Responsive To Thermal Conditions Patents (Class 318/471)
  • Patent number: 10404201
    Abstract: A capacitor current estimating unit estimates a capacitor current based on phase currents. A capacitor temperature estimating unit estimates a capacitor temperature based on the capacitor current. A motor controller can accurately estimate not only a temperature of a switching element but also the capacitor temperature based on the phase currents. As a result, the capacitor does not need to have excessive heat characteristics. Further, a current limiting unit limits a current flowing from a battery to an inverter based on the capacitor temperature. Therefore, an amount of temperature change is not over-estimated due to overheating of the capacitor. As a result, excessive current limitation can be avoided and the performance of the motor can be demonstrated.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: September 3, 2019
    Assignee: DENSO CORPORATION
    Inventors: Ryo Kano, Takashi Suzuki
  • Patent number: 10384320
    Abstract: A position compensation system of a tool changer includes a storage unit for storing a coordinate indicating a reference position of a turret, a rotary position coordinate detector for detecting the rotary position coordinate of the turret, a compensation necessity determiner for determining whether or not it is necessary to perform a rotational compensation to return the turret to the reference position, in accordance with a rotational deviation of the detected rotary position coordinate from the stored rotary position coordinate, and a compensation request part for requesting an operation or work related to the rotational compensation when it is determined that the rotational compensation needs to be performed.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: August 20, 2019
    Assignee: FANUC CORPORATION
    Inventor: Yuuzou Inaguchi
  • Patent number: 10307855
    Abstract: A welding-type system with a programmed controller and alert devices for alerting a user as to the impending thermal shutdown of the welding-type system.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: June 4, 2019
    Assignee: Illinois Tool Works Inc.
    Inventors: Milad Pashapour Nikou, Craig Steven Knoener, Daniel James Helein, Alan Manthe
  • Patent number: 10262780
    Abstract: Analytical instrument inductors are provided that can include bundled wired conductive material about a substrate. Analytical instrument inductors are also provided that can include: a tubular substrate defining a plurality of flanges extending outwardly from a core of the substrate wherein opposing flanges define portions of the core; at least one pair of wires wound about a first portion of the core and between at least two flanges, the pair of wires extending to and wound about a second portion of the core; and wherein the one pair of wires are operatively coupled to an analytical instrument to provide inductance. Methods for preparing an instrument inductor are provided. The methods can include bundling wires about and within multiple exterior openings of a hollow-cored substrate; and connecting each of the bundles across the openings.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: April 16, 2019
    Assignee: FLIR Detection, Inc.
    Inventor: Kevin Rosenbaum
  • Patent number: 10262823
    Abstract: A relay control method is provided for controlling an in-vehicle motor that includes a steering angle main control module. The main control module has a power supply relay is connected to a battery, a motor drive circuit connected to a fixed contact of the power supply relay via a bus bar, and a phase relay connected to the motor drive circuit via a bus bar. The motor drive circuit contacts a heat radiation part that has a higher thermal conductivity than the power supply relay. After the ignition is turned off and with the switches for the power supply relay and the phase relay remaining in the on state, a motor energization control is performed for maintaining a rotation stop state in the motor for a predetermined time, and after the predetermined time has elapsed, the switch of the power supply relay is switched to off.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: April 16, 2019
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Taku Suzuki, Takafumi Kamemura, Yuki Miyashita, Masaki Shibuya, Hirotaka Mori, Tsubasa Tamura
  • Patent number: 10256764
    Abstract: The invention relates to a method for determining a rotor temperature of an electric motor, in particular an asynchronous motor, the rotor temperature being determined at least in accordance with reactive powers and/or in accordance with losses of the electric motor. A first rotor temperature is determined in accordance with the reactive powers and, depending on an operating range of the electric motor, plausibility-checked or replaced by a second rotor temperature, which is determined in accordance with the losses.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: April 9, 2019
    Assignee: Robert Bosch GmbH
    Inventor: Wei-Lung Lee
  • Patent number: 10251136
    Abstract: There is provided a control device, including: a control unit that controls a transmit power of a transmission device, on a basis of a temperature acquired by a sensor provided in the transmission device. The transmit power varies depending on the temperature.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: April 2, 2019
    Assignee: SONY MOBILE COMMUNICATIONS INC.
