efeballi
Well-known member
Hello all,
My country passed a law, allowing a hybrid to pay less taxes. I've always been intrigued by the idea of having a hybrid car, so I thought maybe it'll be doable.
So the idea originally is,
-9 kWh underboot battery
-Two 60 kW in-wheel motors
-Necessary electronics (inverters etc.) on other available spaces of the car
I summed up the costs to be in the $7-8000 region with some margin for unexpected stuff. With the reduced taxes I'll (hopefully) recoup this. Not to mention the savings in fuel (which is crazy expensive here).
However, I have some reservations in this config, those being:
-inwheel motors are circa 20 kg in (unsprung) weight, this will adversely affect handling
-inwheel motors generally don't leave enough space for brakes, for those cases they are offering a 2002 Opel/Vauxhall Astra rear drum brake integrated to the assembly, adding 6 kg (integration of this brake to the car?)
-how will ESP play with powered rear wheels?
-engine-off driving would be very nice and is actually one of my goals, how could I power the car systems (brake vacuum, power steering, cooling etc.)? I've been googling for electric powered substitutes but so far found nothing
In case the in-wheel motors are a no go, another option that I thought of is to fit a Golf 4Motion/Altea Freetrack rear axle (w/o propshaft) and power the wheels using a single electric motor, better if clutched. This would have the obvious benefits of having less unsprung weight and the ability to use normal brakes, not to mention simpler electronics to power one electric motor instead of two.
So I've been mentioning potential drawbacks, here are the potential benefits:
-5.6 sec 0-60 time (stock 9.8), limited by the power cap of the battery
-up to 15 miles electric range
-30% less fuel used in a 100 mile trip
Obviously the economy gains are reduced the longer the trip gets.
The battery pack will be charged at home every night and also through regenerative braking.
This all sounds lunatic, I know, feel free to shoot down my ideas.
Thanks
My country passed a law, allowing a hybrid to pay less taxes. I've always been intrigued by the idea of having a hybrid car, so I thought maybe it'll be doable.
So the idea originally is,
-9 kWh underboot battery
-Two 60 kW in-wheel motors
-Necessary electronics (inverters etc.) on other available spaces of the car
I summed up the costs to be in the $7-8000 region with some margin for unexpected stuff. With the reduced taxes I'll (hopefully) recoup this. Not to mention the savings in fuel (which is crazy expensive here).
However, I have some reservations in this config, those being:
-inwheel motors are circa 20 kg in (unsprung) weight, this will adversely affect handling
-inwheel motors generally don't leave enough space for brakes, for those cases they are offering a 2002 Opel/Vauxhall Astra rear drum brake integrated to the assembly, adding 6 kg (integration of this brake to the car?)
-how will ESP play with powered rear wheels?
-engine-off driving would be very nice and is actually one of my goals, how could I power the car systems (brake vacuum, power steering, cooling etc.)? I've been googling for electric powered substitutes but so far found nothing
In case the in-wheel motors are a no go, another option that I thought of is to fit a Golf 4Motion/Altea Freetrack rear axle (w/o propshaft) and power the wheels using a single electric motor, better if clutched. This would have the obvious benefits of having less unsprung weight and the ability to use normal brakes, not to mention simpler electronics to power one electric motor instead of two.
So I've been mentioning potential drawbacks, here are the potential benefits:
-5.6 sec 0-60 time (stock 9.8), limited by the power cap of the battery
-up to 15 miles electric range
-30% less fuel used in a 100 mile trip
Obviously the economy gains are reduced the longer the trip gets.
The battery pack will be charged at home every night and also through regenerative braking.
This all sounds lunatic, I know, feel free to shoot down my ideas.
Thanks