Attitude Change Suppressive Control (e.g., Antiroll Or Antipitch) Patents (Class 701/38)
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Patent number: 8489300Abstract: An object of the present invention is to execute an optimum control of vibrations due to a driver's operation of an accelerator pedal, steering wheel and brake pedal. The operation instructions are inputted into a vibration calculating means (kinetic model) comprising a vehicle body model, suspension model and tire model. Conventional kinetic model controlled the suspension in order to suppress the vehicle body vibration. However, in the kinetic model of the present invention, the tire vibration due to a change in the engine output is first absorbed by the suspension, whereby a residual vibration which was not be absorbed yet by the suspension is transferred to the vehicle body. The operation inputs are compensated by the three feed-back loops between the outputs of the above-mentioned three portions and input of the tire portion, giving the highest priority on the vehicle body model.Type: GrantFiled: November 10, 2003Date of Patent: July 16, 2013Assignee: DENSO CORPORATIONInventors: Motoaki Kataoka, Toshiki Matsumoto, Tsutomu Tashiro, Mamoru Mabuchi, Mamoru Sawada
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Patent number: 8478503Abstract: A vehicle controlling apparatus that performs vehicle body vibration-damping control to suppress vibration occurring in a vehicle body by changing wheel torque of driving wheels by controlling output torque of an engine, wherein an electronic control unit is provided with a vehicle body vibration-damping control inhibiting unit that inhibits the vehicle body vibration-damping control such that a drive system of a vehicle, which transmits power of the engine, does not resonate with execution of the vehicle body vibration-damping control, or/and a vehicle body vibration-damping control adjusting unit that adjusts a control amount of the vehicle body vibration-damping control in a direction to suppress a vibration-damping suppression effect of the vehicle body vibration-damping control.Type: GrantFiled: January 13, 2009Date of Patent: July 2, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventor: Takayuki Otsuka
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Patent number: 8473157Abstract: 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: GrantFiled: April 26, 2012Date of Patent: June 25, 2013Assignees: Fiat Group Automobiles S.p.A., Politecnico di MilanoInventors: Sergio M. Savaresi, Cristiano Spelta, Diego Delvecchio, Gabriele Bonaccorso, Fabio Ghirardo, Sebastiano Campo
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Patent number: 8473156Abstract: A driving dynamics control system for vehicles. The control system including at least one driving dynamics controller that is fed setpoint specifications and driving state variables as input data. The control system also includes a plurality of actuators that can be controlled and/or regulated to modify the dynamics of the vehicle, such as steering, adjustable independently of the driver, on a front and/or rear axle of the vehicle, a chassis adjustable independently of the driver, a brake adjustable independently of the driver, and a drive train adjustable independently of the driver. The driving dynamics controller determines a central control specification from the setpoint specifications and the driving state variables and sends it to a distribution algorithm that distributes the control specification into manipulated variables for driving the actuators.Type: GrantFiled: October 15, 2009Date of Patent: June 25, 2013Assignee: Continental Teves AG & Co. oHGInventors: Peter Lauer, Thomas Raste, Roger Bauer
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Publication number: 20130151075Abstract: A rollover avoidance method may include determining tire loading for at least two tires of a vehicle. A stability of the vehicle with regard to rolling over may be predicted based at least on the determined tire loading. The vehicle may be controlled at least on the basis of the predicted stability.Type: ApplicationFiled: December 12, 2011Publication date: June 13, 2013Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Nikolai K. Moshchuk, Shih-Ken Chen, Flavio Nardj
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Patent number: 8457832Abstract: A vehicle body speed estimating device. An attitude angle estimating mechanism estimates a roll angle and a pitch angle. A longitudinal speed computing mechanism computes longitudinal vehicle body speed. A vehicle body speed estimator estimates lateral vehicle body speed by using, as state amounts of vehicle motion, the longitudinal vehicle body speed and the lateral vehicle body speed, and on the basis of respective detected values of longitudinal acceleration, lateral acceleration and yaw angular velocity of vehicle motion, and respective estimated values of the roll angle and the pitch angle, and a product of a computed value of the longitudinal vehicle body speed and a value obtained from an absolute value of the detected value of the yaw angular velocity.Type: GrantFiled: September 9, 2008Date of Patent: June 4, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventors: Eiichi Ono, Yumiko Miura, Katsuyuki Yamaguchi, Taisuke Yasutomi
