chrono::vehicle::gator::Gator_SimpleMapPowertrain Class Reference

Description

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

#include <Gator_SimpleMapPowertrain.h>

Inheritance diagram for chrono::vehicle::gator::Gator_SimpleMapPowertrain:
Collaboration diagram for chrono::vehicle::gator::Gator_SimpleMapPowertrain:

Public Member Functions

 Gator_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, double &rev) override
 Set the transmission gear ratios (one or more forward gear ratios and a single reverse gear ratio).
 
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 total engine torque.
 
double GetMotorResistance () const
 Return the current engine resistance 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 double GetOutputTorque () const override
 Return the output torque from the powertrain. More...
 
- Public Member Functions inherited from chrono::vehicle::ChPowertrain
int GetCurrentTransmissionGear () const
 Return the current transmission gear. More...
 
void SetDriveMode (DriveMode mode)
 Set the drive mode.
 
DriveMode GetDriveMode () const
 Return the current drive mode.
 
void SetTransmissionMode (TransmissionMode mode)
 Set the transmission mode (automatic or manual). More...
 
TransmissionMode GetTransmissionMode () const
 Get the current transmission mode.
 
void ShiftUp ()
 Shift up.
 
void ShiftDown ()
 Shift down.
 
void SetGear (int gear)
 Shift to the specified gear. More...
 
- Public Member Functions inherited from chrono::vehicle::ChPart
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.
 
double GetMass () const
 Get the subsystem mass. More...
 
const ChFrameGetCOMFrame () const
 Get the current subsystem COM frame (relative to and expressed in the subsystem's reference frame). More...
 
const ChMatrix33GetInertia () const
 Get the current subsystem inertia (relative to the subsystem COM frame). More...
 
const ChFrameGetTransform () const
 Get the current subsystem position relative to the global frame. More...
 
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 { DriveMode::FORWARD, DriveMode::NEUTRAL, DriveMode::REVERSE }
 Driving modes. More...
 
enum  TransmissionMode { TransmissionMode::AUTOMATIC, TransmissionMode::MANUAL }
 Transmission mode. 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::ChSimpleMapPowertrain
virtual void SetMotorResistanceCoefficients (double &c0, double &c1)
 Set coefficients for motor resistance. More...
 
- Protected Member Functions inherited from chrono::vehicle::ChPowertrain
 ChPowertrain (const std::string &name)
 
virtual void InitializeInertiaProperties () override
 Initialize subsystem inertia properties. More...
 
virtual void UpdateInertiaProperties () override
 Update subsystem inertia properties. More...
 
virtual void OnGearShift ()
 Perform any action required on a gear shift (the new gear and gear ratio are available).
 
virtual void OnNeutralShift ()
 Perform any action required on placing the transmission in neutral.
 
- Protected Member Functions inherited from chrono::vehicle::ChPart
 ChPart (const std::string &name)
 Construct a vehicle subsystem with the specified name.
 
void AddMass (double &mass)
 Add this subsystem's mass. More...
 
void AddInertiaProperties (ChVector<> &com, ChMatrix33<> &inertia)
 Add this subsystem's inertia properties. More...
 
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< ChLinkRSDA >> 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.
 
static void RemoveVisualizationAssets (std::shared_ptr< ChPhysicsItem > item)
 Erase all visual shapes from the visual model associated with the specified physics item (if any).
 
static void RemoveVisualizationAsset (std::shared_ptr< ChPhysicsItem > item, std::shared_ptr< ChVisualShape > shape)
 Erase the given shape from the visual model associated with the specified physics item (if any).
 
- Protected Attributes inherited from chrono::vehicle::ChPowertrain
TransmissionMode m_transmission_mode
 transmission mode (automatic or manual)
 
DriveMode m_drive_mode
 drive mode (neutral, forward, or reverse)
 
std::shared_ptr< ChDrivelinem_driveline
 associated driveline subsystem
 
std::vector< double > m_gear_ratios
 gear ratios (0: reverse, 1+: forward)
 
int m_current_gear
 current transmission gear (0: reverse, 1+: forward)
 
double m_current_gear_ratio
 current gear ratio (positive for forward, negative for reverse)
 
- 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
 
std::shared_ptr< ChPartm_parent
 parent subsystem (empty if parent is vehicle)
 
double m_mass
 subsystem mass
 
ChMatrix33 m_inertia
 inertia tensor (relative to subsystem COM)
 
ChFrame m_com
 COM frame (relative to subsystem reference frame)
 
ChFrame m_xform
 subsystem frame expressed in the global frame
 

Member Function Documentation

◆ SetEngineTorqueMaps()

void chrono::vehicle::gator::Gator_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]map0engine map at zero throttle
[out]mapFengine map at full throttle

Implements chrono::vehicle::ChSimpleMapPowertrain.

◆ SetShiftPoints()

void chrono::vehicle::gator::Gator_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_bandsdown-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/gator/Gator_SimpleMapPowertrain.h
  • /builds/uwsbel/chrono/src/chrono_models/vehicle/gator/Gator_SimpleMapPowertrain.cpp