Tilt, Imbalance, Or Overload Patents (Class 340/440)
  • Patent number: 7011177
    Abstract: To enable restart of an engine by detecting that a vehicle is restored to the upright position after overturning in an early state. An acceleration sensor having a detection axis laid laterally of a vehicle body is integrated into an ECU and mounted on the vehicle body. Outputs of the acceleration sensor are weighted and averaged, and when an average value exceeds an overturn threshold repeatedly, an overturn determination unit determines that the vehicle is overturned. On the other hand, when outputs of the acceleration sensor are determined to be below a restoration threshold, and the determination is repeatedly made, it is determined that the vehicle is restored from the overturned state. The engine is stopped when determination of overturn is made, while restart of the engine is enabled when determination of restoration is made. Especially, the reference value of determination is set so that determination of restoration is made at an early stage.
    Type: Grant
    Filed: July 28, 2003
    Date of Patent: March 14, 2006
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Kenichi Machida, Katsuhiro Ouchi
  • Patent number: 7003389
    Abstract: A control system (18) for an automotive vehicle (10) having a safety system includes a controller (26) determining a first body to road angle; determining a second body to road angle; determining a final body to road angle from the first body to road angle and the second body to road angle; and controlling the safety system in response to the final body to road signal.
    Type: Grant
    Filed: June 30, 2003
    Date of Patent: February 21, 2006
    Assignee: Ford Global Technologies, LLC
    Inventors: Jianbo Lu, Todd Allen Brown
  • Patent number: 6978200
    Abstract: An activation device for a passenger protection apparatus is made up of a sensor for detecting a roll angular velocity of a vehicle, a unit for calculating a roll relative angle on the basis of the roll angular velocity, and a unit for making a judgment indicating a roll of the vehicle when the velocity and the angle satisfy a threshold condition. A control unit activates an air bag when making a judgment indicating a roll. A vehicle collision state is discriminated on the basis of right-hand and left-hand accelerations detected by acceleration sensors and the threshold condition for the judgment on a roll of the vehicle is switched in accordance with the collision state. This enables a trip-over type roll to be detected at an early stage for activating the passenger protection apparatus quickly.
    Type: Grant
    Filed: May 23, 2003
    Date of Patent: December 20, 2005
    Assignee: Denso Corporation
    Inventors: Seiya Ide, Yoshihisa Ogata
  • Patent number: 6948359
    Abstract: For a wheel-related monitoring of the air pressure according to the invention, a tire pressure monitoring system is provided for a vehicle which in each case comprises an air pressure sensor, one for each vehicle wheel, which is connected to a control unit with an optical and/or acoustic output unit, wherein the air pressure sensor is associated with the respective vehicle wheel in such a way that a measuring value produced by the air pressure sensor together with a wheel-related coding (C) is transmitted to the control unit.
    Type: Grant
    Filed: April 16, 2003
    Date of Patent: September 27, 2005
    Assignee: General Motors Corporation
    Inventor: Roland Proschka
  • Patent number: 6941801
    Abstract: A method is provided for replacing at least one tire of a vehicle on a first wheel in a first wheel position, the vehicle having a tire pressure monitoring system with a first sensor unit having a first ID code mounted to the first wheel. The first sensor unit is interrogated. Either a nominal result or a faulted result of the interrogation is detected. The at least one tire is removed from the first wheel. If the nominal result is detected during the interrogating step, then the first sensor unit is re-interrogated. Either a nominal result or a faulted result of the re-interrogation is detected. If either of the interrogation or the re-interrogation provide a faulted result then the first ID code is cloned into a replacement sensor unit and then the replacement sensor unit is swapped for the first sensor unit on the first wheel. A new tire is installed onto the first wheel. The first wheel is installed onto the vehicle in the first wheel position.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: September 13, 2005
    Assignee: Lear Corporation
    Inventors: Thomas J. Lemense, John S. Nantz, Kenneth J. Cunningham, Qingfeng Tang
  • Patent number: 6941206
    Abstract: A vehicle includes a tip over detection device that uses a vertically oriented sensor to improve the accuracy of detecting when the vehicle has tipped over. An ECU communicates with the accelerometer and controls engine operation. The ECU stops the engine, preferably gradually, when the vehicle has tipped over. The sensor can also detect lean in additional directions that are orthogonal to the vertical direction.
