Windscreen wiper control method and device

Abstract

The invention discloses a windscreen wiper control method and device, and the method comprises the steps: obtaining the position information of a first windscreen wiper and a second windscreen wiper when the first windscreen wiper and the second windscreen wiper are in a windscreen wiping mode; determining a target sensor from the first rainfall sensor and the second rainfall sensor according to the position information of the first windscreen wiper and the second windscreen wiper; obtaining a target optical signal of the target sensor; and controlling the movement of the first windscreen wiper and the second windscreen wiper according to the target optical signal. Therefore, by deploying the double rainfall sensors and combining with the dynamic switching detection of the position of the windscreen wiper, the interference of the movement of the windscreen wiper on the sensors is avoided, and more accurate rainfall judgment can be realized at lower cost.

Description

Technical Field

[0001] The present invention relates to the field of vehicle control technology, and in particular to a wiper control method and device. Background Art

[0002] In the prior art, automatic wiper control in vehicles generally uses infrared light-sensing rain sensors. This approach is relatively low-cost, but is highly susceptible to environmental influences, leading to misjudgments. For example, during heavy rain, the wipers are activated to wipe the windshield. Water accumulates on the wipers, and due to inertia, some of the water falls onto the glass where the sensor is located. This increases the scattering of the rain sensor, causing it to mistakenly interpret the external rainfall as heavier, resulting in a faster wiper speed that mismatches the actual rainfall. Summary of the Invention

[0003] In view of the above problems, the present invention provides a wiper control method and device to improve the accuracy of rainfall judgment and prevent misjudgment of rainfall.

[0004] According to a first aspect of the present invention, a wiper control method is provided, which is applied to a vehicle, wherein a first wiper, a second wiper, a first rain sensor, and a second rain sensor are provided on a windshield of the vehicle, wherein the first rain sensor is located at a wiping start position of the first wiper, and the second rain sensor is located at a wiping stop position of the first wiper;

[0005] The method comprises:

[0006] When the first wiper and the second wiper are in a rain wiping mode, obtaining position information of the first wiper and the second wiper;

[0007] determining a target sensor from the first rain sensor and the second rain sensor according to the position information of the first wiper and the second wiper;

[0008] acquiring a target light signal from the target sensor;

[0009] The movements of the first wiper and the second wiper are controlled according to the target light signal.

[0010] Optionally, before the first wiper and the second wiper are in the rain wiping mode, the method further includes:

[0011] When the vehicle is powered on, obtaining an optical signal from the second rain sensor;

[0012] comparing the light signal with a preset light intensity threshold;

[0013] If the light signal is greater than the light intensity threshold, the first wiper and the second wiper are controlled to enter a rain wiping mode.

[0014] Optionally, determining a target sensor from the first rain sensor and the second rain sensor according to the position information of the first wiper and the second wiper includes:

[0015] Acquire position information of the first wiper and the second wiper, wherein the position information includes a scraping start position and a scraping stop position;

[0016] If the position information is a scraping start position, the second rain sensor is used as a target sensor;

[0017] If the position information is a stop wiping position, the first rain sensor is used as a target sensor.

[0018] Optionally, if the position information is a scraping start position, using the second rain sensor as a target sensor includes:

[0019] If the position information is the starting wiper position, the second rain sensor is used as the target sensor, and after a preset time, the first rain sensor is used as the target sensor; wherein, within the preset time, the first wiper and the second wiper do not reach the stopping wiper position.

[0020] Optionally, if the position information is a stop-wiping position, using the first rain sensor as a target sensor includes:

[0021] If the position information is a stop-wiping position, the first rain sensor is used as a target sensor, and after a preset time, the second rain sensor is used as a target sensor; wherein, within the preset time, the first wiper and the second wiper do not reach the start-wiping position.

[0022] Optionally, the preset time length is greater than an information collection period of the first rain sensor and the second rain sensor, and the preset time length is less than half of a minimum wiping period of the wiper.

