[928uk] FW: [Fwd: Re: Fwd: Re: PSD operation] & Tyre pressures]]

[Michael Parris]

I believe the method to disable the RDK system is put a wire link from connector pin 2 to 13, so all you should need is a switch on that wire, open = system monitoring and closed = bypassed.  No resistor needed.
As Smiffy says, they are off or on and I presume that is on or off from the sensor itself so there is no way to alter the pressure sense unless you change the sensors in the wheel?

Mike

 


> From: Mark.Nichols at eltek-semi.com
> To: sylvan309 at gmail.com
> Date: Thu, 9 Feb 2012 14:39:40 +0000
> CC: 928uk at lists.928.org.uk
> Subject: Re: [928uk] FW: [Fwd: Re: Fwd: Re: PSD operation] & Tyre pressures]]
> 
> From what I understand that would probably work and would still be useful. I like the TPM. I have slow leaks in both fronts since new tyres fitted. Either not sealed properly around bead or the TPM sensors are leaking....Would be great to be able to dial in a trigger pressure though! 
> 
> Cheers
> 
> 
> Mark Nichols 
> 
> -----Original Message-----
> From: Allan Winter [mailto:sylvan309 at gmail.com] 
> Sent: 09 February 2012 14:18
> To: Mark Nichols
> Subject: Re: [928uk] FW: [Fwd: Re: Fwd: Re: PSD operation] & Tyre pressures]]
> 
> But could you not wire the resistor in a switched circuit, switch in position one, normal RDK operation, position 2, resistor on circuit effectively disabling RDK for thos cold days at reduced pressures?
> 
> Allan
> 
> On Thu, Feb 9, 2012 at 12:15 PM, Mark Nichols <Mark.Nichols at eltek-semi.com> wrote:
> >  Sounded to useful to be that simple! Never mind.
> > Thanks,
> > Mark
> >
> >
> >
> >
> > ---------------------------- Original Message 
> > ----------------------------
> > Subject: Re: [928uk] Fwd: Re:  PSD operation] & Tyre pressures]
> > From:    "Paul R. Smith" <smiffypr at clear.net.nz>
> > Date:    Thu, February 9, 2012 11:37 am
> > To:      928uk at lists.928.org.uk
> > ----------------------------------------------------------------------
> > ----
> >
> > No, you wouldn't be able to do that, the sensors themselves are on or off.
> >
> > Smiffy
> >
> > On 09/02/2012 23:55, Mark Nichols wrote:
> >> That makes sense. Considering my everyday journeys are mostly 30 - 50 
> >> mph&  I always check and adjust for longer runs, I'll give it a try.
> >> I seem to remember the TPS warning can be overridden with a resistor?
> >> I wonder if one could make it variable threshold with a variable 
> >> resistor... The intention being to retain TPS function but be able to 
> >> set at a preferred trigger point.
> >>
> >> Cheers
> >>
> >>
> >>
> >> ---------------------------- Original Message
> >> ---------------------------- Subject: Re: [928uk] FW: [Fwd: Re:  PSD 
> >> operation]&  Tyre pressures From:    "Paul R.
> >> Smith"<smiffypr at clear.net.nz> Date:    Thu, February 9, 2012 10:35 am 
> >> To:      928uk at lists.928.org.uk
> >> ---------------------------------------------------------------------
> >> -
> >> ----
> >>
> >>  I used to drop the tyre pressures in the winter by about 5psi, but 
> >> didn't have RDK. The standard tyre pressures are set to prevent 
> >> overheating at high speeds, but don't allow the tyres to warm up on 
> >> cold, wet, straight roads.
> >>
> >> The RDK sensors are temperature dependant, the given pressures being 
> >> for 20C, so you should be able to get away with a little less in the 
> >> cold weather, but probably not enough to get extra grip without the 
> >> warning going off.
> >>
> >
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