Lateral And Longitudinal Vehicle Attitude Control (e.g., Combinations Of Antidive, Antipitch, Antiroll, Antisquat, Antisway, Antiyaw, Riding, Or Suspension Height) Patents (Class 280/5.507)
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Patent number: 12227260Abstract: A position adjusting system for use in a vehicle includes a seat for supporting a rider, a rear wheel and a steerable front wheel, a steering arrangement including a handlebar for allowing the rider to control the steerable wheel, and a hub for interconnecting the components of the wheeled vehicle. The steerable wheel is steerable about at least two axes. The position adjusting system includes an adjustable seat support movably connected to the hub, an adjustable handlebar support movably connected to the hub, and a releasable position locking system configured to lock the position of the components of the vehicle relative to the hub. The hub includes a first portion and second portion, wherein the first and second portions are moveably connected to one another, such as by pivoting, sliding, orbiting, or a combination thereof. The hub permits adjustment of the angle between the steering axes.Type: GrantFiled: June 15, 2022Date of Patent: February 18, 2025Assignee: LiteCycle, Inc.Inventor: Jeffrey Michael
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Patent number: 12157342Abstract: A system and method for controlling a vehicle, where the system includes independent driving modules each including a connection device having a rotation center spaced apart from a driving shaft in a forward/rearward direction and configured to connect the wheel and a vehicle body to move the wheel in the forward/rearward or an upward/downward direction, a shock absorber extending in a longitudinal direction and configured to contract or stretch, to connect the vehicle body and the connection device, and to restrict an upward/downward movement of the connection device, and a driving device configured to rotate the wheel, a road surface detector configured to detect a height displacement or a state of a road, and a controller configured to control velocities of the front and rear wheels of the independent driving modules, and to change a height of the vehicle based on the height displacement or the state of the road.Type: GrantFiled: June 19, 2023Date of Patent: December 3, 2024Assignee: Hyundai Mobis Co., Ltd.Inventors: Sang Oh Han, Won Hyok Choi, Tae Heon Lee, Kyongwon Min
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Patent number: 12065007Abstract: A vehicle includes a suspension system having a first damper, a second damper, and a controller. The dampers include housings and pistons sealingly interfaced with an inner diameter of the housing, dividing the damper into a first and second chamber. The suspension system includes proportional variable relief valves which control pressure of fluid entering or exiting one of the first and second chamber of one of the first and second damper. The controller controls the valves to control extension or compression of the first damper and extension or compression of the second damper based on a degree of roll of the vehicle during a turn of the vehicle or a degree of pitch of the vehicle during acceleration or deceleration of the vehicle. The first and second damper control a roll and pitch of the vehicle. The valves control a damping rate of one of the first and second damper.Type: GrantFiled: October 24, 2022Date of Patent: August 20, 2024Assignee: Oshkosh CorporationInventors: Kai P. Schubart, Christopher J. Rukas, Erik S. Ellifson, Aaron J. Rositch
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Patent number: 12043074Abstract: A method for controlling the damping characteristic of a shock absorber of a vehicle, particularly for compensating the variation of the operating temperature of the shock absorber, in an active or semi-active suspension system. The compensation of the variation of the operating temperature of the shock absorber takes place by: estimating a mechanical power dissipated in heat by the shock absorber; estimating a thermal power exchanged by the shock absorber with the environment; evaluating the current operating temperature of the shock absorber as a function of the dissipated mechanical power and of the thermal power exchanged with the environment; and controlling the driving current of the control valve of the shock absorber according to a shock absorber reference model indicating a relationship between the damping force of the shock absorber, the operating temperature of the shock absorber and the driving current of the control valve.Type: GrantFiled: December 20, 2019Date of Patent: July 23, 2024Assignee: MARELLI SUSPENSION SYSTEMS ITALY S.p.A.Inventors: Walter Bruno, Piero Antonio Conti, Fabio Cotto, Marco Di Vittorio, Giordano Greco, Simone Marchetti
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Patent number: 11993125Abstract: A vehicle suspension is disclosed having a hydraulic actuator, a cylinder, a piston mounted inside the cylinder dividing the cylinder into a compression chamber and an extension chamber, and a supply hydraulic circuit connected to the actuator to supply the compression chamber and the extension chamber with working fluid. The supply hydraulic circuit includes a high-pressure line connected to a delivery port of a hydraulic pump, a low-pressure line connected to a suction port of the pump, a spool valve connected to the compression and extension chambers of the actuator and to the high-pressure line and to the low-pressure line to put the chambers of the actuator in communication with the lines of the supply hydraulic circuit, and a first pressure accumulator connected to the high-pressure line. The spool valve connects the compression chamber and/or the extension chamber of the actuator with the high-pressure line.Type: GrantFiled: June 23, 2021Date of Patent: May 28, 2024Assignee: WAY ASSAUTO SRLInventor: Fabio Cotto
