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 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 09/2009
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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 09/2009
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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 09/2009
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ATO today
 After switching ATO on, following
train data must be entered:
(Please wait for animated clip)
ATO AVV presentation 09/2009
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ATO today
 After switching ATO on, following
train data must be entered :
 Train number
ATO AVV presentation 09/2009
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ATO today
 After switching ATO on, following
train data must be entered :
 Train number
 Braking ratio
ATO AVV presentation 09/2009
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ATO today
 After switching ATO on, following
train data must be entered :
 Train number
 Braking ratio
 Train length
ATO AVV presentation 09/2009
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ATO today
 After switching ATO on, following
train data must be entered:




Train number
Braking ratio
Train length
Initial speed
ATO AVV presentation 09/2009
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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 09/2009
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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 09/2009
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ATO today
 All necessary static informations are
stored in Route Map:
 Track speed
limits
ATO AVV presentation 09/2009
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ATO today
 Track speed
limits
 Signal
positions
ATO AVV presentation 09/2009
Photo © Jan Mitlöhner
 All necessary static informations are
stored in route map:
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ATO today
 All necessary static informations are
stored in route map:
 Track speed
limits
 Signal
positions
 Platforms
ATO AVV presentation 09/2009
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ATO today
 Track speed
limits
 Signal
positions
 Platforms
 Gradients
ATO AVV presentation 09/2009
Photo © Julius Janeba
 All necessary static informations are
stored in route map:
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Target braking
What is driving with ATO like…?
(Please wait for animated clip)
ATO AVV presentation 09/2009
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Target braking
After closing the door driver pushes
the Master
Controller
ATO AVV presentation
09/2009 ahead…
17
Target braking
…and holds it until the speed
reaches
3 presentation
km/h. 09/2009
ATO AVV
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Target braking
Train driving is now controlled fully
automatically.
ATO AVV presentation 09/2009
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Target braking
Driver may check the ATO activity
on the
(details
see later).
ATOdisplay
AVV presentation
09/2009
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Target braking
Two horizontal bars above indicate
required
and
real09/2009
speed.
ATO AVV
presentation
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Target braking
Below them, the area for target
parameters
is reserved.
ATO AVV presentation
09/2009
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Target braking
We can see, that the braking curve
to platform
will appear.
ATO AVV presentation
09/2009
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Target braking
This bar-like arrangement makes
the comparison...
ATO AVV presentation 09/2009
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Target braking
…between braking curves and real
speedATOvery
easy.09/2009
AVV presentation
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Target braking
Aside this area, the expected
signalATOaspect
is displayed.
AVV presentation
09/2009
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Target braking
On track with line transmission, it is
derived
from
received
ATP code. 27
ATO AVV
presentation
09/2009
Target braking
Where is no line transmission,
signalATOaspects
are
entered…
AVV presentation
09/2009
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Target braking
…using the keyboard below…
ATO AVV presentation 09/2009
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Target braking
…which is used also for setting of
required
speed.
ATO AVV
presentation 09/2009
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Target braking
The vertical bar on right side
indicates
ATO AVVProportional
presentation 09/2009 Traction.
31
Target braking
As the real speed becomes equal
the required
one…
ATO AVV presentation
09/2009
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Target braking
…the Proportional Traction
decreases
to maintain
the speed.
ATO AVV presentation
09/2009
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Target braking
Train is approaching the platform
and the
target
braking
begins.
ATO AVV
presentation
09/2009
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Target braking
The required speed starts to
decrease…
ATO AVV presentation 09/2009
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Target braking
…and the Proportional Traction
growsATOto
values.
AVVnegative
presentation 09/2009
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Target braking
Concurrently, the pneumatic brake
of trailer
is used…
ATO AVVcoaches
presentation 09/2009
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Target braking
…because the dynamic brake alone
is notATO
capable
to 09/2009
reach…
AVV presentation
38
Target braking
…the required braking
2.
deceleration,
which
is
0.8
m/s
ATO AVV presentation 09/2009
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Target braking
Behind the window, we may
already
see
the platform
lamps…
ATO AVV
presentation
09/2009
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Target braking
…waiting passengers…
ATO AVV presentation 09/2009
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Target braking
…and the End-of-platform board,
whichATOisAVVthe
target
now.
presentation
09/2009
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ATO today
And now: how does the Energy
Saving Device work…?
