autoevolution 22 May 2021, 8:30 UTC · by 1 photo Nowadays, if you own a car that uses a combustion engine, it is easy to know when it is time for maintenance procedures, such as changing the oil, because these vehicles are now equipped with special sensors that save you a lot of trouble. Unfortunately, that’s not the case with electric motors, which wear out just the same, but it’s harder to determine when they’re about to fail. Scientists from the Martin Luther University Halle-Wittenberg in Germany have partnered with ELANTAS, a company that specializes in insulating materials, to come up with a solution to this problem.