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Patent number: 8457841Abstract: 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: GrantFiled: November 14, 2007Date of Patent: June 4, 2013Assignee: GM Global Technology Operations LLCInventors: Richard J. Knoll, William Golpe, Nikolai K. Moshchuk, Chandra S. Namuduri, Flavio Nardi, Jihan Ryu, Raviraj U. Nayak
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Publication number: 20130131923Abstract: The vehicle that includes a primary chassis supported by a road; a secondary chassis adapted for supporting the driver and movably linked to the primary chassis; the secondary chassis being out of a mechanical contact to the road; and at least one mechanism adapted for controlling movement of the vehicle. The mechanism non-resiliently reacts to changing positions of the secondary chassis and the driver's body such that the driver is able to maintain resultant vector of forces applied to the secondary chassis directed to a point of a linkage between the primary chassis and the secondary chassis.Type: ApplicationFiled: January 16, 2013Publication date: May 23, 2013Inventor: Ofer TZIPMAN
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Patent number: 8447466Abstract: A method for controlling the pressure in a compressed-air accumulator of a level-control system of a motor vehicle utilizing a pressure-control apparatus constructed and arranged to adjust the accumulator pressure according to a predetermined index pressure value. The index pressure value is automatically determined by a computing device based on the relative level and/or the load of the vehicle.Type: GrantFiled: August 5, 2004Date of Patent: May 21, 2013Assignee: WABCO GmbHInventors: Jörg Meier, Olaf Thielking
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Patent number: 8442720Abstract: A vehicle includes a control system that is used to control a vehicle system. The control system determines a roll condition in response to a yaw rate sensor and a pitch rate sensor without having to use a roll rate sensor. A relative roll angle, relative pitch angle, global roll angle, and global pitch angle may also be determined. A safety system may be controlled in response to the roll condition, roll angle, or the pitch angles individually or in combination.Type: GrantFiled: August 6, 2009Date of Patent: May 14, 2013Assignee: Ford Global TechnologiesInventors: Jianbo Lu, Jeffrey Rupp
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Patent number: 8437912Abstract: A high efficiency vehicle propulsion system to propel a vehicle using a hydraulic motor pump functioning as motor connected to the vehicle wheels. Vehicle braking and deceleration energy is recaptured using the same hydraulic motor pump functioning as a pump and stored in an inertia wheel configured as a gyroscope. Energy is stored in and retrieved from the inertia wheel by the use of a hydraulic motor pump functioning as a motor to store energy in the inertia wheel of the gyroscope or as a pump or to retrieve energy from the inertial wheel of the gyroscope. Energy to serve the system is derived from the use of a small engine running infrequently and intermittently. Additional energy is retrieved by the use of an active shock absorption system. Energy management and vehicle propulsion are controlled by a central computer processing signals derived from action of an on-board operator, an on-board program of from a remote source.Type: GrantFiled: May 4, 2010Date of Patent: May 7, 2013Inventor: Gerald Frank Simons
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Patent number: 8437950Abstract: A method for increasing the driving stability of a vehicle, particularly of a commercial vehicle, which counteracts a vehicle instability by a control intervention in a control system operating the drive and/or the brakes of the vehicle, in which the control intervention occurs as a function of the ratio between the height of the center of gravity of the vehicle and a spring constant of the vehicle suspension.Type: GrantFiled: December 22, 2003Date of Patent: May 7, 2013Assignee: Knorr-Bremse Systeme fuer Nutzfahrzeuge GmbHInventors: Herbert Schramm, Falk Hecker, Matthias Horn, Ulrich Guecker, Stefan Hummel
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Patent number: 8437907Abstract: In a method for determining a roadway state (STATE) of a roadway on which a vehicle (10) is travelling which has at least one wheel (14) and an acceleration sensor (24) which is assigned to the wheel (14), in order to determine a vertical component of an acceleration of the wheel (14), a characteristic value which is representative of the roadway state (STATE) is determined as a function of a measured signal (AC_VERT) of the acceleration sensor (18).Type: GrantFiled: October 31, 2007Date of Patent: May 7, 2013Assignee: Continental Automotive GmbHInventors: Ning Bian, Celine Gamulescu, Andreas Mayer, Thomas Schweiger
