Jump to content
Sign in to follow this  
Matt Dunn

Gear Detection

Recommended Posts

I see how the ECU can determine gear from wheel speed and RPM's,

but can you get it to determine gear from a variable resistor?

We have a gear position sensor in the gearbox,

but we dont have a wheel speed sensor at this stage?

Can it be connected to an analogue input and done that way?

 

 

Share this post


Link to post
Share on other sites

That is fine.  We will run a rear wheel speed sensor anyway and will let the ECU calculate the gear for ECU functions,

But  we will wire the AIM dash directly to the gear sensor for readout on the dash. We have been trying to avoid doubling up on sensors by wiring almost everything to the ECU and then sending it via can/rs232 to the AIM dash.

 

Share this post


Link to post
Share on other sites

Hi Matt.

I hope I am not missing the point completly here, but if the ECU will be aware of the speed input from the rear, and it knows RPM, then it by default it will know which gear you are in (when calibrated correctly). 

Your statement 'We will run a rear wheel speed sensor anyway and will let the ECU calculate the gear for ECU functions' is what has thrown me.  Why would you just not use the RS232 data to the dash for it's display if this contains 'gear' already?

Not that I can promise anything here, but what gear box/sensor brand/model are you using, as we may want to add it as a function someday.  Also, if you have the output resistance for each gear, this would help us a great deal in implementing such a feature.

Jurgen

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
Sign in to follow this  

×
×
  • Create New...