Used to call them service stations here as well, but that was when they not only filled your tank but wiped the windshield and checked your oil. One of my first jobs and was for many a young lad.In Australia we used to call petrol stations 'service stations', because the man came out and filled up your car
Exactly - the unification of the battery across all manufactures isn't a reasonable thing to implement.roon wrote: ↑07 Jul 2018, 19:34Downside would be geometric uniformity. Some standard, or set of standard, battery shapes would be required. Fuel suppliers don't have to deal with this because fuel is a liquid, and conforms to any size or shape of fuel tank. The equivalent would be an oil change shop needing to stock dozens or hundreds of oil filter sizes and shapes. If there was one, or a handful, of standard oil filter sizes, their supply chain, inventory, and purchasing would simplify and enable greater profit. Battery suppliers would face similar limitations unless auto manufacturers would agree to standardize the largest, heaviest, most expensive singular component of the EV.
Everything needs to be unified. You can't put a 300V battery in a 400V car. You can't put an oil cooled battery in a water cooled car, you can't put a battery that can only charge at 50kW in a car with 100kW of regen braking. If your BMS does not use a unified communication protocol the battery won't be able to communicate with the car to tell you how much energy is left or if it is about to overheat.Big Tea wrote: ↑07 Jul 2018, 21:06The batteries do not need to be unified, just the fittings. It there are 3 rails at XX/XX/XX with terminal fixtures of a set type at position aaa/aaa/aaa and supply spec is as art abc, the physical size as long as smaller than outline does not matter nor the rating of the batter. You just chose then as you would Shell, Esso, Elf etc.
The powerpack only has to charge the onboard battery pack.
Surely as long as the maximum cube dimensions and voltage and position of the terminals is set everything else can be handled by the electronics of the car?Tim.Wright wrote: ↑07 Jul 2018, 21:19Everything needs to be unified. You can't put a 300V battery in a 400V car. You can't put an oil cooled battery in a water cooled car, you can't put a battery that can only charge at 50kW in a car with 100kW of regen braking. If your BMS does not use a unified communication protocol the battery won't be able to communicate with the car to tell you how much energy is left or if it is about to overheat.Big Tea wrote: ↑07 Jul 2018, 21:06The batteries do not need to be unified, just the fittings. It there are 3 rails at XX/XX/XX with terminal fixtures of a set type at position aaa/aaa/aaa and supply spec is as art abc, the physical size as long as smaller than outline does not matter nor the rating of the batter. You just chose then as you would Shell, Esso, Elf etc.
The powerpack only has to charge the onboard battery pack.
Absolutely everything that interfaces with the rest o the car needs to be unified otherwise it simply won't work.
The "fittings" are the easiest part. Everything else is the roadblock.
Canbus?Just_a_fan wrote: ↑07 Jul 2018, 22:39One could develop an international standard to which all car manufacturers comply. Of course, you're more likely to attain world peace first...
Ok, I'll give you that but I meant in replaceable battery systems which, as has been pointed out, is somewhat more involved than a bit of wiring i.e. CANBUS.Big Tea wrote: ↑07 Jul 2018, 22:46Canbus?Just_a_fan wrote: ↑07 Jul 2018, 22:39One could develop an international standard to which all car manufacturers comply. Of course, you're more likely to attain world peace first...
And I have to reciprocate by admitting it was not negotiated, just the USA said if you want to sell here you use it.Just_a_fan wrote: ↑07 Jul 2018, 22:52Ok, I'll give you that but I meant in replaceable battery systems which, as has been pointed out, is somewhat more involved than a bit of wiring i.e. CANBUS.Big Tea wrote: ↑07 Jul 2018, 22:46Canbus?Just_a_fan wrote: ↑07 Jul 2018, 22:39One could develop an international standard to which all car manufacturers comply. Of course, you're more likely to attain world peace first...