AŽD Praha s.r.o. CRV&AVV ATO system used on vehicles of Czech Railways Dr.Ing. Ivo Myslivec AŽD Praha, Plant Technics, R&D WG1

ATO AVV presentation 09/20092 ATO today New class 471 EMUs were designed with ASR+ATB+ESD implemented as a inherent part of control system (Please wait for animated clip)

ATO AVV presentation 09/20093 ATO today New class 471 EMUs were designed with ASR+ATB+ESD implemented as a inherent part of control system How does ATO work…?

ATO AVV presentation 09/20094 ATO today New class 471 EMUs were designed with ASR+ATB+ESD implemented as a inherent part of control system How does ATO work…? What does it need…?

ATO AVV presentation 09/20095 ATO today After switching ATO on, following train data must be entered: (Please wait for animated clip)

ATO AVV presentation 09/20096 ATO today After switching ATO on, following train data must be entered : Train number

ATO AVV presentation 09/20097 ATO today After switching ATO on, following train data must be entered : Train number Braking ratio

ATO AVV presentation 09/20098 ATO today After switching ATO on, following train data must be entered : Train number Braking ratio Train length

ATO AVV presentation 09/20099 ATO today After switching ATO on, following train data must be entered: Train number Braking ratio Train length Initial speed

ATO AVV presentation 09/ ATO today After switching ATO on, following train data must be entered: Train number Braking ratio Train length Initial speed ATO now needs to orientate on the line

ATO AVV presentation 09/ ATO today For ATO positioning, magnetic balises type MIB-6 are used on SŽDC network: In future, ETCS balises will be used instead

ATO AVV presentation 09/ ATO today All necessary static informations are stored in Route Map: Track speed limits

ATO AVV presentation 09/ ATO today All necessary static informations are stored in route map: Track speed limits Signal positions Photo © Jan Mitlöhner

ATO AVV presentation 09/ ATO today All necessary static informations are stored in route map: Track speed limits Signal positions Platforms

ATO AVV presentation 09/ ATO today All necessary static informations are stored in route map: Track speed limits Signal positions Platforms Gradients Photo © Julius Janeba

ATO AVV presentation 09/ Target braking What is driving with ATO like…? (Please wait for animated clip)

ATO AVV presentation 09/ Target braking After closing the door driver pushes the Master Controller ahead…

ATO AVV presentation 09/ Target braking …and holds it until the speed reaches 3 km/h.

ATO AVV presentation 09/ Target braking Train driving is now controlled fully automatically.

ATO AVV presentation 09/ Target braking Driver may check the ATO activity on the display (details see later).

ATO AVV presentation 09/ Target braking Two horizontal bars above indicate required and real speed.

ATO AVV presentation 09/ Target braking Below them, the area for target parameters is reserved.

ATO AVV presentation 09/ Target braking We can see, that the braking curve to platform will appear.

ATO AVV presentation 09/ Target braking This bar-like arrangement makes the comparison...

ATO AVV presentation 09/ Target braking …between braking curves and real speed very easy.

ATO AVV presentation 09/ Target braking Aside this area, the expected signal aspect is displayed.

ATO AVV presentation 09/ Target braking On track with line transmission, it is derived from received ATP code.

ATO AVV presentation 09/ Target braking Where is no line transmission, signal aspects are entered…

ATO AVV presentation 09/ Target braking …using the keyboard below…

ATO AVV presentation 09/ Target braking …which is used also for setting of required speed.

ATO AVV presentation 09/ Target braking The vertical bar on right side indicates Proportional Traction.

ATO AVV presentation 09/ Target braking As the real speed becomes equal the required one…

ATO AVV presentation 09/ Target braking …the Proportional Traction decreases to maintain the speed.

ATO AVV presentation 09/ Target braking Train is approaching the platform and the target braking begins.

ATO AVV presentation 09/ Target braking The required speed starts to decrease…

ATO AVV presentation 09/ Target braking …and the Proportional Traction grows to negative values.

ATO AVV presentation 09/ Target braking Concurrently, the pneumatic brake of trailer coaches is used…

ATO AVV presentation 09/ Target braking …because the dynamic brake alone is not capable to reach…

ATO AVV presentation 09/ Target braking …the required braking deceleration, which is 0.8 m/s 2.

