CN114852024B

CN114852024B - Electric control braking balance rod adjusting device for racing car

Info

Publication number: CN114852024B
Application number: CN202210625157.8A
Authority: CN
Inventors: 陈天一; 王硕; 张瀚祺
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-02
Filing date: 2022-06-02
Publication date: 2023-05-23
Anticipated expiration: 2042-06-02
Also published as: CN114852024A

Abstract

The invention relates to the technical field of racing car balance rod adjustment, and discloses a racing car electric control brake balance rod adjustment device, wherein a bracket hinged support is rotationally connected below a motor bracket, a stepping motor is fixedly connected above the motor bracket, a driving gear is fixedly connected on the outer side wall of an output shaft of the stepping motor, a brake balance rod is installed in the motor bracket, a driven gear is connected on the right side of the outer side wall of the brake balance rod in a threaded manner, and the driven gear is in meshed connection with the driving gear; compared with the traditional manual adjustment mode, the system greatly simplifies the operation of adjusting the brake balance rod. Meanwhile, the system enables the adjusting precision to be higher through the characteristics of the singlechip and the driver so as to control the stepping motor, and the braking performance of the racing car is improved to a certain extent.

Description

Electric control braking balance rod adjusting device for racing car

Technical Field

The invention relates to the technical field of racing car balance rod adjustment, in particular to an electric control braking balance rod adjustment device for a racing car.

Background

The brake balance bar is used as an important mode for adjusting the braking force distribution of front and rear wheels of the racing car, and a manual adjustment mode is adopted for many years, but has some problems, and the main problems are as follows:

the brake balance bar is generally arranged in the front cabin of the racing car, and needs to be manually adjusted in a narrow space by a person during adjustment, so that the operation is very inconvenient and laborious under the condition. In addition, the manual adjustment of the person easily generates larger errors, and the influence on the braking performance of the racing car in the high-speed braking performance test project is very large, so that the design of the electric control braking balance rod adjusting device of the racing car is needed.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the invention provides an electric control braking balance rod adjusting device for a racing car, which solves the problems of inconvenient and laborious operation and easy generation of larger errors.

(II) technical scheme

In order to achieve the above purpose, the present invention provides the following technical solutions: an electric control braking balance bar adjusting device of a racing car comprises a braking balance bar, a motor bracket, a bracket hinged support, a driven gear, a driving gear, a stepping motor, a singlechip, a driver and a 4 multiplied by 4 matrix keyboard;

the lower part of the motor support is rotationally connected with the support hinge support, the upper part of the motor support is fixedly connected with the stepping motor, the outer side wall of an output shaft of the stepping motor is fixedly connected with the driving gear, the brake balance rod is arranged in the motor support, the right side of the outer side wall of the brake balance rod is in threaded connection with the driven gear, the driven gear is in meshed connection with the driving gear, and the model of the singlechip is STM32;

the ROL3-ROL0 pins of the 4X 4 matrix keyboard are sequentially connected with the PD0-PD3 pins of the singlechip, and the COL0-COL3 pins of the 4X 4 matrix keyboard are sequentially connected with the PD4-PD7 pins of the singlechip for setting a brake distribution ratio; the key function is set to be 0-9 decimal point, deleting, and determining that the required braking force distribution ratio can be input into the singlechip through the 4X 4 matrix keyboard;

the PE6 pin of the singlechip is connected with the ENA+ pin of the driver and is used for transmitting an enabling signal of the stepping motor;

the PE5 pin of the singlechip is connected with the DIR+ pin of the driver and is used for transmitting a direction signal;

the PC7 pin of the singlechip is connected with the PUL+ pin of the driver and is used for transmitting an angular displacement signal;

the GND pin of the singlechip is respectively connected with the ENA-, DIR-and PUL-pins of the driver, the driver is connected with the development board by adopting a common cathode connection method, the singlechip takes the braking force distribution ratio input by a 4X 4 matrix keyboard as the basis to obtain the direction and the angle of the stepping motor which need to rotate, a direction signal is transmitted from the PE5 pin of the singlechip to the DIR+ pin of the driver, and an angular displacement signal is transmitted from the PC7 pin of the singlechip to the PUL+ pin of the driver;

the pins A+, A-, B+ and B-of the driver are respectively connected with the pin A, C, B, D of the stepper motor and used for transmitting current, and the driver controls the rotation direction and angle of the stepper motor according to the direction and angle signals sent by the singlechip.

