New MIMA Thread

[Mike Dabrowski 2000]

I am reaching back 5 years but seem to remember that the two signals looked quite different.
Possibly the engine torque only changes when the engine load is above a threshold?

[RobertSmalls]

I see that p. 136-7 of the Insight Resource Manual.pdf lists each of the MCM's inputs and outputs, but it doesn't explain what the ENGTRQ signal is used for.

[Mike Dabrowski 2000]

Ok that makes sense, It should be easy to test that.
If you are idling with A/C on, I have noticed that the MIMA current display will show pulsing of first 1 assist led, then the first charge led, and they rapidly alternate, which I believe is the anti-vibration function in action. Since the anti vibration/IMA action only happens during low rpm's, where the flywheel cant quite smooth the engine vibrations, that may be the only time the signal will change?

[RobertSmalls]

Before I edited my post above, I was thinking ENGTRQ was the "input of vibration control: by using the motor's torque in anti-phase of the engine (idle stabilization)" listed on p 137. But I now think that blurb refers to the "engine pulse speed" signal NEP.

The bullet points on p 136-7 are one bullet point per signal. ENGTRQ gets nothing more descriptive than "input of the engine torque signal".

[Mike Dabrowski 2000]

Just because I will not be selling any more plug and play MIMA systems does not mean that I will be abandoning the 150 or so MIMA owners.

Now that I am entering the high level programing languages world, and have the LCD display operational, the long discussed new text display for the existing MIMA owners will be developed after the grid charger is finished.
The ease of reusing code developed in C is going to make this much less painful. The compiler supports ASM files being included in the source code, so it may be relatively painless to integrate the display code with the full MIMA code.
The display and keyboard will be designed as a module so I will be able to use it in many systems with different code for the different applications.

[retepsnikrep]

This should be a nice add on Mike I look forward to it. I don't know if we can standardise on a display or buttons bewteen us? I know you like the cheaper parallel lcd option. What buttons are you proposing and how will you be reading them? ADC or one button per pic input pin matrix affair? Have you seen the little 5 way switch I use?

A 16x2 or 4x20 lcd and combined button pcb with a serial or parallel interface could be a good project on it's own? I wonder how many MIMA people are up for buying the display?

Perhaps if we designed something to fit into a single din opening?

[Mike Dabrowski 2000]

Peter,
I am using a 4X4 Key matrix that can support up to 16 buttons. It uses a full port, so my proposed key matrix is only a subset of what is available.

I will probably go with a 40 pin PIC like MIMA uses, in the grid charger, as I still have 30 or more in stock.
The 18F452 is superceeded by the 18F4520, but it follows the standard 40 pin PIC layout so many other processors will be available if special functions are required.

This will make the small module a very capable stand alone computer, which could work as an accessory to MIMA, or possibily the basis of a complete interface module capable of doing the basic MIMA stuff and other things that we think of down the road?

[timny1984]

Although this posting might not get enough attention, I am planning on getting MIMA sometime in the very near future. After going through the installation instructions numerous times I feel that I can install the system by myself. But if we could together a few people who are going to purchase the system and have a 2010 install day, i would feel more secure in my installation. Another bonus is the fact that if any snag comes along another knowledgeable person would be around to lend a hand.

With the last of Mikes systems dwindling, are there any people out there who would like to partake in such an event? I know Mike had an event back in 2005 and from his website it looks like it was quite a success.

I'm hoping this could be the beginning of another event. Mike, I know i inquired about this before, but i'd really like to be a part of something like this happening. Could a Saturday in November/December work for you Mike?


Tim

[RobertSmalls]

If you're looking to have a western New York MIMA install day, that offer is on the table. Though I should probably make the pilgrimage to NE CT at some point, and a MIMA install day sounds like a fine excuse. Count me in.

[Mike Dabrowski 2000]

I am always open to a hybrid gathering, or a group install, but it is difficult to get people together.
Opportunity #1:

I have an install scheduled for next Monday Oct 11.
A lady from Maine is considering driving the three hours to do her install here.
I have 4 systems that I could get ready by then if people let me know in the next day or so.
Now lets see if anyone else is interested.
There are 3 people that are in process of ordering a system right now, and the interest seems to be ramping up .

Get MIMA plug and play system while they still exist.