With Yaw Control Patents (Class 303/146)
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Patent number: 12233842Abstract: A vehicle behavior control method is suitable for a vehicle behavior control device. The vehicle behavior control device includes: a lateral acceleration sensor, detecting lateral acceleration occurring in a vehicle body; a wheel speed sensor, detecting a wheel speed of a wheel; a steering angle sensor, detecting a steering angle of the wheel; a steering angle lateral acceleration calculation unit, calculating steering angle lateral acceleration from the wheel speed and the steering angle; and a yaw moment control unit, applying yaw moment to the vehicle body. In the vehicle behavior control method, when the lateral acceleration and the steering angle lateral acceleration meet a predetermined condition, a yaw moment directed inward in a turning direction of the vehicle body is applied by the yaw moment control unit.Type: GrantFiled: January 4, 2024Date of Patent: February 25, 2025Assignee: Honda Motor Co., Ltd.Inventors: Ryo Koyama, Masayuki Kikuchi, Shigeru Doi, Naoto Okubo
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Patent number: 12227165Abstract: A vehicle control device, a vehicle control method, and a vehicle control system according to the present invention perform feedback control to reduce difference in lateral direction or difference in turning direction between an own vehicle and a travel target, so as to acquire a first steering angle control command for increasing a steering angle control amount as the velocity of the own vehicle decreases, acquire a second steering angle control command for decreasing the steering angle control amount with respect to the velocity, compared with a magnitude of the steering angle control amount with respect to the velocity obtained by the first steering angle control command, output the first steering angle control command when the velocity is greater than a predetermined threshold, and output the second steering angle control command when the velocity is equal to, or less than, the predetermined threshold.Type: GrantFiled: July 20, 2021Date of Patent: February 18, 2025Assignee: Hitachi Astemo, Ltd.Inventors: Hiroki Sugawara, Kentaro Ueno, Daisuke Noma
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Patent number: 12179731Abstract: A method for determining a brake pressure change for a wheel of a vehicle to optimize a braking operation. The method includes: supplying a current wheel status of the wheel, wherein the wheel status includes a plurality of status parameters; determining at least one status parameter whose value deviates from a target wheel status; determining a change direction of the brake pressure change depending on a deviation of the at least one status parameter from the target wheel status; supplying a brake pressure characteristic map for determining a value of the brake pressure change, wherein the brake pressure characteristic map associates a brake pressure change with the plurality of status parameters and is specific to the determined change direction of the brake pressure change and status parameter change; determining a value of the brake pressure change using the current wheel status and the supplied brake pressure characteristic map.Type: GrantFiled: March 17, 2021Date of Patent: December 31, 2024Assignee: ROBERT BOSCH GMBHInventor: Rami Scharbak
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Patent number: 12157526Abstract: An apparatus including a command front wheel angle acquirer to acquire a command front wheel angle, a four-wheel target angle calculator to calculate a turning radius, which is a distance from a center of rotation when a vehicle is turning to a center of gravity in a Bicycle model, using the model in a state in which a front wheel angle of the model is simulated as the command front wheel angle, to calculate a rotation angle at the center of gravity of the model on the basis of a ratio of rotation angles of front and rear wheels of the vehicle calculated from a state parameter of the vehicle, and to calculate a target angle of each of the four wheels on the basis of the turning radius and the rotation angle, and a controller to independently control steering of the four wheels using the calculated each target angle.Type: GrantFiled: April 4, 2022Date of Patent: December 3, 2024Assignee: Hyundai Mobis Co., Ltd.Inventor: Sung Bem Yoo
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Patent number: 12134394Abstract: System, methods, and other embodiments described herein relate to emulating vehicle dynamics. In one embodiment, a method for emulating vehicle dynamics in a vehicle having a plurality of wheels and equipped with all-wheel steering, includes receiving emulation settings that indicate one or more environment parameters and/or vehicle parameters, detecting driver inputs including at least steering input and throttle input, executing a simulation model that receives the driver inputs and emulation settings, simulates the vehicle operating based on the driver inputs and the emulation settings, and outputs one or more simulated states of the vehicle based on the simulated operation of the vehicle, determining one or more actuation commands for each wheel of the vehicle to cause the vehicle to emulate the one or more simulated states, and executing the one or more actuation commands, wherein the actuation commands include at least wheel angle commands and torque commands.Type: GrantFiled: August 10, 2020Date of Patent: November 5, 2024Assignee: Toyota Research Institute, Inc.Inventors: Avinash Balachandran, Yan Ming Jonathan Goh
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Patent number: 12128951Abstract: Provided is a driver assistance apparatus, including: a camera mounted on a vehicle and configured to have a field of view facing a front of the vehicle and acquire image data; and a controller including a processor configured to process the image data, wherein the controller is configured to calculate a target heading angle and a target lateral position of the vehicle based on a predetermined yaw rate pattern, and when a driver operates a steering device that steers the vehicle to avoid a collision of the vehicle, control the steering device to assist in steering for avoiding the collision of the vehicle, based on at least one of the image data, the target heading angle or the target lateral position.Type: GrantFiled: December 28, 2021Date of Patent: October 29, 2024Assignee: HL KLEMOVE CORP.Inventor: Mingyu Kim
