• Up to 56% Improvement in Power Output in Customer Testing at 110° C
• Up to 46% improvement at 24° C
• Up to 12% increase in overall efficiency

Standard Automotive J-56 Test Protocol at 24° C (75° F)
Symetron enhanced alternator produces 43% higher output from same-sized unit at 75° F.

Raser engineers redesigned a 160 amp heavy duty truck alternator to improve efficiency and power output. The improved design was tested against the standard alternator at the customer's facility following the industry standard J-56 test protocol to evaluate alternator performance. Raser improved the output of the standard alternator from 160 amps to 230 amps at 24° C, demonstrating up to 43% improvement in power output over a state-of-the-art, heavy-duty alternator. The Symetron^TM alternator showed a consistent improvement in power output over the entire operating range. This dramatic improvement in performance was achieved without increasing alternator size.

Testing Under Elevated Heat Conditions at 110° C (240° F)
Raser demonstrated 56% improvement when tested at an elevated temperature of 110° C (240° F); suggesting higher reliability under the higher-heat conditions of an engine compartment.

In addition to higher output under normal operating temperatures, the Raser alternator demonstrated up to 56% improvement in power output when tested in elevated heat conditions. This improvement may be valuable in the higher temperature environment of the engine compartment.
 

Standard Alternator	Symetron Enhanced Alternator
160 AMP	230 AMP
(same size) The increased output can be achieved at less than 10% increase in cost. A potential 4 to 1 leverage in profit for alternator manufacturers and their customers.

The Symetron^TM “brushless” alternator design also satisfies a growing trend toward more reliable brushless alternators, moving away from less reliable brushed alternators.

The improved performance of the Symetron^TM enhanced alternator was due in part, to a proprietary Intelligent Voltage Regulator (IVR) developed by Raser. This proprietary IVR design also shows the potential to improve performance on a wide variety of other types of alternators.

The electrical demand in modern trucks, buses and automobiles is dramatically increasing as mechatronic electric motor driven devices replace less efficient mechanical and hydraulic subsystems such as radiator cooling fans, water pumps, and air conditioning compressors to reduce parasitic loads and increase fuel economy; mandated safety lighting levels are increased for on-road trucks; and the demand for evermore electric motor driven safety and luxury accessories continues.

Truck, bus, specialty vehicle and automobile manufacturers require on-board vehicle alternators/generators with increased power generating capability at both operating and idle speed to supply the needed power. To increase fuel economy, more efficient alternators are needed.

The increase in power generated by the Symetron^TM alternator provides an opportunity for a alternator manufactures to provide significant increase in value to their customers while increasing profit margins. Traditionally, alternators have been “priced by the amp” for the power they produce. By increasing power output without increasing size, manufacturers can provide additional value from improved performance and reduced alternator size for heavy-duty trucks and commercial vehicles. The global OEM market for alternators of all types is estimated to be approaching $18 billion annually. In fact, the amount of electrical power produced by on-board vehicle alternators/generators exceeds the total electrical output of all the worlds power plants.
 

Benefits

• Lower Cost

• Higher Output

• Greater efficiency for improved fuel economy

• Higher Reliability

• Increased Low RPM output

More Information on Alternator Technology