    Type: Grant
    Filed: October 21, 2002
    Date of Patent: September 6, 2005
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Takahiko Hasegawa, Masashi Kataoka
  • Patent number: 6921100
    Abstract: The present invention relates to a system for adjusting weight distribution throughout all axle groups of the truck and trailer. The trailer has at least one axle group mounted on a pair of rails attached to the frame of the trailer. These axle groups are locked in position on the rails by locking pins. The system for adjusting weight distribution according to the present invention measures the weight on every axle group on the truck and trailer. The measurement may be of weight directly by load cells etc. or indirectly, by taking measurements from the air suspension system to calculate weight. The measurements are delivered as an electrical signal to one or more microprocessors capable of receiving the electrical signals and calculating the optimum position of the axle group on the trailer. The position of the trailer axle groups relative to the rails is also determined and the position delivered to the microprocessor(s).
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: July 26, 2005
    Assignee: Wheel Monitor Inc.
    Inventors: John Mantini, Dimitre Iankoulov
  • Patent number: 6915193
    Abstract: A control system (24) for controlling a safety system (40) of an automotive vehicle includes a plurality of wheel speed sensors (30) generating a plurality of wheel velocity signals, a steering angle sensor (39) generating a steering actuator angle signal, a yaw rate sensor (28) generating a yaw rate signal, a longitudinal acceleration sensor (32) generating a longitudinal acceleration signal and a pitch angle generator generating a pitch angle signal and a controller (26). The controller (26) generates a longitudinal vehicle velocity in response to the plurality of wheel speed signals, the steering angle signal, the yaw rate signal, the lateral acceleration signal and the pitch rate signal. The controller (26) may determine a slip-related longitudinal velocity and a non-slip longitudinal velocity as intermediate steps.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: July 5, 2005
    Assignee: Ford Global Technologies, LLC
    Inventors: Jianbo Lu, Todd Allen Brown
  • Patent number: 6907776
    Abstract: The present invention comprises a system for the detection of a pressure drop in a tire. Herein an evaluating unit determines the temporal modification of the temperature in the tire and produces an alerting signal if the temporal modification of the temperature falls short of a predetermined temperature modification threshold value. In presence of an evaluating signal, the evaluating unit determines the temporal modification of the air pressure and produces an alerting signal, if the temporal modification of the air pressure exceeds an air pressure modification threshold value.
    Type: Grant
    Filed: September 9, 2002
    Date of Patent: June 21, 2005
    Assignee: Siemens Aktiengesellschaft
    Inventors: Martin Fischer, Dominik Fuessel, Franz Hillenmayer
  • Patent number: 6906623
    Abstract: A method and apparatus for registering travel data of a motor vehicle with an electronically actuated drive train, utilizing a sensor device for determining actual vehicle data which relates to the travel dynamics, a time-registration device for generating time data, a position-determining device for determining position data of a motor vehicle, and a storage device for at least temporarily storing the actual vehicle, time and position data. The storage device is coupled to operator control elements for the driver-end generation of activation signals for influencing the drive train, and an actuation device for the activation-signal-dependent generation of actuation signals for the drive train. The storage device is designed to store at least temporarily the activation signals and the actuation signals.
    Type: Grant
    Filed: August 29, 2001
    Date of Patent: June 14, 2005
    Assignee: DaimlerChrysler AG
    Inventors: Wolf-Dietrich Bauer, Christian Mayer, Andreas Schwarzhaupt, Gernot Spiegelberg
  • Patent number: 6873897
    Abstract: A method of stabilizing a vehicle involving the following steps is described: recording characteristic actual values that describe the driving condition of a vehicle; determining setpoint values that are at least partially assigned to the actual values; comparing actual values and setpoint values and influencing actual values based on comparison results, one of the recorded actual values being characteristic of the roll state of the vehicle, and one of the setpoint values being assigned to the recorded actual value that is characteristic of the roll state of the vehicle. A device for stabilizing a vehicle is also described.
    Type: Grant
    Filed: November 23, 2001
    Date of Patent: March 29, 2005
    Assignee: Robert Bosch GmbH
    Inventors: Ian Faye, Klaus-Dieter Leimbach
  • Patent number: 6873253
    Abstract: An autonomous device for warning drivers of automobiles of excessive speed of turning around a curve. The device is compact with both the sensing means and alarm audio and/or visual signal producing means. The sensing means comprises two, alternatively activated and differentially calibrated by means of a proposed calibration device, pair of mercury switches, each pair comprising two oppositely inclined mercury switches for monitoring right and left turns of the vehicle, wherein the first pair is adapted for use in conditions of dry road surface by calibration at a predetermined value of inclination and a second pair is adapted for use in conditions of wet road surface by calibration at a different predetermined value of inclination.
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: March 29, 2005
    Inventor: Spyros Veziris
  • Patent number: 6861949
    Abstract: A device and method used to indicate vehicle inclination and conditions indicative of a potential rollover is disclosed. The device and method may be embodied in original equipment or in an aftermarket product in a manner so that the driver may easily determine the vehicle inclination. For example, the device and method may be embodied in a mirror assembly mounted in the vehicle. The device and method may also be used to detect the rate of change of inclination to provide a warning of adverse driving conditions. The device and method may also include a compass that indicates a corrected heading of the vehicle.
