Jump to content
SAU Community

Recommended Posts

i wonder how far off we are from a mass produced toyota nissan holden version of this, or if that will ever happen

i really dont know why we cant run our cars on methanol apart from the government finding it hard to stop ppls making vodka baths in the basement to run the kids to school in the daewoo oh and the not tgacing it thing

BMW Hydrogen 7 launched

Link to comment
https://www.sau.com.au/forums/topic/143304-bmw/
Share on other sites

i wonder how far off we are from a mass produced toyota nissan holden version of this, or if that will ever happen

i really dont know why we cant run our cars on methanol apart from the government finding it hard to stop ppls making vodka baths in the basement to run the kids to school in the daewoo oh and the not tgacing it thing

BMW Hydrogen 7 launched

The technology is fantasic, the production of hydrogen though is very expensive until that problem is solved they are not worth it.

If you havent seen the movie who killed the electric car go see it or i could lend it to ya. Yes it is biased towards electrics but has some info on the hydrogen cars and stuff coming into play in the US.

Also have a look at http://www.teslamotors.com/

They have the backing to do it so it shall be interesting over the next year or two.

Link to comment
https://www.sau.com.au/forums/topic/143304-bmw/#findComment-2672547
Share on other sites

Dosen't it still take more energy and produce more emissions making hydrogen just using petrol?

"hydrogen - the most common element in the universe" yeah, most common but 99.99999999999% of it is contained in stars and gas clouds in space - not that easy to get to. Hydrogen in its elemental form on earth is in very very small proportions, 99.9999% makes up part of the water in our oceans.

Edited by JCMarshall_Law
Link to comment
https://www.sau.com.au/forums/topic/143304-bmw/#findComment-2672728
Share on other sites

that telsa look good ... but thats the problem with electric no engine sound @ least with hydrogen engine would still make a noise but dont know if you can modify the exhaust

Id make my own noises...the other 1/2 already says i do :D

Id like to try one of them tesla cars out...

Link to comment
https://www.sau.com.au/forums/topic/143304-bmw/#findComment-2673507
Share on other sites

This is why oil companies and the US government never backed the electric car, but have embraced the hydrogen fuel cell:

They can provide an "environmentally friendly alternative" but still warrant charging and taxing an arm and a leg for fuel.

The fundamental difference between hydrogen powered & electric cars comes into play when you want to refuel. In an electric car the process takes hours, in a hydrogen fuelled car it can be done in a matter of minutes. Which makes it possible to use a hydgrogen powered car in the same manner as a petrol powered car. Something that (conspiracy theorists aside) proponents of electric cars can never claim.

Link to comment
https://www.sau.com.au/forums/topic/143304-bmw/#findComment-2673549
Share on other sites

The fundamental difference between hydrogen powered & electric cars comes into play when you want to refuel. In an electric car the process takes hours, in a hydrogen fuelled car it can be done in a matter of minutes. Which makes it possible to use a hydgrogen powered car in the same manner as a petrol powered car. Something that (conspiracy theorists aside) proponents of electric cars can never claim.

Yes they cant claim this, but the distances and charging times would suit a large percentage of the population eg the people that drive to work and back each day. Telsa is 3.5 hours for fullcharge which is about 400kms.

Link to comment
https://www.sau.com.au/forums/topic/143304-bmw/#findComment-2675041
Share on other sites

Yes the Tesla car looks like it could be a lot of fun, however there is one fundamental problem I have with it that people always seem to forget.....

Yeah for sure the car itself doesn't put out any emissions, but what about it's power source?? Unless you are using a solar or wind generator you are going to be burning fossil fuels every time you have to charge the sucker up. The idea itself is a good one but without green power production it's effectively usless IMO.

Plus who has another car that they use if they all of a sudden have to travel more than 400km the next day that they can otherwise afford to have lying around doing nothing?

This is where the Hydrogen system becomes interesting, as when they can sought out the tank storage system (which no doubt with more reseach they will) & reduce the cost of producing the hydrogen (which with increasing production levels & more efficient systems will happen) it then becomes highly viable.

BMW's spent truckloads of money researching this system almost completely all by themselves & I can't see them doing it all for nothing.

