24-volt battery vehicles? 3

[felixc]

Hi,
are there countries where the working voltage in vehicles is at 24 volts? Or are there classes of motor vehicles, trucks, or maybe agricultural vehicles, that use 24 volts? One of my customers suddenly has concerns that the systems that I am working on could be used on 24-volt vehicles. My design actually runs from 9 to 18 volts, with transient suppressors for spikes at higher voltages.
Felix

 

[rmw]

I know of at least one large fleet that still uses air start (or did as of my last contact with them. But they also put aluminum wheels on every position except the steers. They said that aluminum saved weight everywhere else, but wasn't strong enough for the steer axle. Funny, most tractors come stock with all steel wheels except the steer axle which is aluminum wheels. Go figure.

Our forklifts, for what it is worth, are 36 and 48 V. respectively.

rmw

 

[GregLocock]

I'll put even money on less than 50% of the US new vehicle fleet being on 12 V, not 42V, by 2012. takers?







Cheers

Greg Locock

Please see FAQ731-376 for tips on how to make the best use of Eng-Tips.

 

[rmw]

I wouldn't touch that bet.

rmw

 

[turbocohen]

Greg, I would bet on 1/3 of new models using 42v by '12

 

[iamyo]

Félix,

1.5Amps? I guess you are using a DC/DC converter, or?. Which EMC directive do you have to fulfil? A DC/DC converter which such a high current probably gives you EMC troubles. Do you have any shielding?

Antonio