Having A Plurality Of Preset Maps, Schedules, Or Patterns Patents (Class 701/56)
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Patent number: 8738250Abstract: Methods and systems for controlling a power source of a mobile machine having a continuously variable transmission (CVT) are disclosed. In one embodiment, the method includes receiving, from an operator of the mobile machine, input selecting of one of a plurality of target travel speeds of the mobile machine and input indicative of a requested output speed of the power source. The method further includes calculating a difference between the selected target travel speed and an actual travel speed of the mobile machine. Finally, the method includes adjusting the requested output speed of the power source based on the calculated travel speed difference, and commanding the power source based on the adjusted requested output speed of the power source.Type: GrantFiled: November 30, 2010Date of Patent: May 27, 2014Assignee: Caterpillar Inc.Inventor: Brian D. Hoff
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Patent number: 8725370Abstract: A vehicle control apparatus including: a bad-road control-mode switch configured to be manipulated by a driver; and a bad-road control section configured to perform a bad-road control when a bad-road control mode is selected by the bad-road control-mode switch, the bad-road control section including a shift changeover function configured to automatically change a shift state of vehicle between a forward running and a reverse running, and a driving-force applying section configured to reduce a driving force acting on a road-wheel when the shift state of vehicle is changed by the shift changeover function, and configured to apply a predetermined driving force to the road-wheel when a predetermined time has elapsed after the change of shift state, as the bad-road control.Type: GrantFiled: October 4, 2013Date of Patent: May 13, 2014Assignee: Hitachi Automotive Systems, Ltd.Inventor: Nobuyuki Ohtsu
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Patent number: 8725367Abstract: In a control apparatus and a control method for a vehicle automatic transmission in which a plurality of gears with different speed ratios are achieved by selectively engaging a plurality of friction engagement devices and a one-way clutch, if an acceleration request is made in the case where the one-way clutch is in an idling state when a first predetermined gear is to be achieved by engaging the one-way clutch, a pre-synchronization control is executed to transmit torque through a predetermined friction engagement device used to achieve a second predetermined gear at which the one-way clutch is maintained in an idling state, and to continue to change a rotational direction of the one-way clutch toward a rotational direction in which the one-way clutch is brought to a synchronized state, according to the acceleration request.Type: GrantFiled: July 20, 2009Date of Patent: May 13, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Takaaki Tokura, Hideaki Otsubo, Motonori Kimura
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Patent number: 8725368Abstract: A shift-by-wire system includes an incremental shift interface that generates an incremental shift signal. A rock control module enables a rocking mode and generates a rock control signal based on status of a vehicle parameter. The rocking mode includes shifting between a first mode and a second mode and back to the first mode. The first mode is one of a reverse mode and a drive mode and the second mode is the other one of the reverse mode and the drive mode. A shift interface module generates a shift control signal to shift a transmission of a vehicle between the first mode and the second mode based on the incremental shift signal and the rock control signal.Type: GrantFiled: February 3, 2011Date of Patent: May 13, 2014Inventor: Stephen Lewis Pudvay
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Patent number: 8718881Abstract: A system and method for efficiently regulating the fuel consumption of a variable speed combustion engine used to control loads such as a hoist motor in a mobile gantry crane based on load motor speed commands issued by a crane operator. The system and method can rely on a programmable logic controller to issue engine fuel commands to regulate engine speed based on interpolations derived from data representing the relationship between load motor voltage and engine speed and data representing the relationship between engine speed and engine power capacity. The method may also be used in modified form by combustion engines which need digital fixed speed commands.Type: GrantFiled: September 11, 2009Date of Patent: May 6, 2014Assignee: TMEIC CorporationInventors: Paul S. Bixel, Marcelo Andres Lara
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Patent number: 8718884Abstract: A method and associated system for compensation of vehicle speed lag resulting from changing load conditions in a continuously variable transmission (CVT) vehicle includes detecting and measuring true engine torque resulting from load changes placed on the vehicle engine. A true engine speed droop is calculated from the true engine torque. A compensated engine speed signal is generated based on the calculated true engine speed droop and is applied to the engine to produce a true engine speed that corresponds to a target engine speed at the load condition corrected for true engine speed droop.Type: GrantFiled: August 30, 2011Date of Patent: May 6, 2014Assignee: CNH Industrial America LLCInventor: Yanming Hou
