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to an automatic wiper system of a vehicle, a control method of the automatic wiper system of the vehicle and the vehicle.
Background
In order to ensure the driving safety of a driver in rainy and snowy weather, most current vehicles are provided with electric wipers, the driver can control the on and off of the electric wipers through a switch, and the wiping speed can be controlled by adjusting gears, so that the requirements of different weather conditions are met. Along with the development of science and technology, many motorcycle types have been equipped with the auto-induction wiper, and the rainfall size of drippage on the windshield through the rainfall sensor perception utilizes the automatic control technique, realizes the automatic control to the wiper motor, including opening/closing, scrapes the regulation etc. of brushing speed.
Although the automatic wiper adopting the working principle can meet the requirements of most driving scenes, in the automatic control mode, after the rainfall which needs to drop on the windshield reaches a certain magnitude, the wiper motor starts automatic control, certain hysteresis exists, and predictability is lacked, so that the visual field blind area appears for a short time in certain specific driving scenes, for example, when a driver overtakes in rainy and snowy weather at a high speed, because the accumulated water or the accumulated snow on the windshield suddenly increases, and certain potential safety hazards are brought to driving.
Disclosure of Invention
The present application is made based on the recognition and study of the following problems by the inventors:
in the related art, when a vehicle is in a certain driving scene, for example, when the vehicle is driven in a high speed in a small rainy day, the large vehicle can carry large rain fog, which is different from natural rainfall, and the rain fog is suddenly generated in the overtaking process, so that the water accumulation amount on the windshield is suddenly increased, but the conventional automatic wiper has a certain hysteresis, the automatic wiping speed is set according to the natural rainfall before overtaking, the automatic wiper at the speed cannot timely clear the suddenly increased water amount on the windshield caused by overtaking, and a driver is often in a short visual field 'blind area' in the period and cannot obtain a clear visual field, so that certain potential safety hazards exist.
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, one object of the present invention is to provide an automatic wiper system for a vehicle, which determines, through a V2X vehicle-mounted communication unit, that a wiping speed of a wiper is adjusted in advance when a current driving condition of the vehicle is exceeded, so that the wiper can timely treat suddenly increased water on a windshield, and the problem that when the vehicle is driven at a high speed in a rainy or snowy weather, the water on the windshield suddenly increases due to overtaking, and the wiper does not timely adjust the wiping speed, so that a short-term view blind area of a driver is caused is solved, the intelligentization degree of the automatic wiper for the vehicle is improved, and the driving experience and the driving safety of the driver are improved.
A second object of the present invention is to provide a vehicle having the automatic wiper system mounted thereon.
A third object of the present invention is to provide a control method of an automatic wiper system for a vehicle.
A fourth object of the invention is to propose a computer-readable storage medium.
To achieve the above object, an embodiment of a first aspect of the present invention provides an automatic wiper system for a vehicle, including: a V2X (Vehicle-to-event) Vehicle-mounted communication unit, wherein the V2X Vehicle-mounted communication unit is used for obtaining Vehicle information and other Vehicle information of a current road section, and outputting a wiper acceleration instruction when the current road section is determined to have an beyond Vehicle driving condition according to the other Vehicle information and the Vehicle information; the rainfall sensing unit is used for sensing current rainfall information; a wiper motor; the vehicle body control unit is respectively connected with the V2X vehicle-mounted communication unit, the rainfall sensing unit and the wiper motor, the vehicle body control unit determines the target wiping speed of a wiper according to the current rainfall information, controls the wiper motor according to the target wiping speed, and controls the wiper motor to increase the target wiping speed by controlling the wiper motor when receiving a wiper speed increasing instruction sent by the V2X vehicle-mounted communication unit.
The automatic wiper system for the vehicle comprises a V2X vehicle-mounted communication unit, a rainfall sensing unit, a wiper motor and a vehicle body control unit, wherein the V2X vehicle-mounted communication unit is connected with the vehicle body control unit and used for sending the acquired vehicle information and other vehicle information of the current road section to the vehicle body control unit after processing; the rainfall sensing unit is connected with the vehicle body control unit, the acquired rainfall information is transmitted to the vehicle body control unit, at the moment, the vehicle body control unit processes the information acquired from the V2X vehicle-mounted communication unit and the rainfall sensing unit, and sends a processing instruction to a wiper motor connected with the vehicle body control unit, so that the control of the wiping speed of a wiper is completed.
Therefore, the automatic wiper system for the vehicle, provided by the embodiment of the invention, judges whether the vehicle runs in the current road section beyond the driving condition of the vehicle through the V2X vehicle-mounted communication unit, and adjusts the wiping speed of the wiper in advance when the vehicle runs in the current road section beyond the driving condition of the vehicle, so that the wiper can timely treat suddenly-increased accumulated water on the windshield, the problem that the driver has short-term view blind area due to the fact that the wiper does not timely adjust the wiping speed because the accumulated water on the windshield suddenly increases when the vehicle runs at high speed in rainy and snowy weather is solved, the intelligent degree of the automatic wiper for the vehicle is improved, and the driving experience and the driving safety of the driver are improved.
