- Feb 5, 2018
The addition of the eTorque mild hybrid system is one of several changes made to the powertrains for the 2019 Ram 1500. The goal: Improve performance, fuel economy, payload, towing capabilities and drivability. Other changes include upgraded TorqueFlite eight-speed automatic transmissions, strategic weight reductions and innovations, such as quickly heating lubricants to reduce viscosity-related efficiency losses. The eTorque mild hybrid system replaces the traditional alternator on the engine with a belt-driven motor generator unit that performs several functions. The motor generator unit works with a 48-volt battery pack to enable quick and seamless start/stop function, short-duration torque addition to the engine crankshaft in certain driving situations and brake energy regeneration, which improves responsiveness and efficiency. With the engine running, eTorque’s motor generator unit feeds 48-volt current to a 430 watt-hour lithium-ion Nickel Manganese Cobalt (NMC)-Graphite battery. The small-suitcase-sized, air-cooled battery pack mounts to the rear wall inside the Ram 1500’s cabin. In addition to spinning the engine for restarts, the eTorque unit also recaptures energy during deceleration and braking to feed charge to the battery pack. 3.6-liter Pentastar V-6: 305 horsepower plus outstanding fuel economyThe upgraded eTorque version of the Pentastar V-6 is the standard engine in most trim levels of the 2019 Ram 1500, specifically tuned for truck duty and rated at 305 horsepower and 269 lb.-ft. of torque. The newest Pentastar V-6’s advanced technologies, such as wide-range variable valve timing and two-step variable valve lift, deliver the optimal blend of power and fuel economy, based on the driver’s demand.