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Patent number: 8428807Abstract: Process for determining at least one state of motion of a vehicle body (10) of a vehicle (1), which has at least one wheel (2) spring-mounted on the vehicle body (10) via a wheel suspension (6), wherein an inward deflection (zrel) of the wheel (2) is measured by means of a path or angle sensor (21), an inward deflection velocity (?rel) of the wheel (2) is determined by differentiating the inward deflection (zrel) of the wheel (2) over time, a vertical acceleration ({umlaut over (z)}wheel) of the wheel (2) is measured by means of an acceleration sensor (22), a vertical velocity (?wheel) of the wheel (2) is determined by integrating the vertical acceleration ({umlaut over (z)}wheel) of the wheel (2) over time, and a vertical velocity (?body) of the vehicle body (10) is calculated by forming a difference of the vertical velocity (?wheel) of wheel (2) and the inward deflection velocity (?rel) of wheel (2).Type: GrantFiled: January 10, 2007Date of Patent: April 23, 2013Assignee: ZF Friedrichshafen AGInventors: Andreas Gärtner, Eberhard Hees, Stefan Rappelt
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Patent number: 8423244Abstract: A method and device for controlled damping of a vehicle stores a set of controller parameters R1 to Rn for controlling the damping of the unloaded vehicle as a function of the dynamic driving situation thereof 1 to n, detect a loading condition b of the vehicle, adapt the set of controller parameters R1 to Rn as a function of the detected loading condition b to a set of controlled parameters R1b to Rnb, and dams the vehicle as a function of the set of controller parameters R1b to Rnb as a function of the dynamic driving situation thereon 1 to n.Type: GrantFiled: October 26, 2011Date of Patent: April 16, 2013Assignee: Bayerische Motoren Werke AktiengesellschaftInventors: Uwe Proemm, Alexander Meske, Martin Froehlich
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Patent number: 8417417Abstract: A method to control a vehicle includes monitoring desired vehicle force and moment, monitoring real-time corner constraints upon vehicle dynamics which includes monitoring corner states of health for the vehicle, and monitoring corner capacities for the vehicle. The method further includes determining a desired corner force and moment distribution based upon the desired vehicle force and moment and the real-time corner constraints, and controlling the vehicle based upon the desired corner force and moment distribution.Type: GrantFiled: July 28, 2010Date of Patent: April 9, 2013Assignee: GM Global Technology Operations LLCInventors: Shih-Ken Chen, Weiwen Deng, Youssef A. Ghoneim, Nikolai K. Moshohuk, Flavio Nardi, Jihan Ryu, Kevin A. O'Dea
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Patent number: 8412435Abstract: A system, method and computer program product is provided for detecting if a vehicle has spun. A normal force and a lateral force of each of a front and rear axle of a vehicle is estimated. A coefficient of friction representative of a surface is estimated. Lateral momenta of the front and rear axles based on the coefficient of friction and the normal and lateral forces is calculated. Whether a surplus momentum is present, is determined. If the surplus momentum is present, a yaw rate of the vehicle is integrated respect to time to obtain a vehicle rotation estimation.Type: GrantFiled: October 8, 2007Date of Patent: April 2, 2013Assignee: GM Global Technology Operations, LLCInventor: Daniel S. Maitlen
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Publication number: 20130079988Abstract: A vehicle motion control apparatus, which is configured to be used with a vehicle including a brake force control unit capable of generating a brake force during a steering operation of the vehicle, includes a plurality of force generation apparatuses disposed between a vehicle body of the vehicle and a plurality of axles, each of which is capable of generating an adjustable force between the vehicle body and each wheel of the vehicle, a force adjustment unit configured to adjust the force of each of the force generation apparatuses, and a target pitch state calculation unit configured to calculate a target pitch state from a state in which the vehicle body turns. The force adjustment unit adjusts the force of each of the force generation apparatuses so that a pitch state of the vehicle body approaches the target pitch state calculated by the target pitch state calculation unit.Type: ApplicationFiled: September 21, 2012Publication date: March 28, 2013Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventor: HITACHI AUTOMOTIVE SYSTEMS, LTD.
