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Engine: fix the new issue that causes FDM to go crazy when switching gears

This commit is contained in:
Sidi Liang 2021-03-12 14:35:25 +08:00
parent 9d59e563d0
commit e6be44895d
1 changed files with 13 additions and 10 deletions

23
Nasal/engine.nas
View File

@ -1,6 +1,12 @@
#//Followme EV electric engine by Sidi Liang
#//Contact: sidi.liang@gmail.com
#//Bug log: engine still runs after battary drains up
#//Switching between D and R might fail?
#//Goes crazy when attampt to drive with brakes not released
#//Electrical system error message
#//Drain battary too fast?
var N2LBS = 0.2248089;
var Engine = {
#//Class for any electric engine
@ -64,7 +70,7 @@ var Engine = {
frictionNode: props.getNode("/fdm/jsbsim/forces/fbx-gear-lbs", 1),
wheelSpeedNode: props.getNode("/gear/gear/rollspeed-ms", 1),
debugMode: 1,
debugMode: 0,
calculateRatedCurrent: func(){ #//Returns the rated current
var a = me.motorResistance;
@ -82,7 +88,6 @@ var Engine = {
var rpm = me.rpm;
#//var rps = rpm / 60;
var angularSpeed = rpm * 0.10471975; #//rps * 2 * 3.1415926
var friction_lbs = me.frictionNode.getValue();
@ -91,10 +96,8 @@ var Engine = {
#print(angularAcceleration);
#print("de"~angularDecelaeration);
angularDecelaeration = math.abs(angularDecelaeration) * direction * -1;
angularDecelaeration = math.abs(angularDecelaeration) * -1;#//Not accurate
angularAcceleration *= direction;
var totalAcceleration = angularAcceleration + angularDecelaeration;
if(direction == 1){
@ -117,11 +120,11 @@ var Engine = {
var wheelSpeed_ms = me.wheelSpeedNode.getValue();
var wheelAngularSpeed = wheelSpeed_ms / me.wheel_radius;
var targetAngularSpeed = wheelAngularSpeed * me.gear;
var targetAngularSpeed = math.abs(wheelAngularSpeed) * me.gear;
#print("WheelAngularSpeed x gear " ~ wheelAngularSpeed * me.gear);
if(math.abs(angularSpeed) < targetAngularSpeed) angularSpeed = targetAngularSpeed * direction;
if(math.abs(angularSpeed) < targetAngularSpeed) angularSpeed = targetAngularSpeed;
#print("AngularSpeed " ~ angularSpeed);
@ -175,7 +178,7 @@ var Engine = {
var angularAcceleration = me.cmdTorque / me.rotor_moi; #rad/s^2
me.rpm = me.rpm_calculate(angularAcceleration);
if(me.rpm) me.torque = (9549 * me.cmdPower) / me.rpm;
if(me.rpm) me.torque = ((9549 * me.cmdPower) / me.rpm) * direction;
me.activePower_kW = math.abs(me.rpm * me.torque / 9549);
@ -199,7 +202,7 @@ var Engine = {
me.outputForce = force;
if(me.debugMode){
me.debugPrint();
me.printDebugInfo();
}
@ -233,7 +236,7 @@ var Engine = {
props.getNode("/",1).setValue("/controls/engines/engine/started",0);
},
debugPrint: func(){
printDebugInfo: func(){
print("rpm: "~me.rpm);
print("torque: "~me.torque);
print("power: "~me.activePower_kW);