twpol
commented
11 years ago Imported from https://bugs.launchpad.net/or/+bug/1120678/comments/1
| Property | Value |
|---|---|
| Posted by | Peter Gulyas (pzgulyas) |
| Date posted | Mon, 25 Feb 2013 11:53:22 GMT |
This bug is a keyboard handling issue, not a notch controller defect. Because of this it affects not only the brake controller, but all smooth controllers: Regulator/Throttle, Dynamic brake, Engine brake.
The problem is the "jump" of percent value at key hitting moment. When the key is held down continuously, the increase/decrease of the percent value is calculated correctly. But at pressing time the value gets a boost, as if it had been pressed many tenth seconds ago.
This bug is uncomfortable especially at controllers set to e.g. 0.1 as smooth "step" as shown at example above, because that means the value should change by 10% in 0.1 second. But in case the value is at lets say 8%, and the user hits the increase key, it jumps immediately to value at about 70%, and starts increasing by 10%/0.1s from that, instead of just simply start increasing by the predefined 10%/0.1s speed.
This is a general timing issue of keyboard handling.
Imported from https://bugs.launchpad.net/bugs/1120678
Since the Signal update (X1395) i noticed that a lots of rolling stock have way too sensitive trainbrake levers. An example: the brake is at release, i touch the brake apply button (just push for a moment and release), -> LAP, next touch -> ~8% service, next touch -> 70+% service... next, emergency. Even for a little touch it changes about 60%, both up and down, so it's very hard to control.
Here is the brake notching section of one of these locomotives: Brake_Train ( 0 1 0.1 0.4 NumNotches ( 5 Notch ( 0 0 TrainBrakesControllerReleaseStart ) Notch ( 0.1 0 TrainBrakesControllerHoldStart ) Notch ( 0.2 1 TrainBrakesControllerGraduatedSelfLapLimitedHoldingStart ) Notch ( 0.9 0 TrainBrakesControllerContinuousServiceStart ) Notch ( 1.0 0 TrainBrakesControllerEmergencyStart )