Hyundai Motor (excluding Kia Motors) announces recall of electric vehicles

Hyundai Motor (excluding Kia Motors) announces recall of electric vehicles

The Ministry of Land, Infrastructure and Transport continued to receive complaints and eventually received orders, which Hyundai Motor accepted.

The recall is to upgrade the software of ICCUs (integrated charging control devices) of almost all vehicles produced by Hyundai Motor.
He admitted that the software design was defective.

When I saw the recall, I thought, "What's wrong with Hyundai?" because I experienced firsthand that Hyundai's software was unbelievable (emergency braking 2 seconds after the car passed in front of me, speed limits were set and then lifted).

However, after thinking about what the phenomenon was caused by this ICCU defect, my head is tilted.

The flaw caused by this issue was that the battery was not running out (as has been reported several times in the news) and the car was stopped when a message appeared to stop the car in a safe place.

In the case of a vehicle with an internal combustion engine, when the engine is running, the generator operates and charges the battery. And this battery operates all of the vehicle's electrical devices. Start-up devices, headlights, sinews, hydraulic systems, car audios, etc

If the generator fails, the engine will continue to run, but the headlights, blinkers, and instrument cluster will be turned off one after the battery is dead. When the engine is turned off, it will not start again.

The ICCU not only controls the charging of the battery that drives the electric vehicle motor, but also controls the real-time charging of the (small) battery that drives the vehicle's electric devices while driving, like a generator of an internal combustion engine vehicle.

The fault occurred when the ICCU failed to charge the battery properly, causing it to stop with an error message when the battery was almost dead. (The battery that drives the motor still had enough electricity to run 300 kilometers.)

As a former electrical and electronic gondol...

If the software of the ICCU was faulty, the phenomenon of the battery not charging should have occurred "on the day of shipment" for "all vehicles".

However, there were "some" cars that actually had defects, and the timing of defects varied from days to years.

In other words, it is not a software problem.

Isn't ICCU not the problem, but the problem of the charger itself (such as the generator) controlled by ICCU?

If the same symptoms occur even after performing a recall (software update), it will not be a problem with the software, it will be a problem with the charging device.

I don't know if the charging device is a method of charging the small battery by removing some electricity from the large battery or attaching a power generation motor to a rotating part such as a wheel to charge the small battery. It may be the former. The latter is less energy-efficient.

Anyway, it is believed that the battery will not be charged due to a physical failure of the charging device.

If I have the same symptoms after a software update, my guess is correct, and if I no longer have the same symptoms, I will fire the software designer and hire a new programmer.

In fact, given the software flaws for vehicles so far, Hyundai needs to replace its programmers right now.