EM Connect

2024 ePure Comp Phone App

EM is already foreshadowing the future.  Check out the embedded video at 17 seconds in.  They are calling it EM Connect.

There appears to be programmability for Throttle Reactivity (I would call this throttle response), Power, Maximum Vehicle Speed, Idle Speed (part of Tick Over), and Idle Torque (again part of Tick Over) independently for 3 maps.  

Unfortunately, I doubt EM will make this feature inexpensively retrofittable to existing bikes.  Presumably a Bluetooth interface will be required for the controller.  Hope I'm proven wrong.

Factory Documentation for EM Connect

Electric Motion has already provided the User Manual for the 2024 Comp on their website.  Additionally, two factory videos on setting up and using EM Connect may be found there as well.   The information presented below has been gleaned from these sources (and mixed with a bit of my own prejudice and speculation). 

In addition to the above-mentioned programmability on a map-by-map basis, there are global settings for Throttle Range; Throttle Dead Zone, and Brake (regeneration) Force.

Compatible with iOS > 13.0 and Android > 9.0 (Verbatim from EM's description.  This is an unusual way to specify minimum version numbers.  Possibly actually meaning greater than or equal to?)  

TCU

EM Connect was implemented by the addition of a box they are calling the TCU.  Presumably, this contains the Bluetooth interface.  But I have no idea what TCU may stand for.  Perhaps it's Traction Control Unit (?) as I see the ESCAPE models appear to have traction control.  I'm going to call it the Tracking Control Unit because it interacts with your phone.  I'm sure you'll be waiving any right to privacy when you accept EM's terms of service  (joking, but not completely).   

This is a huge box for a Bluetooth module as they are typically the size of a postage stamp.  So, I'm guessing it may have something to do with the cockpit display as well.

 The display is shown below.  It appears to provide a wealth of information including ground speed; motor speed; battery state of charge; present map; and whether TKO is enabled.

Credit: Electric Motion.  Location of TCU module on 2024 ePure Comp. Part number TL02S-50701-00-00.

Credit: Electric Motion. Cockpit Display

Credit: Electric Motion. Cockpit Display Screen

February 2024 Update

No EM models made before 2023 are eligible for upgrade to EM Connect.  You must provide your VIN with the order.  Even then, the upgrade costs 499 GBP (over 600 US dollars) and does not include the cockpit display.

There is an ominous asterisk on EM France's website regarding EM Connect and I quote, “*Electric Motion offers the EM Connect application & services to its customers of 2024 models for 1 year.”  What does that mean?  Will owners have to pay for the app/service after a year?

Dashboard Error Codes

If an error code appears on the dashboard display, the bike will be inoperable.  

An overtemperature error can be solved by allowing the bike to cool.

It's possible an unplugged or disconnected error could be resolved by reseating the affected connector(s).

EM advises attempting to restart the bike by removing and reinstalling the tether switch magnet.  If the error persists after 3 such attempts, you will need to contact EM customer service. 

EM Connect Default Values and Descriptions

The table below shows default values for a 2024 ePure Sport.  Other bikes may be different.  The General page settings apply to all 3 maps.  Each of the three maps then has a separate page to configure its specific behavior.  Most of the settings are fairly self-explanatory and experiencing the change is probably the best way to define it.  It's probably wise to change only one setting at a time and test until you gain some experience.  

You must perform a “SEND” for each setting you change.  This action writes the change to the controller's RAM.  The change will only be present until the battery is switched off.  In order to permanently save your changes to the controller's  non-volatile flash memory, you must perform the “SAVE” found on the General page.  

Throttle Reactivity may be visualized with the aid of a graph from the siliXcon controller documentation (shown below).

Credit: siliXcon

Throttle Reactivity

Throttle reactivity changes the shape of the transfer function (throttle movement versus command signal to motor controller).  

The dark blue line shows a linear relationship.  The orange line labeled “exp = 1.3” shows a characteristic desirable for motorcycles.  That is, a softer initial throttle response than linear.  Ignore all the other lines.

Throttle Reactivity changes the shape of this curve to make the initial throttle movement more or less aggressive.

Secondhand Bikes and EM Connect


I don't own a bike with EM Connect hardware, but did the following experiment:


First, I downloaded the EM Connect app from Google Play to an Android phone that does not have a wireless contract (so no phone number).


When EM Connect asked for a phone number, I gave it a valid mobile phone number from a different phone.  To which I was sent a 6-digit activation code via an SMS text message.


I entered that activation code into the phone with EM Connect installed.  It was accepted and  I continued on to the scan QR code portion of the installation.  I had a photograph of a valid QR code, which I scanned.


EM Connect said that QR code was already in use.  Which is true.  

From all this, I inferred several things: