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)
150 mph (AWD Mode)
||Closed Loop Digital Controller with WindowsXP based PowerDyne Software. Includes Patented Virtual Road Simulation Technology (RST)
||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)
||Heavy-duty, industrial-fiber belt drive with mechanical disconnect
||Allows vehicle deceleration without use of vehicle brakes. Eddy Current PAU used to decelerate rollers.
||80 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)