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Publication number: 20130060423Abstract: The land vehicle includes a body, a controllable suspension system, the controllable suspension system for controlling suspension movements between the body and land engagers. The land vehicle includes a computer system and suspension sensors located proximate the land engagers for measuring suspension parameters representative of suspension movements between the body and the land engagers and outputting a plurality of suspension sensor measurement output signals. The land vehicle includes controllable force suspension members located proximate the land engagers and the suspension sensors, the controllable force suspension members applying suspension travel forces between the body and the land engagers to control the suspension movements.Type: ApplicationFiled: May 12, 2011Publication date: March 7, 2013Applicant: LORD CORPORATIONInventor: Mark Jolly
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Patent number: 8380395Abstract: A vehicle control apparatus including a road wheel speed detecting section, a vehicle body speed detecting section, a slip ratio calculating section configured to calculate slip ratios which are ratios of respective road wheel speeds with respect to vehicle body speed, an anti-skid brake control section configured to control wheel cylinder fluid pressures for respective wheel cylinders such that the slip ratios fall within a predetermined range, a wheel cylinder fluid pressure acquiring section, damping force variable shock absorbers which are disposed between the respective road wheels and the vehicle body and constructed to variably adjust respective damping force characteristics thereof, and a damping force variable shock absorber control section configured to set the damping force characteristics in accordance with the acquired wheel cylinder fluid pressures.Type: GrantFiled: September 10, 2010Date of Patent: February 19, 2013Assignee: Hitachi Automotive Systems, Ltd.Inventors: Satoshi Kashiwamura, Hiroyuki Shimizu
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Patent number: 8378803Abstract: A vehicle safety system comprising a microprocessor; a first sensor operatively connected to the microprocessor, the first sensor functions to detect a degree of deviation of yaw or pitch or roll of the vehicle relative to a control value of 0; wherein the microprocessor is configured to receive a first signal from the first sensor, the first signal being the degree of deviation; wherein when the first signal is between 31 and 45 degrees the microprocessor is configured to generate a first output command to a speaker to play a first alarm sound; wherein when the first signal is 46 degrees or more the microprocessor is configured to generate a second output command to the speaker to play a second alarm sound.Type: GrantFiled: November 25, 2009Date of Patent: February 19, 2013Inventor: Craig A. Keiser
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Publication number: 20130041545Abstract: In a method and an apparatus for affecting the cornering performance of a motor vehicle, a transverse acceleration of the motor vehicle is determined, a desired transverse tilt of the motor vehicle defined based on the determined transverse acceleration, at least one actuator of an active suspension system of the motor vehicle is adjusted so that the motor vehicle assumes the desired transverse tilt, and an additional actuator intervening in the steering system of the motor vehicle. A yaw movement of the motor vehicle caused by the adjustment of the at least one actuator of the active suspension system is at least partially compensated by the additional actuator.Type: ApplicationFiled: February 9, 2012Publication date: February 14, 2013Applicant: AUDI AGInventors: Michael Bär, Karl-Heinz Meitinger
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Patent number: 8370025Abstract: A target value for yaw angle velocity gain is computed according to a map expressing a relationship between steering wheel angle and yaw angle velocity gain predetermined such that a direction as seen from a driver of a target destination point for vehicle travel at a predetermined time after a forward gaze and a direction as seen from the driver are caused to match each other, and a steering gear ratio is controlled accordingly. A target value for a steering wheel torque corresponding to the detected steering wheel angle and the acquired yaw angular velocity is set, based on a relationship between yaw angular velocity and resistance-feel level predetermined such that the resistance feel level for a driver monotonically increases with increasing yaw angular velocity. Control is then preformed so as to realize the steering wheel torque target value.Type: GrantFiled: March 14, 2012Date of Patent: February 5, 2013Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Eiichi Ono, Yuji Muragishi, Daisuke Yamada, Shinsuke Sato
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Publication number: 20130030649Abstract: 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: ApplicationFiled: July 27, 2012Publication date: January 31, 2013Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventor: Yoshimoto Matsuda
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Patent number: 8364370Abstract: When a target yaw moment Ms is computed, an estimated lateral acceleration GH and estimated deceleration GT of a host vehicle are determined beforehand according to target yaw moment Ms, and when the estimated lateral acceleration GH is smaller than a threshold preset on the basis of the estimated deceleration GT the target yaw moment Ms is corrected to a smaller limit value Msm.Type: GrantFiled: March 12, 2009Date of Patent: January 29, 2013Assignee: Nissan Motor Co., Ltd.Inventors: Takeshi Yonezawa, Kou Sato
