Train Simulator Classic 2024

Train Simulator Classic 2024

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DTG LGV: Can someone explain KVB to me ?
Hi !

Driving towards Marseille TVM goes of and KVB shows me --- ---
Now the speed changes down to 110kmh and later to 60kmh but KVB just shows --- ---
i see no indication of these speed changes.

Can someone help me ?
Isnt KVB supposed to act and warn me of speed changes or show me the next maximum allowed speed ?
Ultima modifica da KajFlo; 28 mag 2016, ore 3:29
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Visualizzazione di 46-58 commenti su 58
Messaggio originale di KajFlo:
You seem to have missed that the question envolved pretty quickly from "how does KVB work" to "why are there distant speed signals showing clear although there is a upcoming speed change" ?

And no, nobody told me here "how it works". You especially posted incorrect information here regarding yellow signals. So the question still stands and needs to be discussed.


1st, I did not miss the question as I already explained to you but you simply won't accept it because that's not how you want it to work, wake up to the reality things are not made according to your own mind

2nd, there's 3 pages already of people telling you what to do and all you do is say how they, including a real driver, are wrong and you are absolutely right, and it happens that, it's the exact opposite

3rd I never posted wrong info here, here I'll tell you like if you are a 6 year old, SOLID LIGHT SIGNAL YELLOW means a 30 km/h restriction, KVB FLASHING ORANGE IN CAB, is a visual KVB warning which you must acknowledge or the emergency brakes will be applied, with that KVB light on, NEXT THERE IS A KVB AUDIO WARNING which you must acknowledge or emergency brakes apply, if you still don't understand how it works in train sim, then you are just in denial that it is you that does not know how it works or you're trolling all of us
Ultima modifica da darkage; 29 mag 2016, ore 9:44
Messaggio originale di KajFlo:
Well the wikipedia thing says:

"It checks and controls the speed of moving trains"

So thats what i was asking:
How does KVB work ?
How does it "control" the speed ?

It just shows --- ---

Also i dont believe that there is no indication of the speed changes on the real route.
The manual tells about speed signs, i just can see them.
And i tells about KVB but in a very abysmal way i dont understand it...


btw if you had read the wikipedia page with more attention you would read this "displays information about the state of the system. It does not replicate trackside signals for the driver (for example, the speed limits are not indicated). This is because the KVB is a train protection system, not a cab-signalling system."
@ KajFlo: here is what I understand of how KVB works in real life:


After the passing of the first marker (magnet) on the track activating the KVB system, or after passing the first signal marker if no KVB start marker is present, the KVB indicator will start displaying 3 yellow dashes and 3 green dashes [--- ---]. The KVB will be displaying theses dashes --- --- at passing each signal marker indicating an open block. This is valid for speeds below 160 km/h. At speed greater than 160 km/h, a [ -b-] (green b) will be displayed (see below for KVB indications at speed greater than 160 km/h)

It will also keep displaying these double three dashes when passing a signal marker or TIV panel in a square TIV-D or losange TIV-R announcing a 60 km/h restriction (two horizontal flashing yellow lights) or 30 km/h restriction (two horizontal steady yellow lights), but the LSSF lamp will be lit (the yellow lamp on the right of the KVB display will show a steady yellow light).

When passing a marker indicating a closed block signal, the LSSF lamp will start flashing , until the KVB aknowledge button is pressed. When the aknowledge button has been pressed, the LSSF lamp will display a steady yellow light. if not aknowledged , the emergency brakes will be automatically applied.
When passing a track marker for a closed signal, the KVB indicator will change to 2 yellow 0 and empty green [ 00 ] in the case of a closed signal that can be bypassed (after having previously stopped at the signal) at a speed no greater than 30 km/h. The KVB indicator will change to 3 yellow 0 and empty green [000 ] in the case of the closed signal that can be bypassed (again after previously stopping) proceeding at a speed no greater than 10 km/h.

If the speed of the engine is greater than the allowed speed, the KVB indicator will start bipping and display two steady yellow 0 and two flashing green 0 [ 00 **] (-> read ** as two flashing green 0) or three steady yellow zeroes and three flashing green 0 [000 ***] (read *** as three flashing green 0) depending wether the limit is 30 km/h ot 10 km/h. If the driver doesn't immediately apply the brakes to reduce speed, the emergency brakes will be automatically set.