ATO AVV presentation 09/2009
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Energy saving
Drive with us from Český Brod to Klučov. Our
train departs
in time. (Please
wait for animated clip)
ATO just
AVV presentation
09/2009
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Energy saving
After departure, arrival time and name of
next stopATO
appears
on display.
AVV presentation
09/2009
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Energy saving
As it is autumn morning and rails may be
wet…
ATO AVV presentation 09/2009
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Energy saving
…driver uses ATO´s feature for limiting of
Proportional
Traction
80%).
ATO AVV
presentation(to
09/2009
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Energy saving
Triangle markers below V-real indicate
the speedATOtoAVVreach
the09/2009
platform in time.
presentation
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Energy saving
When real speed approaches the optimal
one, coasting
be set
automatically.
ATO AVV will
presentation
09/2009
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Energy saving
The real speed is now 95 km/h, which
accords to
energy
of 30 kWh.
ATOkinetic
AVV presentation
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Energy saving
Without ESD, the train would accelerate
to 120 km/h,
accords
ATO AVVwhich
presentation
09/2009 to 47 kWh.
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Energy saving
Thus, 17 kWh has been saved, which
means approximately
37% saving.
ATO AVV presentation 09/2009
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Energy saving
Meanwhile, see the parameters of three
concurrent
braking
processes:
ATO target
AVV presentation
09/2009
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Energy saving
to track speed restriction from 130 to
120 km/h,
ATO AVV presentation 09/2009
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Energy saving
to 3rd signal at STOP (expected signal
sequenceATO
isAVV
Free
–> Warning
–> Stop),
presentation
09/2009
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Energy saving
and to platform in Klučov.
ATO AVV presentation 09/2009
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Energy saving
The train is still coasting without any
traction power
consumption.
ATO AVV presentation
09/2009
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Energy saving
The regenerative braking may return part
of kineticATO
energy
back09/2009
to catenary…
AVV presentation
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Energy saving
…but on DC it crucially depends on other
consumption
the area
of substation.
ATO AVVin
presentation
09/2009
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Energy saving
If there is none, the rheostatic braking is
used instead
ofpresentation
regenerative.
ATO AVV
09/2009
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Energy saving
Saying „part of energy“ we mean not
only the efficiency
of regeneration…
ATO AVV presentation
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Energy saving
…but also the fact that both electric and
pneumatic
are 09/2009
applied.
ATObrakes
AVV presentation
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Energy saving
Due to limited power of electric brake,
the regenerable
part depends
on speed:
ATO AVV presentation
09/2009
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Energy saving
the greater is the initial speed,
the less is
regenerable
ATOthe
AVV presentation
09/2009 part.
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Energy saving
That´s why this driving strategy is the
best, independent
of use
of regeneration.
ATO AVV presentation
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Energy saving
The train will stop now. Observe the
arrival time,
which
should
ATO AVV
presentation
09/2009be 06:54:00…
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Energy saving
Just in time…
ATO AVV presentation 09/2009
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ATO average results
 We have seen
only single
stop-to-stop
trip
ATO AVV presentation 09/2009
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ATO average results
 We have seen
only single
stop-to-stop
trip
 What are the
average
results along
the whole
line?
ATO AVV presentation 09/2009
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ATO average results
Relative power consumption
 We have seen
only single
stop-to-stop
trip
 What are the
average
results along
the whole
line?
Shortest running time
(100%; 100%)
Relative running time
ATO AVV presentation 09/2009
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ATO average results
 And what is the comparison
between computer and human
driver...?
ATO AVV presentation 09/2009
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ATO average results
Whole mission
delayed
Whole mission
on time
ATO AVV presentation 09/2009
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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 09/2009
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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)
ATO AVV presentation 09/2009
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Project 380
ATO AVV presentation 09/2009
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Project 380
ATO AVV presentation 09/2009
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The end
Thank You for Your attention.
[email protected]
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