    Inventor: Manabu Kanno
  • Patent number: 10222359
    Abstract: The invention relates to methods for verification of correct function of sampling equipment is disclosed, wherein said method comprises the steps of: a) providing a pump assembly (1) comprising an inlet (2) and an outlet (3), a flow channel (4) extending between said inlet (2) and outlet (3), a pump located along said flow channel (4) adapted to force an gas flow through said flow channel (4), a first mass flow sensor (6) located inside said flow channel (4), a first pressure sensor (7) located near said first mass flow sensor (6) adapted to measure a first pressure inside said flow channel (4), and a second pressure sensor (8) located outside said flow channel (4), said second pressure sensor (8) being adapted to measure a second pressure being the ambient atmospheric pressure, b) calculating the pressure difference between said first pressure and said second pressure c) calculating any error in an output signal from the mass flow meter by comparing said pressure difference with a value in a pre-calibrated t
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: March 5, 2019
    Assignee: PROVTAGAREN AB
    Inventors: Gunnar Skarping, Marianne Dalene
  • Patent number: 10185274
    Abstract: A motor connection detecting device includes: a bipolar stepping motor; a motor driver adapted to control current to be supplied to the bipolar stepping motor; and a controller connected to the bipolar stepping motor and the motor driver. The controller detects voltage of regenerative current generated during motor ON time in which current flows in the bipolar stepping motor, and determines abnormal connection of the bipolar stepping motor. The detected voltage is voltage generated during a fast decay period according to a current attenuation method of the regenerative current.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: January 22, 2019
    Assignee: Ricoh Company Ltd.
    Inventors: Hiroshi Okamura, Tomohide Kondoh, Hayato Fujita
  • Patent number: 10183547
    Abstract: An idle stop control system and method for a vehicle includes at least one electronic control unit disposed within the vehicle that is configured to determine whether an idle stop condition for the vehicle is satisfied and whether the vehicle is in a stopped condition. The at least one electronic control unit is further configured to idle stop an engine of the vehicle when determined that both the idle stop condition is satisfied and that the vehicle is in the stopped condition. The at least one electronic control unit is also configured to determine whether an engine restart condition is satisfied after the engine is idle stopped and to restart the engine when determined that the engine restart condition is satisfied.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: January 22, 2019
    Assignee: HONDA MOTOR CO., LTD
    Inventors: Chris Hall, Junichi Kanemaru
  • Patent number: 10184680
    Abstract: A method for controlling air volume including: inputting a target air volume into the microprocessor control unit of the motor controller; starting a motor by the motor controller under a torque to enable the motor to work in a steady state; recording the rotational speed in the steady state, and establishing a functional relation formula Q=F (T, n, V) to calculate an air volume in the steady state; comparing the target air volume with the calculated air volume; re-recording a steady rotational speed after the motor falls on a new steady state under an increased or reduced torque, and recalculating the air volume in the new steady state; and repeatedly adjusting the torque until the calculated air volume is equal or equivalent to the target air volume.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: January 22, 2019
    Assignee: ZHONGSHAN BROAD-OCEAN MOTOR CO., LTD.
    Inventors: Ge Hu, Xiansheng Zhang
  • Patent number: 10185302
    Abstract: A method for operating a gear cutting machine comprising the following steps: machining a first workpiece (1) in the machine, wherein the first workpiece (1) heats up due to the machining, determining at least one characteristic workpiece variable in the first workpiece (1) in the heated state, wherein a measuring device of the machine is used for the determination, determining a compensation on the basis of the at least one characteristic workpiece variable of the first workpiece (1) and at least one characteristic workpiece variable of a reference workpiece, wherein the characteristic workpiece variable of the reference workpiece is determined in the machine after a steady-state temperature has been reached, at least one compensation value is determined in the course of determining the compensation, adjusting of the machine setting by taking into account the at least one compensation value, and machining a further workpiece (2) in the machine.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: January 22, 2019
    Assignee: KLINGELNBERG AG
    Inventors: Jürgen Weber, Karl-Martin Ribbeck, Herbert Blasberg
  • Patent number: 10178808
    Abstract: A method and an information handling system for selecting or scaling system performance. The method of scaling performance of an information handling system includes a controller receiving component data that identifies a heat removal effectiveness of a cooling component, selecting a performance characteristics of the information handling system based on the received component data, and adjusting the operating parameters of the information system to achieve the selected performance characteristics and heat removal capability. The controller communicates with the cooling component through a serial signal bus. The cooling component includes a cooling device and storage.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: January 8, 2019
    Assignee: Dell Products, L.P.
