Vehicular impact reactive system and method

• US 20050278098A1
• Filed: 07/18/2005
• Published: 12/15/2005
• Est. Priority Date: 05/23/1994
• Status: Active Grant

• Current Assignee: American Vehicular Sciences LLC (Acacia Research Corporation)
• Original Assignee: Automotive Technologies International Incorporated
• Inventors: Breed, David S.
• Granted Patent: US 7,359,782 B2
• Time in Patent Office: Days
• US Class Current: 701/45
• CPC Class Codes: B60K 2360/149 Instrument input by detecting viewing direction not otherwise provided for
• CPC Class Codes: B60K 35/00 Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
• CPC Class Codes: B60K 35/10 Input arrangements, i.e. from user to vehicle, associated with vehicle functions or specially adapted therefor
• CPC Class Codes: B60R 2021/0004 Frontal collision
• CPC Class Codes: B60R 2021/0006 Lateral collision
• CPC Class Codes: B60R 2021/0018 Roll-over
• CPC Class Codes: B60R 21/0134 responsive to imminent contact with an obstacle , e.g. using radar systems
• CPC Class Codes: G01S 13/931 of land vehicles
• CPC Class Codes: G01S 17/931 of land vehicles
• CPC Class Codes: G01S 2013/9315 Monitoring blind spots
• CPC Class Codes: G01S 2013/9316 combined with communication equipment with other vehicles or with base stations
• CPC Class Codes: G01S 2013/93271 in the front of the vehicles
• CPC Class Codes: G01S 2013/93272 in the back of the vehicles
• CPC Class Codes: G01S 2013/93274 on the side of the vehicles
• CPC Class Codes: G01S 7/023 Interference mitigation, e.g. reducing or avoiding non-intentional interference with other HF-transmitters, base station transmitters for mobile communication or other radar systems, e.g. using electro-magnetic interference [EMI] reduction techniques auxiliary means for detecting or identifying radar signals or the like G01S7/021; means for anti-jamming G01S7/36
• CPC Class Codes: G01S 7/0231 Avoidance by polarisation multiplex
• CPC Class Codes: G01S 7/0232 Avoidance by frequency multiplex
• CPC Class Codes: G01S 7/0234 Avoidance by code multiplex
• CPC Class Codes: G01S 7/0235 Avoidance by time multiplex

Abstract

System and method for reacting to an expected impact involving a vehicle including an anticipatory sensor system for determining that an impact involving the vehicle is about to occur prior to the impact and an impact responsive system coupled to the sensor system and actuated after its determination of the expected impact. The sensor system includes wave receivers spaced apart from one another, each receiving waves generated by, modified by, or reflected from a common object exterior of the vehicle. The impact responsive system attempts to reduce the potential harm resulting from the impact and can be a protection apparatus which protects a vehicular occupant or a pedestrian, such as one including an airbag and an inflator for inflating the airbag.

Claims

1. In a motor vehicle, a system for reacting to an expected impact involving the vehicle, comprising:

an anticipatory sensor system for determining that an impact involving the vehicle is about to occur prior to the impact, said sensor system comprising a plurality of wave receivers spaced apart from one another and each being structured and arranged to receive waves generated by, modified by, or reflected from a common object exterior of the vehicle; and

an impact responsive system coupled to said sensor system and actuated after the determination by said sensor system of an expected impact involving the vehicle and being arranged to attempt to reduce the potential harm resulting from the impact.

2. The vehicle of claim 1, wherein said impact responsive system comprises an occupant protection apparatus arranged to protect an occupant of the vehicle in the impact.

3. The vehicle of claim 1, wherein said impact responsive system comprises an inflatable airbag and an inflator for inflating said airbag after the determination by said sensor system of the expected impact involving the vehicle.

4. The vehicle of claim 3, wherein said airbag is arranged to deploy external to the vehicle at a location between the object and an expected point of impact of the object with the vehicle.

5. The vehicle of claim 1, wherein said sensor system further comprises a transmitter for transmitting waves receivable by said wave receivers after reflection from the object.

