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3427results about "Steering for vehicles in tandem" patented technology
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Recovery of calibrated center steering position after loss of battery power
ActiveUS7295907B2Accurate absolute steering angleAvoid the needDigital data processing detailsOptical signallingElectric power steeringSteering angle
Owner:TRW AUTOMOTIVE US LLC
Object detection system for vehicle
ActiveUS7720580B2Reduce processing requirementsReduce the possibilityTelevision system detailsDigital data processing detailsData setSteering angle
An imaging system for a vehicle includes an imaging array sensor and a control. The image array sensor comprises a plurality of photo-sensing pixels and is positioned at the vehicle with a field of view exteriorly of the vehicle. The imaging array sensor is operable to capture an image of a scene occurring exteriorly of the vehicle. The captured image comprises an image data set representative of the exterior scene. The control algorithmically processes the image data set to a reduced image data set of the image data set. The control processes the reduced image data set to extract information from the reduced image data set. The control selects the reduced image data set based on a steering angle of the vehicle.
Owner:MAGNA ELECTRONICS
Method and apparatus for improving vehicle operator performance
ActiveUS7565230B2Vehicle testingRegistering/indicating working of vehiclesDriver/operatorEngineering
Owner:CONTINENTAL AUTONOMOUS MOBILITY US LLC
Method and system for automatic control of vehicles based on carrier phase differential GPS
InactiveUS6052647AImprove system stabilitySimple processDigital data processing detailsPosition fixationAutomatic train controlAutomatic control
Described is an automatic control system for land (and possible marine) vehicles based on carrier phase differential GPS (CPGPS). The system relies on CPGPS to determine vehicle position and attitude very precisely (position to within 1 cm and attitude to within 0.1 DEG ). A system incorporates a technique to calculate and compensate for antenna motion due to vehicle roll and pitch. One aspect of the system utilizes an intelligent vehicle controller that recognizes and adapts to changing conditions, such as vehicle speed, implements towed by the vehicle, soil conditions, and disturbance level. The system provides the capability to control the vehicle on various paths, including straight lines and arbitrary curves. Also described is a technique for initialization and vehicle control using only a single pseudolite.
Owner:THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIV +1
User interface for displaying internal state of autonomous driving system
ActiveUS8260482B1Control process safetyDigital data processing detailsNavigation instrumentsSteering wheelEmbedded system
A passenger in an automated vehicle may relinquish control of the vehicle to a control computer when the control computer has determined that it may maneuver the vehicle safely to a destination. The passenger may relinquish or regain control of the vehicle by applying different degrees of pressure, for example, on a steering wheel of the vehicle. The control computer may convey status information to a passenger in a variety of ways including by illuminating elements of the vehicle. The color and location of the illumination may indicate the status of the control computer, for example, whether the control computer has been armed, is ready to take control of the vehicle, or is currently controlling the vehicle.
Owner:WAYMO LLC
Object detection system for vehicle
ActiveUS20060184297A1Reduce processing requirementsReduce the possibilityTelevision system detailsDigital data processing detailsData setSteering angle
An imaging system for a vehicle includes an imaging array sensor and a control. The image array sensor comprises a plurality of photo-sensing pixels and is positioned at the vehicle with a field of view exteriorly of the vehicle. The imaging array sensor is operable to capture an image of a scene occurring exteriorly of the vehicle. The captured image comprises an image data set representative of the exterior scene. The control algorithmically processes the image data set to a reduced image data set of the image data set. The control processes the reduced image data set to extract information from the reduced image data set. The control selects the reduced image data set based on a steering angle of the vehicle.
Owner:MAGNA ELECTRONICS
Unified motion planning algorithm for autonomous driving vehicle in obstacle avoidance maneuver
ActiveUS20150353082A1Reduces turning requirementReduced referenceSteering initiationsDigital data processing detailsEngineeringObstacle avoidance
A method for automated lane centering and / or lane changing purposes for a vehicle traveling on a roadway that employs roadway points from a map database to determine a reference vehicle path and sensors on the vehicle for detecting static and moving objects to adjust the reference path. The method includes reducing the curvature of the reference path to generate a reduced curvature reference path that reduces the turning requirements of the vehicle and setting the speed of the vehicle from posted roadway speeds from the map database. The method also includes providing multiple candidate vehicle paths and vehicle speeds to avoid the static and moving objects in front of the vehicle.
