TW202012239A - Control mehotd for anti-lock braking and anti-lock braking control system - Google Patents

Abstract

A control method of anti-lock braking adapted to a bike including the following steps: determining whether a brake is enabled by a rider by a computing unit; detecting a wheel speed of the bike by a first sensor; determining whether to perform a braking process according to the wheel speed and a first preset value by the computing unit, wherein the braking process includes obtaining a deceleration of a body of the bike and performing a braking determination according to the deceleration of the body and a deceleration preset value; determining whether the brake is released by the rider by the computing unit after performing the braking process; determining whether to re-perform the braking process according to a speed of the bike and a second preset value by the computing unit when the brake is not released by the rider.

Description

Anti-lock brake control method and system

The invention relates to a bicycle braking method and system, in particular to a bicycle anti-lock braking control method and system.

As modern people pay more and more attention to sports and leisure activities, the bicycle industry is booming. In order to improve the riding safety of bicycles, some bicycles on the market today have adopted an anti-lock braking system (ABS). This type of braking system mainly uses a fixed actuation interval to point the brakes, that is, the brake pads. The retractable point brake function can prevent the wheels from slipping due to the brake lock, which may cause driving accidents.

However, this type of braking system may still cause the bicycle to slip due to the fixed-point braking action, and it may also cause excessive power consumption. Therefore, in the related art, there is a need for a braking system that can ensure that the wheels of a bicycle will not slip and consume excessive energy.

The present invention proposes an anti-lock brake control method and system, which mainly detects the current deceleration of the vehicle body, based on which it is judged to perform brake release or brake maintenance, thereby improving the safety of the bicycle and reducing unnecessary system power consumption.

According to an embodiment of the present invention, an anti-lock braking control method is disclosed for a bicycle. The anti-lock braking control method includes the following steps: an arithmetic unit is used to determine whether a bicycle brake is activated by a driver. When it is determined that the brake is actuated by the driver, the wheel speed of the bicycle is sensed with the first sensor. The computing unit judges whether to execute the brake braking program according to the wheel speed and the first set value, wherein the brake braking program includes obtaining the bicycle body deceleration, and the computing unit performs the braking judgment according to the vehicle body deceleration and the deceleration setting value, the brake The judgment includes a brake release command and a brake hold command. After executing the braking program, the arithmetic unit determines whether the brake is released by the driver. When it is determined that the brake is not released by the driver, the arithmetic unit determines whether to execute the brake braking procedure again according to the speed of the bicycle and the second set value.

According to an embodiment of the present invention, an anti-lock brake control system is disclosed, which is suitable for bicycles. The anti-lock brake control system includes an arithmetic unit, a first sensor, and a second sensor. The arithmetic unit is used to judge that the brake of the bicycle is actuated or released by the driver, and is used to execute the brake braking procedure. The first sensor is electrically connected to the computing unit and used to sense the wheel speed of the bicycle when the brake is actuated, so that the computing unit determines whether the wheel speed is less than or equal to the first set value to determine whether to execute the brake braking procedure. The second sensor is electrically connected to the computing unit and is used to sense the deceleration of the bicycle body during the braking process when the wheel speed is less than or equal to the first set value, so that the computing unit determines that the deceleration of the vehicle exceeds The brake judgment is executed at the deceleration setting value. Among them, the computing unit is further used to determine whether the brake is released by the driver after the execution of the braking process, to further determine whether the speed of the bicycle is less than or equal to the second set value, and accordingly decide whether to execute the braking process again.

In summary, in the anti-lock braking control method and system proposed by the present invention, it is mainly to first determine whether the wheel speed drops to the set value, and then to detect the current vehicle body with a sensor (such as an accelerometer) According to the deceleration, the arithmetic unit judges that the brake should be controlled to release the braking state or continue to maintain the braking state, and finally determine whether the vehicle speed is less than or equal to another set value, and then decide whether to perform the aforementioned braking control again. In this way, the flexibility of the anti-lock braking of the wheels of the bicycle can be effectively improved, thereby improving the safety of driving and reducing unnecessary system power consumption.

The above description of the disclosure and the following description of the embodiments are used to demonstrate and explain the spirit and principle of the present invention, and provide a further explanation of the scope of the patent application of the present invention.