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Patent number: 11993121Abstract: A vehicle includes a suspension system having a first damper, a second damper, valves and a controller. Each of the first damper and the second damper include a housing and a piston sealingly interfaced with an inner diameter of the housing, dividing the damper into a first and second chamber. Each valve controls flow rate of fluid entering or exiting at least one of the first and second chamber of at least one of the first damper and the second damper. The controller controls the valves to control extension or compression of at least one of the first damper and the second damper based on at least one of a degree of roll of the vehicle during a turn of the vehicle and a degree of pitch of the vehicle during acceleration of the vehicle or a degree of pitch of the vehicle during deceleration of the vehicle.Type: GrantFiled: January 25, 2023Date of Patent: May 28, 2024Assignee: Oshkosh CorporationInventors: Kai P. Schubart, Christopher J. Rukas, Erik S. Ellifson, Aaron J. Rositch
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Patent number: 11938773Abstract: An electrically powered suspension system includes: an electromagnetic actuator provided between a vehicle body and a wheel of a vehicle and configured to generate a damping force for damping vibration of the vehicle body; a wheel speed sensor that detects a wheel speed of the wheel; a wheel speed variation amount calculation part that calculates a wheel speed variation amount on the basis of wheel speed detection values detected by the wheel speed sensor; a 3D gyro sensor that detects sprung state amounts including a sprung pitching action of the vehicle; and a wheel speed variation amount correction part that estimates a variation component in the wheel speed variation amount on the basis of a sprung pitch amount and corrects the wheel speed variation amount so as to reduce the estimated variation component.Type: GrantFiled: December 8, 2021Date of Patent: March 26, 2024Assignee: HONDA MOTOR CO., LTD.Inventor: Ryoma Kanda
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Patent number: 11897554Abstract: A turning control system includes an electronic control unit. The electronic control unit is configured to perform: a steering operation amount calculating process of calculating a steering operation amount; an angle command value calculating process of calculating an angle command value; an angle operation amount calculating process of calculating an angle operation amount; an operation process of operating a drive circuit of an electric motor; an adjustment process of adjusting a magnitude of a value obtained by subtracting the angle operation amount which is reflected in the operation process from the angle operation amount; and a correction process of correcting a magnitude of an input when the angle command value is calculated in the angle command value calculating process to be less when the magnitude of the subtracted value is great than when the magnitude of the subtracted value is small.Type: GrantFiled: April 16, 2020Date of Patent: February 13, 2024Assignee: JTEKT CORPORATIONInventor: Terutaka Tamaizumi
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Patent number: 11833876Abstract: A rough road detection system is disclosed. The system includes a sensor data receiver to receive sensor data from one or more sensors monitoring a vehicle. A sensor data evaluator to: identify a repeating pattern in the sensor data, the repeating pattern indicative of a terrain type being traversed by the vehicle, determine a value of the repeating pattern, obtain a present set of operational values for at least one damping characteristic of an active valve damper coupled with the vehicle, and modify the present set of operational values for the at least one damping characteristic of the active valve damper based on the value of the repeating pattern to develop a modified set of operational values for the at least one damping characteristic of the active valve damper.Type: GrantFiled: July 13, 2021Date of Patent: December 5, 2023Assignee: Fox Factory, Inc.Inventors: Everet Owen Ericksen, Andrew Diao, Mike Fraguglia, Evan Peterson, James T. Pickett
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Patent number: 11787253Abstract: A fluid tank for storing a compressible fluid may have a translucent wall is disclosed. A light emitting diode (LED) may be configured to illuminate the wall. The fluid tank may comprise a tube and two end caps. The tube may be coupled to the end caps. Connecting rods disposed in the tube may be coupled to the end caps to squeeze the end caps onto the opposed ends of the tube. The LED may be disposed between one of the end portions of the tube and the end cap attached to that end portion of the tube. When the LED is illuminated, light is projected into the tube so that the tank now has a color to it.Type: GrantFiled: May 28, 2021Date of Patent: October 17, 2023Assignee: Universal Air, Inc.Inventors: Yuzuru Oishi, Daniel Ratcliff
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Patent number: 11654739Abstract: A vehicle suspension control apparatus includes a mode determination device that determines a mode of a shock absorber for a vehicle, corresponding to an identified speed bump, when the speed bump is identified in front of the vehicle, a suspension control amount calculation device that calculates an amount of suspension control for passing over the speed bump, based on the determined mode of the shock absorber, and a controller that controls a suspension of the vehicle based on the calculated amount of suspension control.Type: GrantFiled: February 9, 2022Date of Patent: May 23, 2023Assignees: Hyundai Motor Company, Kia CorporationInventors: Hyung Jin Kim, Byung Joo Kim, Jong Hoon Choi, Young Jae Kim, In Yong Jung, Yoon Kab Noh
