Idle up?

[Noidea]

There is an idle up kit available for the Hilux overseas but it's a little bit different to the old hand throttles. It's used on police and armoured vehicles which need higher revs and larger alternators for running electrical equipment. It is spliced into the throttle and works by converting the throttle signal depending on battery voltage. When the battery voltage drops below 13V, the idle up kicks in and raises the revs to 1800RPM. The main downside is the vehicle has to be in park for the idle up to work (Safety measure to comply with international standards) which means it cannot be used for hill climbs and crawling.

We should have a test unit arriving here in the next couple of months. I'm not sure on its suitability for off road vehicles but the kit has been thoroughly tested overseas and works well on service and emergency vehicles.

Hey Brendan you had a chance to play around with this kit yet??? Im very interested in getting something like this happening as I can think of lots of ways it would be useful. You say it can only be used in 'park' but what about for manual vehicles?? It surely would be easy to ground such a wire out and have it available to use all the time. Just like the handbrake wire on dvd screens

[ultimate]

We haven't had a chance to get one in yet. Ken put the order on hold until after a couple of the big trade shows we have on overseas. Once he is back, we will get the unit in and have a play

[Mal.W]

I think the idle up turns off when the vehicle is moving. I put my foot on the clutch with the car rolling and the revs went back down to idle speed. when the car stopped the revs picked up again. so I don't think it would be any good for increasing revs for hill climbs etc, but would be handy for winching, better than nothing

cheers

Mal

[Nick#]

On a tilt tray fuso turck i worked on the other day, it has a seperate knob that allows the driver to adjust the idle up and down. it can adjust from idle to 3000 or so rpm

Most trucks will have this. Cant you just wind the screw up on the pump? Is there even a screw on the pump on electronic engines?
I dont play with anything older than 2005(the trucks we run)

[kyle300exc]

I looked at this some time ago but it all went into the too hard basket. Even if the vehile power up button is altered Im told the computer will become aware the vehicle is not moving and go into limp mode. Brendan seems to have the only option so far but as he stated the vehicle is supposed to be stationary. This is what I found out viewtopic.php?f=11&t=10136&p=137115#p137115

[Noidea]

I wonder if something simpler could work. A plug straight into the throttle under the dash with a constant voltage output when you flick a switch??

[Qwerty]

I find switching the ac compressor on kicks the revs up a little. Not a lot but enough to spin a few more amps out<br />Of the alty anyway.

[Earl-mi]

I wonder if something simpler could work. A plug straight into the throttle under the dash with a constant voltage output when you flick a switch??

Yeah I agree. Surely some one can figure it out. Haha. Won't be me that's for sure. Haha

Mitchy

[StevenS]

I've looked at the wiring diagrams and I don't believe it will be too difficult at all (I'm a bit of a tech head with this kind of stuff)
I'm a bit snowed under getting my new tray finished etc but hopefully I'll have a chance in a week or 2 to have a closer look

[Noidea]

I've looked at the wiring diagrams and I don't believe it will be too difficult at all (I'm a bit of a tech head with this kind of stuff)
I'm a bit snowed under getting my new tray finished etc but hopefully I'll have a chance in a week or 2 to have a closer look

I will be watching with keen eyes

[Qwerty]

Steven there's a few lads here offering first borns, cartons , nights with the gf, etc ....

[Noidea]

Steven there's a few lads here offering first borns, cartons , nights with the gf, etc ....

All of the above

[kyle300exc]

I think the idle up turns off when the vehicle is moving. I put my foot on the clutch with the car rolling and the revs went back down to idle speed. when the car stopped the revs picked up again. so I don't think it would be any good for increasing revs for hill climbs etc, but would be handy for winching, better than nothing

cheers

Mal

Mal I think you talking about the power heat button which does increase idle for warm up purposes only and automatically cuts out when your engine has reached a predetermined temperature.
I took a idle control out of an 80 series Cruiser with the intensions of designing a way to incorporate it into the Lux and pressing directly onto the accelerator. I just didnt get around to going any futher with it.

[Qwerty]

Idle up canceling once moving would be a moot issue , the car is moving and in gear so revs will be up anyway.

Unless we're talking about down hills in neutral idling ?

For me it's idling literally stopped alternator has no balls, with bit of load on the alternator , start getting a discharge scenario (well may).

[Jengel]

Is the foot accelerator a variable voltage signal like from say 0 to 5 volts or an encoder type signal? If it is variable voltage a dual gang potentiometer (like a stereo volume variable resistor) will do. By using a 2 pole relay with changover contacts, the voltage out from footpedal can be disconnected and wipers of dual gang pot be connected to the ECU. Supplies can be picked up from the reference at the foot pedal controller. Something like a 5 to 10k pot will be very low loading on the circuit. To activate the hand throttle, you switch the relay in and adjust the hand throttle pot to the engine rpm required. Switch off the relay and you are back to the pedal. You can make the relay to be pulsed on and switch off by the brake pedal light switch. You could also use diodes in the variable output signals but the 0.6V drop will cause some dead band in the foot pedal. When I have some time I'll test and try it.
Johan

[kyle300exc]

WTF thanks Professor

[MarkYounger]

Yes very insightful Dr. Jengel

[Noidea]

Wheres the bowing down smilie????

[StevenS]

It will depends on whether there is a constant voltage being fed through the pedal assembly even with your foot off the accelerator, which there probably is as a means to check the circuit is complete. In such a case, even in the split second it takes for the relay to switch over the ECU might throw an error code.

If you wire in the POT in parallel by use the same feed voltage in the pedal assembly itself, then you can pseudo change the minimum throttle setting. This shouldn't cause any issues, my only consideration would make sure the POT was of a correct max resistance so even with it turned all the way the revs will only increase to around 1500rpm - you really shouldn't ever need to set your idle any higher than that.

[Noidea]

What about a make before break relay??