MD-AWD-500. Mechanically linked AWD Performance Dyno
The key to designing an AWD dynamometer properly is to understand the methods currently being used by manufacturers in the field of AWD drivetrain technology. A dynamometer that can accommodate various types of AWD vehicle transmissions and wheelbases without excessive complication and, more importantly, without risking damage to a client’s AWD system is paramount.
Full time AWD vehicles are designed to provide maximum performance regardless of road conditions. In cases where traction is less than ideal, a vehicle may be designed to improve stability and traction at the expense of power. This means adding torque to a spinning wheel or retarding of timing. In order to properly test an AWD vehicle for peak performance, an AWD chassis dynamometer must be able to simulate ideal road-load conditions to the vehicle. This approach allows the vehicle to be evaluated under “optimum” operational conditions; whereby torque is distributed to the vehicle’s tires in the same manner that would normally occur when a vehicle has equal traction at all four drive wheels, and is therefore operating at peak efficiency.
To achieve this, Mustang’s AWD-500 Series incorporates an internal drive system that synchronizes the front and back rollers to simulate a flat, dry road condition. Synchronization, or linkage, insures that the front and rear rollers are always spinning at precisely the same road speed. This process eliminates the possibility of activating a vehicle’s traction control system and also insures that a vehicle’s torque management system is operating under the assumption that the vehicle is not skidding, turning or slipping.
Mustang’s AWD-500 can be operated in AWD Mode while testing two-wheel drive vehicles. This process allows the non-driven axle to be spun by the dynamometer rollers at the same speed as the driven axle, eliminating the speed differential that occurs on two-wheel drive dynamometers – problem solved.
||3,000 hp peak measurement capacity AWD mode
900-hp peak absorption (SE model)
1,800-hp peak absorption (DE model)
||Air-cooled eddy current power absorber (model MDK-250)
|Torque Measurement Device:
||Strain Gauge Type Dynamic Load Cell. Provides closed loop control signal for dynamic vehicle loading.
2,152 lbs. (AWD MODE)
1,190 lbs. (2WD MODE)
190 mph (2WD Mode)
175 mph (AWD Mode)
||Closed Loop Digital Controller with Windows based PowerDyne Software. Includes Patented Virtual Road Simulation Technology (RST)
Precision machined and dynamically balanced, knurled rolls
Belted for bi-directional capability
12.625” (370.675 mm) diameter balanced rolls
31” (787.40 mm) face length
18” (457.00 mm) inner track width
80” (2032.00 mm) outer track width (98” optional -2489.20 mm)
88-118” standard wheelbase (longer wheelbase available)
||Heavy-duty, industrial-fiber belt drive with mechanical disconnect
||Allows vehicle deceleration without use of vehicle brakes. Eddy Current PAU used to decelerate rollers.
||115 PSI, dry, regulated, oil free
115 VAC, single phase, 60 Hz, 15 Amps (computer)
230 VAC, single phase, 60 Hz, 40 Amps (dynamometer)
230 VAC, three phase, 60 Hz, 40 Amps (DE model)
||6,000 lbs. maximum 1 axle
||9,000 lbs. (dynamometer weight only)
Detailed User's Manual for Mustang Dynamometer's PowerDyne PC Software.