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Patent number: 11584185Abstract: A vehicle includes a suspension system having a first damper, a second damper, valves and a controller. Each of the first damper and the second damper include a housing and a piston sealingly interfaced with an inner diameter of the housing, dividing the damper into a first and second chamber. Each valve controls flow rate of fluid entering or exiting at least one of the first and second chamber of at least one of the first damper and the second damper. The controller controls the valves to control extension or compression of at least one of the first damper and the second damper based on at least one of a degree of roll of the vehicle during a turn of the vehicle and a degree of pitch of the vehicle during acceleration of the vehicle or a degree of pitch of the vehicle during deceleration of the vehicle.Type: GrantFiled: December 20, 2019Date of Patent: February 21, 2023Assignee: Oshkosh CorporationInventors: Kai P. Schubart, Christopher J. Rukas, Erik S. Ellifson, Aaron J. Rositch
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Patent number: 11554626Abstract: An apparatus for adjusting a height of a vehicle including a vehicle height adjustment unit configured to adjust a height of the vehicle; a hydraulic pressure supply unit configured to supply a hydraulic pressure supplied to a caliper from a braking device for braking of the vehicle to the vehicle height adjustment unit; and a control unit configured to control a hydraulic pressure supplied to the vehicle height adjustment unit from the braking device, by controlling the hydraulic pressure supply unit depending on whether a predetermined vehicle height adjustment condition is satisfied.Type: GrantFiled: November 27, 2019Date of Patent: January 17, 2023Assignee: Hyundai Mobis Co., Ltd.Inventor: Jun Sung Park
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Patent number: 11529836Abstract: A vehicle includes a suspension system having a first damper, a second damper, and a controller. The dampers include housings and pistons sealingly interfaced with an inner diameter of the housing, dividing the damper into a first and second chamber. The suspension system includes proportional variable relief valves which control pressure of fluid entering or exiting one of the first and second chamber of one of the first and second damper. The controller controls the valves to control extension or compression of the first damper and extension or compression of the second damper based on a degree of roll of the vehicle during a turn of the vehicle or a degree of pitch of the vehicle during acceleration or deceleration of the vehicle. The first and second damper control a roll and pitch of the vehicle. The valves control a damping rate of one of the first and second damper.Type: GrantFiled: December 20, 2019Date of Patent: December 20, 2022Assignee: Oshkosh CorporationInventors: Kai P. Schubart, Christopher J. Rukas, Erik S. Ellifson, Aaron J. Rositch
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Patent number: 11254353Abstract: An embodiment of the present invention allows for application of an assist torque or reaction torque which causes a driver to feel less discomfort. An ECU (600) includes a control variable calculating section (611) configured to calculate a control variable for controlling a magnitude of the assist torque or reaction torque, with reference to a steering torque applied to a steering member (410); and a control variable correcting section (612) configured to correct the control variable calculated by the control variable calculating section, with reference to a roll rate of a vehicle body, a steering angle of the steering member, and a steering angle speed of the steering member.Type: GrantFiled: August 12, 2019Date of Patent: February 22, 2022Assignee: SHOWA CORPORATIONInventors: Ken Isshiki, Eishi Ishimaru
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Patent number: 11192421Abstract: A method and device utilizing pressure and/or height measurements across an axle of a vehicle to detect when the vehicle turns and, when a turn is detected, a control action is taken to avoid pneumatic pressure loss by inhibiting active leveling via the height adjustable suspension.Type: GrantFiled: June 10, 2020Date of Patent: December 7, 2021Assignee: Parker-Hannifin CorporationInventors: Chad M. Walkowiak, Christopher G. Pollack, Daniel Sepasi
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Patent number: 11124035Abstract: A suspension actuator includes an upper mount, a lower mount, a first actuator mechanism, and a second actuator mechanism. The upper mount is connectable to a sprung mass of a vehicle. The lower mount is connectable to an unsprung mass of the vehicle. The first actuator mechanism forms a first load path between the upper mount and the lower mount. The first actuator mechanism is one of an electromagnetic linear actuator mechanism or a ball screw actuator mechanism. The second actuator mechanism forms a second load path in parallel with the first load path between the upper mount and the lower mount. The second actuator mechanism is one of a mechanical linear actuator mechanism, an air spring actuator mechanism, or a hydraulic actuator mechanism.Type: GrantFiled: August 29, 2018Date of Patent: September 21, 2021Assignee: Apple Inc.Inventors: Jonathan L. Hall, Troy A. Carter, Paul J. Keas
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Patent number: 11090997Abstract: A suspension actuator includes an upper mount, a lower mount, a first actuator mechanism, and a second actuator mechanism. The upper mount is connectable to a sprung mass of a vehicle. The lower mount is connectable to an unsprung mass of the vehicle. The first actuator mechanism forms a first load path between the upper mount and the lower mount. The first actuator mechanism is one of an electromagnetic linear actuator mechanism or a ball screw actuator mechanism. The second actuator mechanism forms a second load path in parallel with the first load path between the upper mount and the lower mount. The second actuator mechanism is one of a mechanical linear actuator mechanism, an air spring actuator mechanism, or a hydraulic actuator mechanism.Type: GrantFiled: August 29, 2018Date of Patent: August 17, 2021Assignee: Apple Inc.Inventors: Jonathan L. Hall, Troy A. Carter, Paul J. Keas