    Type: Grant
    Filed: August 23, 2002
    Date of Patent: March 1, 2005
    Inventors: Craig D. Carlson, Michael A. Reed, J. Thomas Fowler
  • Patent number: 6859713
    Abstract: The invention proposes a method for regulating a stability control system of a vehicle based on the forces acting at the center of each wheel of the vehicle. The actions of the driver, i.e. steering, acceleration or braking, produce forces (changes in forces) are transmitted by the tires to the ground. Control of the operating means of the vehicle (active anti-roll device, engine torque, braking torque, load per wheel or direction) utilizes instructions resulting from the actions of the driver to apply forces. The invention proposes a method of expressing, in terms of forces, the inputs of the driver as a function of the inertia of the vehicle body, velocity of forward movement of the vehicle, and angle at the steering wheel (steering wheel velocity and steering wheel acceleration). If the actual forces that are measured do not correspond to the forces desired by the driver, the active system compensates for this difference by acting on the force distributions in the chassis.
    Type: Grant
    Filed: October 17, 2002
    Date of Patent: February 22, 2005
    Assignee: Michelin Recherche et Technique
    Inventor: Patrick Pallot
  • Patent number: 6856868
    Abstract: A rollover detection system (12) for an automotive vehicle (10) includes a controller (14) that is hooked to various types of sensors. The sensors may include a lateral acceleration sensor and another sensor or combination of sensors that gives an indication to another lateral condition of the vehicle. The controller determines a roll condition in response to comparing the lateral acceleration and the lateral condition other than lateral acceleration to a threshold. When the conditions are above the threshold then a roll condition is indicated. When a roll condition is indicated a safety device (40) may be controlled to prevent rollover and/or deploy a safety device.
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: February 15, 2005
    Assignee: Ford Global Technologies, LLC
    Inventors: Jialiang Le, David James Bauch, Kirsten Marie Carr, Fubang Wu, Clifford C. Chou
  • Patent number: 6847290
    Abstract: Tension alert device is used with a load secured to a vehicle load bed, which has a securing belt having a connector portion and an attachment link. The device includes a connector sleeve, with an axial bore and a sleeve end portion, which is connected to the link. A first contacter connects to an inner end portion of the sleeve and faces into the axial bore. A second contacter slides in the bore along a restricted path of travel and has a second load bed connector. The second contacter faces the first contacter and is urged away from it when the belt has a first tension threshold value. The first contacter has an electrical signal generator for producing an electrical signal, which is activated when the second contacter is biased against it when the belt attains a second threshold tension value.
    Type: Grant
    Filed: March 14, 2003
    Date of Patent: January 25, 2005
    Inventor: Maurice Tardif
  • Patent number: 6842118
    Abstract: An overload detection device for a high-lift work vehicle is capable of detecting the load on the work platform. A base 10 of the work platform is supported with a bracket 9 at, at least, three supporting portions. Load sensors 11 each constituted of a plate member 14 and distortion gauges 15˜18 detect the extent of flexure of at least two of the supporting portions.
    Type: Grant
    Filed: April 25, 2002
    Date of Patent: January 11, 2005
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Teruo Igarashi, Atsushi Tadokoro
  • Patent number: 6838979
    Abstract: This invention provides a system to detect in real time the condition of jackknifing tendency during vehicle-trailer backing up, and to provide steering direction assistance. The system utilizes rates of change of a vehicle-trailer articulation angle to determine a critical articulation angle.
    Type: Grant
    Filed: May 9, 2003
    Date of Patent: January 4, 2005
    Assignee: General Motors Corporation
    Inventors: Weiwen Deng, Yong H. Lee, Yuen-Kwok Chin
  • Publication number: 20040267428
    Abstract: A vehicle dynamics control system for a motor vehicle having an active normal force adjustment system with which the normal force acting on a wheel may be adjusted is described. For coordinating the vehicle dynamics control system with the active normal force adjustment system, information about a change in the normal force is to be supplied to a control unit of the vehicle dynamics control system and may be taken into account in the vehicle dynamic control.
    Type: Application
    Filed: June 25, 2004
    Publication date: December 30, 2004
    Inventors: Michael Knoop, Martin Kieren, Andreas Schumann
  • Publication number: 20040254707
    Abstract: A control system (18) for an automotive vehicle (10) has a roll angular rate sensor (34) and a lateral accelerometer (32) that are used to determine the body roll angle of the vehicle when a rollover event has been sensed. A rollover event sensor (27) may be implemented physically or in combination with various types of suspension, load or other types of lifting determinations.