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Publication number: 20140121920Abstract: The present invention provides a method of selecting and implementing a shift schedule for a transmission in a vehicle that includes an output speed sensor and a controller. The method includes measuring output speed with the output speed sensor and comparing the measured output speed to an output speed threshold. The controller receives throttle percentage and compares the throttle percentage to a throttle threshold. The method also includes calculating output acceleration and transmission gear ratio with the controller. The shift schedule is selected based on the measured output speed, calculated output acceleration, calculated transmission gear ratio, and throttle percentage.Type: ApplicationFiled: January 8, 2014Publication date: May 1, 2014Applicant: Allison Transmission, Inc.Inventors: Jeffrey E. Shultz, Jared S. Shattuck
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Patent number: 8712649Abstract: A transmission controller permits a 2-1 shift, in which a gear position of a subtransmission mechanism is changed from a second speed to a first speed, when an accelerator pedal has been depressed to or above a predetermined opening. The gear position of the subtransmission mechanism is changed from the second speed to the first speed when an actual through speed ratio passes a mode switch line from a High side to a Low side while the 2-1 shift is permitted in the subtransmission mechanism.Type: GrantFiled: March 19, 2010Date of Patent: April 29, 2014Assignees: Jatco Ltd, Nissan Motor Co., Ltd.Inventors: Tateki Jozaki, Hideaki Suzuki, Ryousuke Nonomura, Mamiko Inoue, Seiichiro Takahashi, Tatsuo Ochiai, Masato Koga, Masaaki Uchida, Ryoji Kadono
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Patent number: 8712654Abstract: The present invention provides a method of selecting and implementing a shift schedule for a transmission in a vehicle that includes an output speed sensor and a controller. The method includes measuring output speed with the output speed sensor and comparing the measured output speed to an output speed threshold. The controller receives throttle percentage and compares the throttle percentage to a throttle threshold. The method also includes calculating output acceleration and transmission gear ratio with the controller. The shift schedule is selected based on the measured output speed, calculated output acceleration, calculated transmission gear ratio, and throttle percentage.Type: GrantFiled: July 9, 2012Date of Patent: April 29, 2014Assignee: Allison Transmission, Inc.Inventors: Jeffrey E. Shultz, Jared S. Shattuck
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Publication number: 20140107900Abstract: The present invention provides a method of selecting and implementing a shift schedule for a transmission in a vehicle that includes an output speed sensor and a controller. The method includes measuring output speed with the output speed sensor and comparing the measured output speed to an output speed threshold. The controller receives throttle percentage and compares the throttle percentage to a throttle threshold. The method also includes calculating output acceleration and transmission gear ratio with the controller. The shift schedule is selected based on the measured output speed, calculated output acceleration, calculated transmission gear ratio, and throttle percentage.Type: ApplicationFiled: October 17, 2012Publication date: April 17, 2014Applicant: ALLISON TRANSMISSION INC.Inventors: Jeffrey E. Shultz, Jared S. Shattuck
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Patent number: 8694218Abstract: The present invention provides a method of selecting and implementing a shift schedule for a transmission in a vehicle that includes an output speed sensor and a controller. The method includes measuring output speed with the output speed sensor and comparing the measured output speed to an output speed threshold. The controller receives throttle percentage and compares the throttle percentage to a throttle threshold. The method also includes calculating output acceleration and transmission gear ratio with the controller. The shift schedule is selected based on the measured output speed, calculated output acceleration, calculated transmission gear ratio, and throttle percentage.Type: GrantFiled: March 24, 2009Date of Patent: April 8, 2014Assignee: Allison Transmission, Inc.Inventors: Jeffrey E. Shultz, Jared S. Shattuck
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Patent number: 8666620Abstract: A method of controlling an automated stepped transmission disposed in a drive train of a motor vehicle in conjunction with a turbo-charged internal combustion engine. In which the control of start-up and shifting procedures depends on the response behavior of the internal combustion engine. In order to enable control of the start-up and shifting processes with considerably lower coordination effort, the actual response behavior of the internal combustion engine is taken from an engine dynamics characteristic map in which the immediately available maximum torque (Mmax) of the internal combustion engine is stored as a function of the current engine torque (MM) and the current engine speed (nM, thus (Mmax=f(MM, nM)).Type: GrantFiled: November 16, 2009Date of Patent: March 4, 2014Assignee: ZF Friedrichshafen AGInventor: Roland Mair
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Patent number: 8666617Abstract: In a gear shift control unit for an automatic transmission, when an up-shift switch or a down-shift switch of a paddle shift switch is turned ON, a gear shift mode is set to a temporary manual shift mode, and a target transmission gear stage is shifted up or shifted down. Subsequently, a manual assist control is executed. In the manual assist control, an acceleration is calculated from a temporal differentiation of a vehicle speed. After it is detected that the acceleration is larger than or equal to an acceleration determination threshold, an accelerator pedal return acceleration is calculated from a double temporal differentiation of an accelerator opening degree. When the accelerator pedal return acceleration is smaller than or equal to another acceleration determination threshold, the current target transmission gear stage is automatically shifted down.Type: GrantFiled: November 28, 2011Date of Patent: March 4, 2014Assignee: Fuji Jukogyo Kabushiki KaishaInventors: Keisuke Ajimoto, Shinya Yasunaga, Masayuki Nishida, Hiroki Tanaka, Takahito Morishita
