Vehicle Speed Control (e.g., Cruise Control) Patents (Class 701/93)
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Patent number: 8965052Abstract: A target recognition system and a target recognition method to recognize one or more recognition targets, operatively connected to an imaging device to capture an image of an area ahead of the target recognition system, each of which includes a recognition area detector to detect multiple recognition areas from the captured image; a recognition weighting unit to set recognition weight indicating existence probability of images of the recognition targets to the respective recognition areas detected by the recognition area detector; and a target recognition processor to recognize the one or more recognition targets in a specified recognition area based on the recognition weight set in the respective recognition area.Type: GrantFiled: May 30, 2013Date of Patent: February 24, 2015Assignee: Ricoh Company, Ltd.Inventor: Haike Guan
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Publication number: 20150051806Abstract: A vehicle-based positioning system (VBPS) for a vehicle traversing a guideway, the VBPS includes an inertial navigation system (INS) on-board the vehicle, wherein the INS is configured to detect inertial parameters of the vehicle while the vehicle traverses the guideway, the detected inertial parameters including roll, pitch and yaw of the vehicle. The VBPS includes a guideway database, wherein the guideway database is configured to store inertial parameters of the guideway at a plurality of locations along the guideway, the stored inertial parameters include roll, pitch and yaw of the guideway. The VBPS further includes a vital on-board controller (VOBC), the VOBC is configured to determine a position of the vehicle based on a comparison of the detected inertial parameters with the stored inertial parameters. The VOBC is configured to limit comparison of the inertial parameters with the stored inertial parameters based on a latest checkpoint passed by the vehicle.Type: ApplicationFiled: August 14, 2013Publication date: February 19, 2015Applicant: thales Canada Inc.Inventors: Ehsan Kimiagar, Firth Whitwam
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Patent number: 8958969Abstract: The invention relates to a method and a device for operating a motor vehicle with an internal combustion engine in a coasting operating mode in which the motor vehicle rolls essentially in a propulsionless fashion and essentially without a perceptible engine drag torque on an essentially level road if there is no propulsion request or braking request from a driver of the motor vehicle. According to the invention, the coasting operating mode is not brought about by automatically opening the drivetrain but rather is simulated with the clutch closed in that so much air/fuel mixture is fed to the internal combustion engine that the engine drag torque is largely but not completely compensated.Type: GrantFiled: September 21, 2012Date of Patent: February 17, 2015Assignee: Ford Global Technologies, LLCInventors: Urs Christen, Andreas R. Schamel, Goetz-Phillipp Wegner, Uwe Gussen
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Publication number: 20150046058Abstract: A driving assistance device includes a speed zone computation unit configured to compute a speed zone of the host vehicle having a possibility that the host vehicle will come into contact with the mobile object when progressing in the progressing direction, based on the mobile object information set by the mobile object information setting unit; a target speed computation unit configured to compute a target speed of the host vehicle based on a speed zone; and a target speed profile creation unit configured to create a target speed profile for decelerating the host vehicle from the current speed to the blind spot entry target speed, based on a blind spot entry target speed which is the target speed of the host vehicle at the time of entering a place forming the blind spot, a current speed of the host vehicle, and a target acceleration for deceleration.Type: ApplicationFiled: March 15, 2012Publication date: February 12, 2015Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Shinichi Nagata
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Patent number: 8954256Abstract: The vehicle-use speed control apparatus sets a virtual preceding vehicle assumed to run at a target speed at a predetermined initial distance ahead of the own vehicle when the brake pedal is operated causing a relative speed between the actual vehicle speed and the target speed exceeds a predetermined value, calculates an initial value of a performance index for approach and alienation based on the initial distance and the target speed. Thereafter, the vehicle-use speed control apparatus repeatedly calculates a following distance to the virtual preceding vehicle based on a time elapsed from when a speed control start condition is satisfied, the current relative speed and the initial distance, and a target relative speed based on the initial distance, the initial value of the performance index and the following distance, and controls the vehicle speed based on the difference between the target relative speed and the actual relative speed.Type: GrantFiled: May 12, 2011Date of Patent: February 10, 2015Assignee: Denso CorporationInventors: Kazuyoshi Isaji, Naohiko Tsuru
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Patent number: 8954255Abstract: Aspects of the present disclosure are directed towards hysteresis engaged vehicle cruise control apparatuses, and systems and methods that facilitate energy efficiency as a function of external energy obstacles. The method and system includes an adaptable terrain-based speed profile and terrain-based work function for maintaining a vehicle at a desired speed and selected speed range. The speed profile further includes a terrain-based driving preference associated with an identifier that identifies a particular driver and driving profile. Vehicle-related data is generated with regard to energy efficiency obstacles, and vehicle speed is automatically adjusted based on this data to facilitate fuel economy. In certain embodiments, vehicle-related data is sent to a cloud-computing system for processing. In other embodiments, the desired speed and terrain-based speed profile is influenced by user or external inputs.Type: GrantFiled: September 17, 2012Date of Patent: February 10, 2015Inventor: Robert J. Crawford
