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neilly



Member Since: 06 Oct 2019
Location: Oxon
Posts: 74

United Kingdom 2011 Range Rover Autobiography TDV8 Baltic Blue
2011 tdv8 vehicle dynamic suspension live readings

Hi All,

As the title says,
I have been looking for live readings of the Vehicle dynamic suspension on my 2011 TDV8.
I have the GAP IID, BT and having gone through all the pages I can see, I do not see anywhere that shows the live values for the amperage that is sent to each of the dampers ( 0 to 1.5A ) and will show they are being sent a signal.

Anyone know if it is there and I am just being a bloke and bloke looking, or is it something that needs a specific request from GAP? Ot is it a case of there is not a live readout possibility on the GAP?

Thanks for any info.

Neil

Post #585674 28th Feb 2021 2:33pm
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GraemeS



Member Since: 06 Mar 2015
Location: Wagga area
Posts: 2278

Australia 2012 Range Rover Autobiography TDV8 Bournville

The GAP tool doesn't have such a display.

Post #585722 28th Feb 2021 7:37pm
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neilly



Member Since: 06 Oct 2019
Location: Oxon
Posts: 74

United Kingdom 2011 Range Rover Autobiography TDV8 Baltic Blue

Thanks for the reply,

I have sent a message to GAP as well to ask the question. Maybe I am lucky and they have a way to check it on the books somewhere.

Well if it is not on the GAP then I assume it would be a clamp meter to the rescue. What got me thinking about it was the Youtube video from Sams motors where he purchased the cheapest TDV8 4.4 in the UK. He used a clamp meter and a go pro to film the amps .

Thanks again.

Post #585725 28th Feb 2021 7:52pm
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coopss



Member Since: 21 Apr 2018
Location: Hampshire
Posts: 281

What problem are you getting?

Also keen to get the readings as I have a slightly choppy ride. 1995 4.6 v8, green/tan (long gone)
2005 4.8iS X5, blue/black
2011 4.4 tdv8, black/black (gone)
2003 3.0d X5, Oxford green/black/manual
2021 p575 SVR, BR green/vintage tan

Post #585742 28th Feb 2021 10:11pm
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neilly



Member Since: 06 Oct 2019
Location: Oxon
Posts: 74

United Kingdom 2011 Range Rover Autobiography TDV8 Baltic Blue

Hi Coopps

I am not getting any problems, just interested in seeing if certain things are working as they should , just in case i ever have to check them in the future.

Thanks

Post #585751 1st Mar 2021 6:20am
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GraemeS



Member Since: 06 Mar 2015
Location: Wagga area
Posts: 2278

Australia 2012 Range Rover Autobiography TDV8 Bournville

If a wiring fault occurs then you'll soon know about it from the displayed fault message.

Post #585757 1st Mar 2021 7:54am
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dennij



Member Since: 23 Feb 2019
Location: Up North
Posts: 450

United Kingdom 2011 Range Rover Vogue SE 4.4 V8 Buckingham Blue

Have a look here, Sam measures the voltage whilst driving so might give you what you are looking for.

 2011 TDV8 Vogue SE

Post #585758 1st Mar 2021 7:57am
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D3Jon



Member Since: 15 Aug 2020
Location: Lincolnshire
Posts: 343

United Kingdom 

Measuring voltage won't work.

Sam (in the video above) measures amperage, but I'm not sure it's as simple as that.

The valves in the dampers are controlled by Pulse Width Modulation (PWM), so really you need an oscilloscope to see what's going on.

Any electronic experts out there who can confirm if there's any useable link between measured amperage and PWM signal width?

Jon 1992 RR Classic 3.9 efi Vogue
===================
Both my fatties now gone...
Previous: 2011 L322 4.4 TDV8 Vogue SE /// 2002 L322 4.4 V8 HSE /// 2009 Discovery 3 2.7 TDV6 XS /// 2004 Defender 90 TD5 /// 1993 110 V8 Snatch Landrover /// 2005 Discovery 3 2.7 TDV6 SE (Aus) /// 1990 110 Isuzu 3.9 County (Aus) /// 1976 Series III Trayback (Aus)

Post #585772 1st Mar 2021 9:27am
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GraemeS



Member Since: 06 Mar 2015
Location: Wagga area
Posts: 2278

Australia 2012 Range Rover Autobiography TDV8 Bournville

There's no doubt that the current draw will increase as the duty cycle increases as the ecu reduces damping.

Post #585778 1st Mar 2021 10:15am
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neilly



Member Since: 06 Oct 2019
Location: Oxon
Posts: 74

United Kingdom 2011 Range Rover Autobiography TDV8 Baltic Blue

GraemeS wrote:
If a wiring fault occurs then you'll soon know about it from the displayed fault message.


Yeah, I have had a faulty sensor, but I am loooking more for being able to read the amps , and was wondering if the GAP showed this , it appears it does not.

Thanks

Post #585819 1st Mar 2021 3:20pm
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neilly



Member Since: 06 Oct 2019
Location: Oxon
Posts: 74

United Kingdom 2011 Range Rover Autobiography TDV8 Baltic Blue

D3Jon wrote:
Measuring voltage won't work.

Sam (in the video above) measures amperage, but I'm not sure it's as simple as that.

The valves in the dampers are controlled by Pulse Width Modulation (PWM), so really you need an oscilloscope to see what's going on.

Any electronic experts out there who can confirm if there's any useable link between measured amperage and PWM signal width?

Jon


Who is measuring volts?

Thanks

Post #585820 1st Mar 2021 3:21pm
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neilly



Member Since: 06 Oct 2019
Location: Oxon
Posts: 74

United Kingdom 2011 Range Rover Autobiography TDV8 Baltic Blue

dennij wrote:
Have a look here, Sam measures the voltage whilst driving so might give you what you are looking for.



That was the video I had rpeviously mentioned.

He is measuring Amps not volts.

Thanks

Post #585821 1st Mar 2021 3:22pm
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GraemeS



Member Since: 06 Mar 2015
Location: Wagga area
Posts: 2278

Australia 2012 Range Rover Autobiography TDV8 Bournville

Measuring voltage using an analogue meter will show a low voltage for a short pwm duty cycle and a higher voltage for a longer duty cycle but a digital meter will jump all over the place. Some digital meters have a pwm function, being able to display frequency and duty cycle.

Post #585853 1st Mar 2021 8:12pm
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D3Jon



Member Since: 15 Aug 2020
Location: Lincolnshire
Posts: 343

United Kingdom 

neilly wrote:


Who is measuring volts?

Thanks


Bit snippy...

But anyway, I was replying to dennij, who said:



Jon 1992 RR Classic 3.9 efi Vogue
===================
Both my fatties now gone...
Previous: 2011 L322 4.4 TDV8 Vogue SE /// 2002 L322 4.4 V8 HSE /// 2009 Discovery 3 2.7 TDV6 XS /// 2004 Defender 90 TD5 /// 1993 110 V8 Snatch Landrover /// 2005 Discovery 3 2.7 TDV6 SE (Aus) /// 1990 110 Isuzu 3.9 County (Aus) /// 1976 Series III Trayback (Aus)

Post #585922 2nd Mar 2021 11:48am
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