System and method for minimizing occupant injury during vehicle crash events

• US 9,539,969 B2
• Filed: 05/06/2009
• Issued: 01/10/2017
• Est. Priority Date: 05/06/2008
• Status: Active Grant

• Current Assignee: ActiveRestraint, LLC
• Original Assignee: ActiveRestraint, LLC
• Inventors: Maslen, Eric H., Bose, Dipan, Crandall, Jeff R., Untaroiu, Costin D.
• Primary Examiner(s): MUSTAFA, IMRAN K
• Application Number:
  US12/991,501
• Publication Number:
  US 20110130111A1
• Time in Patent Office: 2,806 Days
• Field of Search: 701/45
• US Class Current: 1/1
• CPC Class Codes: B60R 2021/0027 Post collision measures, e.g. notifying emergency services
• CPC Class Codes: B60R 2021/01259 Brakes
• CPC Class Codes: B60R 2021/01265 Seat belts
• CPC Class Codes: B60R 21/013 including means for detecting collisions, impending collisions or roll-over
• CPC Class Codes: B60R 21/0132 responsive to vehicle motion parameters , e.g. to vehicle longitudinal or transversal deceleration or speed value
• CPC Class Codes: B60R 21/0134 responsive to imminent contact with an obstacle , e.g. using radar systems
• CPC Class Codes: B60R 21/0136 responsive to actual contact with an obstacle , e.g. to vehicle deformation, bumper displacement or bumper velocity relative to the vehicle monitoring crash strength in combination with passenger seat detection B60R21/01558
• CPC Class Codes: B60R 21/015 including means for detecting the presence or position of passengers, passenger seats or child seats , and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
• CPC Class Codes: B60R 21/01526 using piezoelectric elements

Abstract

A method, computer program product and apparatus for minimizing occupant injury by optimizing occupant restraint properties and/or actions in real time, during pre-crash and crash phases. The restraint system uses three catalogs and a database linking these catalogs. The catalogs include a catalog of possible occupant states, a catalog of possible collision scenarios, and a catalog of potential restraint control laws. The database is an assessment of injury outcome for each possible combination of occupant state, collision scenario, and restraint control law. In addition to the catalogs, the method requires four computational components: an occupant identifier, a collision identifier, a restraint law optimizer, and a restraint controller.

Claims

1. An occupant restraint method of regulating an occupant restraint system in a vehicle to an event, the method comprising:

linking the occupant restraint system to;

at least one sensor;

an event catalog comprising a predetermined and finite plurality of discrete possible events involving the vehicle,

an occupant catalog comprising a predetermined and finite plurality of discrete possible occupant states in the vehicle;

a catalog of predetermined restraint laws comprising a set of rules that dictate the behavior of at least one restraint mechanism during an event;

an event identifier; and

at least one restraint controller controlling the at least one restraint mechanism;

receiving a sensor data from the at least one sensor;

evaluating in real-time the probability that each possible event in the event catalog and each possible occupant state in the occupant catalog is consistent with the sensor data;

assessing, using a database, each predetermined set of rules for each combination of each probabilistically assessed possible event in the event catalog and each probabilistically assessed possible occupant state in the occupant catalog, wherein the database is at least one of created one of prior to system use and during system use, but prior to an event;

selecting an element of the restraint law catalog based on the probabilistic assessment, wherein a restraint law optimizer uses the database to select the element of the restraint law catalog;

sensing the event with the at least one sensor; and

operating the at least one restraint controller to perform the selected element of the restraint law catalog.

2. The method of claim 1, wherein the at least one sensor, the occupant catalogs, the event catalog, the catalog of restraint laws, the database, and the at least one restraint controller are connected by one of wireless connection and hard wired connection.

3. The method of regulating an occupant restraint system of claim 1, wherein the event is a collision.

4. The method of regulating an occupant restraint system of claim 1, wherein the event is a change in acceleration.

5. The method of regulating an occupant restraint system of claim 1, wherein the event is a change in occupant position.