Suspension Modification Enacted During Travel (i.e., Active Suspension Control) Patents (Class 280/5.5)
  • Patent number: 10078334
    Abstract: A lane-control system suitable for use on an automated vehicle comprising a camera, a lidar-sensor, and a controller. The camera captures an image of a roadway traveled by a host-vehicle. The lidar-sensor detects a discontinuity in the roadway. The controller is in communication with the camera and the lidar-sensor and defines an area-of-interest within the image, constructs a road-model of the roadway based on the area-of-interest, determines that the host-vehicle is approaching the discontinuity, and adjusts the area-of-interest within the image based on the discontinuity.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: September 18, 2018
    Assignee: Delphi Technologies, Inc.
    Inventors: Premchand Krishna Prasad, Michael I. Chia
  • Patent number: 10042361
    Abstract: A method for guiding a terrestrial vehicle along a desired path can include receiving a position signal from a global navigation satellite system (GNSS) antenna and a gyro signal from a gyro sensor that is indicative of: (i) at least one of a pitch and a roll of the terrestrial vehicle, and (ii) a gyro-based heading direction. A position of a point of interest of the terrestrial vehicle at a location different than the GNSS antenna can be determined based on the position signal, the gyro signal, and a positional relationship between the first location and the second location. A position-based heading direction of the point of interest of the terrestrial vehicle can be determined based on the determined position of the point of interest and at least one previously determined position of the point of interest.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: August 7, 2018
    Assignee: Beijing Unistrong Science & Technology Co., Ltd.
    Inventors: Dennis M. Collins, John A. McClure
  • Patent number: 10006379
    Abstract: Systems and methods for operating an engine in a variety of different cylinder operating modes are presented. In one example, an actual total number of available cylinder modes is increased in response to a vehicle's suspension setting and road roughness. By increasing the available cylinder modes, the engine may be operated in a higher number of modes where one or more engine cylinders may be deactivated to conserve fuel. The number of cylinder modes is increased during conditions where vehicle occupants may be less likely to object to operating the engine with fewer active cylinders.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: June 26, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: John Eric Rollinger, Adam J. Richards, Robert Michael Grant, Steven Lin, Matthew Gerow
  • Patent number: 9975603
    Abstract: A method for actuating a bicycle electronic gearshift comprising the steps of: receiving a signal indicative of the heart rate of a cyclist using the bicycle; receiving a signal indicative of the power delivered by the cyclist; calculating a performance index as a function of the value of the signal indicative of the power and of the value of the signal indicative of the heart rate; obtaining a reference value for the performance index; comparing the calculated performance index with the reference value of the performance index; and, emitting a control signal as a function of the outcome of comparing step. A bicycle electronic system for practicing the disclosed method comprises an electronic gearshift, a heart rate monitor, a power sensor, and a controller configured to carry out each step of the method.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: May 22, 2018
    Assignee: Campagnolo S.r.l.
    Inventors: Gianluca Bortolozzo, Flavio Cracco
  • Patent number: 9969426
    Abstract: Methods and apparatus are provided for controlling a steering assist unit of a vehicle. The method includes receiving first accelerometer data, second accelerometer data, and third accelerometer data then comparing and calculating differences between the first accelerometer data, second accelerometer data and the third accelerometer data to determine a relative movement values for the second and third locations. The relative movement value represents the contraction or expansion of separate systems as they independently move at or near the second and third locations. The method further includes outputting a control signal to control the travel of the steering assist unit based on the relative movement values.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: May 15, 2018
    Assignee: GM Global Technology Operations LLC
    Inventors: Scott R Kloess, Michael C Gaunt, Terrel D Johnson
  • Patent number: 9925840
    Abstract: Various embodiments of the present disclosure provide a ride height sensing system that includes an encoded electromagnetic source as an input unit for a Hall Effect sensors and the signal from the electromagnet is encoded to enable the rejection of ambient magnetic field. In various embodiments of the present disclosure, a band pass filter is used for signal processing of the encoded electromagnetic data. Additionally, several Hall Effect sensors may be used with a single electromagnetic source to provide multi-axis sensing and as such, provides robustness in determining ride height changes, or in the case of dependent suspensions (solid axle), a single electromagnetic source can used to determine ride height at multiple locations on the axle.