    Type: Application
    Filed: June 11, 2003
    Publication date: December 16, 2004
    Inventors: Jianbo Lu, Keith Glenn Mattson, Todd Allen Brown
  • Publication number: 20040254710
    Abstract: There is provided a method for detecting the possibility of rollover of a vehicle, including the steps of: detecting an actual roll angular velocity of the vehicle; obtaining an actual roll angle of the vehicle; determining an actual lateral acceleration of the vehicle; providing a two-dimensional map correlating values of the roll angular velocity with values of the roll angle to define a rollover judgment threshold; changing the threshold based on the actual roll angle and the actual lateral acceleration; forming a plot of the actual roll angular velocity versus the actual roll angle on the two-dimensional map; and judging that there is a possibility that the vehicle rolls over when the plot exceeds the threshold.
    Type: Application
    Filed: May 6, 2004
    Publication date: December 16, 2004
    Applicant: NISSAN MOTOR CO., LTD.
    Inventor: Ryuji Yano
  • Patent number: 6827172
    Abstract: A passenger-protecting device such as an air-bag system is activated upon detection of a vehicle lateral inclination angle exceeding a predetermined critical level. Such detection is performed by a lateral inclination detector having a pair of gravitational acceleration sensors for detecting a static road inclination and an angular velocity sensor for detecting a dynamic roll angle of the vehicle. Sensing directions of the pair of gravitational acceleration sensors are positioned to cross each other with a right angle and to make an angle of 45° with respect to a vehicle floor. The dynamic roll angle is calculated by integrating outputs of the angular velocity sensor. The vehicle inclination angle is obtained to summing up the static inclination angle and the roll angle. The passenger-protecting device is timely activated to protect passengers from overturn impact of the vehicle.
    Type: Grant
    Filed: November 22, 2002
    Date of Patent: December 7, 2004
    Assignee: Denso Corporation
    Inventors: Seiya Ide, Mutsumasa Koujiya, Yoshihisa Ogata
  • Patent number: 6826468
    Abstract: A method and system for classifying vehicle conditions. Lateral acceleration information, vertical acceleration information, and roll angle information is acquired and the roll angle information is used for compensating the acceleration information for the effects of gravity. The compensated acceleration information is compared with one or more thresholds to change calibrateable counter values and additional threshold comparisons are used to determine the vehicle condition or rollover type.
    Type: Grant
    Filed: March 3, 2003
    Date of Patent: November 30, 2004
    Assignee: Robert Bosch Corporation
    Inventor: Kyle W. Williams
  • Publication number: 20040199317
    Abstract: An apparatus for detecting a rollover of a vehicle is provided. The apparatus comprises a detector, memory unit, calculator, and rollover determination unit. The detector detects a roll angular velocity of the vehicle. The memory unit memorizes a value of the roll angular velocity detected by the detector. The calculator calculates a predictive value to the roll angular velocity to be expected when a predetermined period of time elapses, by using a past value of the roll angular velocity of the vehicle, the past value being memorized in the memory unit. The rollover determination unit determines whether or not there is a possibility that the vehicle will make a rollover, on the basis of the predictive value to the roll angular velocity.
    Type: Application
    Filed: February 24, 2004
    Publication date: October 7, 2004
    Inventors: Yoshihisa Ogata, Seiya Ide
  • Publication number: 20040199314
    Abstract: A stability control system (24) for an automotive vehicle as includes a plurality of sensors (28-37) sensing the dynamic conditions of the vehicle and a controller (26) that controls a distributed brake pressure to reduce a tire moment so the net moment of the vehicle is counter to the roll direction. The sensors include a speed sensor (30), a lateral acceleration sensor (32), a roll rate sensor (34), and a yaw rate sensor (20). The controller (26) is coupled to the speed sensor (30), the lateral acceleration sensor (32), the roll rate sensor (34), the yaw rate sensor (28). The controller (26) determines a roll angle estimate in response to lateral acceleration, roll rate, vehicle speed, and yaw rate. The controller (26) changes a tire force vector using brake pressure distribution in response to the relative roll angle estimate.
    Type: Application
    Filed: April 19, 2004
    Publication date: October 7, 2004
    Applicant: Ford Global Technologies, LLC
    Inventors: Joseph Carr Meyers, Todd Allen Brown
  • Publication number: 20040193352
    Abstract: This control device for a vehicle obtain a cant amount CANT by subtracting, from a detected actual lateral acceleration Gy, an estimated lateral acceleration Gyest corresponding to centrifugal force due to a turning run, calculated based upon the difference between the wheel speed at the left side of the vehicle body and the wheel speed at the right side of the vehicle body, by utilizing the fact that a lateral acceleration sensor 54 that detects the detected actual lateral acceleration Gy according to a component of external force (centrifugal force, gravity or the like) exerted on the vehicle detects, as the detected actual lateral acceleration Gy, the acceleration whose absolute value is greater than the absolute value of the actual lateral acceleration (≠0) actually exerted on the vehicle (based upon the centrifugal force due to the turning run), that is running approximately straight, by the amount according to the cant amount CANT in the body roll direction of the road surface.
