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Ford Explorer, Jeep Grand Cherokee flunk IIHS passenger-side crash test

The Insurance Institute for Highway Safety (IIHS) has uncovered major safety-related problems while crash testing a number of popular midsize SUVs. Among those that scored an overall rating of "poor," the lowest possible score, are the Ford Explorer and Jeep Grand Cherokee. Both SUVs showed a high risk of injury to a front passenger during the IIHS' passenger-side small overlap front crash test. This test simulates what might happen if a car or SUV strikes an immovable object, like a telephone pole, at 40 mph and with roughly 25-percent of its front width. "Although some vehicles in this group offer very good protection, in other models, the airbags, safety belts and structure showed serious deficiencies," says IIHS chief research officer, David Zuby. "In those SUVs, a front-seat passenger would be at risk of injuries to the head, hip or leg in a right-side small overlap front crash." In the 2018 Ford Explorer, the front of the SUV showed the structure was "seriously compromised" during both driver- and passenger-side small overlap crash testing, according to the IIHS. The lower and upper door hinge pillar showed intrusion levels of 15 and 13 inches, while the door sill itself was pushed inward 6 inches toward the crash test dummy. The IIHS states these results indicate a high probability that a front occupant would suffer injuries to their right hip and lower left leg. The 2018 Jeep Grand Cherokee didn't fare much better. Not only did the Jeep exhibit 10 inches of intrusion at the lower door hinge pillar, the front passenger crash test dummy's head hit the dashboard through the front airbag. Worse still, the side curtain airbag didn't deploy and the front passenger door opened. The IIHS says there is a strong chance this would result in right leg injuries, along with the possibility of a serious head injury. Even vehicles that earned an "acceptable" in the small overlap front crash test showed definite room for improvement. The 2018 Honda Pilot, for example, showed good structural performance during the crash itself. But the front passenger crash test dummy's head slid off the deployed airbag and hit the dashboard hard, indicating a head injury might result in a similar real-world crash scenario. Two other SUVs that scored "acceptable" ratings included the 2018 Nissan Pathfinder and 2018 Toyota Highlander. Scoring top marks of "good," the highest rating, in these IIHS crash tests were the 2018 Volkswagen Atlas, 2018 GMC Acadia, and 2019 Kia Sorento.

Jeep Wrangler 4xe's hybrid powertrain: Could it be headed to other FCA products?

On its own, the 2021 Jeep Wrangler 4xe plug-in hybrid is a big deal for the brand and the model line. It's the most powerful and most efficient Wrangler by significant margins, and it doesn't give up the off-road capability that makes the Wrangler so special. But another great thing about this hybrid powertrain is its potential to be transplanted into other FCA vehicles. Just to recap, the layout of the Wrangler's hybrid powertrain, front to back, is as follows: engine, clutch, electric motor, clutch, transmission. The engine is the same 2.0-liter turbocharged four-cylinder that's a standalone engine for the Wrangler. The transmission and electric motor are sort of one unit, with the motor and clutch replacing the torque converter of the transmission. And the transmission itself is the ubiquitous eight-speed ZF automatic gearbox. Its transmission code name is 8HP75PH. The ZF eight-speed is available in every FCA product with a longitudinally-mounted engine and rear-wheel drive or four-wheel drive, with variations in the amount of power and torque it can handle. Not only that, but the Ram 1500 and 2500 and the Jeep Wrangler and Gladiator all have powertrains that utilize the non-hybrid version of the 8HP75 transmission specifically. Even the gear ratios for that transmission as well as the 8HP70 used in the Jeep Grand Cherokee, Dodge Durango, Dodge Charger and Chrysler 300 are nearly identical to those in the 8HP75PH. And a Fiat-Chrysler representative confirmed that the transmission portion of the hybrid drivetrain is basically carry-over from the regular 8HP75. So a transplant could be a relatively simple process. As for which of these models would be the most likely to receive the hybrid powertrain first, the Jeep Gladiator and Ram 1500 would seem like good bets, since they likely have the most similar transmissions, and the Gladiator in particular because of its closely-related underpinnings to the Wrangler. Both are also highly profitable trucks that sell well and could justify the development costs of adapting another powertrain. And in the case of the Ram, there's the impending F-150 hybrid to think about. Although Ram isn't going after a fully electric model, a PHEV could be a nice middle ground. A potential limiting factor would be whether the hybrid powertrain would be sufficiently robust to handle heavy payload and towing demands, particularly over longer periods.

Chrysler says its 8-speed transmissions will save 700 million gallons

Chrysler Group's TorqueFlite eight-speed transmission could be earning some serious green bragging rights if the company's projections are correct. The recently widely proliferated automatic gearbox, which is now in more than a million vehicles around the world, is poised to save drivers an estimated 700+ million gallons of fuel over the vehicles' lifetimes (an expected cost savings of $2.5 billion). In addition, Chrysler expects a reduction in CO2 emissions by more than six million metric tons. According to Chrysler, and depending on the vehicle, the TorqueFlite can improve fuel economy. The TorqueFlite autobox features particularly close ratios from fifth to eighth gear (see the press release below for the specific numbers), and uses low-viscosity fluid that doesn't need to be replaced. Transmission software adapts to the driving situation to optimize efficiency based on driver behavior, temperature, grade, stability control, and longitudinal and lateral acceleration. The TorqueFlite is capable of handling a variety of duties. As evidenced by the wide range of vehicles Chrysler Group has seen fit to equip with the eight-speed transmission, the TorqueFlite is capable of handling a variety of duties. Since its 2012 introduction, the TorqueFlite has gone from performing cog-swapping duties in Dodge Charger and Chrysler 300 models equipped with the 3.6-liter Pentastar V6 to changing gears in vehicles such as the Pentastar- and Hemi-powered Dodge Durango, Jeep Grand Cherokee and even the Ram 1500 EcoDiesel. For the 2015 model year, the eight-speed is finding its way into even more vehicles with the addition of a third version. In addition to the American-made TorqueFlite 845RE and 8HP70, the new 8HP90 will be manufactured in Saarbrucken, Germany. The 8HP90 is designed for higher torque loads, making it ideal for high-performance vehicles like the 2015 Dodge Challenger SRT Hellcat. The already-in-use 8HP70 will expand its duties to be used in 2015 Hemi models such as the Dodge Charger, Challenger, and Challenger SRT8. You can see the list of those benchmarks in Chrysler's press release below.