[0023] According to a second aspect of the present invention, there is provided a wiper control device, comprising:

[0024] a first acquiring module, configured to acquire position information of the first wiper and the second wiper when the first wiper and the second wiper are in a rain wiping mode;

[0025] a determination module, configured to determine a target sensor from the first rain sensor and the second rain sensor according to the position information of the first wiper and the second wiper;

[0026] A second acquisition module is used to acquire a target light signal from the target sensor;

[0027] A control module is used to control the movement of the first wiper and the second wiper according to the target light signal.

[0028] According to a third aspect of the present invention, there is provided a wiper control system using the aforementioned wiper control method; the system comprises: a first wiper, a second wiper, a first rain sensor, and a second rain sensor disposed on a windshield of a vehicle;

[0029] The first rain sensor is located at a wiping start position of the first wiper, and the second rain sensor is located at a wiping stop position of the first wiper.

[0030] Optionally, the first rain sensor is located at the bottom of the windshield, and the second rain sensor is located at the top of the windshield.

[0031] According to a fourth aspect of the present invention, a controller is provided. The controller includes a memory, a processor, and a computer program stored in the memory and executable on the processor. The processor executes the aforementioned wiper control method.

[0032] The above one or more technical solutions in the embodiments of this specification have at least the following technical effects:

[0033] The embodiments of this specification provide a wiper control method and device. These methods involve obtaining position information of the first and second wipers when they are in rain wiping mode; determining a target sensor from the first and second rain sensors based on the position information; obtaining a target light signal from the target sensor; and controlling the movement of the first and second wipers based on the target light signal. By deploying dual rain sensors and combining them with dynamic wiper position switching detection, interference with the sensors caused by wiper movement can be avoided, achieving more accurate rain level determination at a lower cost.

[0034] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are specifically listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. Throughout the drawings, the same reference figures denote the same components. In the drawings:

[0036] Figure 1 A flow chart of a wiper control method in an embodiment of the present invention is shown.

[0037] Figure 2 A schematic diagram of a windshield in an embodiment of the present invention is shown.

[0038] Figure 3 A block diagram of a wiper control device in an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are intended to fall within the scope of protection of the present invention.

[0041] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0042] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0043] In the prior art, automatic wiper control in vehicles generally uses infrared light-sensing rain sensors. This approach is relatively low-cost, but is highly susceptible to environmental influences, leading to misjudgments. For example, during heavy rain, the wipers are activated to wipe the windshield. Water accumulates on the wipers, and due to inertia, some of the water falls onto the glass where the sensor is located. This increases the scattering of the rain sensor, causing it to mistakenly interpret the external rainfall as heavier, resulting in a faster wiper speed that mismatches the actual rainfall.

[0044] Based on the above content, an embodiment of the present invention provides a wiper control method, which is applied to a vehicle, wherein a first wiper, a second wiper, a first rain sensor and a second rain sensor are provided on the windshield of the vehicle, wherein the first rain sensor is located at the starting position of the first wiper, and the second rain sensor is located at the stopping position of the first wiper.

[0045] Combine Figure 1 As shown in the flowchart, the wiper control method includes steps 101 to 104:

[0046] Step 101: When the first wiper and the second wiper are in a rain wiping mode, obtaining position information of the first wiper and the second wiper;

[0047] Step 102: Determine a target sensor from the first rain sensor and the second rain sensor according to the position information of the first wiper and the second wiper;

[0048] Step 103: Acquire a target light signal from the target sensor;

[0049] Step 104: Control the movement of the first wiper and the second wiper according to the target light signal.

[0050] In this embodiment, the first and second wipers are conventional wiper devices that cover the windshield wiping area. The windshield can be either the front or rear windshield. Dual sensors, namely a first rain sensor and a second rain sensor, are disposed on the windshield.

[0051] Combine Figure 2 As shown, the first rain sensor is installed at the first wiper starting position (the bottom of the windshield, i.e. Figure 2 The second rain sensor is installed at the stop position of the first wiper (the top of the windshield, i.e. Figure 2 (where A is located in the middle).

