# FASTSim
<img src="https://raw.githubusercontent.com/NREL/fastsim/refs/heads/fastsim-2/docs/assets/fastsim-icon.svg" height="200">
[](https://www.nrel.gov/transportation/fastsim.html) [](https://github.com/NREL/fastsim/actions/workflows/tests.yaml) [](https://github.com/NREL/fastsim/actions/workflows/wheels.yaml?event=release) [](https://pypi.org/project/fastsim/) [](https://nrel.github.io/fastsim/) [](https://github.com/NREL/fastsim)
## Description
This is the python/rust flavor of [NREL's FASTSim<sup>TM</sup>](https://www.nrel.gov/transportation/fastsim.html), which is based on the original Excel implementation. Effort will be made to keep the core methodology between this software and the Excel flavor in line with one another.
All classes and methods are self-documented.
## Installation
### Python
Set up and activate a python environment (compatible with Python 3.8 - 3.10; we recommend Python 3.10) with the following steps.
#### [Anaconda](https://www.anaconda.com/)
1. Create: `conda create -n fastsim python=3.10`
1. Activate: `conda activate fastsim`
#### [venv](https://docs.python.org/3/library/venv.html)
There is some variation based on your Operating System:
- PowerShell (windows):
1. Create: `python -m venv fastsim-venv` -- name is user decision
1. Activate: `fastsim-venv/Scripts/Activate.ps1`
- Bash (i.e. unix/linux/mac):
1. Create: `python -m venv fastsim-venv` -- name is user decision
1. Activate: `source fastsim-venv/bin/activate`
- Command Prompt (windows):
1. Create: `python -m venv fastsim-venv` -- name is user decision
1. Activate: `fastsim-venv/Scripts/activate.bat`
### FASTSim
#### Via PyPI
In an active Python environment created above, run `pip install fastsim`.
#### Building from Scratch
Developers might want to install the code in place so that FASTSim files can be editable (the `-e` flag for pip provides this behavior). This option can be handy since FASTSim will be installed in place from the installation location and any updates will be propagated each time FASTSim is freshly imported. To do this, you'll need to have the [Rust toolchain](https://www.rust-lang.org/tools/install) installed.
- Option 1: run `sh build_and_test.sh` in root folder.
- Option 2:
1. Run `pip install -e ".[dev]"`
Optional testing steps:
1. Run `cd rust/ && cargo test`
1. Run `pytest -v python/fastsim/tests/`
## Usage
To see and run examples, download the FASTSim demo files using the following code (with your Python environment activated and FASTSim installed):
```python
from fastsim import utils
utils.copy_demo_files()
```
This code downloads demo files into a specified local directory (if no directory is specified, it will create a `\demos` folder in the current working directory). WARNING: If you download the demo files to a location where files of the same name already exist, the original files will be overwritten.
## Adding FASTSim as a Dependency in Rust
### Via GitHub
Add this line:
```
fastsim-core = { git = "https://github.com/NREL/fastsim/", branch = "fastsim-2" }
```
to your Cargo.toml file, modifying the `branch` key as appropriate.
### Via Cargo
FASTSim is [available as a Rust crate](https://crates.io/crates/fastsim-core), which can be added to your dependencies via the following command:
```
cargo add fastsim-core
```
## List of Abbreviations
cur = current time step
prev = previous time step
cyc = drive cycle
secs = seconds
mps = meters per second
mph = miles per hour
kw = kilowatts, unit of power
kwh = kilowatt-hour, unit of energy
kg = kilograms, unit of mass
max = maximum
min = minimum
avg = average
fs = fuel storage (eg. gasoline/diesel tank, pressurized hydrogen tank)
fc = fuel converter (eg. internal combustion engine, fuel cell)
mc = electric motor/generator and controller
ess = energy storage system (eg. high voltage traction battery)
chg = charging of a component
dis = discharging of a component
lim = limit of a component
regen = associated with regenerative braking
des = desired value
ach = achieved value
in = component input
out = component output
## Contributors
Chad Baker -- <Chad.Baker@nrel.gov>
Aaron Brooker -- <Aaron.Brooker@nrel.gov>
Kyle Carow -- <Kyle.Carow@nrel.gov>
Robin Steuteville -- <Robin.Steuteville@nrel.gov>
Jeffrey Gonder -- <Jeff.Gonder@nrel.gov>
Jacob Holden -- <Jacob.Holden@nrel.gov>
Jinghu Hu -- <Jinghu.Hu@nrel.gov>
Jason Lustbader -- <Jason.Lustbader@nrel.gov>
Sean Lopp -- <sean@rstudio.com>
Matthew Moniot -- <Matthew.Moniot@nrel.gov>
Grant Payne -- <Grant.Payne@nrel.gov>
Laurie Ramroth -- <lramroth@ford.com>
Eric Wood -- <Eric.Wood@nrel.gov>