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Patent number: 8660764Abstract: A method for actuating a friction clutch, in particular for a motor vehicle drivetrain. The friction clutch is acted on with a clutch pressure generated by a hydraulic actuator arrangement which has an electrically actuable fluid source and which has a hydraulic actuator whose state is characterized by an actuator actual value. The actuator actual value is related to the clutch pressure. The method has the steps: forming a regulation-oriented model of the actuator arrangement, which model has at least one fluid source actuating variable as an input and at least the actuator actual value as a flat output and which model can be inverted; forming an inverse model of the actuator arrangement; and inputting an actuator nominal value into the inverse model and using the model actuating variable which emerges therefrom for actuating the fluid source.Type: GrantFiled: May 11, 2011Date of Patent: February 25, 2014Assignee: GETRAG Getriebe- und Zahnradfabrik Hermann Hagenmeyer GmbH & Cie KGInventors: Thomas Gorius, Joerg Meissner
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Patent number: 8657720Abstract: A shift control apparatus for a continuously variable transmission includes: a target transmission gear ratio setting section configured to set a target transmission gear ratio with reference to a map based on an accelerator opening degree and a vehicle speed; a shift control section configured to control a shift of the continuously variable transmission based on the target transmission gear ratio; and a downshift restricting section configured to judge whether or not a restriction of the downshift is needed based on at least one of a variation amount of the accelerator opening degree and an accelerator depression speed, and to perform the restriction of the downshift when the downshift restricting section judges that the restriction of the downshift is needed, irrespective of a variation of the accelerator opening degree inputted to the target transmission gear ratio setting section.Type: GrantFiled: December 12, 2012Date of Patent: February 25, 2014Assignee: JATCO LtdInventors: Tomoaki Kabe, Nobuhiko Morifuji, Keisuke Ichikawa, Nobuhide Kato, Yuki Ono, Hiromu Ogino, Yukinobu Sakakibara, Hisao Nakanishi, Takahiro Nakata, Mitsuki Ishizuka
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Publication number: 20140019022Abstract: The present invention provides a method of selecting an economy mode shift schedule for a transmission coupled to a motor vehicle. The method includes calculating vehicle acceleration and determining a change in accelerator pedal position. Also, a net tractive effort force of the vehicle is determined for a current gear range of the transmission. Also, the method includes comparing the net tractive effort force for the current gear range to a maximum tractive effort force for a desired gear range and selecting the economy mode shift schedule for the transmission based on the comparison. The method further includes controlling shifting between one or more gear ranges of the transmission according to the economy mode shift schedule.Type: ApplicationFiled: September 18, 2013Publication date: January 16, 2014Applicant: Allison Transmission Inc.Inventors: John Kresse, Robert Merrion
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Patent number: 8630778Abstract: A system and method for determining a required throttle position and operating a throttle in the required throttle position to attain a required engine speed for fuel cut acquisition is disclosed. A lock-up clutch may be engaged without a shock if a required engine speed is achieved that corresponds to a current transmission speed. Fuel economy may be increased by cutting fuel to the engine when a lock-up clutch is engaged.Type: GrantFiled: August 7, 2009Date of Patent: January 14, 2014Assignee: Honda Motor Co., Ltd.Inventor: Chris Hopp
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Patent number: 8617028Abstract: A system is provided for managing torque in a vehicle driveline coupled to an internal combustion engine and to a hybrid motor/generator. An engine control circuit provides to a transmission control circuit an engine torque value corresponding to torque applied by the engine to the driveline. A hybrid control circuit provides to the transmission control circuit a motor torque value corresponding to torque applied by the hybrid motor/generator to the driveline. The transmission control circuit controls operation of at least one friction device and controls shifting of the transmission, and also manages torque applied to the drive line by the engine and by the hybrid motor/generator based on the engine torque value and the motor torque value such that the friction device control and shift schedule instructions do not require modification to accommodate inclusion of the hybrid motor/generator in the system or exclusion of the hybrid motor/generator from the system.Type: GrantFiled: July 23, 2009Date of Patent: December 31, 2013Assignee: Allison Transmission, Inc.Inventors: John Kresse, Jeffrey Runde
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Patent number: 8612491Abstract: System and method for storing a dataset of image tiles.Type: GrantFiled: July 9, 2012Date of Patent: December 17, 2013Assignee: The United States of America, as represented by the Secretary of the NavyInventors: John T. Sample, Elias Z K Ioup
