GPA/GPR Package Manual

[PEI330Ci]

Is there a plan, or an already in progress project, to write a Manual for the GPA and GPR packages?

[SprinterTRD]

The documentation is included with the package Like all MoTeC help F1 gets you there.

[PEI330Ci]

"F1" is a great resource, as are the webinars, but they haven't answered all of my questions.

Examples:

What input resource is used for the Boost Aim table? (There are a number of possible sensor resource voltages that could be the source)

What is the input resource for Exhaust Gas Temp functions? (There are 16 possibilities)

How is traction control torque management done? (DBW,Ign, Inject? Is this tunable)


There is admittedly more information for the M1 series than most any other ECU product out there. But, I'm still finding a gap between the ECU's capabilities, and the documentation provided. (FYI, I've also searched other packages like the GTR, BRZ, and Seadoo, as well as "hundred series" documentation looking for hints.)

If Motec would like to further broaden it's client base outside of professional motorsport applications, a package-specific manual is something an average consumer like myself would enjoy.

[WIDEMR]

I've only briefly looked in M1 tune but I am probably help with a few of these. I suspect having to ask these questions you may be in a little over your head with this ECU and the 100 series might have been an easier pick.

Not exactly sure what input resource you are talking about but I am pretty sure the selectable resources relate to the physical pins on the ECU. If you look at the wiring summary in the help this will inform you which pin these relate to. Obviously if you wire in your pressure sensor that references your boost pressure to A/V you would select this source.

Exhaust gas temp functions, you'd have to select the relevant source. I haven't looked an am not quite sure how these work, but I would doubt you could direct wire a K type thermocouple probe direct to the ECU but I'd happily be told wrong. You'd probably have to convert to a 0-5V output. There are a number of boxes around that are capable of doing this. Alternatively you may be able to use an E888 and import this data into the M150? Not too sure exactly how this works though.

Traction control is a cylinder cut type AFAIK. Pretty agricultural, doesn't use DBW for control.

Not sure what you mean by is it tunable, you can set various slip % aim values by using a rotary switch. I assume the ECU may use its own cut logic to reach these values.

I don't have an M1 series ecu but have been considering it. What I want to know is if the auxiliary outputs are as they are appear in the downloadable package, in which they have preset parameters for their operation. I would like to run a gearbox temperature sensor and sample this temperature in order to operate an electric oil pump to pump gearbox oil through an oil cooler. Having a quick browse through the package this doesn't seem possible? Anyone have any clarification here? Are there user definable outputs available in the package, if not, is it possible to write your own worksheet to add this functionality and if so what licensing is required.

I am interested in getting an M1 series ECU however I have quite a few unanswered questions at this stage.

Cheers,

James.

[PEI330Ci]

Hi James,

I think you may be misunderstanding my request, and the examples I listed.

If you dig a bit more into the GPR package, you will see that both Manifold Pressure and Boost pressure are referenced in the control parameters for boost control. It does not tell you which sensor you are using if both are connected. Yes you can chose the pin assignments for each sensor, but you can not select which resource is used manually for boost control.

This is only an example of the type of information I would find useful in setting up the ECU, there are many other cases where the input resource is not clearly defined, and "F1" doesn't give the answer.

As to whether I am in over my head: I don't feel that way, and my Motec dealer is excellent. I'm just pointing out some areas where I think documentation would decrease demand for customer support.


Regarding the gearbox oil pump: The functionality is there, no need to get into custom features with M1 Build for that. (Although many dealers can do this for you) The only down side is that you must use ECU outputs pins to activate the pump,(Via relay) or employ a PDM which reads many M1 channels over CAN. (There is a template in the latest PDM firmware release) You can't at this time trigger outputs on an E8XX via CAN.(At least not directly from an M1 series)

Any time you are looking for functionality, go to the Setup worksheet, and the last tab on the right has a search feature on the top left of the pane. Type in "gearbox" for example, and all associated parameters will show up in the pane. The M1 Introductory Webinars are pretty good for this type of thing....

[PEI330Ci]

Some info provided inside of M1 Tune with "F1":

Boost Control

This system controls operation of a single turbocharger wastegate solenoid.