    Type: Grant
    Filed: April 4, 2016
    Date of Patent: March 27, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Anthony Mario D'Amato, Harold Bernard Samuels, John Jeffrey Pfeiffer
  • Patent number: 9558599
    Abstract: A monitoring system implemented on a truck. The system includes: a plurality of strain and pressure gauges at critical locations at which a failure is predicted to occur; a processor with memory hardware configured to process the acquired real-time data from the gauges to determine measures of actual instantaneous stress and a real-time operating state; an output device configured to provide information comparing measures of actual instantaneous stress with corresponding reference values of maximum allowable stress, and to provide the real-time information derived from the real-time operating state. The real-time information derived from the real-time operating state preferably includes an amount of cumulative damage or closeness to failure having regard to the measures of actual instantaneous stress and the real-time operating state.
    Type: Grant
    Filed: March 13, 2016
    Date of Patent: January 31, 2017
    Assignee: TECH MINING PTY LTD
    Inventors: Gerard Bernard Chitty, Lasha Biyanga Aponso
  • Patent number: 9505404
    Abstract: The present invention relates to a collision system in a vehicle that uses a three dimensional imaging device to map a three dimensional object external to the vehicle. A positioning module will superimpose the position of the body of the vehicle onto the mapped object in dependence of the potential impact location. The positioning module will communicate the impact location to a collision avoidance aid such as an audio or visual warning.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: November 29, 2016
    Assignee: Jaguar Land Rover Limited
    Inventors: Matt Jones, Richard Rowe
  • Patent number: 9440645
    Abstract: A traction control system according to an embodiment of the present invention includes a yaw rate detector configured to detect the yaw rate of a saddled vehicle, and a controller configured to perform a traction control based on the detected yaw rate.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: September 13, 2016
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventor: Kazuya Hieda
  • Patent number: 9020698
    Abstract: A suspension system for a traveling vehicle body is disclosed. The system includes a suspension reference position varying mechanism (18) for varying a reference position of a suspension stroke of the suspension mechanism (100), and a controller (35) configured to calculate an intermediate value from a maximal value corresponding to the maximal position of the suspension stroke and a minimal value corresponding to the minimal position of the suspension stroke, and to control the suspension reference position varying mechanism such that, when the calculated intermediate values deviates from a set target range, the intermediate value is displaced toward the target range. The controller (35) increases a control execution frequency for the suspension reference position varying mechanism (18) when the traveling speed of the vehicle body is low, and reduces the control execution frequency for the suspension reference position varying mechanism (18) when the traveling speed of the vehicle body is high.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: April 28, 2015
    Assignee: Kubota Corporation
    Inventors: Kenichi Iwami, Shigeki Hayashi, Akihiro Matsuzaki, Toshimitsu Yazaki, Atsushi Hayashi, Kazuma Ishihara
  • Patent number: 8943916
    Abstract: A chassis actuator adjusting a movably mounted component of a chassis, which has a first actuator component connected to the movably mounted component and a second actuator component connected to a fixed chassis component. The actuator components are adjustable axially by a ball screw that has a threaded spindle and a nut which runs on spindle. The nut is driveable by a drive motor that has a rotor coupled to the nut and a fixed stator arranged axially symmetrically with respect to the nut. The rotor is coupled to the nut by a wrap spring which radially surrounds the nut and via which the nut is rotated during rotation of the rotor and which forms a brake device. The brake device can be actuated by an external chassis force which acts on and rotates the nut and builds up a friction moment that counteracts the rotation of the nut.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: February 3, 2015
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Juergen Osterlaenger, Mark Lauger, Thomas Mehlis
  • Publication number: 20150028549
    Abstract: An active road noise control system for a vehicle (10) comprising am or more inertial actuators (30) for suppressing vibrations in the chassis of the vehicle (10) and/of vehicle body (8).
    Type: Application
    Filed: January 17, 2013
    Publication date: January 29, 2015
    Inventor: Barry Slater
  • Publication number: 20140353933
    Abstract: Apparatus and associated methods relate to displacement-independent remote adjustable coupling of a first suspension member to a second suspension member. In an illustrative embodiment, the first suspension member may move substantially independently of any motion of the second suspension member, when in an uncoupled state. When in a coupled state, for example, the first suspension member may move in response to movement of the second suspension member. In some embodiments, the coupling between members may be performed by removing and/or stiffening one or more degrees of motion of the suspension system. For example, in some systems, a variable shock absorber may be stiffened in response to a control system signal. A remotely coupled suspension system may advantageously provide optimal suspension configuration for various riding conditions.
