Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Project: The Electric Booger (budget EV conversion - '92 Mazda MX-3)

mechman600 · 03-02-2013, 12:23 AM

The whine your hear is actually caused by the controller. Some controllers whine more than others. My Alltrax is absolutely silent. The whining noise is coming from the motor (I think) but the controller is the culprit, due to the PWM frequency.

EDIT: Good to know about the Kelly. It might not be a bad option then.

03-02-2013, 12:23 AM	#154 (permalink)
mechman600 Master EcoModder Join Date: Jul 2008 Location: Langley, BC Posts: 1,228 Fusion - '16 Ford Fusion Hybrid SE Thanks: 190 Thanked 275 Times in 168 Posts	The whine your hear is actually caused by the controller. Some controllers whine more than others. My Alltrax is absolutely silent. The whining noise is coming from the motor (I think) but the controller is the culprit, due to the PWM frequency. EDIT: Good to know about the Kelly. It might not be a bad option then. __________________ https://www.youtube.com/@that_jamesguy Last edited by mechman600; 03-02-2013 at 03:45 PM..