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 BYD Malaysia buys back faulty Atto3

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SUSipohps3
post May 26 2025, 08:20 PM

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QUOTE(Alternate Gabriel @ May 26 2025, 08:19 PM)
You can't change perception of any china made products = junk.

See mobile phone as example. they released so many products on a short time. Same goes with other things
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see post 120
mac_mac21
post May 26 2025, 08:30 PM

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QUOTE(trusol @ May 26 2025, 06:37 PM)
I don't think you can detect any sensor fault of any kind, unless you have multiple units of the same sensor with one not reporting the same condition with the other.

For example you have a temperature sensor reporting very high temperature but actually it is faulty, how would the system knows that it is faulty? It is impossible to know that. Unless you have another sensor's reading. If both sensors reporting high temperature, then only the system really knows that you have high temperature. If one is very different from the other, then you have a sensor fault.
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so instead of give warning light , BYD choose to do emergency shutdown in the middle of the highway doing >100km/hr when detect faulty sensor?

if the car initiate emergency shut means it can detect fauty sensor, no?

else car just drive like normal with faulty sensor
MegaCanonF
post May 26 2025, 08:49 PM

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Damn.. if ayam owner, no more CCP cars for the rest of ayam life
Roman Catholic
post May 26 2025, 08:49 PM

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QUOTE(Boy96 @ May 26 2025, 08:17 PM)
Tak kisah , already bekam tikus makmal for first batch pijot, ford, vw also lel
36k. But many of frens driving one already reach 100k
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Ok and I presume that the factory battery had been changed or are you still using the original factory battery ?
If you had changed the battery already, what were the weak battery readings ?

This post has been edited by Roman Catholic: May 26 2025, 08:50 PM
TSBoy96
post May 26 2025, 08:52 PM

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QUOTE(Roman Catholic @ May 26 2025, 08:49 PM)
Ok and I presume that the factory battery had been changed or are you still using the original factory battery ?
If you had changed the battery already, what were the weak battery readings ?
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Mine is still on the factory battery

SC did the battery test during service and this is the printout

user posted image
ry8128
post May 26 2025, 08:52 PM

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QUOTE(MegaCanonF @ May 26 2025, 08:49 PM)
Damn.. if ayam owner,  no more CCP cars for the rest of ayam life
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Why owner and not owner different? Things still happens right?
Roman Catholic
post May 26 2025, 08:54 PM

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QUOTE(Boy96 @ May 26 2025, 08:52 PM)
Mine is still on the factory battery

SC did the battery test during service and this is the printout

user posted image
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How long have you had the Atto3 boss ?
yed
post May 26 2025, 08:56 PM

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Never buy ccp car..nice appearance but safety & reliability hopeless
TSBoy96
post May 26 2025, 08:56 PM

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QUOTE(Roman Catholic @ May 26 2025, 08:54 PM)
How long have you had the Atto3 boss ?
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Since may 2023
ShadowR1
post May 26 2025, 08:58 PM

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What the flying fuck.
Driving it daily is like tikam when the car gonna do kaw u stop at highway blakang ade trailer... hkc time.
contagiouseddie
post May 26 2025, 09:00 PM

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QUOTE(trusol @ May 26 2025, 06:37 PM)
I don't think you can detect any sensor fault of any kind, unless you have multiple units of the same sensor with one not reporting the same condition with the other.

For example you have a temperature sensor reporting very high temperature but actually it is faulty, how would the system knows that it is faulty? It is impossible to know that. Unless you have another sensor's reading. If both sensors reporting high temperature, then only the system really knows that you have high temperature. If one is very different from the other, then you have a sensor fault.
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I used to sell a temperature control device. So, at 1 point, the manufacturer of the IC (Maxim, now bought over by Analog Devices) wrongly calibrated a batch of the IC. I usually tested the devices up to 100 Degree Celsius although the device runs up to 250 Degree Celsius. Unfortunately, the wrongly calibrated part kicks after 100 degree celsius where the relationship doesn't follow the graph anymore! So, it could be reporting 150 Degree celsius but it is actually 300 Degree Celsius. A customer nearly burn down his house. Maxim refunded me just their part cost. Never ever trust even freaking big companies like Maxim and Analog Devices. This applies to everything in life.

