Description

Simple RCCar powertrain subsystem (based on engine speed-torque maps).

#include <RCCar_SimpleMapPowertrain.h>

Inheritance diagram for chrono::vehicle::rccar::RCCar_SimpleMapPowertrain:

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Collaboration diagram for chrono::vehicle::rccar::RCCar_SimpleMapPowertrain:

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Public Member Functions
	RCCar_SimpleMapPowertrain (const std::string &name)

virtual double	GetMaxEngineSpeed () override
	Specify maximum engine speed.

virtual void	SetEngineTorqueMaps (ChFunction_Recorder &map0, ChFunction_Recorder &mapF) override
	Set the engine speed-torque maps. More...

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

virtual void	SetShiftPoints (std::vector< std::pair< double, double >> &shift_bands) override
	Set the ideal shift points for automatic gear shifting. More...

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

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. More...

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

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

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

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

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

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

void	EnableAutomaticTransmission (bool automatic)
	Enable/disable automatic transmission. More...

void	SetForwardGear (int igear)
	Set the current forward gear (1, 2, ...). More...

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...

Protected Member Functions inherited from chrono::vehicle::ChPart
virtual void	Create (const rapidjson::Document &d)
	Create a vehicle subsystem from JSON data. 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

◆ SetEngineTorqueMaps()

void chrono::vehicle::rccar::RCCar_SimpleMapPowertrain::SetEngineTorqueMaps	(	ChFunction_Recorder &	map0,
		ChFunction_Recorder &	mapF
	)

overridevirtual

Set the engine speed-torque maps.

A concrete class must add the speed-torque points to the provided maps, using the ChFunction_Recorder::AddPoint() function.

Parameters

[out]	map0	engine map at zero throttle
[out]	mapF	engine map at full throttle

Implements chrono::vehicle::ChSimpleMapPowertrain.

◆ SetGearRatios()

void chrono::vehicle::rccar::RCCar_SimpleMapPowertrain::SetGearRatios	(	std::vector< double > &	fwd_gear_ratios,
		double &	reverse_gear_ratio
	)

overridevirtual

Set the gears, i.e.

the transmission ratios of the various gears. A concrete class must populate the vector of forward gear ratios, ordered as 1st, 2nd, etc. and provide a value for the single reverse gear ratio.

Parameters

[out]	fwd_gear_ratios	list of forward gear ratios
[out]	reverse_gear_ratio	single reverse gear ratio

Implements chrono::vehicle::ChSimpleMapPowertrain.

◆ SetShiftPoints()

void chrono::vehicle::rccar::RCCar_SimpleMapPowertrain::SetShiftPoints ( std::vector< std::pair< double, double >> & shift_bands )

overridevirtual

Set the ideal shift points for automatic gear shifting.

For each forward gear, specify a pair (min, max) with the minimum and maximum engine speed for shifting (down and up, respectively).

Parameters

[out] shift_bands down-shift/up-shift points

Implements chrono::vehicle::ChSimpleMapPowertrain.

The documentation for this class was generated from the following files:

/builds/uwsbel/chrono/src/chrono_models/vehicle/rccar/RCCar_SimpleMapPowertrain.h
/builds/uwsbel/chrono/src/chrono_models/vehicle/rccar/RCCar_SimpleMapPowertrain.cpp

Description

Public Member Functions

Additional Inherited Members

Member Function Documentation

◆ SetEngineTorqueMaps()

◆ SetGearRatios()

◆ SetShiftPoints()