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Patent number: 12115996Abstract: A system for managing chassis and driveline actuators of a motor vehicle includes a control module executing program code portions that: cause sensors to obtain vehicle state information, receive a driver input and generate a desired dynamic output based on the driver input and the vehicle state information, and then estimate actuator actions based on the vehicle state information, generate one or more control action constraints based on the vehicle state information and estimated actuator actions, generate a reference control action based on the vehicle state information, the estimated actions of the one or more actuators and the control action constraints, and integrate the vehicle state information, the estimated actuator actions, desired dynamic output, reference control action and the control action constraints to generate an optimal control action that falls within a range of predefined actuator capacities and ensures driver control of the vehicle.Type: GrantFiled: November 3, 2021Date of Patent: October 15, 2024Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Seyedeh Asal Nahidi, SeyedAlireza Kasaiezadeh Mahabadi, Ruixing Long, Yubiao Zhang, James H. Holbrook, Ehsan Asadi, Reza Hajiloo, Shamim Mashrouteh
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Patent number: 12071186Abstract: Disclosed is a steering wheel torque feedback optimization control method for a differential braking system, including: estimating a tire lateral force of a vehicle; predicting a state of the vehicle at a next moment under a non-differential torque condition; predicting a state of the vehicle at the next moment under a differential torque condition with an additional yaw moment; calculating tire lateral forces at the next moment under the differential torque condition and the non-differential torque condition separately based on the predicted states of the vehicle at the next moment under the differential torque condition and the non-differential torque condition, and obtaining a predicted one-step change value of a front tire lateral force by performing subtraction; performing integral calculation based on time, and obtaining a continuous change amount of the tire lateral force; and correcting a desired moment of a steering power motor.Type: GrantFiled: December 13, 2023Date of Patent: August 27, 2024Assignee: TONGJI UNIVERSITYInventors: Hong Chen, Lin Zhang, Rongjie Yu, Qiang Meng, Jinlong Hong
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Patent number: 12071007Abstract: A system for controlling movement of a vehicle includes a user input device and computing system. The user input device dynamically controls a settings or balance of driving dynamics in a vehicle, and the user input device is configured to receive a manual input from a user. The computing system controls the settings of the vehicle driving dynamics and/or balance of the vehicle, the computing system is in data communication with the user input device and configured to change the driving dynamics balance proportionately to the manual input upon receiving an input command based on the manual input from the user input device.Type: GrantFiled: February 11, 2022Date of Patent: August 27, 2024Assignee: Akrus Inc.Inventor: Benjamin Houston Gully
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Patent number: 12065169Abstract: Provided is an automatic driving system based on a model predictive control, the automatic driving system where, in an event of a failure of an actuator, identification between a real vehicle and a vehicle model is simplified. Based on information regarding the failure of the actuator, the automatic driving system updates a spot in the vehicle model, the spot corresponding to the spot of failure detected, to a fixed value, and causes an actuator control device for the actuator, where the failure is detected, to fix a command value that is overwritten in accordance with a state of the actuator. With this configuration, the identification between the real vehicle and the vehicle model is simplified.Type: GrantFiled: November 27, 2019Date of Patent: August 20, 2024Assignee: HITACHI ASTEMO, LTD.Inventors: Yuki Tanaka, Tatsuya Horiguchi, Teppei Hirotsu, Hideyuki Sakamoto
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Patent number: 12060126Abstract: The present disclosure relates to a method and system for measuring and calibrating steering parameters of a vehicle, a medium and an autonomous vehicle. The method includes: calculating a steering angle of a front wheel of the vehicle corresponding to each sampling moment at a plurality of consecutive sampling moments respectively. The calculation process at each sampling moment includes: calculating a first calculated value based on a yaw velocity of the vehicle, a vehicle velocity and a wheelbase; calculating a second calculated value based on a vehicle velocity, a lateral acceleration of the vehicle and the wheelbase; calculating a third calculated value based on a rotating angle of the steering wheel and a steering gear ratio; and calculating a steering angle of the front wheel at a current sampling moment based on the first, second and third calculated value of the steering angle of the front wheel.Type: GrantFiled: March 24, 2022Date of Patent: August 13, 2024Assignees: Jiangsu XCMG Construction Machinery Research Institute Ltd., XCMG Agricultural Equipment Technology Co., Ltd.Inventors: Shuai Zuo, Liang Gao, Houxue Ma, Ming Chen
