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How To - Tips => Electrical => Topic started by: SchulzeA on October 07, 2013, 12:18:42 AM

Title: Electric power steering assist
Post by: SchulzeA on October 07, 2013, 12:18:42 AM

I've been working on gathering information and parts for EPS. I will be using the assist unit from a Saturn Ion/Vue. The steering system normally varies the assistance based on class 2 serial data communication from the cars ECU but there is a company producing a simulator that allows the steering system to function in other cars without utilizing the ECU. The system uses a manual rheostat to change the steerig assistance manually which I'd like to change to a automatic adjustment. Can I convert the AC volt signal from the ABS sensor to DC volts with a rectifier, then connect that to a digital rheostat that would automatically adjust the steering assistance?

Title: Re: Electric power steering assist
Post by: SchulzeA on October 07, 2013, 04:23:18 AM

Here is the Ecu simulator control
http://item.mobileweb.ebay.com/viewitem?sbk=1&nav=SEARCH&itemId=171027023129 (http://item.mobileweb.ebay.com/viewitem?sbk=1&nav=SEARCH&itemId=171027023129)

http://r.ebay.com/pajN8w (http://r.ebay.com/pajN8w)

Title: Re: Electric power steering assist
Post by: usmc_butler on October 07, 2013, 08:25:35 AM

This is epic for the replica community  ::thumbup Hope this can all be figured out  ::beers

Title: Re: Electric power steering assist
Post by: SchulzeA on October 07, 2013, 05:19:31 PM

I see now that the rheostat/Potentiometer will need to be tested for it's range of adjustment so i can find the correct digital version. Hopefully RT or another electrician will chime in to help me design a circuit  :)

Title: Re: Electric power steering assist
Post by: jrule78 on October 07, 2013, 06:28:49 PM

   Does this set up have a speed sensor? You don't want the same assistance when you are driving slow the same as high speeds.