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eTorque: The Ingenious “Waste Recycling” System at Work Inside Jeep and Ram Trucks

eTorque: The Ingenious “Waste Recycling” System at Work Inside Jeep and Ram Trucks

Posted at Fri, Mar 26, 2021 12:00 AM

In a complex ecosystem of businesses, housing, and other developments, there are usually ways devised to recycle waste. Some forms of waste on our Earth don't have to pollute our environment in various ways after we are finished with them, and the same is true during the operation of two of our favorite vehicles here at Landmark Dodge of Atlanta! In Ram Trucks and Jeeps, the eTorque function now uses valuable energy that would have gone to waste without its function.

This function improves fuel economy, provides better towing and hauling capability, and enhances the overall driving experience. This mild-hybrid system uses a belt-driven motor-generator unit that is in place of a conventional alternator on the engine. This motor-generator supplies a 48-volt current to a 430 watt-hour lithium-ion nickel manganese cobalt graphite battery at all times the engine is running. There is also a DC-to-DC converter that changes 48-volt current to 12 volts, which can then power the accessories inside or be allocated for charging the conventional 12-volt lead-acid battery. 

When you slow down or hit the brakes, the brake regeneration process sees a positive flow directly to the 48-volt battery pack for storage and keeping the battery pack at a proper charge level. In the Ram 1500, a specially-designed air-cooled battery pack is mounted at the rear wall of the cabin and insulated to the potential hum of the cooling fans. By using the motor-generator and 48-volt battery pack together, the automatic engine stop-start function sees a great improvement as well. The first engine stop-start functions were a bit slower and less reliable, but with the advent of eTorque, now have such a smooth operation you almost don't even notice it's doing its job!

During an engine restart, eTorque immediately dispatches up to 90 lb-ft of supplemental torque to the crankshaft to see the engine firing up again. The wheels receive valuable torque more than twice as fast as in the typical engine stop-start systems that have a conventional starter battery. The motor-generator can draw heavily on the 48-volt battery to provide extra torque that aids acceleration for highway speeds and in situations that require heavy towing. 

The Jeep Wrangler is an excellent vehicle to take out for a test drive to celebrate the coming of enjoyable driving weather, and the Sport S provides air conditioning, a leather-covered steering wheel, power windows and locks, automatic headlamps, heated mirrors, and more. With the introduction of the Jeep Wrangler Rubicon 392, die-hard outdoor enthusiasts now will enjoy all of the Rubicon's low-speed off-road chops with a new additive of high-speed off-road excitement. 


The 2021 Ram 1500 is a tough and capable truck that rides smoother than its rivals, boasts one of the most lavish interiors in existence, and works hard to emulate and provide everything a luxury car would. Its innovative air suspension, built-in cargo-bed bins, split-folding tailgate, and giant 12.0-inch touchscreen are options its rivals can't claim, and it was also an easy pick for the 2021 10 Best list from Car and Driver.

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