WO1997049572A1 - Dispositif de commande destine a l'ecoulement du carburant - Google Patents

Dispositif de commande destine a l'ecoulement du carburant Download PDF

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Publication number
WO1997049572A1
WO1997049572A1 PCT/US1997/008780 US9708780W WO9749572A1 WO 1997049572 A1 WO1997049572 A1 WO 1997049572A1 US 9708780 W US9708780 W US 9708780W WO 9749572 A1 WO9749572 A1 WO 9749572A1
Authority
WO
WIPO (PCT)
Prior art keywords
control device
fuel flow
axis
vehicle
roll
Prior art date
Application number
PCT/US1997/008780
Other languages
English (en)
Inventor
Peter Tancred Halasz
Harald Snorre Husby
Original Assignee
Breed Automotive Technology, Inc.
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
Priority claimed from US08/855,084 external-priority patent/US5797111A/en
Application filed by Breed Automotive Technology, Inc. filed Critical Breed Automotive Technology, Inc.
Publication of WO1997049572A1 publication Critical patent/WO1997049572A1/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
    • B60R21/013—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
    • B60R21/0132—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 vehicle motion parameters, e.g. to vehicle longitudinal or transversal deceleration or speed value
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/01—Arrangement of fuel conduits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K28/00—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions
    • B60K28/10—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the vehicle 
    • B60K28/14—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the vehicle  responsive to accident or emergency, e.g. deceleration, tilt of vehicle
    • 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
    • B60R2021/01306—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 monitoring vehicle inclination
    • 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
    • B60R21/0132—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 vehicle motion parameters, e.g. to vehicle longitudinal or transversal deceleration or speed value
    • B60R2021/01325—Vertical acceleration