In addition, the automatic wiper system for a vehicle according to the above embodiment of the present invention may further have the following additional technical features:
according to one embodiment of the invention, the vehicle body control unit is further configured to acquire a vehicle speed of the vehicle upon receiving a wiper speed increase instruction sent by the V2X vehicle-mounted communication unit, and control a magnitude of increase of the target wiper speed according to the vehicle speed of the vehicle, wherein the magnitude of increase of the target wiper speed is larger as the vehicle speed of the vehicle is higher.
According to one embodiment of the invention, the vehicle automatic wiper system is characterized in that the V2X vehicle-mounted communication unit is further used for determining that the overtaking vehicle driving condition exists in the current road section when the large vehicle exists in the front adjacent lane, the longitudinal collision time is less than the first preset time and the current vehicle speed is greater than the first preset speed according to the other vehicle information and the own vehicle information.
According to an embodiment of the invention, the V2X car-mounted communication unit is further configured to determine that there is an overtaking vehicle driving condition in the current road segment when it is determined that there is a large vehicle in a rear adjacent lane, a distance between the large vehicle and the vehicle in a forward direction is smaller than a first preset distance, and a vehicle speed of the large vehicle is greater than a vehicle speed of the vehicle according to the other vehicle information and the vehicle information.
According to an embodiment of the invention, the V2X car-mounted communication unit is further configured to determine that there is an overtaking vehicle driving condition in the current road segment when it is determined that there is a large vehicle in a rear adjacent lane, a distance between the large vehicle and the vehicle in a forward direction is smaller than a first preset distance, and a vehicle speed of the large vehicle is greater than a vehicle speed of the vehicle according to the other vehicle information and the vehicle information.
To achieve the above object, an embodiment of a second aspect of the present invention proposes a vehicle including the vehicle automatic wiper system as in the above embodiments.
According to the vehicle provided by the embodiment of the invention, the automatic wiper system of the vehicle can eliminate short-time view blind areas caused by overtaking in the case of high-speed driving in rainy and snowy weather, so that the intelligent degree of the automatic wiper of the vehicle is improved, and the driving experience and the driving safety of a driver are improved.
To achieve the above object, a third aspect of the present invention provides a control method of an automatic wiper system for a vehicle, the method including: acquiring vehicle information and other vehicle information of a current road section through a vehicle-mounted V2X communication unit of a vehicle, and outputting a wiper speed-up instruction when the current road section is determined to have an overrunning vehicle driving condition according to the other vehicle information and the vehicle information; sensing current rainfall information; determining a target wiping speed of a wiper according to the current rainfall information, controlling a wiper motor according to the target wiping speed, and controlling the wiper motor to increase the target wiping speed when receiving a wiper speed increasing instruction sent by the V2X vehicle-mounted communication unit.
According to the control method of the automatic wiper system of the vehicle, the vehicle information and other vehicle information of the same road section are obtained from the V2X vehicle-mounted communication unit of the vehicle, whether the driving condition of the vehicle surpasses the current road section or not is judged according to the obtained vehicle information and other vehicle information, a wiper speed-up instruction is output when the driving condition of the vehicle surpassing the current road section is determined, meanwhile, the rainfall information is sensed, the target wiping speed of the wiper is obtained according to the current rainfall information, and in the process of controlling the wiper motor according to the target wiping speed, the wiper motor is controlled to improve the target wiping speed when the wiper speed-up instruction sent by the V2X vehicle-mounted communication unit is received, so that the wiper can timely treat the suddenly increased accumulated water on the windshield, and the problem that the vehicle runs at high speed in rainy and snowy days is solved, because of ponding sudden increase on the windshield that the overtaking led to, the wiper does not in time adjust and scrapes the brush speed to lead to the problem of the field of vision blind area when the driver is short, improved the intelligent degree of the automatic wiper of vehicle, promoted driver's driving experience and driving safety nature.
In addition, the control method of the automatic wiper system for a vehicle according to the above-described embodiment of the present invention may further have the following additional technical features:
according to one embodiment of the invention, the control method of the automatic wiper system of the vehicle further acquires the vehicle speed when receiving the wiper acceleration instruction sent by the V2X vehicle-mounted communication unit, and controls the increase amplitude of the target wiping speed according to the vehicle speed, wherein the increase amplitude of the target wiping speed is larger as the vehicle speed is higher.
According to one embodiment of the invention, determining that the current road section has the overtaking vehicle driving condition according to the other vehicle information and the own vehicle information comprises the following steps: and judging whether large vehicles exist in the front adjacent lane, the longitudinal collision time is less than first preset time and the current speed is greater than first preset speed according to the other vehicle information and the own vehicle information, and determining that the overtaking vehicle driving condition exists in the current road section.
According to one embodiment of the invention, determining that the current road section has the overtaking vehicle driving condition according to the other vehicle information and the own vehicle information comprises the following steps: and determining that the overtaking vehicle driving condition exists in the current road section when the large vehicle exists in the rear adjacent lane, the distance between the large vehicle and the self vehicle in the advancing direction is smaller than a first preset distance and the vehicle speed of the large vehicle is greater than the vehicle speed of the self vehicle according to the other vehicle information and the self vehicle information.