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Patent number: 8606474Abstract: A method and system for controlling a continuously variable transmission (CVT). In one embodiment, the method includes receiving vehicle operation data. The method also includes controlling engine and transmission operations based on the vehicle operation data, fuel efficiency data, and CVT efficiency data.Type: GrantFiled: June 11, 2007Date of Patent: December 10, 2013Assignee: Cummins Inc.Inventors: Linsong Guo, Tim R. Frazier
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Patent number: 8583309Abstract: When the gearshift position SP is the N position and the accumulated charge ratio SOC of the battery is less than or equal to the threshold value Slow (step S120), the engine is cranked by a first motor (the motor MG1) and started in the case that the vehicle stop is held (steps S140 and s150). After the engine is started, the shutoff of the inverter for driving the motor MG1 is performed and the self-sustained operation of the engine is performed at the rotation speed N1 at which the back electromotive force generated on the motor MG1 is more than the voltage applied to the inverters (steps S180 to S200).Type: GrantFiled: November 13, 2009Date of Patent: November 12, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventors: Keiji Kaita, Takahiko Hirasawa
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Patent number: 8583334Abstract: A method of determining an applied actuation touch point pressure value of a frictionally engaged shift element of a transmission at which transmission, via the shift element, is approximately zero, and an increase in pressure relates to an increase of the power transmission via the shift element. The method includes supplying a predefined pressure to the shift element at which power transmission is zero. Increasing the target pressure by an offset pressure to transfer the shift element into a predefined operating state which initiates time monitoring. Determining a characteristic of the actual pressure. After a testing time, a monitoring period is compared with a reference period. When the monitoring period is less than or equal to the reference period, the applied pressure is set to be equivalent with the target pressure.Type: GrantFiled: August 11, 2011Date of Patent: November 12, 2013Assignee: ZF Friedrichshafen AGInventors: Gerhard Hermann Martin, Wilfrid Eberhard, Bernd Ummer
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Patent number: 8566021Abstract: Methods and systems for generating, deriving, and enhancing drivable road databases are provided. A baseline road in a road network is defined and position and/or trajectory data collected by vehicles traveling the baseline road are compiled and compared to a representation of the baseline road in an existing database. Identity and/or other property information about the road are assigned form the existing database to the new database.Type: GrantFiled: August 31, 2012Date of Patent: October 22, 2013Assignee: Dash Navigation, Inc.Inventor: Brian Smartt
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Patent number: 8560188Abstract: A sport running estimated value LEVELSP obtained by searching a value on a map prepared in advance based on an average values AGYAVE of lateral accelerations GY of a vehicle and on average values of vehicle speed changes is calculated, and a vehicle speed on a shift map is searched based on the sport running estimated value LEVELSP and an estimated value DA of a vehicle gradient, whereby a downshift vehicle speed VA at which a downshift is implemented is calculated. Then, the downshift is implemented in a case where actuation of a brake is detected, deceleration of the vehicle is a predetermined value or more, and a current vehicle speed is a downshift vehicle speed VA or more. In such a way, running on a meandering road, for which the downshift and a subsequent shift hold should be implemented, is sensed appropriately.Type: GrantFiled: January 2, 2013Date of Patent: October 15, 2013Assignee: Honda Motor Co., Ltd.Inventors: Yutaka Ishikawa, Hiroshi Saito, Yasuhiro Gokan
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Patent number: 8532856Abstract: A hybrid electric vehicle has a controller, an engine, a traction motor, and a transmission. The controller is configured for calculating, using a costing function, the total system losses incurred at each operating point of the HEV, including the losses for each of the engine, the traction motor, and the transmission. The controller selectively modifies the calculated cost of at least one of the engine, the traction motor, and the transmission in a designated one of the transmission states as a function of transmission fluid temperature. An optimal transmission state is then selected as the state having the optimal cost relative to the other transmission states. Selectively modifying the calculated cost may include penalizing the cost of using designated transmission states when the measured fluid temperature exceeds certain calibrated temperature limits. Designated operating states may be disabled above an upper temperature limit to protect the transmission from overheating.Type: GrantFiled: November 7, 2011Date of Patent: September 10, 2013Assignee: GM Global Technology Operations LLCInventors: Jinming Liu, Lan Wang, Shannon E. Reeves, Jy-Jen F. Sah
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Patent number: 8521375Abstract: A transmission control device (7) of a transmission (3) for a drivetrain which includes, in addition to the transmission (3), a hybrid drive with an internal combustion engine (1) and an electric motor (2). The transmission control device (7) stores parameters which form the basis of the manner with which gearshifts are controlled or regulated. At least some parameters are stored in duplicate, firstly, for operating the transmission (3) under purely electric-motor power using only the electric motor (2), and secondly for operating the transmission (3) during hybrid driving using both the internal combustion engine (1) and the electric motor (2).Type: GrantFiled: July 23, 2009Date of Patent: August 27, 2013Assignee: ZF Friedrichshafen AGInventors: Bernd Allgaier, Friedrich Tenbrock, Michael Gromus