    Type: Application
    Filed: May 30, 2014
    Publication date: December 4, 2014
    Applicant: Skinz Protective Gear
    Inventors: Jake Hawksworth, Jeff Hawksworth
  • Patent number: 8886403
    Abstract: A suspension system and a method for controlling a suspension system for a muscle-powered two-wheeled vehicle having a damper device with a first damper chamber and a second damper chamber coupled with one another via a controllable damping valve. A sensor is provided for capturing data about a current operational state. An electric control device and a data storage device for controlling the damper device are provided, such that at least one damping characteristic of the damper device can be influenced by a signal from the control device. The control device is configured and organized to provide a teaching mode in which route-related data are stored in the memory. The control device is furthermore configured and organized to provide a repeat mode in which the damper device is controlled according to the route-related data stored in the memory device.
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: November 11, 2014
    Assignee: DT Swiss, Inc.
    Inventors: Stefan Battlogg, Martin Walthert, Gernot Elsensohn, Jürgen Pösel
  • Patent number: 8868294
    Abstract: This disclosure, and the exemplary embodiments described herein, provides vehicle suspension systems and methods including a plurality of gas springs and an associated height control system. The height control system includes height sensors associated with the gas springs, a valve arrangement, a pressurized gas service and a control circuit which includes a variable hysteresis circuit to dynamically control the response of the suspension.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: October 21, 2014
    Assignee: Firestone Industrial Products Company, LLC
    Inventor: Anthony E. Gambrall
  • Patent number: 8855856
    Abstract: A system for providing vehicle roll control that controls the friction-force of dampers provided at the wheels of the vehicle. The system includes a lateral acceleration sensor for determining the lateral acceleration of the vehicle, a steering angle sensor for determining the steering angle of the vehicle and a speed sensor for determining the speed of the vehicle. The system calculates a current control signal for one or more of the dampers based on the lateral acceleration and/or the steering angle, and uses one or both of the current control signals to control the friction-force of the inside, outside or both of the dampers.
    Type: Grant
    Filed: August 22, 2007
    Date of Patent: October 7, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Jihan Ryu, Chandra S. Namuduri
  • Patent number: 8840118
    Abstract: Various embodiments related to hydraulic actuators and active suspension systems as well as their methods of use are described.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: September 23, 2014
    Assignee: Levant Power Corporation
    Inventors: Marco Giovanardi, Clive Tucker, Ross J. Wendell, Zackary Martin Anderson, Colin Patrick O'Shea, Vladimir Gorelik, Tyson David Sawyer, Jonathan R. Leehey, Johannes Schneider, Robert Driscoll, Patrick W. Neil, Shakeel Avadhany
  • Publication number: 20140265168
    Abstract: Various embodiments related to hydraulic actuators and active suspension systems as well as their methods of use are described.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: Levant Power Corporation
    Inventors: Marco Giovanardi, Clive Tucker, Ross J. Wendell, Zackary Martin Anderson, Colin Patrick O'Shea, Vladimir Gorelik, Tyson David Sawyer, Jonathan R. Leehey, Johannes Schneider, Robert Driscoll, Patrick W. Neil, Shakeel Avadhany
  • Publication number: 20140265170
    Abstract: Various embodiments related to hydraulic actuators and active suspension systems as well as their methods of use are described.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: Levant Power Corporation
    Inventors: Marco Giovanardi, Clive Tucker, Ross J. Wendell, Zackary M. Anderson, Colin Patrick O'Shea, Vladimir Gorelik, Tyson David Sawyer, Jonathan R. Leehey, Johannes Schneider, Robert Driscoll, Patrick W. Neil, Shakeel Avadhany
  • Publication number: 20140265169
    Abstract: Various embodiments related to hydraulic actuators and active suspension systems as well as their methods of use are described.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: Levant Power Corporation
    Inventors: Marco Giovanardi, Clive Tucker, Ross J. Wendell, Zackary Martin Anderson, John Giarratana, Richard Anthony Zuckerman, Colin Patrick O'Shea, Vladimir Gorelik, Tyson David Sawyer, Jonathan R. Leehey, Johannes Schneider, Robert Driscoll, Patrick W. Neil
  • Publication number: 20140252731
    Abstract: A laterally tiltable, multitrack vehicle is disclosed. The vehicle includes a vehicle body and at least three wheels, first and second wheels of the three wheels being assigned to a common axle to form a first wheel pair. The vehicle includes at least one wheel control part suspending each of the first and second wheels of the wheel pair from the vehicle body. At least one resilient element supports each wheel control part on the vehicle body. The resilient element has a non-linear spring characteristic with a spring rate which increases in a compression direction and decreases in a rebound direction. The vehicle may be a motor vehicle.
