Brake lamp control method and device and vehicle

Abstract

The invention discloses a brake lamp control method and device and a vehicle. The control method comprises the following steps: acquiring a callable sensor type of a vehicle; the sensors comprise an acceleration sensor, a vehicle speed sensor, a torque sensor and a pedaling frequency sensor; selecting different operation modes according to the types of the callable sensors; the operation modes comprise a first mode, a second mode and a third mode; wherein the types of the sensors called in the first mode, the second mode and the third mode are different, and the types of the sensors comprise at least two types; in different operation modes, receiving and processing vehicle information sent by corresponding sensors; and the lighting state of the brake lamp is controlled according to the information processing result. According to the control method of the brake lamp, the situation of false alarm or insensitive judgment of the brake lamp can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of brake light control, and in particular to a brake light control method, device and vehicle. BACKGROUND

[0002] In the vehicle driving safety system such as bicycles, electric two-wheel vehicles, electric three-wheel vehicles, brake lights as key rear warning devices, the core function is to transmit the braking intention of the vehicle to the rear personnel and vehicles through light signals, so as to avoid rear-end accidents.

[0003] In the normal forward process of the traditional vehicle, it cannot actively send warning signals to the rear personnel. To solve this problem, one technical solution is to install a long-bright or fixed-mode lighted ordinary brake light. This kind of solution can play a certain warning role, but it cannot accurately transmit braking information to the rear vehicles or personnel. Another technical solution is to use an intelligent brake light, which essentially relies on an accelerometer to achieve the function. Limited by the current technical level, the simple accelerometer can only complete the braking identification in a simple scene, and in actual application, there are often problems of high identification misjudgment rate or poor sensitivity. SUMMARY

[0004] The present application provides a brake light control method, device and vehicle to solve the problem of brake light false alarm or poor sensitivity in non-braking state of the vehicle.

[0005] To achieve the above technical problems, the present application adopts the following technical solutions:

[0006] In a first aspect, the present application provides a brake light control method, comprising:

[0007] Obtaining the types of sensors available to the vehicle; the sensors include acceleration sensors, speed sensors, torque sensors and pedal frequency sensors;

[0008] Selecting different operating modes according to the types of available sensors; the operating modes include mode one, mode two and mode three; wherein the types of sensors called by the mode one, the mode two and the mode three are different, and the sensor types include at least two types;

[0009] In different operating modes, receiving and processing the vehicle information sent by the corresponding sensors; and controlling the light-on state of the brake light according to the information processing result.

[0010] Optionally, the mode one calls the speed sensor and the acceleration sensor;

[0011] The mode two calls the pedal frequency sensor, the torque sensor and the acceleration sensor;

[0012] The mode three calls the vehicle speed sensor, the pedal frequency sensor, the torque sensor and the acceleration sensor.

[0013] Optionally, the receiving and processing vehicle information sent by the corresponding sensors under different operating modes, and controlling the brake light according to the information processing result, comprises:

[0014] Under the mode one, receiving and processing the vehicle speed information sent by the vehicle speed sensor and the acceleration information sent by the acceleration sensor;

[0015] If the vehicle speed is less than the vehicle speed threshold value, and the acceleration of the vehicle running direction is less than the acceleration threshold value, it is considered that the vehicle is braking.

[0016] Optionally, the receiving and processing vehicle information sent by the corresponding sensors under different operating modes, and controlling the brake light according to the information processing result, comprises:

[0017] Under the mode two, receiving and processing the pedal frequency information sent by the pedal frequency sensor, the torque information sent by the torque sensor and the acceleration information sent by the acceleration sensor;

[0018] If the pedal frequency of the vehicle is less than the pedal frequency threshold value, the torque of the vehicle is greater than the torque threshold value, and the acceleration of the vehicle running direction is less than the acceleration threshold value, it is considered that the vehicle is braking.

