Discussion
BigBen said:
amstrange1 said:
DSLiverpool said:
it has heated seats that uses no power as it comes from the vehicle battery not the traction battery
Where do you think the 12V battery gets its energy from?FiF said:
BigBen said:
amstrange1 said:
DSLiverpool said:
it has heated seats that uses no power as it comes from the vehicle battery not the traction battery
Where do you think the 12V battery gets its energy from?BigBen said:
FiF said:
BigBen said:
amstrange1 said:
DSLiverpool said:
it has heated seats that uses no power as it comes from the vehicle battery not the traction battery
Where do you think the 12V battery gets its energy from?DSLiverpool said:
Anything from the "car" battery (seats and fan etc) does not reduce range - the car battery does not suck power from the traction battery.
Eh? Where does the battery get its power from then, fairy dust? On the Zoe I can tell you it does for sure get charged from the main traction battery.DSLiverpool said:
When you were a kid and you had a dynamo that was rotated by the wheel - energy into electricity the Zoe has a momentum based charger - a dynamo that is fed from the vehicle moving hence it doesn't worsen the range using the "car" battery
Oh dear.It was Einstein who said "Energy cannot be created or destroyed, it can only be changed from one form to another". So even if the Zoe were charged from a dynamo system, the energy to run that dynamo must come from somewhere. i.e. the fwd movement of the car, so therefore less of the available energy would be going into fwd motion or regenerative braking charging the traction battery, it's basic physics from primary school.
Edited by IN51GHT on Wednesday 1st July 07:25
IN51GHT said:
DSLiverpool said:
When you were a kid and you had a dynamo that was rotated by the wheel - energy into electricity the Zoe has a momentum based charger - a dynamo that is fed from the vehicle moving hence it doesn't worsen the range using the "car" battery
Oh dear.It was Einstein who said "Energy cannot be created or destroyed, it can only be changed from one form to another". So even if the Zoe were charged from a dynamo system, the energy to run that dynamo must come from somewhere. i.e. the fwd movement of the car, so therefore less of the available energy would be going into fwd motion or regenerative braking charging the traction battery, it's basic physics from primary school.
Edited by IN51GHT on Wednesday 1st July 07:25
Off topic but for ages I puzzled about something I'd read about U-boat ops in WW2. When trying to save fuel they'd run on one engine. But so they weren't dragging the other prop through the water, they'd connect the electric motor on the first drive shaft as a generator directly to to the electric motor on the second drive shaft and drive that with the second engine clutch out. It confused me for s while that this would increase fuel consumption on the first engine and the efficiency of converting that energy to electric energy and back to mechanical energy was not as efficient as the transmission of a direct drive engine to propellor shaft. Of course when you compare out the efficiency of the second engine if it were running with the electric transfer then it adds up, but you need to remove the drag of another prop etc to make the figures add up.
FiF said:
IN51GHT said:
DSLiverpool said:
When you were a kid and you had a dynamo that was rotated by the wheel - energy into electricity the Zoe has a momentum based charger - a dynamo that is fed from the vehicle moving hence it doesn't worsen the range using the "car" battery
Oh dear.It was Einstein who said "Energy cannot be created or destroyed, it can only be changed from one form to another". So even if the Zoe were charged from a dynamo system, the energy to run that dynamo must come from somewhere. i.e. the fwd movement of the car, so therefore less of the available energy would be going into fwd motion or regenerative braking charging the traction battery, it's basic physics from primary school.
Edited by IN51GHT on Wednesday 1st July 07:25
Off topic but for ages I puzzled about something I'd read about U-boat ops in WW2. When trying to save fuel they'd run on one engine. But so they weren't dragging the other prop through the water, they'd connect the electric motor on the first drive shaft as a generator directly to to the electric motor on the second drive shaft and drive that with the second engine clutch out. It confused me for s while that this would increase fuel consumption on the first engine and the efficiency of converting that energy to electric energy and back to mechanical energy was not as efficient as the transmission of a direct drive engine to propellor shaft. Of course when you compare out the efficiency of the second engine if it were running with the electric transfer then it adds up, but you need to remove the drag of another prop etc to make the figures add up.
IN51GHT said:
FiF said:
IN51GHT said:
DSLiverpool said:
When you were a kid and you had a dynamo that was rotated by the wheel - energy into electricity the Zoe has a momentum based charger - a dynamo that is fed from the vehicle moving hence it doesn't worsen the range using the "car" battery
Oh dear.It was Einstein who said "Energy cannot be created or destroyed, it can only be changed from one form to another". So even if the Zoe were charged from a dynamo system, the energy to run that dynamo must come from somewhere. i.e. the fwd movement of the car, so therefore less of the available energy would be going into fwd motion or regenerative braking charging the traction battery, it's basic physics from primary school.
Edited by IN51GHT on Wednesday 1st July 07:25
Off topic but for ages I puzzled about something I'd read about U-boat ops in WW2. When trying to save fuel they'd run on one engine. But so they weren't dragging the other prop through the water, they'd connect the electric motor on the first drive shaft as a generator directly to to the electric motor on the second drive shaft and drive that with the second engine clutch out. It confused me for s while that this would increase fuel consumption on the first engine and the efficiency of converting that energy to electric energy and back to mechanical energy was not as efficient as the transmission of a direct drive engine to propellor shaft. Of course when you compare out the efficiency of the second engine if it were running with the electric transfer then it adds up, but you need to remove the drag of another prop etc to make the figures add up.
DSLiverpool said:
When you were a kid and you had a dynamo that was rotated by the wheel - energy into electricity the Zoe has a momentum based charger - a dynamo that is fed from the vehicle moving hence it doesn't worsen the range using the "car" battery
Ever notice how it was slightly harder to pedal when the dynamo was engaged, or how on small cars the engine idle speed drops if you put the headlights on?DSLiverpool said:
When you were a kid and you had a dynamo that was rotated by the wheel - energy into electricity the Zoe has a momentum based charger - a dynamo that is fed from the vehicle moving hence it doesn't worsen the range using the "car" battery
You get nothing for nothing. If the Zoe has an alternator, the more current drain on it (ie using heaters, lights etc..) will make it harder to turn and require more power from the primary motor to overcome this. Main traction battery provides this extra current. So yes it would still reduce the range, not by much though. Its peanuts compared to the energy needed to move a 1.5ton car.ooo000ooo said:
Guys came out yesterday to install my charging point, they discovered that my house does not have any earth bonding
The blokes who fitted my free charging point sorted out the earth bonding at my house, and fixed a faulty light in the garage. Bunged them a few quid for their efforts and everyone was very happy.amstrange1 said:
PKLD said:
I thought my solar panel on the spoiler acted as a trickle charger for the 12v one (and helps to power the fans on a hot day to circulate air)?
The panel is about 5W, so a very slow trickle of 400mA or so.I noted the AC was using 750-800W too, so clearly will have an impact on range - but potentially not a massive one dependant on your drivecycle.
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