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Patent number: 8515630Abstract: A method for determining the output speed (N_AB) of a manual transmission of a motor vehicle. The output speed (N_AB) is calculated during a period of a shifting operation in which the current gear is disengaged and the new gear has yet to be engaged. The calculated output speed (N_AB) is used for controlling adjustment of the speed of the transmission input shaft (N_EG) to the speed of the transmission output shaft, or the calculated output speed (N_AB), is used for checking the plausibility of a value of the output speed (N_AB) as determined by the sensors.Type: GrantFiled: March 3, 2008Date of Patent: August 20, 2013Assignee: ZF Friedrichshafen AGInventors: Mario Steinborn, Rainer Petzold, Stefan Veittinger
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Patent number: 8515640Abstract: A device for determining, when driving a vehicle, a mapping of torque transmitted by a clutch of the automobile based on a position of a clutch control member. The device includes a mechanism updating the mapping based on position thresholds of the clutch control member. The updating modifies values of the thresholds based on minimum and maximum values of the positions of the control member stored in the mapping and on current values of the thresholds.Type: GrantFiled: July 21, 2008Date of Patent: August 20, 2013Assignee: Renault S. A. S.Inventors: Alessandro Monti, Richard Pothin, Christophe Desfriches
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Patent number: 8515639Abstract: The embodiments herein provide an automatic clutch system for automobiles. The system comprises a mechanical section and an electronic section. The mechanical section comprises a rail support base with a rail-shaped ridge installed, dynamic parts installed on the rail-shaped ridge, supporting arms, an elevator mechanism connected to the clutch pedal and a clutch pedal lever. The electronic section comprises an input section for placing the elevator mechanism in due place and a keyboard for regulation, a sensor circuit, a command circuit including microcontroller, an exit section for changing a position of the elevator mechanism, a feedback circuit including a rotary encoder and monitors. The command circuit processes an instruction data from the input resources based on the regulations set by the user and transmits a command to the output section to position the elevator mechanism.Type: GrantFiled: November 10, 2011Date of Patent: August 20, 2013Inventor: Mehdi Zaerin
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Patent number: 8515634Abstract: The present invention relates to a method of controlling a shift of an automatic transmission of a four-wheel low-speed drive vehicle, in which when a four-wheel low-speed drive mode is selected, it is possible to accomplish an appropriate operational condition for the four-wheel low-speed drive mode that can realize a variety of operational conditions of the vehicle while effectively limiting additional use of memories for storing shift patterns, by controlling a shift point of the automatic transmission to be appropriate for the four-wheel low-speed drive mode with appropriate change in a basic shift pattern according to a basic operational condition to consider together with the four-wheel low-speed drive mode without separately using a specific shift pattern and by controlling the apply and release parts to be appropriate for the control of the shift point, thereby it is possible to ensure a stable and smooth shift.Type: GrantFiled: July 11, 2007Date of Patent: August 20, 2013Assignee: Kefico CorporationInventors: Byungjun Kim, Taekyoung Lee
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Patent number: 8494730Abstract: A power transmitting apparatus includes a clutch that operates based on pressure of a fed fluid to adjust a mode of power transmission of an engine or/and a motor/generator on a power transmission route, a first driving pump that feeds the fluid to the clutch by being driven in accordance with rotation of the motor/generator, and a second driving pump that feeds the fluid to the clutch by being driven in accordance with electric power, wherein a first engagement unit and a second engagement unit can be caused to engage rapidly or slowly by selecting one of the first driving pump and the second driving pump as a source of the fluid, and when a drive request of the clutch is present and a rotation speed of the motor/generator is lower than a predetermined rotation speed, the first engagement unit and the second engagement unit are caused to engage rapidly by feeding the fluid from the second driving pump.Type: GrantFiled: January 29, 2010Date of Patent: July 23, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventor: Masato Yoshikawa
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Patent number: 8467943Abstract: A method is provided for controlling a work machine during operation in a repeated work cycle including the steps of establishing a control strategy on the basis of at least one condition that varies in the course of the work cycle, and controlling at least one device in a work machine power transmission system in response to the established control strategy.Type: GrantFiled: May 10, 2007Date of Patent: June 18, 2013Assignee: Volvo Construction Equipment ABInventors: Jan Dersjö, Björn Brattberg
