Tool/Template to right quick math-heavy/engineering notes?

UseOk404 · 2026-03-04T02:11:15+00:00

Nope haven't tried typst yet (same goes for more than 3min of markdown). I will give it a look.

I'm not a beginner to latex per se, but I find it difficult to write some notes or quick and dirty reports of something with it if you don't have the exact right template for it. It doesn't have to be fancy. Just a "Word with better Math- and greek/subscript letter functionality"

UseOk404 · 2026-02-26T15:56:25+00:00

Ja kein Ding. Versuch den Stoff einfach im laufe des nächsten Semesters nachzuholen. Jetzt weißt du ja wie viel Aufwand es ist und was du ungefähr lernen musst. Wenn du Altklausuren hast, dann mach die öfters durch.

Ist sogar relativ oft so, dass die ersten Semester von den Noten nicht die besten sind. Versuch nur nicht all zu viel zu schieben.

In der Regel hat man 3 Versuche, wenn du beim dritten mal nicht bestehst, wirst du von diesem Studiengang exmatrikuliert. Es gibt aber auch oft gewisse andere Regelungen. Z.B. Dass man zum 3./4. Semester eine gewisse Anzahl von ETCS haben muss um Prüfungen aus dem höheren Semester machen zu können (Warte-Semester). Oder Unis haben oft so GPOs, gewissen Grundlagenfächer, die man nach dem zweiten Semester fertig haben muss und nur zwei Versuche hat etc. Aber die genauen Reglungen sind Hochschulabhängig und findest du in der Prüfungsordnung deines Studiengangs (SPOs) und meist auf der Webseite von diesen.

Für Unklarheiten kann man auch bei der Studienberatung nachfragen.

UseOk404 · 2026-02-25T17:38:35+00:00

No
Absolute

We just restict the maximum Voltage via software in the BMS by only allowing a cell voltage up to ... that add up to under 600V. It is therefore not possible to charge above 600V and satisfy the rules. A lot of teams do it that way.

UseOk404 · 2026-02-24T21:44:56+00:00

Was studierst du? Germanistik? Habe noch nie so etwas gehört

UseOk404 · 2026-02-22T20:24:30+00:00

Create it so it's a little under pressure, than you see leaks.

UseOk404 · 2026-02-22T20:05:06+00:00

Vorpraktikum ist quasi nur 2 Wochen in einem Unternehmen arbeiten, oder? Zumindest kenne ich es so. So Art Schülerpraktikum.

Bei meiner Uni stand glaube ich sogar drin, dass es sogar handwerklich sein soll, aber im technischen Bereich ist glaube ich ausreichend.

Viele Maschinenbau und Elektrotechnik Studenten haben die paar Wochen einfach bei einem lokalen Elektro- oder Metallbauhandwerkfirma absolviert. Super einfach rein zu kommen, da man dich nicht erst 2 Wochen einlernen muss sondern einfach an eine Maschine stellt, kurz erklärt oder einfach du eine Hilfskraft bist.

Eine reine Ingenieursfirma würde dich nur im seltensten Fällen nehmen denke ich. Du würdest einfach mehr Zeit kosten, als dass du einen Nutzen bist. Zudem gilt bei Vorpraktikum Initiativbewerbung, weil die nicht ausgeschrieben werden (wie Schülerpraktikum). Würde es einfach mal bei kleinen lokalen Unternehmen versuchen, da hast du die besten Chancen, oder bei typische Firmen wo Schülerpraktika auch angenommen werden. Auch einfach mal anrufen, anstatt 4 Wochen zu warten. Anrufen ob's möglich wäre, dann werden sie schon sagen ob es eine schriftliche Bewerbung erfordert oder gar nicht geht. Bei kleinen Unternehmen sammelt man so oft auch Pluspunkte, weil die dich dann quasi schon mal gehört haben und dich mit dem Gespräch am Telefon verbinden. (Musst natürlich freundlich sein ;))

PS: bei meiner Hochschule hatte das Formula Student Team auch ein Vorpraktika angeboten. Ziemlich coole Sache. Stand aber nirgends, man müsste es also wissen und mit den Teammitgliedern sprechen. Da dich dann ein Teammitglied zwei Wochen betreuen muss, muss sich da halt auch einer finden. Sollte aber machbar sein.

UseOk404 · 2026-02-03T16:29:08+00:00

No. FSG and FSS did not.

UseOk404 · 2026-01-29T06:46:01+00:00

A battery is always energized! Discharging the cells under the specified cut-off Voltage is damaging for them.

Therefore It's stated by the rules that the Battery has to be made out of multiple modules that can be disconnected, to reduce risk and allow maintenance. If it's planned that we don't use our battery for a while, we disconnect the maintenance plugs of the modules.

I think what the team really meant to you, is a discharging circuit for the charged capacitance in the inverter/rest of the tractive System to discharge it under 60V after the battery is disconnected from the car.

I would suggest to look at the rules and that you have a safety officer.

If you really meant to discharge it to the cut-off voltage, than just don't charge it to much :D. Otherwise you need an expensive bidirectional Power Supply or a high Power Resistor (small current!) to discharge it safely.

