The influence of NEDC and CATC type approval test procedure on the E-range of battery electric vehicles

Abstract

Electric range is an important indicator of battery electric vehicles. China has been testing the range of battery electric vehicles in accordance with national standard GB/T 18386-2017 in the past until the new version of GB/T 18386 standard released in 2021. This paper compares the differences between the new and old versions of GB/T 18386, and analyzes the influence of electric range under NEDC and CATC test procedure. The results show that adopting to CATC, the range increase slightly, with an average increase of 2.20%. The simplification of the test procedure results in a significant reduction in the net test duration, with the reduction of 67.78% for the tested vehicle, while the test results are basically unaffected, only with an average increase of 0.60%.

Keywords

• Battery electric vehicle
• China automotive test cycle
• E-range