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Patent number: 8364346Abstract: A method and device for roll stabilization of a motor vehicle are provided. On the basis of a measured transverse acceleration or a calculated transverse acceleration of the motor vehicle, actuating signals are generated for actuators which are associated with a front axle and a rear axle of the motor vehicle and which provide support torques on the front axle and/or on the rear axle for roll stabilization. To ensure a satisfactory self-steering effect of the motor vehicle, a torque distribution between the support torque provided on the front axle and the support torque provided on the rear axle is modified on the basis of a first signal which allows conclusions to be drawn concerning the actuation of a gas pedal, and/or on the basis of a second signal which allows conclusions to be drawn concerning the actuation of a brake pedal.Type: GrantFiled: April 14, 2008Date of Patent: January 29, 2013Assignee: Dr. Ing. H.C. F. Porsche AktiengesellschaftInventors: Hartmut Fischlein, Robert Ferger-Andrews
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Patent number: 8355844Abstract: The vehicle motion control apparatus includes a control unit 37A and sensors 2, 3, 4, 30, 31, 32, 33, etc. The actual state quantity obtaining unit 52 calculates a vehicle body actual slip angle ?z_act, etc. The reference dynamic-characteristic model calculating unit 54 calculates a reference vehicle body slip angle ?z_d, etc. by using a dynamic characteristic model. The vehicle motion control apparatus also includes a first anti-spin target yaw moment FB unit 68 which calculates a first anti-spin•target yaw moment Mc1_asp based on the vehicle body actual slip angle ?z_act and a second anti-spin target yaw moment FB unit 82 which calculates a second anti-spin•target yaw moment Mc2_asp based on a lateral acceleration Gs, a vehicle speed Vact and an actual yaw rate ?act.Type: GrantFiled: March 4, 2011Date of Patent: January 15, 2013Assignee: Honda Motor Co., Ltd.Inventors: Ryoji Mori, Yuuji Sakaki, Noriaki Suzuki, Teppei Komori, Hisanori Yanagida
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Patent number: 8352122Abstract: An engine control apparatus that effectively suppresses a rise in rotation number of an engine in a jump of a vehicle. An engine control apparatus includes an acceleration detecting device for detecting an acceleration component of gravity acceleration in a perpendicular direction of the vehicle body based on a signal inputted from an acceleration sensor, and a control circuit for judging whether the vehicle has jumped or not based on the acceleration component to be detected. The control circuit suppresses a rise in rotation number of the engine when the vehicle is judged to have jumped.Type: GrantFiled: December 10, 2007Date of Patent: January 8, 2013Assignee: Yamaha Hatsudoki Kabushiki KaishaInventor: Takahiko Hasegawa
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Patent number: 8346439Abstract: A system and method of activating a restraint system of a vehicle is described. The method includes generating a vehicle speed signal that represents a longitudinal speed of a vehicle, generating a lateral acceleration signal that represents a lateral acceleration of the vehicle, filtering the lateral acceleration signal to generate a filtered lateral acceleration signal, comparing the filtered lateral acceleration signal to a predetermined lateral acceleration enable threshold, estimating a lateral speed of the vehicle based on the vehicle speed signal when the filtered lateral acceleration exceeds the predetermined lateral acceleration enable threshold, and activating a restraint system of the vehicle based in part on the estimated lateral velocity.Type: GrantFiled: September 24, 2009Date of Patent: January 1, 2013Assignee: Continental Teves, Inc.Inventors: Robert Andres, Patrick Messi, Eric Mertz, Holger Faisst
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Publication number: 20120323445Abstract: In a motion control system for a vehicle including control means for controlling a yaw moment of the vehicle; first detection means for detecting a longitudinal velocity (V) of the vehicle; second detection means for detecting a lateral jerk (Gy_dot) of the vehicle; and third detection means for detecting a yaw angular acceleration (r_dot) of the vehicle, the yaw moment of the vehicle is controlled by the control means so that a difference between the yaw angular acceleration (r_dot) detected by the third detection means and a value (Gy_dot/V) obtained by the lateral jerk (Gy_dot) of the vehicle detected by the second detection means by the longitudinal velocity (V) detected by the first detection means becomes small.Type: ApplicationFiled: July 2, 2012Publication date: December 20, 2012Applicant: Hitachi, Ltd.Inventors: Makoto YAMAKADO, Shinya IMURA, Masato ABE
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Publication number: 20120310478Abstract: A vehicle comprises at least one steering wheel, at least two other wheels, control means suitable for being operated by a driver to steer the steering wheel, a frame supported by said wheels and tiltable with respect to the ground when the vehicle steers and first actuating means to control the tilting position of said frame. In particular, vehicle comprises a decoupling device to decouple the angular position of control means to the angular position of steering wheel and a control unit configured to activate first actuating means when control means are operated by the driver before said steering wheel substantially changes its angular position at least when said vehicle turns running above a given speed threshold.Type: ApplicationFiled: November 18, 2009Publication date: December 6, 2012Inventors: Stefano Carabelli, Pietro Macchi
