Toyspeed.org.nz Message Board

by **iOnic** » Fri Oct 02, 2009 7:47 am

Mr Revhead wrote::P wondered if that was it
at least you didnt get the wrong hole

No such thing as the wrong hole - just the wrong time

by **dnalunchie** » Fri Oct 02, 2009 7:55 am

that makes baby jesus cry....

by **malc** » Fri Oct 02, 2009 10:44 am

not that bad

by **Adamal** » Fri Oct 02, 2009 10:49 am

dnalunchie wrote:that makes baby jesus cry....

But Jesus is dead.

by **celica_xr9145** » Fri Oct 02, 2009 10:51 am

Razz wrote:not that bad

I think if you remove them doors and add normal doors it would look much better but still dont like it

by **Lurkin** » Fri Oct 02, 2009 11:14 am

The hybrid also features regenerative braking that uses kinetic energy to recharge the on-board lithium-ion battery that provides the electric power.

How does this work? bit of a new one to me..

by **Boost_4_Life** » Fri Oct 02, 2009 11:52 am

fancy alternator :lol:

by **Adamal** » Fri Oct 02, 2009 12:56 pm

Roy wrote:
The hybrid also features regenerative braking that uses kinetic energy to recharge the on-board lithium-ion battery that provides the electric power.

How does this work? bit of a new one to me..

Its the same way the Prius works.

Basically, its a 2 way electric motor. Pump some power through it, it creates a rotating force. Do it the other way by putting a rotating force into it, it pumps out electricity.

by **sergei** » Fri Oct 02, 2009 1:19 pm

Ditch the doors and it is cool with me.
Remember it is concept, as with concepts it will either be "normalized" or ditched entirely.
I wish they would ditch the gearbox driven directly by petrol motor entirely (and ditch petrol motor at same time).
Much better to have a small diesel motor (~25-100kW) driving generator which in turn charges small battery pack and drives the electric motors (say 4x50kW or 2x100kw with diffs). This way complexity of the system is reduced (remember the car already comes with electric motor, battery pack and generator, but we are ditching mechanical gearbox).
Electric motors don't need conventional multi-step gearbox, at most they will need a reductor (one gear set), or a diff. which also is a reductor (if one motor is used per axle). No clutch is needed either, electric motors don't stall in common sense, they operate from 0 rpm, where the torque is very flat and linear, while power curve is linearly climbing up. Also 100kW electric motor can weigh a fraction of a 100kW internal combustion motor.
If you account mechanical losses in mechanical gearbox, you will find also electrical transmission is much more efficient and robust.
All big rigs (quarry vehicles and trains) don't have mechanical transmission. They have electrical generator and in-hub motors (in case of quarry vehicles) that double up as brakes.

by **Mr Revhead** » Fri Oct 02, 2009 1:23 pm

what quarry vehicles have electric motors in the hubs?
I know Volvo have just done a hybrid loader. However in not sure what configuration that is, everything I'm used to (which isnt much yet!) is all hydraulics, ie hydraulic motors in the hubs

by **GTCRSHR** » Fri Oct 02, 2009 1:40 pm

why hasnt some come out with ...

ITS THE NEW AE86

by **FLAWLES** » Fri Oct 02, 2009 1:59 pm

Mr Revhead wrote:what quarry vehicles have electric motors in the hubs?
I know Volvo have just done a hybrid loader. However in not sure what configuration that is, everything I'm used to (which isnt much yet!) is all hydraulics, ie hydraulic motors in the hubs

cant say i have herd of any, and ive been in the heavy vehicle game for over 10yrs

heaps of hyd motor powered stuff, but nothing elec ( hey i could be wrong new shit pops up daliy )

by **Mr Revhead** » Fri Oct 02, 2009 2:05 pm

Yeah just been looking into the Volvo loader system, it's not like what they do in cars.
It's used to help with fuel efficency by allowing the engine to start instantly, so when idling for a period the engine switches off. then if you make a control input that controls that requires the engine its spun up faster by the electric motor. the electric motor also helps with low rev operation. the wheels etc are still powered by hydraulics.
It's all done through the starter. starter motor is now also a generator, and motor! rather than just a simple motor used for starting

by **sergei** » Fri Oct 02, 2009 8:01 pm

you guys are not thinking big, most real big dump trucks have electric hubs, unless they are ancient.
Russian ones had them since mid '70 (BELAZ 549).

After 10s googling:

http://www.belaz-mining.com/content/view/101/97/

http://www.komatsu.com.au/equipment/new ... fault.aspx

http://www.hitachi-c-m.com/au/products/ ... ion_1.html

Some 10s raid on wikipedia:

http://en.wikipedia.org/wiki/LeTourneau_L-2350

http://en.wikipedia.org/wiki/Liebherr_T_282B

http://en.wikipedia.org/wiki/Terex_Titan

http://en.wikipedia.org/wiki/Komatsu_930E

http://en.wikipedia.org/wiki/Komatsu_830E

by **toymato** » Sat Oct 03, 2009 7:56 am

Now this is a better combination:
http://www.stuff.co.nz/life-style/motor ... rari-badge

by **sergei** » Sat Oct 03, 2009 8:19 am

toymato wrote:Now this is a better combination:
http://www.stuff.co.nz/life-style/motor ... rari-badge

WTF you are on about? It is a $&#$% FIAT [lack of] reliability multiplied by Ferrari [lack of] reliability.

by **mr30%jr** » Sat Oct 03, 2009 9:21 am

lol @ adamal

:lol:

by **toymato** » Sat Oct 03, 2009 11:30 am

sergei wrote:
toymato wrote:Now this is a better combination:
http://www.stuff.co.nz/life-style/motor ... rari-badge

WTF you are on about? It is a $&#$% FIAT [lack of] reliability multiplied by Ferrari [lack of] reliability.

Don't care. Had 2 fiats and they're great cars to drive.

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