void
SimWheelConfig(tCar *car, int index)
{
void *hdle = car->params;
tCarElt *carElt = car->carElt;
tWheel *wheel = &(car->wheel[index]);
tdble rimdiam, tirewidth, tireratio, pressure, tireheight;
tdble x0, Ca, RFactor, EFactor, patchLen;
pressure = GfParmGetNum(hdle, WheelSect[index], PRM_PRESSURE, (char*)NULL, 275600);
rimdiam = GfParmGetNum(hdle, WheelSect[index], PRM_RIMDIAM, (char*)NULL, 0.33f);
tirewidth = GfParmGetNum(hdle, WheelSect[index], PRM_TIREWIDTH, (char*)NULL, 0.145f);
tireheight = GfParmGetNum(hdle, WheelSect[index], PRM_TIREHEIGHT, (char*)NULL, -1.0f);
tireratio = GfParmGetNum(hdle, WheelSect[index], PRM_TIRERATIO, (char*)NULL, 0.75f);
wheel->mu = GfParmGetNum(hdle, WheelSect[index], PRM_MU, (char*)NULL, 1.0f);
wheel->I = GfParmGetNum(hdle, WheelSect[index], PRM_INERTIA, (char*)NULL, 1.5f);
wheel->I += wheel->brake.I; // add brake inertia
wheel->staticPos.y = GfParmGetNum(hdle, WheelSect[index], PRM_YPOS, (char*)NULL, 0.0f);
x0 = GfParmGetNum(hdle, WheelSect[index], PRM_RIDEHEIGHT, (char*)NULL, 0.20f);
wheel->staticPos.az = GfParmGetNum(hdle, WheelSect[index], PRM_TOE, (char*)NULL, 0.0f);
wheel->staticPos.ax = GfParmGetNum(hdle, WheelSect[index], PRM_CAMBER, (char*)NULL, 0.0f);
Ca = GfParmGetNum(hdle, WheelSect[index], PRM_CA, (char*)NULL, 30.0f);
RFactor = GfParmGetNum(hdle, WheelSect[index], PRM_RFACTOR, (char*)NULL, 0.8f);
EFactor = GfParmGetNum(hdle, WheelSect[index], PRM_EFACTOR, (char*)NULL, 0.7f);
wheel->lfMax = GfParmGetNum(hdle, WheelSect[index], PRM_LOADFMAX, (char*)NULL, 1.6f);
wheel->lfMin = GfParmGetNum(hdle, WheelSect[index], PRM_LOADFMIN, (char*)NULL, 0.8f);
wheel->opLoad = GfParmGetNum(hdle, WheelSect[index], PRM_OPLOAD, (char*)NULL, wheel->weight0 * 1.2f);
wheel->mass = GfParmGetNum(hdle, WheelSect[index], PRM_MASS, (char*)NULL, 20.0f);
if (index % 2) {
wheel->relPos.ax = -wheel->staticPos.ax;
} else {
wheel->relPos.ax = wheel->staticPos.ax;
}
wheel->lfMin = MIN(0.8f, wheel->lfMin);
wheel->lfMax = MAX(1.6f, wheel->lfMax);
RFactor = MIN(1.0f, RFactor);
RFactor = MAX(0.1f, RFactor);
EFactor = MIN(1.0f, EFactor);
patchLen = wheel->weight0 / (tirewidth * pressure);
if (tireheight > 0.0)
wheel->radius = rimdiam / 2.0f + tireheight;
else
wheel->radius = rimdiam / 2.0f + tirewidth * tireratio;
wheel->tireSpringRate = wheel->weight0 / (wheel->radius * (1.0f - cos(asin(patchLen / (2.0f * wheel->radius)))));
wheel->relPos.x = wheel->staticPos.x = car->axle[index/2].xpos;
wheel->relPos.y = wheel->staticPos.y;
wheel->relPos.z = wheel->radius - wheel->susp.spring.x0;
wheel->relPos.ay = wheel->relPos.az = 0.0f;
wheel->steer = 0.0f;
/* components */
SimSuspConfig(hdle, SuspSect[index], &(wheel->susp), wheel->weight0, x0);
SimBrakeConfig(hdle, BrkSect[index], &(wheel->brake));
carElt->_rimRadius(index) = rimdiam / 2.0f;
if (tireheight > 0.0)
carElt->_tireHeight(index) = tireheight;
else
carElt->_tireHeight(index) = tirewidth * tireratio;
carElt->_tireWidth(index) = tirewidth;
carElt->_brakeDiskRadius(index) = wheel->brake.radius;
carElt->_wheelRadius(index) = wheel->radius;
wheel->mfC = (tdble)(2.0 - asin(RFactor) * 2.0 / PI);
wheel->mfB = Ca / wheel->mfC;
wheel->mfE = EFactor;
wheel->lfK = log((1.0f - wheel->lfMin) / (wheel->lfMax - wheel->lfMin));
wheel->feedBack.I += wheel->I;
wheel->feedBack.spinVel = 0.0f;
wheel->feedBack.Tq = 0.0f;
wheel->feedBack.brkTq = 0.0f;
wheel->rel_vel = 0.0f;
}
void
SimWheelConfig(tCar *car, int index)
{
void *hdle = car->params;
tCarElt *carElt = car->carElt;
tWheel *wheel = &(car->wheel[index]);
tdble rimdiam, tirewidth, tireratio, pressure, tireheight;
tdble x0, Ca, RFactor, EFactor, patchLen;
pressure = GfParmGetNum(hdle, WheelSect[index], PRM_PRESSURE, (char*)NULL, 275600);
rimdiam = GfParmGetNum(hdle, WheelSect[index], PRM_RIMDIAM, (char*)NULL, 0.33f);
