So you will adapt the breaker with a mechanical connection to the clutch
cable?
Breaker ON - clutch cable tight
Breaker OFF - clutch cable loose
Not a bad idea. The breaker still does its job is needed and provides the
"smoking disconnect" aspect of "The Big Red Button."
A minor point to consider with a keyed contactor is power consumption of the
contactor coil. Power management and vehicle weight are the two disciplines
that make or break EV/EM performance. Ideally the contactor wouldn't
energize until you commanded motor operation.
On the previously mentioned mobile x-ray unit, we didn't pull in a contactor
until the driver squeezed the throttle. This point was just prior to any
modulation of the speed control electronics. BTW I never had to work on the
PWM electronics. No blown FETs. Battery life was the biggest problem with
that machine.
I both rue and lament not being interested in EMs at the time I was working
on that unit. When it was scrapped, it would have been an ideal parts cow
for an EM. There are a couple still around the area that I definitely will
watch for the end-of-life announcement
----- Original Message -----
From: "Mike" <[EMAIL PROTECTED]>
To: "ElectricMotorcycles" <[email protected]>
Sent: Sunday, March 25, 2007 1:21 PM
Subject: Re: [ElectricMotorcycles] eBay: Airpax 150 Amp 80 Volt DCCircuit
Breaker
Here's what I was thinking:
Running the clutch cable to the breaker to act as an "oh sh*t" device in
addition to the fuse and a main contactor being controlled by both the
keyswitch and on/off switch on the right grip.
Thoughts?
