![]() ![]() Meanwhile, the Volt team is clearly proud of the modifications to their second-generation Voltec system. We know that the CT6 will offer a plug-in hybrid version that will be unveiled at the Shanghai Motor Show in April, just three weeks after the New York Auto Show where the CT6 will be launched.Ĭould the new Voltec system be adapted to that car's powerful turbocharged V-6, or some different engine, to provide the performance required by a Cadillac plug-in hybrid and perhaps 12 to 20 miles of electric range? If less torque is required, excess engine torque may also be diverted to recharge the battery before the engine switches off.Ģ016 Cadillac CT6 in new spot ‘The Daring: No Regrets’ In this mode, the engine powers the wheels through a fixed gear ratio-with or without added torque from the motors. Then the second mode kicks in-and this is an addition for the second-generation Volt. MORE: 2016 Chevrolet Volt: 50-Mile Range, 41 MPG, Five Seats, All New (Photos)ĭepending on vehicle speed and torque requirements, this mode operates up to a little more than 40 mph at maximum. It may even use one motor to power the wheels along with the engine while the second motor acts as a generator to recharge the battery. This mode continuously trades off among the most efficient operating speed for the engine, the power demanded by the driver, the battery state of charge, and the use of one or two motors. ![]() Then the engine will start-or earlier if maximum acceleration is demanded-and the first of the modes will be employed In the new Volt, Motor A substitutes a ferrite magnet, reducing its cost, while Motor B continues to use neodymium.īut it's the three extended-range modes (meaning the engine is on) used after the Volt's first 50 or so miles where the largest changes occur.Įven after the battery is depleted, the Volt will move away from rest under electric power alone up to a speed of 10 to 15 mph. In the first-generation Volt, both motors used the rare-earth metal neodymium in their magnets. The two motors themselves, known as Motor A and Motor B, are the same diameter but differ in their construction. Its two electric modes are pretty simple: Either one motor powers the car, or both do. The pair walked us through the five separate operating modes of the new Voltec system: two electric-only, and three blended.ĪLSO SEE: Is The 2016 Chevy Volt GM's Future Hybrid System In Disguise? The pair drew on two papers describing the details of the updated Voltec powertrain that they presented earlier this month at an annual hybrid and electrified technology conference put on by the Society of Automotive Engineers (SAE).įor the record, the new transmission and final drive unit is formally known as the 5ET40 Electrified Transaxle. Two weeks ago, we spoke at length with Pete Savagian, general director of electric drives and systems engineering, and Tim Grewe, chief engineer for vehicle electrification. 2016 Chevrolet Volt plug-in hybrid - details of Voltec drivetrain from SAE presentations, Feb 2015 ![]()
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