Hi guys, the IQ is going in for certification tomorrow, wish me luck, the IQ flew through the pre-certification warrant of fitness (apart from the conversion stuff, as expected).
Peter from NZ on converting a Toyota IQ to EV.
I've been tinkering away on converting a low mileage Toyota IQ (2012, 16k on the clock, 1020kg after conversion) with a Hyper9 kit from EV West and a 30kw battery pack.
I've made some design decisions that are bound to raise a few eyebrows. The big one is to retain the CVT gearbox including the torque converter! The next is to keep the alternator, AC unit and power steering 😊 Do these design decisions work? “Hell yes!” the car goes like a cut cat (off public roads of course!), as it hasn’t been certified yet. The CVT keeps the Hyper9 in mid rpms while applying smooth, buttery power to the front wheels. That’s not to say that it's tame, if I pull on the hand break on a hit the throttle it will spin the front wheels or drag it’s arse along the tarmac 😊.
The big secret with retaining the CVT is to spoof as much of the original engine sensors as possible and to use the blended Torque and Speed setting in the X1 controller to apply smooth and controlled power and to idle the motor at about 900rpm when the car is stationary. This approach provides oil pressure for the CVT and powers the alternator so that the electric steering remains active. No need for a DC to DC converter! Also no need for extra micro controllers and custome software to make it work.
I don’t have the range and top speed info as the car needs to pass certification before I can take it on longer road trips. I’m keen to hear what the community thinks of my project and the design decisions I’ve made. Cheers Peter
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I've made some design decisions that are bound to raise a few eyebrows. The big one is to retain the CVT gearbox including the torque converter! The next is to keep the alternator, AC unit and power steering 😊 Do these design decisions work? “Hell yes!” the car goes like a cut cat (off public roads of course!), as it hasn’t been certified yet. The CVT keeps the Hyper9 in mid rpms while applying smooth, buttery power to the front wheels. That’s not to say that it's tame, if I pull on the hand break on a hit the throttle it will spin the front wheels or drag it’s arse along the tarmac 😊.
The big secret with retaining the CVT is to spoof as much of the original engine sensors as possible and to use the blended Torque and Speed setting in the X1 controller to apply smooth and controlled power and to idle the motor at about 900rpm when the car is stationary. This approach provides oil pressure for the CVT and powers the alternator so that the electric steering remains active. No need for a DC to DC converter! Also no need for extra micro controllers and custome software to make it work.
I don’t have the range and top speed info as the car needs to pass certification before I can take it on longer road trips. I’m keen to hear what the community thinks of my project and the design decisions I’ve made. Cheers Peter
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Don't know if you can use screenshots or need an actual photo, but after looking up a license plate of the IQ you mentioned the Dutch license registration site gives the 1210kgs you mentioned.
You can look it up yourself on ovi.rdw.nl and then filling in the license plate 98-HSZ-4 (it's one for sale, that's how I found the license plate).
"Gewichten" means weights, but you probably know how to use google translate.
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You can look it up yourself on ovi.rdw.nl and then filling in the license plate 98-HSZ-4 (it's one for sale, that's how I found the license plate).
"Gewichten" means weights, but you probably know how to use google translate.
Toyota NZ will only repeat the NZTA GVM of 1000kg no matter what the manufactured GVM is for all other countries including Japan. You are correct, there were no 1.0 Litre Scion IQ vehicles imported into the US, however all the IQs that were imported into the US, regardless of CC rating all have the same rear suspension components.
I have looked up OEM parts lists for all countries that have imported IQs of any model and they all list the same rear suspension components e.g., chassis designation KGJ10(AJ10 for UK)-BGXNG (2008 to 2016), OEM catalogue number, 4829009C, see attached document.
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I have looked up OEM parts lists for all countries that have imported IQs of any model and they all list the same rear suspension components e.g., chassis designation KGJ10(AJ10 for UK)-BGXNG (2008 to 2016), OEM catalogue number, 4829009C, see attached document.
Attachments
I didn't realise the difference between GVW and GVM is so dramatic, In many cases the local authorities lower the GVW to suit a counties transport regulations, Australia does this to allow heavy vehicles to be driven on a regular drivers’ licence.
I found a couple of legal definitions that put it like this.
GVW is the limit imposed by a counties transport authority and can be changed, mostly by specifying lower per seat weight, Japan uses 55kg, NZ used 80kg on new vehicles and 55kg on imports. LVVTA uses 80kg.
GVM/GVMR is the maximum safe weight limit imposed by the manufacturer and cannot be changed without recertification.
Please let me know if I have this wrong
I found a couple of legal definitions that put it like this.
GVW is the limit imposed by a counties transport authority and can be changed, mostly by specifying lower per seat weight, Japan uses 55kg, NZ used 80kg on new vehicles and 55kg on imports. LVVTA uses 80kg.
GVM/GVMR is the maximum safe weight limit imposed by the manufacturer and cannot be changed without recertification.
Please let me know if I have this wrong
A lot of different terms are used in different countries, and by different people, which is why put descriptions with each of the values which I posted. In general, it's necessary to distinguish between actual weight or mass (either empty or as loaded an operated) and the allowed weight or mass.I didn't realise the difference between GVW and GVM is so dramatic, In many cases the local authorities lower the GVW to suit a counties transport regulations, Australia does this to allow heavy vehicles to be driven on a regular drivers’ licence.
I found a couple of legal definitions that put it like this.
GVW is the limit imposed by a counties transport authority and can be changed, mostly by specifying lower per seat weight, Japan uses 55kg, NZ used 80kg on new vehicles and 55kg on imports. LVVTA uses 80kg.
GVM/GVMR is the maximum safe weight limit imposed by the manufacturer and cannot be changed without recertification.
Please let me know if I have this wrong
The allowed weight (Gross Vehicle Weight Rating in North America) can be limited by technical factors (as determined by the vehicle manufacturer) or limited to a lower value by regulations, and in some cases is limited even further by a choosing to license the vehicle in a lower class than it could physically handle (usually to allow it to be driven by less qualified drivers).
Here you go.
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