Owner:CARNEGIE MELLON UNIV +1
Flexible agricultural automation
InactiveUS6671582B1High precisionQuality improvementOptical radiation measurementPosition fixationAgricultural engineeringAssembly line
Agricultural operations by applying flexible manufacturing software, robotics and sensing techniques to agriculture. In manufacturing operations utilizing flexible machining and flexible assembly robots, work pieces flow through a fixed set of workstations on an assembly line. At different stations are located machine vision systems, laser based raster devices, radar, touch, photocell, and other methods of sensing; flexible robot armatures and the like are used to operate on them. This flexible agricultural automation turns that concept inside out, moving software programmable workstations through farm fields on mobile robots that can sense their environment and respond to it flexibly. The agricultural automation will make it possible for large scale farming to take up labor intensive farming practices which are currently only practical for small scale farming, improving land utilization efficiency, while lowering manpower costs dramatically.
Owner:HANLEY BRIAN P
Device for monitoring area around vehicle
InactiveUS20030080877A1Raise the possibilityDigital data processing detailsIndication of parksing free spacesCamera imageDisplay device
A back camera image from a back camera mounted on a rear portion of a vehicle body is displayed on a display mounted on the console inside the vehicle cabin when the vehicle is parallel parking. After the vehicle passes a steering direction reversal point in this state, a corner camera image from a corner camera mounted on a corner portion of a front portion of the vehicle body is displayed on the display when the vehicle nears a vehicle parked in front, or, more specifically, when an angle of the vehicle after it has reached the steering direction reversal point has reached a predetermined value. Guidance images may be overlaid upon the camera images during some or all of the parallel parking maneuver.
Owner:TOYOTA JIDOSHA KK +1
Detecting driver grip on steering wheel
ActiveUS8909428B1High measurement accuracyImprove accuracySteering initiationsDigital data processing detailsElectricityDriver/operator
Aspects of the disclosure relate generally to determining by what degree a driver is gripping a steering wheel. In one example, a computer may send an electrically assisted power steering system (EPS) motor an excitation command to move. The EPS motor may respond by moving a flexible coupling between the steering wheel and the EPS motor. This may cause a corresponding movement at the steering wheel. A torque sensor may generate pattern data by monitoring the flexible coupling during the movement. The EPS motor may generate system position data for the entire steering system, for example, from the tires to the steering wheel. The pattern data and the system position data may be compared by the computer to determine the degree of grip. In this regard, the computer may determine the degree of a driver's grip without the need for additional sensors.
Owner:WAYMO LLC
Leader-follower semi-autonomous vehicle with operator on side
Owner:DEERE & CO
Vehicle systems control for improving stability
InactiveUS20080183353A1Improve vehicle stabilityDigital data processing detailsAnimal undercarriagesControl systemTraction control system
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.
Owner:HONDA MOTOR CO LTD
Device for monitoring area around vehicle
InactiveUS6940423B2Raise the possibilityDigital data processing detailsIndication of parksing free spacesCamera imageDisplay device
Owner:TOYOTA JIDOSHA KK +1
Model based predictive control for automated lane centering/changing control systems
ActiveUS20100228420A1Minimize error valueDigital data processing detailsAnti-collision systemsVehicle dynamicsCompletion time
A system and method for providing steering control for lane changing and lane centering purposes in an autonomous or semi-autonomous vehicle system. A vehicle vision system calculates roadway lane marking information, such as lateral offset, yaw angle and roadway curvature with respect to the vehicle's centered coordinate system. The roadway is then modeled as a second order polynomial equation. The method then predicts roadway lateral position and yaw angle over a pre-defined lane change completion time using a vehicle dynamic model. The method then compares a predicted vehicle path with a desired vehicle path to generate an error value, and calculates a steering angle command to minimize the error value, where the steering angle command is calculated as a function of vehicle lateral position, vehicle lateral speed, vehicle yaw rate and vehicle yaw angle. The steering angle command is then sent to the vehicle steering system.
Owner:GM GLOBAL TECH OPERATIONS LLC
User interface for displaying internal state of autonomous driving system
Autonomous vehicles use various computing systems to transport passengers from one location to another. A control computer sends messages to the various systems of the vehicle in order to maneuver the vehicle safely to the destination. The control computer may display information on an electronic display in order to allow the passenger to understand what actions the vehicle may be taking in the immediate future. Various icons and images may be used to provide this information to the passenger.
Owner:WAYMO LLC
Trailer length estimation in hitch angle applications
ActiveUS20140277942A1Digital data processing detailsAutomatic steering controlSteering angleEngineering
A vehicle system for estimating a trailer length is disclosed. The system incorporates at least one sensor configured to measure a wheel steer angle and a trailer angle in communication with a processor. The processor is operable to determine a first length by a first computation method and determine a second length by a second computation method. The processor is further operable to validate an estimated trailer length based on the first length and the second length and perform a back-up function for the trailer based on the estimated trailer length.
