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How Does Ram 1500's eTorque Mild Hybrid Technology Work? A...

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    How Does Ram 1500's eTorque Mild Hybrid Technology Work?

    A 48-volt battery pack works with the motor generator to create:
    • a seamless start/stop function;
    • a short-duration torque addition to the engine crankshaft in particular driving conditions; and,
    • brake energy regeneration to increase efficiency and responsiveness.
    When the engine is running, Ram eTorque's motor generator unit delivers 48-volt current to a 430 watt-hour lithium-ion Nickel Manganese Cobalt (NMC)-Graphite battery. The battery pack includes a 3-kilowatt DC-to-DC converter. This holds the battery's charge and converts 48 volts to 12 volts so that power can be use to power Ram 1500's accessories and charge its conventional 12-volt lead-acid battery.
    About the size of a small suitcase, the air-cooled battery pack is mounted to the interior rear wall of Ram 1500's cabin. The battery pack's case is insulated to hush the noise generate by the dual cooling fans. Cooling air is then drawn from the truck interior and released through the built-in cabin exhausters.
    Because of its greater efficiency in extreme temperatures, both the V-6 and V-8 engines with Ram eTorque technology will keep a traditional 12-volt starter motor, which is ideal for cold starts and the initial start of the day.
    Beyond spinning the engine for restarts, the eTorque also recaptures energy during deceleration and braking to recharge the battery pack. Further, Ram eTorque also bolsters the driving experience of the 2019 and 2020 Ram 1500 with additional torque to the crankshaft during gear changes, which minimizes noise, vibration, and harshness (NVH).
 
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