Peugeot's first production hybrid is finally coming to market next spring, but most of the technical details are out now. The 3008 Hybrid4 is the first light-duty diesel hybrid to come to market – it is also the first through-the-road (TtR) hybrid.
The mid-size crossover uses a system that consists of a fairly conventional 163-horsepower 2.0-liter inline-four diesel engine driving the front wheels and a 37-horsepower electric motor at the rear axle, which operates completely independent of the internal combustion drivetrain – hence, "through-the-road hybrid."
The diesel drives through an electronically controlled and mechanized six-speed manual gearbox that can either be shifted manually or left in full automatic mode. A more powerful 8 kilowatt high-voltage integrated starter-generator on the engine provides automatic start-stop capability as well as the ability to charge the nickel-metal hydride battery from the engine.
When the battery has sufficient charge, the electric motor alone can propel the 3008 at lower speeds or provide on-demand all-wheel-drive. The rear-mounted motor also provides regenerative braking to charge the battery. The combined output of the two powerplants? 200 horsepower and 369 pound-feet of torque.
This mechanically simpler TtR hybrid drive allows Peugeot to produce a less expensive diesel hybrid than would be possible with a power-split system like the one used by Toyota, all while taking advantage of the highway cruising efficiency of compression ignition. The 3008 Hybrid4 is rated at 61.9 miles per gallon (U.S.) on the EU combined driving cycle with CO2 emissions of just 99 grams per kilometer. Eventually, Peugeot will also add a plug-in version of the Hybrid4 with a lithium-ion battery. Click past the jump for the full skinny after looking over our high-res gallery below.