To achieve the above object, a third aspect embodiment of the present invention proposes a computer-readable storage medium having stored thereon a control program of a vehicle automatic wiper system that, when executed by a processor, implements the control method of the vehicle automatic wiper system of the above-described embodiment.
According to the computer-readable storage medium of the embodiment of the invention, when the stored control program of the automatic wiper system of the vehicle is executed by the processor, the wiper can timely process the suddenly increased water accumulation on the windshield by executing the control method of the automatic wiper system of the vehicle of the embodiment, so that the problem that the water accumulation on the windshield suddenly increases due to overtaking and the wiper does not timely adjust the wiping speed when the vehicle runs at a high speed in the rainy and snowy weather, thereby causing a short-term view blind area of a driver is solved, the intelligent degree of the automatic wiper of the vehicle is improved, and the driving experience and the driving safety of the driver are improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a control block diagram of a vehicle automatic wiper system according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart illustrating the determination of the overtaking state and the adjustment of the target wiping speed of the front vehicle according to the embodiment of the invention;
FIG. 3 is a schematic flow chart illustrating a rear vehicle overtaking state determination and target scrub speed adjustment according to an embodiment of the present disclosure;
fig. 4 is a block diagram of a structure of a vehicle according to an embodiment of the invention;
fig. 5 is a flowchart illustrating a control method of an automatic wiper system for a vehicle according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
An automatic wiper system for a vehicle, a control method thereof, and a vehicle according to an embodiment of the present invention will be described below with reference to the accompanying drawings.
Fig. 1 is a control block diagram of an automatic wiper system for a vehicle according to one embodiment of the present invention.
As shown in fig. 1, the vehicle automatic wiper system includes a V2X in-vehicle communication unit 11, a rainfall sensing unit 12, a wiper motor 13, and a vehicle body control unit 14.
The V2X vehicle-mounted communication unit 11 of the vehicle communicates with V2X vehicle-mounted communication units of other vehicles in a V2X communication mode, acquires vehicle information and other vehicle information of a current road section, judges whether the current road section has an overtaking vehicle driving condition or not according to the acquired other vehicle information and the vehicle information, and outputs a wiper speed-up instruction to the vehicle body control unit 14 when the overtaking vehicle driving condition of the current road section is determined; the rainfall sensing unit 12 may include a rainfall sensor 121 through which current rainfall information is sensed and transmitted to the body control unit 14; the wiper motor 13 is used for driving a wiper so that the wiper completes a wiping action on the windshield; the vehicle body control unit 14 is respectively connected with the V2X vehicle-mounted communication unit 11, the rainfall sensing unit 12 and the wiper motor 13, the vehicle body control unit 14 determines the target wiping speed of the wiper according to the current rainfall information provided by the rainfall sensing unit 12, after the target wiping speed is determined, the vehicle body control unit 14 controls the wiper motor according to the speed to realize the automatic control of the wiper, and in the process of automatically controlling the wiper, when receiving a wiper speed increasing instruction sent by the V2X vehicle-mounted communication unit 11, the vehicle body control unit 14 controls the wiper motor 13 to increase the target wiping speed, so that the wiper can timely process suddenly increased water on the windshield, and the problem that when the vehicle runs at high speed in the rainy and snowy weather, the water on the windshield is suddenly increased due to overtaking, the wiper does not timely adjust the wiping speed, and the driver has a short-term blind area is solved, the intelligent degree of the automatic wiper of the vehicle is improved, and the driving experience and the driving safety of a driver are improved.
Specifically, referring to fig. 1, a V2X vehicle-mounted communication unit 11 is added to an automatic vehicle wiper system, and the V2X vehicle-mounted communication unit 11 is an important device of a vehicle-mounted end, and mainly performs information interaction with other vehicles, roadside units, pedestrians, and other V2X devices, so as to implement a driving-related safety warning function. In the embodiment of the present invention, the V2X vehicle-mounted communication unit 11 is not only used for obtaining the vehicle information, such as the driving speed and the position of the vehicle itself, but also used for interacting with the V2X vehicle-mounted communication unit 11 of another vehicle to obtain other vehicle information, such as the vehicle length, the driving direction, the driving speed and the driving position of the other vehicle, and then processing the information to determine whether the vehicle is in the overtaking state or the overtaken state in the current road segment.
As shown in fig. 1, the automatic wiper system for a vehicle further includes a wiper switch 15, where the wiper switch 15 is used to control the wiper to be turned on or off and to control the wiper mode, and if the wiper switch 15 is in the auto mode, the vehicle wiper is in an automatic adjustment state; the rainfall sensor 121 detects information on the amount of rainfall dropping on the windshield, and provides a basis for the operating speed of the wiper motor. The wiper motor 13 starts to rotate after receiving the wiper speed information from the vehicle body control unit 14, and drives the wiper to move, thereby realizing the adjustment of the wiper speed. The vehicle body control unit 14 receives the information of the V2X vehicle-mounted communication unit 11 and the rainfall sensing unit 12, acquires the rainfall information from the rainfall sensing unit 12 to determine the target wiping speed of the wiper, and controls the wiper motor 13 according to the speed, and when receiving a wiper speed increasing command sent by the V2X vehicle-mounted communication unit 11 in the process of controlling the wiper motor 13, the vehicle body control unit 14 outputs a signal to the wiper motor 13 to increase the wiping speed.