Owner:FORD GLOBAL TECH LLC
User interface for displaying object-based indications in an autonomous driving system
ActiveUS8676431B1Digital data processing detailsAnti-collision systemsObject basedComputer graphics (images)
A vehicle has a plurality of control apparatuses, a user input, a geographic position component, an object detection apparatus, memory, and a display. A processor is also included and is programmed to receive the destination information, identify a route, and determine the current geographic location of the vehicle. The processor is also programmed to identify an object and object type based on object information received from the object detection apparatus and to determine at least one warning characteristic of the identified object based on at least one of: the object type, a detected proximity of the detected object to the vehicle, the location of the detected object relative to predetermined peripheral areas of the vehicle, the current geographic location of the vehicle, and the route. The processor is also configured to select and display on the display an object warning image based on the at least one warning characteristic.
Owner:WAYMO LLC
Drive Assist System
ActiveUS20090088925A1Safely changedDigital data processing detailsAnti-collision systemsEngineeringAuxiliary system
A drive assist system includes an assist starting part starting assist, a detection part detecting relative distances and speeds between a vehicles, a calculation part calculating collision risks when changing a lane by the basis of the relative distances and speeds, a first judgment part judging whether the lane can be changed by the relative distances, speeds and the collision risks, a decision part deciding a target space for lane change by the relative distances and speeds when the lane cannot be changed, a second judgment part judging whether a lane changeable space is in the target space, a setting part setting a target speed for the vehicle go to a lane change waiting position when no space and to setting a target speed the vehicle enters a lane changeable position when there is the space, and a control part controlling a speed of the vehicle reaches the target speed.
Owner:HITACHI ASTEMO LTD
Method and apparatus of controlling an automotive vehicle using brake-steer as a function of steering wheel torque
InactiveUS20050236896A1Parkability of the vehicle may be enhancedReducing the turning radius of the vehicleSteering initiationsDigital data processing detailsSteering wheelMotorized vehicle
A method of controlling an automotive vehicle having a turning radius includes determining a hand wheel torque and applying brake-steer as a function of hand wheel torque.
Owner:FORD GLOBAL TECH LLC
Leader-follower fully autonomous vehicle with operator on side
ActiveUS20100063663A1Digital data processing detailsAnti-collision systemsAutomotive engineeringLeader follower
Owner:DEERE & CO
Path generation algorithm for automated lane centering and lane changing control system
ActiveUS20090319113A1Reduce error signalDigital data processing detailsNavigation instrumentsSteering angleControl system
A system for providing path generation for automated lane centering and / or lane changing purposes. The system includes a desired path generation processor that receives signals detecting the roadway on which the vehicle is traveling, a request for a lane change, vehicle state information and a steering angle of the vehicle. The system also includes a path prediction processor that predicts the vehicle path based on vehicle state information including vehicle longitudinal speed, vehicle lateral speed, vehicle yaw-rate and vehicle steering angle. The desired path information and the predicted path information are compared to generate an error signal that is sent to a lane change controller that provides a steering angle signal to turn the vehicle and reduce the error signal. The desired path generation processor can use a fifth order polynomial equation to determine the desired path of the vehicle based on the input signals.
Owner:GM GLOBAL TECH OPERATIONS LLC
Directing vehicle into feasible region for autonomous and semi-autonomous parking
A method of guiding a vehicle to a region for initiating a parallel parking maneuver. A region of feasible starting locations for successfully performing a parallel parking maneuver is determined by a processor. A position of the vehicle relative to the region of feasible starting locations is determined. A determination is made whether the vehicle is in a zero heading position. The vehicle is guided along an initial target path by controlling a steering actuator until the vehicle is in a zero heading position relative to the road of travel in response to the vehicle is not in the zero heading position. A planned path is generated that includes two arc-shaped trajectories extending between the vehicle at the zero heading position and a position within the region of feasible starting locations as determined by the processor. The steering actuator is controlled to follow the planned path to the feasible region.