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Publication number: 20150039202Abstract: A vehicle exterior environment recognition device includes a traffic light identifying module that identifies one or more traffic lights located ahead of a vehicle, and traffic light colors of the traffic lights, and a control input identifying module that identifies, when multiple traffic lights exist, traffic lights to be used as control inputs based on whether the multiple traffic lights are located on both the left and right sides of a traveling path of the vehicle, and whether the multiple traffic lights are same in color.Type: ApplicationFiled: July 30, 2014Publication date: February 5, 2015Inventor: Shinnosuke KIDO
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Publication number: 20150039203Abstract: The present disclosure describes systems and methods for controlling the speed of a vehicle comprising: during a pulse phase of cruise control, applying engine torque to raise speed, the amount and duration of which being responsive to engine speed; and during a glide phase of cruise control, discontinuing engine combustion. In this way cruise control may maintain a mean speed equivalent to a desired, threshold speed while reducing fuel consumption, and NVH effects felt by the end user compared to traditional cruise control methods.Type: ApplicationFiled: October 21, 2014Publication date: February 5, 2015Inventors: Chris Edward Pedlar, Chris Connelly, David Hesketh, Themi Philemon Petridis
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Publication number: 20150039185Abstract: Disclosed are a parking operation control apparatus and a control method thereof. The apparatus includes a first sensing unit to sense current wheel speed of an automobile in a parking release mode or a current front-wheel speed of the automobile in a parking operation mode, a first controller to receive the current wheel speed and output the same and to store a reference wheel-speed range, a second sensing unit to sense the current wheel speed from the first controller, a first judgment unit to judge whether the current wheel speed deviates from the reference wheel-speed range, or whether the current wheel speed sensed by the second sensing unit is not output, and a regulation unit to regulate the current wheel speed to conform to the reference wheel-speed range when the first judgment unit judges that the current wheel speed deviates from the reference wheel-speed range or is not output.Type: ApplicationFiled: June 16, 2014Publication date: February 5, 2015Inventor: Yong-Kil KIM
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Patent number: 8948926Abstract: A system is provided which is capable of controlling one or more parameters of a vehicle, such as vehicle speed or engine RPM. The system involves communication between a transmitter and a controller. The transmitter has memory containing information that corresponds to a vehicle parameter setting. The information is operatively transmitted from the transmitter to the controller. Once the controller receives the information, the vehicle parameter setting is identified by the controller. When the setting is identified, the controller may adjust at least one mechanism on the vehicle so as modify the vehicle parameter accordingly. One scenario in which the parameter modification is generally provided is if the controller determines that the vehicle parameter is exceeding the identified setting, which corresponds to the vehicle being operated at a level higher than that intended for the vehicle operator.Type: GrantFiled: September 17, 2010Date of Patent: February 3, 2015Assignee: Polaris Industries Inc.Inventor: Steven C. Erickson
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Publication number: 20150025770Abstract: The present invention relates to a method of identifying the hand of traffic applicable to a subject vehicle (3). The subject vehicle (3) travels in a first direction and has a first side and a second side. The method comprises tracking at least a first object vehicle (V) on the first side of the subject vehicle (3), and/or detecting the presence or absence of at least a first stationary target (T) on the first side of the subject vehicle (3). A direction of travel of each first object vehicle (V) is determined in relation to the subject vehicle (3). The hand of traffic is identified based on the direction of travel of each first object vehicle (V), and/or the presence or absence of each first stationary target (T). The invention also relates to a method of implementing Adaptive Cruise Control (ACC) using the hand of traffic information. The invention also relates to a control unit (1) for determining the hand of traffic.Type: ApplicationFiled: January 8, 2013Publication date: January 22, 2015Inventors: Ian Blake, James Smith
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Publication number: 20150025769Abstract: A system for controlling vehicle speed in accordance with a current value of vehicle set-speed. The system responds to user input to change the current value of vehicle set-speed to a different value and is configured to store the current value of set-speed in a memory as a stored set-speed and to change the current value of set-speed in dependence on the user input. The speedometer indicates both the current and stored set-speeds. The system can return the current value of vehicle set-speed to the stored set-speed upon receipt of a “resume” or other user command. The system can enter into a descent control mode that applies braking torque but no drive torque and can also enter into a full functionality mode that provides either drive or braking torque to maintain the vehicle at the set-speed.Type: ApplicationFiled: March 15, 2014Publication date: January 22, 2015Inventors: Diana Franganillo, Simon Gilling, Andrew Fairgrieve, Daniel Woolliscroft, James Kelly