The following describes in detail the detailed features and advantages of the present invention in the embodiments. The content is sufficient for any person skilled in the relevant art to understand and implement the technical content of the present invention, and according to the contents disclosed in this specification, the scope of patent application and the drawings Anyone skilled in the relevant art can easily understand the purpose and advantages of the present invention. The following examples further illustrate the views of the present invention in detail, but do not limit the scope of the present invention in any way.

Please refer to FIG. 1, which is a functional block diagram of an anti-lock brake control system for bicycles according to an embodiment of the present invention. As shown in FIG. 1, the anti-lock brake control system 1 includes an arithmetic unit 10, a first sensor 11 and a second sensor 12. In practice, the anti-lock brake control system 1 can be mounted on the bicycle body and interlocked with the bicycle brake (not shown), and the internal arithmetic unit 10 and the first sensor 11 and the second sensor 12 Electrical connection. In actual operation, the computing unit 10 is mainly used to first determine whether the brake of the bicycle is actuated by the driver. In more detail, the arithmetic unit 10 can mainly obtain the actuation signal of the operator pressing the handlebar through the magnetic reed switch installed on the brake handlebar to determine whether the bicycle brake is actuated by the driver. In addition, if the bicycle is equipped with a hydraulic brake system, the arithmetic unit 10 can also obtain the aforementioned actuation signal for judgment mainly by a pressure switch arranged in the hydraulic brake oil path. When the arithmetic unit 10 determines that the driver actuates the brake of the bicycle, the first sensor 11 senses the wheel speed of the bicycle and transmits the wheel speed back to the arithmetic unit 10, so that the arithmetic unit 10 can determine whether the wheel speed is less than Or equal to the first set value to decide whether to execute the brake braking program.

In one example, when the computing unit 10 determines that the wheel speed is less than or equal to the first set value, it will decide to execute a braking procedure. In this braking process, the second sensor 12 senses the deceleration of the bicycle body and returns the deceleration of the vehicle body to the computing unit 10. At this time, the computing unit 10 may perform the brake judgment according to the vehicle body deceleration and a deceleration setting value, where the brake judgment includes a brake release command and a brake hold command.

Specifically, when the arithmetic unit 10 determines that the deceleration of the vehicle body exceeds the deceleration setting value, the brake determination performed is a brake release command. Conversely, when the arithmetic unit 10 determines that the deceleration of the vehicle body does not exceed the deceleration setting value, the brake determination performed is a brake holding command. More specifically, in the brake braking program, if it is determined that the deceleration of the vehicle body exceeds the deceleration setting value, it means that the deceleration of the bicycle is too large. At this time, the computing unit 10 will issue a brake release command to control the release of the bicycle brake. Brake status. Conversely, if it is determined that the deceleration of the vehicle body does not exceed the deceleration setting value, it means that the deceleration of the bicycle is not too large. At this time, the computing unit 10 will issue a brake maintenance command to control the bicycle brake to continue to maintain the braking state . In another example, when the arithmetic unit 10 determines that the wheel speed is greater than the first set value, it means that the bicycle has not yet approached the slip state, so the arithmetic unit 10 again determines whether the brake is actuated by the driver.

According to the foregoing, after performing this braking procedure, the computing unit 10 determines whether the brake is released by the driver to further determine whether the bicycle speed is less than or equal to the second set value, and accordingly decides whether to perform the aforementioned braking procedure again. In detail, in one embodiment, when the computing unit 10 determines that the driver has not released the brake, it will further determine whether the current speed of the bicycle is less than or equal to the second set value. The current vehicle speed can be calculated by the arithmetic unit 10 according to the current wheel speed, or can be obtained by directly measuring the vehicle body speed through another sensor. If the current vehicle speed is greater than the second set value, the computing unit 10 will execute the aforementioned braking procedure again. In practice, the computing unit 10 may be a processor with an operation/judgment function, the first sensor 11 is a wheel speed sensor for sensing the rotation speed of a bicycle wheel (such as a front wheel), and the second sensor The device 12 is an accelerometer (or referred to as a g-sensor) for sensing the acceleration of the bicycle body.