Therefore, in the embodiment of this application, automobile body the control unit 14 scrapes the speed of brushing and the wiper speed-raising instruction according to the target of wiper and controls the wiper motor, realize the predictability automatic control to the wiper motor, can make the wiper can in time handle the ponding of the sudden increase on the windshield, when having solved the vehicle and traveling at sleet weather vehicle high speed, the ponding sudden increase on the windshield that leads to because of overtaking, the wiper is not in time adjusted and scrapes the speed of brushing, thereby lead to the problem of the short-term field of vision blind area of driver, the intelligent degree of the automatic wiper of vehicle has been improved, driver's driving experience and driving safety have been promoted.
Alternatively, according to an embodiment of the present invention, the vehicle body control unit 14 is further configured to, upon receiving the wiper speed increase instruction sent by the V2X in-vehicle communication unit 11, acquire the vehicle speed of the vehicle, and control the magnitude of increase in the target wiping speed according to the vehicle speed.
That is to say, the vehicle body control unit 14 receives the wiper speed increasing instruction of the V2X vehicle-mounted communication unit 11 and the rainfall information sensed by the rainfall sensing unit 12, acquires the rainfall information from the rainfall sensing unit 12 to determine the target wiping speed of the wiper, and in the process of controlling the wiper motor 13 according to the speed, when the wiper speed increasing instruction sent by the V2X vehicle-mounted communication unit 11 is received to increase the target wiping speed, the improvement range of the target wiping speed is controlled in combination with the vehicle speed of the vehicle, so that the wiping speed of the wiper is completely adapted to the current driving scene, the wiper can be ensured to timely handle the suddenly increased accumulated water on the windshield, and the control accuracy of the wiper is greatly improved. Specifically, in one embodiment of the present invention, the increase of the target wiping speed is positively correlated with the vehicle speed of the vehicle, i.e., the higher the vehicle speed is, the larger the increase of the target wiping speed is, and the lower the vehicle speed is, the smaller the increase of the target wiping speed is, because the vehicle is driven at high speed in rainy and snowy weather, and in this case, in the driving condition of overtaking or overtaking, rain and snow brought by the overtaking vehicle can be accumulated on the windshield of the vehicle, so that the increase of the wiping speed is required. It can be understood that the larger the driving speed of the overtaking vehicle is, the larger the carried-up rain and snow is, and the larger the required target wiping speed is, so that the wiper can sufficiently wipe off the rain and snow on the windshield, thereby ensuring the driving safety.
It should be noted that, after the target wiping speed is increased by the preset amplitude, the original target wiping speed may be recovered within the set time, where the set time may be 3 seconds.
Alternatively, in an embodiment of the present invention, as shown in fig. 1, the V2X vehicular communication unit 11 performs information interaction with the V2X vehicular communication unit of another vehicle in a V2X communication mode, which is described by taking the other vehicle in the adjacent lane in front of the vehicle as an example, specifically, the vehicle acquires the driving information of the other vehicle in front of the adjacent road section through the V2X vehicular communication unit 11, wherein the driving information of the other vehicle may include, but is not limited to, vehicle type information, driving direction, driving speed and driving position, determines whether there is a large vehicle in the adjacent lane in front according to the acquired driving information of the other vehicle and the vehicle information, calculates whether the longitudinal collision time is less than a first preset time when it is determined that there is a large vehicle in the adjacent lane in front, wherein the vehicle information may also be acquired through the V2X vehicular communication unit 11 of the vehicle, optionally, the vehicle information includes, but is not limited to, vehicle position and vehicle speed. It should be noted that, when it is determined that there is no large vehicle in the adjacent lane in front, the vehicle may return to the previous stage to perform repeated determination, so as to ensure that it can be determined in time whether there is a large vehicle in the adjacent lane in front of the vehicle, and further improve the driving safety of the vehicle.
When the large vehicle exists in the front adjacent lane, the longitudinal collision time between the vehicle and the large vehicle is calculated, the longitudinal collision time is compared with the first preset time, and when the longitudinal collision time is smaller than the first preset time, the current vehicle speed of the vehicle is compared with the first preset speed, so that whether the vehicle is in the overtaking vehicle driving condition or not is determined. More specifically, if the longitudinal collision time is smaller than a first preset time and the current vehicle speed is larger than a first preset speed, the vehicle is determined to be in a driving working condition exceeding the driving of the front large vehicle. At this moment, the vehicle-mounted communication unit 11 of V2X of own car sends the wiper speed-increasing instruction to vehicle body control unit 14, vehicle body control unit 14 controls wiper motor 13 again, and then can make the automatic wiper system of vehicle adjust the speed of scraping in advance, make the wiper can in time handle the ponding of the sudden increase on the windshield, when having solved the vehicle and driving at sleet weather vehicle high speed, because of the ponding sudden increase on the windshield that leads to overtaking, the wiper does not in time adjust the speed of scraping, thereby lead to the problem of the short-term field of vision blind area of driver, the intelligent degree of the automatic wiper of vehicle has been improved, driver's driving experience and driving safety have been promoted simultaneously. It should be noted that, in this embodiment, the large vehicle may be a minimum vehicle type specified by the traffic authority to be driven on the expressway, and the first preset time and the first preset speed may be determined and adjusted according to the speed limit of the lane where the host vehicle is currently located, for example, the first preset time may be 3 seconds, and the first preset speed may be 30 kilometers per hour.
