Starter Battery Drain; How to stop ECU's etc from consuming battery when door opens?

[Eric]

Why can’t BMW sell to the military? A quick google search didn’t bring up anything about this. Is it a principle or something going back to the war?

I have something in my mind that it was the way the factory workers were treated during the war production of vehicles. No doubt someone in the know will correct me please

 

[Jackattack13]

The S/W and electrics of the vehicle are clearly the Achilles heel of the vehicle. Why would they design a vehicle whose whole purpose is to get outdoors and far away from society, that dies after 2 or 3 days of camping in the bush? Poor engineering, poor design, thrown together by inexperienced engineers. I hope they can get their act together in future software releases.

 

[ADVAW8S]

The S/W and electrics of the vehicle are clearly the Achilles heel of the vehicle. Why would they design a vehicle whose whole purpose is to get outdoors and far away from society, that dies after 2 or 3 days of camping in the bush? Poor engineering, poor design, thrown together by inexperienced engineers. I hope they can get their act together in future software releases.

I disagree. The issue with infotainment system is not poor engineering but the long boot up time of systems and the rise of impatient drivers. Turn off your laptop, full power down. Now go into your car. Turn your car on. Now turn your laptop on and see how much faster for your car infotainment system versus your laptop. The difference is what people would be bitching and moaning about. To solve the average person complaining, all car manufactures have designed their systems to come awake as soon as you unlock the door. So as you are walking to the car and press the button, the system starts booting up. So by time you ass is in the seat, it is near the end of booting up. This is a drain on the battery system as it brings everything on line like HVAC, all your sensors even your seating position if it is coded to your key. When you get out, the car has no clue if you are done for night or grabbing something quick. So the car waits a good 10 mins before shutting the system down. During that time, it is keeping everything ready to roll if you were to open the door to drive. The way auto manufacturers have addressed the I'm done for the day or I am stopping quickly is double lock. The problem is most people are not aware or read the manual on locking doors. If you click the lock button on your key fob. It will lock the door and set the alarm. Now click it again, it tells the system you are done for the time being. This puts the car to sleep and reduces battery drain.

 

[landmannnn]

There's also a requirement in some countries that the reverse camera must be able to come on within a short number of seconds on engine starting.
So you can't wait for the ignition key before starting the various systems.

 

[HereinDaRockies]

I disagree. The issue with infotainment system is not poor engineering but the long boot up time of systems and the rise of impatient drivers. Turn off your laptop, full power down. Now go into your car. Turn your car on. Now turn your laptop on and see how much faster for your car infotainment system versus your laptop. The difference is what people would be bitching and moaning about. To solve the average person complaining, all car manufactures have designed their systems to come awake as soon as you unlock the door. So as you are walking to the car and press the button, the system starts booting up. So by time you ass is in the seat, it is near the end of booting up. This is a drain on the battery system as it brings everything on line like HVAC, all your sensors even your seating position if it is coded to your key. When you get out, the car has no clue if you are done for night or grabbing something quick. So the car waits a good 10 mins before shutting the system down. During that time, it is keeping everything ready to roll if you were to open the door to drive. The way auto manufacturers have addressed the I'm done for the day or I am stopping quickly is double lock. The problem is most people are not aware or read the manual on locking doors. If you click the lock button on your key fob. It will lock the door and set the alarm. Now click it again, it tells the system you are done for the time being. This puts the car to sleep and reduces battery drain.

Nah.. it’s poor engineering.

First of all, You cannot say the boot up performance in our grenadier is the ultimate in performance potential. They attempted to shorten the lead time to rear camera availability. Decided that they need to eagerly boot up the infotainment system. When doors are triggered.

Second of all, you can tell they did a hack job - When door opens/close triggers the infotainment, it also triggers the alert system - service reminder, fuel reminder, etc. There is literally no use case where opening my cargo door requires my car to alert me on upcoming oil change.

With more attention to detail, Ineos could have deferred the fuel. and service reminder to trigger when vehicle starts, not to trigger when door opens/shuts. They could have trivially buffered the fuel and service reminder events, and emit them upon vehicle startup. That would have been a much more elegant solution.

They very obviously took a shortcut. Sensible approaches were avoided to optimize for speed-to-market and reduced development cost.

Imagine you are camping and in the middle of the night you open the door to wee - guess what ? “BONG! Change your oil in 80 days!”

 

[landmannnn]

Nah.. it’s poor engineering.

First of all, You cannot say the boot up performance in our grenadier is the ultimate in performance potential. They attempted to shorten the lead time to rear camera availability. Decided that they need to eagerly boot up the infotainment system. When doors are triggered.

Second of all, you can tell they did a hack job - When door opens/close triggers the infotainment, it also triggers the alert system - service reminder, fuel reminder, etc. There is literally no use case where opening my cargo door requires my car to alert me on upcoming oil change.

With more attention to detail, Ineos could have deferred the fuel. and service reminder to trigger when vehicle starts, not to trigger when door opens/shuts. They could have trivially buffered the fuel and service reminder events, and emit them upon vehicle startup. That would have been a much more elegant solution.

They very obviously took a shortcut. Sensible approaches were avoided to optimize for speed-to-market and reduced development cost.

Imagine you are camping and in the middle of the night you open the door to wee - guess what ? “BONG! Change your oil in 80 days!”

You are not wrong.
However, from experience of spending huge sums of money on systems development, even the global leading companies are completely incapable of delivering a fully fit for purpose solution.
I suspect that IA made the school boy error of assuming that the developers knew how to give the required solution.