WO1999003711A1 - Systeme informatique de retenue supplementaire en reponse au poids - Google Patents

Systeme informatique de retenue supplementaire en reponse au poids Download PDF

Info

Publication number
WO1999003711A1
WO1999003711A1 PCT/US1998/014184 US9814184W WO9903711A1 WO 1999003711 A1 WO1999003711 A1 WO 1999003711A1 US 9814184 W US9814184 W US 9814184W WO 9903711 A1 WO9903711 A1 WO 9903711A1
Authority
WO
WIPO (PCT)
Prior art keywords
air bag
restraint system
supplemental restraint
passenger
seat
Prior art date
Application number
PCT/US1998/014184
Other languages
English (en)
Inventor
Joseph A. Tabe
Original Assignee
Tabe Joseph A
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tabe Joseph A filed Critical Tabe Joseph A
Priority to AU83884/98A priority Critical patent/AU8388498A/en
Publication of WO1999003711A1 publication Critical patent/WO1999003711A1/fr
Priority to PCT/US1999/006666 priority patent/WO1999048729A1/fr
Priority to AU34539/99A priority patent/AU3453999A/en
Priority to AU37752/99A priority patent/AU3775299A/en
Priority to PCT/US1999/009435 priority patent/WO1999055560A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents 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
    • B60R21/01504—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents 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 detecting bag displacement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents 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
    • B60R21/01512—Passenger detection systems
    • B60R21/01516—Passenger detection systems using force or pressure sensing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents 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
    • B60R21/01512—Passenger detection systems
    • B60R21/01516—Passenger detection systems using force or pressure sensing means
    • B60R21/0152—Passenger detection systems using force or pressure sensing means using strain gauges
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01G—WEIGHING
    • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/40—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight
    • G01G19/413—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight using electromechanical or electronic computing means
    • G01G19/414—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight using electromechanical or electronic computing means using electronic computing means only
    • G01G19/4142—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight using electromechanical or electronic computing means using electronic computing means only for controlling activation of safety devices, e.g. airbag systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R2021/0002—Type of accident
    • B60R2021/0011—Rear collision or recoiling bounce after frontal collision
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
    • B60R21/263—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using a variable source, e.g. plural stage or controlled output
    • B60R2021/2633—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using a variable source, e.g. plural stage or controlled output with a plurality of inflation levels
    • B60R2021/2636—The volume of gas being continuously adjustable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
    • B60R21/0134—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to imminent contact with an obstacle, e.g. using radar systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents 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
    • B60R21/01512—Passenger detection systems
    • B60R21/01544—Passenger detection systems detecting seat belt parameters, e.g. length, tension or height-adjustment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
    • B60R21/264—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic

