State of health is a crucial factor in determining the value of a traction battery
Fast battery test for electric vehicles: DEKRA already serving corporate customers
The expert organization DEKRA has entered the market with a new fast battery test for corporate customers in Germany. The patented process has been validated by RWTH Aachen University and also through tests with various vehicle manufacturers. As a rule, the actual test takes no more than fifteen minutes to provide an accurate value for the state of health (SoH) of a traction battery. “As the battery accounts for a large proportion of an electric vehicle’s total value, the SoH of a pre-owned vehicle is a decisive valuing factor,” says Ulrike Hetzel, Member of the Board of Management and Chief Technology Officer at DEKRA.
- Patented process delivers accurate results within 15 minutes
- 50 models can currently be tested – likely to reach 100 by the end of 2022
- Initial target group comprises leasing companies and large car dealerships
The essential know-how, however, lies in the ability to interpret the measured values. “The process is backed up by a highly sophisticated database and an extremely complex algorithm,” says the DEKRA Board Member. “The core data is determined in advance for each individual vehicle type, based on test drives under a wide range of conditions. This is followed by structuring and further complex computations, partly with the help of artificial intelligence. We call this entire process ‘parameterization’. In the test, the results of the measurement are evaluated based on these type-specific parameters.”
At present, the list of types for which DEKRA can offer a fast test comprises more than 50 vehicle models. They include volume models from various German and other European manufacturers (VW, Mercedes-Benz, BMW, Renault), but also, for example, Asian makes (Kia, Hyundai). “We currently cover around one third of all vehicles in Germany that are powered by batteries or hybrid engines, and we are continually parameterizing further models,” says Ulrike Hetzel. “By the end of the year, we want to have the relevant data material for another 50 vehicle types, so we’ll be covering more than half of all vehicles in Germany.”