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<div class="moz-cite-prefix">Vazeni, ja jsem vam sve komentare posla
vcera do konference. Bohuzel asi vas moderator spi a nejak se to
zaseklo. Takze pro moderatora FSE konference, klidne muj mail ze
vcerejsi noci zahod. Mohl jsem jit klidne spat o hodinu driv:-(<br>
Tyto prelozene texty jsou o moc lepsi. Dovolil bych si jenom par
komentaru k poslednimu plakatu.<br>
<br>
1) V Technical details vam chyby texty co je BLDC, 40 pole with
hall ....<br>
4100 at fully charged ??? proboha co? nabita baterka nebo pri
plnem utoku?<br>
kosmeticka pripominka moment se udava v jednotkach Nm stejne
jako vykon v kW chapu ze to nevypada graficky hezky, ale proste je
to uzivane znaceni.<br>
<br>
2) sekce motor controller<br>
We use self-made motor controller optimized for our particular
motor. Because of <br>
very low impedance of our motor windings (60µH) the control
algorithm is based on <br>
hysteresis control method with limited switching frequency. As
a feedback it uses hall <br>
sensors from the motor and <b> it can also drive sensorless.</b><br>
<br>
co to ma znamenat??? je bezsenzorove rizeni... sensorless control.
<br>
Podle meho by spravne melo byt neco ve smyslu<br>
As a feedback it uses hall sensors mounted in the motor, the
sensorless control is possible too.<br>
<br>
Communication with other devices is done by CAN bus and
information about <br>
pedal position is recieved by the extra RS232 interface because of
safety reasons. <br>
<b>These communication interfaces can also be USB and wireless.</b>
LCD 4 line display <br>
shows status of motor controller with the most important system
variables like motor <br>
temperature, <b>controller cooler temperature</b>, RPM, <b>T</b>ractive
voltage and current, error <br>
messages. It also has features like datalogging variables to
internal memory and a <br>
lot of protections. The motor controller was developed as
an universal motor <br>
controller, which can drive all types of motors as for example
BLDC, PMSM and AC <br>
induction motor. All depends on the firmware which is actually
used.<br>
<br>
<b>These communication interfaces can also be USB and wireless....</b>To
tam absolutne nepatri.. akorat to mate ctenare. Pouzivate to? ne<br>
<br>
controller cooler temperature... co to je? vy chladite procesor?
nema tam byt converter?<br>
<br>
Tractive ... proc velky T? vsude jsou maly pismenka tak maly..<br>
<br>
Vic uz nehledam. Hezky den, H.<br>
<pre class="moz-signature" cols="72">S pozdravem Honza Bauer</pre>
Dne 12.9.2012 3:08, Martin Borýsek napsal(a):<br>
</div>
<blockquote cite="mid:00b901cd9083$111162c0$33342840$@gmail.com"
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<div class="WordSection1">
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Plakáty
jsou hotové a nahrané na uloz.to i na FTP. Heslo pro uloz.to
je CVUT (s velkýma písmenama, bez diakritiky).<br>
<br>
</span><a moz-do-not-send="true"
href="http://www.uloz.to/xHiyiCh/plakaty-eps-zip">http://www.uloz.to/xHiyiCh/plakaty-eps-zip</a>
<span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">(ve
vektorech)</span><br>
<span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><a
moz-do-not-send="true"
href="http://www.uloz.to/xvVHDnu/plakaty-cdr-zip">http://www.uloz.to/xvVHDnu/plakaty-cdr-zip</a>
(originál Corel Draw)<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><a
moz-do-not-send="true"
href="http://www.uloz.to/x4qsQrv/plakaty-pdf-zip">http://www.uloz.to/x4qsQrv/plakaty-pdf-zip</a>
(export do PDF)<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Snad
tam nejsou ¾ádné dal¹í chyby, do tisku to jde ráno a doufám,
¾e se to stihne.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">
Jiøí Holeèek [<a class="moz-txt-link-freetext" href="mailto:akrijos@gmail.com">mailto:akrijos@gmail.com</a>] <br>
<b>Sent:</b> Tuesday, September 11, 2012 11:12 PM<br>
<b>To:</b> Martin Borýsek<br>
<b>Cc:</b> <a class="moz-txt-link-abbreviated" href="mailto:fse@fel.cvut.cz">fse@fel.cvut.cz</a><br>
<b>Subject:</b> Re: [FSE] Plakáty do Itálie - beta verze<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#222222">About
The Team</span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#222222"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#222222">Formula
SAE is a student design competition which originated in
the U.S. in 1981. Since 1998 the competition known as
Formula Student has begun in Europe. The goal of the
competitors is to design and develop a formula car. The
final evaluation also takes into account the costing and
manufacturing technology problems including the carbon
dioxide footprint of the whole design. All these
parameters has to be considered by the student team
playing a role of a fictive company which develops and
sells this final product. The car has to be inexpensive,
reliable and easily maintanable in order to succeed at the
competitive market. The target customer is an
unprofessional weekend autocross or sprint racer. The
production plan is to meet a demand of 1000 units per
year.<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#222222">The
time spent by students on this project is about 35 000
hours every year.<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#222222"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#222222"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#222222">FSE0.1 Prototype</span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#222222"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#222222">The
spatial tubular frame is made from the structural steel.
