Unique Mobility Inc (UQM) announced today that it has delivered to Deere & Company (NYSE: DE – News) a John Deere hybrid electric concept vehicle incorporating both of the latest advancements to UQM(R) propulsion system technology, 10 to 1 constant power speed ratio and full wave commutation technology. Constant power speed ratio (CPSR) is the ratio between the top speed of a motor and its base speed. Across this speed range, a motor is able to deliver maximum power. The Company’s permanent magnet electric propulsion systems achieve a 10 to 1 CPSR. [ more ]