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Patent number: 11052719Abstract: A vehicle height adjustment device includes: vehicle height adjustment actuators provided to at least a pair of front wheels or a pair of rear wheels of a vehicle, and configured to adjust a vehicle height defined by a distance between the wheels and a vehicle body; an actuator control device configured to control the vehicle height adjustment actuators such that the vehicle height approximates to a target vehicle height; and a detection device configured to detect a physical quantity which varies as upward or downward movement of the vehicle body is restricted due to contact with an external contacted object. The actuator control device stops upward or downward movement of the vehicle body, and switches to movement in an opposite direction based on a detected value of the detection device, when the determination that the movement of the vehicle body is restricted is made by the detection device.Type: GrantFiled: March 24, 2017Date of Patent: July 6, 2021Assignee: Hitachi Astemo, Ltd.Inventors: Ryusuke Hirao, Nobuyuki Ichimaru
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Patent number: 10940735Abstract: Provided are a vehicle control apparatus and a vehicle control method, including: a sensor configured to sense a vehicle speed value, operation information of an actuator for generating a torque in a stabilizer bar of an active roller stabilizer (ARS), and operation information of the stabilizer bar; and a controller configured to calculate a target torque value that is to be generated in the stabilizer bar on the basis of the sensed vehicle speed value, the sensed operation information of the actuator, and the sensed operation information of the stabilizer bar, and to determine whether the sensed vehicle speed value is a target vehicle speed value that is set to perform an ARS control mode, and in response to the sensed vehicle speed value determined to be the target vehicle speed value, and determine a deadband period in which a torque of the actuator is not transmitted, using a change value of a torque value and a change state of the torque value while the torque value is tracing the calculated target torqType: GrantFiled: June 7, 2019Date of Patent: March 9, 2021Assignee: MANDO CORPORATIONInventor: Sa-Rang Cha
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Patent number: 10899383Abstract: The disclosure concerns a tilting vehicle with at least one multi-wheel axle, a vehicle structure and a control unit that is arranged to detect a lateral acceleration acting on the tilting vehicle and actively adjust a tilt angle of the structure of the vehicle about the longitudinal axis thereof. In order to optimize adjustment of the tilt angle in a tilting vehicle, the control unit is arranged to adjust the tilt angle so that in a direction of a lateral axis of the structure of the vehicle, a Y component of the lateral acceleration is partially compensated by a Y component of acceleration due to gravity according to a specified compensation proportion. The compensation proportion increases as a function of the lateral acceleration to a global maximum value at a first acceleration, and decreases above the first acceleration.Type: GrantFiled: July 12, 2018Date of Patent: January 26, 2021Assignee: Ford Global Technologies, LLCInventors: Marc Simon, Lucian Lippok
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Patent number: 10857995Abstract: The vehicle attitude control device generates target yaw moment on the basis of the deviation between a standard yaw rate and an actual yaw rate and is applied to a vehicle driven with the target yaw moment. The vehicle attitude control device is provided with a detection speed processor that performs a process such that a vehicle speed gently changes, a limit yaw rate calculator that determines a limit yaw rate by dividing lateral acceleration by the processed vehicle speed, and a standard yaw rate corrector that corrects the standard yaw rate using the limit yaw rate when the standard yaw rate is higher than the limit yaw rate. A target yaw moment calculator generates target yaw moment on the basis of the deviation between the standard yaw rate corrected by the standard yaw rate corrector and the actual yaw rate.Type: GrantFiled: March 23, 2018Date of Patent: December 8, 2020Assignee: NTN CORPORATIONInventor: Tomohiro Sugai
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Patent number: 10850586Abstract: A system for controlling a suspension of a vehicle includes a plurality of sensors, an anti-roll moment module configured to determine a front-to-total anti-roll moment distribution based on at least a first operating parameter of the vehicle, at least one suspension actuator, and a suspension control module configured to control the at least one suspension actuator based on the determined front-to-total anti-roll moment distribution.Type: GrantFiled: August 23, 2018Date of Patent: December 1, 2020Assignee: Tenneco Automotive Operating Company Inc.Inventors: Aldo Sorniotti, Marco Ricco, Miguel Dhaens, Christophe Lauwerys, Bert Vandersmissen
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Patent number: 10820468Abstract: In one aspect, a system for determining soil roughness of a field across which an agricultural implement is being moved may include a tool configured to perform a tillage operation on soil within the field as the agricultural implement is moved across the field. The system may also include a sensor configured to detect a parameter associated with an acceleration of the tool. Furthermore, the system may include a controller communicatively coupled to the sensor, with the controller configured to determine a soil roughness characteristic of the soil based on measurement signals received from the sensor.Type: GrantFiled: September 19, 2018Date of Patent: November 3, 2020Assignee: CNH Industrial America LLCInventor: James W. Henry