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Patent number: 8938352Abstract: A method for controlling a cruise control operable to maintain a set speed of a vehicle according to a plurality of goal droop curves is provided. The goal droop curves include: an isochronous droop curve; a top droop curve; and a bottom droop curve. The method includes performing command according to the droop curves; registering that the vehicle soon will enter an uphill slope; estimating in a vehicle position before entering the uphill slope if a downshift in a transmission of the vehicle will occur when traveling the uphill slope during a coming time period (testimation); if the downshift is estimated to occur then performing a fuel saving action during the time period in order to avoid the downshift. The fuel saving action is one of an adaptation of transmission downshifting limits or to during the time period performing command according to a second isochronous curve.Type: GrantFiled: May 3, 2010Date of Patent: January 20, 2015Assignee: Volvo Lastvagnar ABInventors: Johan Bjernetun, Anders Eriksson
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Patent number: 8935072Abstract: A subject matter of the application relates to a method for determining a speed of a vehicle. In one embodiment, the method includes ascertaining a first value of a distance traveled by the vehicle within a time interval on the basis of data ascertained by at least one first revolution sensor of a first tire of the vehicle and a second revolution sensor of a second tire of the vehicle; ascertaining a second value of a distance traveled by the vehicle within a time interval on the basis of data ascertained by a position-determining device; and comparing the ascertained first value and the ascertained second value. If a deviation between the ascertained first value and the ascertained second value exceeds a predetermined threshold value, the method includes classifying a speed determined on the basis of the ascertained second value.Type: GrantFiled: September 28, 2012Date of Patent: January 13, 2015Assignee: GM Global Technology Operations LLCInventor: Harald Eisele
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Publication number: 20150012202Abstract: Regulating a speed of a motor vehicle during an automated parking operation comprises measuring a speed of the motor vehicle during the automated parking operation, comparing the measured speed with a predefined speed value, reducing an engine power of an internal combustion engine of the motor vehicle and increasing a brake pressure of a brake of the motor vehicle if the measured speed is higher than predefined by the predefined speed value, and increasing the engine power and reducing the brake pressure if the measured speed is lower than predefined by the predefined speed value.Type: ApplicationFiled: June 23, 2014Publication date: January 8, 2015Inventors: Ian Moore, Nadja Wysietzki
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Patent number: 8930059Abstract: Each respective vehicle of a plurality of vehicles transports a vehicle navigation system. A position determining system determines a position and a velocity of the respective vehicle and an information acquisition system is operable to determine a displacement and velocity between the respective vehicle and a vehicle adjacent to the respective vehicle. An information communication system of a respective vehicle is operable to transmit first information (that vehicle's velocity and position) to other vehicles and to receive information from other vehicles regarding their velocities and positions. A vehicle routing system can determine a target routing and target velocity for moving the respective vehicle over a path including the roadway. Based on the received or determined information, the velocity of the respective vehicle can be controlled.Type: GrantFiled: September 9, 2013Date of Patent: January 6, 2015Inventor: Ryan A. Neff
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Patent number: 8930053Abstract: A control apparatus for a hybrid vehicle includes, as a drive power source, a hybrid system that has an engine and a motor. The control apparatus includes a control unit configured to reduce an output of the hybrid system and maintain or increase an engine rotation speed when a driver performs an accelerator operation and a brake operation simultaneously.Type: GrantFiled: December 6, 2012Date of Patent: January 6, 2015Assignee: Toyota Jidosha Kabushiki KaishaInventors: Toshiya Hashimoto, Hideaki Yaguchi
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Patent number: 8930115Abstract: Vehicle apparatus includes a speed control for adjusting a vehicle powertrain of the vehicle in response to a speed setpoint. A grade estimator determines a road grade of a roadway where the vehicle is traveling. A traffic density estimator determines a density of traffic traveling on the roadway in the vicinity of the vehicle. An optimizer executes a selected control policy to periodically generate speed adjustments for applying to the speed setpoint to operate the vehicle powertrain at increased efficiency. The control policy is based on a value function providing an optimized solution for a cost model responsive to the determined road grade to generate an initial speed offset. The optimizer reduces the initial speed offset in proportion to the determined traffic density to generate the speed adjustments. The system minimizes negative impacts to overall traffic flow as well as any negative contribution to reduced fuel efficiency of surrounding traffic.Type: GrantFiled: February 26, 2013Date of Patent: January 6, 2015Assignee: Ford Global Technologies, LLCInventors: Dimitar P. Filev, John O. Michelini, Steven J. Szwabowski, Diana Yanakiev