Owner:GM GLOBAL TECH OPERATIONS LLC
Dual-state steering wheel/input device
ActiveUS20140277896A1Rule out the possibilityAvoid injuryMechanical apparatusDigital data processing detailsSteering columnSteering wheel
A steering wheel is configured as a dual-state input device configured to operate in two distinct states based on a current driving mode. In a manual driving mode, the input device is configured to control a limited set of vehicle functions and in an autonomous mode the input device is configured to control an expanded set of vehicle functions. The steering wheel includes a wheel rim movably mounted on a steering column and a hub disposed within a center of the wheel rim on the steering column, the main body portion comprising an interactive touch screen disposed on the main body portion. The wheel rim is configured to disengage from the hub and move along the steering column to a retracted position.
Owner:VOLKSWAGEN AG +1
System and method of calibrating a trailer backup assist system
ActiveUS20140188344A1Digital data processing detailsSteering initiationsControl theoryAuxiliary system
A system and a method are provided for calibrating a backup assist system for a trailer attached to a vehicle. The method includes driving the vehicle forward substantially straight above a threshold speed, sensing a yaw rate of the vehicle, and sensing a measured hitch angle of the trailer. A yaw sensor continuously senses the yaw rate of the vehicle and a hitch sensor continuously measures the hitch angle for determining an angle rate based on the measured hitch angle. Further, a controller determines an offset between the measured hitch angle and an actual hitch angle when the yaw rate and angle rate are substantially zero or otherwise the same.
Owner:FORD GLOBAL TECH LLC
Vehicle stability enhancement control adaptation to driving skill based on highway on/off ramp maneuver
InactiveUS20100211270A1Vehicle testingRegistering/indicating working of vehiclesDriver/operatorSkill sets
A system that classifies driver driving skill based on on-ramp or off-ramp maneuvers. The system reads sensor signals for vehicle speed and vehicle yaw rate. The system determines that the vehicle has made an on-ramp or off-ramp maneuver using the vehicle speed signal and the yaw-rate signal and then classifies the driver's driving skill using selected discriminant features obtained or derived from the on-ramp or off-ramp maneuver.
Owner:GM GLOBAL TECH OPERATIONS LLC
Vehicle with high integrity perception system
ActiveUS20100063672A1Vehicle testingRegistering/indicating working of vehiclesHigh integrityEmbedded system
The illustrative embodiments provide an apparatus for processing sensor data and controlling the movement of a vehicle. In an illustrative embodiment, an operating environment around the vehicle is identified and sensor data is selected from a set of sensors. The movement of the vehicle is controlled based on the operating environment identified. In another illustrative embodiment, a sensor system has some sensors that are more accurate in a particular environment than other sensors. A dynamic condition is identified by the sensor system and commands are sent to the steering system, the propulsion system, and the braking system to move the vehicle using the sensor data detected by the sensor system. The environment is identified using the plurality of different types of sensors on the vehicle.
Owner:DEERE & CO
Trailer backup assist system with off-shoot correction
A trailer backup assist system for a vehicle reversing a trailer is provided herein. The system includes a steering input device for controlling a desired curvature. A controller is in communication with the steering input device and is configured to generate steering command for the vehicle to guide the vehicle and trailer onto a straight path when a straight backup request is initiated via the steering input device.
Owner:FORD GLOBAL TECH LLC
Occupant sensing system
InactiveUS7415126B2Improve comfortAvoid accidentsVehicle seatsBelt retractorsCMOSClassification methods
Optical classification method for classifying an occupant in a vehicle by acquiring images of the occupant from a single camera and analyzing the images acquired from the single camera to determine a classification of the occupant. The single camera may be a digital CMOS camera, a high-power near-infrared LED, and the LED control circuit. It is possible to detect brightness of the images and control illumination of an LED in conjunction with the acquisition of images by the single camera. The illumination of the LED may be periodic to enable a comparison of resulting images with the LED on and the LED off so as to determine whether a daytime condition or a nighttime condition is present. The position of the occupant can be monitored when the occupant is classified as a child, an adult or a forward-facing child restraint.
Owner:AMERICAN VEHICULAR SCI
Trailer articulation angle estimation
This invention takes the advantage of existing radar, vision and ultrasonic sensors available for side blind spot detection, rear view, rear virtual bumper, and rear parking assist. Using a sensor fusion technique to combine the useful information from these sensors, the trailer articulation angles as well as trailer track width and tongue length is accurately estimated. When an active steering system is present, vehicle and trailer can be controlled with increased stability by applying the trailer information.
Owner:GM GLOBAL TECH OPERATIONS LLC
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Special data processing applications Steering for vehicles in tandem Non-deflectable wheel steering Underwater equipment Dynamo-electric motors/converters starters Motor/generator/converter stoppers Steering linkages Vessel parts Dynamo-electric converter control Vehicle position/course/altitude control
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