    Type: Application
    Filed: March 7, 2014
    Publication date: September 11, 2014
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Robert SPAHL, Edmund HALFMANN, Torsten GERHARDT, Marc SIMON
  • Publication number: 20140252732
    Abstract: A laterally tiltable, multitrack vehicle is disclosed. The vehicle includes a vehicle body and at least three wheels. The first and the second wheels are assigned to a common axle to form a first wheel pair. Each wheel of the wheel pair is rotatably mounted on a wheel support. The wheel supports of the wheel pair are connected to one another in an articulated manner via a double lever which is mounted rotatably at a first pivot point on the vehicle body. The wheel supports of the wheel pair also are connected to one another in an articulated manner via a parallel trailing arm, which runs parallel to the double lever and is configured to transmit lateral tilting of one wheel support to the other wheel support.
    Type: Application
    Filed: March 7, 2014
    Publication date: September 11, 2014
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Robert SPAHL, Edmund HALFMANN, Torsten GERHARDT, Marc SIMON
  • Publication number: 20140252730
    Abstract: A laterally tiltable, multitrack vehicle is disclosed. The vehicle includes a vehicle body and at least three wheels, with two of the wheels being assigned to a common axle to form a first wheel pair. A first wheel control part suspends the first wheel of the wheel pair from the vehicle body and a second wheel control part suspends the second wheel of the wheel pair from the vehicle body. The first wheel control part is configured to be coupled to the second wheel control part via a first gearwheel mechanism, and the second wheel control part is configured to be coupled to the first wheel control part via a second gearwheel mechanism. The first and second gearwheel mechanisms each have a negative transmission ratio between a drive shaft and an output shaft. The laterally tiltable, multitrack vehicle may be a motor vehicle.
    Type: Application
    Filed: March 7, 2014
    Publication date: September 11, 2014
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Robert SPAHL, Edmund HALFMANN, Torsten GERHARDT, Marc SIMON
  • Publication number: 20140252733
    Abstract: A laterally tiltable, multitrack vehicle is disclosed. The vehicle includes a vehicle body and at least three wheels. The first and second wheels are assigned to a common axle to form a first wheel pair. A first wheel control part suspends the first wheel of the wheel pair from the vehicle body and a second wheel control part suspends the second wheel of the wheel pair from the vehicle body. The first wheel control part is coupled to the second wheel control part via a double lever rotatably mounted on the vehicle body. At least two pivot points for the double lever can be defined on the vehicle body, the pivot points being spaced apart in a direction of a longitudinal extent of the double lever.
    Type: Application
    Filed: March 7, 2014
    Publication date: September 11, 2014
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Robert SPAHL, Edmund HALFMANN, Torsten GERHARDT, Marc SIMON
  • Publication number: 20140239603
    Abstract: A device for use in a vehicle steering system, said device comprising at least one actuator affixed to a wheel linkage of at least one wheel of said vehicle steering system. The actuator comprises a rotation assembly engagable with a first wheel linkage segment, an electric motor for actuating movement of the rotation assembly via a gear box and one or more sensors integrally contained in the actuator for sensing one or more parameters selected from the group consisting of force, speed, turns and rotation. Rotation of the rotation assembly actuates linear movement of said first wheel linkage segment into and out of said actuator to thereby adjust one or more wheel parameters of said at least one wheel, and wherein said one or more sensors provide real time data to an actuator control unit integral to said actuator to self-adjust rotational parameters of said rotation assembly.