ATO AVV presentation 09/ Target braking Behind the window, we may already see the platform lamps…

ATO AVV presentation 09/ Target braking …waiting passengers…

ATO AVV presentation 09/ Target braking …and the End-of-platform board, which is the target now.

ATO AVV presentation 09/ ATO today And now: how does the Energy Saving Device work…?

ATO AVV presentation 09/ Energy saving Drive with us from Český Brod to Klučov. Our train departs just in time. (Please wait for animated clip)

ATO AVV presentation 09/ Energy saving After departure, arrival time and name of next stop appears on display.

ATO AVV presentation 09/ Energy saving As it is autumn morning and rails may be wet…

ATO AVV presentation 09/ Energy saving …driver uses ATO´s feature for limiting of Proportional Traction (to 80%).

ATO AVV presentation 09/ Energy saving Triangle markers below V-real indicate the speed to reach the platform in time.

ATO AVV presentation 09/ Energy saving When real speed approaches the optimal one, coasting will be set automatically.

ATO AVV presentation 09/ Energy saving The real speed is now 95 km/h, which accords to kinetic energy of 30 kWh.

ATO AVV presentation 09/ Energy saving Without ESD, the train would accelerate to 120 km/h, which accords to 47 kWh.

ATO AVV presentation 09/ Energy saving Thus, 17 kWh has been saved, which means approximately 37% saving.

ATO AVV presentation 09/ Energy saving Meanwhile, see the parameters of three concurrent target braking processes:

ATO AVV presentation 09/ Energy saving to track speed restriction from 130 to 120 km/h,

ATO AVV presentation 09/ Energy saving to 3rd signal at STOP (expected signal sequence is Free –> Warning –> Stop),

ATO AVV presentation 09/ Energy saving and to platform in Klučov.

ATO AVV presentation 09/ Energy saving The train is still coasting without any traction power consumption.

ATO AVV presentation 09/ Energy saving The regenerative braking may return part of kinetic energy back to catenary…

ATO AVV presentation 09/ Energy saving …but on DC it crucially depends on other consumption in the area of substation.

ATO AVV presentation 09/ Energy saving If there is none, the rheostatic braking is used instead of regenerative.

ATO AVV presentation 09/ Energy saving Saying part of energy we mean not only the efficiency of regeneration…

ATO AVV presentation 09/ Energy saving …but also the fact that both electric and pneumatic brakes are applied.

ATO AVV presentation 09/ Energy saving Due to limited power of electric brake, the regenerable part depends on speed:

ATO AVV presentation 09/ Energy saving the greater is the initial speed, the less is the regenerable part.

ATO AVV presentation 09/ Energy saving That´s why this driving strategy is the best, independent of use of regeneration.

ATO AVV presentation 09/ Energy saving The train will stop now. Observe the arrival time, which should be 06:54:00…

ATO AVV presentation 09/ Energy saving Just in time…

ATO AVV presentation 09/ ATO average results We have seen only single stop-to-stop trip

ATO AVV presentation 09/ ATO average results We have seen only single stop-to-stop trip What are the average results along the whole line?

ATO AVV presentation 09/ ATO average results We have seen only single stop-to-stop trip What are the average results along the whole line? Relative running time Relative power consumption Shortest running time (100%; 100%)

ATO AVV presentation 09/ ATO average results And what is the comparison between computer and human driver...?

ATO AVV presentation 09/ ATO average results Whole mission delayed Whole mission on time

ATO AVV presentation 09/ ATO as executive system Why did not we design ATO as an advisory system? Driver need not pay any attention to follow any ATO´s instructions Braking process is easily predictable, as the executive system performs it by itself Thus, time accuracy is better, making the ATO more credible for driver

ATO AVV presentation 09/ ATO in numbers In these days there are in regular operation with ASR+ATB+ESD: 50 double-decker suburban EMUs class 471 (next 10 in manufacturing) 250 km of equipped track 80 km of track should be newly equipped in year subway trains type 81-71M with derived ATO (Prague, line A, 12 km)

ATO AVV presentation 09/ Project 380

ATO AVV presentation 09/ Project 380

ATO AVV presentation 09/ The end Thank You for Your attention.