[0052] It should be noted that the first wiper can be the wiper on the left side of the windshield, and the second wiper can be the wiper on the right side of the windshield; or the first wiper can be the wiper on the right side of the windshield, and the second wiper can be the wiper on the left side of the windshield. This embodiment does not limit this. In order to facilitate understanding and implementation by those skilled in the art, this embodiment is combined with Figure 2 As shown, Figure 2 The wiper at the middle right position is used as the first wiper in this embodiment. Figure 2 The wiper at the middle left position serves as the second wiper in this embodiment.

[0053] The wiper start position is typically located at the very bottom of the windshield, near the hood. Some models may also have it hidden in a recessed groove beneath the hood. This is the initial position of the wipers when they are stationary, generally aligned with the bottom edge of the windshield. Some models can use the vehicle's maintenance mode to raise the wipers above this position for easier blade replacement.

[0054] The stop position usually refers to the extreme upward wiping position of the wipers, close to the top of the windshield (near the roof). It is the temporary stop point after the wipers complete an upward wiping action (only exists in continuous wiping mode), or the waiting position during intermittent wiping.

[0055] A rain sensor detects rainfall to control windshield wipers. Its operating principle is based on the principles of optical refraction and reflection. Typically mounted on the inside of a windshield, it consists of a transmitter (an infrared light-emitting diode) and a receiver (a phototransistor), forming an optical path at a specific angle between the two.

[0056] When there's no rain on the windshield, infrared light from the transmitter is directed at a specific angle toward the outer surface of the glass. Due to the difference in refractive index between glass and air, the light is totally reflected from the glass surface, returning almost entirely to the receiver. At this point, the optical signal received by the receiver is the strongest, and the sensor determines there's no rain, disabling the wipers.

[0057] When raindrops fall on a windshield, they alter the surface dielectric of the glass. The refractive index of rainwater (approximately 1.33) lies between that of glass (approximately 1.52) and air (approximately 1.0). At this point, light is refracted at the glass-rainwater interface, with some light penetrating the rainwater and scattering into the air, weakening the optical signal returning to the receiver. The heavier the rainfall (the more numerous and larger the raindrops), the more pronounced the refraction and scattering of light, leading to a more significant drop in the optical signal strength received by the receiver.

[0058] In this embodiment, dual sensors are provided on the windshield, with the first rain sensor being located at the first wiper's wiping start position and the second rain sensor being located at the first wiper's wiping stop position. Both rain sensors are located in the effective wiping area of the wiper.

[0059] When the vehicle is powered on, the light signal of the second rain sensor is obtained; the light signal is compared with a preset light intensity threshold; if the light signal is greater than the light intensity threshold, the first wiper and the second wiper are controlled to enter the rain wiping mode.

[0060] Specifically, when the vehicle is powered on, the second rain sensor is immediately activated and begins acquiring its optical signal. This second rain sensor is located in the parked position of the first wiper, typically in the middle of the top of the windshield. When the vehicle is parked, this area is less susceptible to interference from debris like splashing water and fallen leaves, allowing it to more accurately reflect the actual wetness of the windshield surface.

[0061] After acquiring the light signal, the system compares it to a pre-set light intensity threshold. This threshold was established through extensive experimentation and data validation. If the light signal exceeds the threshold, the windshield surface is relatively dry and the wipers are not required. If the light signal falls below the threshold, the first and second wipers enter rain-wiping mode. The wiper system then preliminarily determines the wiper speed based on the difference between the light signal and the threshold.

[0062] When the first and second wipers are in wiper mode, the position information of the first and second wipers is obtained. At this point, the first and second wipers have already started wiping. In this embodiment, the wipers only feedback the start and stop positions via the LIN line. When the wipers are between the start and stop positions, the specific position is not fed back. In other words, the position information of the wipers in this embodiment is not fed back in real time. A wiper cycle is generally between 0.8s and 1.5s, and the wiper cycles are inconsistent in different gears.

