Do you burn more gas idling or starting?
This work seeks to answer the question: Considering both fuel use and emissions, how long can you idle in a queue before impacts from idling are greater than they are for restarting? Fuel use and carbon dioxide emissions are always greater for idling over 10 seconds; the crossover times are found to vary by pollutant.
How many seconds of idle time is equivalent to starting your engine?
They have been offset to intersect the fuel consumption data curve at 1, 2, and 3 seconds respectively. It is apparent that the “idle time equivalent of starting” is related to how quickly you start extracting useful work from the engine after starting it.
What to do when task is in idle state?
You can alter the Idle state for the CPU by using the built-in utility PowerCfg but it has a steep learning curve so it might not be worth the effort. If you do not want the task to take any action when Windows reaches its Idle state then your easiest solution might be to insert a waiting period at the start of the script.
When do you press the gas pedal after idling?
But regardless of whether you were idling or stopped, you will likely press the gas pedal within a few seconds after t = 0, and then your fuel consumption will be the same in either case. The three lines shown are all the same slope as the linear trend line in the above plot showing normal idle speed fuel consumption.
What happens to the torque of an engine at idle?
The torque is high when the engine is accelerating quickly up to idle speed, but drops to a roughly constant value when the RPMs are not changing quickly. This constant pulse width at idle can be thought of as representing the torque required to overcome engine friction.
They have been offset to intersect the fuel consumption data curve at 1, 2, and 3 seconds respectively. It is apparent that the “idle time equivalent of starting” is related to how quickly you start extracting useful work from the engine after starting it.
How to calculate the starting time in seconds?
On the following time calculation steps, we show how to subtract time in seconds. Let’s say starting time is 2:15:30 Subtract 0:50:15 1 hour = 60 × 60 seconds 1 minute = 60 seconds Calculating starting time in seconds 2:15:30 = (2×60×60 sec) + (15×60 sec) + 30 sec = (7200 sec) + (900 sec) + 30 sec = 8130 seconds To subtract 0:50:15
But regardless of whether you were idling or stopped, you will likely press the gas pedal within a few seconds after t = 0, and then your fuel consumption will be the same in either case. The three lines shown are all the same slope as the linear trend line in the above plot showing normal idle speed fuel consumption.
Why is idle speed higher on a cold engine?
Results may vary from one vehicle to another. This experiment was performed on a warm engine. The results will be different on a cold engine since the engine management system injects additional fuel during a cold start. However, the standard idle speed is also higher on a cold engine, so the effects may cancel.