Indicator controls and IVA

Indicator controls and IVA

Author
Discussion

sukhjeevan

Original Poster:

290 posts

222 months

Wednesday 26th November 2014
quotequote all
Can anyone offer some IVA advice?

As part of my build I am developing a wireless steering control for my indicators, main beam and horn.

With a traditional indicator switch it's not possible to have both left and right turn signals switched on at
the same time. However, with independent steering buttons it will be possible to have both left and right switched on at the same time.

Would this fail IVA?

anonymous-user

53 months

Wednesday 26th November 2014
quotequote all
sukhjeevan said:
Can anyone offer some IVA advice?

As part of my build I am developing a wireless steering control for my indicators, main beam and horn.

With a traditional indicator switch it's not possible to have both left and right turn signals switched on at
the same time. However, with independent steering buttons it will be possible to have both left and right switched on at the same time.

Would this fail IVA?
eh? Surely, it would be a stupid system that would allow this? Use momentary push buttons, and have the logic controller of the system cancel any existing indication if the other button is pressed.


(you are also "re-inventing the wheel" to quite a large degree here as well..........)

Storer

5,024 posts

214 months

Wednesday 26th November 2014
quotequote all
I am no expert, but I suspect any wheel mounted buttons will fail the IVA probably due to the fact that if the wheel is turned 180 degrees the buttons are then the wrong way round.

You may be better off building the car to pass IVA and then modifying, if you want to, once it has passed.


Paul

Alex93

115 posts

125 months

Wednesday 26th November 2014
quotequote all
Storer said:
I am no expert, but I suspect any wheel mounted buttons will fail the IVA probably due to the fact that if the wheel is turned 180 degrees the buttons are then the wrong way round.

You may be better off building the car to pass IVA and then modifying, if you want to, once it has passed.


Paul
I'm also no expert, but surely for a product e.g. Summit Tech Raptor 'Road' which is a wireless, steering wheel switch system. If road legal as advertised, surely it must pass IVA?

Alex

sukhjeevan

Original Poster:

290 posts

222 months

Wednesday 26th November 2014
quotequote all
I am aware of the Raptor and Cartech devices, but fancied developing my own to save on costs.

I believe the Raptor is IVA proof so steering mounted controls will pass IVA even if the the wheel is turned 180.

F.C.

3,896 posts

207 months

Wednesday 26th November 2014
quotequote all
sukhjeevan said:
I am aware of the Raptor and Cartech devices, but fancied developing my own to save on costs.

I believe the Raptor is IVA proof so steering mounted controls will pass IVA even if the the wheel is turned 180.
Get the car through IVA first, then add the trick bits.
Many people have fallen foul of this simple path and gone to town on their dashboards only to find themselves ripping them out again because of some overlooked IVA requirement.

Storer

5,024 posts

214 months

Wednesday 26th November 2014
quotequote all
Do not think something you can buy in the States that is OK for use there is suitable for UK. Our regulations are quite different.


Paul

Lee Mack

36 posts

144 months

Wednesday 3rd December 2014
quotequote all
Hi sukhjeevan et al,

Fitting Steering Wheel mounted controls (or Buttons) to your Ultima is a sure fire way to fall foul of current IVA regulations, UNLESS the system has been designed and developed specifically for that purpose (Satisfying UK IVA regs - Cartek's Infra Red product does not).

As pointed out previously, being able to select both indicators at the same time would be a fail and potentially dangerous to other road users. I expect your thinking about enabling both indicators as a sort of 'Hazard' light instead of a dedicated Hazard switch ? There are a number of reasons why that wouldn't work... It would need to be permanently powered (to activate it while the vehicle ignition is off), you would need to have a dedicated Hazard button and corresponding symbol to satisfy IVA Regs (Pressing Left and Right Indicators at the same time is a no no).

The Indicator buttons for left and right indication need to have appropriate symbols in size and design, as do any other driver controls (Horn, Lights) in accordance with the regs. Also, the functionality needs to have cancellation built in to specifically avoid you being able to press both indicators at the same time etc. etc.

Rigging up a rudimentary wireless effort with a cheap RF Relay system from eBay or otherwise is a bad idea. Technically.... will it work ? yes, probably. Will it be rock solid reliable on the frequencies available for consumer use ? No, definitely not !!!

Public frequencies for consumer electronics are restricted to specific licensed bandwidths within these ranges, along with Garage Door Openers, Door Bells, TV Remote controls, even some wireless CCTV Camera systems use these frequencies. Given the right frequency, you could have your Hazards, Indicators, Horn or worse activated randomly as you pass by an active system.

So to build an ultra reliable, interference resistant and more importantly safe, UK IVA satisfying Wireless Button system takes 1000's of hours of R&D and MANY thousands of pounds to develop.

Personally, I wouldn't trust my safety to anything less than a professionally developed, working solution that already does everything I need for sake of a few hundred pounds smile





Edited by Lee Mack on Wednesday 3rd December 11:14


Edited by Lee Mack on Wednesday 3rd December 11:17

Alex93

115 posts

125 months

Wednesday 3rd December 2014
quotequote all
I received my Summit Tech Raptor Road last week and it states that it is IVA compatible.

Alex

sukhjeevan

Original Poster:

290 posts

222 months

Wednesday 3rd December 2014
quotequote all
Thanks for everyone's valuable input. The Summit Tech Raptor Road looks like a far simpler route now!