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Patent number: 12048270Abstract: Described herein are systems, methods, and other techniques for controlling a velocity of an implement-equipped machine. An actual position of the implement-equipped machine is estimated based on sensor data captured using the machine's sensors. A cross track error between a target position and the actual position is calculated. An actual cross track error metric is calculated based on the cross track error. The actual cross track error metric is compared to a target cross track error metric to determine a velocity adjustment, where the velocity adjustment is determined so as to reduce a difference between the actual cross track error metric and the target cross track error metric. The velocity of the implement-equipped machine is adjusted by the velocity adjustment.Type: GrantFiled: March 25, 2021Date of Patent: July 30, 2024Assignee: PTx Trimble LLCInventors: Jason Hill, Mark Gibson
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Patent number: 11993258Abstract: A vehicle control apparatus executes a collision avoiding control of avoiding collision of an own vehicle with an object when a predetermined execution condition becomes satisfied. The collision avoiding control includes a steering control of changing a steering angle of the own vehicle and a braking force control of applying braking force to the own vehicle so as to realize a target deceleration. The vehicle control apparatus terminates the steering control and decreases the target deceleration at a first rate to terminate the braking force control when a predetermined steering termination condition that the collision has been avoided, becomes satisfied. The vehicle control apparatus terminates the steering control and decreases the target deceleration at a second rate to terminate the braking force control when a predetermined cancelation condition that a driver carries out a driving maneuver, becomes satisfied. The second rate is greater than the first rate.Type: GrantFiled: January 18, 2022Date of Patent: May 28, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Sho Hashimoto, Nobuaki Fukuchi, Yumi Shimanaka
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Patent number: 11945339Abstract: An energy management system for a towed vehicle includes an energy harvesting system for harvesting electrical energy from the energy of the towed vehicle, an energy storage system for storing the harvested electrical energy, and a computer controller for controlling the release of the stored electrical energy to one or more components of the towed vehicle for operating the towed vehicle.Type: GrantFiled: September 24, 2018Date of Patent: April 2, 2024Inventors: Andrew Huett, Senoll Kaptan
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Patent number: 11926187Abstract: Technologies and techniques for producing a yawing movement in order to control the driving dynamics of a vehicle. A target yawing movement of the vehicle is determined from a target yaw rate preset by a preset steering angle, such that the vehicle can pass through the preset steering angle at the current vehicle speed, and the target yawing movement being divided into a steering yawing movement produced by the steering system, a rolling yawing movement and a drive yawing movement, wherein the rolling yawing movement is divided into individual rolling yawing movements of the individual wheels, which can be variably set.Type: GrantFiled: February 25, 2019Date of Patent: March 12, 2024Assignee: Volkswagen AktiengesellschaftInventor: Nando Laumanns
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Patent number: 11912254Abstract: A method for automatically emergency stopping a motor vehicle from a starting speed to a standstill by a braking device of the motor vehicle is provided. The braking device is actuated to carry out a delay profile with at least two delay phases. During a delay increase phase the delay until a threshold delay is increased and during a delay decrease phase, lasting until standstill, the delay is reduced to zero. The temporal courses of the delay are determined during the delay increase and the delay decrease at least sectionally as nth degree polynomials, where n>0, depending on the starting speed, in such a way that a stopping duration, which represents a time duration necessary for emergency stopping, does not fall below a predetermined minimum stopping duration and a distance covered during the stopping duration does not exceed a predetermined maximum stopping distance.Type: GrantFiled: March 17, 2020Date of Patent: February 27, 2024Assignee: DAIMLER TRUCK AGInventors: Tobias Aurand, Markus Zimmer, Regina Hartfiel
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Patent number: 11897560Abstract: The present disclosure provides a road impact simulating apparatus of a steer-by-wire system, the apparatus comprising: a Signal processor for determining a wheel speed difference value between wheels, and determining a lateral acceleration difference value between an estimated lateral acceleration and a sensed lateral acceleration of a vehicle; an Impact determinator for determining whether there is a road impact based on the wheel speed difference value; and a Torque calculator for determining a reaction force torque according to the road impact based on the lateral acceleration difference value if it is determined as the road impact.Type: GrantFiled: June 4, 2020Date of Patent: February 13, 2024Assignee: HL MANDO CORPORATIONInventor: Seung Gi Min
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Patent number: 11891047Abstract: A method for having a vehicle follow a desired curvature path is provided. The vehicle has at least one differential with a differential lock connected to at least one driven wheel axle of the vehicle. The method includes providing information regarding state of the differential lock, the state being either that the differential lock is activated or unlocked, and when the differential lock is activated, calculating a yaw moment of the vehicle caused by the differential lock; and compensating for a deviation from the desired curvature path caused by the yaw moment such that a resulting steering angle is equal to or less than a maximum allowed steering angle of the vehicle. The compensation is a feed forward compensation.Type: GrantFiled: October 22, 2018Date of Patent: February 6, 2024Assignee: VOLVO TRUCK CORPORATIONInventors: Leo Laine, Karthik Ramanan Vaidyanathan