[0019] Optionally, the receiving and processing vehicle information sent by the corresponding sensors under different operating modes, and controlling the brake light according to the information processing result, comprises:

[0020] Under the mode three, receiving and processing the vehicle speed information sent by the vehicle speed sensor, the pedal frequency information sent by the pedal frequency sensor, the torque information sent by the torque sensor and the acceleration information sent by the acceleration sensor;

[0021] If the vehicle speed is less than the vehicle speed threshold value, the pedal frequency of the vehicle is less than the pedal frequency threshold value, the torque of the vehicle is greater than the torque threshold value, and the acceleration of the vehicle running direction is less than the acceleration threshold value, it is considered that the vehicle is braking.

[0022] Optionally, before the obtaining the type of the vehicle available sensor, further comprising:

[0023] Setting the mode one as the default operating mode.

[0024] Optionally, the vehicle information sent by the sensors is received and processed in different operation modes, and the brake light is controlled according to the processing result, comprising:

[0025] whether the mode two is selected is determined, if yes, the step of determining whether the pedal frequency is less than a pedal frequency threshold is executed, otherwise, the step of determining whether the vehicle speed is less than a vehicle speed threshold is executed;

[0026] whether the vehicle speed is less than a vehicle speed threshold is determined, if yes, the step of determining whether the mode three is selected is executed, otherwise, the step of determining whether the last state is braking is executed;

[0027] whether the mode three is selected is determined, if yes, the step of determining whether the pedal frequency is less than a pedal frequency threshold is executed, otherwise, the step of determining whether the acceleration of the vehicle running direction is less than an acceleration threshold is executed;

[0028] whether the pedal frequency is less than a pedal frequency threshold is determined, if yes, the step of determining whether the torque is greater than a torque threshold is executed, otherwise, the step of determining whether the last state is braking is executed;

[0029] whether the torque is greater than a torque threshold is determined, if yes, the step of determining whether the acceleration of the running direction is less than an acceleration threshold is executed, otherwise, the step of determining whether the last state is braking is executed;

[0030] whether the acceleration of the running direction is less than an acceleration threshold is determined, if yes, the step of considering the brake light as a braking state is executed, otherwise, the step of determining whether the braking state has lasted more than a set time is executed;

[0031] whether the last state is braking is determined, if yes, the step of determining whether the braking state has lasted more than a set time is executed, otherwise, the step of determining whether the acceleration of the running direction is less than an acceleration threshold is executed;

[0032] whether the braking state has lasted more than a set time is determined, if yes, the step of considering the brake light as a non-braking state is executed, otherwise, the step of considering the brake light as a braking state is executed;

[0033] after the step of considering the brake light as a non-braking state is executed, whether the acceleration of the running direction is less than an acceleration threshold is determined, if yes, the step of determining whether the mode two is selected is executed, otherwise, the step of considering the brake light as a non-braking state is executed;

[0034] after the step of considering the brake light as a braking state is executed, the step of determining whether the acceleration of the running direction is less than an acceleration threshold is executed.

[0035] Optionally, after the type of sensor available to the vehicle is acquired, the method further comprises:

[0036] factory calibration of the acceleration sensor is performed;

[0037] The collected three-axis acceleration is a x , a y , a z , wherein the forward direction when the vehicle travels straight on a flat road is the positive direction of the y-axis, the upward direction perpendicular to the ground is the positive direction of the z-axis, and the x-axis direction is constructed by the right-hand rule.

[0038] In a second aspect, the application further provides a brake light control device, comprising at least:

[0039] A sensor acquisition module is configured to acquire the type of sensor available to the vehicle;

[0040] An operating mode selection module is configured to select different operating modes according to the type of available sensor;

[0041] A brake information processing module is configured to receive and process vehicle information sent by the corresponding sensor under different operating modes;

[0042] A brake light control module is configured to control the lighting state of the brake light according to the result of information processing.

[0043] In a third aspect, the application further provides a vehicle, which executes the brake light control method according to any one of the embodiments of the application.

