Wires and cables help design teams add electronic features and functions, but networks and wiring harnesses add a fair amount of weight while their connections can be the cause of failures. That’s prompting developers to examine ways to reduce the size and weight of wires and cables.
Sensors have become central elements in powertrains as designers add functions from stop-start to double clutches. More stringent fuel efficiency and emissions requirements are driving many changes in sensor technologies as well as in cabling and standards.
There is no excuse for gear noise in any electrified vehicle drivetrain, asserts an expert in driveline NVH. The solution is in a systems approach and thorough root-cause analysis at the design stage. (For more detailed images, click on the arrow at the upper right corner of this box.)
Volvo Bus and Swiss technology group ABB are collaborating to develop and commercialize hybrid- and full-electric buses that employ “open standards-based” dc fast-charging systems. Buses will be charged quickly through an automatic roof-top connection system at bus stops, or through cabled charging systems overnight.
Edmund Optics’ TECHSPEC Germanium meniscus lenses feature a durable design that is ideal for use in a variety of demanding IR applications, including IR imaging or surveillance, remote sensing, and IR spectroscopy.
Shiloh Industries claims to offer the industry’s lightest aluminum door blank for mass production without compromising part integrity or formability, allowing automakers to further reduce mass compared to existing methods.
To achieve weight savings in vehicles, OEMs and component suppliers are increasingly using ultra-high-strength steel, aluminum, magnesium, plastics, and composites. One strategy is to develop components using a multi-material concept. Ashok Leyland researchers used this approach when developing a bimetal brake drum with cast-iron inner ring and aluminum outer shell.