CN212099221U

CN212099221U - Automatic speed control device for bicycle

Info

Publication number: CN212099221U
Application number: CN201921764251.1U
Authority: CN
Inventors: 张雅婷; 代港; 刘子源; 张世春; 张雪艳; 朱胜兰
Original assignee: Zhongzhuhongwei Wuhan Technology Co ltd; China University of Geosciences
Current assignee: Zhongzhuhongwei Wuhan Technology Co ltd; China University of Geosciences
Priority date: 2019-10-21
Filing date: 2019-10-21
Publication date: 2020-12-08
Anticipated expiration: 2029-10-21

Abstract

The utility model discloses a control device for automatic speed control of a bicycle, which comprises an integrated circuit board, a direct current motor, a steering engine, a Hall sensor module, an ultrasonic sensor module, a motor driving chip and a 7.2V battery power supply; the integrated circuit board comprises a main control chip, an isolation CAN module chip, a motor, a steering engine voltage stabilizing chip and a motor driving chip, the integrated circuit is used for executing an automatic bicycle speed control algorithm, the direct current motor is used for tensioning a bicycle brake cable to control the running speed of the bicycle, the ultrasonic sensor module is used for collecting distance information of a front obstacle of the bicycle and sensing the front obstacle of the bicycle, and the Hall sensor module is used for collecting real-time speed and acceleration information of a rear wheel of the bicycle. The utility model discloses a collection, processing, judgement to road surface obstacle information in bicycle the place ahead and speed of a motor vehicle information are favorable to improving the security that the bicycle traveles.

Description

Automatic speed control device for bicycle

Technical Field

The utility model relates to a bicycle technical field especially relates to an automatic fast controlling means of accuse of bicycle.

Background

With the improvement of environmental awareness of people, bicycles are more and more favored as important traffic for green trips. However, the bicycle has certain potential safety hazards while meeting the requirements of people on light-weight vehicles. When people use the bicycle, particularly teenagers, personal injury is caused by wrong judgment of distance information of obstacles on a driving road due to too high driving speed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to the above-mentioned problem, provide a quick controlling means of automatic accuse of bicycle, through collection, processing, the judgement to road surface barrier information and the speed of a motor vehicle information in bicycle the place ahead, and then control the speed of traveling of bicycle, be favorable to improving the security that the bicycle traveled.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a control device for automatically controlling the speed of a bicycle comprises an integrated circuit board, a direct current motor, a steering engine, a Hall sensor module, an ultrasonic sensor module and a 7.2V battery power supply; the integrated circuit board comprises a main control chip, an isolated CAN module chip, a motor, a steering engine voltage stabilizing chip and a motor driving chip, wherein the integrated circuit board is used for executing an algorithm of automatic control of the speed of the bicycle, a battery power supply supplies power to the main control chip through a voltage stabilizing power supply chip, the battery power supply supplies power to the motor and the steering engine through the motor and the steering engine voltage stabilizing chip respectively, the isolated CAN module chip is used for CAN communication with the control chip, the motor driving chip is used for driving a direct current motor, an output shaft of the direct current motor is connected with a brake cable, the direct current motor is used for tensioning the brake cable of the bicycle to realize control of the speed of the bicycle, the ultrasonic sensor module is used for collecting distance information of obstacles in front of the bicycle, the ultrasonic module is connected with the output shaft of the steering engine through an ultrasonic bracket, and the steering engine is used for driving a, the steering engine pass through the steering engine support and install the anterior position at the bicycle, hall sensor module be used for gathering the real-time speed and the acceleration information of bicycle rear wheel, hall sensor module pass through the installing support and install the rear portion position at the bicycle.

Further, the main control chip adopts STM32F407ZET 6.

Further, the motor driving chip adopts IRLR7843 TRBF.

Further, LM2941 is adopted by the motor and the steering engine voltage stabilizing chip.

Furthermore, the direct current motor is connected with a bicycle brake cable through a sleeve, and the bicycle brake cable penetrates through a sleeve hole in the sleeve.

Furthermore, the integrated circuit board further comprises a steering engine interface, a motor interface, a sensor interface and a power interface, wherein the steering engine interface is used for being connected with a steering engine, the motor interface is connected with a direct current motor, the sensor interface is respectively connected with an ultrasonic sensor module and a Hall sensor module, and the power interface is connected with a 7.2V battery power supply.

