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Jeep introduces new Renegade small SUV; segment-first 9-speed transmission
4 March 2014
|2015 Jeep Renegade. Click to enlarge.|
Jeep unveiled the new 2015 Jeep Renegade small SUV at the Geneva Motor Show. Designed for global markets, the Renegade offers 16 powertrain combinations globally and the segment’s first nine-speed automatic transmission.
Leveraging 4x4 technology from the new Jeep Cherokee, the Renegade offers a full-time 4x4 system (Jeep Active Drive) and a full-time 4x4 system with 20:1 crawl ratio (Jeep Active Drive Low) The Renegade is also the first small SUV to feature a disconnecting rear axle and power take-off unit (PTU) (earlier post) to provide Jeep Renegade 4x4 models with enhanced fuel economy. The system instantly engages when 4x4 traction is needed.
Both Jeep Active Drive and Active Drive Low 4x4 systems include the Jeep Selec-Terrain system, providing up to five modes (Auto, Snow, Sand and Mud modes, plus exclusive Rock mode on the Trailhawk model).
Powertrain options include:
- Four MultiAir gasoline engine offerings
- Two MultiJet II diesel engine offerings
- Efficient and flex-fuel capable E.torQ engine
- Emissions and fuel-saving Stop&Start technology
- Segment-first nine-speed automatic transmission
- Two manual and one dual-dry clutch transmission (DDCT) offerings
MultiAir Turbo and MultiAir2 Turbo gasoline engines.
1.4-liter MultiAir2 engine with Stop&Start will be offered in Europe / Africa / Asia-Pacific / Latin America with options of six-speed manual and dual dry clutch (DDCT) transmissions.
The latest variant from the Fully Integrated Robotisized Engine (FIRE) family delivers up to 103 kW (140 CV, 138 horsepower) and 230 N·m (170 lb-ft) of peak torque. Start&Stop technology reduces emissions and fuel consumption. The 1.4-liter I-4 features the second-generation of the award-winning MultiAir electro-hydraulic fully variable valve-lift system. MultiAir2 adds a two-percent efficiency improvement (on the NEDC cycle) over the original, 16-valve single-overhead cam MultiAir variant.
1.4-liter MultiAir Turbo engine will be offered in North America, paired with a six-speed manual. The turbocharged 1.4-liter MultiAir Turbo I-4 generates 119 kW (160 horsepower) and 250 N·m (184 lb.-ft.) of peak torque. Boost pressure is dynamically managed to provide a broad torque curve over a wide variety of ambient conditions, with a peak pressure of 22 psi at 4,000 rpm. Exclusive MultiAir valve-actuation technology controls intake air cylinder by cylinder and stroke by stroke. The resulting precision reduces carbon-dioxide emissions and boosts fuel-economy up to 7.5% compared with an engine equipped with a conventional valvetrain.
1.4-liter MultiAir2 Turbo engine with Stop&Start will be offered in Europe / Africa / Asia-Pacific / Latin America, paired with the 9-speed automatic. This 1.4-liter intercooled and turbocharged I-4 features MultiAir2 intake-valve management and Stop&Start technology to cut emissions and fuel consumption. With premium fuel, this latest FIRE family variant produces 125 kW (170 CV, 168 horsepower) and 250 N·m (184 lb.-ft.) of peak torque.
2.4-liter MultiAir2 Tigershark engine will be offered in North America / Latin America / Africa / Middle East / Australia / Asia-Pacific, coupled with the 9-speed. The 2.4-liter MultiAir2 Tigershark engine produces 137 kW (184 horsepower) and 177 lb-ft (236 N·m) of peak torque. This 16-valve I-4 delivers maximum refinement via features such as a fully isolated aluminum head cover and an oil pan with acoustic material sandwiched between its steel layers.
Powder-metal connecting rods have a full-floating piston pin with diamond-like carbon coating for friction reduction. A balance shaft module minimizes vibration. Additionally, the 2.4-liter Tigershark features a two-stage oil-pressure relief system that reduces engine-oil pumping loads at low engine speeds for greater fuel efficiency. The engine also is flex-fuel compatible.
E.torQ engine with Stop&Start. The 1.6-liter E.torQ engine with Stop&Start will be offered in Europe / Africa / Australia / Latin America, coupled with a 5-speed manual. The 16-valve 1.6-liter E.torQ I-4 delivers 81 kW (110 CV, 108 horsepower) and 152 N·m (112 lb-ft) of peak torque. Stop&Start technology helps cut emissions and fuel consumption.
Unique components help the lightweight engine deliver high torque at low engine speeds while contributing to reduced fuel consumption. Graphite-coated pistons are optimized to reduce friction and weight. Forged connecting rods and an aluminum oil pan aid weight savings. For increased refinement, the E.torQ crankshaft features eight counterweights.
MultiJet II diesel engines with Stop&Start.