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Publication number: 20130144485Abstract: An automatic transmission for shift-by-wire that includes a transmission that is selectively operated by a plurality of traveling-drive modes relating to shifting, a shift lever that includes a tiltable handle and a tilt sensor that senses tilting of the handle, and a control unit that calculates tilting information on the basis of a tilting signal sensed by the tilt sensor, selects one of the traveling-drive modes by using the calculated tilting information, and sets the transmission to be operated in the selected traveling-drive mode. As described above, it is possible for a driver to easily perform an operation for changing drive modes while driving, by changing the drive modes by using a tilting operation of a shift lever, such that the drive safety can be improved.Type: ApplicationFiled: June 5, 2012Publication date: June 6, 2013Applicants: Hyundai Motor Company, SL Corporation, Kia Motors CorporationInventors: Jeehyuck Choi, Yangrae Cho, Kwanggi Lee, Dongjae Kim
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Publication number: 20130138308Abstract: A control device of a motor vehicle for controlling a gear change in a transmission of the motor vehicle by generating control signals for transmission shift elements utilized during a gear change. If a gear increment of the gear change to be performed is greater than two gears, and/or if the driver activates a sport gear shift program, and/or if a detection device detects a sporty type of driver, and/or if the driver actuates a kickdown of an accelerator pedal, and/or if the driver actuates the accelerator pedal with a temporal gradient that is greater than a defined limit, the control device generates control signals for the shift elements, being utilized for performing the gear change, with an interruption of tractive force, and the control device, in all other instances, generates control signals for the shift elements, being utilized for performing the gear change, without interrupting the tractive force.Type: ApplicationFiled: November 12, 2012Publication date: May 30, 2013Applicant: ZF FRIEDRICHSHAFEN AGInventor: ZF FRIEDRICHSHAFEN AG
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Patent number: 8452497Abstract: A method of controlling a shifting operation in an automatic transmission of a commercial vehicle. A targeted gear and an associated target rotational speed are determined, via a transmission control, depending on predetermined parameters, and the shifting operation is executed upon reaching a determined shifting rotational speed. A shift interlock is activated, at least temporarily, during a downshifting operation when, upon reaching the shifting rotational speed, the determined target rotational speed lies below a predetermined rotational speed limit.Type: GrantFiled: June 18, 2009Date of Patent: May 28, 2013Assignee: ZF Friedrichshafen AGInventors: Ulrich Reith, Werner Wolfgang, Bertram Wengert, Maik Wurthner
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Patent number: 8452501Abstract: Sugar cane harvester automatic cutter height control systems maintain consistent cutter heights even as a harvesting machine traverses changing field conditions. After an operator chooses an initial cutting height the automatic systems maintain that height even as ground conditions change.Type: GrantFiled: November 9, 2011Date of Patent: May 28, 2013Assignee: Trimble Navigation LimitedInventors: Arthur F Lange, Eric A Wuestefeld
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Patent number: 8447454Abstract: A method and apparatus for controlling driving means which are designed to steer and move a robot vehicle (3) that is designed as a lawn mowing vehicle. The driving means are controlled so that the robot vehicle (3) travels through several sections (2) of a working area (8) in a specific movement pattern according to a section travel strategy with the help of dead reckoning such that two adjoining course sections (5) overlap with a predefined probability transversely to the direction of travel of the robot vehicle (3).Type: GrantFiled: December 9, 2008Date of Patent: May 21, 2013Assignee: Robert Bosch GmbHInventors: Peter Biber, Amos Albert
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Patent number: 8442731Abstract: A control system for an electronically controlled continuously variable transmission of a straddle type vehicle in which an intentional shift down operation is easily made in an AT mode. An MT mode temporarily selecting section makes the gear change mode selecting section select the MT mode temporarily and makes the gear ratio control section change the gear ratio of the transmission to a gear ratio from among a plurality of predetermined gear ratios that is positioned lower than a current gear ratio when a mode change signal is inputted in AT mode. An AT mode returning section returns the gear change mode selected by the gear change mode selecting section to AT mode when a release signal is outputted after MT mode is temporarily selected by the MT mode temporarily selecting section.Type: GrantFiled: February 28, 2008Date of Patent: May 14, 2013Assignee: Yamaha Hatsudoki Kabushiki KaishaInventor: Toshio Unno
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Patent number: 8433455Abstract: A method for predicting the remaining travel distance of an electric vehicle. The method includes determining a useable battery energy value based on battery state-of-charge and battery capacity and a power value needed to heat or cool a vehicle cabin. The method determines an available battery energy value based on the useable battery energy value and an estimated energy value to provide the vehicle cabin heating or cooling, where the estimated energy value is determined using the power value. The method determines a recent energy used value based on an actual recent HVAC energy used value, a recent energy used value with no HVAC system loads and a recent energy used value with maximum HVAC system loads. The method determines a recent distance traveled value and determines the range by dividing the recent distance traveled value by the recent energy used value and multiplying by the available battery energy value.Type: GrantFiled: August 8, 2011Date of Patent: April 30, 2013Assignee: GM Global Technology Operations LLCInventors: Teddy Siy, Matthew A. Herrmann, Todd P. Lindemann, Jason P. Hafer
