Engineer Cheol-woo Lee (12)
The memory card given by team leader Seo contained everything about Hyeon-seong’s hybrid engine.
Internal combustion engine, electric motor, transmission, power control module, battery condition module, motor control module, battery, steering system.
If you look at it broadly, you can classify it and that’s it, but if you go into details, there was no end.
First, the internal combustion engine includes a stor body, intake manifold, connecting rod, cylinder block, piston, crankshaft, oil pan, generator, crankshaft pulley, air conditioner compressor, timing belt, valve, camshaft, rocker arm cover, oil level gauge… … .
From there, going one step further, the crankshaft, for example.
A crankshaft that converts the force transmitted from the connecting rod into rotational torque and transmits it to the clutch through the flywheel must be statically and dynamically balanced, have sufficient strength and rigidity, and have high wear resistance.
Not only that.
In order to design the crankshaft, the ignition order must be considered, and the strength and rigidity must be moderately strong, so the material must also be tricky.
There was no bottom and no end to each and every one like this.
‘Wow, I really meant to make this from scratch and how much time and effort went into it.’
Even thinking about it now, I thought it was a very good choice to make something like Hyeonseong.
And after examining them one by one, I could see at a glance where I was wrong.
The problem was twofold.
It can’t be said that Hyunseong makes engines well from a global perspective, but it still makes the best in Korea.
It wasn’t the engine fault.
Again, it was a problem with the hybrid power system, especially the power control module and inverter.
‘hmm… … . How can I tell you this?’
It’s been less than a day since I entered here.
The researchers around me were looking at me like an animal, and Team Leader Seo was looking at me with sparkling eyes.
“Isn’t this a total mess right now? If you fix A, B breaks down, if you fix B, C breaks down, and if you fix C, A and B break down at the same time.”
Team leader Seo, who kept looking at me with sparkling eyes, said, ‘You’re amazing,’ and the researchers around me said, ‘How is that? See it once and you’ll know it, right?’
“Yes, yes. That’s right. As expected, Mr. Cheol-woo. You can recognize him at a glance.”
“Chief Seo. But who is that person? I need to properly introduce myself.”
A man in his mid-thirties, wearing a name tag that read Chief Researcher Jeong Seong-myeong, spoke to team leader Seo.
“Oh, sorry. This is him. The man who made the Freevector Gear.”
“……. ah?”
“Are you younger than you thought?”
“I see. I never thought it would be this person.”
“Oh, and it’s strange that you’re participating in LKC Engine right now?”
“Yes. Why the hell did a researcher suddenly get added?”
“This time, um… no, see you later. And don’t be surprised.”
“What is it?”
“There is TT gear.”
“……Anyway, you mean the maker of that Free Vector Gear?”
“Yes. This is teacher Cheol-woo Lee. Say hello. Say hello to teacher Cheol-woo too. This is my assistant researcher Jeong Seong-myeong.”
“Oh, hello. I’m Lee Cheol-woo.”
“Hello, Mr. Lee Cheol-woo.”
“Well, except for the title of teacher. Just call me a researcher.”
What a teacher freezes to death.
“But why does our team leader Seo call me teacher?”
From noble mtl dot com
“I will… Since when did you call me that?”
“…because you’re right, sir.”
“…”
“Anyway, so Researcher Cheol-woo immediately recognized the problem with the hybrid engine?”
“Yes. There was a problem.”
“Did you find out where the problem was?”
“Yes. There is a problem with the power control module and inverter.”
“Oh, you got one right and one wrong. There’s absolutely nothing wrong with the power control module. If anything, it’s the inverter.”
Um, maybe you guys don’t know? I’m almost certain
“Really? So you’re aware of the problem but can’t fix it?”
“…”
“First of all, didn’t you properly catch the difference in the voltage of the AC power supply? After solving the problem, the voltage of the DC power supply went down. So the voltage of the DC power supply went down, so the power charging doesn’t work properly, right?”
The problems were clearly visible.
“…… Eh? How did you know? That fact? Team leader Seo told me?”
Researcher Jung said as if he was slightly surprised.
“I’m not. Lee Cheol-woo saw the data for the first time today. You know. Our security. I didn’t know anything until I came here.”
“……Then how the hell did you know that?”
“I told you. There’s a problem. You just said there was no problem with the power control module. Would you like to make a bet with me?”
Researcher Jung frowned as if his pride was slightly hurt.
“Okay. Let’s bet. I’ve done a lot of research on this, but I’m sure there’s nothing wrong with the power control module.”
“My name, Arthur… you are not that kind of person.”
When Researcher Jeong suggested making a bet, team leader Seo stopped it.
“No, the team leader knows very well. You know how diligently I researched, but after researching until 4 am, I washed up at home and went back to work. You know those hellish days. The team leader can’t do that.”
“…… Ha, yes. Do as you like. You have to suffer to know.”
Team leader Seo quickly gave up trying to stop Researcher Jeong.
“Okay. What would you like?”
“After all, isn’t it money to bet?”
money? It’s good.
“hahahaha, nice. How much do you want?”
“Let’s make 100,000 won bread. Are you still young enough to be burdened?”
Something, Researcher Jung seemed to be fighting with me.
“100,000 won? Will that work? Wouldn’t 100 million won be okay?”
1 million.
