GM Voltec platform
| GM Voltec platform | |
|---|---|
| Overview | |
| Manufacturer | General Motors |
| Also called | E-Flex |
| Production | 2010–present |
| Body and chassis | |
| Class | Extended-Range EV (EREV) |
| Vehicles | Chevrolet Volt, Cadillac ELR, Holden Volt, Opel Ampera, Vauxhall Ampera |
Voltec, formerly known as E-Flex, is a General Motors powertrain released in November 2010. The Voltec architecture is primarily a plug-in capable, battery-dominant electric vehicle with additional fossil fuel powered series and parallel hybrid capabilities.
Voltec vehicles like the Chevrolet Volt are all electrically driven, feature common drivetrain components, and will be able to create electricity on board using either a fuel cell or a gasoline motor to generate electricity. Regenerative braking contributes to the on-board electricity generation.
Voltec is a portmanteau word from Volt, Vortec and technology.
The Voltec drivetrain was initially demonstrated as E-Flex in the 2007 Chevrolet Volt concept vehicle that appeared in the North American International Auto Show which introduced the E-Flex drive system as an attempt to standardize many components of possible future electrically propelled vehicles, and to allow multiple interchangeable electricity-generating systems. The initial design as envisioned in the Volt combines an electric motor and 16 kWh (58 MJ) lithium-ion battery plug-in system with a small engine (1.4 liter) powered by gasoline linked to a 55 kW (74 hp) generator. The initial production Volt was propelled by an electric motor with a peak output of 111 kW (149 hp). Ordinarily, the Volt charged while at home overnight (plug-in hybrid-mode) through a charging port. A full charge reportedly takes 10-12 hours from a standard North American 120 V, 15 A household outlet, or 4 hours from a 240 V 15 A SAE J1772 electrical vehicle supply. The Refreshed 2016 Volt featured a 1.5L 4 cylinder engine generator that runs on regular, rather than premium gasoline, and an upgraded battery pack giving about 52 miles per charge vs. the 1st generation's 41 .
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