Preferably, a pedal bracket is integrally formed at the rear of the motor bracket.

Preferably, the number of the bracket hinge supports is two, a threaded hole is formed in the lower surface of each bracket hinge support, and the bracket hinge supports are fixed on the frame.

(III) beneficial effects

The invention provides an electric control braking balance rod adjusting device of a racing car, which has the following beneficial effects:

(1) Compared with the traditional manual adjustment mode, the system greatly simplifies the operation of adjusting the brake balance rod. Meanwhile, the system enables the adjusting precision to be higher through the characteristics of the singlechip and the driver so as to control the stepping motor, and the braking performance of the racing car is improved to a certain extent.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a simplified operational diagram of the present invention;

FIG. 3 is a circuit diagram of a driver and a singlechip according to the present invention;

FIG. 4 is a diagram showing the connection of pins of a matrix keyboard according to the present invention.

In the figure: 1. a brake balance bar; 2. a motor bracket; 3. a bracket hinged support; 4. a driven gear; 5. a drive gear; 6. a stepping motor; 7. a single chip microcomputer; 8. a driver; 9. a 4 x 4 matrix keyboard.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

As shown in fig. 1-4, the present invention provides a technical solution: an electric control braking balance bar adjusting device of a racing car comprises a braking balance bar 1, a motor bracket 2, a bracket hinged support 3, a driven gear 4, a driving gear 5, a stepping motor 6, a singlechip 7, a driver 8 and a 4 multiplied by 4 matrix keyboard 9;

the lower part of the motor bracket 2 is rotationally connected with a bracket hinge support 3, the upper part of the motor bracket 2 is fixedly connected with a stepping motor 6, the outer side wall of an output shaft of the stepping motor 6 is fixedly connected with a driving gear 5, a brake balance rod 1 is arranged in the motor bracket 2, the right side of the outer side wall of the brake balance rod 1 is in threaded connection with a driven gear 4, and the driven gear 4 is in meshed connection with the driving gear 5;

ROL3-ROL0 pins of the 4X 4 matrix keyboard 9 are sequentially connected with PD0-PD3 pins of the singlechip 7, and COL0-COL3 pins of the 4X 4 matrix keyboard 9 are sequentially connected with PD4-PD7 pins of the singlechip 7; setting a brake distribution ratio; wherein, the key function is set to be the number 0-9, decimal point, delete, confirm, can be with the required braking force distribution ratio input to STM32 singlechip through 4X 4 matrix keyboard 9.

The PE6 pin of the singlechip 7 is connected with the ENA+ pin of the driver 8 and is used for transmitting an enabling signal of the stepping motor 6; the PE5 pin of the singlechip 7 is connected with the DIR+ pin of the driver 8 and is used for transmitting a direction signal; the PC7 pin of the singlechip 7 is connected with the PUL+ pin of the driver 8 and is used for transmitting an angular displacement signal; the GND pin of the singlechip 7 is respectively connected with the ENA-, DIR-and PUL-pins of the driver 8, the driver 8 is connected with the development board by adopting a common cathode connection method, the STM32 singlechip is used for obtaining the direction and the angle of the rotation required by the stepping motor 6 according to the braking force distribution ratio input by the 4X 4 matrix keyboard 9, a direction signal is transmitted from the PE5 pin of the STM32 singlechip to the DIR+ pin of the driver 8, and an angular displacement signal is transmitted from the PC7 pin of the STM32 singlechip to the PUL+ pin of the driver 8;

the a+, a-, b+, B-pins of the driver 8 are connected to the A, C, B, D pins of the stepper motor 6, respectively, (series connection of motor windings) for transmitting current. The driver controls the rotation direction and angle of the stepping motor according to the direction and angle signals sent by the STM32 singlechip.

Further, the pedal bracket is integrally formed at the rear of the motor bracket 2, so that the motions of all parts do not collide when the pedal is stepped on.

