A well-designed e-axle maximises a vehicle’s power efficiency and acceleration and helps extend its driving range and its smoothness. The miniature motors that make iPhones buzz on silent helped power Japan’s Nidec to become a 1.5-trillion-yen ($14 billion) company. In recent years, Nidec’s founder Shigenobu Nagamori has turned his attention to autos, and a technology […]