diff --git a/DynObj.cpp b/DynObj.cpp
index 9ebf2bfa..d3571f05 100644
--- a/DynObj.cpp
+++ b/DynObj.cpp
@@ -4184,6 +4184,21 @@ void TDynamicObject::RenderSounds() {
         sConverter.stop();
     }
 
+    // Odtworzenie dzwieku wentylatora rezystora hamowania
+
+	if (MoverParameters->BRVentilators)
+	{
+		sBRVent.play(sound_flags::exclusive | sound_flags::looping);
+	}
+	else
+	{
+		sBRVent.stop();
+	}
+
+
+
+
+
     if( MoverParameters->CompressorSpeed > 0.0 ) {
         // McZapkie! - dzwiek compressor.wav tylko gdy dziala sprezarka
         if( MoverParameters->CompressorFlag ) {
@@ -5976,6 +5991,13 @@ void TDynamicObject::LoadMMediaFile( std::string const &TypeName, std::string co
                     sConverter.deserialize( parser, sound_type::multipart, sound_parameters::range );
                     sConverter.owner( this );
                 }
+                
+                // Dzwiek wentylatora rezystora hamowania
+				else if (token == "brakingresistorventilator:")
+				{
+					sBRVent.deserialize(parser, sound_type::multipart, sound_parameters::range);
+					sBRVent.owner(this);
+				}
 
                 else if( token == "heater:" ) {
                     // train heating device
@@ -6740,7 +6762,7 @@ void TDynamicObject::LoadMMediaFile( std::string const &TypeName, std::string co
     // other engine compartment sounds
     auto const nullvector { glm::vec3() };
     std::vector<sound_source *> enginesounds = {
-        &sConverter, &sCompressor, &sCompressorIdle, &sSmallCompressor, &sHeater, &m_batterysound
+        &sConverter, &sBRVent, &sCompressor, &sCompressorIdle, &sSmallCompressor, &sHeater, &m_batterysound
     };
     for( auto sound : enginesounds ) {
         if( sound->offset() == nullvector ) {
diff --git a/DynObj.h b/DynObj.h
index 840238d6..32207ab9 100644
--- a/DynObj.h
+++ b/DynObj.h
@@ -486,6 +486,7 @@ private:
     // engine sounds
     powertrain_sounds m_powertrainsounds;
     sound_source sConverter { sound_placement::engine };
+	sound_source sBRVent {sound_placement::engine};
     sound_source sCompressor { sound_placement::engine }; // NBMX wrzesien 2003
     sound_source sCompressorIdle { sound_placement::engine };
     sound_source sSmallCompressor { sound_placement::engine };
diff --git a/McZapkie/MOVER.h b/McZapkie/MOVER.h
index 73a9df50..cb601888 100644
--- a/McZapkie/MOVER.h
+++ b/McZapkie/MOVER.h
@@ -1341,6 +1341,9 @@ public:
 	double InvertersRatio = 0.0;
 	std::vector<inverter> Inverters; //all inverters
 	int InverterControlCouplerFlag = 4; //which coupling flag is necessary to controll inverters
+	int Imaxrpc = 0;	// Maksymalny prad rezystora hamowania chlodzonego pasywnie
+	int BRVto = 0;		// Czas jaki wentylatory jeszcze dodatkowo schladzaja rezystor
+	double BRVtimer = 0;	// Timer dla podtrzymania wentylatora
 	std::map<double, double> EIM_Pmax_Table; /*tablica mocy maksymalnej od predkosci*/
 	/* -dla pojazdów z blendingiem EP/ED (MED) */
 	double MED_Vmax = 0; // predkosc maksymalna dla obliczen chwilowej sily hamowania EP w MED
@@ -1471,6 +1474,7 @@ public:
 	bool ConverterAllow = false;             /*zezwolenie na prace przetwornicy NBMX*/
     bool ConverterAllowLocal{ true }; // local device state override (most units don't have this fitted so it's set to true not to intefere)
     bool ConverterFlag = false;              /*!  czy wlaczona przetwornica NBMX*/
+	bool BRVentilators = false; /* Czy rezystor hamowania pracuje */
     start_t ConverterOverloadRelayStart { start_t::manual }; // whether overload relay reset responds to dedicated button
     bool ConverterOverloadRelayOffWhenMainIsOff { false };
     fuel_pump FuelPump;
diff --git a/McZapkie/Mover.cpp b/McZapkie/Mover.cpp
index 1b9bfbfe..886209a9 100644
--- a/McZapkie/Mover.cpp
+++ b/McZapkie/Mover.cpp
@@ -1597,6 +1597,26 @@ void TMoverParameters::compute_movement_( double const Deltatime ) {
         }
     }
 
+    // Uproszczona symulacja wentylatorow rezystora hamowania
+    
+	// Prad oddawany na rezystor
+	double Irh = abs(eimv[eimv_Pe]) - abs(eimv[eimv_Ipoj]);
+
+	// Wlacz wentylator jesli prad rekuperacji przekroczy maksymalny dla pasywnego chlodzenia rezystora
+	if (Irh > Imaxrpc && eimv[eimv_Ipoj] < 0)
+	{
+		BRVtimer = 0;
+		BRVentilators = true;
+    }
+    else {
+		BRVtimer += Deltatime;
+		if (BRVtimer > BRVto)
+			BRVentilators = false;
+    }
+
+
+
+
     // automatyczny rozruch
     if( EngineType == TEngineType::ElectricSeriesMotor ) {
         if( AutoRelayCheck() ) {
@@ -6408,6 +6428,7 @@ double TMoverParameters::TractionForce( double dt ) {
                         0.007 * (std::abs(EngineVoltage) - (EnginePowerSource.CollectorParameters.MaxV - 100)));
                 Itot = eimv[eimv_Ipoj] * (0.01 + std::min(0.99, 0.99 - Vadd));
 
+
                 EnginePower = abs(eimv[eimv_Ic] * eimv[eimv_U] * NPoweredAxles) / 1000;
                 // power inverters
                 auto const tmpV { std::abs( eimv[ eimv_fp ] ) };
@@ -11019,7 +11040,8 @@ void TMoverParameters::LoadFIZ_Engine( std::string const &Input ) {
 			extract_value( EIMCLogForce, "eimclf", Input, "" );
 			extract_value( InvertersNo, "InvNo", Input, "" );
 			extract_value( InverterControlCouplerFlag, "InvCtrCplFlag", Input, "" );
-
+		    extract_value(Imaxrpc, "Imaxrpc", Input, "");
+		    extract_value(BRVto, "BRVto", Input, "");
 			extract_value( Flat, "Flat", Input, "");
 
 			if (eimc[eimc_p_Pmax] > 0 && Power > 0 && InvertersNo == 0) {