Please refer to FIG. 2, which is a flowchart of a method for controlling an anti-lock brake of a bicycle according to an embodiment of the present invention. The anti-lock braking control method can be executed by the anti-lock braking control system 1 of FIG. 1. As shown in FIG. 2, in step S201, the arithmetic unit 10 determines whether the brake of the bicycle is actuated by the driver. In step S203, when it is determined that the brake is actuated by the driver, the wheel speed of the bicycle is sensed by the first sensor 11. In step S205, the computing unit 10 determines whether to execute the braking procedure according to the wheel speed and the first set value. Specifically, the arithmetic unit 10 compares the wheel speed with the first set value and determines whether to execute the brake braking procedure according to the comparison result. In this braking process, the system will obtain the deceleration of a bicycle body, and perform a braking judgment based on the deceleration of the vehicle body and a deceleration setting value. The flow steps of this brake braking program are further described in the following paragraphs and will not be repeated here.

Next, in step S207, after the brake braking program is executed, the arithmetic unit 10 determines whether the brake is released by the driver. In step S209, when it is determined that the brake is not released by the driver, the computing unit 10 determines whether to perform the brake braking procedure again according to the bicycle speed and the second set value. In other words, the arithmetic unit 10 compares the vehicle speed with the second set value and determines whether to execute the brake braking procedure again according to the comparison result. If the speed of the bicycle is greater than the second set value, it means that the speed of the bicycle has not fallen below the safe value. In order to prevent the bicycle from slipping, the arithmetic unit 10 will execute the aforementioned braking procedure again. Conversely, if the speed of the bicycle is less than or equal to the second set value, it means that the speed of the bicycle has fallen below the safe value without skidding. At this time, the method flow of the anti-lock brake control method can be directly ended.

The present invention determines whether to execute the brake braking program by comparing the wheel speed with the set value. When the wheel speed is lower than or equal to the set value, it means that the bicycle is about to approach the slipping state, so the system will be triggered to perform the brake braking process to timely A brake braking judgment is made according to the amount of deceleration of the bicycle, that is, the judgment is to release the brake or continue to maintain the braking state. In this way, it can effectively prevent the bicycle wheels from locking and slipping, and this control method can overcome the excessive power consumption loss caused by the existing point-release brake mechanism.

Please refer to FIG. 3, which is a detailed method flowchart of an anti-lock braking control method for a bicycle according to an embodiment of the present invention. The anti-lock braking control method can be executed by the anti-lock braking control system 1 of FIG. 1. Steps S301 and S303 of FIG. 3 are similar to steps S201 and S203 of FIG. 2. In step S301, the arithmetic unit 10 determines whether the brake of the bicycle is actuated by the driver. When it is determined that the brake of the bicycle is actuated by the driver, in step S303, the wheel speed of the bicycle is sensed by the first sensor 11.

The step of using the computing unit 10 to determine whether to execute the brake program according to the wheel speed and the first set value shown in step S205 of FIG. 2 includes step S305 shown in FIG. 3, and the computing unit 10 determines whether the wheel speed of the bicycle is less than or equal to Equal to the first set value. When the arithmetic unit 10 determines that the wheel speed is less than or equal to the first set value, the arithmetic unit 10 executes the braking procedure, as shown in step S307. The braking procedure shown in step S307 includes steps S3071 to S3074.

In step S3071, the second sensor 12 measures the deceleration of the vehicle body. In step S3072, the arithmetic unit 10 determines whether the vehicle body deceleration exceeds the deceleration set value. If the deceleration of the vehicle body exceeds the deceleration setting value, in step S3073, the computing unit 10 issues a brake release command to control the brake to release the brake state. If the deceleration of the vehicle body does not exceed the deceleration setting value, in step S3074, the arithmetic unit 10 issues a brake holding command to control the brake to continue to maintain the braking state.

Similar to step S207 of FIG. 2, after executing this braking procedure, in step S309 of FIG. 3, the arithmetic unit 10 determines whether the brake is released by the driver. In step S311, the speed of the bicycle is measured. In practice, the vehicle speed of the bicycle can be generated after the wheel speed measured by the first sensor 11 is calculated by the arithmetic unit 10, or can be directly measured by another vehicle speed sensor. As shown in step S209 of FIG. 2, the calculation unit 10 determines whether to execute the brake braking procedure again according to the bicycle speed and the second set value. Step S313 of FIG. 3 is included, and the calculation unit 10 determines whether the bicycle speed is less than or equal to the second setting value. When it is determined that the speed of the bicycle is greater than the second set value, the arithmetic unit 10 executes the aforementioned braking procedure again. Otherwise, the method flow of this anti-lock braking control method is directly ended.

