Paano Kalkulahin si Gear Ratio Auto
Ano ang Gear Ratio Auto?
Calculates transmission gear ratios affecting acceleration, engine RPM, and fuel economy at cruising speed.
Step-by-Step na Gabay
- 1Calculate RPM at given speed: (speed × 5280 × 60) ÷ (wheel circumference × 12 × 3.14159 × ratio)
- 2Final drive ratio multiplied by transmission ratio
- 3Higher ratio = more torque multiplication, lower speed capability
- 4Overdrive ratios <1.0 for efficiency
Mga Nalutas na Halimbawa
Input
Final drive 3.55:1
Resulta
Rpm multiplier
Mga Karaniwang Mali na Dapat Iwasan
- ✕Assuming higher gear count always better (depends on driving)
- ✕Not considering RPM at highway speed (affects efficiency/noise)
Mga madalas itanong
Why do some cars have more gears?
More gears allow optimization of acceleration and cruising; modern 8-10 speed improves efficiency 5-10%.
What's the difference between 3.55 and 4.10 rear diff?
4.10 accelerates faster but cruises at higher RPM and lower MPG; 3.55 is efficiency oriented.
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