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Patent number: 11845415Abstract: There is provided an automatically guided vehicle (AGV), which is configured to detect if a payload mass differs significantly from a preset payload mass towed and/or carried by the vehicle, and if a payload mass different from the preset payload is detected, the control system of the vehicle is automatically updated to adjust either: i) the speed of the vehicle based on preset safety brake distance information associated with the detected different payload mass; or ii) increase the safety zone or switch to a safer safety zone in order to avoid collision with any obstacles.Type: GrantFiled: September 6, 2019Date of Patent: December 19, 2023Assignee: MOBILE INDUSTRIAL ROBOTS A/SInventors: Niels Jul Jacobsen, Soeren Nielsen
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Patent number: 11834028Abstract: A vehicle gear-shifting control apparatus is equipped with an engine, a motor, an automatic transmission, a friction brake system, and a controller which executes, during deceleration during which the friction brake system is distributing a braking force to front and rear wheels, a regeneration control of imparting a regenerative braking torque to the rear wheels and a gear-shifting control of changing a shift stage of the automatic transmission by outputting a gear-shifting signal in accordance with the rotation speed of an input shaft to the transmission. When the controller determines an oversteered state of the vehicle during the regeneration control, the controller increases an input torque of the input shaft so that the regenerative braking torque decreases while maintaining the regeneration operation of the motor and, at the same time, interrupts motive power transmission between the input shaft and an output shaft of the transmission.Type: GrantFiled: March 24, 2023Date of Patent: December 5, 2023Assignee: Mazda Motor CorporationInventors: Makoto Yamada, Tooru Uematsu, Atsushi Yamasaki
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Patent number: 11738813Abstract: An endless vehicle track includes a body having an outer surface and an inner surface. The outer surface includes a carcass and a series of ground engaging profiles longitudinally spaced along the outer surface. The inner surface includes a wheel path and a series of longitudinally spaced guide-drive lugs. One or more of the series of ground engaging profiles, the series of longitudinally spaced guide-drive lugs, the carcass and the wheel path comprise a urethane material.Type: GrantFiled: October 18, 2019Date of Patent: August 29, 2023Assignee: Loc Performance Products, LLCInventors: Matthew A. Linn, David Michael Burtchin
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Patent number: 11733707Abstract: Systems and methods for determining the location of a vehicle are disclosed. In one embodiment, a method for localizing a vehicle includes driving over a first road segment, identifying by a first localization system a set of candidate road segments, obtaining vertical motion data while driving over the first road segment, comparing the obtained vertical motion data to reference vertical motion data associated with at least one candidate road segment, and identifying, based on the comparison, a location of the vehicle. The use of such localization methods and systems in coordination with various advanced vehicle systems such as, for example, active suspension systems or autonomous driving features, is contemplated.Type: GrantFiled: September 1, 2020Date of Patent: August 22, 2023Assignee: ClearMotion, Inc.Inventors: Vijayaraghavan Sridhar, John Parker Eisenmann, Yu Jiang, David Francis Weatherwax
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Patent number: 11679804Abstract: A limiting system for constraining a commanded steering angle for a vehicle including an electric power steering (EPS) system includes a controller in electronic communication with at least one other system of the vehicle. The controller executes instructions to receive a plurality of trajectory planning inputs that are each expressed as an array including a plurality of values, where the plurality of trajectory planning inputs includes a trajectory velocity array, a trajectory acceleration array, and a trajectory curvature array. The controller also executes instructions to determine a maximum rate of steering angle change based on the corresponding ideal rate of change of the commanded steering angle and the maximum rate change allowed by the EPS system.Type: GrantFiled: June 1, 2021Date of Patent: June 20, 2023Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Avshalom Suissa, Audrey Devin Porter
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Patent number: 11618422Abstract: An all terrain vehicle may include a braking system comprising a hydraulic and electric controller unit (HECU) operably coupled to the plurality of ground-engaging members. The HECU may receive sensor information from the one or more sensors and determine whether the all terrain vehicle is encountering a wheel locking event based on the sensor information. The wheel locking event may indicate the plurality of ground-engaging members are unable to turn. The HECU also may determine whether the all terrain vehicle is encountering a turning event based on the sensor information and operate in an HECU intervention mode based on an indication that the all terrain vehicle is encountering the wheel locking event and the turning event. The HECU intervention mode permits the HECU to control the plurality of ground-engaging members based on steering input.Type: GrantFiled: January 24, 2022Date of Patent: April 4, 2023Assignee: Polaris Industries Inc.Inventors: Alex R. Scheuerell, Jonathon P. Graus
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Patent number: 11618440Abstract: Provided are methods for controlling ESA system of a vehicle and an ESA system. The method includes: generating a trajectory to avoid an obstacle in front of the vehicle; obtaining a target yaw rate and yaw moment according to the trajectory; allocating the target yaw moment to one or more chassis actuators; controlling the one or more chassis actuators according to allocated yaw moments. The cooperation of actuators is implemented for more safe evasion.Type: GrantFiled: November 9, 2020Date of Patent: April 4, 2023Assignee: GUANGZHOU AUTOMOBILE GROUP CO., LTD.Inventors: Kilsoo Kim, Xiaoyong Wang
