Patents Assigned to UD Trucks Corporation
  • Patent number: 9732650
    Abstract: An exhaust gas purification apparatus includes: a reduction catalyst converter that reduces and purifies nitrogen oxides in exhaust gas; a tank that stores a liquid reducing agent or precursor thereof; and an injection nozzle that injects the liquid reducing agent or precursor thereof stored in the tank on an exhaust gas upstream side of the reduction catalyst converter. Some of the exhaust gas flowing through an exhaust pipe is diverted to the tank by a bypass pipe, to cause an exchange of heat between the diverted exhaust gas and the liquid reducing agent or precursor thereof stored in the tank, thereby thawing the liquid reducing agent or precursor thereof frozen in the tank.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: August 15, 2017
    Assignee: UD Trucks Corporation
    Inventor: Yasuyoshi Tomita
  • Patent number: 9663093
    Abstract: The objective of the present invention is to provide a clutch disengagement control mechanism that is for a mechanical automatic transmission and that can perform clutch disengagement control at an optimal timing during both ordinary driving and low-speed driving at the verge of stopping. To this end, the present invention is provided with a vehicle speed measurement device (3 and 6, or 4), a brake-operation-speed measurement device (8), a clutch operation device (9), and a control device (10).
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: May 30, 2017
    Assignee: UD TRUCKS CORPORATION
    Inventor: Kunihiro Kaneko
  • Patent number: 9657362
    Abstract: In an exhaust gas purification apparatus or other apparatuses that are supplied with ammonia generated from a urea aqueous solution and causes selective reduction and purification of nitride oxides, a shot peening treatment is applied to a welded portion of its exhaust pipe which is made of a ferritic stainless steel plate and through which exhaust gas containing ammonia and hydrogen passes. By shot peening the welded portion of the exhaust pipe, a tensile residual stress in the welded portion of the exhaust pipe can be replaced with a compressive residual stress, and further the diameter of metal crystal grains in the welded portion can be reduced. In this way, the durability of the exhaust pipe can be improved.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: May 23, 2017
    Assignee: UD TRUCKS CORPORATION
    Inventors: Yoshihiko Nozaki, Jouji Hagiwara, Kazuhiro Hirakawa, Norihiro Fujisawa
  • Patent number: 9638184
    Abstract: An air compression apparatus includes an air tank, an air compressor, and a governor. The air compressor delivers compressed air to the air tank by using power of an engine at the time of load running and stops the delivery of the compressed air to the air tank at the time of no-load running. The governor switches between the load running and the no-load running of the air compressor. Furthermore, the governor changes, when an engine speed is equal to or more than a threshold value, switchover timing for switching the air compressor from the no-load running to the load running in comparison with a time when the engine speed is less than the threshold value.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: May 2, 2017
    Assignee: UD TRUCKS CORPORATION
    Inventor: Atsushi Ichihara
  • Patent number: 9573502
    Abstract: A seat cushion device capable of adjusting hardness of a seat cushion including a seating surface, on which a user is seated, includes a recessed part that is formed in a back surface of the seating surface in the seat cushion, a left plate that faces a back surface of a left thigh holding part of the seating surface, on which a left leg thigh of the user is located, and that is movable inside the recessed part vertically, a right plate that faces a back surface of a right thigh holding part of the seating surface, on which a right leg thigh of the user is located, and that is movable inside the recessed part vertically, and a gap adjustment mechanism that moves the left plate and the right plate vertically in an independent manner, and that can adjust a clearance from the back surface of the seating surface.
    Type: Grant
    Filed: October 10, 2012
    Date of Patent: February 21, 2017
    Assignee: UD TRUCKS CORPORATION
    Inventors: Kunio Seki, Tsubasa Yahagi
  • Patent number: 9536672
    Abstract: This invention provides a storage module formed using a plurality of storage cells. The each storage cell includes a storage unit that stores a charge, a polyhedral container that houses the storage unit and has two opposing surfaces, and a pair of electrode terminals that output and input the charge of the storage unit. The electrode terminals include a positive electrode terminal that projects externally from an end portion of the container and has a joint surface that is formed to be substantially coplanar with one of the two opposing surfaces of the container and joined to an electrode terminal of an adjacent storage cell, and a negative electrode terminal that projects externally from the end portion of the container and has a joint surface that is formed to be substantially coplanar with another of the two surfaces and joined to an electrode terminal of an adjacent storage cell.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: January 3, 2017
    Assignee: UD TRUCKS CORPORATION
    Inventors: Shigemi Kobayashi, Shuuichi Araki, Kazumasa Honda, Masami Takeda
  • Patent number: 9496721
    Abstract: A storage apparatus comprises a plurality of storage cells connected in series. Each storage cell comprises a storage element that stores a charge, a container that houses the storage element, a reception antenna capable of receiving power transmitted from a transmission antenna of a feeding facility provided in a wireless power transfer system, and a charging control circuit that charges the storage element using the power received by the reception antenna. The plurality of storage cells are charged concurrently and wirelessly, and therefore charging can be performed on all of the storage cells without overcharging or undercharging.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: November 15, 2016
    Assignee: UD TRUCKS CORPORATION
    Inventors: Shigemi Kobayashi, Masayuki Nakane, Takayuki Tsuchiya
