Electric motors
An electric motor includes one or more separate coil sets arranged to produce a magnetic field of the motor. The electric motor also includes a plurality of control devices coupled to respective sub-sets of coils for current control. A similar arrangement is proposed for a generator. A coil mounting system for an electric motor or generator includes one or more coil teeth for windably receiving a coil for the motor and a back portion for attachably receiving a plurality of the coil teeth. A traction control system and method for a vehicle having a plurality of wheels independently powered by a respective motor. A suspension control system and method for a vehicle having a plurality of wheels, each wheel being mounted on a suspension arm of the vehicle and being independently powered by a respective motor.
1. An electric motor of the type comprising a plurality of coils circumferentially mounted around a stator on teeth and a plurality of magnets mounted on a rotor, wherein the motor includes a cooling plate having channels that are arranged as to cool the coils on three sides, wherein a first channel is provided on a first side of the coils located on a first side of the teeth, a second channel is provided on a second side of the coils located on a second side of the teeth, and a third channel is provided on a third side of the teeth that is adjacent to the first and second sides of the teeth; and
wherein coolant fluid is arranged to flow through the first channel, the second channel and the third channel.
2. The electric motor according to claim 1 , wherein the cooling plate is arranged such that a face opposite the coils can receive control circuitry.
3. The electric motor according to claim 1 , wherein the coils are potted in a thermally conductive material.
4. The electric motor according to claim 3 , wherein the coils are potted onto the cooling plate using a thermally conductive material.