Based on the above, in the anti-lock braking control method and system proposed by the present invention, it is mainly to first determine whether the wheel speed has dropped to the set value, and then to detect the current vehicle body by a sensor (such as an accelerometer) According to the deceleration, the arithmetic unit judges that the brake should be controlled to release the braking state or continue to maintain the braking state, and finally determine whether the vehicle speed is less than or equal to another set value, and then decide whether to perform the aforementioned braking control again. In this way, the flexibility of the anti-lock braking of the wheels of the bicycle can be effectively improved, thereby improving the safety of driving and reducing unnecessary system power consumption.

Although the present invention is disclosed as the foregoing embodiments, it is not intended to limit the present invention. Without departing from the spirit and scope of the present invention, all modifications and retouching are within the scope of patent protection of the present invention. For the protection scope defined by the present invention, please refer to the attached patent application scope.

1: anti-lock brake control system 10: arithmetic unit 11: first sensor 12: second sensor

FIG. 1 is a functional block diagram of an anti-lock brake control system for bicycles according to an embodiment of the invention. FIG. 2 is a method flowchart of an anti-lock brake control method suitable for a bicycle according to an embodiment of the present invention. FIG. 3 is a detailed method flowchart of an anti-lock brake control method suitable for a bicycle according to an embodiment of the present invention.

Claims (8)

An anti-lock braking control method is applicable to a bicycle. The anti-lock braking control method includes: determining whether a brake of the bicycle is actuated by a driver with an arithmetic unit; when determining that the brake is actuated by the driver At a time, a first sensor is used to sense a wheel speed of the bicycle; the computing unit determines whether to execute a brake braking procedure based on the wheel speed and a first set value, wherein the brake braking procedure includes: obtaining the bicycle's speed A deceleration of the vehicle body; and the operation unit executes a braking judgment based on the deceleration of the vehicle body and a deceleration setting value, the braking judgment includes a brake release instruction and a brake holding instruction; after executing the brake braking procedure, The arithmetic unit determines whether the brake is released by the driver; and when it is determined that the brake is not released by the driver, the arithmetic unit determines whether to perform the brake braking again according to a speed of the bicycle and a second set value program. The anti-lock braking control method according to claim 1, wherein using the arithmetic unit to determine whether to execute the braking procedure based on the wheel speed and the first set value includes: when the arithmetic unit determines that the wheel speed is less than or equal to the At the first setting value, the brake unit is executed by the arithmetic unit, and the deceleration of the vehicle body is measured by a second sensor in the brake program. The anti-lock braking control method according to claim 1, wherein the execution of the braking judgment by the arithmetic unit according to the vehicle body deceleration and the deceleration setting value includes: when the vehicle body deceleration exceeds the deceleration setting value The arithmetic unit issues the brake release command; and when the deceleration of the vehicle body does not exceed the deceleration setting value, the arithmetic unit issues the brake holding command. The anti-lock braking control method according to claim 1, wherein the step of using the arithmetic unit to judge whether to execute the brake braking procedure again according to the vehicle speed of the bicycle and the second set value includes when determining that the vehicle speed is greater than the second When the value is set, it returns to the step of executing the brake program again. An anti-lock brake control system is suitable for a bicycle. The anti-lock brake control system includes: an arithmetic unit for judging that a brake of the bicycle is actuated or released by the driver, and for performing a brake braking A first sensor, electrically connected to the arithmetic unit, the first sensor is used to sense a wheel speed of the bicycle when the brake is actuated, so that the arithmetic unit determines whether the wheel speed is less than or Equal to a first set value to determine whether to execute the braking process; and a second sensor electrically connected to the arithmetic unit, the second sensor is used when the wheel speed is less than or equal to the first set value In the braking process, the deceleration of a body of the bicycle is sensed, so that the arithmetic unit performs a braking judgment according to the deceleration of the body and a deceleration setting value; wherein, the arithmetic unit is further used to execute After the brake braking procedure is completed, it is determined whether the brake is released by the driver to further determine whether a speed of the bicycle is less than or equal to a second set value, thereby determining whether to perform the brake braking procedure again. The anti-lock braking control system according to claim 5, wherein the arithmetic unit is further used to execute the braking brake again when it is determined that the brake is not released by the driver and the speed of the bicycle is greater than the second set value program. The anti-lock brake control system according to claim 5, wherein the brake judgment includes a brake release command and a brake hold command. The anti-lock braking control system according to claim 5, wherein the first sensor is a wheel speed sensor, and the second sensor is an accelerometer.

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