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Patent number: 8428833Abstract: An engine control device detects the state of work of a working vehicle such as a construction machine or the like, and controls the power output capacity of an engine automatically. A determination is made as to whether excavation or uphill traveling is being performed, based upon the detection signals from a hydraulic oil pressure detector for a hydraulic cylinder of an arm, detectors for arm and bucket operation commands, a shift operation detector for a transmission, a pitch angle detector for the vehicle body, a traveling acceleration detector, and an accelerator opening degree detector. When the result of this determination is that excavation or uphill traveling is being performed, the engine is controlled to operate at a high power capacity, while at other times it is controlled to operate at a low power output capacity.Type: GrantFiled: June 2, 2011Date of Patent: April 23, 2013Assignee: Komatsu Ltd.Inventor: Eiji Toda
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Patent number: 8423213Abstract: A vehicle control device for controlling a vehicle drive apparatus, the vehicle control device configured with a phase determining mechanism that determines the end of the torque phase in a shift operation, and a rotary electrical machine control mechanism that controls the torque of the rotary electrical machine using a variation of input torque. The vehicle control device is also configured with an engagement control mechanism that provides feedback controlling supplied oil pressure to an engagement side element as an engagement element on a side to be engaged after switching of shift speeds so that the rotation speed change rate of the input member becomes the target rotation speed change rate.Type: GrantFiled: September 10, 2010Date of Patent: April 16, 2013Assignee: Aisin AW Co., Ltd.Inventors: Kohei Tsuda, Yomei Hakumura, Masahiro Asai, Yoichi Tajima, Tomokazu Ito
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Publication number: 20130080002Abstract: A method of operating a transmission system of an automotive vehicle, the transmission system including a mechanism of mechanically coupling first and second axles of the transmission system, a status of the coupling mechanism defining a number of transmission modes. In the method, if the automotive vehicle crosses a speed threshold for a determined length of time, for example between 30 seconds and two minutes, the transmission system switches from a first mode in which the torque that can be transmitted by the mechanical coupling mechanism is fixed, into a different transmission mode.Type: ApplicationFiled: April 11, 2011Publication date: March 28, 2013Inventors: Pascal Febrer, Nicolas Romani, Philippe Saint Loup
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Patent number: 8406973Abstract: The present invention provides a driving force control unit for a vehicle having an accelerator opening degree detecting unit for detecting accelerator opening degree, a driving condition detecting unit for detecting engine driving condition, a driving force setting unit for setting a driving force indication value according to a plurality of different driving force characteristics based on the accelerator opening degree and the engine driving condition, a selector for selecting a driving force characteristic from the plural of different driving force characteristics by manipulation. The driving force setting unit setting the driving force indication value according to the selected driving force characteristic.Type: GrantFiled: April 6, 2007Date of Patent: March 26, 2013Assignee: Fuji Jukogyo Kabushiki KaishaInventors: Toshio Masuda, Kenichi Yamamoto, Kenji Hijikata, Satoshi Satomura, Hiroshi Oishi, Toyohide Sunaguchi, Yoshio Iwakami, Munenori Homma, Atsushi Atake, Kouji Kaneda, Tatsuru Fukuda, Minoru Yuki, Masayuki Ushiki, Tsuyoshi Kobayashi, Masahito Motoi, Naoki Shibata, Hiroshi Ogiwara, Katsumasa Igarashi, Junzo Shinozuka, Akihisa Nakamura
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Publication number: 20130073156Abstract: Shift controlling apparatus for a vehicle which automatically carries out changeover between a plurality of shift gear stages based on an automatic shift map including a drive mode shift map and a sport mode shift map having an increased region in which a speed change ratio is low compared to the drive mode shift map and corresponds to more sporty operation than that of the drive mode shift map. The drive mode shift map has a first mode portion and a second mode portion having an increased region in which the change gear ratio is low compared to the first mode portion, but smaller than the increased region of the sport mode shift map. Changeover between the first and second mode portions is carried out based on an acceleration history in accordance with a throttle opening of the vehicle.Type: ApplicationFiled: September 13, 2012Publication date: March 21, 2013Applicant: HONDA MOTOR CO., LTD.Inventors: Yoshiaki TAKEUCHI, Yukio YOKOGAWA, Eiji KITTAKA
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Publication number: 20130073155Abstract: An autofunction control system for motor vehicles comprising an engine, a transmission and an accelerator, the position of the accelerator defining a set ERPM, the system configured to define a desired percentage of maximum available power for each set ERPM, the system configured to control the transmission ratio of the transmission to load the engine at least to the desired percentage of power, wherein the desired percentage of power is a function of the set ERPM when the set ERPM is between a low threshold and a high threshold, and wherein the system is configured to control the transmission ratio to load the engine closest to the maximum available absolute power for the engine for a set ERPM above the high threshold ERPM.Type: ApplicationFiled: January 12, 2011Publication date: March 21, 2013Applicant: CNH America LLCInventors: Gianluca Conti, Rocco Petrigliano
