Hysteresis Patents (Class 477/128)
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Patent number: 10936109Abstract: A terminal device sends a directional signal in a direction in which a to-be-controlled device is located, the to-be-controlled device establishes a transmission channel between the to-be-controlled device and the terminal device according to the directional signal, the to-be-controlled device returns a response signal to the terminal device after receiving the directional signal, and the terminal device controls, according to the response signal, an application program corresponding to the to-be-controlled device to start. In this way, a process in which the user uses the terminal device to control the to-be-controlled device, and searches for an application program of the to-be-controlled device is simple, and many application programs do not need to be searched one by one for the required application program.Type: GrantFiled: March 31, 2016Date of Patent: March 2, 2021Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Zijun Li, Fen Yang, Chen Sheng
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Patent number: 10837550Abstract: A straddled vehicle includes a gear position sensor abnormality detector which is configured to detect an abnormality of a gear position sensor which is provided at a crankshaft-supporter-integrated transmission supporter. The gear position sensor abnormality detector determines that the gear position sensor has an abnormality when the shift of a straddled vehicle from a stopped state to a running state is detected based on a signal from a rotation speed sensor while the gear position detected by the gear position sensor is included in a high-speed gear position class. Furthermore, the gear position sensor abnormality detector determines that the gear position sensor has an abnormality when the gear position detected by the gear position sensor is included in a low-speed gear position class and is different from a gear position estimated based on a signal from a crankshaft sensor and a signal from the rotation speed sensor.Type: GrantFiled: May 31, 2019Date of Patent: November 17, 2020Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventor: Kosei Maebashi
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Patent number: 9593767Abstract: A shift control device for an electrically driven vehicle, which is installed in the electrically driven vehicle including a motor as a drive source and an automatic transmission coupled to an output shaft of the motor, has a shift controller that performs shifting of the automatic transmission using a previously set shift line. The shift controller has, as the shift line, an electricity consumption prioritized shift line with priority placed to improve electricity consumption rate, and a driving force prioritized shift line with priority placed to suppress the frequency of shifting. The driving force prioritized shift line is used for a predetermined time after completion of the shift control using the electricity consumption prioritized shift line.Type: GrantFiled: December 27, 2013Date of Patent: March 14, 2017Assignee: NISSAN MOTOR CO., LTD.Inventors: Atsushi Tsukizaki, Ryohey Toyota, Toshifumi Hibi, Yutaka Kaneko
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Patent number: 8935064Abstract: A control device of a vehicular automatic transmission determines, during shifting to a first target gear position, whether the transmission should be shifted to a second target gear position that is remote from the current gear position than the first target gear position, and determines whether a gearshift to the first target gear position was executed during shifting to a third target gear position. If it is determined that the transmission should be shifted to the second target gear position during a multiple gearshift to the first target gear position which is started during shifting to the third target gear position, a multiple gearshift to the second target gear position is inhibited. If it is determined that the transmission should be shifted to the second target gear position during a single gearshift to the first target gear position, the multiple gearshift to the second target gear position is permitted.Type: GrantFiled: January 29, 2010Date of Patent: January 13, 2015Assignee: Toyota Jidosha Kabushiki KaishaInventors: Nobufusa Kobayashi, Yoshio Hasegawa
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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: 8180536Abstract: During control of a shift of a first friction engagement element from an engaged state into a disengaged state and a shift of a second friction engagement element from a disengaged state into an engaged state for a gear shift to a first target gear from a second target gear, a desired torque capacity of the first friction engagement element is set based on an actual transmission gear ratio by interpolation from values of the desired torque capacity corresponding to at least first and second reference transmission gear ratios, wherein the first reference transmission gear ratio is a transmission gear ratio at start of an inertia phase of the shift control. When the first reference transmission gear ratio is between the actual transmission gear ratio and the second reference transmission gear ratio, the desired torque capacity is set to the value corresponding to the first reference transmission gear ratio.Type: GrantFiled: June 10, 2009Date of Patent: May 15, 2012Assignee: Jatco LtdInventors: Masami Suzuki, Goh Endo
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Publication number: 20080293541Abstract: An automatic transmission control system includes a shift map that includes predetermined ranges of vehicle speeds at which vehicle engine speeds require gear shifts for the automatic transmission based on requests for torque. The predetermined ranges include upper bounds that correspond to gear upshifts and lower bounds that correspond to gear down shifts. A shift map control module varies at least one of the predetermined ranges of vehicle speeds based on at least one vehicle condition that affects movement of the vehicle.Type: ApplicationFiled: May 25, 2007Publication date: November 27, 2008Inventors: Fadi S. Kanafani, Brian P. Gebby, Michael J. Prucka