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Patent number: 11597381Abstract: The present invention provides a driving assist apparatus, a driving assist method, and a driving assist system capable of realizing driving assist in consideration of a delay in a driver's operation regardless of a configuration of a vehicle. A driving assist apparatus includes a standard running route acquisition portion configured to acquire a standard running route calculated based on curve information ahead of a vehicle that is acquired by an external world recognition portion, and an actuator control output portion configured to acquire a standard vehicle motion amount when the vehicle runs the standard running route, calculate an instruction that guides a motion amount of the vehicle toward the standard vehicle motion amount based on the standard vehicle motion amount and a current vehicle motion amount of the vehicle, and output the instruction to an actuator portion configured to provide at least one of a curving force and a braking force to the vehicle.Type: GrantFiled: August 23, 2018Date of Patent: March 7, 2023Assignee: Hitachi Astemo, Ltd.Inventor: Satoshi Kashiwamura
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Patent number: 11535215Abstract: A device 10 for controlling a vehicle 1 includes: a sensor 20 configured to detect a rudder angle; a calculation part 40a configured to calculate a target braking force for making a pitch angle equal to a target pitch angle, the target braking force increasing as the rudder angle increases; a determination part 40b configured to determine whether a steering action is in a steady state; a correction part 40c configured to correct the target braking force to be reduced by an offset amount when it is determined that the steering action is in a steady state; and an actuator 30 configured to apply the corrected target braking force to the vehicle.Type: GrantFiled: July 12, 2021Date of Patent: December 27, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Manabu Nagasaka
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Patent number: 11531115Abstract: A tracking problem detection system for a machine may include tracking diagnostic circuitry including one or more tracking diagnostic processors configured to receive a location signal indicative of a location of a machine and a path signal indicative of a path location associated with at least a portion of a path for the machine to follow while maneuvering. The tracking diagnostic processors may also be configured to determine a tracking difference between the path location and the location of the machine, and determine a frequency of a signal associated with the tracking difference and/or a frequency of a signal associated with a yaw rate associated with the maneuvering. The tracking diagnostic processors may also be configured to detect, based at least in part on the frequencies of the signals associated with the tracking difference and/or the yaw rate, a tracking problem associated with maneuvering the machine.Type: GrantFiled: February 12, 2020Date of Patent: December 20, 2022Assignee: Caterpillar Global Mining LLCInventors: Manish Sharma, Sagar Chowdhury, Philip Wallstedt
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Patent number: 11524664Abstract: A control device is provided with a flow rate derivation part for deriving a pressure-holding-valve flow rate on the basis of a pressure command value and a previous pressure command value; a differential pressure derivation part for deriving a differential-pressure-valve differential pressure value so that the differential-pressure-valve differential pressure value increases with an increase in the difference obtained by subtracting the pressure-holding-valve flow rate from a pump-discharge flow rate; and a pressure-holding-valve processing part for performing an aperture derivation process to derive a command aperture so that the command aperture decreases with an increase in the difference obtained by subtracting the pressure command value from the sum of an pressure value and the differential-pressure-valve differential pressure value, and driving a holding pressure valve at the command aperture.Type: GrantFiled: August 28, 2018Date of Patent: December 13, 2022Assignee: ADVICS CO., LTD.Inventors: Koya Motoyama, Hiroki Saito, Masayuki Naito
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Patent number: 11511726Abstract: A method of distributing driving force of a four wheel drive (4WD) eco-friendly vehicle includes determining a first allowable range of driving force for each driving force based on determination of travel stability, determining a second allowable range of driving force for each driving wheel based on system limitations of at least one of the first driving source or the second driving source, determining a range of available driving force of the first driving wheel based on the first allowable range of driving force and the second allowable range of driving force, determining first target driving force of the first driving wheel in consideration of efficiency of the first driving source within the range of available driving force, and determining second target driving force of the second driving wheel based on the first target driving force and requested torque.Type: GrantFiled: November 5, 2020Date of Patent: November 29, 2022Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventor: Joon Young Park