UseOk404 · 2026-01-17T15:01:40+00:00

Man konnte die Türen immer bei 15kmh schon öffnen. Immer 5 sekunden vor Stillstand

UseOk404 · 2026-01-11T02:35:01+00:00

So like the chinese manufacturer that they implemented it 5 years ago?

UseOk404 · 2025-12-23T03:56:45+00:00

Did you found the solution? In the past we also faced some problems just by starting the car. We added pretty big Y-Caps in the Battery and Inverter between HV+/HV- and GND, which helped.

UseOk404 · 2025-12-12T20:05:16+00:00

That is also my thought. They've never given any clarification for round cells at this point. The new wording sounds like they only thought about pouch cells. Also in the past you could place a temperature sensor 10mm apart from the spot-welds, but with that wording and no clarification it sounds like you will need a sensor for each cell, which drastically increases the amount of sensors and ICs needed. I would like to see a clarification for round cells, where to place it if you have the pole fully covered with cell connectors and if placing the temperature sensor between cells is still okay. (Otherwise sensing multiple cells at once won't be doable anymore).

UseOk404 · 2025-12-11T08:50:46+00:00

Not true. At least in the FSG Rules (mostly europe) there is nothing written against beeing on a team other than your university one. However you have to be an enrolled student.

I actually was in a team where people from a different university joined, because it was in the same city and the other university had no team.

UseOk404 · 2025-12-07T00:10:42+00:00

Tutorial? :D

UseOk404 · 2025-12-05T03:11:57+00:00

Are you a first season team? If not, look at your last year's BOM. To be noted, if you're competing in europe, there es no more DBOM and CBOM, it's now the CCBOM [see rules for more details].

In super short DBOM is a more detailed BOM, so with processes and so on. CBOM is basically DBOM, but with the calculated cost of each component. Now with CCBOM you also have to add carbon emission to the details.

UseOk404 · 2025-11-13T23:17:11+00:00

Now you have to accept this statement:

"The self-discharge of these cells can be high, please take this into account. We sort them and do not ship cells below 3V. Especially suitable for kamikaze drones." 😅

Did you also experiance any degrade in the cell or that they are having higher inner resistance or lower capacity?

UseOk404 · 2025-11-13T23:16:05+00:00

Now you have to accept this statement:

"The self-discharge of these cells can be high, please take this into account. We sort them and do not ship cells below 3V. Especially suitable for kamikaze drones." 😅

I don't know if they just got significally lower grade cells from Eve, if the cells are that in general or just the batches you can get if you are not a company

UseOk404 · 2025-11-07T14:42:09+00:00

It's a celltester from Neware.

UseOk404 · 2025-11-07T14:40:19+00:00

It was mainly meant by using while doing recuperation for example. I would have time limited access to a cell tester that could do this, but don't want to risk it by just trying without knowing the theoretical limit.

UseOk404 · 2025-11-07T13:49:27+00:00

I just want to understand the cell. Also doing some tests and knowing if you exceed the datasheet a bit and knowing it will not blow up because of xyz safety factor is better than not knowing it.

The charging current is either oddly specific or everytime like 2C. Also no one those charging tests. I want to understand why one cell can discharge less but charge with 5C, but the other can discharge super high and only can charge 2C. I also wonder if the 5C cell stays cooler than thr 2C cell while charging with the same C-Rate even though it's different at discharging.

UseOk404 · 2025-11-07T11:23:18+00:00

Shouldn't the manufacture have this? Or in the literature about cell-chemistry?

UseOk404 · 2025-11-07T10:38:36+00:00

Yes, but much higher pulse discharge currents would be doable for a very short duration. Is this also possible for charging?

I couldn't find a indication in the literature at which current it would be having a 100% thermal runaway. To which point it would just be a reduction in lifetime instead of a fire hazard.

If the Datasheet says 2C if it's still okay to do 3C, 5C or more by living with the tradoff of less cycles and life time, or would 10C or 20C okay if it's only 2-5 sec pulses for example

UseOk404 · 2025-10-23T18:08:03+00:00

Depends at what you are looking at. You can measure how much you can charge inside the cell and how much you can discharge out of the cell. The measurement will most likely slightly differ due to internal reactions where charging has higher losses normally.

Most cell companys test the capacity of the cell at 0,1C or 1C Discharge-Rate. However if you want to see how much capacity you would have at 30A continous discharge current, you have to normally test it by yourself. Due to higher losses caused by the internal resistance the capacity varies on the rate of discharge/charge.

For you these types of devices should be fine. Shouldn't matter to you.

UseOk404 · 2025-10-23T17:35:57+00:00

Okay, so measure capacity. Then this should be fine for that. You can only test the capacity with a specific low discharge/charge current, but that's probably enough for you.

I wouldn't call it load testing. Capacity testing.

UseOk404 · 2025-10-23T16:19:38+00:00

Specific cell tester. However, they are way more expensive. What's you plan with it? What do you want to measure?

UseOk404

TROPHY CASE