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"description": "# FASTSim\n\n<img src=\"https://raw.githubusercontent.com/NREL/fastsim/refs/heads/fastsim-2/docs/assets/fastsim-icon.svg\" height=\"200\">\n\n[](https://www.nrel.gov/transportation/fastsim.html) [](https://github.com/NREL/fastsim/actions/workflows/tests.yaml) [](https://github.com/NREL/fastsim/actions/workflows/wheels.yaml?event=release) [](https://pypi.org/project/fastsim/) [](https://nrel.github.io/fastsim/) [](https://github.com/NREL/fastsim)\n\n## Description\n\nThis is the python/rust flavor of [NREL's FASTSim<sup>TM</sup>](https://www.nrel.gov/transportation/fastsim.html), which is based on the original Excel implementation. Effort will be made to keep the core methodology between this software and the Excel flavor in line with one another.\n\nAll classes and methods are self-documented. \n\n## Installation\n\n### Python\n\nSet up and activate a python environment (compatible with Python 3.8 - 3.10; we recommend Python 3.10) with the following steps.\n\n#### [Anaconda](https://www.anaconda.com/)\n\n1. Create: `conda create -n fastsim python=3.10`\n1. Activate: `conda activate fastsim`\n\n#### [venv](https://docs.python.org/3/library/venv.html)\n\nThere is some variation based on your Operating System: \n\n- PowerShell (windows):\n 1. Create: `python -m venv fastsim-venv` -- name is user decision\n 1. Activate: `fastsim-venv/Scripts/Activate.ps1`\n\n- Bash (i.e. unix/linux/mac):\n 1. Create: `python -m venv fastsim-venv` -- name is user decision\n 1. Activate: `source fastsim-venv/bin/activate`\n\n- Command Prompt (windows):\n 1. Create: `python -m venv fastsim-venv` -- name is user decision\n 1. Activate: `fastsim-venv/Scripts/activate.bat`\n\n### FASTSim\n\n#### Via PyPI\n\nIn an active Python environment created above, run `pip install fastsim`.\n\n#### Building from Scratch\n\nDevelopers might want to install the code in place so that FASTSim files can be editable (the `-e` flag for pip provides this behavior). This option can be handy since FASTSim will be installed in place from the installation location and any updates will be propagated each time FASTSim is freshly imported. To do this, you'll need to have the [Rust toolchain](https://www.rust-lang.org/tools/install) installed.\n\n- Option 1: run `sh build_and_test.sh` in root folder. \n- Option 2: \n 1. Run `pip install -e \".[dev]\"` \n Optional testing steps:\n 1. Run `cd rust/ && cargo test`\n 1. Run `pytest -v python/fastsim/tests/`\n\n## Usage\n\nTo see and run examples, download the FASTSim demo files using the following code (with your Python environment activated and FASTSim installed):\n```python\nfrom fastsim import utils \nutils.copy_demo_files()\n```\nThis code downloads demo files into a specified local directory (if no directory is specified, it will create a `\\demos` folder in the current working directory). WARNING: If you download the demo files to a location where files of the same name already exist, the original files will be overwritten. \n\n## Adding FASTSim as a Dependency in Rust\n\n### Via GitHub\n\nAdd this line:\n\n```\nfastsim-core = { git = \"https://github.com/NREL/fastsim/\", branch = \"fastsim-2\" }\n```\n\nto your Cargo.toml file, modifying the `branch` key as appropriate. \n\n### Via Cargo\n\nFASTSim is [available as a Rust crate](https://crates.io/crates/fastsim-core), which can be added to your dependencies via the following command:\n\n```\ncargo add fastsim-core\n```\n\n## List of Abbreviations\n\ncur = current time step \nprev = previous time step \ncyc = drive cycle \nsecs = seconds \nmps = meters per second \nmph = miles per hour \nkw = kilowatts, unit of power \nkwh = kilowatt-hour, unit of energy \nkg = kilograms, unit of mass \nmax = maximum \nmin = minimum \navg = average \nfs = fuel storage (eg. gasoline/diesel tank, pressurized hydrogen tank) \nfc = fuel converter (eg. internal combustion engine, fuel cell) \nmc = electric motor/generator and controller \ness = energy storage system (eg. high voltage traction battery) \nchg = charging of a component \ndis = discharging of a component \nlim = limit of a component \nregen = associated with regenerative braking \ndes = desired value \nach = achieved value \nin = component input \nout = component output \n\n## Contributors \n\nChad Baker -- <Chad.Baker@nrel.gov> \nAaron Brooker -- <Aaron.Brooker@nrel.gov> \nKyle Carow -- <Kyle.Carow@nrel.gov> \nRobin Steuteville -- <Robin.Steuteville@nrel.gov> \nJeffrey Gonder -- <Jeff.Gonder@nrel.gov> \nJacob Holden -- <Jacob.Holden@nrel.gov> \nJinghu Hu -- <Jinghu.Hu@nrel.gov> \nJason Lustbader -- <Jason.Lustbader@nrel.gov> \nSean Lopp -- <sean@rstudio.com> \nMatthew Moniot -- <Matthew.Moniot@nrel.gov> \nGrant Payne -- <Grant.Payne@nrel.gov> \nLaurie Ramroth -- <lramroth@ford.com> \nEric Wood -- <Eric.Wood@nrel.gov> \n\n",
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