It should be noted that, when the distance between the host vehicle and the large vehicle in the forward direction is greater than a second preset distance after the host vehicle passes the large vehicle, it is determined that the host vehicle is not in the passing vehicle driving condition, where the second preset distance may be 50 meters.
In another embodiment, the V2X vehicle-mounted communication unit is further configured to determine that there is an overtaking vehicle driving condition on the current road segment when it is determined that there is a large vehicle in the rear adjacent lane, the distance between the large vehicle and the vehicle in the forward direction is less than a first preset distance, and the speed of the large vehicle is greater than the speed of the vehicle.
Specifically, referring to fig. 1 and 3, the V2X vehicle-mounted communication unit 11 performs information interaction with the V2X vehicle-mounted communication unit of another vehicle in the V2X communication mode, acquires driving information of another vehicle behind an adjacent road section, such as vehicle type information, driving direction, driving speed, driving position, and the like of the other vehicle behind, determines whether a large vehicle exists in a rear adjacent lane according to the acquired driving information of the other vehicle and the vehicle-mounted information, and determines whether a distance from the vehicle in a forward direction of the large vehicle is smaller than a first preset distance when it is determined that the large vehicle exists in the rear adjacent lane, wherein the vehicle-mounted information may also be acquired by the V2X vehicle-mounted communication unit 11 of the vehicle, and optionally, the vehicle-mounted information includes, but is not limited to, the vehicle position and the vehicle speed. It should be noted that, when it is determined that there is no large vehicle in the rear adjacent lane, the vehicle may return to the previous stage to perform repeated determination, so as to ensure that it can be determined in time whether there is a large vehicle in the front adjacent lane of the vehicle, and further improve the driving safety of the vehicle.
When the large vehicle exists in the adjacent lane behind the large vehicle, the distance between the large vehicle and the vehicle is judged in the advancing direction, and when the distance between the large vehicle and the vehicle is smaller than a first preset distance, the vehicle speed of the large vehicle and the vehicle speed of the vehicle are compared, so that whether the large vehicle is in the overtaking vehicle driving condition or not is determined. More specifically, if the distance between the large vehicle and the host vehicle is judged to be smaller than the first preset distance and the speed of the large vehicle is larger than the speed of the host vehicle, the rear large vehicle is judged to be in the driving working condition exceeding the driving of the host vehicle. At this moment, the vehicle-mounted communication unit 11 of V2X of own car sends the wiper speed-increasing instruction to vehicle body control unit 14, vehicle body control unit 14 controls wiper motor 13 again, and then can make the automatic wiper system of vehicle adjust the speed of scraping in advance, make the wiper can in time handle the ponding of the sudden increase on the windshield, when having solved the vehicle and driving at sleet weather vehicle high speed, because of the ponding sudden increase on the windshield that the rear vehicle overtaking led to, the wiper does not in time adjust the speed of scraping, thereby lead to the problem of the short-term field of vision blind area of driver, the intelligent degree of the automatic wiper of vehicle has been improved, driver's driving experience and driving safety have been promoted simultaneously. It should be noted that, in this embodiment, the large vehicle may be a minimum vehicle type specified by the traffic authority to run the highway, and the first preset distance may be obtained according to the summary of experimental data, for example, the first preset distance may be 10 meters.
It should be noted that when the large vehicle is beyond the host vehicle and is a third preset distance away from the host vehicle, it may be determined that the large vehicle is not in the driving condition of the beyond vehicle, where the third preset distance may be 100 meters.
In summary, the automatic wiper system for the vehicle provided by the embodiment of the invention can judge whether the driving condition of the vehicle exceeds the driving condition of the vehicle when the vehicle runs on the current road section, and adjust the wiping speed of the wiper in advance when the driving condition of the vehicle exceeds the driving condition of the vehicle on the current road section, so that the wiper can timely treat the suddenly increased accumulated water on the windshield, the problem that the accumulated water on the windshield suddenly increases due to overtaking and the wiping speed is not timely adjusted when the vehicle runs at a high speed in a rainy and snowy weather is solved, the short-term view blind area of a driver is caused, the intelligent degree of the automatic wiper for the vehicle is improved, and the driving experience and the driving safety of the driver are improved.
Fig. 4 is a block diagram of a vehicle according to an embodiment of the invention.
Further, as shown in fig. 4, the embodiment of the present application also provides a vehicle 1, where the vehicle 1 includes the vehicle automatic wiper system 2 described in the foregoing embodiment.