    Type: Application
    Filed: March 31, 2004
    Publication date: September 30, 2004
    Inventors: Sentaro Ito, Tetsuya Tokuda, Toshihisa Kato
  • Patent number: 6796397
    Abstract: A method for activating a passenger safety application in a vehicle involves a rotational acceleration sensor device which is used to obtain a measurement of the rotational acceleration &agr;x of the vehicle, e.g., about an axis of rotation x parallel to the longitudinal axis of the vehicle. The results of this measurement are analyzed by a computing unit for evaluating the vehicle situation with respect to its surrounding. Activation of a suitable safety application is performed in the event that the analysis indicates that a rollover event of the vehicle is imminent.
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: September 28, 2004
    Assignee: Robert Bosch GmbH
    Inventors: Robert Lahmann, Michael Roelleke, Bernhard Mattes
  • Publication number: 20040176897
    Abstract: A method and system for classifying vehicle conditions. Lateral acceleration information, vertical acceleration information, and roll angle information is acquired and the roll angle information is used for compensating the acceleration information for the effects of gravity. The compensated acceleration information is compared with one or more thresholds to change calibrate able counter values and additional threshold comparisons are used to determine the vehicle condition or rollover type.
    Type: Application
    Filed: March 3, 2003
    Publication date: September 9, 2004
    Inventor: Kyle W. Williams
  • Publication number: 20040176893
    Abstract: An apparatus includes a roll condition detector detecting a roll condition of a vehicle and a lateral acceleration sensor sensing a lateral acceleration of the vehicle. The apparatus also includes a trip-over determination unit determining whether an anticipated rollover of the vehicle has a pattern of trip-over in response to the lateral acceleration and the roll condition of the vehicle, and a trip-over pattern recognition unit recognizing the pattern of trip-over based on the lateral acceleration of the vehicle. The apparatus further includes a rollover determination criteria unit setting a rollover determination criterion depending on the pattern of trip-over, a rollover determination unit determining whether the vehicle will roll over based on the roll condition of the vehicle and the rollover determination criterion, and an activation unit activating occupant restraint devices of the vehicle depending on a result of the rollover determination unit which indicates the vehicle will roll over.
    Type: Application
    Filed: March 2, 2004
    Publication date: September 9, 2004
    Applicant: DENSO CORPORATION
    Inventors: Yoshihisa Ogata, Seiya Ide
  • Patent number: 6789002
    Abstract: The invention provides a method, a computer usable medium including a program, and a system for determining a vehicle payload condition. The method and computer usable medium include the steps of determining a first payload-state parameter, a second payload-state parameter, and at least one roll value. A first differential is determined based on the first payload-state parameter and the second payload-state parameter. A second differential is determined based on the first payload-state parameter and the roll value. A multiplier is determined. A payload estimate is determined based on the first payload differential, the second payload differential, and the multiplier. The system includes means for achieving the method steps of the invention.
    Type: Grant
    Filed: May 19, 2003
    Date of Patent: September 7, 2004
    Assignee: Delphi Technologies, Inc.
    Inventors: Aleksander B. Hac, John D. Martens
  • Patent number: 6784793
    Abstract: A vibration monitor is mounted on a vehicle for monitoring vibrations in the axles and wheels of the vehicle which may indicate some type of failure associated with the wheels. The monitor includes sensors mounted on the axles which are connected to a control box for disabling the vehicle in response to receipt of a vibration signal from the sensors. The control box is arranged to vent the air brake circuit of the truck for applying the brakes of the truck if the control box receives a vibration signal from the sensors having a magnitude which exceeds an acceleration threshold and a duration which exceeds a time threshold determined by the control box. In one embodiment, electrical acceleration sensors are provided which transmit the vibration signals to the control box using an intermittent RF signal having a unique identification signal for indicating which sensor has recorded each vibration signal.
    Type: Grant
    Filed: June 3, 2002
    Date of Patent: August 31, 2004
    Inventor: Allain Gagnon
  • Patent number: 6782315
    Abstract: A control system (18) for an automotive vehicle (10) having a vehicle body includes a sensor system (16) having housing (52) oriented within the vehicle body. Positioned within the housing (52) are a roll angular rate sensor (31), a yaw angular rate sensor (30), a pitch angular rate sensor (32), a lateral acceleration sensor (27), a longitudinal acceleration sensor (28), and a vertical acceleration sensor (29). The vehicle (10) also has a safety system (38). The controller (26) determines a roll misalignment angle, a pitch misalignment angle and a yaw misalignment angle as a function of the sensor outputs of the roll rate, the pitch rate, the yaw rate, the lateral acceleration, the longitudinal acceleration and the vertical acceleration.
