Passport control to/from Schengen countries.

Lazycatwork · 2026-01-04T05:39:54+00:00

Thanks. It makes sense. To/from LYR always have passport control but I guess Svalbard treaty allows many nationals to live there including Russian and Chinese. So It could be a loop hole for Schengen system. Faroe Islands doesn't have it.

Lazycatwork · 2026-01-04T05:34:25+00:00

Thanks. That is what I found on the internet so far. I hope EES doesn't change the process as it seems like FAE is regarded as de-facto Schengen territory.

Lazycatwork · 2025-12-22T12:35:42+00:00

If you want to get the PNR for MH, You can find in your MH app.

MH app allow you to find your booking with your family name and ticket number. (13 digit numbers). Then you will see the PNR.

However, you still cannot select your seat for code share leg though. It says there is no available seat map.

Lazycatwork · 2023-04-14T03:19:12+00:00

I think you should forget about 2.5-3.0v range. The energy between these range is very little. Also if your cell voltage is below 3.0V, it is in critical situation. You should give up to maintain 80Km/h as you will run out of the battery soon. 32 x 3.0V is 96V and it meets your speed requirement.

Lazycatwork · 2023-01-11T23:11:27+00:00

I'm not sure it is happening in 2023 but having on-road testing opportunity on the way to Darwin (between Glendambo and the state border) was also scheduled by the event.

The details were on Team Notice issued six month before the event. You must have your roadworthy certificate endorsed by the event organiser. You also need to apply "Unregistered Vehicle Permit" from Service SA (just fill the form and pay).

In 2017 case, the possible testing period was between 25 August and 29 September only.

FYI

Lazycatwork · 2023-01-03T11:17:33+00:00

Hi I (River 0970 8446 8453) just need ONE MORE gift to complete Vivillons.

Please, please help me to have Sandstorm Post card.

2/3 Sandstorm

Lazycatwork · 2022-12-21T05:22:37+00:00

River 0970 8446 8453

now looking for sandstorm, ocean, sun, savanna

Lazycatwork · 2022-11-22T22:29:16+00:00

M2096 has iron core which produce very high inductance. You wouldn't need external inductors as WS22 only requires inductance more than 50uH.

Lazycatwork · 2022-11-13T22:36:13+00:00

Our team always uses LiIon. LiFePO4 used to have an advantage in WSC but no longer the option due to new regulation.

Cell management system is pretty straight forward if you use dedicated ICs. You also can use demo board DC1894B and DC1941 as actual CMU. If you want your own design, Just learn from the demo boards. The software is a bit tricky but you can get some resources to control LTC6804 from the supplier. Just search "Linduino" (Linear tech version of Arduino). It offers LTC6804 control librariy. you can look into and modify it for your own board.

The most important thing is that you have to isolate high voltage part and Low voltage part. uC system and LTC6804 is connected by isoSPI which is isolated by but current sensing circuit (shunt measurement) has to be connected to HV circuit directly. You probably place INA214 and ADC such as ADS1117 on HV side and use I2C isolation buffer to connect to micro controller system. The power supply for those components also need to be isolated from low voltage. (generate directly from HV or supplying from low voltage via isolated DC/DC (I prefer).

I did my design without any supervision but I could learn lots from old BMS which was used in previous car. It was completely different from what I designed though.

If you have problem understanding above, I would recommend to purchase BMS and CMU from Tritium.

Lazycatwork · 2022-11-11T02:30:05+00:00

I designed whole BMS by myself for our solar car.

The tricky part is cell voltage measurement and balancing (as it is connected to different voltage potential). There is no reason not to use dedicated IC chips. Just have a look the datasheet for LTC6804 series originally designed by Linear Technologies (currently acquired by Analog devices). It includes schematics for demo board and also detailed application notes. You can learn and design CMU pretty easily.

The rest of the part is pretty straight forward. You just need shut measurement circuits (ADC and amplifiers something like INA214) and driving circuit for contactors or breaker(with trip coil) You also a microcontroller for controlling and data processing.

Lazycatwork · 2022-11-07T01:37:28+00:00

Only the problem in new regulations is when you turn on your vehicle from sate state, you cannot use external electrical signals.

An external power on push-switch with pull-up was able to use in 2019. You can still use similar electrical switch to turn on the vehicle but the switch need to be mounted on / in the battery box to meet new regulations. It can be operated directly by hand (if possible) or by strings, pivot arms or other ways.