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Publication number: 20150006055Abstract: A reference value for controlling a vehicle's speed is obtained by: receiving a choice from two selectable driving modes, each driving mode having a unique set of settings that influence the calculation of the reference value; making a first prediction, based on an engine torque Tret that retards the vehicle as compared with conventional cruise control, and a second prediction based on an engine torque Tacc that accelerates the vehicle as compared with conventional cruise control; comparing the first and second predictions with a lower limit value and/or an upper limit value, which delineate a speed range within which the speed should be; and determining the reference value based on the mode choice and on at least one of the comparisons and said first prediction and second prediction of the speed along the horizon, such that the reference value is within the speed range.Type: ApplicationFiled: December 22, 2011Publication date: January 1, 2015Inventors: Oskar Johansson, Maria Södergren, Fredrik Roos
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Patent number: 8924116Abstract: A vehicle motion control device providing good trace performance with a simple configuration for performing a rollover prevention control involving suppressing rollover of a vehicle by applying a braking force to a front wheel located on the radially outer of the turning locus and a rear wheel located on the radially outer of the turning locus, comprises a braking control unit configured to restrict the application of the braking force to the front wheel located on the radially outer of the turning locus until a predetermined limit time elapses since the application of the braking force to the rear wheel located on the radially outer of the turning locus is started when the braking force is applied to the front wheel located on the radially outer of the turning locus and the rear wheel located on the radially outer of the turning locus as the rollover prevention control.Type: GrantFiled: January 30, 2012Date of Patent: December 30, 2014Assignee: Advics Co., Ltd.Inventors: Tetsuya Yamada, Hideaki Koto
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Patent number: 8924119Abstract: A retarding unit in a vehicle is automatically controlled based on conditions including a current setting of the retarding control, downhill grade, speed, current gear, and impending gear change. With the retarder control set in the high position, when the vehicle is operating at a downhill angle greater than the low angle threshold and less than the high angle threshold, and the pending gear is a large step downshift, automatically setting a retarder level to a low retarder level. When the vehicle is operating on level ground and the pending gear is a large step downshift or the current gear is first or second gear, automatically setting the retarder level to off. When the vehicle is operating on flat ground and the deceleration is above a trigger level, automatically setting the retarder level to a low retarder level.Type: GrantFiled: March 8, 2013Date of Patent: December 30, 2014Assignee: Caterpillar Inc.Inventors: Timothy D. Schwartz, James Landes
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Publication number: 20140371984Abstract: Methods of assessing driver behavior include monitoring vehicle systems and driver monitoring systems to accommodate for a driver's slow reaction time, attention lapse and/or alertness. When it is determined that a driver is drowsy, for example, the response system may modify the operation of one or more vehicle systems. The systems that may be modified include: visual devices, audio devices, tactile devices, antilock brake systems, automatic brake prefill systems, brake assist systems, auto cruise control systems, electronic stability control systems, collision warning systems, lane keep assist systems, blind spot indicator systems, electronic pretensioning systems and climate control systems.Type: ApplicationFiled: August 18, 2014Publication date: December 18, 2014Inventors: Kin C. Fung, Timothy J. Dick
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Patent number: 8914225Abstract: A system and method for managing vehicles on a road network can include a processor that performs operations including accessing a matrix of vehicle parameters of a plurality of communicating vehicles on the road network and representing the plurality of communicating vehicles in a graph with a plurality of nodes corresponding to the plurality of communicating vehicles and edges corresponding to the vehicle parameters. The system and method can include partitioning, with a processing device, the graph to reduce disruptions to the road network below a threshold level to support safe and efficient traffic flow and assigning one or more exclusion zones within the road network to each partition of the graph by associating the vehicle parameters for each vehicle.Type: GrantFiled: December 4, 2012Date of Patent: December 16, 2014Assignee: International Business Machines CorporationInventors: Sasha P. Caskey, Dimitri Kanevsky, James R. Kozloski, Tara N. Sainath
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Patent number: 8909452Abstract: In a vehicle driving support apparatus, if a brake pedal operation by a driver is detected during a braking control, a cruise control unit determines that it is highly likely that the driver recognizes a possibility of a collision of a subject vehicle and a obstacle, and halts the braking control. On the other hand, if a depression amount of the brake pedal by the driver changes to a release side at or over a preset speed, the cruise control unit restarts the halted braking control.Type: GrantFiled: March 2, 2012Date of Patent: December 9, 2014Assignee: Fuji Jukogyo Kabushiki KaishaInventors: Hiroki Kato, Kiyoshi Natori