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Patent number: 11427172Abstract: Methods and systems are described for controlling a vehicle braking system. A braking force is applied to the vehicle by applying friction only braking to the wheels of one axle and applying a blended braking force (including a regenerative braking force and a friction braking force) to the wheels of another axle. Using vehicle and tire modeling techniques, a set of side-slip angles is calculated that is estimated to occur if the total braking force were applied using only friction braking. A compensatory yaw moment is then determined based on differences between the estimated side-slip angles and the actual side-slip angles of the vehicle under the blended braking. The compensatory yaw moment is then applied to the vehicle to enable the vehicle to utilize regenerative braking while exhibiting the same vehicle dynamics that occur when using friction braking only.Type: GrantFiled: October 5, 2017Date of Patent: August 30, 2022Assignee: Robert Bosch GmbHInventors: Zhe Zhang, Lance Bredthauer
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Patent number: 11427197Abstract: A lane departure preventing device includes at least one electronic control unit. The at least one electronic control unit is configured to: when there is a likelihood that a vehicle will depart from a traveling lane, calculate a prevention yaw moment, and control a brake actuator such that the prevention yaw moment is applied to the vehicle; acquire a lateral acceleration; determine whether the lateral acceleration is greater than an ideal value by a predetermined value; control the brake actuator such that the braking force matches a target braking force required to apply the prevention yaw moment to the vehicle, when the lateral acceleration is not greater than the ideal value by the predetermined value; and control the brake actuator such that the braking force is less than the target braking force, when the lateral acceleration is greater than the ideal value by the predetermined value.Type: GrantFiled: July 29, 2020Date of Patent: August 30, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Akira Nagae, Ryo Inomata, Hironori Ito, Masayuki Ikeda
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Patent number: 11351990Abstract: A swerve assist to assist the driver of a transportation vehicle during an avoidance maneuver so that a collision with an obstacle is avoided. An additional steering torque for amplifying a current steering torque is applied when an avoidance maneuver of the transportation vehicle is detected. A single-wheel braking of the transportation vehicle is actuated to increase a transverse offset of the transportation vehicle.Type: GrantFiled: September 4, 2017Date of Patent: June 7, 2022Inventor: Maike Wall
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Patent number: 11254294Abstract: An all terrain vehicle may include a frame and a plurality of ground-engaging members supporting the frame. Each of the plurality of ground-engaging members may be configured to rotate about an axle. The all terrain vehicle may further include a powertrain assembly supported by the frame and a braking system (e.g., an anti-lock braking system (ABS)) including a hydraulic and electric controller unit (HECU) operably coupled to the plurality of ground-engaging members and configured to generate yaw to reduce a turning radius of the all terrain vehicle. The HECU may be configured to control brake pressure to the plurality of ground-engaging members independent of a driver input indicating a braking event.Type: GrantFiled: May 2, 2019Date of Patent: February 22, 2022Assignee: Polaris Industries Inc.Inventors: Alex R. Scheuerell, Jonathon P. Graus, Louis J. Brady
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Patent number: 11186287Abstract: A cant estimating method of estimating a cant of a travelling road of a vehicle includes a step of acquiring vehicle information including information on a speed, a lateral acceleration, a steering angle, a yaw rate, and a position of each of a plurality of vehicles including a first vehicle, a step of estimating a cant of a travelling road of the first vehicle based on the vehicle information, and a step of storing the estimated cant, in association with information on the position of the first vehicle, in a cant angle database usable by the plurality of vehicles.Type: GrantFiled: March 20, 2019Date of Patent: November 30, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Shin Sakurada
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Patent number: 11173884Abstract: The vehicle behavior control device comprises a brake control system (18) capable of applying different braking forces, respectively, to right and left road wheels of a vehicle (1). The vehicle behavior control device further comprises: a steering angle sensor (8); a vehicle speed sensor (10); a yaw rate sensor (12); and a yaw moment setting part (22) in PCM (14) configured to decide a target yaw rate of the vehicle based on a steering angle and a vehicle speed, and set, based on a change rate of a difference between an actual yaw rate and the target yaw rate, a yaw moment oriented in a direction opposite to that of the actual yaw rate of the vehicle, as a target yaw moment, whereby the brake control system can regulate the braking forces of the road wheels so as to apply the target yaw moment to the vehicle.Type: GrantFiled: December 3, 2018Date of Patent: November 16, 2021Assignee: MAZDA MOTOR CORPORATIONInventors: Osamu Sunahara, Daisuke Umetsu, Yasunori Takahara
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Patent number: 11161545Abstract: A steering control system for a commercial vehicle having braking and steering systems. The braking system brakes dissymetrically side wheels of the vehicle. The steering system steers the vehicle based on a steering signal. The steering control system includes selection and control modules. The selection module switches between first and second steering modes. The first mode indicates steering of the vehicle by turning vehicle wheels. The second mode indicates steering of the vehicle by generating a braking signal for at least one wheel providing a yaw moment applied to the vehicle. The control module generates the first signal indicating a steering demand in the first mode and a second signal indicating a steering demand in the second mode. The control module provides the first signal to the steering system and the second signal to the braking system to brake the vehicle dissymetrically to steer the vehicle with the yaw moment.Type: GrantFiled: September 8, 2017Date of Patent: November 2, 2021Assignee: KNORR-BREMSE SYSTEME FUER NUTZFAHRZEUGE GMBHInventors: Kornel Straub, Markus Klein, Levente Balogh, Jonas Leibbrand, Tamas Rozsa