According to the vehicle provided by the embodiment of the invention, through the vehicle automatic wiper system in the embodiment, whether the vehicle runs in the current road section beyond the driving condition of the vehicle can be judged, and the wiping speed of the wiper is adjusted in advance when the vehicle runs in the current road section beyond the driving condition of the vehicle, so that the wiper can timely treat suddenly-increased accumulated water on the windshield, the problem that when the vehicle runs at a high speed in rainy and snowy weather, the driver has a short-term view blind area due to the fact that the water on the windshield is suddenly increased due to overtaking and the wiper does not timely adjust the wiping speed is solved, the intelligent degree of the vehicle automatic wiper is improved, and the driving experience and the driving safety of the driver are improved.
Fig. 5 is a flowchart illustrating a control method of an automatic wiper system for a vehicle according to an embodiment of the present invention.
Further, as shown in fig. 5, an embodiment of the present invention provides a control method of an automatic wiper system of a vehicle as the above embodiment, and it should be noted that the control method of the embodiment can be applied to a vehicle controller, and specifically, the method includes the following steps:
and S10, acquiring the own vehicle information and the other vehicle information of the current road section through the V2X vehicle-mounted communication unit of the own vehicle, and outputting a wiper speed-up instruction when the current road section is determined to have the overrunning vehicle driving condition according to the other vehicle information and the own vehicle information.
Specifically, the vehicle controller controls the V2X vehicle-mounted communication unit of the vehicle to communicate with the V2X vehicle-mounted communication unit of another vehicle in a V2X communication mode, obtains vehicle information and other vehicle information of the current road section, judges whether the current road section has the overtaking vehicle driving condition or not according to the obtained other vehicle information and the vehicle information, and outputs a wiper speed-up instruction when the overtaking vehicle driving condition of the current road section is determined.
And S20, sensing the current rainfall information.
Specifically, in this embodiment, the vehicle controller may control the rainfall sensor to sense the current rainfall information, and of course, may also control other sensors to acquire the rainfall information, where the device for acquiring the rainfall information is not limited.
And S30, determining a target wiping speed of the wiper according to the current rainfall information, controlling the wiper motor according to the target wiping speed, and controlling the wiper motor to increase the target wiping speed when receiving a wiper speed increasing command sent by the V2X vehicle-mounted communication unit.
Specifically, after the current rainfall information is acquired, the target wiping speed of the wiper can be determined according to the current rainfall information, after the target wiping speed is determined, the vehicle controller realizes the control of the wiper motor according to the speed, realizes the automatic control of the wiper, and in the process of automatically controlling the wiper, when a wiper speed increasing instruction sent by the V2X vehicle-mounted communication unit is received, the target wiping speed is increased by controlling the wiper motor, the wiper can timely treat the suddenly increased accumulated water on the windshield, and the problem that when the vehicle runs at high speed in rainy and snowy weather is solved, the water accumulation on the windshield is suddenly increased due to overtaking, the wiper does not adjust the wiping speed in time, thereby lead to the problem of the field of vision blind area of driver short-term, improved the intelligent degree of the automatic wiper of vehicle, promoted driver's driving experience and driving safety nature.
Specifically, a V2X vehicle-mounted communication unit is added in the automatic wiper system of the vehicle, and the V2X vehicle-mounted communication unit is used as important equipment of a vehicle-mounted end, and mainly performs information interaction with other vehicles, roadside units, pedestrians and other V2X equipment to realize a driving-related safety early warning function. In the embodiment of the invention, the V2X vehicle-mounted communication unit is not only used for acquiring the vehicle information, such as the driving speed and the position of the vehicle, but also used for interacting with the V2X vehicle-mounted communication unit of other vehicles to acquire other vehicle information, such as the vehicle length, the driving direction, the driving speed and the driving position of other vehicles, and then processing the information to judge whether the vehicle is in the overtaking state or the overtaken state in the current road section.
It should be noted that, the above-mentioned vehicle automatic wiper system may further include a wiper switch, where the wiper switch is used to control the wiper to be turned on or off and to control the mode of the wiper, and if the wiper switch is in the auto mode, the vehicle wiper is in the automatic adjustment state; the rainfall sensor detects rainfall information dropping on the windshield, and provides a basis for the running speed of the wiper motor. And after receiving the wiping speed information from the vehicle controller, the wiper motor starts to rotate to drive the wiper to move, so that the wiping speed is adjusted. The vehicle controller receives the information of the V2X vehicle-mounted communication unit and the rainfall sensing unit, acquires the rainfall information from the rainfall sensing unit to determine the target wiping speed of the wiper, controls the wiper motor according to the speed, and outputs a signal to the wiper motor to improve the wiping speed when receiving a wiper speed increasing instruction sent by the V2X vehicle-mounted communication unit in the process of controlling the wiper motor.