  • Patent number: 9464335
    Abstract: The purpose of the present invention is to provide a method for improving fatigue strength that is capable of improving the fatigue strength of cast iron, specifically spherical graphite cast iron, to the same level as that of carbon steel subjected 10 carburizing and quenching. To this end, this method contains a step for performing first, second and third shot peenings using shot of a prescribed diameter for each on spherical graphite cast iron on which a quenching and tempering heat treatment or austempering heat treatment has been performed and tensile strength made to be 1200 MPa or more, the spherical graphite cast iron containing the following elements in the following mass percentages: C=2.0-4.0%, Si=1.5-4.5%, Mn=2.0% or less, P=O.08% or less, 8=0.03% or less, Mg=0.02-0.1%, and Cu=1.8-4.0%.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: October 11, 2016
    Assignee: UD TRUCKS CORPORATION
    Inventors: Yoshihiko Nozaki, Makoto Taguchi, Kazuhiro Hirakawa
  • Patent number: 9460862
    Abstract: An electric storage cell includes a hard casing configured to house an electric storage element and electrolyte, and an electrode terminal connected to a charge collector of the electric storage element and exposed to an outside of the hard casing, the electric storage cell being chargeable/dischargeable using the electrode terminal, wherein the electrode terminal has a charge collector connecting portion connected to the charge collector through an opening formed in the hard casing, and a main body bonded to an outer circumferential surface of the hard casing to make a surface contact.
    Type: Grant
    Filed: November 7, 2011
    Date of Patent: October 4, 2016
    Assignee: UD TRUCKS CORPORATION
    Inventors: Shigemi Kobayashi, Naomichi Koike
  • Patent number: 9393948
    Abstract: An object is to provide a vehicle start-up control, mechanism capable of preventing the occurrence of clutch judder with no need of paying excessive attention thereto for a driver. For this purpose, the present invention is provided with a clutch judder detection device (1) for detecting the occurrence of clutch judder, a clutch state detection, device (3) for detecting a partially engaged clutch state, and a control unit, (10), wherein the control unit (10) has a function, for storing an accelerator opening (position) in the partially engaged clutch state in a case where the clutch judder has occurred during start-up and a function, for comparing an accelerator opening during next start-up with an accelerator opening in case where the clutch judder has occurred during previous start-up.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: July 19, 2016
    Assignee: UD TRUCKS CORPORATION
    Inventor: Kunihiro Kaneko
  • Patent number: 9347483
    Abstract: A fall-off preventing structure of a propeller shaft does not allow a companion flange to be completely pulled off and dropped from a spline shaft when a nut loosens and comes off. In the propeller shaft, a round shaft part is provided on a front end of the spline shaft, a length of a threaded part of the spline shaft front end side on which the nut is screwed and the round shaft part is set longer than a length from a front end portion of the companion flange to a seat surface of the nut, and a total length of the length of the threaded part and the round shaft part and a length from the front end portion of the companion flange to the seat surface of the nut is set longer than the tolerable slide amount.
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: May 24, 2016
    Assignee: UD TRUCKS CORPORATION
    Inventor: Yohei Ono
  • Patent number: 9340846
    Abstract: The purpose of the present invention is to provide a method for improving fatigue strength that is capable of improving the fatigue strength of cast iron, specifically spherical graphite cast iron, to the same level as that of carbon steel subjected 10 carburizing and quenching. To this end, this method contains a step for performing first, second and third shot peenings using shot of a prescribed diameter for each on spherical graphite cast iron on which a normalizing heat treatment has been performed at 800-950° C. and tensile strength made to be 850 MPa or more, the spherical graphite cast iron containing the following elements in the following mass percentages: C=2.0-4.0%, Si=1.5-4.5%, Mn=2.0% or less, P=0.08% or less, 8=0.03% or less, Mg=0.02-0.1%, and Cu=1.8-4.0%.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: May 17, 2016
    Assignee: UD TRUCKS CORPORATION
    Inventors: Yoshihiko Nozaki, Makoto Taguchi, Kazuhiro Hirakawa
  • Patent number: 9341311
    Abstract: A compressed air supply apparatus includes an air compressor for compressing air to at least atmospheric pressure, a tank for storing the compressed air and supplying the compressed air, via a supply port, to various devices that use the compressed air as a working fluid, a first pipe that connects the air compressor to the tank, a heat pump including an evaporator for cooling at least a part of the first pipe, a selection device for selecting whether a cool air cooled by the evaporator, which is fluidly distinct from the compressed air, is introduced into a vehicle interior or discharged outside of the vehicle interior, and a control device configured to control the selection device so that the cool air is introduced into the vehicle interior when an air conditioner switch is turned ON and discharged outside of the vehicle interior when the air conditioner switch is turned OFF.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: May 17, 2016
    Assignee: UD TRUCKS CORPORATION
    Inventor: Shohji Itadani
  • Patent number: 9208957
    Abstract: An electric storage cell includes a casing configured to house an electric storage element and electrolyte, a charging reception antenna connected to the electric storage element and configured to receive electric power transmitted from a power feeding unit in a contactless manner, and a discharging transmission antenna connected to the electric storage element and configured to transmit electric power stored in the electric storage element in a contactless manner. The charging reception antenna and the discharging transmission antenna are arranged in the casing.