    Type: Application
    Filed: May 1, 2014
    Publication date: August 28, 2014
    Inventor: Alexander Balandin
  • Patent number: 8781684
    Abstract: A three-wheeled vehicle that includes: a single front wheel; two rear wheels; a passenger cabin; an electronic steering control unit; and a steering input device configured to send an electronic signal to the electronic steering control unit corresponding to an input received at the steering input device associated with turning the three-wheeled vehicle; wherein the electronic steering control unit is configured to counter-steer the front wheel in response to receiving the electronic signal, wherein the counter-steering of the front wheel initiates a leaning of the passenger cabin a direction of turning of the three-wheeled vehicle.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: July 15, 2014
    Assignee: Alpha Motors Company Limited
    Inventor: Ian A. Bruce
  • Patent number: 8781681
    Abstract: In an active suspension system for actively suspending a plant, a fail-safe system controlled by a failure-detector has a selectively-activated damper coupled to the plant. The damper may be a separate element from the actuator. Under normal circumstances, the damper is deactivated and therefore generates no damping force. However, if the failure detector detects an abnormal state in the system, it activates the damper, thereby causing a damping force that resists motion of the plant.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: July 15, 2014
    Assignee: Bose Corporation
    Inventors: James A. Parison, Jr., Upendra V. Ummethala
  • Patent number: 8755971
    Abstract: A system according to the principles of the present disclosure includes a variance determination module and a fault detection module. The variance determination module determines a variance of samples generated from a ride height signal. The ride height signal is output by a ride height sensor that detects a ride height of a vehicle. The fault detection module detects a fault in the ride height sensor based on the variance.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: June 17, 2014
    Inventors: Brian A. MacFarlane, John F. Larsen, Steven A. Opiteck
  • Patent number: 8755969
    Abstract: A bicycle suspension control apparatus includes a user operating device and a control device. The control device is operatively coupled to the user operating device to selectively control a front bicycle suspension between a plurality of operating states and a rear bicycle suspension between a plurality of operating states. The control device is configured to selectively change the operating states of both the front and rear bicycle suspensions to different ones of the operating states in response to a single operation of the user operating device. The control device controls the front and rear bicycle suspensions such that a first operating state change operation of one of the front and rear bicycle suspensions occurs later than a second operating state change operation of the other of the front and rear bicycle suspensions.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: June 17, 2014
    Assignee: Shimano Inc.
    Inventors: Tadashi Ichida, Hideki Ikemoto, Toyoto Shirai
  • Patent number: 8725351
    Abstract: An active suspension system for a suspended device. The system has an electromagnetic actuator that produces force on the suspended device and that is powered by a power source, and a control system that provides control signals that cause the electromagnetic actuator to exert force on the suspended device. The control system is adapted to receive a turn-off signal that results in disabling the electromagnetic actuator from producing force on the suspended device. When the control system receives a turn-off signal it provides actuator turn-off control signals that cause the force exerted by the electromagnetic actuator to progressively transition to zero over a transition time period.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: May 13, 2014
    Assignee: Bose Corporation
    Inventors: Brian Selden, Antonio Sangermano
  • Patent number: 8718871
    Abstract: A method for setting the damping force for at least one motor vehicle vibration damper which is connected between a vehicle body and a wheel, wherein, for the vibration damper or for each vibration damper, a damping force is determined and set within an actuating range defined by a lower limiting value and an upper limiting value, as a function of a vertical movement of the vehicle body, and as a function of a vertical movement of the respective wheel, and wherein the lower limiting value of the actuating range is also determined as a function of the vertical movement of the vehicle body and as a function of the vertical movement of the respective wheel.
    Type: Grant
    Filed: February 1, 2012
    Date of Patent: May 6, 2014
    Assignee: Dr. Ing. H.C. F. Porsche Aktiengesellschaft
    Inventors: Jochen Liebold, Thorsten Brobeil
  • Patent number: 8701845
    Abstract: A suspension device (S) comprises: an actuator (A) including a motion conversion mechanism (T) for converting rotational motion of a screw nut (1) to linear motion of a threaded shaft (2), and a motor (M) connected to the screw nut (1); and a fluid pressure damper (D) connected to the threaded shaft (2), wherein the threaded shaft (2) is formed in a cylindrical shape, a connecting shaft (30) for connecting a rod (31) or a cylinder (32) of the fluid pressure damper (D) to the threaded shaft (2) is inserted into the threaded shaft (2), and the connecting shaft (30) is connected to an end, opposite to the fluid pressure damper, of the threaded shaft (2). Accordingly, the connection between the actuator and the hydraulic damper is facilitated.
    Type: Grant
    Filed: January 15, 2009
    Date of Patent: April 22, 2014
    Assignee: Kayaba Industry Co., Ltd.