There are a lot of income from CAK, TSS, AHS, and free vector gear royalties. However, it is currently listed in the bank account of Lava Fly Co., Ltd., and I receive a salary from Lava Fly.
The salary was not small.
About 100 million could have been spent ridiculously.
Well, being confident there also played a role.
“……? What? 100 million?”
“I told you. Seongseong-ah, it’s not someone you can deal with.”
“No, it’s not a kid’s joke, what is 100 million?”
Researcher Jung said as if he was dumbfounded.
“Yes. 100 million. Didn’t you save that much if you were capable of researcher?”
I tried provoking it.
“Are you kidding me?”
“No. Are you serious? Shall we write the contract?”
“……. Okay. Let’s write it.
“My name! My name! It’s not really, that’s for real.”
When the real 100 million bet was about to be made, team leader Seo urgently blocked it.
“I don’t know why Team Leader Seo is so afraid, but I am confident.”
“Ha… Mr. Cheol-woo. Can you watch it?”
“ha ha ha.”
replied with a smile.
To be honest, what are you going to use that researcher’s 100 million won for? Later, I intended to use the contract as an excuse to use it as my assistant in moderation.
Researcher Jeong wrote something here and there on A4 paper and showed it to me.
「LKC engine defective outsourcing service contract」
He wrote a contract in a very plausible way and gave it to me.
The content was a service in the form of outsourcing to check whether there is a defect in the power control module of LKC Engine.
‘hmm… … . Does this have any legal effect?’
I didn’t know it well, but I got along. Anyway, even if you find a defect, it won’t take away 100 million won.
“That’s great. Here’s my autograph.”
“Okay, I signed it too.”
“Is this what you call Jagangducheon?”
Team leader Seo said while watching the contract progress.
Jagang Ducheon.
Short for two proud geniuses… … .
That means that researcher Jeong is also a genius recognized by team leader Seo.
“Did you see the deadline? One month. If I don’t find it within a month, this bet is my win. Do you understand?”
“Oh, I didn’t see the period.”
I could have recited it right away, so I didn’t think it was important.
“hahahaha, even signing an autograph, I can’t return it.”
“Oh, I don’t mean that, I mean time is meaningless because the problem has already been solved.”
“yes?”
“Did I tell you there was a problem without knowing what caused it?”
“…?”
“First of all, the inverter’s problem is that the FULL-DOWN resistor value of No. 25 in the circuit diagram here is too high. It’s 60 kΩ right now, so there’s no need to use that much. I think 1 kΩ would be enough. Is there a capacitor here with that?”
First, he began to recite the problems of the inverter one by one.
I don’t know where or by whom it was made, but the resistance and capacitor values weren’t exactly set.
In particular, when the current is high, more detailed adjustment is required.
Otherwise, the results will be very different.
“And that’s not all. The transistor here has to be NPN type, not PNP type, so that it is more stable. Perhaps that is why the current bounces.”
“……What do you mean?”
“Yes. I’ll have to modify the circuit diagram a little. To fit the NPN type.”
“…”
Researcher Jeong raised his hand to the second copy of the contract on the desk.
“Wait a minute. I’ll take care of one.”
“…”
“Ah, there are so many problems with the inverter. The bigger problem is the power control module. During the test, the power cannot be properly controlled while driving on a hill, right? You have to accurately control the power of the motor and the engine, but it doesn’t work, right? “
The power control module that Team Leader Seo gave us had firmware in it, but the biggest problem was the software in that firmware.
“It’s all a slight difference between the value coming from the sensor and the programmed value. It’s a floating point error.”
“Floating point error?”
“Yeah. I don’t know who the hell made the firmware, but I didn’t even count this.”
“Anyway… it’s the first system I’ve ever made.”
“And on the downhill, the battery needs to be charged, but the power rate doesn’t seem to be calculated properly.”
“Researcher Kim, Researcher Park, Senior Researcher Choi! Check it out right away.”
After hearing that far, team leader Seo gave instructions to a researcher who was just around.
“Yes! I’ll check right away.”
“Please wait. We are already checking.”
Suddenly, the hybrid engine lab started to get busy.
“That’s right! After recalculation, the inverter’s FULL-DOWN resistance value is a bit high. It’s not only that. The capacitance of the capacitor that researcher Chul-Woo Lee mentioned also has a slight difference as a result of recalculation, and as a result of searching foreign papers, in this case, it is better than PNP. NPN is said to be more secure.”
Are you Researcher Kim? It seemed that he was a researcher specializing in hardware.
“Chief Seo! I also checked the firmware. It was confirmed that there was a floating point error, and the error value of the sensor was confirmed.”
“The power sensor has also been confirmed. As researcher Cheolwoo said, the uniformity value was not set properly.”
“Fix everything!”
Team leader Seo shouted at the people at the research institute.
“Yes! I’ll start working right away.”
“…”
Researcher Jung was alone in the busy lab.
“How is it? It seems to be fixed somehow?”
“No, how… how did you come to know so many problems at once?”
“Why didn’t you know that until now?”
“…”
Researcher Jeong was speechless.
“Sungmyeong-ah, what did I say at first? Didn’t I say you weren’t someone I could deal with?”
“and…….”
“There is a word called heaven and earth, right? Myung Seong, no matter how outstanding you are, there is another sky above it.”
“Really, I’m speechless.”
As they were admiring, I opened my mouth.
“When will 100 million be deposited?”