[0063] After obtaining the position information of the first and second wipers, the target sensor will be dynamically determined. It should be noted that the position information of the first and second wipers is synchronized. In other words, if the first wiper is in the start position, the second wiper is also in the start position. If the first wiper is in the stop position, the second wiper is also in the stop position.

[0064] The target sensor is dynamically selected and switched from the first rain sensor and the second rain sensor based on the position information. The purpose is to avoid interference areas according to the wiper position.

[0065] When the wiper is in the wiping position, the wiper covers and blocks the first rain sensor. At this time, the first rain sensor fails and the second rain sensor is used as the target sensor. The information collected by the second rain sensor is used as the basis for determining the rainfall.

[0066] Similarly, when the wiper is in the stop position, the wiper covers and blocks the second rain sensor. At this time, the second rain sensor becomes invalid, and the first rain sensor is used as the target sensor. The information collected by the first rain sensor is used as the basis for determining the rainfall.

[0067] It's important to note that during heavy rainfall, raindrops fall rapidly onto the windshield, easily forming a thick film. Furthermore, water accumulates on the wipers, and due to inertia, some water falls onto the glass surface where the sensor is located. This increases the scattering of the rain sensor, causing it to mistakenly interpret the external rainfall as heavier, resulting in a faster wiper speed that doesn't match the external rainfall.

[0068] Based on the above situation, in this embodiment, when the position information is the starting position for wiping, the second rain sensor is used as the target sensor, and the first rain sensor is invalid at this time. After a preset time (for example, the preset time is 300ms), the first rain sensor is immediately used as the target sensor; the preset time is relatively short, generally longer than the information collection period of the first rain sensor and the second rain sensor, and less than half of the minimum wiping period of the wiper. The purpose is that after the preset time, the first wiper just leaves the glass area where the first rain sensor is located, and wipes the glass area where the first rain sensor is located clean, and at the same time the first wiper has not yet reached the stop position. In this way, the impact of water accumulation on the wiper and water thrown off by the wiper inertia on the second rain sensor can be further reduced.

[0069] Similarly, when the position information is the stop-wiping position, the first rain sensor is used as the target sensor, and the second rain sensor is invalid at this time. After the preset time (for example, the preset time is 300ms), the second rain sensor is immediately used as the target sensor. The preset time is relatively short, generally longer than the information collection cycle of the first rain sensor and the second rain sensor, and less than half of the minimum wiping cycle of the wiper. The purpose is that after the preset time, the first wiper just leaves the glass area where the second rain sensor is located, and wipes the glass area where the second rain sensor is located clean, and the first wiper has not yet reached the starting position. In this way, the impact of wiper water accumulation and wiper inertia on the first rain sensor can be further reduced.

[0070] When acquiring the target light signal from the target sensor, the vehicle precisely connects to the currently selected target sensor signal channel through an internal electronic switching device, ensuring the collected signal originates purely from the target sensor and avoiding interference from signals from other sensors. Furthermore, the system intelligently adjusts the signal sampling frequency based on actual weather conditions and wiper operation mode. In light rain or when the wipers are in intermittent mode, the system collects light signals at a rate of 10 times per second, enabling timely capture of rainfall changes while reducing system power consumption. In heavy rain or when the wipers are in continuous operation, the sampling frequency increases to 50 times per second, enabling more rapid and accurate detection of subtle fluctuations in rainfall.

[0071] After collecting the target optical signal, it undergoes a series of preprocessing steps. First, a digital filtering algorithm removes pulse noise caused by electromagnetic interference and sensor fluctuations, making the signal smoother and more stable. Second, the optical signal is temperature-compensated based on data from the onboard ambient temperature sensor. Because changes in ambient temperature affect the refractive index of the glass and sensor components, and thus alter the optical signal intensity, temperature compensation ensures that the optical signal accurately reflects actual rainfall conditions, eliminating measurement deviations caused by temperature factors.