But for the CCP cars/EV case, I'm more inclined to say they are still behind in safety design. Whether it's in the hardware, mechanical or software/firmware, they are just still lacking. It's easy to write software for fancy stuff but it's much harder to write code for black boxes.
Roman Catholic
post May 26 2025, 09:01 PM

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QUOTE(Boy96 @ May 26 2025, 08:56 PM)
Since may 2023
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How is it that your battery is still kicking long after the warranty mileage of 20,000 kms whereas our friend battery had failed at 10 months or just above the warrantied mileage. It would be good if I have access to that battery in question so that test can be done to determine was it really the 12V battery or is it something else.

If your friends whose Atto3 already clocking 100,000 kms and they are still with the factory battery, this case lagi doesn't make any sense.

This post has been edited by Roman Catholic: May 26 2025, 09:04 PM
Gargamel_gibson
post May 26 2025, 09:16 PM

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QUOTE(mac_mac21 @ May 26 2025, 08:30 PM)
so instead of give warning light , BYD choose to do emergency shutdown in the middle of the highway doing >100km/hr when detect faulty sensor?

if the car initiate emergency shut means it can detect fauty sensor, no?

else car just drive like normal with faulty sensor
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People somehow ignoring this. Usually if check engine or sensor failure will go into limp mode, at least you can still drive but just low speed and cannot rev past 3000rpm. This is poor engineering, this is not "isolated case". BYD is a no buy.
kkkw80
post May 26 2025, 09:16 PM

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Wow 10 months 20k km. One of my car 5 years only 42k and another 7 years 83k km
saiga
post May 26 2025, 09:20 PM

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QUOTE(MR_alien @ May 26 2025, 08:08 PM)
you're thinking from ICE prespective where things are much simpler

but EV the programming is maybe different or programmed not complete enough, u know lah how china doing their things
maybe the program is if 1 sensor faulty > all system shutdown

instead of programming it more complicated and complete like the conti cars do
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Jilake I thought conti car already so many sensor, mana tau today even China car also same/or more.

Lucky when my car soft close door unit fail only soft close function disabled. Not automatic brake the car
saiga
post May 26 2025, 09:21 PM

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QUOTE(kkkw80 @ May 26 2025, 09:16 PM)
Wow 10 months 20k km. One of my car 5 years only 42k and another 7 years 83k km
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I one month 3500km. Hence, the 350 liters/month lol.
MR_alien
post May 26 2025, 09:25 PM

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QUOTE(saiga @ May 26 2025, 09:20 PM)
Jilake I thought conti car already so many sensor, mana tau today even China car also same/or more.

Lucky when my car soft close door unit fail only soft close function disabled. Not automatic brake the car
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all cars today have tons of sensors and computers inside

EV in particular is you're basically driving a giant computer...there is almost no mechanical parts

the only difference is how complete the programming is

This post has been edited by MR_alien: May 26 2025, 09:26 PM
Roman Catholic
post May 26 2025, 09:26 PM

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Those in FMCG line can easily clock 50,000 kms per year.
arcadicus
post May 26 2025, 09:27 PM

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Ice ftw
mushigen
post May 26 2025, 09:29 PM

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QUOTE(trusol @ May 26 2025, 06:37 PM)
I don't think you can detect any sensor fault of any kind, unless you have multiple units of the same sensor with one not reporting the same condition with the other.

For example you have a temperature sensor reporting very high temperature but actually it is faulty, how would the system knows that it is faulty? It is impossible to know that. Unless you have another sensor's reading. If both sensors reporting high temperature, then only the system really knows that you have high temperature. If one is very different from the other, then you have a sensor fault.
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Simple solution: implement a "2 out of 2" failsafe for important interlocks. But it's going to hurt margins.

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