TVIS control with MaxMSP and servo PART 1





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Uploaded on Mar 17, 2011

In order to properly control the opening point of the TVIS on my MKI.5 MR2, I am designing a system that will give me full and precise control over all aspects of the TVIS, opening/closing points and rate of opening over a range of RPM.

I am currently using Max MSP to bulid the circuit patcher, and via Maxuino, communicating with an arduino (Freeduino) that commands a powerful Spectrum A6030 digital servo. The patcher is ready for digital or analog hookup with the Honda P06 ecu and Neptune software, I will need to write the remaining part of the patch to accomodate scaling and proper function with the ems.
Some standard things to keep in mind:
My list of pieces of technology makes this possible...
-It depends on what you want to modify, this is very individual from car to car. Get to know your vehicle and its ins/outs before you tackle anything to do with the electronics.

-If you want to have this type of display, a program such as Max MSP is necessary, with a Macbook Pro (or it can be a PC, as long as it can run Max MSP). Other "itouch" facsimiles may also have similar display apps etc.

-If you just want to perfom some peripheral functions in your car like pop doors, trunk lid, or any other ideas for a servo motor to be able to actuate, then an arduino+servo+any pc that can write code for the arduino will work... along with any other analog inputs/outputs or digital inputs/outputs that you want to utilize to perform functions using an arduino... you just have to spend time with learning the arduino code. Maxuino lets you write arduino code automatically when you create a Max MSP patch for the Arduino.

-be systematic with what you are trying to accomplish. Learn the limitations of each component, so that you don't buy a bunch of stuff, and then realize that component "A" has no way to talk to component "C".

-I am taking information from my car's computer systems without affecting the car's original data streams or signals. This way, there is no way to hurt the engine. My TVIS is being controlled independently without affecting the regular on-goings of the car, and it is a non-crucial system, although it will affect performance if not operating properly.


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