    Inventor: Takuhiro Kondo
  • Patent number: 8692706
    Abstract: A sensor device for measuring the compression travel and/or the compression rate of wheels and/or axles of vehicles, in particular of commercial vehicles, may include at least one sensor measuring in a contactless manner. The sensor device may include a radar and/or high-frequency sensor generating a beam, which is emitted and received after reflection at a reference and reflection surface.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: April 8, 2014
    Assignee: Knorr-Bremse Systeme fuer Nutzfahrzeuge GmbH
    Inventor: Falk Hecker
  • Patent number: 8620524
    Abstract: A correction torque command is outputted to a driving/braking torque producing means in accordance with a correction torque to suppress vehicle body spring vibration. When a state of the correction torque amplitude being greater than a predetermined amplitude continues for a given predetermined time, a control apparatus outputs a hunting time correction torque command smaller than a normal time correction toque command. When a state of the correction torque amplitude being smaller than or equal to the predetermined amplitude continues for a first predetermined time, the control apparatus returns the output of correction torque command from the hunting time correction torque command to the normal time correction torque command. The control apparatus continues the output of the hunting time correction torque command if the state in which the correction torque amplitude exceeds the predetermined amplitude continues for the given predetermined time, before the expiration of the first time period.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: December 31, 2013
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yosuke Kobayashi, Takeshi Kimura, Yuuki Shiozawa, Mitsunori Ohta, Hiroki Sasaki, Akihiro Itoh, Masahiko Yoshizawa
  • Patent number: 8585062
    Abstract: A tunable pneumatic suspension includes a piston and two opposed pneumatic chambers. The two champers apply opposed pneumatic pressures to opposite faces of the piston. The tunable pneumatic suspension also includes a pneumatic controller that independently controls the pressure in each of the chambers. The independent control of the two chambers allows the suspension to change the relative positions of the piston and the chambers by differing the pressures in each chamber, and allows the suspension to change its stiffness by increasing or decreasing the pressures in each of the chambers by equal amounts. If used in a vehicle, changing the relative positions of the piston and the chambers can change the ride height of the vehicle, and changing the stiffness of the suspension can change the stiffness of the vehicle's ride.
    Type: Grant
    Filed: November 9, 2009
    Date of Patent: November 19, 2013
    Assignee: Nucleus Scientific, Inc.
    Inventor: Ian W. Hunter
  • Patent number: 8573604
    Abstract: A wheel suspension for a motor vehicle includes an electric vibration damper which is affixed to the vehicle body and which has a generator that can be driven by translational wheel movements of the vehicle wheel in order to generate an induced voltage. The stator and the rotor of the generator are interconnected via at least one gear stage, wherein a gear element of the gear stage is a drive gear wheel of a rack-and-pinion drive that is drivingly connected to a wheel carrier of the wheel suspension, with the wheel carrier following the wheel movements.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: November 5, 2013
    Assignee: Audi AG
    Inventor: Marco Willems
  • Patent number: 8565973
    Abstract: A method for operating a motor vehicle which can be driven in at least two drive modes which differ from one another as to whether or not at least one wheel of the motor vehicle is driven is designed to increase the safety in the driving behavior when the drive mode changes, by adjusting a previously defined value which is assigned to the current drive mode for a variable that is related to a chassis device of the motor vehicle.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: October 22, 2013
    Assignee: Audi AG
    Inventor: Michael Wein
  • Patent number: 8556273
    Abstract: Four electromagnetic shock absorbers (30) are provided with motors (40FL, 40FR, 40RL, 40RR). First current-carrying terminals (T1) of the motors (40FL, 40FR, 40RL, 40RR) are connected to one another by a ground line (61). Further, second current-carrying terminals (T2) of the motor (40FL) and the motor (40FR) are connected to each other by a front wheel roll damping line (62F). Second current-carrying terminals (T2) of the motor (40RL) and the motor (40RR) are connected to each other by a rear wheel roll damping line (62R). Second current-carrying terminals (T2) of the motor (40FL) and the motor (40RL) are connected to each other by a left wheel pitch damping line (63L). Second current-carrying terminals (T2) of the motor (40FR) and the motor (40RR) are connected to each other by a right wheel pitch damping line (63R). In this manner, appropriate damping forces can be generated with a simple configuration not only against vehicle bouncing but also against vehicle rolling and pitching.
