ATO AVV presentation 09/200916 Target braking What is driving with ATO like…? (Please wait for animated clip)
ATO AVV presentation 09/200917 Target braking After closing the door driver pushes the Master Controller ahead…
ATO AVV presentation 09/200918 Target braking …and holds it until the speed reaches 3 km/h.
ATO AVV presentation 09/200919 Target braking Train driving is now controlled fully automatically.
ATO AVV presentation 09/200920 Target braking Driver may check the ATO activity on the display (details see later).
ATO AVV presentation 09/200921 Target braking Two horizontal bars above indicate required and real speed.
ATO AVV presentation 09/200922 Target braking Below them, the area for target parameters is reserved.
ATO AVV presentation 09/200923 Target braking We can see, that the braking curve to platform will appear.
ATO AVV presentation 09/200924 Target braking This bar-like arrangement makes the comparison...
ATO AVV presentation 09/200925 Target braking …between braking curves and real speed very easy.
ATO AVV presentation 09/200926 Target braking Aside this area, the expected signal aspect is displayed.
ATO AVV presentation 09/200927 Target braking On track with line transmission, it is derived from received ATP code.
ATO AVV presentation 09/200928 Target braking Where is no line transmission, signal aspects are entered…
ATO AVV presentation 09/200929 Target braking …using the keyboard below…
ATO AVV presentation 09/200930 Target braking …which is used also for setting of required speed.
ATO AVV presentation 09/200931 Target braking The vertical bar on right side indicates Proportional Traction.
ATO AVV presentation 09/200932 Target braking As the real speed becomes equal the required one…
ATO AVV presentation 09/200933 Target braking …the Proportional Traction decreases to maintain the speed.
ATO AVV presentation 09/200934 Target braking Train is approaching the platform and the target braking begins.
ATO AVV presentation 09/200935 Target braking The required speed starts to decrease…
ATO AVV presentation 09/200936 Target braking …and the Proportional Traction grows to negative values.
ATO AVV presentation 09/200937 Target braking Concurrently, the pneumatic brake of trailer coaches is used…
ATO AVV presentation 09/200938 Target braking …because the dynamic brake alone is not capable to reach…
ATO AVV presentation 09/200939 Target braking …the required braking deceleration, which is 0.8 m/s 2.
ATO AVV presentation 09/200940 Target braking Behind the window, we may already see the platform lamps…
ATO AVV presentation 09/200941 Target braking …waiting passengers…
ATO AVV presentation 09/200942 Target braking …and the End-of-platform board, which is the target now.
ATO AVV presentation 09/200943 ATO today And now: how does the Energy Saving Device work…?
ATO AVV presentation 09/200944 Energy saving Drive with us from Český Brod to Klučov. Our train departs just in time. (Please wait for animated clip)
ATO AVV presentation 09/200945 Energy saving After departure, arrival time and name of next stop appears on display.
ATO AVV presentation 09/200946 Energy saving As it is autumn morning and rails may be wet…
ATO AVV presentation 09/200947 Energy saving …driver uses ATO´s feature for limiting of Proportional Traction (to 80%).
ATO AVV presentation 09/200948 Energy saving Triangle markers below V-real indicate the speed to reach the platform in time.
ATO AVV presentation 09/200949 Energy saving When real speed approaches the optimal one, coasting will be set automatically.
ATO AVV presentation 09/200950 Energy saving The real speed is now 95 km/h, which accords to kinetic energy of 30 kWh.
ATO AVV presentation 09/200951 Energy saving Without ESD, the train would accelerate to 120 km/h, which accords to 47 kWh.
ATO AVV presentation 09/200952 Energy saving Thus, 17 kWh has been saved, which means approximately 37% saving.
ATO AVV presentation 09/200953 Energy saving Meanwhile, see the parameters of three concurrent target braking processes:
ATO AVV presentation 09/200954 Energy saving to track speed restriction from 130 to 120 km/h,
ATO AVV presentation 09/200955 Energy saving to 3rd signal at STOP (expected signal sequence is Free –> Warning –> Stop),
ATO AVV presentation 09/200956 Energy saving and to platform in Klučov.
ATO AVV presentation 09/200957 Energy saving The train is still coasting without any traction power consumption.
ATO AVV presentation 09/200958 Energy saving The regenerative braking may return part of kinetic energy back to catenary…
ATO AVV presentation 09/200959 Energy saving …but on DC it crucially depends on other consumption in the area of substation.
ATO AVV presentation 09/200960 Energy saving If there is none, the rheostatic braking is used instead of regenerative.
ATO AVV presentation 09/200961 Energy saving Saying part of energy we mean not only the efficiency of regeneration…
ATO AVV presentation 09/200962 Energy saving …but also the fact that both electric and pneumatic brakes are applied.
ATO AVV presentation 09/200963 Energy saving Due to limited power of electric brake, the regenerable part depends on speed:
ATO AVV presentation 09/200964 Energy saving the greater is the initial speed, the less is the regenerable part.
ATO AVV presentation 09/200965 Energy saving That´s why this driving strategy is the best, independent of use of regeneration.
ATO AVV presentation 09/200966 Energy saving The train will stop now. Observe the arrival time, which should be 06:54:00…
ATO AVV presentation 09/200967 Energy saving Just in time…
ATO AVV presentation 09/200968 ATO average results We have seen only single stop-to-stop trip
ATO AVV presentation 09/200969 ATO average results We have seen only single stop-to-stop trip What are the average results along the whole line?
ATO AVV presentation 09/200970 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 09/200971 ATO average results And what is the comparison between computer and human driver...?
ATO AVV presentation 09/200972 ATO average results Whole mission delayed Whole mission on time
ATO AVV presentation 09/200973 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 09/200974 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 2009 28 subway trains type 81-71M with derived ATO (Prague, line A, 12 km)
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