Work vehicle

This is a work vehicle, like a lawnmower or tractor, that uses separate electric motors for its wheels and for its working parts (e.g., cutting blades). It has a special mode where the speed of the working parts automatically increases as the vehicle's driving speed increases, ensuring efficient operation. An operator can turn this mode on or off, and the vehicle's speed is calculated from the rotation of the driving motor.

Why it matters: Filed before widespread adoption of high-density batteries and advanced motor control systems made all-electric work vehicles more practical. The cost and performance of electric motors and controllers have improved significantly since 2013.

Status: Not in forceListed as no longer active. The specific reason is not in the record we hold.
How hard to build: ModerateElectric motors, sensors, control software

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