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Post by frogeye on Aug 1, 2022 10:31:48 GMT 12
I'm mulling over ideas for the next project, and was considering three wheeled vehicles, either class LE1 or LE2.
Is it possible to certify a vehicle that by either hydraulic or electromotive means tilts the body relative to the ground, and proportional to lateral G-forces, to achieve a result similar to the Carver One or Mercedes F 300 Life Jet?
I have a feeling that an hydraulic implementation may fall foul (amongst others) of NZCCM rule 6.59.2, but I hope I'm wrong 
A hydraulic system fitted to a low volume vehicle must be installed in a such a way that, when the vehicle is being driven at over 20 kph (12 mph):
(a) each hydraulic ram maintains its pressure; and
(b) no transfer of oil between individual corners of the vehicle can occur.
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Post by Chris on Aug 1, 2022 15:00:12 GMT 12
I'm mulling over ideas for the next project, and was considering three wheeled vehicles, either class LE1 or LE2.
Is it possible to certify a vehicle that by either hydraulic or electromotive means tilts the body relative to the ground, and proportional to lateral G-forces, to achieve a result similar to the Carver One or Mercedes F 300 Life Jet?
I have a feeling that an hydraulic implementation may fall foul (amongst others) of NZCCM rule 6.59.2, but I hope I'm wrong
A hydraulic system fitted to a low volume vehicle must be installed in a such a way that, when the vehicle is being driven at over 20 kph (12 mph):
(a) each hydraulic ram maintains its pressure; and
(b) no transfer of oil between individual corners of the vehicle can occur.
This sounds a very complex question, my best suggestion would be to complete a Concept Approval application and send it to TAC for their consideration- lvvta.org.nz/approvals.html#conceptCheers |
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Post by frogeye on Aug 1, 2022 20:48:19 GMT 12
Hi Chris.
Thanks for the quick reply - at least it wasn't an outright 'no'!
When submitting a Concept Approval application, is it the start of a dialogue around how the concept idea might be realised , or is it a yes/no decision based on the information supplied in the application?
Many thanks,
Paul
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Post by Chris on Aug 2, 2022 8:04:14 GMT 12
Hi Chris. Thanks for the quick reply - at least it wasn't an outright 'no'! When submitting a Concept Approval application, is it the start of a dialogue around how the concept idea might be realised , or is it a yes/no decision based on the information supplied in the application? Many thanks, Paul The intended purpose of a Concept Approval Application is for a vehicle when the project is just at concept or basic idea stage. This process is generally intended for projects that are out of the ordinary, or are particularly unique in some way, particularly where the project, or some aspects of the project, is pushing technical boundaries of time-proven and known modification and construction practices. The Concept Approval process is a voluntary one, and is not a mandatory part of the LVV system. The objective of making this process available is to provide builders with confirmation as to whether or not their idea will in fact be able to be legally registered for road use in New Zealand. Likely users: A person who uses the Concept Approval process is likely to be someone who is considering building something very unusual or cutting-edge – such as a full-bodied motorcycle – and wants assurance that such an idea is legally and practically feasible, so that the idea can be confidently progressed into a proper plan. It won't provide you the information about how to build it or specific engineering advice, it is more of a confirmation that what you propose to build will fit within the framework of low volume vehicle requirements or if not then whether there is sufficient engineering justification provided to proceed. |
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v8e36
Full Member
Posts: 28
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Post by v8e36 on Aug 19, 2022 12:38:53 GMT 12
I'm mulling over ideas for the next project, and was considering three wheeled vehicles, either class LE1 or LE2. Is it possible to certify a vehicle that by either hydraulic or electromotive means tilts the body relative to the ground, and proportional to lateral G-forces, to achieve a result similar to the Carver One or Mercedes F 300 Life Jet? I have a feeling that an hydraulic implementation may fall foul (amongst others) of NZCCM rule 6.59.2, but I hope I'm wrong A hydraulic system fitted to a low volume vehicle must be installed in a such a way that, when the vehicle is being driven at over 20 kph (12 mph):
(a) each hydraulic ram maintains its pressure; and
(b) no transfer of oil between individual corners of the vehicle can occur.
Curiously I have a factory Toyota that does exactly that, a 1991 Toyota Soarer with a hydraulic suspension setup, no coils, no sway bars, just 4 hydraulic dampers in each corner so when you turn / accelerate / brake, the pressure changes to allow the car to counter the pitching or rolling so the car stays level, doesnt quite go as far as leaning into the corner beyond what it needs to stay level but it's still quite a unique sensation to drive. |
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