    Inventors: Travis C. North, Austin Michael Shelnutt, Christopher M. Helberg
  • Patent number: 10137044
    Abstract: According to the present disclosure, a patient support system includes a patient support surface having an air fluidizable section and a sensor assembly. The sensor assembly is configured to detect a temperature within the air fluidizable section. The sensor assembly includes a housing with an interior, a processor within the interior of the housing, a thermal conductor, and a thermal insulator.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: November 27, 2018
    Assignee: Hill-Rom Services, Inc.
    Inventors: Brandon P Fisk, Nicole Johannigman, Brian J Hoffman, Frank E Sauser, Jason B Grace, David L Bedel, Brian A Kirkish, Jason M Gilreath
  • Patent number: 10101863
    Abstract: A processing system includes sensor circuitry and processing circuitry. The sensor circuitry is configured to be coupled to force sensor electrodes, and is configured to drive the force sensor electrodes to obtain capacitive measurements. The processing circuitry is operatively connected to the sensor circuitry and configured to aggregate the capacitive measurements into an aggregated measurement, and apply, to the aggregated measurement, a capacitive measurement to temperature mapping to obtain a current temperature of the force sensor electrodes.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: October 16, 2018
    Assignee: Synaptics Incorporated
    Inventors: Tom R. Vandermeijden, Divya Laguduvan, Umha Mahesh Srinivasan
  • Patent number: 10023152
    Abstract: A method of preventing a windshield wiper from freezing to a windshield of a vehicle is provided. The method broadly includes the steps of: (a) receiving information relating to an ambient condition of the vehicle; (b) switching power to a motor for driving the windshield wiper in a first direction if the received information indicates an adverse ambient condition of the vehicle; (c) sensing current drawn by the motor; (d) comparing an initial sensed current drawn by the motor when power is initially switched to the motor to a subsequent sensed current drawn by the motor a period after power is initially switched to the motor; and (e) periodically reversing the motor for driving the windshield wiper in a second direction or the first direction until the subsequent sensed current is less than the initial sensed current.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: July 17, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Aed M. Dudar, Mahmoud Yousef Ghannam
  • Patent number: 10018518
    Abstract: The overheat detection device for an electric motor of the present invention includes: PTC thermistors each attached to the coil of a different phase of a three-phase AC electric motor and connected in series; an overheat determination unit for determining overheat of coils based on the output voltage from the serially connected circuit of the PTC thermistors; and, an output voltage control unit that controls the output voltage from the PTC thermistors in accordance with the electric angle or magnetic phase of the three-phase AC electric motor.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: July 10, 2018
    Assignee: FANUC CORPORATION
    Inventor: Suguru Takamizawa
  • Patent number: 10005084
    Abstract: An article destruction device includes an electric motor driving at least one moving component. An indication panel includes at least three visual indicators situated in sequence. Each visual indicator is associated with a stage of an approaching overload (motor cool down) condition. A first visual indicator lights when the motor or corresponding sensor temperature is below a first threshold, i.e., when the device is first powered on. A second indicator lights when the temperature exceeds the first threshold and is below at least a second threshold, i.e., the temperature is approaching a fault condition. A last visual indicator lights when the temperature exceeds the first and the at least second thresholds, i.e., the fault condition is met. A thermistor on the motor energizes (self-heats) with the motor. A thermostatic switch controls current flow through windings of the motor depending on measured temperatures meeting operating and equilibrium temperature thresholds.
    Type: Grant
    Filed: July 14, 2014
    Date of Patent: June 26, 2018
    Assignee: STAPLES BRANDS INC.