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Patent number: 11148652Abstract: A method for providing a brake force in a vehicle with a hydraulic vehicle brake and an electromechanical brake device includes determining a position of a brake piston at a brake contact point on the basis of a state variable of an electric brake motor when the electromechanical brake device is released. The method further includes displacing the brake piston in a positioning operation until reaching a braking start point.Type: GrantFiled: May 20, 2016Date of Patent: October 19, 2021Assignee: Robert Bosch GmbHInventors: Frank Baehrle-Miller, Edith Mannherz, Andreas Englert, Tobias Putzer
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Patent number: 11130483Abstract: A system for controlling turning of vehicle may include a steering angle detection sensor; a front inner wheel speed detection sensor detecting a front inner wheel speed; a front outer wheel speed detection sensor detecting a front outer wheel speed; a rear outer wheel speed detection sensor detecting a rear outer wheel speed based on a turning direction; and a braking controller receiving detection signal of the steering angle detection sensor to determine that the vehicle turns, estimating the rear inner wheel speed in the turning direction based on detection signals of the front inner wheel speed detection sensor and the front outer wheel speed detection sensor and detection signal of the rear outer wheel speed detection sensor, and executing a mode for decreasing the estimated speed as compared to the rear outer wheel speed, as a control mode for reducing a minimum rotation radius at the time of turning.Type: GrantFiled: April 10, 2019Date of Patent: September 28, 2021Assignees: Hyundai Motor Company, Kia Motors CorporationInventor: Dae Suk Jung
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Patent number: 11066100Abstract: A vehicle has a trailer backup steering input apparatus, a trailer backup assist control module coupled to the a trailer backup steering input apparatus, and an electric power assist steering system coupled to the trailer backup assist control module and. The trailer backup steering input apparatus is configured for outputting a trailer path curvature signal approximating a desired curvature for a path of travel of a trailer towably coupled to the vehicle. The trailer backup assist control module is configured for determining vehicle steering information as a function of the trailer path curvature signal. The electric power assist steering system is configured for controlling steering of steered wheels of the vehicle as a function of the vehicle steering information.Type: GrantFiled: May 22, 2019Date of Patent: July 20, 2021Assignees: Ford Global Technologies, LLC, The Regents of the University of Michigan Office Tech. Transfer, University of MichiganInventors: Douglas Scott Rhode, David Dean Smit, Erick Michael Lavoie, Martin Fitzpatrick Frey, Thomas Edward Pilutti, Taehyun Shim, Matt Y. Rupp, Roger Arnold Trombley
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Patent number: 11040706Abstract: A turning behavior control apparatus that is applied to a vehicle includes front wheel suspensions and rear wheel suspensions having anti-dive and anti-lift geometries, respectively, and left and right front wheels are steered wheels. The turning behavior control apparatus includes a control unit for controlling the braking device, and the control unit is configured to control the braking device to apply a braking force to a turning inner driving wheel when a deviation between a standard yaw rate of the vehicle and an actual yaw rate exceeds a deviation reference value and a time change rate of the deviation exceeds a start reference value in a situation where the vehicle is turning without braking.Type: GrantFiled: September 24, 2019Date of Patent: June 22, 2021Assignee: Toyota Jidosha Kabushiki KaishaInventor: Takuya Shoji
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Patent number: 10946863Abstract: A wheel load estimation method of a four-wheel drive vehicle driven by a rotational driving device comprises a correlation relationship setting step for previously setting a correlation relationship between a total weight and at least one of the front wheel load and the rear wheel load by variously changing a movable load of the vehicle, a total vehicle weight computation step for calculating a current total vehicle weight from an output torque of the rotational driving device and a longitudinal acceleration of the vehicle corresponding to the output torque, and a wheel load estimation step for estimating the wheel load of at least a driving wheel from the correlation relationship and the total vehicle weight.Type: GrantFiled: August 29, 2018Date of Patent: March 16, 2021Assignee: Mazda Motor CorporationInventors: Yasumasa Imamura, Yasushi Yagi, Akihiro Tatara, Keisuke Haruta
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Patent number: 10940853Abstract: Provided is a vehicular turning control system that enables immediate stabilization of the vehicle attitude and optimum control for the vehicle turning performance. This vehicular turning control system includes a yaw moment control device, a vehicle attitude stabilization control device, and a torque limiting device. A first torque limiter of the torque limiting device limits a braking/driving torque calculated by a yaw moment controller, in accordance with the slip rate of the wheel and the angular acceleration of the wheel. A second torque limiter of the torque limiting device limits a braking/driving torque calculated by a vehicle attitude stabilization controller, in accordance with the slip rate of the wheel and the angular acceleration of the wheel. The vehicle turning performance is optimally controlled by limiting each braking/driving torque in accordance with the slip rate of the wheel and the angular acceleration of the wheel as described above.Type: GrantFiled: March 6, 2019Date of Patent: March 9, 2021Assignee: NTN CORPORATIONInventor: Yuta Suzuki
