Thread: EV general discussion

Originally Posted by Graeme

I realised today that my MHEV L405 slowed from 60 kph in traffic to almost stopped for traffic lights in quite a short distance without using brakes and therefore no brakelights for the vehicle behind!

Do you know the brake lights weren't on, or assuming?

Tony

Originally Posted by TonyC

Do you know the brake lights weren't on, or assuming?

Tony

Good question. I know that the auto retarder on Scanias will illuminate them. I would assume the same here.

I just assumed that the brake lights weren't illuminated but I'll find a way to check. I know that if the EV system is disabled then there's no regenerative braking and the vehicle slows less than my previous 4.4TDV8 L322, which is why I re-enabled the EV system.

BYD has decided to cut out it's aussie distributor and will be direct only now.

https://www.drive.com.au/news/byd-go...stributorship/

Originally Posted by Graeme

I realised today that my MHEV L405 slowed from 60 kph in traffic to almost stopped for traffic lights in quite a short distance without using brakes and therefore no brakelights for the vehicle behind!

There is no requirement in the ADR's (Yet) or any global standard that requires the brake lights to come on without the brake pedal being depressed so this is a known issue worldwide but the OEM's don't seem to be doing anything about it. You would think it's an easy fix using the vehicles accelerometer to activate the brake lights if it slows down quicker than a preset amount on regen but nope... There's a good video on Youtube from Technology Connections about it.

Originally Posted by Homestar

There is no requirement in the ADR's (Yet) or any global standard that requires the brake lights to come on without the brake pedal being depressed so this is a known issue worldwide but the OEM's don't seem to be doing anything about it. You would think it's an easy fix using the vehicles accelerometer to activate the brake lights if it slows down quicker than a preset amount on regen but nope... There's a good video on Youtube from Technology Connections about it.

The first thing I did when I got the car home was check the brake lights came on when you lifted on the throttle into regen. Yes the tesla system does use them and it works well as it's quite normal to not use the brake pedal at all. Or else every tesla on the road would have had multiple rear enders.

Apparently some other manufacturers not so much. But few have the one pedal thing working as well.

Originally Posted by Homestar

There is no requirement in the ADR's (Yet) or any global standard that requires the brake lights to come on without the brake pedal being depressed so this is a known issue worldwide but the OEM's don't seem to be doing anything about it. You would think it's an easy fix using the vehicles accelerometer to activate the brake lights if it slows down quicker than a preset amount on regen but nope... There's a good video on Youtube from Technology Connections about it.

Mine has regen braking at Off. LVl 1 2 or three and full one pedal Driving. The brake lights activate for all except off of course
Cut and paste from MG in EU

One pedal driving

In the “most powerful” regeneration mode, the braking effect is even such, that you hardly need a brake pedal anymore. This is also known as “one pedal driving”. You will feel very comfortable with this new way of driving after a short while.
Depending on the selected regenerative braking mode, the braking lights will light up a soon as you lift the accelerator pedal and the regenerative braking kicks in with a certain braking force.


Mines set to LVL 3 regen 99% of the time. I barely have to use the brake with that.

I had to drive in some commuter type traffic recently. I was in the old Tojo 'tilly and minding my own business, when then was a sudden lack of traffic progression and several cars in front of me having to brake severely. I came to stop, quite quickly as well, about 1 metre, or a bit less, behind an EV (I'm thinking Kia/Hyundai people mover type). This EVs hazard lights flashed a few times, on my approach. Was this because of the 'tilly's proximity or the sudden braking of the EV? I'm certain the EV was at a standstill when it occurred.