1.6-liter MultiJet II engine with Stop&Start will be offered in Europe with a 6-speed manual. The 1.6-liter I-4 delivers 88 kW (120 CV, 118 horsepower) and peak torque of 320 N·m (236 lb-ft), making it a leader among engines with displacements of 1.8 liters or less. It features an electronically controlled variable-geometry turbocharger, and benefits from MultiJet II, the common-rail fuel-injection technology.
The compact turbodiesel features a cast-iron crankshaft and connecting rods. Stop&Start technology helps reduce emissions and eliminates fuel consumption that would result from idling. Includes a close-coupled Diesel Particulate Filter (DPF) and low-pressure EGR (Exhaust Gas Recirculation) system for Euro 5+ emissions.
2.0-liter MultiJet II engine with Stop&Start will be offered in Europe / Asia-Pacific with either the 9-speed automatic or 6-speed manual. With output offerings of 103 and 125 kW (140 and 170 CV), the 2.0-liter MultiJet II I-4 turbodiesel diesel delivers more power and performance, while still meeting Euro 6 emissions standards. An electronically controlled variable-geometry turbocharger improves power delivery.
Peak torque is rated at 350 N·m (258 lb-ft). A new low-pressure EGR system with an electrically activated EGR valve contributes to emissions reduction, along with close-coupled NSC/DPF. Lower engine friction reduces fuel consumption along with Stop&Start technology, which also helps cut emissions.
Nine-speed 948TE automatic transmission is available in all regions for use with the 1.4-liter MultiAir2 Turbo engine with Stop&Start (4x4); 2.4-liter MultiAir2 Tigershark engine (4x2 or 4x4); and 2.0-liter MultiJet II engine with Stop&Start (4x4).
The wide ratio spread delivers an aggressive first gear ratio of 4.71 for low-end performance and small gear ratio steps, which afford luxury-car levels of shift refinement. A unique set of four overdrive ratios improve highway fuel economy and reduce overall noise, vibration and harshness (NVH) levels.
The fully electronic nine-speed automatic features on-the-fly shift map changing, with AutoStick manual shifting capability. More than 20 individual shift maps for specific conditions optimize shift quality and shift points for improved fuel economy, performance and drivability.
To determine the appropriate shift mode, the transmission’s software takes into account variables such as engine-torque gradients, kick-down events, longitudinal and lateral acceleration and grade changes. For improved driving comfort and refinement, the transmission control strategy closely monitors temperature, speed and electronic stability control activation.
The nine-speed automatic transmission accommodates a 20:1 crawl ratio setting. This Trail Rated 4x4 rock-crawl ratio is enabled by a tall 4.71:1 first gear ratio coupled to the 4.334:1 final drive.
Six-speed C635 dual dry clutch transmission (DDCT) will be offered in Europe / Africa / Asia-Pacific / Latin America, for 1.4-liter MultiAir2 Turbo engine with Stop&Start (4x2).
Sharing its 6.68 gear-ratio spread design with a manual transmission, the DDCT features a final-drive ratio of 4.438 for quick acceleration while maintaining fuel economy. And with its first-gear overall launch ratio of 17.1:1 and precision-controlled shift points, it delivers precise gear. Designed to handle the turbocharged engine’s output, the DDCT utilizes a tubular intermediate shaft with equal-length half shafts to mitigate torque steer.
6-speed C635 manual transmission will be offered in all regions for use with the 1.4-liter MultiAir2 engine with Stop&Start (4x2); 1.4-liter MultiAir Turbo engine (4x2 or 4x4); 1.6-liter MultiJet II engine with Stop&Start (4x2); and 2.0-liter MultiJet II engine with Stop&Start (4x4).
Like the DDCT, the six-speed manual transmission features a 6.68 ratio spread with a 4.438 (MultiAir engines) and 3.833 (MultiJet II engines) final-drive ratio for fuel efficiency at faster speeds. With a first-gear launch ratio of 18.4:1, this manual transmission offers quick acceleration with smooth, precise shift quality. A tubular intermediate shaft with equal-length half shafts helps mitigate unwanted torque steer.
Five-speed C510 manual transmission will be offered in Europe / Asia-Pacific with the 1.6-liter E.torQ engine with Stop&Start (4x2). Developed for high-output applications, the proven C510 five-speed manual transmission has been upgraded for improved shift quality, and features a 3.929 final-drive ratio to deliver quicker acceleration and faster top speed without compromising fuel-efficiency.
Designed to handle increased torque loads, this manual transmission includes an intermediate shaft with equal-length half shafts to mitigate torque steer; and oversized half shafts for increased strength and durability, and to reduce torsional stress in the driveline during performance driving.
The final assembly location for the Renegade will be at the Melfi Assembly Plant. The Renegade’s global portfolio of powertrain production includes the United States, Italy and Brazil.
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