Definitions

  • This invention relates to a control device to selectively actuate at least one fuel flow control device when a sudden change in acceleration, pitch angle or roll angle of a vehicle is detected.
  • Accelerometers that measure pitch and roll angles along a predetermined axis and produce signals representative of such measurements are well known in the art. Likewise, filtering, digitizing, formulating and analyzing the accelerometer signals to assess whether certain action should be taken is also known. These concepts have been disclosed in numerous patents in the fields of motor vehicle suspension control, motor vehicle body roll compensation, roll-over bar activation systems and seat belt pretensioner systems.
  • occupant restraint systems These systems commonly include a seat belt pretensioner assembly which is operable to move a seat belt assembly through a pretensioning stroke to remove slack from the seat belt during abrupt changes in an automobile's position.
  • a seat belt pretensioner assembly which is operable to move a seat belt assembly through a pretensioning stroke to remove slack from the seat belt during abrupt changes in an automobile's position.
  • the seat belt pretensioner is actuated to tightly restrain a vehicle occupant to minimize movement and prevent contact between the occupant and the automobile interior such as the roof, windshield, steering wheel, and side doors.
  • occupant safety devices employed in motor vehicles to be actuated upon the prediction of a roll-over or a pitch-over may include airbags, an automatic roll-over bar and automatic door locks .
  • US 5 012 162 teaches a suspension control apparatus that maintains a level attitude during cornering and turning by computing and map-retrieving from output signals of a vehicle speed sensor and output signals of a yaw angular velocity sensor for detecting angular velocity about a yaw axis of the vehicle .
  • US 5 471 388 discloses a method and apparatus for preventing vehicle handling instabilities, in which a vehicle yaw angular velocity actual value is determined from at least one sensor signal.
  • US 4 549 277 relates to a multiple sensor inclination measuring system which includes a plurality of single and dual axis inclination sensors, each sensor including a bridge circuit for generating a signal or pair of signals.
  • An analog-to-digital convertor converts the signal to a digital word having a binary value representative of the tilt of the sensor.
  • US 4 679 808 describes a system for estimating the state of a controlled vehicle's motion which has a steering wheel angle sensor, a vehicle speed sensor, a sensor for sensing a first motion variable such as a yaw rate, a sensor for sensing a second motion variable such as a yaw acceleration, and a processing unit such as a microcomputer.
  • US 5 161 816 teaches a suspension control apparatus for a vehicle.
  • the suspension control apparatus includes a roll angular velocity sensor for detecting angular velocity about a roll axis of the vehicle.
  • US 4 712 807 discloses a vehicle which has a sensor for each wheel for detecting load acting between the body and the wheel and a controller for for controlling actuators to increase or decrease forces provided thereby between the body and the wheels.
  • the acceleration sensor can include a means for sensing roll angle acceleration.
  • US 5 510 988 relates to a vehicle that has a real time suspension control which requires, as inputs, a set of absolute body modal velocity signals. Accurate estimates of these signals are derived from relative position sensors at the body suspension points.
  • US 5 510 986 describes a force actuator that is connected between a vehicle body and each vehicle wheel.
  • a position sensor senses displacement between the vehicle body and each vehicle wheel and provides a position signal indicative thereof.
  • An acceleration sensor senses vertical inertial acceleration of the vehicle body relative to ground at each vehicle wheel and provides an acceleration signal indicative of vertical inertial acceleration of the vehicle body at each vehicle wheel.
  • US 5 127 667 teaches a method wherein a pitching motion of a vehicle is monitored by computing and map retrieving from output signals of a vehicle speed sensor, a brake switch and a pitch angular velocity sensor for detecting angular velocity about a pitch axis of the vehicle; and pitching motion of the vehicle is restrained by the adjusting the damping force of shock absorbers.
  • US 5 328 256 relates to an anti-skid brake control device that has a control circuit to which signals from a steering angle sensor, a yaw detector, and respective wheel velocity sensors of a motor vehicle are inputted.
  • US 4 693 493, US 4 803 627 and US 4 807 128 disclose systems for vehicle roll control wherein an actuator assemblies is provided one for each of the vehicle wheels. Each of these actuator assemblies is adapted to increase or decrease the vehicle height at a location corresponding to its corresponding vehicle wheel as results of control signals being applied to it.
  • the actual roll angle of the vehicle body may be an input to the system.
  • US 5 094 478 teaches a convertible motor vehicle with two roll-over bars which can be swivelled from a lowered inoperative position to a supporting position.
  • US 5 458 396 discloses a convertible motor vehicle with at least one seat having an extendable roll bar incorporated into an upper portion thereof. Known motion sensors are used to trigger the roll bar and cause a release from its rest position to its operating position.
  • US 5 492 368 relates to a vehicle seat system for a vehicle including a resilient vehicle seat cushion; a lap restraint; a belt wrench tensionally associated with the lap restraint to tension the lap restraint to pull the seated occupant into the seat cushion; and a sensor to activate the belt wrench when the vehicle undergoes a displacement condition indicative of a vehicle rollover condition.
  • US 5 261 506 describes a control device for a passenger safety apparatus wherein the safety apparatus is triggered by a sensor arrangement which responds to a longitudinal and/or transverse acceleration of the motor vehicle. It is also independently t ⁇ ggerable by an additional state-of- motion or moving condition sensor which is configured to recognize a near weightless state of the vehicle.
  • a control device to deactivate a fuel flow control device in the event of a motor vehicle roll ⁇ over or pitch-over movement, and in the event of an impact to the vehicle exceeding a preset threshold velocity or acceleration.
  • Fig. 1 is a perspective view of a vehicle with the control device of the present invention.
