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.
AWD-500-AC/EC-100/250
Max Horsepower: 3,000 hp peak measurement capacity AWD mode
Max Absorption: 900-hp peak absorption (SE model) 1,800-hp peak absorption (DE model)
Loading Device: 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.
Inertia: 2,152 lbs. (AWD MODE) 1,190 lbs. (2WD MODE)
Max Speed: 190 mph (2WD Mode) 150 mph (AWD Mode)
Controls: Closed Loop Digital Controller with WindowsXP based PowerDyne Software. Includes Patented Virtual Road Simulation Technology (RST)
Rolls/Wheelbase: Precision machined and dynamically balanced, knurled rolls Belted for bi-directional capability 12.625” diameter balanced rolls 31” face length 18” inner track width 80” outer track width (98” optional) 88-118” standard wheelbase (longer wheelbase available)
Transmission: Heavy-duty, industrial-fiber belt drive with mechanical disconnect
Roll Decelerator: Allows vehicle deceleration without use of vehicle brakes. Eddy Current PAU used to decelerate rollers.
Air Requirements: 80 PSI, dry, regulated, oil free
Power Requirements: 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)
Axle Weight: 6,000 lbs. maximum 1 axle
Shipping Weight: 9,000 lbs. (dynamometer weight only)
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