Definitions

  • the present invention relates generally to passenger vehicle supplemental restraint systems commonly known as air bags. More specifically, the present invention relates to a supplemental restraint system which is sensitive to a calculated passenger weight.
  • Air bags are primarily designed for the benefit of adult passengers. When children or infants are placed in the front passenger seat, deployment of an air bag could cause, and has caused, serious injury. Automobile manufacturers, realizing this hazard, have recommended that children and infants only ride in the rear passenger seats of automobiles.
  • the solution lies in adapting the supplemental restraint system to adjust deployment force to compensate for the presence of smaller passengers. It should be noted that, while less likely, smaller adults also may be injured by the deployment of an air bag.
  • a weight sensor in the seat determines if it is necessary to deploy an air bag. If an air bag is deployed, the weight sensor determines what level of protection is needed and a choice is made between deploying one or two canisters of propellant. First, the weight sensor is located in the seat itself, which inherently leads to inaccurate readings. Second, the level of response has only a handful of reaction levels, thus a passenger not corresponding to one of these levels may be injured due to improper correlation of deployment force used to inflate the air bag.
  • the present invention is designed to deploy an air bag intelligently through the use of weight sensors.
  • the applicant has recognized that there are two points of concern relative to air bag deployment, both centering around the concept that the force of air bag deployment can cause as much injury as an actual auto accident collision (without the protection of air bag).
  • the passenger ' s weight must be determined accurately.
  • air bag deployment must be controlled to apply an amount of force appropriate to protecting the passenger.
  • the present invention provides controlled air bag deployment with regard to the mass of the passenger.
  • a load cell underneath a passenger seat senses the weight of a passenger at regular intervals.
  • the load cell accurately determines passenger weight, as opposed to seat sensors embedded within the seat cushion which provide a '"passenger present" signal.
  • the present invention discloses a mechanism for providing controlled air bag deployment based on the mass of the passenger.
  • the mechanism variably controls the amount of gas in a combustion chamber which propels the air bag.
  • the air bag can deploy with as little or as much force as is appropriate based upon the passenger ' s weight.
  • Still another object of the invention is to prevent the deployment of an air bag when no passenger is present.
  • Yet another object of the invention is to provide a mechanism to detect the imminence of a rear impact and to timely deploy an air bag in response thereto. It is an object of the invention to provide improved elements and arrangements thereof in an apparatus for the purposes described which is inexpensive, dependable and fully effective in accomplishing its intended purposes.
  • Fig. 1 is side view of a passenger in a vehicle using the supplemental restraint system of the present invention.
  • Fig. 2. is a block diagram of the primary components of the supplemental restraint system of the present invention.
  • Fig. 3. is a circuit diagram of the components of the present invention.
  • the system generally includes the known standard configuration for a passenger's and driver's side frontal air bag. Each side is configured in the same manner, therefore only the passenger side air bag will be described.
  • the passenger seat (10) is mounted on a loadcell (15) which is embedded in the floor (100) of the vehicle.
  • the loadcell (15) ascertains the weight of the passenger seat (10) and any occupants ( 1 10) therein.
  • the present invention is more likely to obtain an accurate measurement of passenger weight, not being subject to faulty readings due to the nature and configuration of the cushioning (not shown) of the passenger seat (10) and passenger movement.
  • the loadcell (15) is constructed from machined steel having strain gauges (11) bonded inside.
  • the strain gauges (1 1) When weight is applied to the passenger seat (10), the strain gauges (1 1) are strained in a corresponding amount. As the strain gauges are stressed, the effective resistance thereacross varies in an amount corresponding to the strain. Voltage induced across each strain gauge is divided so that a voltage signal is obtained that corresponds to the weight of the passenger (1 10).
  • the loadcell (15) serves an initial and secondary purpose. Initially, a baseline is developed in conjunction with the loadcell (15) representing the weight of only the passenger seat (10). Once the initial baseline is ascertained, during operation of the vehicle, if the baseline amount is not exceeded by a set amount, the air bag (1,2) is disabled, thereby preventing the air bag (1,2) from being used when a passenger (1 10) is not present.
  • the loadcell (15) secondarily functions to accurately weigh a passenger (1 10) when the baseline representing the weight of the passenger seat (10) is exceeded. This information is then passed on to the automatic controller (25) which determines the proper force at which the air bag (1,2) should discharge based on the passenger weight.
  • an electrical signal from the loadcell (15) is amplified by amplifier (20). shown on Fig. 2, and sent to the automatic controller (25).
  • the automatic controller (25) discriminates between the passenger side and drivers side loadcells (15) to determine which air bag(s) (1,2) are to be enabled.
  • the electrical signal is next sent to encoder (30) which is an analog-to-digital converter.
  • the electrical signal up until such point, has been an analog voltage signal representative of the weight of the passenger (1 10).
  • the electrical signal is converted into a digital signal and transferred to meter decoder (35).
  • the meter decoder (35) analyzes the digital input and coverts it into a weight value corresponding to the weight of the passenger, which is then stored in memory (32).
  • a transient voltage suppressor (200) is located between the meter decoder (35) and the memory (32). Recognizing that electronic equipment characteristically suffers from transient voltage spikes, and that such spikes would cause abnormal readings for the memory (32), the applicant has positioned voltage suppressor (200) to filter out transient spike phenomenon. Thus, the accurate weight value is ensured.
  • the weight value is then passed on to an accelerometer (40).
  • the accelerometer (40) converts the weight value corresponding to the passenger (110) into an acceleration value corresponding to the proper amount of acceleration at which the air bag ( 1 ,2), as shown in Fig. 2, would have to be deployed to protect the passenger in the event of a collision. Because the readings from the loadcell (15) are dynamic, a new acceleration value is calculated each time a new signal is output from the loadcell (15).
  • the acceleration value is used by the accelerometer (40) to apply a proportional amount of force against crystals (45), shown in Fig. 3, in the accelerometer (40) to generate a corresponding amount of electrical energy therefrom, such as might occur with a piezoelectric solid.
  • the voltage developed across the crystals (45) is proportional to the amount of acceleration required to deploy the air bag (1,2) properly. This is accomplished by displacing a mass (52), shown on Fig. 3, inside the accelerometer (40). In short, this amounts to having the force exerted by the mass (52) on the crystals (45) proportional to the force exerted by the passenger ( 110) on the passenger seat (10).
  • the resultant voltage developed by the crystals (45) is correlated to the necessary force required to protect the passenger (1 10).
  • the voltage is used to generate a current to ignite gases (not shown) in a canister (60). shown on Fig. 3.
  • the current and the amount of gas (not shown) employed are controlled to provide the desired expansion rate of the air bag (1,2).
  • the controlled release of gas (not shown) from the canister (60) is accomplished by a sliding outlet port (not shown) which is opened a specific amount as a result of the voltage generated by the accelerometer (40).
  • a sliding outlet port not shown
  • the force of the deploying air bag ( 1 ,2) should correctly match the force of the passenger (1 10) in the passenger seat (10).
  • collision sensor (75) In a front impact of about 13.2 MPH, collision sensor (75) is activated.
  • the 13.2 MPH speed represents the threshold speed at which the efficacy of any air bag system should usually become activated.
  • air bags systems tend to become less effective and expensive to deploy. While the present invention can function even if a front impact is of extremely low speed, the preferred embodiment of the present invention would not engage until a front impact of 13.2 MPH is achieved. At that time the data stored in memory (32) is used as the proper force calibration and the air bag (1,2) is deployed at the proper level.
  • the weight of the passenger (110) is correlated into an expected impact force and the desired amount of propellant is ignited to provide a cushion which balances this force, but does not overpower the passenger (1 10) and force the passenger ( 1 10) backwards into the passenger seat (10) at such a rate as to cause injury.
  • an enhanced embodiment of the present invention includes a radar unit (70) which is used to sense the imminence of a rear impact. This data is received by radar receiver (71) and fed into the automatic controller (25) which will immediately cause the deployment the air bag (1,2) with the proper force as discussed above. Radar unit (70) and radar receiver (71) are not shown in Figure 3 (which illustrates the primary embodiment of the present invention).
  • the air bag (1,2) has two layers (not shown) to further minimize the impact of deployment.
  • An internal layer (not shown) is the base of the air bag (1,2) itself, which is deployed according to the system described above.
  • An external layer (not shown) is a cushion layer characterized by being extremely foamy.
  • the weight of the passenger (110) is correlated into an expected impact force and the desired amount of propellant is ignited to provide a cushion which balances this force, but does not overpower the passenger (110) and force the passenger (110) backwards into the passenger seat (10) at such a rate as to cause injury.
  • the greater the amount of propellant. the smaller the distance between the two air bag layers upon deployment.
  • the two layer air bag (1 ,2) serves to further prevent air bag deployment injuries.
  • Another embodiment of the present invention includes several conventional sensors (not shown) positioned on the seat belt (not shown) of the passenger (1 10) and on the air bag itself.
  • the sensors (not shown) communicate so that the deployment direction of the air bag (1,2) can be minimized away from the head of the passenger (110), so as to further prevent injury.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Air Bags (AREA)