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Publication number: 20130060434Abstract: Disclosed is a vehicle gear-shifting control apparatus (1) performing cruise control which automatically controls output to basically maintain a set vehicle speed set based on a human operation and enables temporary acceleration based on an accelerator pedal operation, the vehicle gear-shifting control apparatus having: a plurality of shift maps to which a priority ranking is set, the shift maps including a cruise shift map used at a time of cruise control and a shift map used at a time of normal traveling; and a plurality of patterns in which the priority rankings of the plurality of shift maps are different from each other, wherein, during traveling, the pattern is selectively changed based on an accelerator pedal operation humanly operated.Type: ApplicationFiled: May 16, 2011Publication date: March 7, 2013Applicant: SUZUKI MOTOR CORPORATIONInventors: Yuta Kiuchi, Hiroshi Kamatsuke
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Publication number: 20130046450Abstract: A control system for shifting an automatic transmission for a motor vehicle is provided. The control system is connected to a drive engine and a drive train. The control system includes a speed sensor configured for sensing a vehicle speed, an angular sensor configured for sensing an angle of an accelerator pedal of the motor vehicle, an acceleration sensor configured to sense an acceleration of the accelerator pedal, and a control electronic device configured for selecting a predetermined shifting curve for shifting the automatic transmission. The control electronic device also is configured to select from different shifting modes by measurement data of the speed sensor, angular sensor, and acceleration sensor.Type: ApplicationFiled: August 14, 2012Publication date: February 21, 2013Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Martin GENTILE, Gernot BECKER
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Patent number: 8380404Abstract: A control method for controlling, during a gear shifting or during a drive-away, a vehicle provided with an automatic manual transmission, the control method including the steps of: determining, in a design phase, a transmissibility function of a clutch, which provides the torque which is transmitted by clutch according to the degree of opening of clutch itself, determining an engine model in a design phase, determining a target torque which must be transmitted by means of clutch during the gear shifting or during the drive-away, controlling clutch for pursuing target torque which must be transmitted by means of clutch by using the transmissibility function, determining a target engine torque of engine according to target torque which must be transmitted by means of clutch and controlling the engine to pursue a target engine torque by using a feedforward control based on the engine model.Type: GrantFiled: April 6, 2010Date of Patent: February 19, 2013Assignee: Ferrari S.p.A.Inventors: Francesco Marcigliano, Alessandro Barone, Davide Montosi
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Patent number: 8371985Abstract: A continuously variable transmission 4 for a vehicle includes a variator 20 that modifies a speed ratio continuously and a subtransmission mechanism 30 that is connected in series to the variator 20 and applies a first speed and a second speed, which is higher than the first speed, selectively. When the vehicle is running under a low load/high speed upshift condition having a lower load or a higher speed than a normal upshift condition, the subtransmission mechanism 30 is upshifted from the first speed to the second speed at a lower vehicle speed than under the normal upshift condition, and as a result, both rotation variation in an internal combustion engine 1 accompanying upshifting of the subtransmission mechanism 30 and an increase in a fuel consumption amount of the internal combustion engine 1 due to the shift operation in the continuously variable transmission 4 are suppressed.Type: GrantFiled: July 15, 2010Date of Patent: February 12, 2013Assignees: Nissan Motor Co., Ltd., Jatco LtdInventors: Seiichiro Takahashi, Hiroyasu Tanaka, Ryousuke Nonomura, Jouji Seki, Takuichiro Inoue, Mamiko Inoue, Tatsuo Ochiai
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Patent number: 8374758Abstract: A powertrain system includes an engine mechanically coupled to an electro-mechanical transmission selectively operative in one of a plurality of transmission operating range states and one of a plurality of engine states. A method for controlling the powertrain system includes determining a current transmission operating range state and engine state, determining at least one potential transmission operating range state and engine state, determining preferability factors associated with the current and potential transmission operating range state and the engine state wherein the preferability factors associated with potential transmission operating range states include transmission input speed trip preferability factors, preferentially weighting the preferability factors for the current transmission operating range state and engine state, and selectively commanding changing the present transmission operating range state and engine state based upon the preferability factors.Type: GrantFiled: September 24, 2008Date of Patent: February 12, 2013Assignees: GM Global Technology Operations LLC, Daimler AG, Chrysler Group LLC, Bayerische Motoren Werke AktiengesellschaftInventors: Anthony H. Heap, Kee Yong Kim, Jason J McConnell