Therefore, in the embodiment of this application, can scrape brush speed and wiper speed-raising instruction according to the target of wiper and control the wiper motor, realize the predictability automatic control to the wiper motor, can make the wiper can in time handle the ponding of the sudden increase on the windshield, when having solved the vehicle and traveling at sleet weather vehicle high speed, ponding sudden increase on the windshield because of overtaking leads to, the wiper is not in time adjusted and scrapes brush speed, thereby lead to the problem of the field of vision blind area of driver short-term, the intelligent degree of vehicle automatic wiper has been improved, driver's driving experience and driving safety have been promoted.
In some embodiments of the invention, when a wiper speed increasing instruction sent by the V2X vehicle-mounted communication unit is received, the vehicle speed of the vehicle is also obtained, and the increase amplitude of the target wiper speed is controlled according to the current vehicle speed.
In some embodiments of the present invention, the magnitude of the increase in the target squeegee speed is positively correlated with the vehicle speed of the vehicle, i.e., the higher the vehicle speed, the greater the magnitude of the increase in the target squeegee speed, and the lower the vehicle speed, the smaller the magnitude of the increase in the target squeegee speed.
In some embodiments of the present invention, determining that there is an overriding vehicle driving situation on the current road segment according to the other vehicle information and the own vehicle information comprises: and judging whether large vehicles exist in the front adjacent lane, the longitudinal collision time is less than a first preset time and the current speed is greater than a first preset speed according to the information of other vehicles and the information of the own vehicle, and determining that the overtaking vehicle driving condition exists in the current road section.
In some embodiments of the present invention, determining that there is an overriding vehicle driving situation on the current road segment according to the other vehicle information and the own vehicle information comprises: and judging whether a large vehicle exists in a rear adjacent lane according to the information of other vehicles and the information of the vehicle, determining that the driving condition of the overtaking vehicle exists in the current road section when the distance between the large vehicle and the vehicle in the advancing direction is less than a first preset distance and the speed of the large vehicle is greater than the speed of the vehicle.
It should be noted that, for other specific embodiments of the control method of the automatic wiper system for a vehicle according to the embodiment of the present invention, reference may be made to the specific embodiments of the automatic wiper system for a vehicle in the foregoing embodiments, and details are not described here.
In summary, the control method of the automatic wiper system for the vehicle provided by the embodiment of the invention can judge whether the vehicle runs in the current road section beyond the driving condition of the vehicle, and adjust the wiping speed of the wiper in advance when the vehicle runs in the current road section beyond the driving condition of the vehicle, so that the wiper can timely treat the suddenly increased accumulated water on the windshield, the problem that the driver has short-term view blind area due to the sudden increase of the accumulated water on the windshield caused by overtaking and the failure of timely adjustment of the wiping speed of the wiper when the vehicle runs in the rain and snow weather is solved, the intelligentization degree of the automatic wiper for the vehicle is improved, and the driving experience and the driving safety of the driver are improved.
Further, an embodiment of the present invention also provides a computer-readable storage medium having stored thereon a control program of a vehicle automatic wiper system, which when executed by a processor, implements the control method of the vehicle automatic wiper system described in the above-described embodiment.
According to the computer-readable storage medium of the embodiment of the invention, the processor executes the control program of the automatic wiper system of the vehicle stored on the processor, so that whether the vehicle is in the driving condition exceeding the vehicle or not can be judged, and the wiping speed of the wiper is adjusted in advance when the driving condition exceeding the vehicle exists in the current road section, so that the wiper can timely treat the suddenly increased accumulated water on the windshield, the problem that the driver has short-term view blind area due to the fact that the accumulated water on the windshield is suddenly increased and the wiping speed of the wiper is not timely adjusted when the vehicle is in high-speed driving in rainy and snowy weather is solved, the intelligentization degree of the automatic wiper of the vehicle is improved, and the driving experience and the driving safety of the driver are improved.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second", and the like used in the embodiments of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated in the embodiments. Thus, a feature of an embodiment of the present invention that is defined by the terms "first," "second," etc. may explicitly or implicitly indicate that at least one of the feature is included in the embodiment. In the description of the present invention, the word "plurality" means at least two or two and more, such as two, three, four, etc., unless specifically limited otherwise in the examples.
In the present invention, unless otherwise explicitly stated or limited by the relevant description or limitation, the terms "mounted," "connected," and "fixed" in the embodiments are to be understood in a broad sense, for example, the connection may be a fixed connection, a detachable connection, or an integrated connection, and it may be understood that the connection may also be a mechanical connection, an electrical connection, etc.; of course, they may be directly connected or indirectly connected through intervening media, or they may be interconnected within one another or in an interactive relationship. Those of ordinary skill in the art will understand the specific meaning of the above terms in the present invention according to their specific implementation.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. An automatic wiper system for a vehicle, comprising:
the V2X vehicle-mounted communication unit is used for acquiring vehicle information and other vehicle information of a current road section, and outputting a wiper speed-up instruction when the current road section is determined to have an overrunning vehicle driving condition according to the other vehicle information and the vehicle information;
the rainfall sensing unit is used for sensing current rainfall information;
a wiper motor;
the vehicle body control unit is respectively connected with the V2X vehicle-mounted communication unit, the rainfall sensing unit and the wiper motor, the vehicle body control unit determines the target wiping speed of a wiper according to the current rainfall information, controls the wiper motor according to the target wiping speed, and controls the wiper motor to increase the target wiping speed by controlling the wiper motor when receiving a wiper speed increasing instruction sent by the V2X vehicle-mounted communication unit.