[0044] The embodiments of the application adapt different operating modes to different types of sensors equipped in different vehicle models, specifically, different operating modes can be selected according to the type of sensor equipped in the vehicle, so as to adapt to vehicle models with corresponding types of sensors, directly reuse existing sensors, and do not need to add new types of sensors, which is conducive to reducing costs. Further, each operating mode in the embodiments of the application introduces at least two sensors, when the vehicle brakes, the judgment accuracy is improved through cross-verification of multiple data, and warning signals are accurately transmitted to rear personnel and vehicles; when the vehicle is in a non-braking state, the false alarm situation of the brake light can be effectively reduced. In addition, since the control method provided by the embodiments of the application includes multiple operating modes, the types of sensors used in different operating modes are different, for vehicle models that are not equipped with multiple types of sensors, the function can also be realized through a sensor installation scheme with lower cost, and the adaptation threshold and cost are reduced.

[0045] It should be understood that the content described in this part is not intended to identify key or important features of the embodiments of the application, nor is it used to limit the scope of the application. Other features of the application will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0046] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of the contents of the embodiments of the present application and the drawings.

[0047] Figure 1 is a flow chart of a control method of a brake lamp provided by the embodiments of the present application;

[0048] Figure 2 is a flow chart of another control method of a brake lamp provided by the embodiments of the present application;

[0049] Figure 3 is a flow chart of another control method of a brake lamp provided by the embodiments of the present application;

[0050] Figure 4 is a control device of a brake lamp provided by the embodiments of the present application. DETAILED DESCRIPTION

[0051] In order to make the person skilled in the art better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort should be within the scope of protection of the present application.

[0052] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to the process, method, product or device.

[0053] Figure 1is a flow chart of a control method of a brake light provided by an embodiment of the present application. The control method of the brake light can be executed by a control device of the brake light, which can be realized by software and / or hardware, and can be configured in a controller of a vehicle such as a bicycle or an electric two-wheeled vehicle or an electric three-wheeled vehicle.

[0054] Referring to Figure 1 The method comprises the following steps:

[0055] S110, acquiring a type of sensor available to the vehicle;

[0056] Exemplarily, the sensors include an acceleration sensor, a speed sensor, a torque sensor, a pedal frequency sensor, etc. The acceleration sensor can sense the negative acceleration and the change of the motion state when the vehicle brakes or decelerates. The speed sensor can monitor the driving speed of the vehicle in real time and output the current speed value. In addition, by continuously collecting the speed, the speed change rate can also be calculated to assist in determining whether the vehicle is in a hard braking state or a soft braking state, so that the triggering of the brake light is more in line with the actual scene. The torque sensor can detect the torque generated by the force applied to the brake handle to rotate the handle around its shaft. The pedal frequency sensor can detect the rotation frequency of the pedal, reflecting the pedaling rhythm of the rider, and the mutation of the frequency can be used as a deceleration or braking signal. Exemplarily, the acceleration sensor can be installed inside the main frame or the electronic control unit of the vehicle, the speed sensor can be installed near the wheel, the pedal frequency sensor can be installed at the rear lower fork of the frame, and the torque sensor can be integrated into the shaft or support structure of the brake handle.

[0057] S120, selecting different operation modes according to the type of available sensors;

[0058] The operation modes include mode one, mode two and mode three, wherein the types of sensors called by mode one, mode two and mode three are different, and the types of sensors include at least two types. The sensor assembly of different vehicle models differs greatly, and multi-mode selection can solve the problem of sensor mismatch, control the cost and reduce hardware waste. In addition, a single sensor is easily disturbed in use, for example, using only an acceleration sensor may misjudge road bumps as deceleration. The use of at least two types of sensors can improve the judgment accuracy through cross-verification of multiple data, for example, the speed sensor detects a sudden speed drop while the acceleration sensor detects a negative acceleration, and the combination of the two can double-check that the vehicle is in a real braking state, thereby reducing the false positives and false negatives of the brake light.

