pwarszawski 504d69b26a AI braking: keep braking for a lower speed inside the proximity range ...

Inside the proximity range only a stop had a final approach of its own;
for a lower speed ahead that branch set nothing, so AccDesired stayed at
the preferred acceleration. With the range at 50 m, which this PR uses so
that trains stop 8-15 m short of a signal, the AI stopped braking within
the last 50 m before a speed restriction and even took power: EMUs reached
a 20 km/h restriction at 25 km/h. On master the range is 15-40 m, which
kept this mostly out of sight.

A lower speed ahead now keeps the braking curve right up to where it
begins. Stops are unchanged.

Measured in real time on current master (with #199), with a 20 km/h
restriction one coach long, two runs of 32 consists each: over 22 km/h in
the restriction on the flat 9 on master, 15 before this change, 1 after
(a 36WEa at 22.1 km/h); on the 20 per mille descent 15, 0 and 0. Stops
8-15 m short of the signal stay as they were (flat 57 and 55 of 64,
descent 44 and 42), no overruns.

2026-10-10 23:39:19 +02:00

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