Ranger EV with Mattracks
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Uploaded by AUGavlab on Jul 26, 2011
A Polaris Ranger EV was outfitted with Mattracks and evaluated. The tracks became easier to install as we went along. It took about 45 minutes to install the last one. The tracks lift the vehicle about 3 inches or so. The tracks appear to increase stability giving the driver more confidence over rough and aggressive terrain the than standard wheel. With tracks the EV has more understeer, the front pushes out during turning; for a given turn/path an understeer vehicle while require more steer angle in comparison to the same turn taken by a vehicle with neutral steer. Overall the Mattracks are impressive.
More info at: http://www.davidwhodo.com/projects/polaris-ev-platform/
Uploader Comments (AUGavlab)
All Comments (8)
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why exactly did u get one that ran on battery. the engine models are more suited to the needs and demands of a utv than an electric one.
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awesome
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Would these be strong enough to hold my Subaru Impreza?
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I'm sure that driving over the dirt mounds were an integral part of the research process. :p
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Thanks for publishing this video. I've been working with Mattracks and Polaris trying to put together exactly the same solution, but nobody was sure what it would be like.
If you would, please provide whatever observations or measurements you've made on performance changes (battery life, climbing, top speed, etc.) Thanks!
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Mattracks makes several models of their tracks for a variety of vehicles. I would contact them about your Impreza needs. Often it is brackets etc that need to be designed for each vehicle they put them on.
AUGavlab 2 weeks ago
Driving over the dirt mounds were indeed integral! We were nervous at first; that's why the vehicle backs up and turns left on first attempt.
AUGavlab 2 weeks ago
The top speed was reduced. We don't remember by exactly how much it was a noticeable decrease though. The vehicle feels 2 - 3 times more capable and more stable with tracks on. Battery life was decreased but our time measurement may have been off because of a locked brake actuator. Due to no coasting capabilities with tracks I would expect battery life to decrease. We will have to test again for more accurate measurement.
AUGavlab 2 weeks ago