Kill Switch

[fishin bob]

Hi. I'd like to build a remote kill switch for my Kangaroo electric golf cart. It's a 12v lithium ion system. Although I don't mind guiding it as I walk behind, I'd like to be able send it on its way and stop it if it gets off track or to far down the fairway. Any help would be greatly appreciated

 

[KMoffett]

Get one that has a remote control.
http://www.ebay.com/bhp/remote-control-golf-cart

A cheap wirelese remote would work for start/stop. But, in order to stop if out of range, it would need to be continuously communicating (hearing) with the remote.
http://www.ebay.com/bhp/remote-control-golf-cart
Ken

 

[Bluejets]

The 30cc class of r/c cars use a kill switch as mandatory equipment. Add some means of getting control over it, say one of the garage door remote/ receiver with a relay output, add to that a basic servo driver for maybe $4.00 Arrange the relay to operate as a shunt over part of a voltage divider in the servo driver to simulate a high or low signal.....done. Alternatively, just use the relay in the kill circuit

 

[fishin bob]

Get one that has a remote control.
http://www.ebay.com/bhp/remote-control-golf-cart

A cheap wirelese remote would work for start/stop. But, in order to stop if out of range, it would need to be continuously communicating (hearing) with the remote.
Ken

Thanks Ken but the Kangaroo works just fine.
Got it used for $300 with a new battery. It'll last as long as I do!
I'll require some kind of an interrupt relay with a receiver that matches the transmitter frequency. That's kind of what I am thinking anyway. I'd wire the relay between battery and unit so when I hit the switch it'll turn off and stay off until I reset it, either via the remote unit or switch on the relay. I'm new at this, so let me know if that sounds logical. Thanks

 

[fishin bob]

The 30cc class of r/c cars use a kill switch as mandatory equipment. Add some means of getting control over it, say one of the garage door remote/ receiver with a relay output, add to that a basic servo driver for maybe $4.00 Arrange the relay to operate as a shunt over part of a voltage divider in the servo driver to simulate a high or low signal.....done. Alternatively, just use the relay in the kill circuit

Thanks Bluejets but you lost me at shunt over part of a voltage divider.
I'll require some kind of an interrupt relay with a receiver that matches the transmitter frequency. That's kind of what I am thinking anyway. I'd wire the relay between battery and unit so when I hit the switch it'll turn off and stay off until I reset it, either via the remote unit or switch on the relay. I'm new at this, so let me know if that sounds logical. Thanks

 

[Bluejets]

ok...alternative arrangement...simple

Get one of these from Ebay....... check as you may need the 12vdc unit and this one is 220v ac

http://www.ebay.com.au/itm/262688614486?_trksid=p2055119.m1438.l2649&ssPageName=STRK:MEBIDX:IT

Depending on what your loading is, switch with the enclosed relay. If this relay is insufficient for your load then switch a contactor coil with this enclosed relay and switch your load with the contactor.

.

 

[fishin bob]

Thanks again Bluejets. You'd think you could find one of these things in the US. I did opt for the 12V 10A which seemed to be the highest amperage I could find. I'm not sure what the load might be going from stop to half throttle, but we'll soon see. I plan to install it in line with one of the battery leads.