Furthermore, integrated circuit board still includes the power switch subassembly, realizes the control to steering wheel, direct current motor and main control chip power on-off respectively.

Further, still be equipped with external interface on the integrated circuit board for carry out CAN communication, convenient follow-up right through keeping apart CAN module chip with other control chip the utility model discloses a function expands.

By adopting the technical scheme, the beneficial effects of the utility model are that: the utility model has the advantages that the power supply is separately controlled by a plurality of switch groups, so that the stability of the operation of the integrated circuit board is ensured; the integrated circuit board is also provided with an external interface which is used as a redundant design and CAN carry out CAN communication with other control chips, thereby being beneficial to the improvement of function expansion and compatibility; the utility model discloses a to the collection, processing, the judgement of road surface obstacle information and the speed of a motor vehicle information in bicycle the place ahead, come to control the speed of traveling of bicycle, the emergence of reducible incident is favorable to improving the security that the bicycle traveled.

Drawings

Fig. 1 is a schematic diagram of an integrated circuit board of the present invention;

FIG. 2 is a schematic view of the motor of the present invention;

fig. 3 is a schematic diagram of the circuit connection of the present invention.

Description of the labeling: 1-motor driving chip, 2-isolated CAN module chip, 3-motor interface, 4-motor and steering engine voltage stabilizing chip, 5-power interface, 6-main control chip, 7-power switch component, 8-sensor interface, 9-voltage stabilizing power chip, 10-steering engine interface, 11-external interface, 12-sleeve, 13-sleeve hole, 14-direct current motor, 15-motor positive and negative electrodes.

Detailed Description

Referring to fig. 1 or 2, an automatic speed control device for a bicycle includes an integrated circuit board, a dc motor, a steering engine, a hall sensor module, an ultrasonic sensor module, and a 7.2V battery power supply; the integrated circuit board comprises a main control chip 6, an isolated CAN module chip 2, a motor and steering engine voltage stabilizing chip 4 and a motor driving chip 1, and is used for executing an algorithm of automatic bicycle speed control; the battery power supply supplies power for the main control chip 6 through the voltage-stabilizing power supply chip 9, the battery power supply supplies power for the direct current motor 14 and the steering engine respectively through the motor and the steering engine voltage-stabilizing chip 4, the motor driving chip 1 is used for driving the direct current motor 14, and the isolation CAN module chip 2 is used for carrying out CAN communication with other control chips.

The main control chip 6 adopts STM32F407ZET6, the motor driving chip 1 adopts IRLR7843TRBF, the direct current motor 14 and the steering engine voltage stabilizing chip 4 adopt LM2941, the integrated circuit board further comprises a steering engine interface 10, a motor interface 3, a sensor interface 8 and a battery power supply interface 5, the steering engine interface 10 is used for being connected with a steering engine, the motor interface 3 is connected with the direct current motor 14, the sensor interface 8 is respectively connected with an ultrasonic sensor module and a Hall sensor module, the power supply interface 5 is connected with a 7.2V battery power supply, the integrated circuit board further comprises a power switch assembly 7 for respectively realizing the control of power on and power off of the steering engine, the direct current motor 14 and the main control chip 6, the voltage stabilizing power supply chip 9 is used for stabilizing the 7.2V battery power supply into 3.3V to supply power to the main control chip 6, and an external interface 11 is further arranged on the integrated circuit board, be used for carrying out CAN communication, convenient follow-up right through keeping apart CAN module chip 2 with other control chip the utility model discloses a function expands.

The ultrasonic module is connected with a steering engine output shaft through an ultrasonic support, the steering engine is used for driving a probe of the ultrasonic sensor to swing back and forth, the steering engine is installed at the front part of the bicycle through the steering engine support, the ultrasonic sensor is connected with the integrated circuit board through a sensor interface 8, and the ultrasonic sensor module is used for collecting distance information of obstacles in front of the bicycle and sensing the obstacles in front of the bicycle. The Hall sensor module is installed at the rear part of the bicycle through the installation support, the Hall sensor is connected with the integrated circuit board through the sensor interface 8, and the Hall sensor module is used for collecting real-time speed and acceleration information of the rear wheel of the bicycle.

As shown in fig. 2, the output shaft of the dc motor 14 is connected to the central hole of the sleeve 12, and the brake cable passes through the sleeve hole 13 of the sleeve 12, so that the rotation of the output shaft of the dc motor 14 can drive the sleeve 12 to rotate, the brake cable is tensioned, and the control of the running speed of the bicycle is realized.