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Patent number: 10814688Abstract: Various embodiments related to hydraulic actuators and active suspension systems as well as their methods of use are described.Type: GrantFiled: June 25, 2018Date of Patent: October 27, 2020Assignee: ClearMotion, Inc.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
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Patent number: 10730360Abstract: A method for controlling a hydropneumatic suspension of a mobile crane having at least four wheels that are each allocated a spring cylinder, having at least four spring circuits in which at least one spring cylinder is incorporated in each case, each spring circuit being allocated a pressure measurement sensor and a path measurement sensor, in which signals of the pressure measurement sensors and of the path measurement sensors are processed by a control unit, and the spring cylinders are actuated. To optimize control of a hydropneumatic suspension for road travel operation of the mobile crane the mobile crane is levelled using preset suspension height set values of the spring circuits, then, in the control unit, on the basis of pressures detected by pressure sensors, pressure set values are calculated per spring circuit and pressures in the spring circuits are readjusted with the aid of pressure set values.Type: GrantFiled: August 16, 2018Date of Patent: August 4, 2020Assignee: Terex Global GmbHInventors: Hans-Joachim Rathke, Mathieu Ragot
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Patent number: 10625558Abstract: A damping force control apparatus for a suspension is applied to a damper whose damping force can be set based on a damping force control value and controls the damping force control value. The damper is attached to a support portion with a buffer member interposed between the support portion of a vehicle body and a cylinder of the damper. The apparatus includes: a displacement related quantity estimation device estimating relative displacement of a vehicle wheel and a relative speed of the vehicle wheel with respect to the vehicle body as estimated relative displacement and an estimated relative speed; and a damping force control value calculation device determining the damping force control value so as to suppress vibration of the vehicle body based on state variables provided from the vehicle body and the estimated relative speed.Type: GrantFiled: October 23, 2017Date of Patent: April 21, 2020Assignee: AISIN SEIKI KABUSHIKI KAISHAInventors: Akihito Yamamoto, Wataru Tanaka
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Patent number: 10434518Abstract: A method and a system for supporting a frame of a mineral material crusher on a body of a crushing plant and a mineral material processing plant. The crusher frame is supported by first support devices in place in relation to the body of the crushing plant at first support points and by at least two second support devices at second support points. The second support device has an adjusting member between the crusher frame and the body of the crushing plant, and at least one second support device is configured to move the frame of the crusher vertically in relation to the body of the crushing plant. The adjusting member has a cylinder and a piston inside the cylinder which define an adjusting volume therebetween. A pressure is formed from a load above the adjusting member and is arranged to form into the adjusting volumes of the adjusting members.Type: GrantFiled: May 26, 2014Date of Patent: October 8, 2019Assignee: Metso Minerals, Inc.Inventor: Jari Jonkka
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Patent number: 10414453Abstract: A headlamp aiming method for a vehicle includes measuring, by a height measurement instrument, at least two reference heights of at least two reference areas along a body of the vehicle. The height measurement instrument is positioned external of the vehicle, and one of the at least two reference heights is indicative of a height of a headlamp of the vehicle. The method further includes determining a vehicle pitch and a headlamp height variation of the vehicle based on the measured reference heights, calculating a modified headlamp position based on the vehicle pitch, the headlamp height variation, and a standard headlamp position, and aiming a headlamp of the vehicle based on the modified headlamp position.Type: GrantFiled: January 24, 2018Date of Patent: September 17, 2019Assignee: Ford Motor CompanyInventors: Joshua Magill, Matt Roosen, Albert Ekladyous
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Patent number: 10407288Abstract: A lift device includes a chassis, a rear leveling assembly coupled to a rear end of the chassis, and a front leveling assembly coupled to a front end of the chassis. The rear leveling assembly includes a first rear actuator and a second rear actuator. The first rear actuator and the second rear actuator are selectively engageable to facilitate providing active control of a rear pitch adjustment and a rear roll adjustment of the rear leveling assembly. The front leveling assembly includes a first front actuator and a second front actuator. The first front actuator and the second front actuator are (i) selectively fluidly couplable to facilitate providing passive control of a front pitch adjustment and a front roll adjustment of the front leveling assembly and (ii) selectively fluidly decouplable to facilitate providing active control of the front pitch adjustment and the front roll adjustment of the front leveling assembly.Type: GrantFiled: January 25, 2018Date of Patent: September 10, 2019Assignee: Oshkosh CorporationInventors: JiHong Hao, Ignacy Puszkiewicz
