The KERS button and its associated power boost could see its return to Formula One in 2011 after teams had positive talks on the system during a FOTA meeting on wednesday. Several KERS manufacturers are now interested to provide KERS to other teams at a reasonable price.
What I'm saying, if you read my previous post carefully, is with today's 60 kW MGU and the efficiencies involved, you probably need a full lap to store the 400 kJ. With some margin of course, but a three second braking/charging with 60 kW, followed by discharging after every corner would get you nowhere. Probably kill the batteries as well.machin wrote:Your numbers do seem to make sense in theory...... but in practice whenever the KERS information is displayed on the TV and the car in question goes across the line the KERS "battery" symbol goes from empty to full.... which implies that the car has actually physically fully re-charged the system, but due to the rules can't start discharging it until after it has crossed the line (when the 400kJ per lap is re-set)... so the technology is definitely being restricted by the "400kJ per lap" rule, rather than say simply a "400kJ maximum storage at any given time" rule....
True... but looking at all the available evidence to formulate that theory is also another!!!If you ask me, beginning with a plausible theory is what makes an engineer an engineer.
Maybe this is true (I can't find an expalanation anywhere)... however, again, looking at the footage... the cars generally come out of the last corner with the "battery bar" showing "empty"... they cross the line and the bar jumps up and instantly they start using the boost... that means they had the system at least partially charged before the start/finish line, but couldn't use it until after they crossed the line due to the "400kJ per lap" rule....regardless of the actual instantaneous state of charge in the batteries.
Be my guest, machine, knock yourself out!machin wrote:True... but looking at all the available evidence to formulate that theory is also another!!!If you ask me, beginning with a plausible theory is what makes an engineer an engineer.
That TV graphic is probably a simple counter showing how much KERS has been used on the lap. I suspect a car could cross the line with a completely empty battery and the bar would still jump to 100%.machin wrote: looking at the footage... the cars generally come out of the last corner with the "battery bar" showing "empty"... they cross the line and the bar jumps up and instantly they start using the boost... that means they had the system at least partially charged before the start/finish line, but couldn't use it until after they crossed the line due to the "400kJ per lap" rule....
Giblet wrote:The system ideally should only be able to hold the charge from the biggest braking point in the season, and that should be the max. So the driver starts with no charge, brakes for a corner, charging, and then releases that charge exiting the corner.
Is that not the best solution, instead of arbitrary made up numbers? That would be the most efficient/small system yes?
But this doesn't explain my observation:-That TV graphic is probably a simple counter showing how much KERS has been used on the lap. I suspect a car could cross the line with a completely empty battery and the bar would still jump to 100%.
Anyway... I think we're all in agreement that the "400kJ per lap" rule is rubbish and simply a maximum storage capacity would be a better use of the technology???looking at the footage... the cars generally come out of the last corner with the "battery bar" showing "empty"... they cross the [start/finsih] line and the bar jumps up and instantly they start using the boost... that means they had the system at least partially charged before the start/finish line, but couldn't use it until after they crossed the line due to the "400kJ per lap" rule....
[/quote]machin wrote:they cross the [start/finsih] line and the bar jumps up and instantly they start using the boost... that means they had the system at least partially charged before the start/finish line
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True... but its a bit like if they wrote the aero rules something like; "you can have wings on the car, but they must only produce downforce for 10 seconds per lap".... i.e a bit too arbitrary for my liking...xpensive wrote:The way the rules are set up, you can charge/store as much energy as you like, but you can't discharge more than 400 kJ, at a maximum rate of 60 kW, per lap.
There has been a statement from FOTA since FI and Williams rejoined saying that KERS won't be used.raceman wrote:Williams "still" working on their flywheel-based KERS, but no report on whether they will definitely use it next season..... all other FOTA teams have just agreed not to use it; but what about new entrants??
any updates pls
