A Strategic Investigation for Fuel Economy Improvement of Medium-Duty Tactical Truck: Preliminary Simulation and Experimental Results

Table 1

LMTV M1078 A1 vehicle description [6].

Wheel base	3900 mm (153.5^)
Vehicle curb weight (no kits, crew, fuel)	7809 kg (17216 lb)
Payload	2268 kg (5000 lb) plus kits
Towed load	5443 kg (12000 lb)
Maximum speed (governed, at gross weight)	94 km/h (58 mph)
Range: 58 gal (219 L) nominal	645+ km (400 + mi)
Maximum grade/side slope	60%/30%
Engine	Caterpillar C7 ATAAC (air-to-air after cooler) HD diesel, in-line 6-cylinder, 4-stroke-cycle.
Displacement	7.2 L (441 cu in)
Aspiration	Turbocharged, air-to-air after cooler, EPA 07 certified.
Rating	205 kW (275 hp) @ 2600 rpm
Torque	1,166 Nm (860 lb-ft) @ 1440 rpm
Fuel types	Diesel, DF-2, JP-4, JP-8, VV-F-800.
Transmission	Allison 3700SP, fully automatic/select 7 speed, electronically controlled, full-time all-wheel drive.
Front wheels	30% torque
Rear wheels	70% torque
Overall axle gear ratio	7.8 : 1