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Publication number: 20120310479Abstract: Disclosed is a damping force control device for a vehicle that controls the damping coefficient of a damping force generation device on the basis of a final target control amount that is based on the target control amount for attitude control, which suppresses changes in the vehicle body attitude in at least the rolling direction, and the target control amount for riding comfort control, which increases riding comfort with regards to vehicle body vibrations in at least the rolling direction. The target control amount for riding comfort control is a control amount calculated as the total of a fixed basic control amount and a variable control amount.Type: ApplicationFiled: February 17, 2010Publication date: December 6, 2012Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yanqing Liu, Yuichi Mizuta, Motohiko Honma, Jin Hozumi, Masaaki Tabata
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Patent number: 8326488Abstract: A height controlling apparatus for controlling at least one actual height as a relative position of (a) a body of a vehicle and (b) at least one wheel of the vehicle relative to each other, the apparatus including at least one height controlling actuator which changes the at least one actual height; and an actuator control device which controls the at least one height controlling actuator so that the at least one actual height approaches at least one target height.Type: GrantFiled: February 12, 2010Date of Patent: December 4, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventors: Toshio Onuma, Masaaki Tabata, Takenari Yamaguchi, Masaki Kanatani, Atsushi Mizuta, Hideki Ohashi, Koutaro Okimura
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Patent number: 8326495Abstract: In a regulating system and method of regulating the chassis of a motor vehicle, sensor data which are present for regulating the suspension and the damping of a vehicle body vehicle and describe the suspension state are forwarded to the regulating module of an antilock brake system. A state of the motor vehicle with regard to a brow situation can be determined from the sensor data. The sensor data or the state with regard to the brow situation are/is taken into consideration in the regulating module of the antilock brake system when determining control signals for regulating the brake pressure in brake apparatuses which are assigned to the wheels, in particular in the brake cylinders. This increases the driving safety considerably when driving over a brow and immediately after driving over a brow and increases the efficiency and reliability of the antilock brake system substantially in corresponding driving situations.Type: GrantFiled: December 1, 2008Date of Patent: December 4, 2012Assignee: Dr. Ing. H.C. F. Porsche AktiengesellschaftInventor: Christian Steinle
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Patent number: 8326487Abstract: A method for estimating the normal force at a wheel of a vehicle and the vertical acceleration of the vehicle that has particular application for ride and stability control of the vehicle. The method includes obtaining a suspension displacement value from at least one of a plurality of suspension displacement sensors mounted on the vehicle and estimating a spring force acting on a spring of a suspension element of the vehicle, a damper force acting on a damper of the suspension element of the vehicle, and a force acting at a center of a wheel. The method further includes determining a normal force at the wheel of the vehicle and a vertical acceleration of the vehicle based on the spring force, the damper force and the force at the center of the wheel of the vehicle.Type: GrantFiled: November 21, 2008Date of Patent: December 4, 2012Assignee: GM Global Technology Operations LLCInventors: Nikolai K. Moschuk, Flavio Nardi, Jihan Ryu, Kevin A. O'Dea
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Patent number: 8322728Abstract: The present invention provides a suspension control apparatus requiring a reduced number of sensors. A pitch rate estimating unit 21 calculates a pitch rate used for creating a control instruction value, with use of a wheel-speed time-rate-of change obtained based on wheel speeds vcFL and vcFR detected by wheel speed sensors 7FL and 7FR, and an estimated forward/backward acceleration aes calculated by a forward/backward acceleration estimating unit 20.Type: GrantFiled: September 24, 2008Date of Patent: December 4, 2012Assignee: Hitachi, Ltd.Inventors: Ryusuke Hirao, Takahide Kobayashi, Nobushige Wakamatsu
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Patent number: 8321088Abstract: A method of controlling a vehicle includes determining a lateral tire force, a front lateral tire force, a rear lateral tire force, and determining a linear sideslip angle from the front lateral tire force and the rear lateral tire force. The method further includes determining a linear lateral velocity in response to the linear sideslip angle and controlling the vehicle in response to the linear sideslip angle.Type: GrantFiled: August 30, 2006Date of Patent: November 27, 2012Assignee: Ford Global TechnologiesInventors: Todd Brown, Joseph C. Meyers, Jianbo Lu
