This is my sencond post on arduino.cc forum's.
I'm looking for guidance in my project :
I want to remove all wires of my old car (205 - 1988), and replace with some arduino.
So ... One for each sectors :
DashBoard (Rpm, Light, button, ...)
Rear of the cars (light, parking sensor ...)
Motor (Exaust temp ...)
Ventilation console (Ventilation, button like warning/rear heater ...)
I need a bus to communicate securly:
I'm looking for a communication between each arduino. But in a car, there is a lot of noise ...
What is the best method to send data between arduino ?
Example: warning -> communicate to : dashboard - Rears of cars
I want to send something like : rearlightleft:on,rearlightright:on ... (zZzZzZ) ... rearlightleft:off,rearlightright:off
Question: How to be sure the others arduino got the message, and if not, resend it ?
I presume the modified car will not be used on public roads?
Who would go to all that trouble for a car they are not going to drive ?
I would be very surprised if a car that has been completely rewired for computer control would be legal for use on public roads. I'm sure you don't wish to encourage people to drive illegal vehicles and risk injuring people or property.
The car is working on an "Arduino nano" since 3 Years.
Arduino nano take car of :
Exaust temp
Lambda sensor
Ignition Coil (+12V)
ACC
KeyPad Code "in-car" to unlock car
Motor starter (Seleniod)
Now, the box fuses is out of order, i can't start my car.
The cable in the box, (See attachement), are cutted or damaged, this is due to the angle of labor of the wires, once the closed box
So, sometimes, i lost assisted direction or ACC.
I do not speak either, of electric lines grouped in a rear headlight, which are damaged.
Edit: I can start my car, with boot clamps, one on the + of battery, the other on seleniod.
I'm going to replace box fuses with wire-fused : http://www.maneywire.com/images/FHMAXI-10%20Maxi%20Fuse%20Holder%20with%2010%20awg%20Wire.jpg
I've worked in car modification for somes years, on Vito, Kangoo, Logan, ... Used for frigorific use.
All wire will be protected with everithing needed. (sheath heat ...)
Edit 2:
Robin2:
raschemmel:
I presume the modified car will not be used on public roads?
Who would go to all that trouble for a car they are not going to drive ?
I would be very surprised if a car that has been completely rewired for computer control would be legal for use on public roads. I'm sure you don't wish to encourage people to drive illegal vehicles and risk injuring people or property.
...R
After 3 years without any problems, i can say:
Doing that on a car with ESP, ABS ... Can be very dangerous. But my car haven't anything like that.
If the engine stop on the road (ever get it, Ground of car damaged and burned) you can safely drive to the parking lane.
With experience i can say:
Could you imagine, a citroen C3, 1.4i, on highway, with the motor of the direction assisted locked (True!).
You can drive only ... straight ahead. http://www.eitedelinternational.com/media/catalog/product/cache/1/image/650x650/9df78eab33525d08d6e5fb8d27136e95/d/a/daencit001_c2-c3_4000wt_.jpg
A system like that, is dangerous ! there is no release on the motor ...
The vehicle is identified as vehicle collection.
It rolls bit! It is no longer necessary to made ??technical control. (Every 2 years in France)
The insurance does not provide / not cover the vehicle, but the damage to third parties.
It run on E85. No injection (Carbs ]:)) or other electronics stuff.
benda95280:
The insurance does not provide / not cover the vehicle, but the damage to third parties.
The law may be different in France but in the UK and Ireland you would still have to notify the insurers of any changes to the vehicle if you only have 3rd party insurance. Indeed they would probably be more worried about risks to 3rd parties due to alterations because the compensation payout would be much higher.
Ultimately you're going to need reliable wiring between all the power sources, fuses, switches, relays and the powered devices. If the existing wiring is unreliable then you're going to have to replace it, and whatever you replace it with will need to be properly made and installed e.g. sealed and with strain relief where necessary.
That doesn't mean you need to go to a digital control system. The simplest approach i.e. using the least number of wires and connectors is to just wire everything up directly as the original solution does i.e. just reloom it. Granted that in theory you can reduce the quantity of long wiring runs by using a common supply rail and a digital control bus, but that increases the number of wires and connections and points of failure and complexity dramatically. Unless you have some ulterior motive you haven't told us about, it doesn't seem like a sensible approach to take.
