I noticed that when the gradient is >2-3%, the speed control won't fully brake the train, sometimes leaving it to seriously overspeed, is this normal behaviour? As a correction I always set the limit at 290kmh (instead of 300)
I’ve noticed this too. The train doesn’t seem to make full use of the brakes when going down a steep gradient allowing itself to over speed somewhat. This might be true to life, but it seems odd not to make full use of the brakes when able.
You have to apply the brakes manually since the speed control is only using the engines as brakes (recuperation). Since this TGV has control cars on each side of the train and not underfloor engines like the ICE 3, the e-brake performs quite poorly. Don't know if it's realistic, but logically it might be correct.
I think this is by design (not sure about real life). You need to "help" the speed control with manual brakes.
The regenerative braking system is poor, but in the game, when on speed control, the train isn’t making full use of the regenerative braking system. It’ll apply to various degrees but rarely applies up to 100%. If it applied up to 100% it would be able to hold the speed back on steep gradients better without the driver having to use the air brakes. It seems odd that regenerative braking isn’t fully applied on a steep gradient requiring the driver to manually intervene by applying 100% regenerative braking or applying the air brakes.
I experienced this too, but found it to help somewhat if being "prepared" and applying it a little early. Not just applying it right as I needed it. If that makes any sense. Even then, though, I had to on occasion help with a bit of air breaking.