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Patent number: 6896636Abstract: The oil supply device for a change-under-load transmission having a high-pressure circuit and a low-pressure circuit is designed in such a manner that the high-pressure feed line to the consumer devices of the transmission system incorporates an inlet aperture of small size, the low-pressure feed line is connected between the inlet aperture and the consumer device, and the low-pressure feed line can be cut off from the high-pressure feed line by a one-way valve.Type: GrantFiled: January 27, 2003Date of Patent: May 24, 2005Assignee: ZF Friedrichshafen AGInventor: Winfried Fideler
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Patent number: 6668217Abstract: A method for power optimization in a vehicle/train is proposed, using time reserves which are included when planning a schedule, an overall route to be traveled between a starting stop and a destination stop being subdivided into a number of steps. In order to achieve a power-saving travel mode, with the aid of an optimization algorithm, the kinetic energy of the vehicle and the time are used as state variables in a vehicle model. The changes in the state variables are considered with respect to the distance in each step.Type: GrantFiled: August 9, 2002Date of Patent: December 23, 2003Assignee: Bombardier Transportation GmbHInventors: Rudiger Franke, Peter Terwiesch, Markus Meyer, Christian Klose, Karl-Hermann Ketteler
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Patent number: 6205390Abstract: A method of determining the shift lever position of an electronic automatic transmission system by identifying the mode of transmission operation selected by the driver of the vehicle to provide hysteresis between the park, reverse, neutral, drive and low positions, to permit improved performance and response of the controller and to permit limited operation of the controller upon the occurrence or detection of a fault effecting the performance of the transmission. Such faults include the loss of a PRND2L sensor and the loss of one or more sensors indicative of the dynamics of the vehicle or hydraulic circuit.Type: GrantFiled: April 1, 1999Date of Patent: March 20, 2001Assignee: DaimlerChrysler CorporationInventors: Gerald L. Holbrook, Andrew J. Harkenrider, Michael J. McNeil
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Patent number: 5785629Abstract: The proposal is for a process for controlling an automatic transmission in which, on the basis of a speed-change demand, an electronic control device determines a mode of changing (F1, F2, F3), compares an existing operation point with a theoretical operation point in which the theoretical operation point depends upon the mode of changing and selects a first or second change range.Type: GrantFiled: November 15, 1996Date of Patent: July 28, 1998Assignee: ZF Friedrichshafen AGInventors: Georg Gierer, Wolfgang Wiest
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Patent number: 5400678Abstract: A method is provided for use in a vehicle including an automatic transmission having at least one load carrying friction element, such as clutch, of optimizing the line pressure in the transmission by slipping the weakest friction element by a small amount. The method includes the steps of decreasing the line pressure from a predetermined base pressure to allow for incipient slip across the weakest friction element and then increasing the line pressure to obtain a temporary pressure at which the weakest friction element is no longer slipping. The method also includes the step of further increasing the line pressure from the temporary pressure to obtain an operating line pressure. Preferably, the operating line pressure provides the weakest friction element with additional capacity for transmitting torque without slip for normal driving conditions, i.e. sensed vehicle throttle positions within a predetermined hysteresis band.Type: GrantFiled: October 30, 1992Date of Patent: March 28, 1995Assignee: Ford Motor CompanyInventors: Pramod K. Jain, Andrew Paredes
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Patent number: 5396420Abstract: In a control unit for automatic transmissions of motor vehicles, shifting points of a transmission are determined from performance graphs. Through the use of an evaluation circuit, a driving style of a driver is recorded and taken into account in determining the shifting points of the transmission. An operating mode can be initiated by the driver, and during the operating mode, shifting points that are manually selected by the driver are stored permanently in memory for calling up the shifting points as desired.Type: GrantFiled: May 15, 1992Date of Patent: March 7, 1995Assignee: Siemens AktiengesellschaftInventor: Friedrich Graf
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Patent number: 4659626Abstract: In a magnetic recording medium consisting of a base coated with a magnetic coating material, or a dispersion of magnetic particles in a resinous binder, the binder comprises a copolymer composed of vinyl chloride, a vinyl alkylcarboxylate, another monomer copolymerizable with vinyl chloride, and a saponified vinyl alkylcarboxylate and having an OH/CH absorption ratio according to the infrared absorption spectrum of 0.2 to 0.7, a polyurethane resin having in its molecule a --SO.sub.3 M group wherein M represents an alkali metal atom, and a polyurethane resin or polyester resin or both containing no --SO.sub.3 M group wherein M represents an alkali metal atom, and a polyisocyanate.Type: GrantFiled: July 1, 1985Date of Patent: April 21, 1987Assignee: TDK CorporationInventors: Kiyoto Fukushima, Shigeru Takamatsu, Eiji Kitaura