    Type: Grant
    Filed: May 19, 2010
    Date of Patent: October 15, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Atsushi Ogawa
  • Patent number: 8560173
    Abstract: A control system in a straddle-type vehicle is provided. The control system includes front and rear wheels, comprises a load distribution changing section which changes a ground load distribution between the front and rear wheels during driving of the vehicle; a slip suppressing condition determiner section which determines whether or not a suppressing condition used to suppress a slip of one of the front and rear wheels is met, during driving of the vehicle; and a load distribution control section which controls the load distribution changing section to make the ground load of the one of the front and rear wheels greater when the slip suppressing condition determiner section determines that the suppressing condition is met, than when the slip suppressing condition determiner section determines that the suppressing condition is not met.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: October 15, 2013
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventor: Yoshimoto Matsuda
  • Patent number: 8560199
    Abstract: A control system in a vehicle including a front wheel which is a driven wheel and a rear wheel which is a drive wheel, the control system including: a control unit configured to control a driving power generated in a driving source according to a driving state of the vehicle; and a front wheel speed sensor configured to detect a rotational speed of the front wheel; the control unit including: a wheelie determiner configured to determine whether or not a predetermined wheelie starting condition is met, based on a value detected by the front wheel speed sensor; and a driving power controller configured to suppress the driving power if the wheelie determiner determines that the predetermined wheelie starting condition is met.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: October 15, 2013
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventor: Yoshimoto Matsuda
  • Patent number: 8554414
    Abstract: A rollover suppression control apparatus and method are provided. The apparatus includes a rollover state value detection unit which detects a rollover state value indicating that a vehicle is under rollover tendency, a braking force applying unit which performs a rollover suppression control of applying braking force to a wheel of the vehicle to suppress the rollover thereof when the detected rollover state value is greater than the control threshold value, a understeer state detection unit which detects whether a traveling state of the vehicle is a understeer state or a non-understeer state, and a setting unit which sets a first control threshold value as the control threshold value when the traveling state is detected as the non-understeer state, and which sets a second control threshold value greater than the first control threshold value as the control threshold value when the traveling state is detected as the understeer state.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: October 8, 2013
    Assignee: Advics Co., Ltd.
    Inventors: Hideaki Koto, Toshihisa Kato
  • Patent number: 8548678
    Abstract: An apparatus has an active suspension including an electromagnetic actuator coupled to a plant in a vehicle. A force bias eliminator is coupled to the plant for causing the actuator to experience a zero-mean load, and a vibration isolation block generates a control signal based on the response of a nominal plant to measured disturbances of the actively suspended plant. A compensation system modifies the control signal in response to a difference between the response of the nominal plant to the control signal and a measured response of the actively-suspended plant to the control signal.
    Type: Grant
    Filed: September 2, 2010
    Date of Patent: October 1, 2013
    Assignee: Bose Corporation
    Inventors: Upendra V. Ummethala, Daniel Francis Opila, James A. Parison, Jr., Thomas C. Shroeder, Linda T. Scully, Roman N. Litovsky
  • Patent number: 8525453
    Abstract: A damper system for a vehicle including an electromagnetic damper, wherein the electromagnetic damper includes: (i) an electromagnetic motor; (ii) a motion converting mechanism; and (iii) an external circuit including (A) a first connection passage, (B) a second connection passage, (C) a first-connection-passage-current adjuster, and (D) a second-connection-passage-current adjuster, wherein the damper system comprises an external-circuit controller including: (a) a main-adjuster control portion configured to perform, on one of the first-connection-passage-current adjuster and the second-connection-passage-current adjuster that is designated as a main adjuster, a first control for mainly damping the relative vibration of the sprung portion and the unsprung portion; and (b) an auxiliary-adjuster control portion configured to perform, on one of the first-connection-passage-current adjuster and the second-connection-passage-current adjuster that is designated as an auxiliary adjuster, a second control for assisti
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: September 3, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Atsushi Ogawa
  • Patent number: 8521361
    Abstract: A ride height control system and method may be used to control load distribution at wheel locations in a vehicle suspension system at target ride height. Load distribution may be controlled by adjusting the forces applied by the suspension system at respective wheel locations while maintaining a target ride height. In an exemplary air spring suspension system or hydropneumatic suspension system, the applied forces may be adjusted by adjusting the pressure in the suspension system at the respective wheel locations. The ride height control system and method may determine and establish balanced target ride height forces (e.g., planar forces) to be applied at the wheel locations of the vehicle to prevent a cross-jacking condition. The ride height control system and method may also determine and establish target ride height forces for a vehicle on an uneven surface to prevent imbalances caused by wheel displacement.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: August 27, 2013
    Assignee: Fourth Floor Associates, Inc.
