During some recent competitor sample evaluation we've noticed our competitors are overmoulding grommets and fastners onto the wire harness of a sensor. We did some investigation inhouse regarding the cost benefit of inserting the grommet (using a waffle machine) vs overmolding the...
During some recent competitor sample evaluation we've noticed our competitors are overmoulding grommets and fastners onto the wire harness of a sensor. We did some investigation inhouse regarding the cost benefit of inserting the grommet (using a waffle machine) vs overmolding the...
During some recent competitor sample evaluation we've noticed our competitors are overmoulding grommets and fastners onto the wire harness of a sensor. We did some investigation inhouse regarding the cost benefit of inserting the grommet (using a waffle machine) vs overmolding the...
I had a look at this both an optical and magnetic method but both suffered from issues of contamination (specific to optical) and temperature coefficient, packaging space and alignment issues. The areas I have an interest in are the crankshaft, input/output shafts and half shafts. You really...
Hi there, thanks for your replies so far.
If it is not the case that the speed sensors are used to derive engine or transmission torque then can you identify how this is accomplished today.
Then having identified the above can you indicate why companies are now seeking to measure torque...
I have a question which I hope people can give some answers to.
Today the torque of an engine or transmission is construed from speed sensors fitted to either the crankshaft, input and/or output shafts.
I've learned that many companies now want to measure torque directly using either the...
Hi Ian, I don't represent any of these companies so this should not be considered as a promotion. However the following companies should be able to help you Ixetic, Nidec
and Brose. PM me if you want specific contacts at these companies. Best Regards
I would suggest that the BMW 5/7 Series and Volkswagen (Passat/Golf IV) have the best steering feel for an EPAS system. This is due to the configuration of the steering module which is similiar for both companies. The particular supplier uses a different set-up to other EPAS suppliers. I also...
Hi Greg, thanks for the input. We already use a sensor to read the torque via the torsion bar. Typically we are reading the differential torque over an angle of 7 degrees. A magnet is mounted on the torsion bar that allows us to measure relative change. Typically the torsion bars we see are...
Does anyone have any input on what are the key criteria in terms of developing a combined torque and steering angle sensor for EPAS applications. I'm particularly interested in understanding how the signals from such a sensor would be used and why the parameters are set as they are.
I've been to some steering conferences recently where papers have been presented by ergonomists (human factor engineers) directly employed by OEMs to try and define the best haptic feeling for the steering system. The problem with this is that you try to define the feeling for a specific...
Hi Ian,
I'm involved in this area because we supply a motor positon sensor for an EPAS motor application. I hope I can provide you some assistance. For any specific questions please PM me.
Who are the usual suppliers?
Globe Motors, EBM Papst, Denso, Brose, AMK, Mitsubishi Electric, Mark IV...
