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6b82f1471a
Within fMaxProximityDist of a stop, going uphill, the AI holds its speed with AccDesired = min(0, AccPreferred). control_tractive_force only cut the power uphill when AccDesired < 0, so an AccDesired of exactly 0 kept the controller where it was. A consist that came into that range under power kept full power and crept up to the signal. Holding the speed uphill on the way to a stop now asks for no speeding up: power comes off once the train is faster than AccDesired allows. With the current brake valves this rarely shows: on a 10 per mille climb, four real-time runs of 32 consists each, the E186 with 25 empty 408W drew power in 0-14 samples of the last 50 m before and 0-8 after, no overruns either way. It surfaced once the AI predicted the ESt3 brake closer to what the valve delivers, where the same train crept to 12 km/h from 40 m out and overran the signal; with this change it stopped short in all runs.