Simple controller design please

i am new to this ebike world and all, i am highly interested in this type of ebikes.

planned to create one simple controller by hand, so any books or step by step guide reference, from top to finish.

have little electric background,

target : understanding the controller design.
Duation : 1 year max

Thanks.

There's a number of DIY controller threads in the motor technology section that should get you started.