GKN demonstrates new technology in arctic conditions

GKN has demonstrated a range of new hybrid all-wheel drive (AWD), AWD Disconnect and torque vectoring technologies that will make future cars more intelligent, efficient and enjoyable to drive. Representatives from a range of automakers have test driven a range of innovative drivetrain concepts at the driveline expert's Wintertest proving ground in Arjeplog, Sweden.

Demand for AWD in the smaller cars of the B and C-segments is growing strongly, particularly in markets such as China where the best-selling top-of-the-range models are often AWD. With a new generation of more fuel efficient AWD systems now in production, drivers are enjoying the extra grip, stability and performance.

GKN pioneered the introduction of torque vectoring technology and AWD Disconnect systems and has invested in the development of hybrid AWD technologies. AWD Disconnect systems respond to driver inputs and road conditions to seamlessly switch between AWD and two-wheel drive modes, actively disconnecting components such as the propshaft and rear axle to reduce friction losses and improve fuel consumption.

The company is now working with a number of vehicle manufacturers on AWD hybrids that use GKN's innovative eAxle technology. Porsche recently awarded GKN Technology Partner Status for its successful completion of the work on the 918 Spyder, an innovative plug-in hybrid supercar.

GKN Driveline's Vice President of AWD Product Technology, Rob Genway-Haden, said, "In back-to-back comparisons, almost everybody prefers AWD to front-wheel drive. Not everybody realises that with our latest generation of intelligent AWD systems, the difference in fuel efficiency can be around just three percent.

"By adding our AWD Disconnect, this can be minimised even further. Around 80 percent of the losses in an AWD system are frictional losses and so when you disconnect the rear axle, you remove a lot of the losses. There was particular interest in our AWD Disconnect system for A-segment platforms as it is the only scalable solution available to automakers," he added.

Feedback from test drives of GKN's eAxle systems were overwhelmingly positive. A plug-in hybrid with a GKN eAxle can improve fuel economy by 30 to 50 percent at the same time as boosting performance. GKN has already supported a number of ground breaking and commercially successful eAWD programmes, including the Mitsubishi Outlander, Porsche 918 Spyder and BMW i8.

Among the vehicles tested and demonstrated during GKN Driveline's 2015 Wintertest programme are the Range Rover Evoque with standard and Active Drivelines, the BMW i8 with GKN's two-speed eAxle, the Jeep Renegade with GKN's AWD Disconnect system for compact SUVs, and the BMW X6 with GKN's electronic torque vectoring system. A number of development vehicles used in research programmes for automakers were also demonstrated.