Once passing a restricted speed marker signal or TIV panel, the KVB will check that the brakes have been applied sufficiently to allow the speed to sufficiently be reduced when passing the next signal or the Z signal (Z indicate the location at which the speed restriction becomes effective). If the stop signal is close from the Z signal and the speed is too high, the KVB indicator will start bipping while lighting the white light of the overspeed warning (V) located on the right of the KVB indicators. If the brakes are not applied to correct the overspeed, the emergency brakes are activated, and the white lamp of the emergency brake application will be displayed -(O)- (located on the right, next to the overspeed light warning)

After passing a TIV panel and crossing a yellow block signal indicating that the next block signal will be a closed red signal, the KVB indicators start displaying zeroes and the stop signal becomes priority; but the KVB keeps checking the speed untill passing the Z panel. If the Z panel is close to the stop signal, and the speed is too high to stop on time, the KVB will start bipping and the zeroes will start flashing.

When passing a closed signal (either a "semaphore" single red light, or a "carre" double red light):

-for a semaphore (single red), after having stopped in front of the signal, when proceeding past the signal, the KVB will display 3 yellow zeroes and 2 green zeroes [000 00] (the yellow 000 on the auxiliary indicator telling to cross next signal at a speed no greater than 10 km/h) or 2 yellow zeroes and 2 green zeroes (the yellow 00 on the auxilliary indicator telling to proceed through the next signal at a speed no greater than 30 km/h). The green 00 on the primary indicator telling at the same time to "proceed on sight, ready to stop immediately in case of obstruction" till passing the next signal.

-for a Carre (double red), after having stopped in front of the closed signal at a distance inferior to 100m from the signal, the BPFC button on the KVB (the red and white checkered square) has to be pushed (the BPFC button is active only for 100m - after having passed these 100m, the BPFC button resets itself and will no longer be active). Once BPFC is activated, it is possible to proceed past the signal, and the KVB will function as in the case of a semaphore (in terms of TS, it works as if pressing the Tab key to request permission to pass a red signal adequates to pressing the BPFC button to request permission to pass the Carre double red light signal).

When maneuvering on the track, it can be necessary to pass through closed signals (for exemple, in the case of an engine entering a section of track occupied by rolling stock it has to couple to). In this case, the BPMV violet button on the KVB has to be activated. Once BPMV is activated, the KVB will no longer take notice of the closed signals. The BPMV will keep activated for a maximum distance of 3600m before it is automatically reset and no longer active.

When passing the track marker for a temporary restricted speed zone LTV or a temporay TIV (speed restriction in a white round panel), the KVB will replace the [--- ---] (if not already indicating zeroes) by a [ L ] steady yellow L indication in the auxiliary indicator. If the speed reduction is not enough, the primary KVB indicator will also display a green flashing L instead [ L *L ] (read *L as a flashing green L). Once passing the black round panel indication where the speed reduction starts, the yellow L or flashing green L becomes a steady green L. Once the train is clear of the restricted speed zone, the KVB indication will return to [--- ---] (3 yellow and 3 green dashes).

For the engines with a speed above 160 km/h the KVB display a special signal: [ -b-] (green dash, green b, green dash) for the primary KVB indicator and nothing in the secondary indicator). This replace the double yellow/green three dashes used at speed lower than 160 km/h and is displayed at green signals.

To tell the driver to reduce speed to 160 km/h when crossing a green flashing signal or a P restricted speed panel, the KVB will display a yellow p in the auxiliary KVB indicator [-p- ]. this is an advance warning of the speed reduction; If speed reduction is not enough, the KVB will start bipping, and a green flashing p will be displayed in the primary indicator [ -*p-] (read *p as a flashing green p). If the braking is still not enough when crossing the next signal, emergency braking will automatically engage and the emergency braking white light -(0)- will be lit. If speed reduction is enough when passing the next signal, the green p will stop flashing and become steady. If the next siganl is a steady green again, the primary indicator of the KVB will again display a green b [ -b-]


That being said, I'm not sure KVB works properly in the game as the indication in the manual are confusing and limited. For now, I will say that Semaphore and Carre closed signals appears not to work as in real life. BPFC and BPMV buttons appears not to be working. BPMV adequates more or less with the tab key in TS. Speed restrictions should happen at turnout, but happen instead at the signal (thats the reason why indications of restricted speed on the hud are not synchronized with application of emergency brakes -> brakes will automatically switch to emergency when passing the signal instead of happening when crossing the panel indicating the place where speed restriction becomes effective .



