Discussions today with NC Engineering
resulted in a plan to start work on the build next week.
This is going to be the 100 battery chassis (120kWh)
a truly huge pack which means vehicle range will be immense!
Predicted range is 300-400 miles at motorway speeds (70-80mph) and a practical range up to 1,000 miles
at town speeds (30-40mph).
Also as the battery is so high capacity this means it will not need replacing for at least 350,000 miles
(beyond the life of the car).
The price is still predicted to be low (£20,000) due to it's low cost advanced lead-acid battery technology.
Today Turbo Electric is working with NC Engineering
to build a new prototype.
This will be a long range vehicle (400 miles per charge) and has a target retail price of around £20,000.
Work is predicted to start in September with the chassis.
This is in preparation for the British Motor Show next year where the vehicle should be on a stand for all to see.
Thanks to an old backup and the WayBack Machine
this site is finally being restored.
After my cloud facility died I have been slowing restoring this site back as much as I can.
I created a new site on which work was to continue while this site was being restored here
There are still parts missing and perhaps permanently lost, but it seems most of the site is recovered.
Today the first full prototype powertrain was tested in an on-road drive in the EV0b project.
This is a practical test of a vehicle in use with a prototype electric power train.
It was just a short drive with maneuvering, reversing, accelerating at full power and harsh braking.
A milestone event as this represents moving from bench testing to a real vehicle.
Now the final design is realised and research is being completed, the controller needs to be refined and tested.
Due to the new design of controller a full SPICE model
is being developed.
This full prototyping, including PCB testing of the development various stages, is time consuming, but necessary.
This is needed to debug and tune the controller and achieve the target of a low-cost, highly-efficient, powerful, robust controller.
The Class-D push-pull design of the new controller will now incorporate trinary (3-state) logic
This is the first controller to do this.
This means the controller can be very efficient using 3 output BLDC states per phase, but still be safe from shoot through by design.
Today we have a successful test of the class-D push-pull controller circuit.
This is a simple controller design which meets the design specifications required for a production controller.
Next stage is to refine, build and test the full production controller and move to in vehicle testing.
Over the last month a high speed link to be used in the cars is being developed.
This is almost complete and will be designed to work with the 3D display fitted to the cars.
In fitting with the philosophy of the project this is using readily available equipement.
In this case it is using standard PC networking
so this makes it very easy for diagnosis by the average computer user.
More achievements are available on the project page