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Publication number: 20140350819Abstract: Reference speed values for a vehicle's control system are determined by: determining, using map and location data, route segments, each with route characteristics; performing, simulation cycles, each comprising simulation steps of: predicting the speed when the set speed is imparted as the reference speed; comparing with first lower and upper limit values, which define an engine torque, for use in the next simulation cycle; making a second prediction of the speed when the engine torque is a value that depends on the result of said first comparison in the immediately preceding simulation cycle; comparing the second predicted vehicle speed with second lower and upper limit values, which delineate a range within which the speed is maintained, with an offset added if the vehicle is in a route segment with a steep hill; and determining the reference value based on the second comparison and/or the second predicted vehicle speed.Type: ApplicationFiled: December 22, 2011Publication date: November 27, 2014Inventors: Oskar Johansson, Maria Södergren, Fredrik Roos
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Publication number: 20140350820Abstract: A method for controlling a vehicle's speed, including: acquiring a set speed; determining, using using map and location data, a horizon made of route segments, each with a route characteristic; performing simulation cycles, each including: predicting the speed according to a conventional cruise control, which first prediction depends on the route characteristic; comparing the first predicted speed with lower and upper limit values, which define an engine torque for use in the next simulation cycle; making a second prediction of the speed when the engine torque depends on the comparison in the immediately preceding simulation cycle; comparing, as a second comparison, the second predicted speed with second lower and upper limit values, which delineate a speed range within which the speed is maintained; determining, based on the second comparison and/or the second predicted speed in this simulation cycle, a reference value for use by a vehicle control system.Type: ApplicationFiled: December 22, 2011Publication date: November 27, 2014Inventors: Oskar Johansson, Maria Södergren, Fredrik Roos
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Publication number: 20140350821Abstract: A method for determination of at least one reference value for controlling a vehicle's speed is described. The method may entail making a first prediction vpred—Tnew—ret and a second prediction vpred—Tnew—acc of a vehicle speed along a horizon, said first prediction based on an engine torque Tret which retards the vehicle as compared with a conventional cruise control, and said second prediction based on an engine torque Tacc which accelerates the vehicle as compared with a conventional cruise control; comparing said respective first prediction vpred—Tnew—ret and second prediction vpred—Tnew—acc of the vehicle speed with a lower limit value vmin and/or an upper limit value vmax which delineate a range within which the vehicle's speed should be; and determining at least one reference value based on at least one of said respective comparisons and said first prediction vpred—Tnew—ret and second prediction vpred—Tnew—acc of the vehicle speed along the horizon.Type: ApplicationFiled: December 22, 2011Publication date: November 27, 2014Applicant: SCANIA CV ABInventors: Oskar Johansson, Maria Södergren, Fredrik Roos
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Patent number: 8896464Abstract: At least one embodiment of the invention relates to a navigation device for providing warnings when a detection point of a speed trap is approached, including a processor unit arranged to communicate with memory unit and to receive positional information from a positioning device. The memory unit may include a speed trap database, including at least one detection point of a location of a speed trap. The navigation device of at least one embodiment is arranged to provide a warning when one of the at least one detection point is approached. The memory unit is further arranged to include at least a further detection point associated with at least one of the stored detection points, both relating to a same point to point speed trap. In at least one embodiment, the navigation device is arranged to provide a warning when the further detection point is approached or has been passed.Type: GrantFiled: June 27, 2006Date of Patent: November 25, 2014Assignee: TomTom International B.V.Inventor: Arshak Khachaturian
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Patent number: 8890717Abstract: System and method for identifying speeding violations, comprising determining a current speed and a current location of a vehicle, determining a posted speed limit for the current location from a speed-by-street database, comparing the current speed of the vehicle to the posted speed limit, and evaluating whether the current speed exceeds the posted speed limit. Errors are identified in the speed-by-street database by storing a plurality of speeding violation records, wherein the speeding violation records each include a speeding event location; analyzing the speeding violation records to identify one or more speeding event locations having multiple speeding violations; comparing a posted speed limit at the one or more speeding event locations having multiple speeding violations to corresponding speed limit data in the speed-by-street database; and identifying one or more speed limit entries in the speed-by-street database that do not match the posted speed limit.Type: GrantFiled: December 22, 2010Date of Patent: November 18, 2014Assignee: inthinc Technology Solutions, Inc.Inventors: Scott McClellan, Todd Follmer, Jonathan C. Catten, Eric Capps, Dave Ord, Richard Eyre, Verlin Russon, Ed Maynard