    Inventors: Josh Davis, Jeffrey Jensen, Li (Henry) ZhiGuo, Hua (Kevin) Ren
  • Patent number: 9982920
    Abstract: A method of operating a heat transfer system includes starting operation of a first heat transfer fluid vapor/compression circulation loop including a fluid pumping mechanism, a heat exchanger for rejecting thermal energy from a first heat transfer fluid, and a heat absorption side of an internal heat exchanger. A first conduit in a closed fluid circulation loop circulates the first heat transfer fluid therethrough. Operation of a second two-phase heat transfer fluid circulation loop is started after starting operation of the first heat transfer fluid circulation loop. The second heat transfer fluid circulation loop transfers heat to the first heat transfer fluid circulation loop through the internal heat exchanger and includes a heat rejection side of the internal heat exchanger, a liquid pump, and a heat exchanger evaporator. A second conduit in a closed fluid circulation loop circulates a second heat transfer fluid therethrough.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: May 29, 2018
    Assignee: CARRIER CORPORATION
    Inventors: Yinshan Feng, Jinliang Wang, Futao Zhao, Parmesh Verma, Thomas D. Radcliff
  • Patent number: 9966870
    Abstract: To reduce the number of mounted components in the power conversion device and drive device. Each high-side transistor and low-side transistor has an EGE-type structure of (emitter-gate-emitter type). A high-side driver includes a first pull-up transistor configured to apply a first positive voltage to a gate based on an emitter of the high-side transistor, and a first pull-down transistor configured to couple the gate to the emitter. A low-side driver includes a second pull-up transistor configured to apply a second positive voltage to the gate based on an emitter of the low-side transistor, and a second pull-down transistor configured to couple the gate to the emitter.
    Type: Grant
    Filed: May 28, 2016
    Date of Patent: May 8, 2018
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Daisuke Kondo, Koji Tateno, Chang Liu, Nao Nagata
  • Patent number: 9918410
    Abstract: One embodiment provides a system for controlling one or more pulse width modulated (PWM) fans. The system can include a control system configured to provide a voltage control signal corresponding to a DC output voltage for the one or more PWM fans. A variable DC voltage source is configured to supply the DC output voltage to the plurality of fans at one of at least two different DC voltages based on the voltage control signal. The DC output voltage from the variable DC voltage source is separate from a PWM control signal that is also supplied to the PWM fans.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: March 13, 2018
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Daniel Humphrey, Mohamed Amin Bemat, Reynaldo P. Domingo, Reginald A. Whyte, Jr.
  • Patent number: 9846541
    Abstract: A memory system according to an embodiment includes a non-volatile memory and a controller configured to control the non-volatile memory. The controller includes an interface and a control unit. The interface receives, from a host, a first instruction to change a performance of the memory system as a performance control instruction. The control unit controls the memory system on the basis of the performance control instruction such that the number of parallel operations of parallel operating units which are operated in parallel in the memory system is changed.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: December 19, 2017
    Assignee: Toshiba Memory Corporation
    Inventors: Hironobu Miyamoto, Maoko Oyamada, Kenichiro Suzuki, Yoshihisa Kojima
  • Patent number: 9831656
    Abstract: A circuit interruption device (e.g., a molded case circuit breaker) includes at least one set of contacts, a contact actuator mechanism configured to open the at least one set of contacts and a trip control circuit configured to cause the contact actuator mechanism to open the at least one set of contacts responsive to a condition satisfying a first trip criterion and to apply a second trip criterion (e.g., a lower current level trip threshold) responsive to the opening of the at least one set of contacts. The trip control circuit may be configured to apply the second trip criterion after a succeeding closure of the at least one set of contacts. The trip control circuit may be further configured to return to application of the first trip criterion after lapse of a predetermined interval following the succeeding closure of the at least one set of contacts.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: November 28, 2017
    Assignee: Eaton Corporation
    Inventors: Harry James Carlino, David Richard Olenak
  • Patent number: 9781864
    Abstract: A cooling apparatus that cools an electronic apparatus accommodated in a cabinet, the cooling apparatus includes: a plurality of cooling fans attached to the cabinet; and a control unit that controls a rotation speed of the cooling fans that have been grouped into a plurality of groups, for each of the groups, depending on a group temperature that typifies each of the groups to which the cooling fans belong.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: October 3, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Yoshitaka Yamaguchi, Hideaki Maeda
  • Patent number: 9772364
