Description

Shafts-based powertrain subsystem (specified through JSON file).

#include <ShaftsPowertrain.h>

Inheritance diagram for chrono::vehicle::ShaftsPowertrain:

[legend]

Collaboration diagram for chrono::vehicle::ShaftsPowertrain:

[legend]

Public Member Functions
	ShaftsPowertrain (const std::string &filename)

	ShaftsPowertrain (const rapidjson::Document &d)

virtual void	SetGearRatios (std::vector< double > &gear_ratios) override
	Set up the gears, i.e. More...

virtual double	GetMotorBlockInertia () const override
	Inertias of the component ChShaft objects.

virtual double	GetCrankshaftInertia () const override

virtual double	GetIngearShaftInertia () const override

virtual double	GetUpshiftRPM () const override
	Upshift and downshift rotation speeds (in RPM)

virtual double	GetDownshiftRPM () const override

virtual void	SetEngineTorqueMap (std::shared_ptr< ChFunction_Recorder > &map) override
	Engine speed-torque map.

virtual void	SetEngineLossesMap (std::shared_ptr< ChFunction_Recorder > &map) override
	Engine speed-torque braking effect because of losses.

virtual void	SetTorqueConverterCapacityFactorMap (std::shared_ptr< ChFunction_Recorder > &map) override
	Set the capacity factor map. More...

virtual void	SetTorqeConverterTorqueRatioMap (std::shared_ptr< ChFunction_Recorder > &map) override
	Set the torque ratio map. More...

Public Member Functions inherited from chrono::vehicle::ChShaftsPowertrain
	ChShaftsPowertrain (const std::string &name, const ChVector<> &dir_motor_block=ChVector<>(1, 0, 0))
	Construct a shafts-based powertrain model.

virtual std::string	GetTemplateName () const override
	Get the name of the vehicle subsystem template.

virtual double	GetMotorSpeed () const override
	Return the current engine speed.

virtual double	GetMotorTorque () const override
	Return the current engine torque.

virtual double	GetTorqueConverterSlippage () const override
	Return the value of slippage in the torque converter.

virtual double	GetTorqueConverterInputTorque () const override
	Return the input torque to the torque converter.

virtual double	GetTorqueConverterOutputTorque () const override
	Return the output torque from the torque converter.

virtual double	GetTorqueConverterOutputSpeed () const override
	Return the torque converter output shaft speed.

virtual int	GetCurrentTransmissionGear () const override
	Return the current transmission gear.

virtual double	GetOutputTorque () const override
	Return the output torque from the powertrain. More...

virtual void	SetDriveMode (ChPowertrain::DriveMode mmode) override
	Use this function to set the mode of automatic transmission.

void	SetSelectedGear (int igear)
	Use this function to shift from one gear to another. More...

void	SetGearShiftLatency (double ml)
	Use this to define the gear shift latency, in seconds.

double	GetGearShiftLatency (double ml)
	Use this to get the gear shift latency, in seconds.

Public Member Functions inherited from chrono::vehicle::ChPowertrain
	ChPowertrain (const std::string &name)

DriveMode	GetDriveMode ()
	Return the current mode of the transmission.

Public Member Functions inherited from chrono::vehicle::ChPart
	ChPart (const std::string &name)
	Construct a vehicle subsystem with the specified name. More...

const std::string &	GetName () const
	Get the name identifier for this subsystem.

void	SetName (const std::string &name)
	Set the name identifier for this subsystem.

void	SetVisualizationType (VisualizationType vis)
	Set the visualization mode for this subsystem.

virtual void	AddVisualizationAssets (VisualizationType vis)
	Add visualization assets to this subsystem, for the specified visualization mode.

virtual void	RemoveVisualizationAssets ()
	Remove all visualization assets from this subsystem.

virtual void	SetOutput (bool state)
	Enable/disable output for this subsystem.

bool	OutputEnabled () const
	Return the output state for this subsystem.

virtual void	ExportComponentList (rapidjson::Document &jsonDocument) const
	Export this subsystem's component list to the specified JSON object. More...

virtual void	Output (ChVehicleOutput &database) const
	Output data for this subsystem's component list to the specified database.

Additional Inherited Members
Public Types inherited from chrono::vehicle::ChPowertrain
enum	DriveMode { FORWARD, NEUTRAL, REVERSE }
	Driving modes. More...

Static Public Member Functions inherited from chrono::vehicle::ChPart
static ChMatrix33	TransformInertiaMatrix (const ChVector<> &moments, const ChVector<> &products, const ChMatrix33<> &vehicle_rot, const ChMatrix33<> &body_rot)
	Utility function for transforming inertia tensors between centroidal frames. More...

Static Protected Member Functions inherited from chrono::vehicle::ChPart
static void	ExportBodyList (rapidjson::Document &jsonDocument, std::vector< std::shared_ptr< ChBody >> bodies)
	Export the list of bodies to the specified JSON document.

static void	ExportShaftList (rapidjson::Document &jsonDocument, std::vector< std::shared_ptr< ChShaft >> shafts)
	Export the list of shafts to the specified JSON document.

static void	ExportJointList (rapidjson::Document &jsonDocument, std::vector< std::shared_ptr< ChLink >> joints)
	Export the list of joints to the specified JSON document.

static void	ExportCouplesList (rapidjson::Document &jsonDocument, std::vector< std::shared_ptr< ChShaftsCouple >> couples)
	Export the list of shaft couples to the specified JSON document.

static void	ExportMarkerList (rapidjson::Document &jsonDocument, std::vector< std::shared_ptr< ChMarker >> markers)
	Export the list of markers to the specified JSON document.

static void	ExportLinSpringList (rapidjson::Document &jsonDocument, std::vector< std::shared_ptr< ChLinkTSDA >> springs)
	Export the list of translational springs to the specified JSON document.

static void	ExportRotSpringList (rapidjson::Document &jsonDocument, std::vector< std::shared_ptr< ChLinkRotSpringCB >> springs)
	Export the list of rotational springs to the specified JSON document.

static void	ExportBodyLoadList (rapidjson::Document &jsonDocument, std::vector< std::shared_ptr< ChLoadBodyBody >> loads)
	Export the list of body-body loads to the specified JSON document.

Protected Attributes inherited from chrono::vehicle::ChPowertrain
DriveMode	m_drive_mode
	drive mode (neutral, forward, or reverse)

std::shared_ptr< ChDriveline >	m_driveline
	associated driveline subsystem

Protected Attributes inherited from chrono::vehicle::ChPart
std::string	m_name
	subsystem name

bool	m_output
	specifies whether or not output is generated for this subsystem

Member Function Documentation

◆ SetGearRatios()

void chrono::vehicle::ShaftsPowertrain::SetGearRatios ( std::vector< double > & gear_ratios )

overridevirtual

Set up the gears, i.e.

the transmission ratios of the various gears. A derived class must populate the vector gear_ratios, using the 0 index for reverse and 1,2,3,etc. for the forward gears.

Implements chrono::vehicle::ChShaftsPowertrain.