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Patent number: 8321089Abstract: The vehicle motion control device obtains a physical quantity representing a state of a motion of a vehicle in a direction of a lateral overturn. When the obtained physical quantity is larger than or equal to a motion state threshold and the vehicle motion control device is thereby in an anti-lateral overturn, the vehicle motion control device determines the target slip ratio at a present calculation period based on a largest value of the slip ratio corresponding, according to the predetermined relation between the physical quantity and the slip ratio, to the physical quantity obtained during a time range between the present calculation period and a past time instance when the vehicle motion control device enters the anti-lateral overturn mode.Type: GrantFiled: June 24, 2010Date of Patent: November 27, 2012Assignee: Advics Co., Ltd.Inventor: Toshihisa Kato
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Publication number: 20120296521Abstract: The invention relates to a control system for a motor vehicle, especially for a commercial vehicle that has a box body supportable on a chassis, with at least one detection means generating detection data for detecting the road profile in front of the vehicle in the direction of travel and a control device for controlling at least one controllable spring and/or damper unit depending on the detected data, wherein the at least one spring and/or damper unit for suspension and damping of the box body in the direction of a vertical axis of the vehicle can be connected to the box body and the chassis.Type: ApplicationFiled: May 17, 2012Publication date: November 22, 2012Inventors: Bodo Hanisch, Martin Schumacher, Georg Hoppe
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Patent number: 8315765Abstract: In a method for reducing the rollover risk in vehicles, at least one state variable which characterizes the transverse dynamics of the vehicle is ascertained and is used as the basis for an intervention into the steering system and the braking system which stabilizes the vehicle. A multivariable control is carried out in which two control loops are superimposed, the first control loop being based on control of the yaw rate and the second control loop being based on control of the transverse acceleration. The steering system as well as the braking system may be adjusted via the first and second control loops.Type: GrantFiled: September 24, 2008Date of Patent: November 20, 2012Assignee: Robert Bosch GmbHInventors: Manfred Gerdes, Frank Niewels, Sylvia Futterer, Peter Ziegler
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Patent number: 8311705Abstract: A Constant Force Control methodology and system utilizing integrated sensors and unique control algorithms to determine required applied force to mitigate shock events in an adaptive energy absorption system, typically comprising of a spring and an adjustable energy absorber or damper element. By utilizing an expected acceleration profile and event duration for an anticipated shock event an acceleration amplitude can be determined from a measure impact velocity. From this and a measured payload mass a system controller can determine the force necessary to be applied by the energy absorber in order to stop the payload over the full desired length of the available energy absorber stroke in order to minimize the forces experienced by the payload.Type: GrantFiled: August 30, 2010Date of Patent: November 13, 2012Assignees: Techno-Sciences, Inc., University of MarylandInventors: Gang Wang, Norman Wereley, Gregory Hiemenz, Young-Tai Choi
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Patent number: 8311706Abstract: A vehicle includes a control system that is used to control a vehicle system. The control system determines a roll condition in response to a yaw rate sensor and a pitch rate sensor without having to use a roll rate sensor. A relative roll angle, relative pitch angle, global roll angle, and global pitch angle may also be determined. A safety system may be controlled in response to the roll condition, roll angle, or the pitch angles individually or in combination.Type: GrantFiled: August 6, 2009Date of Patent: November 13, 2012Assignee: Ford Global TechnologiesInventors: Jianbo Lu, Jeffrey Rupp
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Patent number: 8306697Abstract: An integrated stability control system using the signals from an integrated sensing system for an automotive vehicle includes a plurality of sensors sensing the dynamic conditions of the vehicle. The sensors include an IMU sensor cluster, a steering angle sensor, wheel speed sensors, any other sensors required by subsystem controls. The signals used in the integrated stability controls include the sensor signals; the roll and pitch attitudes of the vehicle body with respect to the average road surface; the road surface mu estimation; the desired sideslip angle and desired yaw rate from a four-wheel reference vehicle model; the actual vehicle body sideslip angle projected on the moving road plane; and the global attitudes. The demand yaw moment used to counteract the undesired vehicle lateral motions (under-steer or over-steer or excessive side sliding motion) are computed from the above-mentioned variables.Type: GrantFiled: February 7, 2011Date of Patent: November 6, 2012Assignee: Ford Global TechnologiesInventors: Jianbo Lu, Todd Brown
