Vehicle Calibration

Vehicle motion and driving scenarios

The Powertrain Blockset™ includes blocks for 1DOF and 3DOF vehicle motion. The driving scenario blocks allow you to specify a drive cycle and driver commands. Use the vehicle blocks in fuel economy studies and drive cycle analysis.

Blocks

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Vehicle Motion

Vehicle Body 1DOF Longitudinal	Two-axle vehicle in forward and reverse motion
Vehicle Body 3DOF Longitudinal	3DOF rigid vehicle body to calculate longitudinal, vertical, and pitch motion
Vehicle Body Total Road Load	Vehicle motion using coast-down testing coefficients
Motorcycle Chain	Implement motorcycle chain (Since R2021b)
Motorcycle Body Longitudinal In-Plane	Longitudinal in-plane motorcycle vehicle motion (Since R2021b)

Driving Scenarios

Drive Cycle Source	Standard or specified longitudinal drive cycle
Longitudinal Driver	Longitudinal speed-tracking controller

Functions

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MDF File - Reading

`mdfInfo`	Access or create MDF file metadata
`mdfChannelGroupInfo`	Get channel group metadata from MDF file (Since R2023a)
`mdfChannelInfo`	Get channel metadata from MDF file (Since R2023a)
`mdfRead`	Read channel data from MDF file (Since R2023a)
`mdfSaveAttachment`	Save embedded attachment files from MDF file (Since R2023a)
`mdfSort`	Sort MDF file by ASAM standards
`mdfFinalize`	Finalize MDF file by ASAM standards (Since R2021b)
`mdfVisualize`	View channel data from MDF file

MDF File - Writing

`mdfCreate`	Create MDF file with metadata (Since R2022a)
`mdfWrite`	Write timetable data to MDF file (Since R2022a)
`mdfAddChannelGroupMetadata`	Add channel group and channel metadata to timetable (Since R2022a)
`mdfAddAttachment`	Attach file to MDF file (Since R2022a)
`mdfRemoveAttachment`	Remove attachment from MDF file (Since R2022a)

MDF File - Object Interface

`mdf`	(Not recommended) Access information contained in MDF file
`channelList`	(Not recommended) Information on available MDF groups and channels
`read`	(Not recommended) Read channel data from MDF file
`saveAttachment`	(Not recommended) Save attachment from MDF file

MDF Datastore

`mdfDatastore`	Datastore for collection of MDF files
`read`	Read data in MDF datastore
`readall`	Read all data in MDF datastore
`preview`	Subset of data from MDF datastore
`reset`	Reset MDF datastore to initial state
`hasdata`	Determine if data is available to read from MDF datastore
`partition`	Partition MDF datastore
`numpartitions`	Number of partitions for MDF datastore

Topics

Calibrate Mapped CI Engine Using Data
Use the Virtual Vehicle Composer to calibrate mapped CI engines from imported data.
Calibrate Mapped SI Engine Using Data
Use the Virtual Vehicle Composer to calibrate mapped SI engines from imported data.
Calibrate Mapped Electric Motors Using Data
Use the Virtual Vehicle Composer to calibrate mapped electric motors from imported data.
Calibrate Mapped DC-to-DC Converters Using Data
Use the Virtual Vehicle Composer to calibrate mapped DC-to-DC converters from imported data.
Install Drive Cycle Data
Install drive cycle data for the Drive Cycle Source block from a support package.
Resize Engines and Mapped Motors
Resize engines and mapped motors using the Virtual Vehicle Composer app.
Track Drive Cycle Errors
Use the Drive Cycle Source blocks to identify drive cycle faults.

Featured Examples

Build Conventional Vehicle Model

Build a vehicle with an internal combustion engine using the conventional vehicle reference application.