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Patent number: 10023192Abstract: A vibration damping control device that controls drive output of a vehicle so as to suppress pitch/bounce vibration of the vehicle includes a vibration damping control unit that controls driving torque of the vehicle so as to reduce an amplitude of the pitch/bounce vibration, based on wheel torque applied to wheels of the vehicle and generated at a location where the wheels contact with a road surface, and a compensation component adjusting unit that reduces an amplitude of a compensation component that corrects the wheel torque calculated by the vibration damping control unit so as to suppress the pitch/bounce vibration, as the magnitude of the steering angle velocity of the vehicle increases.Type: GrantFiled: March 14, 2016Date of Patent: July 17, 2018Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Masashi Igarashi
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Patent number: 10017023Abstract: A method for controlling the level of an air-suspended motor vehicle includes determining, by a sensor system, at least one of the speed of travel or the actuation state of a parking brake, measuring, if at least one of the speed of travel has undershot a minimum speed of travelor the parking brake has been actuated, the actual level in the region of each air spring bellows, comparing the measured values for the actual level with the predetermined setpoint level, determining an actual level value of an air spring bellows having the greatest deviation from the setpoint level, and expanding, for the air spring bellows having an actual level having the greatest deviation from the setpoint level, the tolerance band by at least one of increasing the upper tolerance limit thereof to a corrected upper tolerance limit or lowering the lower tolerance limit thereof to a corrected lower tolerance limit.Type: GrantFiled: May 22, 2014Date of Patent: July 10, 2018Assignee: WABCO GmbHInventors: Juergen Albers, Siegfried Bartel, Reinhard Gocz, Ingo Jovers, Uwe Lentz
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Patent number: 9994239Abstract: The invention relates to a shock absorber with a housing, an inner pipe arranged in the housing, a piston rod, a piston which is arranged at that end of the piston rod, and which piston divides the interior of the inner pipe into a lower chamber and an upper chamber, a first valve arrangement which is arranged on the piston, and a third valve arrangement which is arranged at the lower end of the inner pipe and by means of which the working medium which is held in the interior of the housing, serving as a tank, can flow out of the interior of the housing, only into the lower chamber when the piston moves in the inner pipe. The shock absorber is distinguished by the fact that a hydraulic pump drive is arranged between a first connection element of the lower chamber of the inner pipe and a second connection element at the upper chamber of the inner pipe.Type: GrantFiled: September 25, 2014Date of Patent: June 12, 2018Assignee: GRAMMER AGInventor: Erwin Haller
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Patent number: 9987916Abstract: An apparatus and a method of controlling a motor are provided for reducing vibration of an electric vehicle that maximize regenerative energy by limiting a vibration reduction torque at a maximum regenerative braking torque region of a motor. The method includes comparing a battery state of charge (SOC) with a predetermined SOC when a regenerative braking of the electric vehicle is required and calculating a size of vibration component of the electric vehicle when the battery SOC is less than the predetermined SOC. Further, the size of vibration component is compared with a first predetermined value and a vibration reduction torque of a driving direction is limited when the size of vibration component is less than the first predetermined value.Type: GrantFiled: November 10, 2015Date of Patent: June 5, 2018Assignee: Hyundai Motor CompanyInventor: Woocheol Cho
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Patent number: 9927682Abstract: Embodiments discussed herein provide improved control of an unmanned aerial vehicle camera gimbal. In some embodiments, a linear control circuit is described that uses an operational amplifier that allows the system to retain its passive isolation of high frequency disturbances.Type: GrantFiled: March 31, 2016Date of Patent: March 27, 2018Assignee: VANTAGE ROBOTICS, LLCInventors: Tobin Fisher, Johannes Becker Van Niekerk, Craig Janik
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Patent number: 9912276Abstract: In one embodiment, a control circuit for a linear vibration motor may be configured to drive the linear vibration motor to vibrate using a closed loop run mode followed by an open loop run mode, and may be configured to control the linear vibration motor to stop vibrating using an anti-drive signal wherein the frequency is adjusted to be near to an estimated value of the natural frequency of the linear vibration motor.Type: GrantFiled: August 22, 2016Date of Patent: March 6, 2018Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLCInventor: Tsutomu Murata
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Patent number: 9868333Abstract: In a method of operating an active suspension of a motor vehicle, power is added to at least one active control element of the active suspension, arranged between a wheel and a body, for damping a movement of the motor vehicle in a vertical direction when negotiating a terrain to thereby influence at least one control variable of the suspension, which control variable is oriented in the vertical direction. A first signal of a velocity of the body in the vertical direction and a second signal of the at least one control variable are determined. After ascertaining a phase shift between the first and second signals, a value of the phase shift is compared with a predefined threshold value. The presence of excitation is identified for the vertical body movement, when the value of the phase shift deviates from the threshold value at least by a tolerance value.Type: GrantFiled: July 24, 2015Date of Patent: January 16, 2018Assignee: AUDI AGInventors: Christoph Göhrle, Andreas Unger
