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US 12,756,335 B2Granted
Motor controller module
AssigneeBriggs & Stratton Corporation
InventorsDavid Schulenberg, Jacob Schmalz
Life of this patent
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Abstract
A controller module includes an enclosure including an inner wall defining a volume, a plurality of motor controllers, each motor controller comprising a printed circuit board (PCB) having a first side and a second side opposite the first side, a plurality of transistors located on the first side, and a plurality of outputs located on the second side. The first side of the PCB is positioned adjacent to the inner wall of the enclosure to allow heat generated by the motor controller to dissipate via the enclosure.
Claims8
Outdoor power equipment comprising:
- a left drive motor configured to operate a left drive wheel on a left side of the outdoor power equipment;
- a right drive motor configured to operate a right drive wheel on a right side of the outdoor power equipment;
- a sensor configured to detect an incline of a surface over which the outdoor power equipment is travelling;
- at least one drive motor controller communicatively coupled to the sensor and configured to control the left drive motor and the right drive motor, the at least one drive motor controller configured to:
- receive the detected incline from the sensor;
- determine a roll angle of the outdoor power equipment based on the detected incline;
- and
- operate the left drive motor at a left drive speed and the right drive motor at a right drive speed based on the roll angle;
- and
- a user input device communicatively coupled to the at least one drive motor controller and configured to receive a user input indicating a direction of travel, wherein when the direction of travel is a line and the roll angle exceeds a predetermined threshold, the at least one drive motor controller is configured to operate the left drive motor and the right drive motor such that the left drive speed is different than the right drive speed.
7 more elements
Dependencies are inferred from the claim text.