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Smart heating panels to increase thermal comfort and efficiency.

Damian Backes1, Marten Trenktrog1, Lutz Eckstein1

  • 1Institute for Automotive Engineering (ika), RWTH Aachen University, Aachen, Germany.

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|December 18, 2020
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Summary

This study presents a novel radiation heating system for electric vehicles, improving thermal comfort and increasing driving range by 30%. The system optimizes passenger cabin design for efficient, targeted heating, enhancing the electric vehicle experience.

Keywords:
Thermal managementcomfort measurementcomfort simulationthermal comfort

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Area of Science:

  • Automotive Engineering
  • Thermal Management
  • Energy Efficiency

Background:

  • Electrification of vehicles presents challenges for passenger cabin thermal comfort and electric driving range.
  • Conventional electric air heating systems reduce driving range due to high energy consumption.

Purpose of the Study:

  • To achieve rapid cabin heating for thermal comfort and high energy efficiency to maximize electric driving range.
  • To reconcile the conflicting objectives of fast heat-up and energy efficiency in electric vehicle cabins.

Main Methods:

  • Utilized low-temperature radiation heating to reduce energy-intensive cabin air heating.
  • Redesigned the passenger cabin, optimizing the dashboard for targeted heat radiation to passengers.
  • Employed a 2D simplification of complex 3D geometry for computational efficiency in optimization.

Main Results:

  • Developed and integrated a novel radiation heating system into a class A vehicle.
  • Achieved energy savings of approximately 30% compared to conventional methods.
  • Validated the approach through objective thermal comfort measurements and subjective passenger ratings.

Conclusions:

  • The developed approach successfully balances fast thermal comfort with increased energy efficiency.
  • The novel heating system demonstrates promising performance based on objective and subjective evaluations.
  • Optimized cabin design and targeted radiation heating are key to enhancing electric vehicle comfort and range.