Ultima modifica da horrido; 29 mag 2016, ore 19:39
Messaggio originale di darkage:
Messaggio originale di KajFlo:
You seem to have missed that the question envolved pretty quickly from "how does KVB work" to "why are there distant speed signals showing clear although there is a upcoming speed change" ?

And no, nobody told me here "how it works". You especially posted incorrect information here regarding yellow signals. So the question still stands and needs to be discussed.

3rd I never posted wrong info here, here I'll tell you like if you are a 6 year old, SOLID LIGHT SIGNAL YELLOW means a 30 km/h restriction,

Not true.
Read the manual, that applies only to Junction Speed Signals...
Stop spreading incorrect information please.

@horrido

Thanks !
Ultima modifica da KajFlo; 31 mag 2016, ore 5:05
Messaggio originale di KajFlo:
Messaggio originale di darkage:

3rd I never posted wrong info here, here I'll tell you like if you are a 6 year old, SOLID LIGHT SIGNAL YELLOW means a 30 km/h restriction,

Not true.
Read the manual, that applies only to Junction Speed Signals...
Stop spreading incorrect information please.

@horrido

Thanks !


I see there's no point talking to you, you'll just tell people they are wrong if you don't agree with them, bye man, have fun getting frustrated with the route, I know I won't
Ultima modifica da darkage; 31 mag 2016, ore 8:42
LOL, you are wrong. Get over it.
Messaggio originale di KajFlo:
LOL, you are wrong. Get over it.

you're the one criticizing everyone here that tries to help you, not me
Messaggio originale di darkage:
Messaggio originale di KajFlo:
LOL, you are wrong. Get over it.

you're the one criticizing everyone here that tries to help you, not me

And you are the one insisting I should accept incorrect answers.
I'm not criticizing everyone. I only criticise people who insist I should follow their advice no matter how wrong and stupid it is...
TVM works perfectly well in Kent High Speed DLC, from what I gather, KVB is the active system that correlates train speed, length, faults, weather conditions and other aspects of train control between unit and signalling centre and advises the driver to reduce speed or increase speed at each TVM signal point. Yes?

As soon as your KHS train leaves the tunnels at Northfleet, all KVB and TVM control systems cease and the train is then run to the lines known and learned route knowledge but is still protected by Thales ATP and AWS systems as well (not sure if these switch off during the other train protection systems usage)

So it sounds to me that somewhere in the DLC there is a reporting problem, if its supposed to be there in the game, from what I understand JT's TVM-300 systems work fine on their version of the French high speed lines.

KVB is a train protection system whilst TVM is a cab signalling system but they work together but have seperate roles and functions too.
Messaggio originale di KajFlo:
Messaggio originale di darkage:

you're the one criticizing everyone here that tries to help you, not me

And you are the one insisting I should accept incorrect answers.
I'm not criticizing everyone. I only criticise people who insist I should follow their advice no matter how wrong and stupid it is...

"damn I am smart for calling someone stupid indirectly over the internet" dude seriously *facepalm* -.-
Ultima modifica da darkage; 2 giu 2016, ore 5:41
well that was the most ridiculous discussion I've ever seen. Is KajFlo a troll?
Axe (Bandito) 31 mar 2018, ore 7:46 
Messaggio originale di Jaffa:
well that was the most ridiculous discussion I've ever seen. Is KajFlo a troll?

So you decided to bring up a 2 year old discussion just to have a go at someone? I've rarely seen a bigger troll... you should be proud...
Ultima modifica da Axe; 31 mar 2018, ore 7:46
Hello,

The first feature of KVB is protect train in case of speeding. The KVB do not show the speed, it will show --- --- that means you're allow to reach the maximum speed limit of the track. There's also a "signal control" feature: you have to reset the alarm on caution signals (similar to AWS).
The display can also show 00 (speed limit 30 km/h) or 000 (speed limit 10 km/h) after passing a caution signal. The problem is that KVB isn't so well implemented on TS and I usualy do not play with it on Marseille - Avignon.
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Data di pubblicazione: 28 mag 2016, ore 3:27
Messaggi: 58