    Abstract: A system includes a monitoring and/or protection system that includes an insulation derivation circuit. The insulation derivation circuit is configured to derive a first temperature compensation curve based on a first temperature and a first current, and the monitoring and/or protection system is configured to communicatively couple to a first current sensor configured to sense the first current traversing a first phase of a stator winding of a motor, a generator, or a combination thereof. The insulation derivation circuit is also configured to communicatively couple to a first temperature sensor configured to sense the first temperature of the stator when the stator is energized, and the temperature compensation curve is configured to map a temperature to a leakage dissipation factor.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: September 26, 2017
    Assignee: General Electric Company
    Inventors: Dan Tho Lu, Ronald W. Wilson
  • Patent number: 9715818
    Abstract: Methods, systems, computer-readable media, and apparatuses for processing sensor data are presented. In some embodiments, a security server may receive sensor data from one or more sensors that are located at a premises. Subsequently, the security server may classify a first portion of the received sensor data as critical sensor data, (e.g., based on the first portion of the received sensor data being associated with a critical function). In addition, the security server may classify a second portion of the received sensor data as non-critical sensor data (e.g., based on the second portion of the received sensor data being associated with a non-critical function). Thereafter, the security server may process the critical sensor data, and further may provide the non-critical sensor data to a network server for processing.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: July 25, 2017
    Assignee: Comcast Cable Communications, LLC
    Inventors: James Poder, Galen Trevor Gattis, Chris Kennedy, Karen Serviss
  • Patent number: 9712038
    Abstract: An insulated power supply apparatus includes an upper arm transformer which has a primary side coil and a secondary side coil, a lower arm transformer which has a primary side coil and a secondary side coil, and a power supply control section which has a voltage control switching element and an integrated circuit which turns on or off the voltage control switching element. At least one of the upper arm transformer and the lower arm transformer is adjacent to the power supply control section when viewing a surface of the substrate from a front thereof. An electric path transfers output voltage of the secondary side coil of the transformer adjacent to the power supply control section, to the integrated circuit. The integrated circuit turns on or off the voltage control switching element to perform feedback control so that the output voltage detected via the electric path reaches a target voltage.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: July 18, 2017
    Assignee: DENSO CORPORATION
    Inventors: Syun Miyauchi, Tsuneo Maebara, Yusuke Shindo, Junichi Fukuta
  • Patent number: 9658661
    Abstract: Climate regulation within an enclosure (e.g., a case of a workstation or a rack or cabinet of servers) may be achieved through a climate regulator featuring several selectable climate regulator settings (e.g., a variable-speed fan array). Controllers of such climate regulators often select climate regulator settings based on current conditions inside the enclosure, such as the temperature of one or more processors operating within the enclosure. However, such control fails to account for the climate of air outside the enclosure that is drawn in to provide climate regulation, even though the climate properties of inlet air may significantly affect the effectiveness of climate regulation. Accordingly, a controller of a climate regulator may be configured to detect inlet climate properties of air directed into the enclosure, and to map the inlet climate properties (alone or in combination with other factors) to a selected climate regulator setting for the climate regulator.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: May 23, 2017
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Mark Shaw, Matthew Allen Faist, Eric C. Peterson, Harry Raymond Rogers
  • Patent number: 9621054
    Abstract: A power supply circuit includes: an environment detecting circuit which detects an installation environment; and a voltage control circuit which makes a report of a power supply capability by performing fluctuation control of an output voltage in response to detection information of the environment detecting circuit.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: April 11, 2017
    Assignee: FUJITSU LIMITED
    Inventor: Toshihiro Miyamoto
  • Patent number: 9568704
    Abstract: In some embodiments, the method includes measuring a first responsive voltage value for a first voltage drop between a first terminal attached to a first suspension spring of an actuator housing a voice coil motor for moving a lens assembly and a second terminal of the magnetic coil of the voice coil motor. In some embodiments, the method includes calculating a first resistance of the magnetic coil based at least in part upon the first voltage value and measuring a second responsive voltage value for a second voltage drop between the first terminal attached and the second terminal. In some embodiments, the method includes calculating a second resistance of the magnetic coil based at least in part upon the second responsive voltage value and calculating a relative temperature for the magnetic coil based at least in part upon the first resistance and the second resistance.
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: February 14, 2017
    Assignee: Apple Inc.
