[ausev] Commercial mini cooper conversion braking

[Marc Kohler]

This vehicle was never intended to go into production as configured like
this concept vehicle.  As with all concept vehicles, anything goes.  It was
purely a demonstrator to showcase the performance capability of wheel
motors.  I believe there have been some other concept vehicles since that
only use two of their wheel motors and keep the normal brakes, as they
didn't require 0-60mph in under 5 seconds.

Marc Kohler


-----Original Message-----
From: ausev-bounces at austinev.org [mailto:ausev-bounces at austinev.org] On
Behalf Of Michael Bonard
Sent: Wednesday, October 07, 2009 1:20 PM
To: AustinEV News Announcements and General Discussion
Subject: [ausev] Commercial mini cooper conversion braking

Don't panic!

I read sometime ago that for this car, the kinetic energy recovery 
provides all the electric power needed to activate the motors in a 
braking mode.. The more intense the braking, the more power is available 
to stop the car.. This reminds me of the "wedge brake" principle in the 
old horse carriages, where the kinetic energy of the carriage was used 
(through friction) to further engage the wedge and further increase the 
braking. The only problem I see is that, like the Mini Cooper, there is 
no braking capability at (or near) zero speed.

I do not know how many levels of redundancy they have. This will 
certainly be investigated during the car road worthiness certification 
process.

Michael

red scott wrote:
> It's got NO BRAKES!!!!! What happens when you have an electrical failure?
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