  • Fig. 2 is a block diagram of the control device of the present invention.
  • Fig. 3 is a flow chart depicting the operation of the control device of the present invention.
  • the present invention relates to a control device 10 to selectively actuate a fluid flow control device such as a fuel pump cut-off switch or fuel line control valve to control fuel flow from the fuel tank 16 of a vehicle 18.
  • a fluid flow control device such as a fuel pump cut-off switch or fuel line control valve to control fuel flow from the fuel tank 16 of a vehicle 18.
  • the control device 10 comprises a sensor means 20 to sense a plurality of parameters including acceleration, pitch and roll angles of the vehicle 18 as defined hereinafter and to generate a corresponding plurality of signals representing each such parameter and a control means 22 comprising a control signal generator means including control logic circuitry to receive the plurality of signals and to generate a control signal corresponding to each such parameter when the corresponding signal exceeds a predetermined value and a safety device actuator signal generator means including actuator logic circuitry to receive the control signals and to generate a corresponding actuator signal to actuate the corresponding fuel flow control device.
  • an angle of inclination is defined as the rotation of an object with respect to the Earth's surface.
  • three single axis micromachined capacitive type accelerometers may be used for sensing these angles.
  • the pitch angle or inclination of the longitudinal center line of the vehicle 18 relative to the roadway is measured about the X-axis and the roll angle or inclination of the transverse center line of the vehicle 18 is measured about the Y-axis.
  • the control device 10 measures pitch and roll angles of inclination.
  • the control device 10 comprises a sensing means 20 and a control means 22.
  • the sensing means 20 comprises: first 24, second 26 and third 53 sensing elements; corresponding first 28, second 30, and third 52 filters; and a scaling amplifier 32.
  • the first sensing element 24 comprises an X-axis accelerometer 34 and a corresponding conditioning Application Specific Integrated Circuit (ASIC) 36.
  • the second sensing element 26 comprises a Y-axis accelerometer 38 and a corresponding conditioning ASIC 40.
  • the third sensing element 53 comprises a Z- axis accelerometer 50 and a corresponding conditioning ASIC 51.
  • the X-axis accelerometer 34, the Y-axis accelerometer 38 and the Z-axis accelerometer 50 generate analog signals corresponding to the angular inclination or disposition of the vehicle 18 relative to the roadway.
  • the conditioning ASICs 36, 40 and 51 calibrate the corresponding analog signals from the X- axis accelerometer 34, the Y-axis accelerometer 38 and the Z-axis accelerometer 50 in a ratio typically of 1 G to 1 volt.
  • a single package and t ⁇ axial accelerometer is equally suitable.
  • the first, second and third filters 28, 30 and 52 filter the corresponding analog signals from the first, second and third sensing elements 24, 26 and 53 respectively into a first, or low frequency, band width such as from about 0 Hz to about 40 Hz corresponding to, or representing, the angles of inclination to the X-axis and Y-axis relative to the roadway as indicators of the pitch and roll condition of the vehicle respectively.
  • the analog signals from the sensors are also filtered into a second, or high frequency, band width such as from about 0 Hz to about 2000 Hz corresponding to, or representing, acceleration indicative of an impact due to a collision.
  • the scaling amplifier 32 scales and amplifies the low and high frequency analog signals from both the first, second and third filter 28, 30 and 52 received from the sensing means 20 corresponding to the pitch and roll angles of inclination about the X-axis and Y-axis respectively, and corresponding to impact severity to the vehicle.
  • the control means 22 comprises a control signal generator means 42 including logic means to generate a pitch angle and a roll angle signal corresponding to the angle of inclination of the vehicle relative to the roadway about the X-axis and Y-axis respectively.
  • the control signal generator means 42 further includes logic circuitry to generate a control signal when either the pitch angle or the roll angle exceeds a predetermined value indicative of a pitch-over or roll-over condition by comparing the pitch angle or roll angle to predetermined values of pitch angle and roll angle.
  • the control signal generator means further comprises logic means to generate a control signal based on data contained in the acceleration signals such as G forces, frequency, velocity change, rates of acceleration and velocity changes, or other significant parameters contained in the signals.
  • the control signal generator generally will contain a microprocessor containing a predetermined program often referred to as an algorithm. The microprocessor issues commands to the actuator means to control the flow of fuel from the full tank.
  • the actuator signal generator means 44 includes logic means to generate an actuator signal to actuate the fuel pump cut-off switch 12, or fuel flow control valve 14, in response to the control signal from the control signal generator means 42.
  • the fuel pump cut-off switch 12, or fuel flow control valve 14, functions to stop the flow of fuel from the gas tank.
  • the control signal generator means 42 includes logic means to generate the first control signal when the G force sensed by the sensor means 20 exceeds a predetermined value such as about 3 G' s for a predetermined time such as about 20 milliseconds (MS) .
  • a predetermined value such as about 3 G' s for a predetermined time such as about 20 milliseconds (MS) .
  • MS milliseconds
  • the control device can predict an imminent roll or pitch over by comparing and evaluating the signals from the X-axis accelerometer, Y-axis accelerometer and Z-axis accelerometer will predict a rollover or pitch-over based on angles of inclination and rate of change of said angles, and based on such prediction will actuate a fuel flow control device. As shown in Figs. 2 and 3, the values of the
  • G-forces measured along the X-axis, Y-axis and Z-axis as well as the pitch and roll angles along the X-axis and Y-axis may be fed to an optional output data and/or event recording device (not shown) .
  • the control device 10 may further include a system reset means to clear faults and reset the control device 10 upon ignition switch activation.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

