Hello.
Aware that i can't know all the problems that will i must face to, I opened a topic on two forums that I entered more often.After discussions
on UrbanRiders.ro and Motociclism.ro I came to the
following conclusions:
a) for controller stability the power supply must be well designed. The bike battery provide 12v DC, but in reality it may happen that this voltage
to grow up to 100V (for a short time of course) due to alternator dysfunction or when some loads (like headlights) are turned off.
b) Must use a MAP sensor to a better control of the engine. Initially I wanted to use the TPS sensor to calculate the amount of fuel to be injected
(see ALPHA-N) but I realized that will be hard to control the engine speed because the amount of air that enters the engine is not linearly
proportional to acceleration position. The amount of air that enters in the cylinder is dependent on the atmospheric pressure and air temperature.
So a MAP sensor is much better than one TPS.
c) I need to design another block for the STEPPER actuator to control the "Fast idle" function. The "Fast Idle" function means the higher speed at
which an engine idles during warm-up. When first started, a cold engine needs more throttle opening to idle properly. On carbureted engines without computer
idle speed control, a set of cam lobes on the choke linkage provides a fast idle speed during engine warm-up.
d) Is very important to not hang or restarts the controller. I understand that micro-controllers (especially the microchip) can easily be restarted due to
electromagnetic interference or from variations in supply voltage. For example, a strong electromagnetic source it is the horn!