[0059] S130, in different operation modes, receiving and processing vehicle information sent by the corresponding sensors; and controlling the lighting state of the brake light according to the result of information processing.

[0060] Specifically, different operating modes correspond to different sensor combinations. The system will first receive data specifically, and then process the data through the preset logic to ensure that only valid information in the current mode is focused on. The result of data processing will determine the on / off state of the brake light. If the processing result meets the braking condition, the system will control the brake light to turn on and send a warning signal to the rear; if the processing result does not meet the braking condition, the system will determine that there is no braking intention and keep the brake light off to avoid false positives.

[0061] The embodiments of the present application adapt different operating modes for different types of sensors equipped on different vehicle models. Specifically, different operating modes can be selected according to the types of sensors equipped on the vehicle, so as to adapt to vehicle models with corresponding types of sensors, directly reuse existing sensors, and do not need to add new sensor types, which is conducive to reducing costs. Further, each operating mode in the embodiments of the present application introduces at least two sensors. When the vehicle brakes, the judgment accuracy is improved through multiple data cross verification, and the warning signal is accurately transmitted to the rear personnel and vehicles; in the non-braking state of the vehicle, the false positive situation of the brake light can be effectively reduced. In addition, since the control method provided by the embodiments of the present application includes multiple operating modes, the types of sensors used in different operating modes are different. For vehicle models that are not equipped with multiple types of sensors, the function can also be realized through the selection of a sensor with lower cost, thereby reducing the adaptation threshold and cost.

[0062] In one embodiment, optionally, mode one calls the vehicle speed sensor and the acceleration sensor; mode two calls the pedal frequency sensor, the torque sensor and the acceleration sensor; mode three calls the vehicle speed sensor, the pedal frequency sensor, the torque sensor and the acceleration sensor.

[0063] Among them, mode one is suitable for vehicle models equipped with only basic sensors. Such vehicle models do not need to rely on pedal frequency and torque data related to riding, but can judge braking intention only through speed change and deceleration, to meet the basic safety warning needs. Mode two is suitable for vehicle models that need to judge riding actions. The deceleration intention of such vehicle models is often reflected through the riding action of stopping pedaling. Mode three is suitable for vehicle models with complete sensor configuration and high safety precision requirements. Such vehicle models need to consider speed change, riding action and power output to achieve comprehensive braking judgment.

[0064] Figure 2 is a flowchart of another control method of the brake light provided by the embodiments of the present application. Referring to Figure 2 In one embodiment, optionally, S130 includes:

[0065] S131, in mode one, receiving and processing the vehicle speed information sent by the vehicle speed sensor and the acceleration information sent by the acceleration sensor; if the vehicle speed is less than the vehicle speed threshold value, and the acceleration of the vehicle travel direction is less than the acceleration threshold value, it is considered that the vehicle has performed brake operation.

[0066] The vehicle speed threshold value is a pre-set low speed standard, and the condition is used to limit the scene range of brake judgment. The vehicle may appear slight deceleration in high-speed driving, but such deceleration is mostly non-active brake; when the vehicle speed is lower than the vehicle speed threshold value, the vehicle is closer to the state of about to brake, and the deceleration behavior at this time is more likely to be active brake. The acceleration threshold value is a pre-set deceleration judgment standard, when the acceleration of the vehicle travel direction is less than the threshold value, it means that the deceleration amplitude of the vehicle has reached the degree of active brake, rather than slight speed fluctuation caused by factors such as road bump. If only the acceleration is less than the acceleration threshold value, the negative acceleration may be generated when the throttle is released at high speed, which is easy to misjudge as brake; if only the vehicle speed is less than the vehicle speed threshold value, the low-speed uniform driving will also satisfy the condition, which cannot distinguish uniform speed from brake deceleration. Only when the vehicle speed is lower than the vehicle speed threshold value and the acceleration is less than the acceleration threshold value at the same time, it is determined as brake. The double condition judgment of mode one can accurately identify the active brake in low-speed scene, and filter the non-brake scenes such as high-speed sliding and low-speed uniform driving, effectively reducing the false alarm of brake light.