    Inventors: Calvin K. Wong, Shashikant G. Hegde, Richard L. Baer
  • Patent number: 9520707
    Abstract: A device for protecting a user includes a first current path including a first and second conduit, and a monitoring device for detecting an imminent overload of the electric user. In an embodiment, the monitoring device includes a first temperature measurement unit, a support, an evaluation unit and a first transducer to produce an electrically conductive connection between the first and second conduits of the first current path. The first temperature measurement unit is, electrically insulated from the first transducer and includes a first temperature sensor. An additional electrically insulating material; is arranged on a first lateral surface of the support between the first transducer and the support and the first temperature sensor is arranged on the support to detect a temperature of the first transducer. The evaluating unit is configured to detect an imminent overload at the user on the basis of temperatures detected by the first temperature sensor.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: December 13, 2016
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Wolfgang Feil, Martin Maier, Klaus Pfitzner, Bernhard Rösch
  • Patent number: 9494954
    Abstract: Systems and methods are provided for information handling system thermal control that employ configuration-based temperature feedback, e.g., by using configuration-based fan speed control based on real time individual measured component temperatures. In one example, the disclosed systems and methods may be implemented to allow inputs from one or more hardware temperature sensors to set cooling fan speeds and/or power capping levels in a closed loop fashion, rather than relying solely (or at all) on system inlet ambient temperature.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: November 15, 2016
    Assignee: Dell Products LP
    Inventors: Paul Artman, Hasnain Shabbir
  • Patent number: 9360904
    Abstract: A cooling system includes a chassis. A thermal sensor is located in the chassis. A plurality of fan zones are located in the chassis. Each of the plurality of fan zones includes at least one fan. A first mapping is provided between the thermal sensor and a first fan zone of the plurality of fans zone, and a second mapping is provided between the first fan zone and a second fan zone in the plurality of fan zones. A controller is coupled to the thermal sensor and the at least one fan in each of the plurality of fan zones. In response to receiving a signal from the thermal sensor, the controller is operable to activate the at least one fan in the first fan zone according to the first mapping and activate the at least one fan in the second fan zone according to the second mapping.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: June 7, 2016
    Assignee: Dell Products L.P.
    Inventors: Dominick Adam Lovicott, Paul T. Artman
  • Patent number: 9337768
    Abstract: A motor control device includes: a coil temperature detection unit which detects a coil temperature of a motor; an upper limit current determination unit which determines an upper limit value of a coil current in which a coil temperature after a lapse of a first predetermined time from the present is maintained at an upper limit temperature or lower, every time a second predetermined time shorter than the first predetermined time elapses, by using a coil temperature detected by the coil temperature detection unit; and a coil current control unit which controls the coil current so as to be equal to or lower than the upper limit value.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: May 10, 2016
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Yasushi Ikeuchi
  • Patent number: 9293910
    Abstract: A power battery assembly may include a battery circuit and a circuit protecting unit. The circuit protecting unit may be connected in series with the battery circuit. The circuit protecting unit may include a relay and a current sensing unit connected in series with the battery circuit. A switching unit is connected with the relay for controlling the switching of the relay, and a controller is connected with the switching unit and to the current sensing unit to control switching on or switching off the switching unit based on comparison of the current value detected by the current sensing unit, and sent to the controller with a first predetermined current value.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: March 22, 2016
    Assignee: SHENZHEN BYD AUTO R&D COMPANY LIMITED
    Inventors: Long He, Jianhua Zhu, Qing Lai, Zhiwei Tong, Zhipei Lu
  • Patent number: 9262906
    Abstract: Methods, systems, computer-readable media, and apparatuses for processing sensor data are presented. In some embodiments, a security server may receive sensor data from one or more sensors that are located at a premises. Subsequently, the security server may classify a first portion of the received sensor data as critical sensor data, (e.g., based on the first portion of the received sensor data being associated with a critical function). In addition, the security server may classify a second portion of the received sensor data as non-critical sensor data (e.g., based on the second portion of the received sensor data being associated with a non-critical function). Thereafter, the security server may process the critical sensor data, and further may provide the non-critical sensor data to a network server for processing.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: February 16, 2016
    Assignee: COMCAST CABLE COMMUNICATIONS, LLC
    Inventors: James Poder, Galen Trevor Gattis, Chris Kennedy, Karen Serviss
  • Patent number: 9260007
    Abstract: A cooling system to be mounted in a hybrid vehicle including a motor driven and a generator includes a cooling path and a pressurizing unit. In the cooling path, coolant for cooling the motor and the generator is recirculated. The pressurizing unit pumps the coolant. The motor is disposed downstream of the pressurizing unit in a recirculating direction of the coolant. The generator is disposed downstream of the motor and upstream of the pressurizing unit in the recirculating direction.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: February 16, 2016
    Assignee: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
    Inventor: Yoshihiro Sakaguchi
  • Patent number: 9263928
    Abstract: A system to monitor the temperature of power electronic devices in a motor drive includes a base plate defining a planar surface on which the electronic devices and/or circuit boards within the motor drive may be mounted. The power electronic devices are mounted to the base plate through the direct bond copper (DBC). A circuit board is mounted to the base plate which includes a temperature sensor mounted on the circuit board proximate to the power electronic devices. The temperature sensor generates a digital signal corresponding to the temperature measured by the sensor. A copper pad is included between each layer of the circuit board and between the first layer of the circuit board and the sensor. The circuit board also includes vias extending through each layer of the board. The copper pads and vias establish a thermally conductive path between the temperature sensor and the base plate.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: February 16, 2016
    Assignee: Rockwell Automation Technologies, Inc.
