Hi all
Many of you have view my motorcycle project http://www.diyelectriccar.com/forums/showthread.php/suzuki-drz-sm-2005-electric-48239.html
But it was only a test for introduce the mecanical guy in mine to electric power...
So now it's time to the real project: An electric car fun to drive!
My first idea, last year, was to convert my old mercedes 190 for have a high power RWD fun to drive car (just a step under the Cro Driver BMW...). But I performed some calcul and the cost have no sense for the performance I need.
So because my budget is a bit limited I decide to reduce all the need in part like less powerfull controller and motor, less quantity of battery and that give:
-Donor car: BUY! Smart fortwo 2005 (real 730 Kg Go-Kart) It have a lot of room under the floor!
-Battery: Headway 10Ah, 48S-8P for 154V and 1000A at 12.5C
-BMS: Mini BMS centralized (3x 16S)
-Controller: BUY! Kelly KDHD 156V 1000A
-Motor: 11" modified forklift motor for good torque
-Gear box: Direct drive with 3.5:1 to 4:1 ratio
And now I have few question for you....
-I find a crown 11" forklift motor (W11AB02). I think it is a bit small! The frame is only 7-7/8" long and it's rate 9.6 Kw at 48v. The battery are rate for 115 Kw, the controller is rate for 180 Kw, so do you think this motor will be capable enough Kw to match with battery and controller? Or I need something much close to a Warp 11?
-I think don't use the original transmission because it's probably not enought strong to pass all the torque and I need a LSD differencial. I'm probably capable to build a fix ratio transfer case with integrated limited slip but I will need 4 kilovac contactor to go in reverse. In the other way I'm probaly capable to integrated some FWD LSD transmission (Honda, Volks, or....) without clutch and set to a fix ratio to have a mecanical reverse. What will be the better choise?
-What kind of charger I can match with mini-bms on 120v outlet (1800w) can give the shorter time of charge (1800w x 0.9 effiency = 1620w / 173v (48x3.6v) = 9A...... 64Ah / 9A = 7.1h of charge...... oh! fucking long)
-What do you think about the project? Good voltage? to low? Other BMS suggestion? Motor? Other concern?
Thanks
Final product: http://www.evalbum.com/4155
December 2015. Many pictures are not shown anymore, so I've create an album here: https://imageshack.com/a/uyz4/1
Many of you have view my motorcycle project http://www.diyelectriccar.com/forums/showthread.php/suzuki-drz-sm-2005-electric-48239.html
But it was only a test for introduce the mecanical guy in mine to electric power...
So now it's time to the real project: An electric car fun to drive!
My first idea, last year, was to convert my old mercedes 190 for have a high power RWD fun to drive car (just a step under the Cro Driver BMW...). But I performed some calcul and the cost have no sense for the performance I need.
So because my budget is a bit limited I decide to reduce all the need in part like less powerfull controller and motor, less quantity of battery and that give:
-Donor car: BUY! Smart fortwo 2005 (real 730 Kg Go-Kart) It have a lot of room under the floor!
-Battery: Headway 10Ah, 48S-8P for 154V and 1000A at 12.5C
-BMS: Mini BMS centralized (3x 16S)
-Controller: BUY! Kelly KDHD 156V 1000A
-Motor: 11" modified forklift motor for good torque
-Gear box: Direct drive with 3.5:1 to 4:1 ratio
And now I have few question for you....
-I find a crown 11" forklift motor (W11AB02). I think it is a bit small! The frame is only 7-7/8" long and it's rate 9.6 Kw at 48v. The battery are rate for 115 Kw, the controller is rate for 180 Kw, so do you think this motor will be capable enough Kw to match with battery and controller? Or I need something much close to a Warp 11?
-I think don't use the original transmission because it's probably not enought strong to pass all the torque and I need a LSD differencial. I'm probably capable to build a fix ratio transfer case with integrated limited slip but I will need 4 kilovac contactor to go in reverse. In the other way I'm probaly capable to integrated some FWD LSD transmission (Honda, Volks, or....) without clutch and set to a fix ratio to have a mecanical reverse. What will be the better choise?
-What kind of charger I can match with mini-bms on 120v outlet (1800w) can give the shorter time of charge (1800w x 0.9 effiency = 1620w / 173v (48x3.6v) = 9A...... 64Ah / 9A = 7.1h of charge...... oh! fucking long)
-What do you think about the project? Good voltage? to low? Other BMS suggestion? Motor? Other concern?
Thanks
Final product: http://www.evalbum.com/4155
December 2015. Many pictures are not shown anymore, so I've create an album here: https://imageshack.com/a/uyz4/1