General Motors is investigating ways to improve the qualities of axial flux motors and has just patented a system that can be of great help for its future entry-level electric models.
The idea is weaken the magnetic field mechanically so let’s see how it would work:
Broadly speaking, the Axial flux motors are made up of two discs with a space between themwhen the engine is started, they begin to rotate and try to join together by magnetic force, so they must keep separate.
Typically this is carried out through inverter controls that weaken the magnetic field, managing to reduce torque while increasing engine speed, but there is also a loss of energy. However, at Doing it mechanically can eliminate this problem hence GM proposes to carry out this process through a hydraulic system since by means of hydraulic fluids it could be control the distance between the discs of axial flux motors precisely depending on the situation.
Specifically, future GM electric cars would receive the axial flow motor with a hydraulic systembecause the Lower voltage architectures could have enough torque to start and move lighter, more affordable vehicles.
Although it is still an idea in development, it will take several years to reach production but it makes it clear that the Electric cars still have room for improvement and automotive manufacturers have their sights set on them.