    Type: Grant
    Filed: November 28, 2011
    Date of Patent: December 8, 2015
    Assignee: UD TRUCKS CORPORATION
    Inventors: Shigemi Kobayashi, Kunihiko Hikiri, Masayuki Nakane
  • Patent number: 9188038
    Abstract: A pumping device having an identifying function is provided to allow cost reduction. A return channel and a delivery channel of a pump are connected to a suction tube equipped with a flowmeter, a return tube is connected to the return channel, a solenoid valve is disposed between the suction tube and the delivery channel, and a control unit identifying a fluid by a flow velocity difference of the flowmeter is disposed. The solenoid valve closes the delivery channel when a fluid flows in, the flowmeter measures a flow rate of a fluid sucked through the suction tube, and the fluid is returned to the return tube via the return channel. The control unit opens the solenoid valve to supply the fluid also to the delivery channel when it is identified that a fluid is an intended fluid.
    Type: Grant
    Filed: October 11, 2011
    Date of Patent: November 17, 2015
    Assignee: UD TRUCKS CORPORATION
    Inventors: Yasuyoshi Tomita, Kiyoshi Fukuda
  • Patent number: 9168909
    Abstract: The present invention has an object to provide a vehicle control device which does not require a complicated operation to start an engine even if an idle-stop function has been executed. Thus, the present invention includes a mechanical automatic transmission, an idle-stop device (1) for stopping the engine when the vehicle is stopped, a slope detection device (2) for detecting a slope of a road, and a control unit (10), and is characterized in that the control unit (10) has a function for disengaging a clutch and selecting a gear appropriate for the detected slope, when the slope detected by the slope detection device (2) is at or above a threshold value and an operation of the idle-stop device (1) has been requested.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: October 27, 2015
    Assignee: UD TRUCKS CORPORATION
    Inventor: Kunihiro Kaneko
  • Patent number: 9142361
    Abstract: An electric storage cell includes a film-like casing configured to house a layered charge collector and electrolyte, and an electrode terminal connected to the charge collector and exposed to an outside of the film-like casing, the electric storage cell being chargeable/dischargeable using the electrode terminal, wherein bending portions of the film-like casing are formed in parallel.
    Type: Grant
    Filed: November 28, 2011
    Date of Patent: September 22, 2015
    Assignee: UD TRUCKS CORPORATION
    Inventors: Takayuki Tsuchiya, Shigemi Kobayashi
  • Patent number: 9120468
    Abstract: The purpose of the present invention is to provide an auxiliary braking device of a vehicle which obtains braking force corresponding to the amount of pressing of an accelerator pedal even during an operation of the auxiliary braking device and prevents frequent repetition of the acceleration and deceleration, to attain a fuel saving operation. Therefore, in the present invention, a vehicle electronic control unit (10) and other electronic control units (20, 30) are provided, the vehicle electronic control unit (10) and the other electronic control units are connected with each other by an in-vehicle communication system (L123), and an auxiliary brake switch position detection device (5S) that detects a switch position of an auxiliary brake switch (5) and an accelerator pedal pressing amount measurement device (4S) that measures the amount of pressing of the accelerator pedal (4) are provided.
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: September 1, 2015
    Assignee: UD TRUCKS CORPORATION
    Inventor: Masafumi Shirai
  • Patent number: 9109484
    Abstract: The purpose of the present invention is to provide a DPF travel-time regeneration control system of stably raising the temperature even during travel and capable of decreasing the frequency of DPF regeneration when the vehicle is stopped. In this control system, if the DPF (5) needs to be regenerated, the vehicle is traveling on cruise control, and the exhaust temperature detected by an exhaust temperature sensor (11) is higher than a threshold value, then fuel is injected into the exhaust pipe by a fuel injection means (7), and if the exhaust temperature is lower than the threshold value, the exhaust temperature is raised by operating the exhaust brake without injecting fuel into the exhaust pipe.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: August 18, 2015
    Assignee: UD TRUCKS CORPORATION
    Inventor: Takafumi Amano
  • Patent number: 9102257
    Abstract: The purpose of the present invention is to provide a cushion structure for a vehicle seat, the cushion structure allowing the hardness of the cushion to be adjusted according to an occupant's preference by simple operation. The present cushion structure for a vehicle seat has: a band (41) consisting of a flexible material, the band (41) being provided below the lower surface (1b) of a cushion foam and extending in the longitudinal direction of the seat; and a tension adjusting mechanism (5) for adjusting the tension of the band (41) consisting of a flexible material. The tension adjusting mechanism (5) adjusts the hardness of the cushion foam (1) by adjusting the tension of the band (41) consisting of a flexible material.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: August 11, 2015
    Assignee: UD TRUCKS CORPORATION
    Inventor: Kunio Seki