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Apple's 'Project Titan' researching a smart seatbelt that could control a CarPlay device

An offshoot of research from Apple's "Project Titan" car project is work on a smart seat belt that could be used to control a car's entertainment or even self-driving system in the future.

The roof-mounted sensor array used in Apple's 'Project Titan' self-driving car system

The roof-mounted sensor array used in Apple's 'Project Titan' self-driving car system


Passengers in a car or van may enjoy the benefits of an infotainment system, but unless they are near to the head unit, they have no ability to control what is being played without asking another person or releasing their seat belt. Current systems also force everyone to listen to the same audio, unless they have headphones and their own entertainment source, which could cause issues for groups with differing musical tastes.

Likewise, a self-driving car system may not have controls that are within reach of the driver, or if the standard steering wheel and pedals are removed, no direct means of control at all. Such designs would make it useful for firms in the self-driving vehicle field to create alternative ways to manage a vehicle's journey.

Published on Tuesday by the U.S. Patent and Trademark Office, Apple's patent for an "augmented safety restraint" aims to solve that problem, and potentially more, by adding more elements to a seat belt. Apple believes it is possible to add sensors or components, like microphones and speakers, to the outward-facing side of a seat belt that goes across the chest, allowing for passengers to interact with devices.

In one example, Apple suggests two spaced apart speakers could be embedded in the strap to provide an audio experience specific to a passenger. The addition of microphones in the restraint combined with speakers could allow for enhanced communication between individuals who may not be sat near to each other in a noisy vehicle, or to take part in a phone call via a smartphone connected to the infotainment unit.

Images in Apple's patent showing haptic feedback and sensor locations in an augmented seat belt

Images in Apple's patent showing haptic feedback and sensor locations in an augmented seat belt


To interact with the strap, Apple proposes the use of a touch-based or haptic communication feature, with the former potentially able to interpret gestures from the user as well as tapping. For haptic feedback, vibrations could be transmitted through the strap to the user's chest, which could be used to alert to messages or, in the case of a driver, warn of potential issues like lane drift.

The inclusion of gestures could allow for the seat belt to control a navigation system in a vehicle and its climate control system, among other elements.

While the existence of an Apple patent indicates Apple has considered working in specific areas, they are not necessarily an indication of what to expect from future products and services, and may not even get to be used by consumers at all.

Such an alternative control system would be handy for use in a self-driving vehicle, similar to the system currently being worked on as part of Apple's Project Titan. The project, which seeks to develop self-driving vehicle technology, currently has Apple operating a fleet of test vehicles in California, with Apple also potentially working with Volkswagen on the PAIL program to ferry employees between Apple offices in autonomous vans.

Apple is also tipped to be working on its own car, one that is also likely to be self-driving, though such a vehicle is not expected to hit public roads until 2023 at the earliest.

Last week, Apple cut more than 200 employees from its Project Titan group, as part of a restructuring effort.

Apple has considered other ways for passengers to interact with self-driving cars, including one patent filing in March 2018 involving the use of a designated gesture zone within a vehicle that is the only place where gestures are accepted to issue commands to a vehicle.

This is also not the only seat belt-related patent or application from Apple. "Haptic feedback for dynamic seating system," published in August, explained how a seat could be used to alert drivers to events by adjusting the seat and the tension of the belt, or in the situation where a crash is imminent, automatically shift itself to a position that is safer for the passenger before the impact occurs.