[0067] S132, in mode two, receiving and processing the pedal frequency information sent by the pedal frequency sensor, the torque information sent by the torque sensor and the acceleration information sent by the acceleration sensor; if the pedal frequency of the vehicle is less than the pedal frequency threshold value, the torque of the vehicle is greater than the torque threshold value, and the acceleration of the vehicle travel direction is less than the acceleration threshold value, it is considered that the vehicle has performed brake operation.

[0068] The pedal frequency threshold value is a pre-set brake scene pedal frequency standard, when the detected pedal frequency is less than the threshold value, the pedal frequency drop state can be identified. When the rider performs brake operation, even if he does not completely stop pedaling, the pedal frequency will also decrease greatly, which indicates that the rider has actively reduced the power output, and the vehicle enters the state of waiting to brake or braking. The torque threshold value is a pre-set minimum effective torque standard applied to the brake handle during braking, when the detected torque is greater than the threshold value, it means that the rider is squeezing the brake handle, and the force has reached the effective range of triggering the brake function. The three conditions of mode two can cover the typical riding braking scene of pedaling while braking, solving the missing report problem of not stopping pedaling in the traditional scheme and the false alarm problem of lighting the light when lightly touching the brake handle.

[0069] S133, under mode three, receiving and processing the vehicle speed information sent by the vehicle speed sensor, the pedal frequency information sent by the pedal frequency sensor, the torque information sent by the torque sensor and the acceleration information sent by the acceleration sensor; if the vehicle speed of the vehicle is less than the vehicle speed threshold, the pedal frequency of the vehicle is less than the pedal frequency threshold, the torque of the vehicle is less than the torque threshold, and the acceleration of the vehicle running direction is less than the acceleration threshold, it is considered that the vehicle has performed brake operation.

[0070] Among them, the four conditions of mode three realize the full-dimensional judgment of vehicle speed, pedal frequency, torque and acceleration through four types of sensors, which can adapt to key safety scenes such as full braking of high-end vehicles, and the misjudgment rate is extremely low; this mode not only can reduce the scene misjudgment under complex road conditions and adapt to high-precision warning needs, but also can build a brake system through multiple sensors to avoid single sensor failure leading to brake light out of control.

[0071] On the basis of the above embodiments, optionally, before acquiring the type of sensors available to the vehicle, the method further comprises:

[0072] Mode one is set as the default running mode.

[0073] Among them, at the initial stage of vehicle starting or when the sensor configuration identification is abnormal, if the system is not set to the default mode, it may be in a state where no sensor is available and the braking cannot be judged, resulting in that the brake light cannot be normally triggered. Mode one as the default mode can directly call the two types of sensors of vehicle speed and acceleration, at least covering the scene of low-speed braking, ensuring that the basic warning function is not missing, and gaining time for subsequent sensor identification and mode switching.

[0074] Figure 3 is the flowchart of another control method of brake light provided by the embodiment of the application. Referring to Figure 3 In an embodiment, the method optionally comprises:

[0075] S210, mode selection;

[0076] Among them, the mode selection is performed according to the type of sensors configured by the vehicle, and the type of sensors can be an acceleration sensor, a vehicle speed sensor, a torque sensor and a pedal frequency sensor; if the type of sensors is a vehicle speed sensor and an acceleration sensor, it is determined that the running mode is mode one; if the type of sensors is a pedal frequency sensor, a torque sensor and an acceleration sensor, it is determined that the running mode is mode two; if the type of sensors is a vehicle speed sensor, a pedal frequency sensor, a torque sensor and an acceleration sensor, it is determined that the running mode is mode three.