    Inventors: William T. Larkins, Edward Lanzilotta, Damian Harty
  • Patent number: 8516914
    Abstract: A suspension actuator (1) for positioning a movably mounted component of a motor vehicle suspension, including a first actuator component (4), which is to be connected to the movably mounted component, and a second actuator component (3), which is to be connected to a fixed suspension component, wherein both actuator components can be axially adjusted relative to one another via a ball-type linear drive (5), which includes a threaded spindle (6) and a nut (7) running thereon. Either the nut can be driven via a drive motor (10) for the axial adjustment of the threaded spindle or the spindle can be driven via a drive motor for axial adjustment of the nut.
    Type: Grant
    Filed: April 27, 2009
    Date of Patent: August 27, 2013
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Jürgen Osterlänger, Ralf Mayer, Manfred Kraus, Thomas Mehlis, Stefanie Bärthlein, Meinhard Schmidt, Thomas Dirnberger, Tobias Noss, Falk Heinrich
  • Patent number: 8517395
    Abstract: An active suspension system for a vehicle including elements for developing and executing a trajectory plan responsive to the path on which the vehicle is traveling. The system may include a location system for locating the vehicle, and a system for retrieving a road profile corresponding to the vehicle location.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: August 27, 2013
    Assignee: Bose Corporation
    Inventors: Lawrence D. Knox, Neal M. Lackritz, William R. Short
  • Patent number: 8515620
    Abstract: A motor vehicle, with a drive train comprising a drive assembly, a transmission and wheels (2). The drive train further including actuators (3, 4) for adjusting at least one of the tracking and/or the camber. Sensors (5), for determining the tracking and/or camber, are integrated in the motor vehicle, and a control unit (6) only operates the actuators (3, 4), to adjust the tracking and/or the camber, when the drive train is in a defined actual static condition.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: August 20, 2013
    Assignee: ZF Friedrichshafen AG
    Inventors: Karl-Hermann Ketteler, Thomas Winstel, Guenther Horsak, Marc Wiesenthal
  • Patent number: 8473157
    Abstract: A method for controlling four semi-active suspensions of a vehicle comprising the steps of: determining, for each semi-active suspension, a first and a second signal representative of the acceleration and speed of the sprung mass; determining, for a pair of semi-active suspensions arranged on one side of the vehicle a third and a four signal representative of the acceleration and pitch speed; calculating for each semi-active suspension, a first damping coefficient as a function of the difference between the first and second signal squared; calculating for each semi-active suspension, a second damping coefficient as a function of the difference between the third and the four signal squared; for each semi-active suspension, comparing the first and the second damping coefficient for determining the higher coefficient; applying to each force generator device, an electronic control signal indicative of the respective high damping coefficient.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: June 25, 2013
    Assignees: Fiat Group Automobiles S.p.A., Politecnico di Milano
    Inventors: Sergio M. Savaresi, Cristiano Spelta, Diego Delvecchio, Gabriele Bonaccorso, Fabio Ghirardo, Sebastiano Campo
  • Patent number: 8473154
    Abstract: A vehicle control system, which is configured to obtain an index on the basis of a running condition of a vehicle and to change at least any one of a driving force control characteristic and a vehicle body support characteristic of a suspension mechanism in response to the index, is configured to acquire information associated with a friction coefficient of a road surface on which the vehicle runs, and to correct the at least any one of the driving force control characteristic and the vehicle body support characteristic, which is changed in response to the index, on the basis of the information associated with the friction coefficient of the road surface.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: June 25, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Shin Noumura, Ken Koibuchi, Kaiji Itabashi, Keisuke Takeuchi, Toshio Tanahashi
  • Patent number: 8457841
    Abstract: An analytical methodology for the specification of progressive optimal compression damping of a suspension system to negotiate severe events, yet provides very acceptable ride quality and handling during routine events. In a broad aspect, the method provides a progressive optimal unconstrained damping response of the wheel assembly with respect to the body. In a preferred aspect, the method provides a progressive optimal constrained damping response of the wheel assembly with respect to the body, wherein below a predetermined velocity a conventional damper force is retained.
    Type: Grant
    Filed: November 14, 2007
    Date of Patent: June 4, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Richard J. Knoll, William Golpe, Nikolai K. Moshchuk, Chandra S. Namuduri, Flavio Nardi, Jihan Ryu, Raviraj U. Nayak