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Electric Club Car Electric DS, and Precedent golf cars |
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04-21-2015, 04:18 PM | #1 |
Gone Wild
Join Date: Apr 2015
Location: NorCal
Posts: 708
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Delay timer relay?
Stock 2010 CC Precedent i2 Excel
Wanting to add a power converter for my 12v lights, music, TPMS, etc. I'm on and off the cart a lot for a few minutes at a time and sometimes walk away and leave it for hours. I would like everything to stay hot at least for 5-10 minutes after I stop and shut off after that in case I forget to do so. I am thinking of a timer relay that keeps the system alive but is there a wire in the harness that I can tap for a signal which will trigger the timer when the throttle is depressed? Also, can anyone recommend a good 48v timer relay? Thanks. Greg |
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04-21-2015, 06:36 PM | #2 |
Gone Wild
Join Date: Aug 2009
Posts: 14,245
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Re: Delay timer relay?
Hmmm, I know they make timer kits for brake lights, but I think they are 12v...
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04-21-2015, 11:43 PM | #3 |
Gone Wild
Join Date: Apr 2015
Location: NorCal
Posts: 708
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Re: Delay timer relay?
Might have to search the industrial stuff
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04-22-2015, 12:15 AM | #4 |
Gone Wild
Join Date: Apr 2015
Location: NorCal
Posts: 708
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Re: Delay timer relay?
I know I can build one with a couple diodes, capacitor and a POT but I still need to know if there is a signal wire I can use in the harness someplace that changes state when the accelerator is depressed or when the cart moves.
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04-22-2015, 01:04 PM | #5 |
Gone Wild
Join Date: Sep 2012
Location: Charlotte, NC
Posts: 9,329
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Re: Delay timer relay?
This was an interesting problem the more I thought about it...
Resistors and Capacitors (RC network) alone cannot provide more than a few seconds delay at the most. If the key switch is still ON, it would be tricky to reset the system regardless of input from the cart being moved. I don't think it is a good idea to use either the MCOR switch of the solenoid activation for the risk of damaging the controller. I also think it is unsafe to walk away from the cart and leave the key Switch ON, children or pets can simply press the accelerator and the cart would move. You also mentioned using a Radio, so there would be a need for a Constant +12v and a switched +12v circuit for the Radio to retain settings. I mentally played with a few options and using inexpensive off the shelf parts, this is what I came up with that addresses both the "Delayed Off" and provides constant and switched +12v outputs. The total cost should be around $30. This is the +48v SPDT relay I like to use($5): http://www.mouser.com/ProductDetail/...B5DD7rD9zDs%3d Timer Delay Relay board I found on Amazon ( 01.s to 1 hour delay) ($8.60 Make sure You select the one Sold By Amazon - not the one from china)
Amazon.com: Geree DC 12V Delay Relay Delay Turn On / Turn Off Switch Module with Timer: Home Improvement
The 12v relay is any bosch type relay SPST ot SPDT. The 1n4004 or 1n4007 diodes are around 10 cents each. The ON/OFF switch to the right of R2 controls whether the switched +12v goes off immediately after the Key Switch (KSI) is turned off or after the delay set by the timer delay relay (RD). It functions as follows: The timer delay relay is always closed (NC), once power is applied to it, it will open the contacts after the pre-defined delay, which is adjustable from 0.1 to 3700 seconds (over 1 hour). With Timer Delay Switch OFF: KSI Closes and powers R1.With Timer Delay Switch ON. KSI Closes and powers R1.Well this was fun, but I have to get back to work now... |
04-22-2015, 08:15 PM | #6 |
Gone Wild
Join Date: Apr 2015
Location: NorCal
Posts: 708
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Re: Delay timer relay?
WOW! That was a very well thought out device! Thanks for that but a lot more complicated for my needs.
I do not need 12v constant for the radio. It is a Jensen MS30BT that absolutely requires a switched 12v. As far as safety, kids, pets, etc., think of how carts are used in their primary intended purpose; golf! We get in and out of the seat for 5-10 minutes at a time and never turn off the key. I'm not saying I want the radio playing while I'm on the course but this is exactly how I will be using it. I know for sure that with some combination of capacitor, potentiometer and low milliamp draw relay (or two in series) can get me several minutes of standby power. The problem is how to trigger it automatically as I drive. |
04-22-2015, 08:20 PM | #7 |
Gone Wild
Join Date: Apr 2015
Location: NorCal
Posts: 708
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Re: Delay timer relay?
Oh, what about a hall effect sensor? Now where can I find one rated for 48v?
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04-22-2015, 08:21 PM | #8 |
Old Sky Soldier
Join Date: Dec 2011
Location: Kentucky
Posts: 3,881
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Re: Delay timer relay?
Why not just use a seat switch. When on the drivers seat everything works normal. Get off to go to green or tee box it goes off. Get back on seat and it all turns back on. Run neg wires of things you want on / off through seat switch. I have my fan and lights on mine.
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04-22-2015, 08:23 PM | #9 | |
Gone Wild
Join Date: Apr 2015
Location: NorCal
Posts: 708
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Re: Delay timer relay?
Quote:
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04-22-2015, 08:25 PM | #10 |
Gone Wild
Join Date: Jun 2014
Location: Sunset Bay, TN
Posts: 2,390
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Re: Delay timer relay?
Here is a page full of timing relays that can accept a wide range of AC/DC voltage http://www.mcmaster.com/#timing-relays/=wvbi44
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