Do Electric Cars Have Engines?

[CharlesFitz]

Electric cars do not have engines; they have electric motors. Below is an introduction to electric machines and motors: Electric machine: Generally refers to any machine that can convert mechanical energy into electrical energy or electrical energy into mechanical energy. Specifically, it includes generators, electric machines, and motors. Electric motor: Commonly known as a motor, it is an electrical device that converts electrical energy into mechanical energy and then uses the mechanical energy to generate kinetic energy to drive other equipment. Since electric vehicles use power batteries as their onboard energy source, their capacity is limited. To extend the driving range as much as possible, most drive systems adopt energy feedback technology. This means that during braking, the kinetic energy lost by the wheels is fed back to the battery through a controller, and the motor is placed in a power generation state, sending the generated electricity back to the battery. Therefore, the drive unit of an electric vehicle should be referred to as an electric machine rather than the commonly used term "motor." For example, the dual-stator magnetic suspension composite rotor motor used by Zhongda Qingshan can convert electrical energy into mechanical energy and vice versa.