    Type: Grant
    Filed: June 19, 2002
    Date of Patent: August 24, 2004
    Assignee: Ford Global Technologies, LLC
    Inventors: Jianbo Lu, Todd Allen Brown
  • Publication number: 20040158381
    Abstract: A roll control system is provided for controlling a roll position of a boom rotatably coupled to a support frame, the boom comprising left and right wing sections (where the roll of the boom refers to a clockwise or counterclockwise rotation of said boom relative to the support frame). A roll control mechanism is configured for rotating the boom relative to the support frame in response to a roll control signal. Wing section position measuring apparatus is configured for producing a right wing signal correlatable to a distance between the right wing section and a right wing reference position and a left wing signal correlatable to a distance between the left wing section and a left wing reference position. Boom roll position measuring apparatus is configured for producing a boom roll signal correlatable to a roll position of the boom relative to a boom roll reference position.
    Type: Application
    Filed: February 10, 2003
    Publication date: August 12, 2004
    Inventors: William Strelioff, Dean Hockley, Gordon Lee
  • Publication number: 20040158380
    Abstract: A process for monitoring load conditions on a lifting machine having a rated load moment includes determining an actual load moment of the lifting machine due a weighted load. The actual load moment may be determined by measuring a tilt pressure within a hydraulic tilt cylinder of the lifting machine, and then calculating the actual load moment from the tilt pressure within the hydraulic tilt cylinder. The location of a center of gravity of the weighted load is also determined by measuring a lift pressure within a hydraulic lift cylinder of the lifting machine, and then calculating the weight of the weighted load from the lift pressure. Once the weight is determined, the location of the center of gravity of the weighted load may be found using the actual load moment and the calculated weight.
    Type: Application
    Filed: February 7, 2003
    Publication date: August 12, 2004
    Inventors: Bruce W. Farber, Liming Yue
  • Patent number: 6759952
    Abstract: A tire and suspension monitoring and warning system consisting of a set of multi-function sensors that monitor and warn of a failure mode. The system monitors and warns for tire imbalance, tire tread wear, and shock absorbers for a tire attached to a vehicle. The monitoring and warning system includes one axial, radial, and lateral acceleration measurement of the wheel to provide acceleration signal sample power. For tire imbalance, signal sample power in the second harmonic of the tire rotational frequency is compared to that of the first harmonic. For tire tread wear, average signal sample power within a second frequency range is compared to a previously stored baseline value. For shock absorber performance, a sum of all frequency components in a second predetermined frequency range is compared to a baseline value.
    Type: Grant
    Filed: July 6, 2001
    Date of Patent: July 6, 2004
    Assignee: TRW Inc.
    Inventors: Barry Dunbridge, Kenneth L. Brown, George W. McIver, Kiran R. Magiawala, Kelley D. Chilcott
  • Patent number: 6757595
    Abstract: A stability control system and method is provided for decreasing the propensity for rollover and preventing a rapid body roll movement after active management by the stability control system. The control system and method recognizes a propensity for vehicle instability, modifies the tire force vector of the vehicle's wheel to increase stability, and returns the tire force vector at a limited rate to prevent an impulse force on the wheel. The tire force vector may be held for a period of time after the propensity for vehicle instability is no longer recognized. A logic block is provided for determining the propensity for the impulse force on the wheel, which results in control of the proportional control signal or other signal to regulate the control input that is sent to the braking or steering control system.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: June 29, 2004
    Assignee: Continental Teves, Inc.
    Inventor: Geoffrey B. Bauer
  • Patent number: 6756890
    Abstract: A method and apparatus for stabilizing a vehicle in the presence of a tilt tendency are described. For this purpose, for at least one wheel, a variable quantitatively describing a wheel behavior of at least one wheel is determined. At least as a function of the variable that quantitatively describes the wheel behavior determined for the at least one wheel, a determination is made as to whether a tendency to tilt about a vehicle axis oriented in the longitudinal direction of the vehicle exists.