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Patent number: 8892329Abstract: A plurality of position data sets representing a plurality of points on a road ahead of a vehicle are acquired, and the degree of curvature of the road at each point is computed. On the basis of the degree of curvature, a constant curvature degree section of a curve is identified, and the degree of curvature and the end position of the constant curvature degree section are determined. In order to cause the vehicle to properly pass through the curve, curve deceleration control is executed on the basis of the actual vehicle speed, a proper vehicle speed determined from the degree of curvature, and the end position of the constant curvature degree section. That is, the curve deceleration control is performed on the basis of the start point of a section of a curve having the maximum degree of curvature and the constant degree of curvature of that section.Type: GrantFiled: August 3, 2010Date of Patent: November 18, 2014Assignee: Advics Co., Ltd.Inventors: Yoshiyuki Yasui, Hideaki Koto, Manabu Tanaka, Takayuki Miyajima
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Patent number: 8892331Abstract: A drive assist system includes: wireless communication devices on first and second vehicles. The wireless communication device on the first vehicle includes: a distance calculation device for calculating a satellite positioning distance between the first and second vehicles; and a difference calculation device for calculating a distance difference between the satellite positioning distance and a distance to the second vehicle obtained by a ranging sensor in the first vehicle.Type: GrantFiled: June 20, 2012Date of Patent: November 18, 2014Assignee: Denso CorporationInventors: Seigou Kumabe, Takahisa Yamashiro
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Publication number: 20140336897Abstract: A device for operating a first driver assistance system for a vehicle includes: a control unit for controlling an operating state of the first driver assistance system, the control unit being designed to control the operating state as a function of an operating state of another driver assistance system for the vehicle.Type: ApplicationFiled: August 28, 2012Publication date: November 13, 2014Inventor: Stefan Nordbruch
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Patent number: 8886437Abstract: A method of controlling an engine in a motor vehicle includes opening a throttle to an increased angle when conditions for fuel cut cycling are met. More specifically, when cruise control is on, the motor vehicle is moving downhill, and the current speed drops below a target speed, the engine control unit may choose to increase the angle of the throttle while maintaining fuel cut. Under other interrupting events, the engine control unit may choose to resume fueling control or reduce the throttle angle.Type: GrantFiled: April 12, 2011Date of Patent: November 11, 2014Assignee: Honda Motor Co., Ltd.Inventors: Michael T. Dickinson, Naomichi Tonokura
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Publication number: 20140330503Abstract: Described is a method for determining a reference value for a vehicle. The method includes: performing a number of simulation cycles Sj each comprising simulation steps: making a first prediction of the vehicle's speed vpred—cc along the determined horizon with a conventional cruise control; comparing, in a first comparison, the predicted vehicle speed vpred—cc with vlim1 and vlim2, which define a motor torque used in a subsequent simulation cycle; making a second prediction of the speed when the engine torque is a value that depends on the result of said comparison in the latest preceding simulation cycle; comparing, in a second comparison, the predicted vehicle speed vpred—Tnew with vmin, and vmax1 which demarcate a range within which the speed is maintained; determining the reference value based on the second comparison and/or the second predicted speed in that simulation cycle Sj; and controlling the vehicle according to the reference value.Type: ApplicationFiled: December 22, 2011Publication date: November 6, 2014Applicant: SCANIA CV ABInventors: Oskar Johansson, Maria Södergren, Fredrik Roos
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Publication number: 20140330502Abstract: A vehicle control system includes a forward vehicle sensor transmitting a forward vehicle message based on a distance to a forward vehicle. An adaptive cruise controller receives the forward vehicle message and receives at least one additional message indicating a respective status of the vehicle, the adaptive cruise controller sets a braking pressure for an adaptive cruise controller braking event above a default braking pressure if the adaptive cruise controller determines, based on the at least one of the additional messages, that the vehicle will maintain stability during the adaptive cruise controller braking event.Type: ApplicationFiled: July 17, 2014Publication date: November 6, 2014Inventors: Robert J. Custer, Charles E. Ross, Srikiran Kosanam, William P. Amato
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Patent number: 8880309Abstract: The present invention provides a smoother driving experience through the use of an advanced powertrain system for a vehicle. The powertrain system includes a transmission having a gear selection controller adapted to select one of a plurality of gear ratios, an electronic control unit, at least one information acquisition unit wherein the electronic control unit uses information from the information acquisition unit to determine if the vehicle is stationary and if the vehicle is on an expressway. If the electronic control unit determines the vehicle is stationary and the vehicle is on an expressway, then the electronic control unit sends a signal to the gear selection controller of the transmission to select a lower gear ratio that would normally be used to transition the vehicle from a stationary to a moving state.Type: GrantFiled: April 12, 2013Date of Patent: November 4, 2014Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.Inventor: Tai J. Ly
