THE NEW interior radar feature developed by Volvo Cars' engineers is designed to be accurate and sensitive enough to detect the tiniest movements at sub-millimetre scale — such as those of a sleeping toddler.
It's the first such feature to cover the entire interior of the car, including the trunk.
The new radar system, which will be included in the forthcoming Volvo EX90 all-electric sport utility vehicle, is designed to address a cause of tragedy that has proven all too real for too many families.
The United States government statistics show that since 1998, more than 900 children in the country have died after being left in hot cars. Heartbreakingly, most hot car deaths occur because someone forgot that their child was in the car at the time.
Volvo Cars want to help ensure that no one will be left behind or forgotten. The new interior radar system will first be rolled out as standard, where regulation allows, on the Volvo EX90 that will be revealed on Nov 9. The feature will also be included in other forthcoming Volvo car models.
With sensors integrated in the overhead console, the roof-mounted reading lamps and the trunk of the car, it is the first interior radar system that can detect sub-millimetre movement in the entire interior of the car.
To cover as much of the cabin as possible and sense whether a child or pet has been left in the car, radars are spaced throughout the cabin from front to back, including the rear trunk.
"No one chooses to be distracted or tired but we know it can happen," said Lotta Jakobsson, senior technical specialist in injury prevention.
"We're all human and distraction is a fact of life. With the help of cutting-edge technology, we'll support you when you're not at your best and help you avoid leaving family members or pets behind by accident."
The radar notifies you when you need it and to help avoid "reminder fatigue", Volvo Cars' experts have determined that the best time to signal the potential presence of family members left inside the car is when you attempt to lock the car.
Every time you try to lock the car, the interior radar system is activated and determines whether your car is empty of any people or pets, before it allows the car to be locked.
If a family member or pet is detected inside, the car will remain unlocked and the car will display a reminder to check the cabin for occupants on the centre console screen.
The car's climate system can remain on if people or animals are detected in the cabin to improve comfort. This can also help lower the risk of hypothermia or heatstroke. The system will remain working if the high-voltage battery has enough charge.
"We've always been a leader in safety and we want to continue protecting lives by setting new standards in automotive safety," said Jakobsson.
"That also means making you feel safe and giving you peace of mind. That type of emotional safety will help you enjoy life to the fullest, while at the same time helping you to prevent tragedies from happening."
The interior radar system will come as standard in all countries where the 60GHz frequency used by the system is approved for automotive use.
Volvo Cars is constantly working with individual markets to secure approval and will activate the system as and when approvals are granted.