    Type: Grant
    Filed: May 22, 2000
    Date of Patent: June 29, 2004
    Assignee: Robert Bosch GmbH
    Inventors: Herbert Schramm, Peter Dominke, Klaus-Dieter Leimbach, Gabriel Wetzel
  • Publication number: 20040117071
    Abstract: A stability control system and method is provided for decreasing the propensity for rollover and preventing a rapid body roll movement after active management by the stability control system. The control system and method recognizes a propensity for vehicle instability, modifies the tire force vector of the vehicle's wheel to increase stability, and returns the tire force vector at a limited rate to prevent an impulse force on the wheel. The tire force vector may be held for a period of time after the propensity for vehicle instability is no longer recognized. A logic block is provided for determining the propensity for the impulse force on the wheel, which results in control of the proportional control signal or other signal to regulate the control input that is sent to the braking or steering control system.
    Type: Application
    Filed: December 13, 2002
    Publication date: June 17, 2004
    Applicant: Continental Teves, Inc.
    Inventor: Geoffrey B. Bauer
  • Publication number: 20040117085
    Abstract: A yaw stability control system (18) is enhanced to include roll stability control function for an automotive vehicle and includes a plurality of sensors (28-39) sensing the dynamic conditions of the vehicle. The sensors may include a speed sensor (20), a lateral acceleration sensor (32), a yaw rate sensor (28) and a longitudinal acceleration sensor (36). The controller (26) is coupled to the speed sensor (20), the lateral acceleration sensor (32), the yaw rate sensor (28) and a longitudinal acceleration sensor (36). The controller (26) generates both a yaw stability feedback control signal and a roll stability feedback control signal. The priority of achieving yaw stability control or roll stability control is determined through priority determination logic. If a potential rollover event is detected, the roll stability control will take the priority.
    Type: Application
    Filed: November 10, 2003
    Publication date: June 17, 2004
    Inventors: Jianbo Lu, Todd Allen Brown, Joseph Carr Meyers
  • Patent number: 6732034
    Abstract: A method for classifying a rollover event of a vehicle is used to classify a rollover event on the basis of a rotational angle and a rotation rate of the vehicle and to transmit an emergency call as a function of the classification. The rollover event itself is recognized on the basis of a momentum or energy criterion. The rotation rate is summed to determine the rotational angle, the summed rotation rate as well as the rotation rate being compared to classification boundaries as a pair of values in order to perform a classification. The emergency call is made only if the restraint devices have been deployed.
    Type: Grant
    Filed: February 6, 2002
    Date of Patent: May 4, 2004
    Assignee: Robert Bosch GmbH
    Inventors: Katja Hambsch, Michael Roelleke
  • Publication number: 20040078131
    Abstract: A method of stabilizing a vehicle involving the following steps is described: recording characteristic actual values that describe the driving condition of a vehicle; determining setpoint values that are at least partially assigned to the actual values; comparing actual values and setpoint values and influencing actual values based on comparison results, one of the recorded actual values being characteristic of the roll state of the vehicle, and one of the setpoint values being assigned to the recorded actual value that is characteristic of the roll state of the vehicle. A device for stabilizing a vehicle is also described.
    Type: Application
    Filed: December 8, 2003
    Publication date: April 22, 2004
    Inventors: Ian Faye, Klaus-Dieter Leimbach
  • Patent number: 6718248
    Abstract: A control system (18) has a roll angular rate sensor (34), a yaw angular rate sensor (28), a lateral acceleration sensor (32), a longitudinal acceleration sensor (36), and four wheel speed sensors (20). The controller (26) determines a relative pitch angle and relative roll angle using the lateral acceleration signal, the longitudinal acceleration signal and the roll rate signal; a first flatness index using the roll angular rate signal, the yaw angular rate signal, the relative roll angle and a relative pitch angle; a steady state pitch angle using the vehicle speed and the longitudinal acceleration, and a steady state roll angle using the lateral acceleration, speed, and yaw rate. The controller (26) determines a second flatness index using the steady state pitch angle, the relative pitch angle, the yaw rate, the steady state roll angle and a relative roll angle.
    Type: Grant
    Filed: June 19, 2002
    Date of Patent: April 6, 2004
    Assignee: Ford Global Technologies, LLC
    Inventors: Jianbo Lu, Todd Allen Brown
  • Publication number: 20040064236
    Abstract: A control system (18) and method for an automotive vehicle includes roll rate sensor (34) generating a roll rate signal, a lateral acceleration sensor (32) generating a lateral acceleration signal, a pitch rate sensor (37) generating a pitch rate signal, a yaw rate sensor (28) generating a yaw rate signal and a controller (26). The controller (26) is coupled to the roll rate sensor (34), the lateral acceleration sensor, the yaw rate sensor and the pitch rate sensor. The controller (26) determines a roll velocity total from the roll rate signal, the yaw rate signal and the pitch rate signal. The controller (26) also determines a relative roll angle from the roll rate signal and the lateral acceleration signal. The controller (26) determines a wheel departure angle from the total roll velocity. The controller (26) determines a calculated roll signal from the wheel departure angle and the relative roll angle signal.