[0072] After acquiring the processed target light signal, the movement of the first and second wipers is controlled according to pre-set rules. Specifically, a detailed table of light signal-rainfall-wiper speed relationships is stored within the vehicle, derived from extensive on-vehicle testing and data analysis. For example, when the target light signal intensity is between 70% and 90% of the rated value, it is considered light rain, and the wipers are controlled to operate in low-speed intermittent mode, wiping every 10 seconds. When the light signal intensity drops to 30% to 50% of the rated value, corresponding to moderate rain, the wipers switch to medium-speed intermittent mode, wiping every 5 seconds. Once the light signal intensity drops below 30% of the rated value, it is considered heavy rain, and the wipers immediately enter high-speed continuous operation, wiping the windshield non-stop to ensure a clear view for the driver.

[0073] In summary, the embodiments of this specification provide a wiper control method that obtains position information of the first and second wipers when they are in rain wiping mode; determines a target sensor from the first and second rain sensors based on the position information; obtains a target light signal from the target sensor; and controls the movement of the first and second wipers based on the target light signal. In this way, by deploying dual rain sensors and combining dynamic wiper position switching detection, interference with the sensors caused by wiper movement is avoided, achieving more accurate rain level determination at a lower cost.

[0074] Based on the same inventive concept, combined Figure 3 As shown, an embodiment of the present invention further provides a wiper control device, comprising:

[0075] a first acquiring module, configured to acquire position information of the first wiper and the second wiper when the first wiper and the second wiper are in a rain wiping mode;

[0076] a determination module, configured to determine a target sensor from the first rain sensor and the second rain sensor according to the position information of the first wiper and the second wiper;

[0077] A second acquisition module is used to acquire a target light signal from the target sensor;

[0078] A control module is used to control the movement of the first wiper and the second wiper according to the target light signal.

[0079] Optionally, the first acquisition module is further configured to:

[0080] When the vehicle is powered on, obtaining an optical signal from the second rain sensor;

[0081] comparing the light signal with a preset light intensity threshold;

[0082] If the light signal is greater than the light intensity threshold, the first wiper and the second wiper are controlled to enter a rain wiping mode.

[0083] Optionally, the determination module is further configured to:

[0084] Acquire position information of the first wiper and the second wiper, wherein the position information includes a scraping start position and a scraping stop position;

[0085] If the position information is a scraping start position, the second rain sensor is used as a target sensor;

[0086] If the position information is a stop wiping position, the first rain sensor is used as a target sensor.

[0087] Optionally, the determination module is further configured to:

[0088] If the position information is the starting wiper position, the second rain sensor is used as the target sensor, and after a preset time, the first rain sensor is used as the target sensor; wherein, within the preset time, the first wiper and the second wiper do not reach the stopping wiper position.

[0089] Optionally, the determination module is further configured to:

[0090] If the position information is a stop-wiping position, the first rain sensor is used as a target sensor, and after a preset time, the second rain sensor is used as a target sensor; wherein, within the preset time, the first wiper and the second wiper do not reach the start-wiping position.

[0091] Optionally, the preset time length is greater than an information collection period of the first rain sensor and the second rain sensor, and the preset time length is less than half of a minimum wiping period of the wiper.

[0092] In summary, the embodiments of this specification provide a wiper control device that, when the first and second wipers are in rain wiping mode, obtains position information of the first and second wipers; determines a target sensor from the first and second rain sensors based on the position information; obtains a target light signal from the target sensor; and controls the movement of the first and second wipers based on the target light signal. In this way, by deploying dual rain sensors and combining dynamic wiper position switching detection, interference with the sensors caused by wiper movement is avoided, achieving more accurate rain level determination at a lower cost.

[0093] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working process of the wiper control device described above can refer to the corresponding process in the aforementioned method, and will not be elaborated here.

