51�Թ�

By using current-energized synchronous machine principles, BMW says it can achieve a higher energy density, especially in the rear motor, which in turn allows the automaker to achieve levels of performance it expects out of its 7-series vehicles.

By using current-energized synchronous machine principles, BMW says it can achieve a higher energy density, especially in the rear motor, which in turn allows the automaker to achieve levels of performance it expects out of its M-series vehicles.

Instead, the motors operate on the principle of a “current-energized synchronous machine,” which BMW describes as “the excitation of the rotor is triggered by the precisely metered supply of electrical energy.”