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Patent number: 8874303Abstract: Disclosed is a fuel-saving driving evaluation system which provides a driver with advice suitable for the driver based on fuel-saving driving evaluation standards which correspond to the fuel-saving driving proficiency level of the driver, so that the driver is relaxed and the fuel-saving driving skill of the driver is gradually improved. The fuel-saving driving evaluation system is comprised of an engine speed measuring device, a vehicle speed measuring device, a fuel flow measuring device, and a control device. The control device has a function to store several kinds of standard values and target values of parameters (driving operation parameters) for evaluating the fuel-saving driving level in the vehicle to be evaluated, and a function to determine the standard values and the target values of the parameters based on control signals sent from outside of the control device.Type: GrantFiled: December 14, 2009Date of Patent: October 28, 2014Assignee: UD Trucks CorporationInventors: Takahiro Ishida, Yoshitaka Nishiyama
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Patent number: 8874267Abstract: Aspects of the disclosure relate generally to detecting and avoiding blind spots of other vehicles when maneuvering an autonomous vehicle. Blind spots may include both areas adjacent to another vehicle in which the driver of that vehicle would be unable to identify another object as well as areas that a second driver in a second vehicle may be uncomfortable driving. In one example, a computer of the autonomous vehicle may identify objects that may be relevant for blind spot detecting and may determine the blind spots for these other vehicles. The computer may predict the future locations of the autonomous vehicle and the identified vehicles to determine whether the autonomous vehicle would drive in any of the determined blind spots. If so, the autonomous driving system may adjust its speed to avoid or limit the autonomous vehicle's time in any of the blind spots.Type: GrantFiled: January 9, 2014Date of Patent: October 28, 2014Assignee: Google Inc.Inventors: Dmitri A. Dolgov, Christopher Paul Urmson
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Publication number: 20140316670Abstract: A device is configured for setting at least three assistance function units that influence the speed of a motor vehicle. The assistance function units are selected from a group consisting of a speed maintaining assistance function unit, a predictive distance control assistance function unit, a speed limiting assistance function unit, and an uphill or downhill travel assistance function unit. The device includes an individual switching operator control unit and a control unit configured to monitor the actuation of the individual switching operator control unit, and select an assistance function unit when the individual switching operator control unit is activated.Type: ApplicationFiled: April 9, 2014Publication date: October 23, 2014Applicant: Dr. Ing. h.c. F. Porsche AktiengesellschaftInventor: Lutz Krauss
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Patent number: 8868311Abstract: A method of controlling braking in an adaptive cruise control (ACC) of a vehicle. The method includes determining that braking is needed, including determining an amount of braking force needed, providing an indication to the brake system that braking is needed, filling the brake system with brake fluid at a predetermined rate to reduce pump noise, setting a delay equal to the amount of time needed to fill the brake system with fluid, applying a brake pad to a brake disc at the amount of braking force needed after waiting the delay, comparing the amount of braking force needed to the amount of braking force actually occurring, and reducing the delay to zero when the amount of braking force needed is less than or equal to the amount of braking force actually occurring.Type: GrantFiled: March 15, 2013Date of Patent: October 21, 2014Assignee: Robert Bosch GmbHInventor: Oliver F. Schwindt
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Patent number: 8868312Abstract: The present disclosure describes systems and methods for controlling the speed of a vehicle comprising: during a pulse phase of cruise control, applying engine torque to raise speed, the amount and duration of which being responsive to engine speed; and during a glide phase of cruise control, discontinuing engine combustion. In this way cruise control may maintain a mean speed equivalent to a desired, threshold speed while reducing fuel consumption, and NVH effects felt by the end user compared to traditional cruise control methods.Type: GrantFiled: February 27, 2013Date of Patent: October 21, 2014Assignee: Ford Global Technologies, LLCInventors: Chris Edward Pedlar, Chris Connelly, David Hesketh, Themi Philemon Petridis
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Patent number: 8862360Abstract: A control system for a machine having a transmission system is provided. The control system includes a wheel speed sensor, a cruise control module and a controller. The wheel speed sensor is configured to generate a signal indicative of a wheel speed. The cruise control module is configured to maintain a desired wheel speed of the machine. The controller is in communication with the wheel speed sensor and the cruise control module. The controller is configured to selectively deactivate the cruise control module based, at least in part, on a comparison of the wheel speed and a localized speed of the machine near the wheel.Type: GrantFiled: May 10, 2013Date of Patent: October 14, 2014Assignee: Caterpillar Inc.Inventors: Fazal A. Goraya, Justin L. Steinlage, Daryl R. Brower, Bruce Addison Thomas, III, Nathan S. Pauli
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Publication number: 20140303869Abstract: The novelty of this invention is that the vehicle's two degrees of freedom in motion is controlled by a single action of a driver. With this method, a driver can control a vehicle easily and intuitively. This invention might make it possible for impaired people to drive vehicles at their will for the first time. First, a sensor unit of a vehicle detects the Cartesian coordinates (x, y) that are specified by the driver. Second, a computing unit of the vehicle converts the coordinates (x, y) into a desired translation speed and a desired rotation speed, or into a desired translation speed and a desired curvature. Third, the motion control unit of the vehicle controls its motion using the desired translation speed and rotation speed, or the translation speed and curvature.Type: ApplicationFiled: January 12, 2012Publication date: October 9, 2014Inventor: Yutaka Kanayama
