#Jeep truck plus#

Estimated payments are calculated based on the difference between the residual value and the Net Amount, plus any lease finance charges. Net Amount does not include taxes, insurance, registration, license, retailer administration fees and new tire duties (in Quebec). On approved credit on eligible retail deliveries. Similarly, the motor-generator can draw on the 48-volt battery pack to provide added torque to aid acceleration on the highway and in situations like towing a boat trailer up a ramp at a launch site.Starting at Estimated payments based on 'Net Amount', which represents the 'Starting At' price plus freight (from $1,895 to $2,795), federal A/C charge and applicable green levy charges. The system uses the recaptured energy to aid fuel economy and improve overall drivability.įor example, the eTorque system uses the motor-generator's motor function to add extra torque to the crankshaft during gear changes to minimize noise, vibration, and harshness. In addition to spinning the engine's crankshaft for restarts to help launch the vehicle from a standstill, eTorque also recaptures energy during deceleration and braking to charge the battery pack.

It also simplifies the electrical system that powers the 12-volt vehicle accessories.

The traditional 12-volt battery offers greater efficiency in extreme temperatures for cold starts and the day's initial engine start.

While one might wonder why the 48-volt battery pack does not replace the 12-volt battery, there are two reasons: Torque to the wheels travels within 400 milliseconds, more than twice as fast as in the typical engine stop-start systems that use a conventional starter battery.

of supplemental torque to the engine crankshaft to fire up the engine again. For engine restarts, eTorque sends up to 90 lb.-ft. The reason it works so well is its added power versus that of a typical starting battery. But in the eTorque system with 48-volt power, engine stop-start operation is smooth and almost undetectable. The first systems were not well-liked because they were often clumsy and slow. Maligned when first introduced to the public, engine stop-start systems save fuel by turning off the engine when it would otherwise be idling and using fuel, such as when waiting at stoplights and in bumper-to-bumper traffic. Perhaps the most important of them is the automatic engine stop-start function. The electronically controlled 'smart' system has six separate modes of operation. The combination of the motor-generator and the 48-volt battery pack offers a laundry list of benefits that include improved fuel economy, better towing and hauling capability, and quieter, smoother operation. The system leverages the cooled interior air of the air-conditioned cab. For example, in Ram 1500, the battery is mounted at the cabin's rear wall and insulated to quiet the potential hum of the cooling fans. That energy flows to the 48-volt battery pack for storage and keeps the battery pack at a proper charge level.Ī compact module that is easy for auto engineers to package within a vehicle, the air-cooled battery pack is mounted in various places in the Jeep and Ram vehicles that offer eTorque. This process captures energy that otherwise would dissipate as waste heat.

The motor-generator also creates electricity during deceleration and braking through brake regeneration. Also, it allows it to charge the vehicle's conventional 12-volt lead-acid battery. This enables it to power the vehicle's accessories, which run on a typical automotive 12-volt current. The battery pack array includes a 3-kilowatt direct current-to-direct current (DC-to-DC) converter that changes 48-volt current to 12 volts. The motor-generator unit delivers a 48-volt current to a 430 watt-hour lithium-ion nickel manganese cobalt-graphite battery whenever the engine is running.

With the eTorque system, the motor-generator supplies electricity to a dedicated battery pack used to gain several advantages. But in an eTorque-equipped vehicle, the electrical system is significantly different than in a conventional vehicle. This motor-generator unit performs several functions in addition to the standard operation of the alternator, which is to provide electricity to keep the vehicle's battery charged. In a powertrain fitted with eTorque, a belt-driven motor-generator unit replaces the conventional alternator on the engine.