Further, the number of the bracket hinge supports 3 is two, the lower surface of each bracket hinge support 3 is provided with a threaded hole, and the bracket hinge supports 3 are fixed on the frame.

Further, the model of the singlechip 7 is STM32, the singlechip 7 controls the stepping motor 6 to generate torque, and the torque transmission path is the output shaft of the stepping motor 6, the driving gear 5, the driven gear 4 and the braking balance rod 1, so that the purpose of adjusting the braking balance rod 1 is achieved.

To sum up, the workflow of the invention: the 4X 4 matrix keyboard arranged on the front panel of the racing car is connected with the STM32 singlechip, the singlechip calculates the direction and the angle of the rotation of the stepping motor 6 and sends the direction and the angle to the driver 8, the driver 8 adjusts the working state of the stepping motor 6 according to the direction and the angle, and torque is transmitted to the braking balance rod 1 through the gear set, so that the accurate distribution of braking force of front wheels and rear wheels of the racing car is conveniently realized.

Compared with the traditional mode of manually adjusting the brake balance rod 1, the adjusting system has the advantages that the adjustment of the brake balance rod 1 of the racing car is simplified, the adjusting precision is improved to a certain extent, and the braking performance of the racing car is improved.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An automatically controlled braking balance bar adjusting device of cycle racing, its characterized in that: the device comprises a braking balance rod (1), a motor bracket (2), a bracket hinged support (3), a driven gear (4), a driving gear (5), a stepping motor (6), a singlechip (7), a driver (8) and a 4 multiplied by 4 matrix keyboard (9);

the motor is characterized in that the bracket hinged support (3) is rotationally connected to the lower part of the motor bracket (2), the stepping motor (6) is fixedly connected to the upper part of the motor bracket (2), the driving gear (5) is fixedly connected to the outer side wall of an output shaft of the stepping motor (6), the brake balance rod (1) is installed in the motor bracket (2), the driven gear (4) is connected to the right side of the outer side wall of the brake balance rod (1) through threads, the driven gear (4) is in meshed connection with the driving gear (5), and the model of the singlechip (7) is STM32;

ROL3-ROL0 pins of the 4X 4 matrix keyboard (9) are sequentially connected with PD0-PD3 pins of the singlechip (7), COL0-COL3 pins of the 4X 4 matrix keyboard (9) are sequentially connected with PD4-PD7 pins of the singlechip (7) and used for setting a brake distribution ratio; the key function is set to be 0-9 decimal point, deleting and determining that the required braking force distribution ratio can be input into the singlechip (7) through the 4X 4 matrix keyboard (9);

the PE6 pin of the singlechip (7) is connected with the ENA+ pin of the driver (8) and is used for transmitting an enabling signal of the stepping motor (6);

the PE5 pin of the singlechip (7) is connected with the DIR+ pin of the driver (8) and is used for transmitting a direction signal;

the PC7 pin of the singlechip (7) is connected with the PUL+ pin of the driver (8) and is used for transmitting an angular displacement signal;

the GND pin of the singlechip (7) is respectively connected with the ENA-, DIR-and PUL-pins of the driver (8), the driver (8) is connected with the development board by adopting a common cathode connection method, the singlechip (7) obtains the direction and the angle of the rotation required by the stepping motor (6) according to the braking force distribution ratio input by the 4X 4 matrix keyboard (9), a direction signal is transmitted from the PE5 pin of the singlechip (7) to the DIR+ pin of the driver (8), and an angular displacement signal is transmitted from the PC7 pin of the singlechip (7) to the PUL+ pin of the driver (8);

the A+, A-, B+ and B-pins of the driver (8) are respectively connected with the A, C, B, D pin of the stepping motor (6) and used for transmitting current, and the driver controls the rotation direction and angle of the stepping motor (6) according to the direction and angle signals sent by the singlechip (7).

2. The racing car electric control braking balance bar adjusting device according to claim 1, wherein: the rear of the motor bracket (2) is integrally provided with a pedal bracket.

3. The racing car electric control braking balance bar adjusting device according to claim 1, wherein: the two support hinge supports (3) are arranged, a threaded hole is formed in the lower surface of each support hinge support (3), and the support hinge supports (3) are fixed on the frame.