Interesting/worrying story from Scotland - ZS with no brakes.

[Gadget Geek]

Even though it maybe safer, it’s generally frowned upon to put your passenger in a case in the boot :-D

Unless you work for the Mafia, then it's actively encouraged.

 

[johnb80]

In order for us to drop the skepticism/cynicism, you would be betting stating what the failures were.

Otherwise it's just fueling it.

Silence is deafening

 

[Tread Softly Terran]

(Rude not to use the roof rack)

 

[johnb80]

It looks like the latest poster with a run away EV has gone the same way as most of the others....... run away!

I wonder why that is ?

 

[Susanna]

It looks like the latest poster with a run away EV has gone the same way as most of the others....... run away!

I wonder why that is ?

It’s disappointing - it would have been interesting to read the results from MG’s diagnostic tests apparently showing 8 faults.

It was an incredibly unlikely scenario, and wouldn’t be the first time a driver’s mistake was blamed on a faulty car.

Let’s see if the poster comes back with an explanation.

 

[Gadget Geek]

"Ghosts in the machine" I wonder? With 8 faults, that would suggest a number of modules being involved. With all these systems running their own code, as Asimov envisioned, eventually there would be an event where an unexpected result occurs.

 

[johnb80]

"Ghosts in the machine" I wonder? With 8 faults, that would suggest a number of modules being involved. With all these systems running their own code, as Asimov envisioned, eventually there would be an event where an unexpected result occurs.

Like accelerator being floored instead of the brake pedal, systems involved visual, motor skills, central nervous system and the brain with a good portion of time and creative aspects of the mind to make a story up ?

Sorry, I shouldn't mock the afflicted, if it looks like a duck, quacks like a duck and waggles like a duck there's a good chance it is a duck though.

 

[Nelly]

I will do this tomorrow as I need to scan the report.


The garage who repaired it told me that the vehicle was safe to drive when they returned it to me on Tuesday. Because i knew I wasnt to blame for the accident i needed proof of there having been something wrong with the vehicle. I booked it in with MG as soon as possible and this is what they came up with. This really is a long story and I am pursing the garage, tesco insurance and the leasing company. Tesco said the vehicle had to go to this garage. MG said it was ok as long as theynused genuine mg parts for the car it would still be under warranty. I see a long road ahead trying to get the garage to say they returned the car when it was unroadworthy etc etc. The scary thing is, why did it fail on so manynthings? How would you ever know? Do you have to have an accident for these things to be picked up? If I accepted it was my fault and took the car back, i would still be at risk of it happening again and could have possibly killed someone!! Thats not being dramatic thats telling the truth.

"Ghosts in the machine" I wonder? With 8 faults, that would suggest a number of modules being involved. With all these systems running their own code, as Asimov envisioned, eventually there would be an event where an unexpected result occurs.

5 modules. I have posted the report.

It’s disappointing - it would have been interesting to read the results from MG’s diagnostic tests apparently showing 8 faults.

It was an incredibly unlikely scenario, and wouldn’t be the first time a driver’s mistake was blamed on a faulty car.

Let’s see if the poster comes back with an explanation.

Ive posted the results. Snide comments dont help. I have a life to live, I dont spend all day on forums answering to sceptics.

It looks like the latest poster with a run away EV has gone the same way as most of the others....... run away!

I wonder why that is ?

Ive posted the reply. I dont spend all day on forums. I have a life and am in the process of dealing with the lease company and MG so dont have time for stupid comments.

 

[tsedge]

5 modules. I have posted the report.

Thanks for sharing the details, that is helpful.

Hmmm... I wonder if this is some kind of comms fault (we are seeing those popping up) which then disabled a bunch of systems and left the car in an unusual state, which could affect braking performance and general behaviour?

I am speculating, but clearly something is faulty here (perhaps one error triggers the others) but even with a fault the car should not behave like this.

 

[johnb80]

Ive posted the reply. I dont spend all day on forums. I have a life and am in the process of dealing with the lease company and MG so dont have time for stupid comments.

Seemingly you have time to make plenty.

