Throttle response

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Throttle response or vehicle responsiveness is the responsiveness of the vehicle to throttle (accelerator pedal) modulation. When accelerator pedal pressed suddenly, how fast power output of engine increases implies the throttle response of that vehicle. Throttle is not used in diesel engine, but the term throttle often refers to accelerator control. Throttle response is often confused with better power, but throttle response is rather related to time taken for change in power level.[1]

Generally petrol engines exhibit better throttle response over diesel engines. Also naturally aspirated petrol engines have better responsiveness over supercharged and turbocharged engines. Here comparison should be experienced in engines which have same peak power output. Several tuning factors have an effect upon the responsiveness of the throttleed engine.[2][3]

Most new cars are equipped with a drive-by-wire system. Throttle response is often affected badly by this and drivers feel a noticeable delay when quickly changing the position of the gas pedal.

[edit] Application of throttle response

Throttle response comes into play in the following:

Overtaking

After following a vehicle or going side by side, there is need for sudden need of power to execute a successful overtaking. So throttle response plays crucial role in racing.

Coming out of a corner

while entering a corner brake is applied or at least power is reduced. As soon as a corner is over car should be accelerated quickly. Better throttle response gives sudden surge in power.

Driving pleasure

Throttle response plays major role driving pleasure, as this gives the driver more control on vehicle's acceleration.

[edit] See also

[edit] Notes and References

  1. ^ "DIY: Free and Easy 2005+ Mustang Throttle Response Modification", autobglo.com, Auto B Glo, 2007-11-14. Retrieved on 2008-01-19. 
  2. ^ Bohacz, Ray. "Eliminate Engine Detonation Without Losing Power and Throttle Response", highperformancepontiac.com. Retrieved on 2008-01-19. 
  3. ^ Kowatari, T.; Aono, T.. "Throttle-control algorithm for improving engine response based on air-intake model and throttle-response model", IEEE Xplore, IEEE. Retrieved on 2008-01-19. 
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