Calling any car electronics guru,s on here?

[greasemonkey]

Get ya crash hat on RM!

So basically, that power steering kit has got another knob you need to turn, to get the speed of the steering right? That sounds like a heck of a laugh.......

To be honest, I think it's the wrong thing. If you look to the left if the screen, it says....


Universal Transducer
The main purpose of the transducer is to supply a speed/distance pulse signal for use with Navigation systems,...

The guy with the EPAS system seems to have done his homework, and produced a good kit.
I can't quite understand why, if this transducer is the solution, why he doesn't include it, or recommend it in the kit.

[K.H]

I did say that was an example, they are used to control steering racks when the car hasn't got an electronic output, maybe this one is a  better example
https://www.merlinmotorsport.co.uk/p/speedo-transducer-m18x1-5-sp-trans
And i know that the EPAS ECU needs a speed pulse, what i dont know is if it needs other things as well and they talk about an 4,8 or 15 signal which i havent a clue about

[Rotary-Motion]

Get ya crash hat on RM!

So basically, that power steering kit has got another knob you need to turn, to get the speed of the steering right? That sounds like a heck of a laugh.......

To be honest, I think it's the wrong thing. If you look to the left if the screen, it says....


Universal Transducer
The main purpose of the transducer is to supply a speed/distance pulse signal for use with Navigation systems,...

The guy with the EPAS system seems to have done his homework, and produced a good kit.
I can't quite understand why, if this transducer is the solution, why he doesn't include it, or recommend it in the kit.

rheostat or pentionometer, control voltage suited to speed of vehicle to how much steering power

[K.H]

Get ya crash hat on RM!

So basically, that power steering kit has got another knob you need to turn, to get the speed of the steering right? That sounds like a heck of a laugh.......

To be honest, I think it's the wrong thing. If you look to the left if the screen, it says....


Universal Transducer
The main purpose of the transducer is to supply a speed/distance pulse signal for use with Navigation systems,...

The guy with the EPAS system seems to have done his homework, and produced a good kit.
I can't quite understand why, if this transducer is the solution, why he doesn't include it, or recommend it in the kit.

rheostat or pentionometer, control voltage suited to speed of vehicle to how much steering power

Yep thats what they use but its a crap idea, ok for cruising but at other times you just havent the time to mess about with them, its the one major complaint

[Rotary-Motion]

Get ya crash hat on RM!

So basically, that power steering kit has got another knob you need to turn, to get the speed of the steering right? That sounds like a heck of a laugh.......

To be honest, I think it's the wrong thing. If you look to the left if the screen, it says....


Universal Transducer
The main purpose of the transducer is to supply a speed/distance pulse signal for use with Navigation systems,...

The guy with the EPAS system seems to have done his homework, and produced a good kit.
I can't quite understand why, if this transducer is the solution, why he doesn't include it, or recommend it in the kit.

rheostat or pentionometer, control voltage suited to speed of vehicle to how much steering power

Yep thats what they use but its a crap idea, ok for cruising but at other times you just havent the time to mess about with them, its the one major complaint

yeah i know im still trying to get my head round it, how the senser fits to the back of the clock and mesures those signals

[K.H]

It goes inline on the speedo cable, faster the cable rotates the quicker the pulse?

[greasemonkey]

I did say that was an example, they are used to control steering racks when the car hasn't got an electronic output, maybe this one is a  better example
https://www.merlinmotorsport.co.uk/p/speedo-transducer-m18x1-5-sp-trans
And i know that the EPAS ECU needs a speed pulse, what i dont know is if it needs other things as well and they talk about an 4,8 or 15 signal which i havent a clue about

I see what your saying.
It says it's 4 signal per revolution, so I'm guessing that the more signal per rev, the quicker and smoother the response will be.
I'm just guessing here, but basically the transponder is going to be giving out x amount of signals, x times per second, which is going to be called hertz?
How many Hz can the ECU read, and respond too? There is no point in going above that.

What cars have electronic power steering? One of the fiestas does, I'm sure. Not to sure which model though.
What does that use?

Like you say, it might be straight forward, at the same time, there may be different systems, and the part you get wont communicate with the ECU.

[Glycer-rides]

You should also post on the "Dazza 'n' Ged" forum, Keith...

[greasemonkey]

I would email the seller, and find out what ECU the unit is using. It's probably a commonly available ECU, and the manufacturer should be able to give you all the technical spec. Then from that, you'll know what parts are compatible.

[K.H]

It's a Corsa B EPAS along with its Ecu, I have one here

[photoman290]

all sounds a bit iffy to me. where is the failsafe if the electronics go wrong? you could have a look on some of the kit car/ racing car forums. something like the dutton or lotus 7 ones. they must have to something like that.

[greasemonkey]

They fail safe. Or at least the good ones do.There is still a solid shaft running through the unit. If the motor goes, it's no "worse" than a power steering belt jumping off, or slipping.


It seems totally puddled to me that all these companys are producing this kit, and yet there is no simple solution to this. Done a bit of googling and they all mention knobs to alter the speed.
The one company seems to have a box that will interface a wheel speed sensor with the ECU.
One would have thought that it would be straight forward, but controlling it manually seems to be a recurring theme.

[Julian]

All seems like a lot of faffing about to me. Why not fit a bigger steering wheel or some hydraulics of a dumper!

My old series Land Rover (no power steering) had a mini metro steering wheel ... took a lot of muscle power to park it.  Had you have driven that, you wouldn't be whining about fitting power steering to a little van.

[K.H]

They fail safe. Or at least the good ones do.There is still a solid shaft running through the unit. If the motor goes, it's no "worse" than a power steering belt jumping off, or slipping.


It seems totally puddled to me that all these companys are producing this kit, and yet there is no simple solution to this. Done a bit of googling and they all mention knobs to alter the speed.
The one company seems to have a box that will interface a wheel speed sensor with the ECU.
One would have thought that it would be straight forward, but controlling it manually seems to be a recurring theme.

Is that this one?
http://rallywiz.com/Shop/index.php?_a=product&product_id=22

[greasemonkey]

I saw it here.
http://www.wiringlooms.com/Products/EPAS/

Under EPAS ECUs and sensors.

They also do a torque sensor, which from what I can gather has a similar effect. The harder you turn the wheel, the quicker it moves the steering.