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Patent number: 10919572Abstract: Examples of techniques for controlling a vehicle based on trailer sway are disclosed. In one example implementation according to aspects of the present disclosure, a computer-implemented method includes estimating, by a processing device, an estimated articulation angle between a vehicle and a trailer coupled to the vehicle. The method further includes calculating, by the processing device, an expected articulation angle between the vehicle and the trailer. The method further includes comparing, by the processing device, the estimated articulation angle and the expected articulation angle to determine whether the trailer is experiencing trailer sway. The method further includes, responsive to determining that the trailer is experiencing sway, controlling, by the processing device, the vehicle to reduce the trailer sway.Type: GrantFiled: June 7, 2018Date of Patent: February 16, 2021Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: SeyedAlireza Kasaiezadeh Mahabadi, Jinsong Wang, Bakhtiar B. Litkouhi
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Patent number: 10919520Abstract: A control system for a vehicle includes a plurality of vehicle actuators that are operable to affect actual chassis-level accelerations, a vehicle intelligence unit that determines a motion plan, a vehicle motion control unit that determines a chassis-level motion request based on the motion plan, and a chassis control unit that determines actuator commands for the plurality of vehicle actuators based on the chassis-level motion request and actuator identity information that describes presently available actuators from the plurality of vehicle actuators.Type: GrantFiled: August 3, 2017Date of Patent: February 16, 2021Assignee: Apple Inc.Inventors: Christopher D. Gadda, Carlos Alberto De Magalhaes Massera Filho, David A. Stronks, Gabriel M. Hoffmann, Miroslav Baric, Nathaniel B. Honka, Stefan Solyom, Timothee J. Cazenave
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Patent number: 10919505Abstract: Systems and methods for dynamically distributing brake torque among a plurality of brakes of a vehicle are provided. In one example, a method includes detecting a braking distribution condition; calculating a weight distribution for the vehicle based on a longitudinal acceleration and a lateral acceleration associated with the vehicle to provide a calculated weight distribution; calculating a brake torque limit for each of the plurality of brakes based on the calculated weight distribution to provide calculated brake torque limits; calculating a target brake torque for each of the plurality of brakes based on a driver-demanded brake torque to provide target brake torques; and comparing the calculated brake torque limits with corresponding target brake torques.Type: GrantFiled: March 30, 2018Date of Patent: February 16, 2021Assignee: Veoneer-Nissin Brake Systems Japan Co., Ltd.Inventors: Long Ying, Huan Fu
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Patent number: 10836377Abstract: Disclosed herein are a vehicle control system and controlling method thereof. The vehicle control system includes a plurality of sensors configured to measure a wheel speed, a steering angle, a yaw rate, and acceleration value, and a controller estimating the state of a vehicle based on the wheel speed, the steering angle, the yaw rate, and the acceleration value and updating a front and rear wheel stiffness of the vehicle when it is determined that the vehicle is running on an asymmetric friction surface from the estimated state of the vehicle.Type: GrantFiled: August 5, 2018Date of Patent: November 17, 2020Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Min Su Lee, Woo Kyun Kim, Huikwon Lee
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Apparatus for detecting road surface state in motor-driven power steering and control method thereof
Patent number: 10780889Abstract: Disclosed herein are an apparatus for detecting a road surface state in motor-driven power steering (MDPS) and a method for controlling the apparatus. The apparatus may include a column torque sensor to detect column torque applied to a steering column and to output a column torque signal; a steering angle sensor to detect a steering angular velocity of a steering wheel; a vehicle speed sensor to detect a driving speed of a vehicle; and a road surface determiner to determine a road surface state based on a boost gain, which is calculated based on the driving speed and the column torque, and on a phase offset between the column torque and the steering angular velocity and to output a road surface determination signal.Type: GrantFiled: September 24, 2018Date of Patent: September 22, 2020Assignee: Hyundai Mobis Co., Ltd.Inventor: Tae Hong Kim -
Patent number: 10768070Abstract: The height of the center of gravity of a vehicle having at least 3 axles is estimated using the slippage rate of the wheels.Type: GrantFiled: October 16, 2015Date of Patent: September 8, 2020Assignee: VOLVO TRUCK CORPORATIONInventors: Jean-Baptiste Doray, Fabrice Ranc
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Patent number: 10723332Abstract: A braking device for a vehicle includes a plurality of braking force generators; a steering assist device; a yaw rate detecting unit; and a control device. The control device is configured to perform control such that, in a case where the plurality of braking force generators perform a braking operation and there is a malfunctioning braking force generator, braking forces of the plurality of braking force generators other than the malfunctioning braking force generator are maintained or increased when an acquired value of an actual yaw rate acquired from the yaw rate detecting unit is equal to or less than a reference value, and a steering torque is applied to a steering system in a direction in which the actual yaw rate decreases when the acquired value of the actual yaw rate is larger than the reference value.Type: GrantFiled: March 19, 2018Date of Patent: July 28, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yasushi Murayama, Yusuke Ennoji