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Actuator for an Electronically Controlled CVT

Summary

The CVT market is dominated by transmissions where the shift profile is adjusted by mechanical means such as flyweights, springs, and hydraulics. Researchers at Purdue University have developed a novel system that fully integrates the adjustment actuator within the CVT. This technology allows the shift profile to be adjusted electronically using software changes, which has several advantages over current electronic continuously variable transmission (ECVT) technology, including reductions in the cost of the CVT motor assembly, in the number of moving parts, in the proliferation of overall hardware, and in the time to market of the product.

Technology Benefits

Reduced load on the electrical system when changing gear ratiosReduction in size compared to mechanically actuated CVTs Increased reliability through a reduction in the number of moving parts Reduced time to market when engineering specific applications

Technology Application

MotorsFuel IndustryManufacturing

Detailed Technology Description

John StarkeyPurdue Mechanical Engineering

Countries

United States

Application No.

7,980,973

Country/Region

USA

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