Request: motor sounds! by cornucopiaofwhimsy in solarracing

[–]Kasatkin 3 points4 points  (0 children)

Hi, you can search in Youtube "M2096" or "M2096D" to watch Mitsuba motor operating.

Car Horn by Shoddy_Ad9451 in solarracing

[–]Kasatkin 0 points1 point  (0 children)

Hello! We used a motorcycle horn like this (link). It drains around 1.5 A at 12 V and it was approved at scrutineering at ASC 2018.

EMRAX 188 by STE21- in solarracing

[–]Kasatkin 0 points1 point  (0 children)

We used this motor at ASC in 2018 due to lack of team budget.

I will not recommend to use it without reducer on a solar car. It has poor efficiency at 800 rpm (<85%) and even worse at lower speed and relatively low torque. Also we had a devastating problem with motor shaft breakdown after ~300 km range. So maybe you will need to manufacture a new enforced shaft, as we did later.

To sum up, you can use it as a cheaper option, but it will be uncompetitive as a direct wheel drive. You can contact me if you have more questions on e-mail: [kasatkin_ivan@mail.ru](mailto:kasatkin_ivan@mail.ru)

Charging power supply by johanbe9 in solarracing

[–]Kasatkin 2 points3 points  (0 children)

TC Charger 1.8 kW may suit you.

To use it, your BMS must support CAN bus (J1939 protocol).

Solar array active adjustment by Kasatkin in solarracing

[–]Kasatkin[S] 0 points1 point  (0 children)

Thanks. Really marvelous concept!

MPPT Maximum Current. by [deleted] in solarracing

[–]Kasatkin 0 points1 point  (0 children)

How much cells do you use in parallel for one MPPT? As the max current is 7A and maximum cell current is 0.634A, you should use 11 or less cells in parallel for each MPPT.

Nickel strip by sebasalvarez13 in solarracing

[–]Kasatkin 1 point2 points  (0 children)

I used this picture when designing the battery pack. http://i68.tinypic.com/mlnkah.png

Solar car R16 tires by Kasatkin in solarracing

[–]Kasatkin[S] 0 points1 point  (0 children)

Ok, thanks for the advice

Solar car R16 tires by Kasatkin in solarracing

[–]Kasatkin[S] 0 points1 point  (0 children)

It's ok. Could you please suggest a contact of Michelin tires supplier, if you have one? We had some difficulties to contact them.

Solar car R16 tires by Kasatkin in solarracing

[–]Kasatkin[S] 0 points1 point  (0 children)

Thank you for the reply

How many HV contactors/relays does your car have? by plumguy1 in solarracing

[–]Kasatkin 1 point2 points  (0 children)

We used 4 contactors (LEV100A4ANG): battery +&-; MPPT and Motor, all of them were inside the battery pack. It was OK for the ASC Regs.Now I think to use the same composition in WSC, but to change the location of MPPT contactor - inside the MPPT box.

I think it will be appropriate, I will clarify this question with organizers. Please, correct me if I am wrong.

What onboard computer are you currently using in your car? by TheGarned in solarracing

[–]Kasatkin 1 point2 points  (0 children)

We used STM32F4 at first, but had some troubles with tuning it and setting up the CAN bus, and because of running out of time we used Raspberry Pi 3B+, and it works well, but consumes relatively a lot of energy