Design and implementation of locomotive braking system based on intelligent PWM

Introduction

With the fast advancement of present day railroad transportation, the security and unwavering quality prerequisites for train braking frameworks are expanding. Conventional braking control strategies can now not meet wants of cutting edge train braking frameworks for tall accuracy, tall reaction speed, and cleverly control. Subsequently, the plan of a train braking control unit based on shrewdly Beat Width Tweak (PWM) control has ended up a hot point of current inquire about. This paper will detail how to execute a train braking control unit based on shrewdly PWM control from the viewpoints of plan standards, equipment execution, program programming, and cleverly control procedures.

Hardware Implementation

Main Control Chip Selection

The most control chip of the locomotive braking control unit should have characteristics such as tall execution, moo control utilization, and tall unwavering quality. As of now, commonly utilized fundamental control chips on the market incorporate DSP, FPGA, and ARM. When selecting the most control chip, it is essential to comprehensively consider its computing control, memory estimate, number and sort of interfacing, and other components to meet the useful necessities of the braking control unit.

PWM Signal Generator Design

The PWM flag generator is the center component of the train braking control unit, utilized to produce PWM signals to drive the braking actuator. Amid the plan, it is essential to guarantee that the PWM flag generator can deliver steady and exact PWM signals with movable obligation cycle and recurrence. Also, the anti-interference capability and electromagnetic compatibility of the PWM flag generator ought to be considered.

Sensor Interface Design

To see the running status of the train and outside natural data in real-time, the braking control unit has to interface to different sensors, such as speed sensors, weight sensors, temperature sensors, etc. Subsequently, within the equipment plan, it is vital to plan the comparing sensor interface circuits to guarantee that sensor signals can be precisely and dependably transmitted to the most control chip.

Brake Actuator Interface Design

The brake actuator is the execution component of the train braking framework, mindful for applying braking drive to the wheels. Within the equipment plan, it is fundamental to plan the brake actuator interface circuit to attain exact control of the brake actuator by the most control chip. Moreover, the security, unwavering quality, and solidness of the interface circuit ought to be considered.

Software Programming

Main Control Program Design

The most control program is the center computer program of the train braking control unit, mindful for planning the work of different modules and realizing the braking control work. Amid programming, it is essential to receive a measured plan approach, isolating the braking control work into numerous free modules, such as PWM flag era module, sensor information preparing module, brake actuator control module, etc. Moreover, sensible communication conventions and data handling calculations ought to be outlined to guarantee proficient and exact data trade and information handling between modules.

Intelligent Control Algorithm Implementation

The shrewdly control calculation is the key to accomplishing brilliantly control of the train braking framework. Amid programming, it is fundamental to select suitable brilliantly control calculations, such as fluffy control, neural arrange control, hereditary calculations, etc., and optimize and move forward the calculations based on the characteristics of the train braking framework. By seeing the running status of the train and outside natural data in real-time, the cleverly control calculation can powerfully alter the obligation cycle and recurrence of the PWM flag to attain shrewdly control of the braking drive.

Brilliantly Control Techniques

Braking Force Prediction and Compensation

To attain exact control of the braking constrain, it is fundamental to receive braking drive expectation and emolument methodologies. By seeing the running status of the train and external environmental data in real-time, the specified braking drive for the following period is anticipated, and the obligation cycle and recurrence of the PWM flag are balanced in progress to compensate for the alter in braking constrain.

Fault Identification and Resilience Management

The train braking framework may be a complex framework which will experience different flaws amid operation. Therefore, it is essential to plan blame conclusion and resilience taking care of instruments within the shrewdly control methodologies. By observing the working status and information transmission of different modules in real-time, potential blame sources can be identified and analyzed in time, and comparing fault-tolerant measures can be taken to guarantee the typical operation of the braking framework.

Design Principles

PWM control may be a strategy of advanced representation of analog control signals by balancing the width of a arrangement of beats to attain comparable control of analog signals. Within the train braking control unit, PWM control is utilized to alter the braking constrain, accomplishing exact control of the braking handle. Shrewdly PWM control combines conventional PWM control innovation with cutting edge shrewdly control calculations, powerfully altering the obligation cycle of the PWM flag by seeing the running status of the train and outside natural data in real-time, subsequently accomplishing cleverly control of the braking drive.

Conclusion

The plan of a train braking control unit based on brilliantly PWM control is an imperative investigate heading within the field of cutting edge railroad transportation. By sensibly planning equipment circuits and computer program programs and embracing progressed brilliantly control methodologies, exact, productive, and cleverly control of the train braking system can be accomplished. Within the future, with nonstop innovative headways and growing application scenarios, the train braking control unit based on brilliantly PWM control will have broader application prospects and improvement space.