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Patent number: 8306695Abstract: A vehicle for transporting a wind turbine blade. The vehicle comprises a blade connection device for connecting a first end of the blade to the vehicle, wherein the blade connection device comprise a tilting device for elevating an opposite end of the blade and wherein a tip end of the blade is orientated in a forward direction of the vehicle. A control system for controlling the tilting device of a vehicle and a method for transporting a wind turbine blade are also disclosed.Type: GrantFiled: June 20, 2007Date of Patent: November 6, 2012Assignee: Vestas Wind Systems A/SInventor: Gunnar Kamp Storgaard Pedersen
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Patent number: 8306696Abstract: A method and system for positioning a vehicle chassis in approximate alignment with a predetermined datum are provided. The vehicle includes a first longitudinal end adapted to be pivotally connected to a substantially fixed point and a second longitudinal end including at least one axle and an operatively associated two-corner fluid suspension system. According to the method, the fluid suspension system controls the alignment of the vehicle chassis to be aligned with an artificial horizon represented as the predetermined datum.Type: GrantFiled: October 8, 2009Date of Patent: November 6, 2012Assignee: Driveright Holdings, Ltd.Inventors: Gregory A. Holbrook, Joseph A. Bounds
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Publication number: 20120277953Abstract: 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: ApplicationFiled: April 26, 2012Publication date: November 1, 2012Inventors: Sergio M. Savaresi, Cristiano Spelta, Diego Delvecchio, Gabriele Bonaccorso, Fabio Ghirardo, Sebastiano Campo
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Patent number: 8296009Abstract: A suspension controller for controlling, based on a value detected by at least one sensor which is provided in a vehicle and which is configured to detect a detected portion, a suspension provided for a wheel of the vehicle which is located on a rear side of the detected portion and which is distant from the detected portion by a longitudinal distance in a longitudinal direction of the vehicle, such that the suspension works in accordance with a control command value that is prepared based on the value detected by the at least one sensor. The suspension controller includes a gain determiner configured to determine a gain, for controlling the suspension based on the determined gain. The gain determiner is configured to determine the gain such that the determined gain is smaller when a previewable time is shorter than a threshold length of time, than when the previewable time is not shorter than the threshold length of time.Type: GrantFiled: November 7, 2008Date of Patent: October 23, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventor: Hidenori Kajino
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Patent number: 8296010Abstract: A suspension control apparatus enabling a driver to obtain an excellent driving feeling. The suspension control apparatus controls an actuator disposed between a vehicle body and a wheel of a vehicle. The suspension control apparatus includes a lateral acceleration detector operable to detect a lateral acceleration, a lateral jerk detector operable to detect a lateral jerk, and a suspension controller operable to control the actuator to change a pitch of the vehicle based the detected lateral acceleration and lateral jerk.Type: GrantFiled: April 22, 2010Date of Patent: October 23, 2012Assignee: Hitachi Automotive Systems, Ltd.Inventors: Ryusuke Hirao, Masaaki Uchiyama, Nobuyuki Ichimaru, Takahide Kobayashi
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Publication number: 20120265401Abstract: Methods, systems, and computer-readable medium containing instructions for controlling a vehicle. One system includes a plurality of sensors, an occupant restraint system, and a controller. The plurality of sensors are configured to sense operating parameters of the vehicle, and the occupant restraint system is configured to sense data about cargo located in the vehicle. The controller is configured to obtain the data about the cargo located in the vehicle, determine a control adjustment to account for an impact of the cargo on the vehicle's center of gravity based on the data about the cargo, and control the vehicle based on the control adjustment.Type: ApplicationFiled: April 12, 2011Publication date: October 18, 2012Applicant: ROBERT BOSCH GMBHInventors: Frank-Juergen Stuetzler, Jason Trombley
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Publication number: 20120265402Abstract: Improved methods of controlling the stability of a vehicle are provided via the cooperative operation of vehicle stability control systems such as an Active Yaw Control system, Antilock Braking System, and Traction Control System. These methods use recognition of road surface information including the road friction coefficient (mu), wheel slippage, and yaw deviations. The methods then modify the settings of the active damping system and/or the distribution of drive torque, as necessary, to increase/reduce damping in the suspension and shift torque application at the wheels, thus preventing a significant shift of load in the vehicle and/or improving vehicle drivability and comfort. The adjustments of the active damping system or torque distribution temporarily override any characteristics that were pre-selected by the driver.Type: ApplicationFiled: June 21, 2012Publication date: October 18, 2012Applicant: HONDA MOTOR CO., LTD.Inventors: James W. Post, II, Xiaodi Kang, William Monsma