Battery operated tracked vehicle
First Claim
1. An electrically powered drive system for an off road vehicle having a pair of endless tracks each driven by an associated sprocket to propel the vehicle over snow, said drive system comprising:
- a single pair of electronically commutated, brushless, permanent magnet, alternating current traction motors, each motor associated with one of the tracks;
a source of direct current electrical voltage carried by the vehicle;
a current controller including electronic switching means converting direct current into alternating current, and means for controlling the alternating current voltage output for application to the motors;
electrical circuit means connecting the direct current electrical voltage source, the current controller and the traction motors, said circuit means including control switching means independently controlling current to each of said motors; and
a single pair of power trains each power trainer connecting one of the motors to the sprocket of its associated endless track.
6 Assignments
0 Petitions
Accused Products
Abstract
A tracked vehicle (10) propelled by a pair of direct current electric motors (35) operating through a power train to a pair of endless tracks (11). Each power train operates a track drive sprocket (14) through a state of the art torque hub. Electric energy is applied to the motors from a battery pack (13) carried by the vehicle, acting in conjunction with a power control and distribution unit which directs the electrical energy from the batteries as needed. Braking of forward motion of the vehicle is accomplished in part by regenerative use of the motors, each as a generator feeding electricity back to the battery pack and consequently braking the vehicle'"'"'s motion by the resistance of rotation of the armature rotor.
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Citations
5 Claims
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1. An electrically powered drive system for an off road vehicle having a pair of endless tracks each driven by an associated sprocket to propel the vehicle over snow, said drive system comprising:
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a single pair of electronically commutated, brushless, permanent magnet, alternating current traction motors, each motor associated with one of the tracks; a source of direct current electrical voltage carried by the vehicle; a current controller including electronic switching means converting direct current into alternating current, and means for controlling the alternating current voltage output for application to the motors; electrical circuit means connecting the direct current electrical voltage source, the current controller and the traction motors, said circuit means including control switching means independently controlling current to each of said motors; and a single pair of power trains each power trainer connecting one of the motors to the sprocket of its associated endless track. - View Dependent Claims (2, 3, 4, 5)
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Specification