7. Comparison with cars with internal combustion engine

Efficiency
  • Electric drives are highly efficient compared to drives with internal combustion engines.
  • Diesel engine: max. 42%
  • Petrol engine: max. 35%
  • Electric drive: 75 - 92% in wide operation range

Diesel and petrol engine efficiency maps


Electric motor efficiency maps


  • Electric drives have a rated torque from zero speed.
  • Electric motors can be overloaded for a limited time and thus significantly increase the maximum torque.
  • The overload time depends on the warming time (windings, magnets).
  • Air-cooled motors of the order of seconds, water-cooled motors of the order of tens of seconds.







Comparison of traction characteristics




https://community.dieselschrauber.org
de.wikipedia.org
hybridautos.info
https://www.gutefrage.net
https://monceau-automobiles.com