Abstract

L'invention concerne un système de retenue supplémentaire de passager dans lequel le poids d'une personne transportée (110) est déterminé avec précision et utilisé pour générer une force de déploiement d'airbag suffisante pour éviter une blessure suite à une collision, mais ne blessant pas le passager du fait du déploiement. Une cellule de pesage (15) est montée entre un siège de passager (10) et le plancher du véhicule (100) pour détecter le poids de la personne transportée (110).
PCT/US1998/014184 1997-07-14 1998-07-13 Systeme informatique de retenue supplementaire en reponse au poids WO1999003711A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AU83884/98A AU8388498A (en) 1997-07-14 1998-07-13 Weight responsive supplemental restraint computer system
PCT/US1999/006666 WO1999048729A1 (fr) 1998-03-26 1999-03-26 Systeme informatique de maintien supplementaire ameliore agissant en reponse au poids
AU34539/99A AU3453999A (en) 1998-03-26 1999-03-26 Advanced weight responsive supplemental restraint computer system
AU37752/99A AU3775299A (en) 1998-04-27 1999-04-27 Smart seatbelt control system
PCT/US1999/009435 WO1999055560A1 (fr) 1998-04-27 1999-04-27 Systeme de commande intelligente pour ceinture de securite

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US5243597P 1997-07-14 1997-07-14
US60/052,435 1997-07-14
US95350397A 1997-10-17 1997-10-17
US08/953,503 1997-10-17