Boost Pressure refers to the pressure above ambient at which the manifold is operating. In other words, Gauge Pressure.

Boost pressure is sensed either by a dedicated Pressure Sensor or calculated as specified in the project. The wastegate is driven by the pulse width modulated Actuator output. The output duty cycle is calculated in the Control group using PID with feed forward.

As you can see, the pressure resource is not defined.

For EGT, I was wrong. It is defined by pressing "F1" while selecting Temperature, under the Exhaust tab, in the Misc Boost Tables pane, inside the Boost Control Worksheet.

Exhaust Temperature [°C]

Measurement of overall exhaust temperature.

This value is used by the Anti Lag and Launch systems.

The value may originate from numerous sources (in order of precedence):
•Exhaust Temperature Collector: a single sensor located in a common collector, if Exhaust Temperature Collector Diagnostic is OK. Exhaust Temperature Diagnostic will be Collector.
•Exhaust Temperature Bank 1 and Exhaust Temperature Bank 2: two sensors - one sensor on each cylinder bank collector, if Exhaust Temperature Bank 1 Diagnostic and Exhaust Temperature Bank 2 Diagnostic are Bank Collector. Exhaust Temperature Diagnostic will be Bank Average.
•Exhaust Temperature Bank 1 or Exhaust Temperature Bank 2: one of two sensors - one sensor on each cylinder bank collector, if Exhaust Temperature Bank 1 Diagnostic or Exhaust Temperature Bank 2 Diagnostic are Bank Collector. Exhaust Temperature Diagnostic will be Bank 1 or Bank 2.
•Exhaust Temperature Cylinder N: up to 12 sensors - one sensor on each cylinder, if Exhaust Temperature Cylinder N Diagnostic is OK. These values are averaged in each bank calculation, and Exhaust Temperature Bank 1 Diagnostic or Exhaust Temperature Bank 2 Diagnostic will be Cylinder Average. Exhaust Temperature Diagnostic will be Bank Average, Bank 1 or Bank 2.

Exhaust Temperature Diagnostic identifies the source of the value.

The trick there was clicking on the right parameter in the drop-down menu.

And a view of the Transmission Cooling Pump menus for James:

[WIDEMR]

Ah very good on the transmission cooler, I guess the question still stands in that can you use user definable parameters and inputs to drive auxiliary outputs. I'd assume if a sensor input isn't listed also that you cannot add user defined inputs either, weird temp sensors etc.

Might be looking at different screens to you but what I am looking at only lists a boost pressure sensor voltage resource for input for boost calculations.

As I mentioned I haven't spent alot of time looking through. One of my main fears with the M1 series is getting DBW setup correctly. I would be using the ECU on a Toyota 2ZZ powered Lotus Exige and I would think that Motec would probably have some information for 100 series use with the relevant DBW, I do not know how easily this will 'port' over so to speak. You mentioned DBW, does your car have DBW and how hard was it to get that calibrated correctly?

Cheers,

James.

[PEI330Ci]

Yes I'm using DBW with IACV.

Car isn't running yet, so no PID feedback to share.

[SprinterTRD]

"Some info provided inside of M1 Tune with "F1"

"As you can see, the pressure resource is not defined."

You need to keep on reading further down in the paragrap or Click on the tree under Boost and you will see "Pressure". F1 here and your question will be answered.

There is a lot of information on each item in the resourse tree and you need to read all of it!

[PEI330Ci]

"Some info provided inside of M1 Tune with "F1"

"As you can see, the pressure resource is not defined."

You need to keep on reading further down in the paragrap or Click on the tree under Boost and you will see "Pressure". F1 here and your question will be answered.

There is a lot of information on each item in the resourse tree and you need to read all of it!

Perhaps you could copy and paste the info from your package? I'm not seeing it in mine.

I have also had a look at a GPR project inside of M1 Build, and it's not clear there either. (Many features are grey'ed out, without access to the source code)

In any case, the answer to these examples was provided to me by my dealer before I posted here. My question remains: Does Motec plan to release a more detailed manual for the GPA/GPR packages?

Thanks to all that spent time trying to answer....