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Patent number: 8855887Abstract: A coasting control device capable of avoiding coasting control during turning is provided. A turning recognition unit that recognizes that a vehicle is turning and a unit for prohibiting coasting control during turning that prohibits coasting control when the turning recognition unit recognizes that the vehicle is turning are provided.Type: GrantFiled: July 7, 2011Date of Patent: October 7, 2014Assignees: Isuzu Motors Limited, Transtron Inc.Inventors: Nobuyuki Iwao, Yasushi Yamamoto, Kazuhiko Kobayashi, Hiroyuki Arai, Kouhei Takama
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Patent number: 8855869Abstract: The disclosure describes, in one aspect, a method for determining a machine ground speed. The method includes determining a machine speed from a position determining system, the machine speed includes a horizontal speed component and a vertical speed component, determining a direction the machine is moving at the machine speed, determining a machine inclination angle, determining a machine rate of inclination, and determining a compensated ground speed as a function of the horizontal speed component, the vertical speed component, the direction, the machine inclination angle, and the machine rate of inclination.Type: GrantFiled: December 22, 2011Date of Patent: October 7, 2014Assignee: Caterpillar Inc.Inventors: Robert Shockency, Jr., Eric Dishman, Erik Eddington, Nathaniel Doy
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Patent number: 8855874Abstract: A method and device are provided for controlling a vehicle cruise control in a vehicle, the method including registering a starting point and an end destination for a possible traveling route of the vehicle, registering a desired traveling time for the traveling route, calculating and setting limits for parameters of the cruise control in order to arrive at the end destination on the desired traveling time with as low fuel consumption as possible.Type: GrantFiled: December 19, 2008Date of Patent: October 7, 2014Assignee: Volvo Lastvagnar ABInventors: Anders Eriksson, Johan Bjernetun
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Patent number: 8855861Abstract: Vehicle control systems that can be used, for example, to configure a vehicle (e.g., a lawn tractor or riding lawn mower) to make low- to substantially zero-radius turns. Some of the present vehicle control systems utilize at least one steered wheel position sensor to generate a signal that indicates the actual position of the steerable structure (e.g., wheel) to which the sensor is coupled, rather than a projected or anticipated position of that steerable structure. Vehicles that include such control systems.Type: GrantFiled: March 15, 2013Date of Patent: October 7, 2014Assignee: MTD Products IncInventors: Michael Goebel, Derek Kaesgen
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Patent number: 8849539Abstract: A method for determination of speed set-point values vref for a vehicle's control systems, includes determining a horizon from position data and map data of an itinerary made up of route segments with length and gradient characteristics for each segment; calculating threshold values for the gradient of segments according to one or more vehicle-specific values, which threshold values serve as boundaries for assigning segments to various categories; comparing the gradient of each segment with the threshold values and placing each segment within the horizon in a category according to the results of the comparisons; calculating speed set-point values vref for the vehicle's control systems across the horizon according to rules pertaining to the classes in which segments within the horizon are placed; adding an offset voffset to the calculated speed set-point values vref when the vehicle is in a segment which is in a category indicating a steep upgrade or a steep downgrade; regulating the vehicle according to the sType: GrantFiled: May 31, 2010Date of Patent: September 30, 2014Assignee: Scania CV ABInventors: Oskar Johansson, Jörgen Hansson
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Publication number: 20140288798Abstract: A control system for a vehicle including a brake pedal operable by a driver and an engine includes an electronic control unit. The electronic control unit is configured to: (a) execute cruise control, the cruise control selectively executed and stopped through an operation of the driver, (b) stop the engine upon depression of the brake pedal, when the cruise control is stopped, (c) stop the engine while the vehicle is being decelerated or stopped, even when the brake pedal is not depressed, when the cruise control is executed, and (d) keep the engine stopped even when the operation to stop the cruise control is performed, after the engine is stopped and the cruise control is executed.Type: ApplicationFiled: March 21, 2014Publication date: September 25, 2014Inventors: Yasushi Ando, Norikazu Okita, Hiroki Naganuma
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Patent number: 8843288Abstract: A system and method of operating a vehicle at a driver selected target speed. The system and method configured to identify a target speed based on a position of a gear shift selector and control engine torque and brake pressure to control the vehicle to operate at the target speed. The system and method is further provides manipulating the engine torque and brake pressure of the vehicle in response to a driver's throttle and brake commands to operate at a speed desired by the driver.Type: GrantFiled: June 24, 2013Date of Patent: September 23, 2014Assignee: Chrysler Group LLCInventors: Zachary C Rogalski, Ivan Roman, Loren M Trotter, Jason Trombley