Publications (1)

Publication Number Publication Date
WO1999003711A1 true WO1999003711A1 (fr) 1999-01-28

Family

ID=26730597

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/014184 WO1999003711A1 (fr) 1997-07-14 1998-07-13 Systeme informatique de retenue supplementaire en reponse au poids

Country Status (2)

Country Link
AU (1) AU8388498A (fr)
WO (1) WO1999003711A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19925662A1 (de) * 1999-06-04 2000-12-07 Volkswagen Ag Vorrichtung zur Gewichts- und/oder Sitzpositionsbestimmung eines Fahrzeuginsassen
EP1031475A3 (fr) * 1999-02-26 2002-01-23 Breed Automotive Technology, Inc. Système de protection en cas de choc arrière
WO2002043992A1 (fr) * 2000-11-30 2002-06-06 Robert Bosch Gmbh Procede de declenchement de moyens de retenue dans un vehicule
EP1410977A2 (fr) * 2002-10-19 2004-04-21 General Motors Corporation Méthode et système pour arriver à une décélération sous impact en moyenne constante indépendante de la force sur le véhicule

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3861710A (en) * 1971-11-22 1975-01-21 Fujitsu Ten Ltd Vehicle safety system
DE3809074A1 (de) * 1988-03-18 1989-10-05 Audi Ag Sicherheitssystem fuer kraftfahrzeuge unter einbeziehung eines aufblasbaren aufprallschutzkissens
US5232243A (en) * 1991-04-09 1993-08-03 Trw Vehicle Safety Systems Inc. Occupant sensing apparatus
US5413378A (en) * 1993-12-02 1995-05-09 Trw Vehicle Safety Systems Inc. Method and apparatus for controlling an actuatable restraining device in response to discrete control zones
US5707078A (en) * 1996-11-26 1998-01-13 Takata, Inc. Air bag module with adjustable cushion inflation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3861710A (en) * 1971-11-22 1975-01-21 Fujitsu Ten Ltd Vehicle safety system
DE3809074A1 (de) * 1988-03-18 1989-10-05 Audi Ag Sicherheitssystem fuer kraftfahrzeuge unter einbeziehung eines aufblasbaren aufprallschutzkissens
US5232243A (en) * 1991-04-09 1993-08-03 Trw Vehicle Safety Systems Inc. Occupant sensing apparatus
US5413378A (en) * 1993-12-02 1995-05-09 Trw Vehicle Safety Systems Inc. Method and apparatus for controlling an actuatable restraining device in response to discrete control zones
US5707078A (en) * 1996-11-26 1998-01-13 Takata, Inc. Air bag module with adjustable cushion inflation

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1031475A3 (fr) * 1999-02-26 2002-01-23 Breed Automotive Technology, Inc. Système de protection en cas de choc arrière
DE19925662A1 (de) * 1999-06-04 2000-12-07 Volkswagen Ag Vorrichtung zur Gewichts- und/oder Sitzpositionsbestimmung eines Fahrzeuginsassen
EP1061347A2 (fr) * 1999-06-04 2000-12-20 Volkswagen Aktiengesellschaft Dispositif de détermination du poids et/ou de la position d'un occupant de véhicule
EP1061347A3 (fr) * 1999-06-04 2001-10-31 Volkswagen Aktiengesellschaft Dispositif de détermination du poids et/ou de la position d'un occupant de véhicule
DE19925662B4 (de) * 1999-06-04 2006-06-14 Volkswagen Ag Vorrichtung zur Gewichts- und/oder Sitzpositionsbestimmung eines Fahrzeuginsassen
WO2002043992A1 (fr) * 2000-11-30 2002-06-06 Robert Bosch Gmbh Procede de declenchement de moyens de retenue dans un vehicule
US7140637B2 (en) 2000-11-30 2006-11-28 Robert Bosch Gmbh Method for triggering restraining means in a motor vehicle
EP1410977A2 (fr) * 2002-10-19 2004-04-21 General Motors Corporation Méthode et système pour arriver à une décélération sous impact en moyenne constante indépendante de la force sur le véhicule
EP1410977A3 (fr) * 2002-10-19 2004-10-13 General Motors Corporation Méthode et système pour arriver à une décélération sous impact en moyenne constante indépendante de la force sur le véhicule
US6879897B2 (en) 2002-10-19 2005-04-12 General Motors Corporation Method and system for achieving constant average impact deceleration independent of vehicle load

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