Safety system for people inside and outside the vehicle In case of crash
The PSIS (Passive Safety Improvement System) is a new device that protects people inside and outside vehicles BEFORE the crash occurs. Thus, the protection systems are effective for a longer time than with current technology, for optimal performance.
Benefits
- Optimal protection thanks to anticipating the crash
- Protection is insured throughout the accident thanks to new gas generating technique
- Effective protection of pedestrians, cyclists, etc. before initial impact
- Flexibility in terms of airbag design (adapted shapes, materials, etc.)
- No risk of gas generators explosion in the event of failure
- Aggregating already qualified elements
Issue
The passive safety systems in vehicles are currently triggered by the crash. The activation time is very short and limits safety capabilities.
Moreover the protection of people outside the vehicle (1/3 of accidents involve pedestrians, cyclists, motorcyclists, etc.) is very poor.
Solution
With the autonomous vehicle, the crash certainty can be ascertained before the impact, enabling in-depth reevaluation of the safety passive systems.
When the electronic control system of an autonomous vehicle, or a driver-assisted vehicle detects a shock as inevitable, the PSIS - Passive Safety Improvement System- triggers the appropriate safety devices BEFORE the shock actually occurs.
For people outside the vehicle:
- An inflatable structure, located at the front of the vehicles is deployed BEFORE the impact. It catches and enfolds the pedestrian, therefore preventing any contact with the vehicle.
For passengers of the vehicle:
- Inflatable structures (airbags) are airtight and pressurized within some tenths of a second (ten times as long as the current generators). They thus reduce the risks for people out of position, and, being airtight as they are, remain effective in case of multiple impacts. Their inflatable structures wraparound people in their seats, for a more effective protection of adults and children.
For optimal performance, all looseness of seatbelts is removed. A shoulder energy absorber complements the performance. The seatbelt therefore enhances its function as a key element for protecting the vehicle’s passengers.