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Patent number: 9746005Abstract: A hydraulic drive system for an actuator uses a pair of pressure compensated hydraulic machines to control flow to and from the drive chambers of the actuator. The capacity of one of the machines is limited in a motoring mode to determine a maximum rate of efflux from one of the chambers. The pressure of fluid supplied to the other of said chambers is maintained at a predetermined level to provide motive force. The machines are mechanically coupled to permit energy recovery and charge an accumulator to store surplus energy.Type: GrantFiled: April 18, 2012Date of Patent: August 29, 2017Assignee: Concentric Rockford Inc.Inventors: George Kadlicko, John Gregorio, Tobin Gimber, Jeffrey Maney
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Patent number: 9415659Abstract: A vehicle control device includes a variable-damping-force shock absorber, a sprung mass vibration damping control, an unsprung mass vibration damping control device, and a damping force control device configured to calculate a damping force control amount on the basis of a sprung-mass vibration damping control amount when the sprung-mass vibration damping amount is greater than an unsprung-mass vibration damping control amount, calculating a damping force control amount on the basis of the unsprung-mass vibration damping amount so as to maintain the damping force distribution factor when the sprung-mass vibration damping amount is equal to or less than the unsprung-mass vibration damping amount, and controlling the damping force of the variable-damping-force shock absorber.Type: GrantFiled: January 22, 2013Date of Patent: August 16, 2016Assignee: Nissan Motor Co., Ltd.Inventors: Hironobu Kikuchi, Katsuhiko Hirayama
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Patent number: 9409478Abstract: A wobble determination device 1 appropriately determines the wobble of a vehicle and does not cause inconvenience for a driver. The wobble determination device 1 includes a steering determination unit 41 that determines whether the driver of a vehicle performs sudden steering after a non-steering state of the driver is maintained for a predetermined period of time and performs sudden return steering over a steering position in the non-steering state in a direction opposite to a direction of the sudden steering after the sudden steering and a wobble determination unit 42 that determines that the vehicle wobbles when the steering determination unit 41 determines that the steering of the driver is the sudden return steering which is performed over the steering position in the non-steering state.Type: GrantFiled: July 26, 2012Date of Patent: August 9, 2016Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yuji Okuda, Shinya Kawamata
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Patent number: 9365089Abstract: A suspension assembly between a sprung element and an unsprung element includes an active suspension system having a controllable load-carrying spring element arranged with a negative stiffness element between the sprung element and the unsprung element. The negative stiffness element has a negative stiffness constant that opposes a positive spring rate of the active suspension system to achieve a zero total spring stiffness of the suspension assembly under static conditions.Type: GrantFiled: December 16, 2013Date of Patent: June 14, 2016Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventor: Avshalom Suissa
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Patent number: 9283959Abstract: In order to control a behavior generated on a body as a result of a travel of a vehicle, an electronic control unit controls rotation of each of in-wheel motors, thereby generating a predetermined braking force or driving force approximately the same in magnitude on each wheel. Meanwhile, the electronic control unit uses respective pipelines and a direction control circuit depending on the behavior generated on the body to connect fluid pressure cylinders on a fluid pressure supplying side and fluid pressure cylinders on a fluid pressure supplied side to each other for communication. As a result, the fluid pressure cylinders convert vertical forces of the body acting as component forces of a predetermined braking/driving force into hydraulic pressures and supply the fluid pressure cylinders with the hydraulic pressures, and the fluid pressure cylinders convert the supplied hydraulic pressures into vertical forces, thereby exerting the vertical forces on the body.Type: GrantFiled: February 24, 2012Date of Patent: March 15, 2016Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Masatoshi Nakatsu
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Publication number: 20150130145Abstract: Herein provided is a suspension assembly that can constantly maintain a frictional force between the ground contact surface of a rear wheel and the road surface when a vehicle goes around a curve. The suspension assembly includes a suspension mechanism and a linkage mechanism. The suspension mechanism is configured to allow a center-of-rotation shaft of the rear wheel to be displaced with respect to a vehicle body in the vertical direction. The linkage mechanism is configured to link the suspension mechanism and the center-of-rotation shaft such that an axis of roll of the vehicle body is constantly located in the vicinity of the contact ground surface and movement of the center-of-rotation shaft with respect to the suspension mechanism is allowed.Type: ApplicationFiled: November 14, 2014Publication date: May 14, 2015Inventor: Shigeki MIYAMORI