    Type: Application
    Filed: June 30, 2003
    Publication date: April 1, 2004
    Inventors: Jianbo Lu, Todd Allen Brown
  • Publication number: 20040064237
    Abstract: A control system (18) for an automotive vehicle (10) having a safety system includes a controller (26) determining a first body to road angle; determining a second body to road angle; determining a final body to road angle from the first body to road angle and the second body to road angle; and controlling the safety system in response to the final body to road signal.
    Type: Application
    Filed: June 30, 2003
    Publication date: April 1, 2004
    Inventors: Jianbo Lu, Todd Allen Brown
  • Patent number: 6714851
    Abstract: A control system (13) for an automotive vehicle (10) includes a longitudinal accelerometer (24) that generates a longitudinal acceleration signal corresponding to a longitudinal acceleration of a center of gravity (COG) of the vehicle body. A lateral velocity sensor (22) generates a lateral velocity signal corresponding to the lateral velocity of the vehicle body. A controller (14) is coupled to the yaw rate sensor (18), the longitudinal accelerometer (24) and the lateral velocity sensor (22). The controller (14) determines a longitudinal speed from the longitudinal acceleration signal. The controller determines a vehicle pitch angle in response to the longitudinal speed, the yaw rate signal and the lateral velocity signal.
    Type: Grant
    Filed: January 7, 2002
    Date of Patent: March 30, 2004
    Assignee: Ford Global Technologies, LLC
    Inventors: Davorin David Hrovat, Hongtei Eric Tseng, Todd Allen Brown
  • Publication number: 20040032323
    Abstract: A detection apparatus is disclosed for detecting an overloaded condition of a truck. The apparatus includes a first arm which has a first and a second end, the first end of the first arm being rigidly secured to a frame of the truck. A portion of a proximity detector is fixedly secured to the second end of the first arm. A second arm has a first and a second extremity, the first extremity of the second arm being connected to a suspension of the truck. A further portion of the proximity detector is fixedly secured to the second extremity of the second arm. The further portion is disposed in a vicinity of the portion such that when the truck is loaded, the portion and further portion move towards each other and so that when the overloaded condition of the truck is reached, the portion and the further portion are disposed adjacent to each other. An electrical circuit is triggered when the portion and the further portion are disposed adjacent to each other.
    Type: Application
    Filed: August 8, 2002
    Publication date: February 19, 2004
    Inventor: Daniel Nommensen
  • Publication number: 20040030481
    Abstract: A method for sensitizing the roll signal for a rollover control system (18) is provided. A sensitizing method for controlling a vehicle includes when the relative roll angle reaches a threshold, initiating a wheel departure angle determination, boosting control effort and controlling a safety system (38) in response to the computed roll angles.
    Type: Application
    Filed: July 14, 2003
    Publication date: February 12, 2004
    Inventors: Albert Chenouda Salib, Jianbo Lu
  • Publication number: 20040024512
    Abstract: A method of densensitizing includes determining a relative roll angle, determining when the vehicle is in a transitional maneuver, and when the vehicle is in a transitional maneuver, setting a roll signal for control to the relative roll angle, reducing control effort and controlling a safety system (38) correspondingly.
    Type: Application
    Filed: July 14, 2003
    Publication date: February 5, 2004
    Inventors: Albert Chenouda Salib, Jianbo Lu
  • Publication number: 20040024520
    Abstract: An on-road balancing system is provided that includes an analyzer, vibration sensor, and rotation sensor. The rotation sensor is coupled to at least one vehicle wheel and the vibration sensor is coupled to a component within the vehicle. The analyzer is responsive to input from the rotation sensor and the vibration sensor to calculate a phasor quantity representative of vibrations transmitted from the wheel to the component.
    Type: Application
    Filed: July 30, 2002
    Publication date: February 5, 2004
    Inventors: Kenneth L. Oblizajek, Carl T. Wright, John D. Sopoci
  • Patent number: 6681196
    Abstract: A method for determining an absolute rotational angle of an object that is rotating about an approximately horizontal rotational axis, includes steps of: determining a change in a rotational angle of the object occurring during a time interval; determining an acceleration component acting in a direction of a vertical axis of the object; determining a change, occurring during the time interval, in the acceleration component acting in the direction of the vertical axis of the object; and calculating the absolute rotational angle of the object from the change in the rotational angle and the change in the acceleration component acting in the direction of the vertical axis of the object. A device constructed to perform the method does not necessarily require expensive, high-stability acceleration sensors. Sensors of a simple design can be used instead.
    Type: Grant
    Filed: June 17, 2002
    Date of Patent: January 20, 2004
    Assignee: Siemens Aktiengesellschaft
    Inventors: Telmo Glaser, Florian Wolf