UQM Technologies in Conjunction With BorgWarner Team Up To Manufacture Electric Powertrains

The CODA Sedan With UQM Electric Drivetrain

UQM Technologies is collaborating with BorgWarner on electric powertrain products for all-electric and hybrid-electric passenger automobiles.

Initially, the companies are working together to integrate UQM Technologies’ PowerPhase electric propulsion system with BorgWarner’s 31-03 eGearDrive transmission for the all-electric CODA front-wheel drive five-passenger sedan, scheduled for introduction in the California market in mid-2010.

The UQM PowerPhase electric propulsion system has a peak power rating of 100 kW (134 hp) and a continuous power rating of 45 kW (60 hp). It delivers peak torque of 300 N·m (221 lb-ft) and continuous torque of 160 N·m (118 lb-ft).

With a diameter of only 280 mm (11 inches) and a weight of 46 kg (102 lbs), this motor will fit easily in a wide range of passenger vehicles, including subcompacts. The system also features optimized four-quadrant performance, dynamic torque, speed and voltage control, and system energy efficiency of more than 90% across a substantial portion of its power curve.

The BorgWarner 31-03 eGearDrive transmission is suited for mid-range electric vehicles on either front-wheel drive or rear-wheel drive transverse driveline applications. An eGearDrive system is featured on the Tesla Roadster electric vehicle.

The single-speed 31-03 uses a unique flange and coupling for adaptation to the PowerPhase motor housing to accommodate input shaft speeds of up to 14,000 rpm with a wide range of reduction ratios and very high operating efficiency. The 31-03 is also available with an optional ePark feature, an electronically actuated park lock system.

An electric powertrain consisting of a UQM PowerPhase electric propulsion system mated with the BorgWarner 31-03 eGearDrive transmission provides a compact and torque-dense package, delivering nearly 2,000 N·m (1,500 lb-ft) of torque with a gear ratio of approximately 6.5 to 1. The package will propel a mid-size passenger vehicle at highway speeds with economical, high powertrain efficiency.

Source: Green Car Congress