2. The vehicle automatic wiper system according to claim 1, wherein the vehicle body control unit is further configured to acquire a vehicle speed of the vehicle upon receiving a wiper speed-up command transmitted from the V2X on-vehicle communication unit, and to control a magnitude of increase in the target wiping speed according to the vehicle speed of the vehicle, wherein the greater the vehicle speed, the greater the magnitude of increase in the target wiping speed.
3. The vehicle automatic wiper system according to claim 1 or 2, wherein the V2X vehicle-mounted communication unit is further configured to determine that there is an overrunning vehicle driving condition on the current road segment when it is determined that there is a large vehicle in the adjacent lane ahead, the longitudinal collision time is less than a first preset time, and the current vehicle speed is greater than a first preset speed according to the other vehicle information and the own vehicle information.
4. The vehicle automatic wiper system according to claim 1 or 2, wherein the V2X vehicle-mounted communication unit is further configured to determine that there is an overtaking vehicle driving situation in the current road section when it is determined that there is a large vehicle in a rear adjacent lane, a distance between the large vehicle and the vehicle in a forward direction is smaller than a first preset distance, and a vehicle speed of the large vehicle is greater than a vehicle speed of the vehicle, based on the other vehicle information and the vehicle information.
5. A vehicle characterized by comprising the vehicle automatic wiper system according to any one of claims 1 to 4.
6. A control method of an automatic wiper system for a vehicle, comprising the steps of:
acquiring vehicle information and other vehicle information of a current road section through a vehicle-mounted V2X communication unit of a vehicle, and outputting a wiper speed-up instruction when the current road section is determined to have an overrunning vehicle driving condition according to the other vehicle information and the vehicle information;
sensing current rainfall information;
determining a target wiping speed of a wiper according to the current rainfall information, controlling a wiper motor according to the target wiping speed, and controlling the wiper motor to increase the target wiping speed when receiving a wiper speed increasing instruction sent by the V2X vehicle-mounted communication unit.
7. The control method of a vehicle automatic wiper system according to claim 6, characterized in that upon receiving a wiper speed-up command transmitted from said V2X on-board communication unit, a vehicle speed is also acquired, and a magnitude of increase of said target wiper speed is controlled in accordance with said vehicle speed, wherein said magnitude of increase of said target wiper speed is larger as said vehicle speed is higher.
8. The control method of the vehicle automatic wiper system according to claim 6 or 7, wherein determining that there is an overriding vehicle driving situation in the current road section based on the other vehicle information and the own vehicle information includes:
and judging whether large vehicles exist in the front adjacent lane, the longitudinal collision time is less than first preset time and the current speed is greater than first preset speed according to the other vehicle information and the own vehicle information, and determining that the overtaking vehicle driving condition exists in the current road section.
9. The control method of the vehicle automatic wiper system according to claim 6 or 7, wherein determining that there is an overriding vehicle driving situation in the current road section based on the other vehicle information and the own vehicle information includes:
and determining that the overtaking vehicle driving condition exists in the current road section when the large vehicle exists in the rear adjacent lane, the distance between the large vehicle and the self vehicle in the advancing direction is smaller than a first preset distance and the vehicle speed of the large vehicle is greater than the vehicle speed of the self vehicle according to the other vehicle information and the self vehicle information.
10. A computer-readable storage medium, characterized in that a control program of a vehicle automatic wiper system is stored thereon, which when executed by a processor implements the control method of the vehicle automatic wiper system according to any one of claims 6 to 9.
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| CN202110646556.8A CN113370936A (en) | 2021-06-10 | 2021-06-10 | Vehicle, automatic wiper system for vehicle and control method thereof |
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| CN202110646556.8A CN113370936A (en) | 2021-06-10 | 2021-06-10 | Vehicle, automatic wiper system for vehicle and control method thereof |
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| CN101992746A (en) * | 2010-10-22 | 2011-03-30 | 奇瑞汽车股份有限公司 | Windscreen wiper controlling system and method |
| CN110001585A (en) * | 2019-04-30 | 2019-07-12 | 重庆长安汽车股份有限公司 | A kind of vehicle-mounted rain scrape control method, system and automobile |
| CN112389466A (en) * | 2020-12-03 | 2021-02-23 | 安徽江淮汽车集团股份有限公司 | Method, device and equipment for automatically avoiding vehicle and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101992746A (en) * | 2010-10-22 | 2011-03-30 | 奇瑞汽车股份有限公司 | Windscreen wiper controlling system and method |
| CN110001585A (en) * | 2019-04-30 | 2019-07-12 | 重庆长安汽车股份有限公司 | A kind of vehicle-mounted rain scrape control method, system and automobile |
| CN112389466A (en) * | 2020-12-03 | 2021-02-23 | 安徽江淮汽车集团股份有限公司 | Method, device and equipment for automatically avoiding vehicle and storage medium |
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