As shown in fig. 3, after the main control chip 6 obtains the sensor data of the sensor module, the distance information of the obstacle on the bicycle road surface is calculated after the data is subjected to certain filtering processing, the safety of the running state of the whole bicycle is judged according to the speed and acceleration information collected by the hall sensor, if the distance of the obstacle is smaller than the safety distance, the control device sends an instruction to control the direct current motor 14 to rotate, so that the brake cable is in a tensioning state, the bicycle is decelerated, and if the speed and the acceleration are smaller than the set speed threshold, the direct current motor 14 stops rotating and returns to the initial position, and at this time, the brake cable is in a loosening state. If the distance of the obstacle is larger than the safe distance or no obstacle, the direct current motor 14 is in the initial position and the brake cable is in a slack state. According to the distance information of the obstacles collected by the ultrasonic sensor and the speed information collected by the Hall sensor, which are used as the basis for judgment, the integrated circuit board makes the judgment and sends out an instruction to control the direct current motor 14 to rotate, thereby achieving the purpose of automatically controlling the running speed of the bicycle and being beneficial to the safe running of the bicycle.

Of course, the above is only the preferred embodiment of the present invention, and the application range of the present invention is not limited thereto, so all the equivalent changes made in the principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a controlling means of automatic accuse speed of bicycle which characterized in that: the device comprises an integrated circuit board, a direct current motor (14), a steering engine, a Hall sensor module, an ultrasonic sensor module, a motor driving chip (1) and a 7.2V battery power supply; the integrated circuit board comprises a main control chip (6), an isolated CAN module chip (2), a motor, a steering engine voltage stabilizing chip (4) and a motor driving chip (1), the integrated circuit board is used for executing an algorithm of automatic control of the speed of the bicycle, a battery power supply supplies power to the main control chip (6) through a voltage stabilizing power supply chip (9), the voltage stabilizing power supply chip (9) is used for stabilizing a 7.2V battery power supply to 3.3V to supply power to the main control chip (6), the battery power supply supplies power to the motor and the steering engine through the motor and the steering engine voltage stabilizing chip (4) respectively, the isolated CAN module chip (2) is used for carrying out CAN communication with the control chip, the motor driving chip (1) is used for driving a direct current motor (14), an output shaft of the direct current motor (14) is connected with a brake cable, and the direct current motor (14) is used for tensioning the brake cable of the bicycle, the ultrasonic sensor module is used for collecting distance information of obstacles in front of a bicycle, the ultrasonic sensor module is connected with a steering engine output shaft through an ultrasonic support, a probe of the steering engine is used for driving the ultrasonic sensor to swing back and forth, the steering engine is installed at the front position of the bicycle through the steering engine support, the Hall sensor module is used for collecting real-time speed and acceleration information of a rear wheel of the bicycle, and the Hall sensor module is installed at the rear position of the bicycle through an installing support.

2. An automatic speed control device for a bicycle according to claim 1, wherein: the main control chip (6) adopts STM32F407ZET 6.

3. An automatic speed control device for a bicycle according to claim 1, wherein: the motor driving chip (1) adopts IRLR7843 TRBF.

4. The control device for automatically controlling the speed of a bicycle according to claim 1, wherein: the motor and the steering engine voltage stabilization chip (4) adopt LM 2941.

5. An automatic speed control device for a bicycle according to claim 1, wherein: the direct current motor (14) is connected with a bicycle brake cable through a sleeve (12), and the bicycle brake cable penetrates through a sleeve hole (13) in the sleeve (12).

6. An automatic speed control device for a bicycle according to claim 1, wherein: the integrated circuit board further comprises a steering engine interface (10), a motor interface (3), a sensor interface (8) and a power supply interface (5), wherein the steering engine interface (10) is used for being connected with a steering engine, the motor interface (3) is connected with a direct current motor (14), the sensor interface (8) is respectively connected with an ultrasonic sensor module and a Hall sensor module, and the power supply interface (5) is connected with a 7.2V battery power supply.

7. An automatic speed control device for a bicycle according to claim 1, wherein: the integrated circuit board further comprises a power switch assembly (7) which respectively controls the power on and off of the steering engine, the direct current motor (14) and the main control chip (6).

8. The control device for automatically controlling the speed of a bicycle according to claim 1, wherein: and the integrated circuit board is also provided with an external interface (11) for CAN communication with the control chip through the isolated CAN module chip (2).