[0094] Based on the same inventive concept, an embodiment of the present invention further provides a wiper control system using the aforementioned wiper control method; the system comprises: a first wiper, a second wiper, a first rain sensor, and a second rain sensor disposed on a vehicle windshield;

[0095] The first rain sensor is located at a wiping start position of the first wiper, and the second rain sensor is located at a wiping stop position of the first wiper.

[0096] A wiper control method, comprising:

[0097] When the first wiper and the second wiper are in a rain wiping mode, obtaining position information of the first wiper and the second wiper;

[0098] determining a target sensor from the first rain sensor and the second rain sensor according to the position information of the first wiper and the second wiper;

[0099] acquiring a target light signal from the target sensor;

[0100] The movements of the first wiper and the second wiper are controlled according to the target light signal.

[0101] Optionally, before the first wiper and the second wiper are in the rain wiping mode, the method further includes:

[0102] When the vehicle is powered on, obtaining an optical signal from the second rain sensor;

[0103] comparing the light signal with a preset light intensity threshold;

[0104] If the light signal is greater than the light intensity threshold, the first wiper and the second wiper are controlled to enter a rain wiping mode.

[0105] Optionally, determining a target sensor from the first rain sensor and the second rain sensor according to the position information of the first wiper and the second wiper includes:

[0106] Acquire position information of the first wiper and the second wiper, wherein the position information includes a scraping start position and a scraping stop position;

[0107] If the position information is a scraping start position, the second rain sensor is used as a target sensor;

[0108] If the position information is a stop wiping position, the first rain sensor is used as a target sensor.

[0109] Optionally, if the position information is a scraping start position, using the second rain sensor as a target sensor includes:

[0110] If the position information is the starting wiper position, the second rain sensor is used as the target sensor, and after a preset time, the first rain sensor is used as the target sensor; wherein, within the preset time, the first wiper and the second wiper do not reach the stopping wiper position.

[0111] Optionally, if the position information is a stop-wiping position, using the first rain sensor as a target sensor includes:

[0112] If the position information is a stop-wiping position, the first rain sensor is used as a target sensor, and after a preset time, the second rain sensor is used as a target sensor; wherein, within the preset time, the first wiper and the second wiper do not reach the start-wiping position.

[0113] Optionally, the preset time length is greater than an information collection period of the first rain sensor and the second rain sensor, and the preset time length is less than half of a minimum wiping period of the wiper.

[0114] In summary, the embodiments of this specification provide a wiper control system that, when the first and second wipers are in rain wiping mode, obtains position information of the first and second wipers; determines a target sensor from the first and second rain sensors based on the position information; obtains a target light signal from the target sensor; and controls the movement of the first and second wipers based on the target light signal. In this way, by deploying dual rain sensors and combining them with dynamic wiper position switching detection, interference with the sensors caused by wiper movement is avoided, achieving more accurate rain level determination at a lower cost.

[0115] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working process of the wiper control system described above can refer to the corresponding process in the aforementioned method, and will not be elaborated here.

[0116] Based on the same inventive concept, an embodiment of the present invention also provides a controller, which includes a wiper control device, a memory, a processor and a communication unit. The memory stores machine-readable instructions executable by the processor. When the controller is running, the processor and the memory communicate through a bus, the processor executes the machine-readable instructions, and executes the wiper control method.

[0117] The memory, processor, and communication unit components are electrically connected to each other, directly or indirectly, to enable signal transmission or interaction. For example, these components may be electrically connected to each other via one or more communication buses or signal lines. The wiper control device includes at least one software function module that can be stored in the memory in the form of software or firmware. The processor is configured to execute the executable module stored in the memory (e.g., the software function module or computer program included in the wiper control device).

[0118] Among them, the memory can be, but is not limited to, random access memory (RAM), read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), etc.

[0119] In some embodiments, the processor is used to perform one or more functions described in this embodiment. In some embodiments, the processor may include one or more processing cores (eg, a single-core processor (S) or a multi-core processor (S)).