    Inventors: Zoran Vrankovic, Rongjun Huang, Mark Cooper, David M Brod
  • Patent number: 9235199
    Abstract: Prior to machining a workpiece, a warm-up control device for a machine tool is activated to perform a warm-up in which a main shaft rotary drive part and axes drive parts are driven. The amount of displacement of heat that is generated upon starting of the warm-up and changes with time is calculated every predetermined time period. Whether to end the warm-up is determined based on the thermal displacement amount. Whether to restart the warm-up after the end of the warm-up is determined based on the thermal displacement amount. When it is determined to restart the warm-up, the warm-up is restarted.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: January 12, 2016
    Assignee: FANUC CORPORATION
    Inventor: Takaaki Fujii
  • Patent number: 9106171
    Abstract: A mechanism for compensating power to a motor or actuator. Compensation may counter the effects of changing voltage levels of power to the motor and varying temperatures at the motor. An output of a wave generator may be input to a comparator along with a level of voltage representing the temperatures and voltage levels. An output may be a power signal for driving the motor at a constant speed and/or torque which can increase a maintenance-free lifetime of the motor and actuator.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: August 11, 2015
    Assignee: Honeywell International Inc.
    Inventors: John C. Bartholomew, Mark D. Bokusky, Steffen J. Moeller
  • Patent number: 9046276
    Abstract: A heating, ventilation, and/or air conditioning (HVAC) system has a motor configured to selectively provide an airflow, an airflow control algorithm configured receive an input and to provide a desired control value associated with a desired actual operation value of the motor, wherein the desired actual operation value is provided as a function of the input, and a control translator configured to receive the desired control value and to provide a correlated control value to the motor, wherein the correlated control value is associated with causing the motor to operate at the desired control value.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: June 2, 2015
    Assignee: Trane International Inc.
    Inventor: Wayne N. Kraft
  • Patent number: 9035583
    Abstract: The system has a driving circuit for the motor of the electric fan, coupled to the electrical system of a motor vehicle and having a plurality of controlled electronic switches, and an electronic control unit arranged to control the driving circuit in such a way as to cause the flow in the motor of a variable average current capable of producing a required speed of rotation, in accordance with a predetermined relationship or function. The control unit is designed to store a predetermined threshold of rotation speed, and to control the motor through the associated driving circuit in such a way that when the rotational speed of the motor exceeds the threshold the driving circuit causes electrical braking of the motor.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: May 19, 2015
    Assignee: GATE S.R.L.
    Inventors: Davide Cerrato, Pierfranco Pangella
  • Patent number: 9035588
    Abstract: A brushless motor driving apparatus that rotates and drives a brushless motor, which has a plurality of coils, by switching energization modes corresponding to phases of the brushless motor, sequentially switches the energization modes based on a non-energized phase voltage and a voltage threshold. Also, the brushless motor driving apparatus regulates an upper threshold for energization amount based on the voltage threshold and a change in the non-energized phase voltage at timing of switching the energization mode.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: May 19, 2015
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Masaki Hano, Naoki Okamoto
  • Patent number: 9030143
    Abstract: A method of limiting current to a motor. The method comprising monitoring a speed of a motor, an input voltage of a controller, and a temperature of the controller. Determining a maximum current limit for the motor based on the monitored speed when the motor speed is below a speed threshold. Determining a maximum current limit for the motor based on the input voltage and the temperature when the motor speed is above the speed threshold and the input voltage is below an input voltage threshold. Determining a maximum current limit for the motor based on the temperature when the motor speed is above the speed threshold and the input voltage is above the input voltage threshold. Or determining a maximum current limit for the motor based on the monitored speed when the motor speed is above the speed threshold and the temperature is below a temperature threshold.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: May 12, 2015
    Assignee: Regal Beloit America, Inc.