[0077] S220, determining whether mode two is selected; if yes, executing S250; otherwise, executing S230;

[0078] S230, judging whether the vehicle speed is less than a vehicle speed threshold value; if yes, executing S240; otherwise executing S290;

[0079] S240, judging whether mode three is selected; if yes, executing S250; otherwise executing S270;

[0080] S250, judging whether the pedal frequency is less than a pedal frequency threshold value; if yes, executing S260; otherwise executing S290;

[0081] S260, judging whether the torque is greater than a torque threshold value; if yes, executing S270; otherwise executing S290;

[0082] S270, judging whether the acceleration of the travel direction is less than an acceleration threshold value; if yes, executing S280; otherwise executing S2A0;

[0083] S280, considering that the brake light is in the braking state;

[0084] S290, judging whether the last state is braking; if yes, executing S2A0; otherwise executing S270;

[0085] S2A0, judging whether the braking state has lasted for more than a set time; if yes, executing S2B0; otherwise executing S280; S2B0, considering that the brake light is in the non-braking state;

[0086] After executing S2B0, S2C0 is executed;

[0087] S2C0, judging whether the acceleration of the travel direction is less than an acceleration threshold value; if yes, returning to execute S220; otherwise returning to execute S2B0;

[0088] After executing S280, S270 is returned to execute.

[0089] The technical scheme provided by the embodiment of the application can solve the problem of various misjudgments or missed braking of the simple intelligent brake light in the prior art due to the limited road condition recognition capability. For example, when continuously decelerating on a long downhill, the prior art is limited by technology and can only make the brake light turn on and last for a period of time, and after the time is exceeded, even if the vehicle is still on the downhill and in the braking state, the brake light will not turn on. The present scheme can make the brake light continuously in the braking state, thereby continuously reminding the rear personnel or vehicle. For another example, when encountering a bumpy road section, the brake light of the prior art is likely to misjudge, resulting in an untrustworthy warning effect. When mode two and mode three of the present scheme are used, the possibility of such misjudgment can be eliminated. Meanwhile, since the present application allows selective increase or decrease of the number of sensors, some sensors can be added or removed according to the product positioning in actual use, and modular components can also be provided for user upgrading in the later stage, so that flexible trade-off between cost and effect can be realized.

[0090] In the above embodiments, optionally, if the sensors configured by the vehicle include an acceleration sensor, after obtaining the sensor type that can be called by the vehicle, the method further comprises:

[0091] factory calibration is performed on the acceleration sensor;

[0092] The three-axis acceleration collected is a x , a y , a z , wherein the forward direction when the vehicle travels straight on a flat road is the positive direction of the y-axis, the upward direction perpendicular to the ground is the positive direction of the z-axis, and the x-axis direction is constructed by the right-hand system.

[0093] The factory calibration performed on the acceleration sensor can eliminate the factory error of the sensor itself, so that the acceleration data output by the sensor under the condition of no force or standard force is consistent with the theoretical value. The acceleration collected by the acceleration sensor ultimately reflects that when the vehicle produces a braking action, the acceleration a y in the direction of travel is less than 0. When the vehicle performs a braking action, a deceleration opposite to the forward direction is generated, and at this time the acceleration measurement value along the positive direction of the y-axis is less than 0.

[0094] Figure 4 A control device of a brake light is provided by an embodiment of the present application. The control device can be realized by software and / or hardware, and the control device can be configured in a controller of a vehicle such as a bicycle or an electric two-wheeled vehicle or an electric three-wheeled vehicle. As shown in FIG. 1, the device at least includes: Figure 4

[0095] A sensor acquisition module 210 is configured to acquire a sensor type that can be called by the vehicle;

[0096] A running mode selection module 220 is configured to select different running modes according to the sensor type that can be called;

[0097] A brake information processing module 230 is configured to receive and process vehicle information sent by the corresponding sensor in different running modes;

[0098] A brake light control module 240 is configured to control the lighting state of the brake light according to the result of information processing.

[0099] Optionally, the brake information processing module 230 is specifically configured to:

[0100] In mode one, receive and process vehicle speed information sent by a vehicle speed sensor and acceleration information sent by an acceleration sensor.