[0120] In this embodiment, the memory is used to store the program, and the processor is used to execute the program after receiving the execution instruction. The process definition method disclosed in any implementation of this embodiment can be applied to the processor or implemented by the processor.

[0121] The communication unit is used to establish a communication connection between the controller and other devices through the network, and to send and receive data through the network.

[0122] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working process of the controller described above can refer to the corresponding process in the aforementioned method, and will not be elaborated here.

[0123] Based on the same inventive concept, an embodiment of the present invention further provides a vehicle, comprising a vehicle body and a controller installed in the vehicle body, wherein the controller is used to implement the aforementioned wiper control method.

[0124] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working process of the vehicle controller described above can refer to the corresponding process in the aforementioned method and will not be elaborated here.

[0125] The above are merely various embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A wiper control method, characterized in that: Applied to a vehicle, the windshield of the vehicle is provided with a first wiper, a second wiper, a first rain sensor, and a second rain sensor, the first rain sensor being located at a scraping start position of the first wiper, and the second rain sensor being located at a scraping stop position of the first wiper; The method comprises: When the first wiper and the second wiper are in a rain wiping mode, obtaining position information of the first wiper and the second wiper; determining a target sensor from the first rain sensor and the second rain sensor according to the position information of the first wiper and the second wiper; acquiring a target light signal from the target sensor; The movements of the first wiper and the second wiper are controlled according to the target light signal.

2. The method according to claim 1, characterized in that Before the first wiper and the second wiper are in the rain wiping mode, the method further includes: When the vehicle is powered on, obtaining an optical signal from the second rain sensor; comparing the light signal with a preset light intensity threshold; If the light signal is greater than the light intensity threshold, the first wiper and the second wiper are controlled to enter a rain wiping mode.

3. The method according to claim 1, characterized in that The determining a target sensor from the first rain sensor and the second rain sensor according to the position information of the first wiper and the second wiper includes: Acquire position information of the first wiper and the second wiper, wherein the position information includes a scraping start position and a scraping stop position; If the position information is a scraping start position, the second rain sensor is used as a target sensor; If the position information is a stop wiping position, the first rain sensor is used as a target sensor.

4. The method according to claim 3, characterized in that If the position information is a scraping start position, using the second rain sensor as a target sensor includes: If the position information is the starting wiper position, the second rain sensor is used as the target sensor, and after a preset time, the first rain sensor is used as the target sensor; wherein, within the preset time, the first wiper and the second wiper do not reach the stopping wiper position.

5. The method according to claim 3, characterized in that If the position information is a stop-wiping position, using the first rain sensor as a target sensor includes: If the position information is a stop-wiping position, the first rain sensor is used as a target sensor, and after a preset time, the second rain sensor is used as a target sensor; wherein, within the preset time, the first wiper and the second wiper do not reach the start-wiping position.

6. The method according to claim 4 or 5, characterized in that The preset time length is greater than an information collection period of the first rain sensor and the second rain sensor, and the preset time length is less than half of a minimum wiping period of the wiper.

7. A wiper control device, characterized in that: include: a first acquiring module, configured to acquire position information of the first wiper and the second wiper when the first wiper and the second wiper are in a rain wiping mode; a determination module, configured to determine a target sensor from the first rain sensor and the second rain sensor according to the position information of the first wiper and the second wiper; A second acquisition module is used to acquire a target light signal from the target sensor; A control module is used to control the movement of the first wiper and the second wiper according to the target light signal.

8. A wiper control system, characterized in that: Using the wiper control method according to any one of claims 1 to 6; the system comprises: a first wiper, a second wiper, a first rain sensor, and a second rain sensor arranged on a windshield of a vehicle; The first rain sensor is located at a wiping start position of the first wiper, and the second rain sensor is located at a wiping stop position of the first wiper.

9. The system according to claim 8, characterized in that The first rain sensor is located at the bottom of the windshield, and the second rain sensor is located at the top of the windshield.

10. A controller, characterized in that: The controller includes: a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the wiper control method according to any one of claims 1 to 6 is implemented.

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