Ce dispositif de commande (10) actionne au moins un régulateur d'écoulement de carburant (12, 14) lorsqu'un véhicule (18) fait un accident ou un tonneau. Le dispositif de commande comporte au moins un étage de capteurs (20) détectant une pluralité de paramètres, y compris l'accélération, l'angle de tangage et l'angle de roulis d'un véhicule. Une pluralité correspondante de signaux représentant chacun de ces paramètres est générée. Le dispositif de commande comprend un étage de commande doté de circuits recevant la pluralité de signaux et générant un signal de commande correspondant à chacun de ces paramètres lorsque le signal correspondant dépasse une valeur prédéterminée. Un actionneur (44) de dispositif de sécurité comporte des circuits destinés à recevoir lesdits signaux de commande et à générer un signal d'actionnement correspondant pour actionner le régulateur d'écoulement de carburant.
PCT/US1997/008780 1996-06-24 1997-05-27 Dispositif de commande destine a l'ecoulement du carburant WO1997049572A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US67113096A 1996-06-24 1996-06-24
US671,130 1996-06-24
US855,084 1997-05-13
US08/855,084 US5797111A (en) 1996-06-24 1997-05-13 Fuel flow controller

Publications (1)

Publication Number Publication Date
WO1997049572A1 true WO1997049572A1 (fr) 1997-12-31

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ID=27100470

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/008780 WO1997049572A1 (fr) 1996-06-24 1997-05-27 Dispositif de commande destine a l'ecoulement du carburant

Country Status (1)

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WO (1) WO1997049572A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19841659A1 (de) * 1998-09-11 2000-03-16 Audi Ag Verfahren zur Steuerung einer Kraftstoffpumpe für ein Kraftfahrzeug
WO2015175879A1 (fr) * 2014-05-15 2015-11-19 Robert Bosch Gmbh Procédé et système de protection du moteur en cas de renversement, appel d'urgence et services de localisation

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0398307A1 (fr) * 1989-05-16 1990-11-22 Albert Busquets Busquets Système automatique intégral pour la protection et le secours des occupants d'automobiles engagées dans des accidents
EP0408033A1 (fr) * 1989-07-14 1991-01-16 Fuji Jukogyo Kabushiki Kaisha Système de sécurité en cas de renversement de véhicule à moteur
WO1995008457A1 (fr) * 1993-09-22 1995-03-30 Candido Justino Melo Neto Robinet de protection contre l'incendie et le vol de voitures
US5441026A (en) * 1993-11-18 1995-08-15 Fuji Jukogyo Kabushiki Kaisha Fuel pressure control system for high pressure fuel injection engine
US5481139A (en) * 1993-09-20 1996-01-02 Lucas; Daniel Safety circuit breaker for vehicles
GB2292126A (en) * 1994-08-11 1996-02-14 Rover Group Central acceleration measuring system for vehicles

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0398307A1 (fr) * 1989-05-16 1990-11-22 Albert Busquets Busquets Système automatique intégral pour la protection et le secours des occupants d'automobiles engagées dans des accidents
EP0408033A1 (fr) * 1989-07-14 1991-01-16 Fuji Jukogyo Kabushiki Kaisha Système de sécurité en cas de renversement de véhicule à moteur
US5481139A (en) * 1993-09-20 1996-01-02 Lucas; Daniel Safety circuit breaker for vehicles
WO1995008457A1 (fr) * 1993-09-22 1995-03-30 Candido Justino Melo Neto Robinet de protection contre l'incendie et le vol de voitures
US5441026A (en) * 1993-11-18 1995-08-15 Fuji Jukogyo Kabushiki Kaisha Fuel pressure control system for high pressure fuel injection engine
GB2292126A (en) * 1994-08-11 1996-02-14 Rover Group Central acceleration measuring system for vehicles

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19841659A1 (de) * 1998-09-11 2000-03-16 Audi Ag Verfahren zur Steuerung einer Kraftstoffpumpe für ein Kraftfahrzeug
DE19841659B4 (de) * 1998-09-11 2005-10-06 Audi Ag Verfahren zur Steuerung einer Kraftstoffpumpe für ein Kraftfahrzeug
WO2015175879A1 (fr) * 2014-05-15 2015-11-19 Robert Bosch Gmbh Procédé et système de protection du moteur en cas de renversement, appel d'urgence et services de localisation
CN106458128A (zh) * 2014-05-15 2017-02-22 罗伯特·博世有限公司 用于车辆翻转发动机保护、紧急呼叫和定位服务的方法和系统

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