6. The vehicle of claim 5, wherein said plurality of wave receivers consists of two wave receivers.

7. The vehicle of claim 6, wherein said transmitter is arranged apart from said two wave receivers.

8. The vehicle of claim 5, wherein said transmitter is arranged to generate a visible or infrared laser beam and said wave receivers each comprise a charge coupled or CMOS device which receive reflected light.

9. The vehicle of claim 1, wherein said wave receivers are arranged on a side of the vehicle to sense a pending side impact.

10. The vehicle of claim 9, wherein said impact responsive system comprises an inflatable airbag arranged to inflate along the side of the vehicle and an inflator for inflating said airbag after the determination by said sensor system of the expected impact involving the vehicle.

11. The vehicle of claim 9, wherein said wave receivers are arranged in a B-pillar of the vehicle.

12. The vehicle of claim 1, wherein said wave receivers are arranged at a front of the vehicle to sense a pending frontal impact.

13. The vehicle of claim 1, wherein said sensor system further comprises circuitry coupled to said wave receivers to process signals from said wave receivers representative of the waves received by said wave receivers into an indication of the probable severity of an impact between the object and the vehicle.

14. The vehicle of claim 1, wherein said sensor system further comprises identifying and determining means for ascertaining the identity of the object based on a pattern of the received waves obtained over a period of time by said wave receivers and determining whether the identified object will cause an impact requiring actuation of said impact responsive system.

15. A vehicular system for reacting to an expected impact in order to attempt to reduce the potential harm resulting from the impact, comprising:

receiving means for receiving waves at a plurality of spaced apart locations generated by, modified by, or reflected from a common object exterior of the vehicle;

processing means coupled to said receiver means for processing signals from said receiving means representative of waves received by said receiving means into an indication of the probable severity of an expected impact between the object and the vehicle; and

an impact responsive system coupled to said processing means and actuated based on the probable severity of the expected impact and being arranged to attempt to reduce the potential harm resulting from the impact.

16. The system of claim 15, further comprising transmitter means for transmitting waves receivable by said receiving means after reflection from the object.

17. The system of claim 16, wherein said transmitter means are arranged to generate a visible or infrared laser beam and said receiving means comprise a plurality of charge coupled or CMOS devices which receive reflected light.

18. The system of claim 15, wherein said processing means are arranged to ascertain the identity of the object based on a pattern of the received waves obtained over a period of time by said receiving means and determine whether the identified object will cause an impact requiring actuation of said impact responsive system.

19. The system of claim 15, wherein said impact responsive system comprises an occupant protection apparatus arranged to protect an occupant of the vehicle in the impact.

20. The system of claim 15, wherein said impact responsive system comprises an inflatable airbag and an inflator for inflating said airbag based on the probable severity of the expected impact.

21. A method for reducing injury to a vehicular occupant in an impact involving the vehicle, comprising:

arranging a deployable protection apparatus on the vehicle;

arranging a plurality of wave receivers in spaced apart positions on the vehicle in which they are receivable of waves generated by, modified by, or reflected from a common object exterior of the vehicle;

receiving waves via the wave receivers;

determining whether an expected impact of the object with vehicle will require deployment of the protection apparatus based on the received waves; and

deploying the protection apparatus when the expected impact is determined to require such deployment.

22. The method of claim 21, further comprising transmitting waves outward from the vehicle and which are receivable by the wave receivers after reflection from the object.

23. The method of claim 21, wherein the wave receivers are arranged on a side of the vehicle to sense a side impact and the protection apparatus is an airbag arranged to inflate along the side of the vehicle.

24. The method of claim 21, wherein the wave receivers are arranged at a front of the vehicle to sense a frontal impact and the protection apparatus is an airbag arranged to inflate along the front of the vehicle.

25. The method of claim 21, wherein the protection apparatus is an airbag and deploying the protection apparatus comprises inflating the airbag.

26. The method of claim 25, wherein the airbag is arranged to deploy external to the vehicle at a location between the object and an expected point of impact of the object with the vehicle.