lightimpact 0.1.2

A Python library for calculating Energy Reduction Values (ERVs) of lightweight automotive components in ICVs and EVs

LightImpact

LightImpact is an open-source Python library for calculating the Energy Reduction Value (ERV) of lightweight automotive components applied in both internal combustion vehicles (ICVs) and electric vehicles (EVs), based on WLTP driving cycle data. Developed for life cycle assessment (LCA) modeling in the MM4R research project at RWTH Aachen University.

Features

• Physics-based mechanical work calculation
• WLTP-compliant ERV computation
• Compatible with both ICVs and EVs
• Customizable input parameters
• Suitable for integration into LCA workflows

Installation

git clone https://github.com/suzanaostojic/LightImpact-MM4R.git
cd LightImpact-MM4R
pip install -e .

Example Usage

from lightimpact.core import run_lightimpact_case

custom_params = {
    "m_vehicle": 1800,
    "cw": 0.28,
    "A_frontal": 2.3,
    "ds": 25.0,
    "c_fuel_WLTP": 9.5
}

run_lightimpact_case("WLTP_data/Time-Speed-Profile_WLTP_Class3b.csv", custom_params)

License

Licensed under the MIT License (c) 2025 Suzana Ostojic

About

LightImpact was developed for use within the MM4R research project at the RWTH Aachen University.
Contact: [e-mail] GitHub: github.com/suzanaostojic/LightImpact-MM4R
PyPI: pypi.org/project/lightimpact