[0101] In mode two, receive and process pedal frequency information sent by a pedal frequency sensor, torque information sent by a torque sensor, and acceleration information sent by an acceleration sensor.​

[0102] In the third mode, the vehicle speed information sent by the vehicle speed sensor, the pedal frequency information sent by the pedal frequency sensor, the torque information sent by the torque sensor and the acceleration information sent by the acceleration sensor are received and processed.

[0103] Optionally, the brake light control module 240 is specifically configured to:

[0104] If the vehicle speed of the vehicle is less than the vehicle speed threshold value, and the acceleration of the vehicle in the direction of travel is less than the acceleration threshold value, it is considered that the vehicle is performing a braking operation.

[0105] If the pedal frequency of the vehicle is less than the pedal frequency threshold value, the torque of the vehicle is greater than the torque threshold value, and the acceleration of the vehicle in the direction of travel is less than the acceleration threshold value, it is considered that the vehicle is performing a braking operation.

[0106] If the vehicle speed of the vehicle is less than the vehicle speed threshold value, the pedal frequency of the vehicle is less than the pedal frequency threshold value, the torque of the vehicle is greater than the torque threshold value, and the acceleration of the vehicle in the direction of travel is less than the acceleration threshold value, it is considered that the vehicle is performing a braking operation.

[0107] The brake light control device provided by the embodiment of the present application can perform the brake light control method provided by any embodiment of the present application, and has the corresponding function modules and beneficial effects of the execution method.

[0108] Optionally, the embodiment of the present application also provides a vehicle, which performs the brake light control method according to any embodiment of the present application, and has the corresponding beneficial effects. The vehicle includes a controller; the controller includes at least one processor and a memory in communication connection with the at least one processor; the memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor to enable the at least one processor to perform the brake light control method of any embodiment of the present application. Exemplarily, the vehicle can be a bicycle or an electric two-wheeled vehicle or an electric three-wheeled vehicle.

[0109] Note that the above is only the preferred embodiment of the present application and the technical principle applied. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and those skilled in the art can make various obvious changes, readjustments and substitutions without departing from the protection scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. A control method of a brake light, characterized by, include: Obtain the types of sensors that the vehicle can access; the sensors include acceleration sensors, vehicle speed sensors, torque sensors, and cadence sensors; Different operating modes are selected based on the available sensor types; the operating modes include: Mode 1, Mode 2, and Mode 3; wherein the types of sensors called by Mode 1, Mode 2, and Mode 3 are different, and the sensor types include at least two. In different operating modes, the vehicle receives and processes the vehicle information sent by the corresponding sensors; and controls the illumination state of the brake lights based on the results of the information processing.

2. The control method of a brake light according to claim 1, characterized by, The first mode invokes the vehicle speed sensor and the acceleration sensor; Mode 2 invokes the cadence sensor, the torque sensor, and the acceleration sensor; Mode 3 invokes the vehicle speed sensor, the cadence sensor, the torque sensor, and the acceleration sensor.

3. The control method of a brake light according to claim 2, characterized by, The system receives and processes vehicle information sent by the corresponding sensors under different operating modes. And based on the results of information processing, control the illumination status of the brake lights, including: In the aforementioned mode, the vehicle speed information sent by the vehicle speed sensor and the acceleration information sent by the acceleration sensor are received and processed. If the vehicle's speed is less than a speed threshold and the vehicle's acceleration in the direction of travel is less than an acceleration threshold, then the vehicle is considered to have performed a braking operation.

4. The control method of a brake light according to claim 2, characterized by, The system receives and processes vehicle information sent by the corresponding sensors under different operating modes. And based on the results of information processing, control the illumination status of the brake lights, including: In the second mode, the cadence information sent by the cadence sensor, the torque information sent by the torque sensor, and the acceleration information sent by the acceleration sensor are received and processed. If the vehicle's cadence is less than the cadence threshold, the vehicle's torque is greater than the torque threshold, and the vehicle's acceleration in the direction of travel is less than the acceleration threshold, then the vehicle is considered to have performed a braking operation.

