Diesel Engine Fuel Economy Improvement Challenges and ...
Diesel Engine Fuel Economy Improvement Challenges and ...
Diesel Engine Fuel Economy Improvement Challenges and ...
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Truck Hybridisation – The Benefits<br />
% FE Impro vement over baseline<br />
70%<br />
60%<br />
50%<br />
40%<br />
30%<br />
20%<br />
10%<br />
0%<br />
Certified FE <strong>Improvement</strong>s<br />
Current Systems<br />
35%<br />
65%<br />
61%<br />
Bus<br />
(PHEV)<br />
[No Idle Stop]<br />
24%<br />
24%<br />
32%<br />
MD<br />
Box Truck<br />
[No Idle Stop]<br />
8%<br />
27%<br />
MD<br />
Utility Truck<br />
[No Idle Stop]<br />
UDDS<br />
(MPG)<br />
Orange<br />
County<br />
(MPG)<br />
Manhattan<br />
(MPG)<br />
• <strong>Fuel</strong> <strong>Economy</strong> benefit highly<br />
dependent upon drive cycle<br />
• Hybrid Trucks are most efficient<br />
in city driving<br />
• Greatest benefit from working<br />
trucks is idle engine off operation<br />
Gallo ons fuel<br />
4500<br />
4000<br />
3500<br />
3000<br />
2500<br />
2000<br />
1500<br />
1000<br />
500<br />
0<br />
Work Truck <strong>Fuel</strong><br />
Consumption<br />
Stationary<br />
Operation<br />
On Highway<br />
Bucket Truck Hybrid<br />
Bucket Truck<br />
10<br />
80% reduction Stationary Operation<br />
20% reduction On Highway
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