Patent ID: 11872978
Assignee: CUMMINS INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC B  H  Y | IPC B  H

Claim 14:
15. An electric vehicle system comprising:
an electric vehicle comprising:
an electric motor switchable between a first mode with a first number of poles and a second mode with a second number of poles less than the first number of poles,
a plurality of inverters coupled to the electric motor, and
a controller coupled to the plurality of inverters, the controller configured to perform a mode switch by controlling operation of the plurality of inverters; and

a transportation management system coupled to the controller of the electric vehicle, the transportation management system configured to:
receive current vehicle information and lookahead information;
determine, based on the current vehicle information and the lookahead information, that a mode switch is required between the first and second modes of the electric motor, wherein the first mode achieves higher torque than the second mode; and
instruct the controller to perform the mode switch based on the determination that the mode switch is required, such that:
(a) in the first mode, each physical pole in the plurality of inverters is configured to operate as a single magnetic pole, and
(b) in the second mode, each pair of neighboring physical poles in the plurality of inverters with a same polarity is configured to operate as the single magnetic pole.