5. The control method of a brake light according to claim 2, characterized by, The system receives and processes vehicle information sent by the corresponding sensors under different operating modes. And based on the results of information processing, control the illumination status of the brake lights, including: In mode three, the vehicle speed information sent by the vehicle speed sensor, the cadence information sent by the cadence sensor, the torque information sent by the torque sensor, and the acceleration information sent by the acceleration sensor are received and processed. If the vehicle speed is less than a speed threshold, the vehicle cadence is less than a cadence threshold, the vehicle torque is greater than a torque threshold, and the vehicle acceleration in the direction of travel is less than an acceleration threshold, then the vehicle is considered to have performed a braking operation.

6. The control method of a brake light according to claim 1 or 2, characterized by, Before obtaining the types of sensors that the vehicle can access, the following is also included: Set mode one as the default operating mode.

7. The control method of a brake light according to claim 1 or 2, characterized by, The system receives and processes vehicle information sent by the corresponding sensors under different operating modes. And based on the results of information processing, control the illumination status of the brake lights, including: Determine whether mode two has been selected; if so, proceed to the step of determining whether the cadence is less than the cadence threshold; otherwise, proceed to the step of determining whether the vehicle speed is less than the vehicle speed threshold. Determine if the vehicle speed is less than the vehicle speed threshold; if so, proceed to determine if mode three has been selected; otherwise, proceed to determine if the previous state was braking. Determine whether mode 3 has been selected; if so, proceed to the step of determining whether the cadence is less than the cadence threshold; otherwise, proceed to the step of determining whether the acceleration in the vehicle's direction of travel is less than the acceleration threshold. Determine if the cadence is less than the cadence threshold; if so, proceed to the step of determining if the torque is greater than the torque threshold; otherwise, proceed to the step of determining if the previous state was braking. Determine if the torque is greater than the torque threshold; if so, proceed to the step of determining if the acceleration in the direction of travel is less than the acceleration threshold; otherwise, proceed to the step of determining if the previous state was braking. Determine whether the acceleration in the direction of travel is less than the acceleration threshold; if so, proceed to the step of assuming the brake lights are in a braking state; otherwise, proceed to the step of determining whether the braking state has lasted for more than a set time. Determine if the previous state was braking; if so, proceed to the step of determining if the braking state has lasted for more than a set time; otherwise, proceed to the step of determining if the acceleration in the direction of travel is less than the acceleration threshold. Determine whether the braking state has lasted for more than a set time; if so, proceed to the step of assuming the brake lights are in a non-braking state; otherwise, proceed to the step of assuming the brake lights are in a braking state. After performing the step of determining that the brake lights are in a non-braking state, it is determined whether the acceleration in the direction of travel is less than the acceleration threshold; if so, it returns to the step of determining whether the second mode has been selected; otherwise, it returns to the step of determining that the brake lights are in a non-braking state. After performing the step of assuming the brake lights are in a braking state, return to the step of determining whether the acceleration in the direction of travel is less than the acceleration threshold.

8. The control method of a brake light according to claim 1, characterized by, After obtaining the types of sensors that the vehicle can access, the following is also included: The accelerometer sensor is calibrated at the factory. The three-axis acceleration collected is a x , a y , a z , wherein the forward direction when the vehicle drives straight on a flat road is the positive direction of the y-axis, the direction perpendicular to the ground upward is the positive direction of the z-axis, and the x-axis direction is constructed by the right-hand system.

9. A control device for a brake light, characterized by At least including: The sensor acquisition module is used to acquire the types of sensors that the vehicle can access; The operation mode selection module is used to select different operation modes according to the available sensor types; The braking information processing module is used to receive and process vehicle information sent by the corresponding sensors under different operating modes; The brake light control module is used to control the illumination status of the brake lights based on the results of information processing.

10. A vehicle, characterized in that, The vehicle performs the brake light control method as described in any one of claims 1-8.

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