tirewidth = GfParmGetNum(hdle, WheelSect[index], PRM_TIREWIDTH, (char*)NULL, 0.145f);
tireratio = GfParmGetNum(hdle, WheelSect[index], PRM_TIRERATIO, (char*)NULL, 0.75f);
tireheight = GfParmGetNum(hdle, WheelSect[index], PRM_TIREHEIGHT, (char*)NULL, -1.0f);
wheel->mu = GfParmGetNum(hdle, WheelSect[index], PRM_MU, (char*)NULL, 1.0f);
wheel->I = GfParmGetNum(hdle, WheelSect[index], PRM_INERTIA, (char*)NULL, 1.5f);
wheel->I += wheel->brake.I; /* add brake inertia */
wheel->staticPos.y = GfParmGetNum(hdle, WheelSect[index], PRM_YPOS, (char*)NULL, 0);
x0 = GfParmGetNum(hdle, WheelSect[index], PRM_RIDEHEIGHT, (char*)NULL, 0.20f);
wheel->staticPos.az = GfParmGetNum(hdle, WheelSect[index], PRM_TOE, (char*)NULL, 0.0f);
wheel->staticPos.ax = GfParmGetNum(hdle, WheelSect[index], PRM_CAMBER, (char*)NULL, 0.0f);
Ca = GfParmGetNum(hdle, WheelSect[index], PRM_CA, (char*)NULL, 30.0f);
RFactor = GfParmGetNum(hdle, WheelSect[index], PRM_RFACTOR, (char*)NULL, 0.8f);
EFactor = GfParmGetNum(hdle, WheelSect[index], PRM_EFACTOR, (char*)NULL, 0.7f);
wheel->lfMax = GfParmGetNum(hdle, WheelSect[index], PRM_LOADFMAX, (char*)NULL, 1.6f);
wheel->lfMin = GfParmGetNum(hdle, WheelSect[index], PRM_LOADFMIN, (char*)NULL, 0.8f);
wheel->opLoad = GfParmGetNum(hdle, WheelSect[index], PRM_OPLOAD, (char*)NULL, wheel->weight0 * 1.2f);
wheel->mass = GfParmGetNum(hdle, WheelSect[index], PRM_MASS, (char*)NULL, 20.0f);
wheel->dynamic_camber = GfParmGetNum(hdle, WheelSect[index], PRM_DYNAMIC_CAMBER, (char*)NULL, -0.1f);
wheel->condition = 1.0f;
wheel->T_current = 50.0f;
wheel->T_operating = 75.0f;
wheel->T_range = 200.0f;
wheel->mfT = 1.0f;
car->carElt->_tyreT_mid(index) = wheel->T_current;
car->carElt->_tyreCondition(index) = wheel->condition;
if (index % 2) {
wheel->relPos.ax = -wheel->staticPos.ax;
} else {
wheel->relPos.ax = wheel->staticPos.ax;
}
wheel->lfMin = MIN(0.9f, wheel->lfMin);
wheel->lfMax = MAX(1.1f, wheel->lfMax);
RFactor = MIN(1.0f, RFactor);
RFactor = MAX(0.1f, RFactor);
EFactor = MIN(1.0f, EFactor);
patchLen = wheel->weight0 / (tirewidth * pressure);
wheel->width = tirewidth;
if (tireheight > 0.0)
wheel->radius = rimdiam / 2.0f + tireheight;
else
wheel->radius = rimdiam / 2.0f + tirewidth * tireratio;
wheel->tireSpringRate = (float)(wheel->weight0 / (wheel->radius * (1.0 - cos(asin(patchLen / (2.0f * wheel->radius))))));
wheel->relPos.x = wheel->staticPos.x = car->axle[index/2].xpos;
wheel->relPos.y = wheel->staticPos.y;
wheel->relPos.z = wheel->radius - wheel->susp.spring.x0;
wheel->relPos.ay = wheel->relPos.az = 0.0f;
wheel->steer = 0.0f;
/* components */
SimSuspConfig(hdle, SuspSect[index], &(wheel->susp), wheel->weight0, x0);
SimBrakeConfig(hdle, BrkSect[index], &(wheel->brake));
carElt->_rimRadius(index) = rimdiam / 2.0f;
if (tireheight > 0.0)
carElt->_tireHeight(index) = tireheight;
else
carElt->_tireHeight(index) = tirewidth * tireratio;
carElt->_tireWidth(index) = tirewidth;
carElt->_brakeDiskRadius(index) = wheel->brake.radius;
carElt->_wheelRadius(index) = wheel->radius;
wheel->Ca = Ca;
wheel->mfC = (float)(2.0 - asin(RFactor) * 2.0 / PI);
wheel->mfB = Ca / wheel->mfC;
wheel->mfE = EFactor;
wheel->lfK = (float)log((1.0 - wheel->lfMin) / (wheel->lfMax - wheel->lfMin));
wheel->spinVel = 0.0;
wheel->feedBack.I += wheel->I;
wheel->feedBack.spinVel = 0;
wheel->feedBack.Tq = 0;
wheel->feedBack.brkTq = 0;
wheel->rel_vel = 0.0f;
wheel->rotational_damage_x = 0.0;//urandom()*0.25;
wheel->rotational_damage_z = 0.0;//urandom()*0.25;
wheel->bent_damage_x = urandom();
wheel->bent_damage_z = urandom();
wheel->Em = 1.0;
wheel->s_old = 0.0;
wheel->F_old = 0.0;
#ifdef USE_THICKNESS
//wheel->thickness = malloc(sizeof(tdble)*N_THICKNESS_SEGMENTS);
for (int i=0; i<N_THICKNESS_SEGMENTS; i++) {
wheel->thickness[i] = 0.0;
wheel->segtemp[i] = wheel->T_current;
}
#endif
}