Edited by JazzaR33
Link to comment
https://www.sau.com.au/forums/topic/143304-bmw/#findComment-2683455
Share on other sites

Yes the Tesla car looks like it could be a lot of fun, however there is one fundamental problem I have with it that people always seem to forget.....

Yeah for sure the car itself doesn't put out any emissions, but what about it's power source?? Unless you are using a solar or wind generator you are going to be burning fossil fuels every time you have to charge the sucker up. The idea itself is a good one but without green power production it's effectively usless IMO.

Plus who has another car that they use if they all of a sudden have to travel more than 400km the next day that they can otherwise afford to have lying around doing nothing?

Yes you have to produce the electricity, but its cheaper/more efficent(lesser amounts of nasties) to produce the power needed in a power station then it is to burn petrol in a car.

Also as i said above currently and until a major breakthough happens its more expensive(eg the electricity needed to make hydroden makes more byproducts) then either of the above.

To the more then 400kms car lying around. Thats what hire cars are for :blink: among other things. :wave:

Link to comment
https://www.sau.com.au/forums/topic/143304-bmw/#findComment-2687236
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • @666DAN sorry to bring you and old thread.     I've got my de+t done and it's all running great other than 1 small issue.    Car has remained auto with the na auto and tcm, I've used a stagea ecu with. NIstune board and everything is great other than my gear selection on the dash. It illuminates park, reverse, neutral, 3rd and 2nd when selected . But nothing when in  drive or what gear your in when you pop it into tiptronic. I'm sure there is maybe 1 wire in the ecu plug I need to move to rectify this. Do ya have any ideas?     Cheers man
    • Well I recently changed my rear axles and was thinking if I bumped anything, I have been driving the car for a while now though... But it has been raining today so everything is wet under the wheel arches. Brakes feel fine and can't hear any of the metal screamers, I had a squeak coming from one of the handbrake drums but that seems to have gone away a while ago. I was going down a hill when it lit up and I did feel the abs bite for a second and question why it did it?
    • Correct. Um. I dunno. I haven't cared enough about the way that the NA cars work to know for sure. But..... The 33/34 turbo manual cars have an electronic speed sensor in the gearbox that outputs a +/- (ie, sawtooth AC) voltage signal. That is connected to the speedo. The speedo then outputs a 0-5v square wave (ie, PWM) signal that the ECU (and any other CU on the bus) sees. The speed sensor is NOT directly connected to the ECU. So here's the problem. Your new ECU expects to see the PWM signal, but must somehow be getting a direct signal from the diff speed sensor. Which would suggest that the wiring of the NA car is not the same as the turbo cars. I think you will need to spend some time with (hopefully the wiring diagram for the car) and a multimeter to see what is connected to what. Then, presuming I am correct**, you would then want to separate the ECU speed signal input from the rest of the car's wiring, and probably either buy a speed signal converter, or build one using an arduino (or similar). That would take in the speed sensor signal and output a scaled (and suitably rearranged) signal for the ECU. ** We shouldn't presume that I am correct here, because there might be something else crazy going on. I don't think you could convert the speedo to be fed from the gearbox sensor, because the pulse rate from that sensor is probably different to the diff sensor and then the speedo would read wrongly. And this also wouldn't fix the ECU's problem either, because the ECU doesn't want to see the gearbox signal direct either (assuming that they are all on the same wiring, for some odd NA related reason, see above caveat!) Does this help? Probably not. Can you make it work? Almost certainly. With the above work. You should buy a handheld oscilloscope from Aliexpress so that you can view these signals directly. Connect up the probes and drive the car. Show photos of the screen when drving at known speeds and connected to different places, and we'll see what we can learn about it.
    • Assuming your brake pads are not worn right down, I'd add a little brake fluid. Is there any sign of a brake fluid leak?
    • Hello all,  I need of some help. On my drive home my handbrake light lit up and started flashing. When I got home I checked my handbrake sensor under the centre console and nothing seemed out of the ordinary. I have scanned my car via the consult port, no codes shown. Checked my brake fluid as well which is half full. Tried unplugging the brake master but it didn't change anything. Thoughts on what it could be? The master float doesn't seem to be stuck. My car is an 1998 ER34 sedan GT. No hicas but has ABS Photos below 👇🏾 
×
×
  • Create New...