Its welding was performed using MAG method and the final
frame was reinforced using honeycomb aluminium panels.<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#222222"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#222222"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#222222">Frame</span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#222222"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#222222">The
first generation car FSE.01 designed by CTU CarTech
Electric Team is based on hybrid chassis which are made
both from S235 tubular steel and EN AW 6082 aluminium
alloy water cut panels. The main space frame is welded
using MAG technology and subsequently reinforced using
aluminium honeycomb panels glued into the frame. The rear
part of the chassis made from the aluminium alloy is
welded using TIG technology and bolted to the main space
frame. This hybrid chassis, where the aluminium honeycomb
panel is used as a main firewall component, provides a
very safe cockpit for the driver. For the best driver's
protection a 6-point safety belt is used. The car's bonnet
is manufactured from the glass fibre composite.</span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#222222"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#222222"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#222222">Suspension</span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal"><span
style="font-family:"Arial","sans-serif";color:#222222">Both
axles are using independent and adjustable suspension
system in order to provide an appropriate dynamic and
handling car characteristics. The axles are equipped
by a push-rod suspension type. The forces acting on the
suspension are transmitted into the custom made shock
absorbers via rocker arms. In order to increase and
control the axle stiffness anti-roll bars are installed on
both axles. The design of the whole chassis was subjected
to the FEM analysis in order to ensure the required
fatigue life.</span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">Brakes & steering<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">FSE.01 brake system uses two independent
hydraulic circuits equipped with adjustable biasing. The
front wheels are provided by disc brakes mounted on the
front uprights. Willwood GP320 front brake calipers are
coupled with brake discs having an effective diameter of
223.4 mm. The rear disc brakes are mounted to the frame in
order to reduce the rear unsprung mass. AP<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Racing CP4227 rear brake calipers act on
the brake disc equipped with an effective diameter of 194
mm. <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<div>
<p class="MsoNormal">Above the driver's legs there is a
mechanical steering system which includes RSK Trade cross
cart steering rack with the ratio 90 mm displacement of
the rack/ 360deg of steering wheel rotation.
Steering wheel, which is made from glass fibre composite,
includes electronic features showing the required data to
the driver.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">Battery Pack<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">We can proudly state that the energy
needed for the propulsion of the vehicle is stored an
accumulator pack of our design. This battery pack
contains Li-Pol accumulator cells with an electrical
capacity 40 Ah per each cell. The total number of the
cells is 54 and the energy stored in the whole
accumulator pack is as high as 8 kWh. The accumulators
can be disconnected from the inverter by AIR contactors
at any time. Two AIR contactors were used in order
to fulfill the FSE rules. These two contactors can
operate in case of both high voltage and high current
event. All accumulator cells real-time monitored by the
battery management system which is also used for the
accumulator pack cooling management. The accumulator
pack can be always disconnected manually at any
circumstances.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
</div>
<div>
<p class="MsoNormal">Cell Distribution Scheme<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">The accumulator pack contains six
accumulator units (stacks) containing less than 5 MJ
energy each. These stacks are connected in series. In
every stack there are 9 accumulator cells in total. Each
cell is equipped by a temperature sensor providing the
increased safety of the whole accumulator pack. The
container of every stack is manufactured from
a self-extinguishing material in order to ensure desired
degree of safety.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">Mounting and safety<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">The accumulator pack frame is a TIG
welded aluminium structure. This design provides the
required structural rigidity and the desired accumulator
cells protection. This frame is mounted to the steel
chassis of the car.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">The weight of the final accumulator
pack is 84 kg. The mounting of the accumulator pack has to
withstand forces generated by a 20 g deceleration such
that the accumulator container does not enter the driver’s
cockpit area and therefore this loading path is crucial
for the safety of the driver. The mounting has to be able
to bear a loading generated by a deceleration of 10 g in
all other directions.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">Tak jsem to udìlal a¾ po battery pack.
Zabralo mi to nìco málo pøes hodinu, ten zbytek u¾ dneska
do pùlnoci nestihnu, tak aspoò máme nìco. Mo¾ná tìch
informací tam je pak dál a¾ moc. Musí to taky trochu
vypadat tak aby se to lidem chtìlo èíst, kdyby se to
zkrátilo a dalo vìt¹í písmo tak si myslim, ¾e by to
neu¹kodilo.<o:p></o:p></p>
</div>
</div>
</div>
<br>
<br>
__________ Informace od ESET Smart Security, verze databaze 7468
(20120911) __________<br>
<br>
Tuto zpravu proveril ESET Smart Security.<br>
<br>
<a moz-do-not-send="true" href="http://www.eset.cz">http://www.eset.cz</a><br>
<br>
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__________ Informace od ESET Smart Security, verze databaze 7468 (20120911) __________
Tuto zpravu proveril ESET Smart Security.
<a class="moz-txt-link-freetext" href="http://www.eset.cz">http://www.eset.cz</a>
</pre>
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