    Inventor: Yilcan Guzelgunler
  • Patent number: 9024547
    Abstract: Apparatus and methods for reducing unwanted conducted noise generated by a DC load 17. Load 17 is powered by a voltage source 11. A current sense 13 senses pulse current Ifan flowing through the load 17. First converting means 14, 15, 16 converts the sensed pulse current Ifan to a correction voltage Vp. The correction voltage Vp is then converted to a correction current Ip, which offsets the deleterious effects of Ifan. The current Is flowing through the voltage source 11 equals Ifan plus the correction current Ip.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: May 5, 2015
    Assignee: Allied Telesis, Inc.
    Inventor: Randall Vogt
  • Patent number: 9018878
    Abstract: A machine propelled by an electric motor and subject to a deration scheme is described wherein deration is specified by a combination of a temperature signal indicating a degree to which a machine component is overheating. The machine includes an electronic controller that receives a temperature signal indicative of a current temperature status of the electric motor. The electronic controller receives a motor speed signal indicative of a current speed status of the electric motor. The electronic controller calculates, in accordance with a derating scheme, a deration value for the electric motor, the deration value being determined by applying a set of current operating state parameter values to the derating scheme. The set of current operating state parameters include: a motor speed parameter value; and a temperature parameter value.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: April 28, 2015
    Assignee: Caterpillar Inc.
    Inventors: Matthew Hendrickson, Bo Xie
  • Publication number: 20150108933
    Abstract: A method for operating a direct current (DC) motor is shown and described. The method includes generating a first pulse width modulated (PWM) signal having a first duty cycle, providing the first PWM signal as a PWM DC output for the DC motor, and adjusting the first duty cycle to control a speed of the DC motor. The method further includes sensing an electric current output to the motor using a current sensor and, when the sensed current exceeds a threshold, holding the PWM DC output off.
    Type: Application
    Filed: December 23, 2014
    Publication date: April 23, 2015
    Applicant: JOHNSON CONTROLS TECHNOLOGY COMPANY
    Inventors: Russell W. Diamond, Gary A. Romanowich, David R. Fuhr
  • Patent number: 8994309
    Abstract: There are provided a pulse width modulation (PWM) signal generating circuit and a motor driving circuit. The PWM signal generating circuit includes: a proportional-to-absolute temperature (PTAT) voltage generating unit generating a PTAT voltage in proportion to an absolute temperature; a reference wave signal generating unit generating a preset reference wave signal; and a PWM signal generating unit comparing the PTAT voltage and the reference wave signal with each other to generate a PWM signal, wherein the PTAT voltage generating unit adjusts the PTAT voltage according to a control signal.
    Type: Grant
    Filed: January 22, 2013
    Date of Patent: March 31, 2015
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventor: Soo Woong Lee
  • Patent number: 8975843
    Abstract: A motor control device includes a control condition storage unit storing at least one of a control condition defined by an equivalent voltage supplied to a three-phase motor and a control condition defined by relationship between the equivalent voltage supplied to the three-phase motor and a frequency of PWM signal, a control condition extracting unit extracting the control condition from the control condition storage unit in response to a temperature of a viscous fluid supplied by a pump having the three-phase motor as a power source, and a PWM controlling unit controlling a switching element included in an inverter circuit based on a PWM signal related to the extracted control condition when the three-phase motor is started.
    Type: Grant
    Filed: June 6, 2012
    Date of Patent: March 10, 2015
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventor: Yoshihiko Minato
  • Patent number: 8975851
    Abstract: A temperature estimating unit includes an energy calculating unit that calculates a heat generation energy rate of a motor on the basis of a difference between power input to the motor and power output from the motor, a heat radiation energy calculating unit that calculates a heat radiation energy rate from a target member on the basis of a difference between a previous temperature estimation value Tm of the target member and an ambient temperature, and a thermal coefficient of the target member, and an amount calculating unit that calculates a temperature increase rate of the target member on the basis of a difference between the heat generation energy rate and the heat radiation energy rate, and an estimation value calculating unit that calculates a current temperature estimation value of the target member on the basis of the temperature increase rate and the previous temperature estimation value.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: March 10, 2015
    Assignees: Advics Co., Ltd., Denso Corporation
    Inventors: Tadayoshi Usami, Nobuhiko Yoshioka