Need a cheap (£7,000) viable electric car?
100 mile range and motorway speeds in a family car?
Think it can't be done?
Have a look around the car and see the technology in the virtual showcase
See the patent motor, controller and hybrid technology
which will make the Mass-EV unique.
See animations of the car design and the engineering
See the project progress
including full details of the mechanics, electronics and software.
See also full details of the controllers and motors of the Toyota Prius
(including exclusive previously unreleased Prius specifications
) in the R&D program
Total profit after 5 years nearly £47 million with an initial investment of £1,110,000.
Mass-EV Project Plan
Today the controller technology is being taken in a new direction.
There is a significant overlap between the technology of class-D audio power amplifiers and AC synchronous motor controllers.
A project to test a new kind of class-D push-pull 3-phase controller has been started.
Also the Class-D amplifier technology is quite mature so components are highly available and cheap.
This will also be unique Turbo-Electric technology and means simpler electronics
can be used so reducing the cost.
This is the unique combination of the Electromagnetic Brushless DC motor and the Simple Split Rail controller.
Both of these are being also independently patented by Turbo Electric Ltd.
The arrangement provides for the ability to connect the 3-phase stator circuit in series with the exciter stator (in the Electromagnetic Brushless DC motor).
This is unique Turbo Electric Ltd technology which provides a powerful yet physically small and cheap electric motor.
The new controller configuration is being tested and early results show it works as expected.
This will provide an effective solution for piston engine car conversion to hybrids using small very powerful hub motors.
The Synchronous Torque
software is being developed to put with less strain on the expensive high power components, thus reducing the overall cost of the controller.
This is designed to work at low PWM frequencies so less power is dissipated by the IGBTs (making the controller more efficient) and yet still provide smooth and accurate control.
As a side effect it will also mean the driver will be able to hear the power transmitted to the motor, as will pedestrians and other road users.
The sound from the motor will be similar to a quiet turbo-diesel engine where the turbo sound will be more pronounced at higher power and torque.
This will be used in the test vehicle once it is converted to use a BLDC motor.
The low cost controller is now moving into the field testing phase.
This means the controller will be running actual motors on real vehicles on real roads.
A simple PWM controller is currently being tested on a series wound motor powering a small van.
This controller will power the van to 40mph using a 8kW motor and will retail at around £100-£200.
The BLDC motor controller will be around £500 retail and will be tested on a 30kW motor fitted to the same van.
It is expected the van will have a top speed of at least 80mph.
As this project is moving quite slowly, we've decided to try crowd funding.
This funding will be used to employ an additional engineer for a short period to move the Mass-EV project on.
A target of £15,000 set on Kickstarter
should allow turbo-electric to hire a graduate engineer from the local university and give a good entry on a CV.
More achievements are available on the project page