In fl uence of Communication Delay between the Master and Slave Control Locomotives on Longitudinal Impulse of 20 000 t Heavy-haul Train
Focus on the communication delay between the master and slave control locomotive, a detailed longitudinal dynamic simulation model considering the communication delay was established based on the multi-body dynamics theory. The influence of communication delay on longitudinal impulse of train during...
Saved in:
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Electric Drive for Locomotives
2021-03-01
|
| Series: | 机车电传动 |
| Subjects: | |
| Online Access: | http://edl.csrzic.com/thesisDetails#10.13890/j.issn.1000-128x.2021.02.002 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Focus on the communication delay between the master and slave control locomotive, a detailed longitudinal dynamic simulation model considering the communication delay was established based on the multi-body dynamics theory. The influence of communication delay on longitudinal impulse of train during cycle braking on 12‰ heavy and long descending grade was simulated. Furthermore, the analysis of influence of communication delay on longitudinal impulse under different dynamic braking forces were completed. The simulation results indicated that both the longitudinal tractive force and pressing force increased with the increase of the communication delay, and the position of the maximum pressing force moved towards the train tail as the delay increased. Moreover, the communication delay had a significant effect on the negative acceleration of the vehicles. For the slave control locomotive, the negative accelerations increased with the increase of delays. For the other vehicles, the change of the delays would cause the fluctuation of negative accelerations. Furthermore, the effects of communication delay on longitudinal impulse were in coincide under different dynamic braking forces in air brake process. In air brake release process, the smaller the dynamic braking force was applied, the more significant effect of communication delay on longitudinal impulse exhibits. |
|---|---|
| ISSN: | 1000-128X |