Not a single fault there that could be considered dangerous nor would they cause uncontrolled acceleration, nothing life threatening. DVA wont be interested, nor will any of the other authorities.

Thanks for sharing the details, that is helpful.

Hmmm... I wonder if this is some kind of comms fault (we are seeing those popping up) which then disabled a bunch of systems and left the car in an unusual state, which could affect braking performance and general behaviour?

I am speculating, but clearly something is faulty here (perhaps one error triggers the others) but even with a fault the car should not behave like this.

Comms faults recognised and dealt with appropriately (fail safe). It certainly wont cause out of control acceleration / no brakes / runaway.

 

[tsedge]

Comms faults recognised and dealt with appropriately (fail safe). It certainly wont cause out of control acceleration / no brakes / runaway.

We can't be sure of that. Will be interesting to see what the investigation concludes.

 

[johnb80]

We can't be sure of that. Will be interesting to see what the investigation concludes.

You think? Consider common sense applied to the programming, cant see the accelerator pedal due to comms issue, what do you really think the outcome would be, tell the speed controller to speed up or tell the speed controller to stop? In drive by wire situations where physical connection / override isn't present they will always fail safe. I'm not a betting man but I'd put money on this one.

It is also unknown when the faults recorded existed, it could well be after the crash. None of them would appear to be relevant to the actions of the accident and in every case it states 'x' disabled due to comms issue.

 

[tsedge]

You think? Consider common sense applied to the programming, cant see the accelerator pedal due to comms issue, what do you really think the outcome would be, tell the speed controller to speed up or tell the speed controller to stop? In drive by wire situations where physical connection / override isn't present they will always fail safe. I'm not a betting man but I'd put money on this one.

It is also unknown when the faults recorded existed, it could well be after the crash. None of them would appear to be relevant to the actions of the accident and in every case it states 'x' disabled due to comms issue.

I am simply saying we cannot be certain from our arm chairs.

Cars can have strange faults and the braking systems on EVs are new blended tech, not tried and tested to the same degree as conventional brakes. There are enough reports of things like this that I doubt they are all 100% user error.

So I am open minded that it could be a fault with the car, that's all.

 

[MickeySw]

So I am open minded that it could be a fault with the car, that's all.

How confident are you though, that MG
a) will figure out what exactly happened?
b) will admit lability if the car malfunctioned?

 

[Tommy]

While manoeuvring into my car parking space the other day I put my foot on the brake and the car shot forward a foot or so … did I press the accelerator by mistake … ? No way to know for sure but … probably ?

 

[tsedge]

How confident are you though, that MG
a) will figure out what exactly happened?
b) will admit lability if the car malfunctioned?

Not very. But let's see.

 

[johnb80]

While manoeuvring into my car parking space the other day I put my foot on the brake and the car shot forward a foot or so … did I press the accelerator by mistake … ? No way to know for sure but … probably ?

You mean you didn’t look down or have a passenger confirm that you’d pressed the right pedal? ?

 

[tsedge]

Early on with my MG4 I did have cases of poor braking when in ECO mode. Occasionally I would press the pedal and nothing would happen until I really pushed hard. I always drive it in SPORTS mode these days (partly for the better braking response) and I haven't had this happen for a long time, so it may have been fixed in a software update (my car has had a ton of these now). But it is conceivable this could catch someone out in the wrong circumstances.

 

[Tim Green]

Since when has braking efficiency been connected with car eco/norm/sport mode?
I have never heard of such a thing.
I suggest if it is there, its either a fault or just wrong.
It suggests the brake servo is being turned off, why would you want to do that?

 

[mg4mc]

Since when has braking efficiency been connected with car eco/norm/sport mode?
I have never heard of such a thing.
I suggest if it is there, its either a fault or just wrong.
It suggests the brake servo is being turned off, why would you want to do that?

The MG4 (which is what @tsedge has) does not have a servo, it has a computer-controlled pump that does the actual braking, the pedal is not normally directly connected to the brakes themselves. So you can alter the brake pedal force required quite easily in different modes.