B - Operations – Transporting – 60 – L
Patent
B - Operations, Transporting
60
L
B60L 15/00 (2006.01) B60L 7/02 (2006.01) B60T 8/17 (2006.01)
Patent
CA 2736847
An electric drive system comprises a generator, a traction motor, a brake resistor, a bus, and a control unit. The generator, the traction motor, and the brake resistor are coupled electrically to the bus. The control unit is configured to determine a pulse-width-modulation duty cycle for the brake resistor ("brake duty") and control operation of the brake resistor according to the brake duty, wherein the brake duty can be a value intermediate of constant OFF and constant ON. A method of operating the electric drive system is also disclosed.
Borden Ladner Gervais Llp
Deere & Company
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