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Publication number: 20150108726Abstract: A suspension apparatus for a vehicle includes a bar operatively connectable to driver-side and passenger-side suspension corner assemblies to extend therebetween and rotatably mountable to the vehicle body between the suspension corner assemblies. The suspension apparatus also includes a body load reaction component that is operatively connectable to at least one of the body and the bar. The body load reaction component is engaged to provide reaction force on the body to manage vertical displacement of the body.Type: ApplicationFiled: October 18, 2013Publication date: April 23, 2015Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Jeffrey A. Mosher, Scott A. Kolp, Robert G. Izak
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Patent number: 8991539Abstract: The invention relates to a suspension assembly (1) for suspending a cabin (2) of a truck or the like vehicle. The assembly comprises a plurality of spring members (4a-d) arranged between the cabin (2) and a chassis of the vehicle, and a torsion bar (5) extending between at least two of said spring members (4a-d) so as to increase the roll stiffness of the assembly. The assembly further comprises an actuator (6) with which a torsion angle of the torsion bar (5) can be adjusted allowing active roll stabilization of the cabin (2).Type: GrantFiled: November 26, 2008Date of Patent: March 31, 2015Assignee: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNOInventors: Albertus Clemens Maria Van der Knaap, Robert M. A. Frank Verschuren, Jeroen Vandenhoudt, Raymond B. C. Tinsel, Ronny Maria Theophilus Wouters
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Publication number: 20150084289Abstract: Systems, devices, and methods are described for providing, among other things, a stand-up wheel chair having automatic stability control.Type: ApplicationFiled: September 24, 2013Publication date: March 26, 2015Applicant: Elwha LLCInventors: Roderick A. Hyde, Muriel Y. Ishikawa, Stephen L. Malaska, Clarence T. Tegreene
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Patent number: 8954233Abstract: A vehicle body drifting suppression device including a steering torque detection unit which detects a steering torque of a vehicle, wherein a vehicle body drifting suppression is performed according to a vehicle body drifting suppression control-amount, and the vehicle body drifting suppression control-amount is adjusted according to a temporal sustention status of the steering torque.Type: GrantFiled: May 13, 2009Date of Patent: February 10, 2015Assignee: Honda Motor Co., Ltd.Inventors: Yoshifumi Nakamura, Norio Yamazaki, Shigenori Takimoto, Yoshimichi Kawamoto
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Publication number: 20140319787Abstract: A wheel suspension for a two-track motor vehicle includes a multi-link assembly having control arms that are articulated on a vehicle body and on a wheel carrier, a rotary actuator for an active suspension control system, with a motor-gear-unit constructed to transfer torques as actuating forces to the multi-link assembly via a torsion rod, and at least one reinforcing brace independent of the multi-link assembly and disposed on a side of the vehicle body and extending below the multi-link assembly, as viewed in a vertical direction of the vehicle body. The reinforcing brace delimits downwardly in the vehicle's vertical direction a free space, in which the rotary actuator is at least partially arranged.Type: ApplicationFiled: April 25, 2014Publication date: October 30, 2014Applicant: AUDI AGInventors: Andreas Schindler, Dominik Mohrlock, Joachim Schmitt
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Patent number: 8870191Abstract: An active roll control device utilizes driving torque to move a suspension arm side connection point of a stabilizer link connecting both sides of a stabilizer bar with a suspension arm along a sliding unit to actively control vehicle roll. The sliding unit may include slide rails, a load surface on an upper surface and a lower surface, and a guide surface on an inner side surface, a connector is connected to a pushrod of a drive shaft of the operating source and a lower end portion of the stabilizer link through a double ball joint, a plurality of load rollers rotatably disposed on an upper surface and a lower surface of the connector through a roller pin and contacts the load surface of the sliding rail, and guide rollers rotatably on the connector through a roller pin and contacts the guide surface of the sliding rail.Type: GrantFiled: July 30, 2012Date of Patent: October 28, 2014Assignee: Hyundai Motor CompanyInventors: Un Koo Lee, Sung Bae Jang, Pil Young Jeong
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Patent number: 8827287Abstract: An axle control element of a motor vehicle has a torsion spring system connected to a wheel control element via a rotary spring arm and fixedly supported on the vehicle body via a controllable actuator. The torsion spring system has a torsion spring rod nested inside a torsion spring tube. An actuator unit is spaced apart from the torsion spring system and is fixed on the vehicle body and a pivotally controllable drive lever is connected to the actuator unit. The drive lever is connected to a torsion spring tube, and an output lever is connected to a torsion spring rod and directly or indirectly via a coupling to the wheel control element. Alternatively, the drive lever is connected to a torsion spring rod, and the output lever is connected to a torsion spring tube and directly or indirectly via a coupling to the wheel control element.Type: GrantFiled: June 17, 2011Date of Patent: September 9, 2014Assignee: Audi AGInventor: Wilfried Michel