Patent ID: 8988025
Filing Date: 2015-03-24
Classification: F02D,F04B,H02P

Abstract:
1. A system for controlling a brushless motor comprising: drive circuitry in communication with the brushless motor; an electronic control module configured to provide an enable signal for the brushless motor; a primary control device in communication with the drive circuitry and the electronic control module; a secondary control device in communication with the drive circuitry and the electronic control module; and a multiplexer for selectively providing an output of the primary control device or an output of the secondary control device to the drive circuitry, wherein an output of the secondary control device is provided to the drive circuitry to initialize the brushless motor and bring the brushless motor to a desired speed and wherein upon the brushless motor reaching the desired speed the output of the primary control device is provided to the drive circuitry when-so long as the primary control device is operating normally, wherein the secondary control device is comprised of rudimentary circuitry, an ASIC, a FPGA or a micro controller, which is configured to operate the brushless motor at an approximately constant speed that is equal to the desired speed.