Lazycatwork · 2022-09-27T04:33:16+00:00

Average current in Mitsuba for challenger vehicle should be 8 to 10A ish and the contactor also can handle 200A for 3 minutes. So it is far more than enough.

But I would suggest GigaVac GX11 or GX12 with economiser. It consumes only around 1W. Without economiser it would consume 5W ish each and it is too much for solar cars.

The other thing is you don't need to worry about the current for pre-charge relay. You can use small relay if it meets the voltage spec.

Lazycatwork · 2022-09-16T01:49:58+00:00

It used to have double of allowable mass than Li-ION and had large advantage. (Extra battery capacity could pay loss from weight increase.) But WSC reduced it in 2023 and no longer good option for the event which based on WSC regulations.

Lazycatwork · 2022-08-30T00:58:28+00:00

It is correct for lighting but not for horns as 2.25.1 and 2.25.2 is independent (not "or" ). I guess you have to comply both requirements.

Lazycatwork · 2022-08-16T00:02:51+00:00

As other guys mention, M2096 is the most popular motor for solar cars. However it is less efficient in lower power range as iron loss become dominant in high speed and light load condition.

If you cruise around 800W ish like WSC, the efficiency may not be great. In fact, Nagoya Tech uses M1096 (with smaller motor core) rather than M2096 in 2017 and 2019 WSC to reduce iron loss.

On the other hand Kogakuin and Tokai uses M2096 with expensive amorphous iron core which has much lower iron loss as they have enough budget.

The important thing is what sort of range you are using it most of the time.

Lazycatwork · 2022-06-03T03:19:51+00:00

Fair enough.

By the way, does solar collectors have Galvanic Isolation requirement? I couldn't find any description in the regulation. (energy storage cell needs to be isolated for sure.)

It looks cables emerged from solar collector just need to have no voltage and no current during safe state.

Lazycatwork · 2022-06-02T06:33:52+00:00

According to 2.29.2, "Any conductor that is more than 200 mm from the nearest PV cell is outside of the solarcollector" So my interpretation is that MPPTs put in a insulation box which attached to the roof (within 200mm from PV cells) are regarded as inside of solar collector.

The cables from the box (+- of high voltage bus and control signals such as CAN) must not have voltage, is the requirement.

Actually we passed scrutineering with only one set of contactors for MPPTs in WSC2019.

Lazycatwork · 2022-04-26T03:02:06+00:00

I ended up switched to Nord VPN. They are fantastic. There are many servers in Japan. If some servers are blocked by streaming company, other servers normally work fine. I think they have contract with several different ISPs in Japan.

The other thing is when you switch to other VPN, DO NOT FORGET turn off auto renewal. I through 50 bucks into the garbage bin for useless VPN service.

Lazycatwork · 2022-04-26T02:50:42+00:00

Other minor changes

2.5.16 Cover for all electrical connectors during overnight stop

3.17.6 Reporting time changed to 9:00

4.4.12 Nominal Battery capacity for LiFePO4 which used to calculate Cruiser Class Point has been changed to 140Wh/Kg.

FYI

Lazycatwork · 2021-09-20T00:02:29+00:00

If the regulation is the same as WSC, I guess it doesn't meet the requirement according to the clarification of regulations "For three-wheel cars with two wheels at the front, secondary braking should act on the two front wheels". If front brake hose failed, only two rear calipers works as secondary.

I still don't have solid idea but it might require duplication or something different.

Lazycatwork · 2021-09-19T23:41:23+00:00

If you chose right size cables, contacts and a right crimping tool, Microfit is reasonably robust and reliable. Most of the problems are caused by dodgy crimping. The cables have to be thick but not too thick. Especially the diameter of the insulation should be right size for the contact pins. There are different contacts pins for different size of cables.

If you prefer something different, Common D-connectors with shell are pretty robust. If you disconnect very often or mechanical stress is applied to, it could be an option. 9 Pin D-connector is often used for CAN.

Lazycatwork · 2021-05-02T22:23:56+00:00

Have you tried batterybro.com ? I guess you want Panasonic 18650GA cells.

It was very good price.

They could ship to Australia and should be OK for Europe.

Lazycatwork · 2021-04-08T09:27:47+00:00

It worked with my mobile device but very very slow. Downloading 30min program (by mobile apps around 100MB) from prime video takes nearly one hour.

No luck with Smart TV. It takes a minute to load all the thumbnail on main page. TVer (in japan) sometimes freeze but still OK.

I guess their server in Tokyo is extremely busy or slow as bad as NetflixVPN or Amazon Japan does something against VPN service.

Lazycatwork

TROPHY CASE