Patents Assigned to Mitsubishi Fuso Truck and Bus Corporation
  • Publication number: 20090100825
    Abstract: An exhaust purification apparatus comprises an ammonia selective reduction-type NOx catalyst that selectively reduces NOx within exhaust gas by using ammonia as a reducing agent, a urea-water supply device that supplies urea-water into the exhaust gas existing upstream of the ammonia selective reduction-type NOx catalyst, and a control unit. The control unit controls the urea-water supply device so that the urea-water is intermittently supplied according to predetermined supply duration time and predetermined supply suspension time when the urea-water is supplied from the urea-water supply device for the purpose of providing ammonia to the ammonia selective reduction-type NOx catalyst.
    Type: Application
    Filed: October 14, 2008
    Publication date: April 23, 2009
    Applicant: MITSUBISHI FUSO TRUCK AND BUS CORPORATION
    Inventors: Satoshi HIRANUMA, Minehiro MURATA, Yoshinaka TAKEDA, Hiroaki FUJITA, Satoshi YAMAZAKI, Shinichi SAITO, Yasuko SUZUKI
  • Publication number: 20090100827
    Abstract: An exhaust gas purification apparatus includes a venturi constituting part of an exhaust pipe and formed by joining two axially divided parts together, and a reducing agent supply device for injecting an aqueous urea solution into the exhaust pipe. The venturi is positioned such that joints thereof are located to the right and left, respectively, of the center of a cross section perpendicular to the axis of the venturi.
    Type: Application
    Filed: October 7, 2008
    Publication date: April 23, 2009
    Applicant: MITSUBISHI FUSO TRUCK AND BUS CORPORATION
    Inventors: Yasuko SUZUKI, Hiroaki FUJITA, Satoshi HIRANUMA, Shinichi SAITO, Masayuki KATAFUCHI
  • Publication number: 20090094964
    Abstract: An exhaust purification apparatus for an engine comprises an upstream casing that has a cylindrical shape and accommodates a particulate filter; an exhaust gas outlet that is formed in a side wall of the upstream casing and discharges the exhaust gas that has passed through the particulate filter; a urea-water injector that is fixed to the upstream casing located in a position opposite to the exhaust gas outlet and injects urea-water toward the exhaust gas outlet; and a downstream casing that accommodates an ammonia selective reduction-type NOx catalyst into which the exhaust gas discharged from the exhaust gas outlet flows.
    Type: Application
    Filed: October 7, 2008
    Publication date: April 16, 2009
    Applicant: MITSUBISHI FUSO TRUCK AND BUS CORPORATION
    Inventors: Hiroaki Fujita, Satoshi Hiranuma, Minehiro Murata, Satoshi Yamazaki, Goro Iijima, Yoshinaka Takeda
  • Patent number: 7519517
    Abstract: In a blade shape creation program and method, a camber line defining equation for defining a camber line to be defined on a cross section of a blade shape is constructed by a cubic function as a first function defining a leading edge camber line on a leading edge side of a maximum camber point on the camber line, and a cubic function as a second function defining a trailing edge camber line on a trailing edge side of the maximum camber point on the camber line; is defined, with a chord length, a position of maximum camber, a maximum camber value, an inflow angle, and a discharge angle of the camber line being taken as design factors; and has the boundary condition that the first function and the second function have tangents continuous with each other at the maximum camber point.
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: April 14, 2009
    Assignee: Mitsubishi Fuso Truck and Bus Corporation
    Inventors: Naoya Kakishita, Itsuhei Kori
  • Patent number: 7497078
    Abstract: An exhaust gas purifying system reliably detects an amount of accumulated particulates, lengthens forced regeneration intervals, and improves fuel efficiency. The exhaust gas purifying system comprises: a particulate filter 22 disposed in an exhaust system of an internal combustion engine 2 and collecting particulates from exhaust gas, and an NO2 generating unit 21 upstream of or in the particulate filter 22; a discharged particulate amount calculating unit A1 calculates an amount Me of discharged particulates on the basis of an excess air ratio ?; a burnt particulate amount calculating unit A2 calculates an amount Mb of burnt particulates on the basis of the temperature of exhaust gas in front of the particulate filter or the temperature of the particulate filter; and a particulate accumulation amount calculating unit calculates an amount Ma of accumulated particulates on the basis of the amount Me of discharged particulates or the amount Mb of burnt particulates.
    Type: Grant
    Filed: October 16, 2003
    Date of Patent: March 3, 2009
    Assignee: Mitsubishi Fuso Truck and Bus Corporation
    Inventors: Satoshi Hiranuma, Ritsuko Shinozaki, Yoshinori Takahashi, Yoshinaka Takeda, Reiko Doumeki, Shinichi Saito, Toru Kawatani, Takeshi Hashizume, Kenji Kawai
  • Patent number: 7499569
    Abstract: A camera for taking an image of movement of a hand, and a hand pattern switching apparatus which operates an object equipment based on the result of the image taken by the camera, having a storage unit for saving the image taken in the state that a hand does not exist in the image pickup area of the camera, as an initial image data, a differentiation unit for obtaining a difference image data between an original image data that is the image taken in the state that a hand exists in the image pickup area of the camera, and the initial image data, a luminance detection unit for obtaining an average luminance in a place close to a hand based on the image data of a place close to a hand obtained by the differentiation unit, and a processing unit for performing binary processing of the original image data by a threshold value based on the average luminance calculated by the luminance detection unit.
    Type: Grant
    Filed: February 23, 2005
    Date of Patent: March 3, 2009
    Assignees: Mitsubishi Fuso Truck and Bus Corporation, Keio University
    Inventors: Hiromitsu Sato, Keiichi Yamamoto, Shinji Ozawa, Hideo Saito, Hiroya Igarashi
  • Patent number: 7498757
    Abstract: A hybrid electric vehicle is capable of transmitting driving forces of an engine and an electric motor to driving wheels through an automatic transmission and of releasing mechanical connection between the engine and the transmission by a clutch. A torque control unit switches between deceleration implemented only by the motor and deceleration by the engine and the motor by controlling the clutch based upon magnitude relation between a required deceleration torque and an upper limit deceleration torque generable by the motor. The required torque and the upper limit deceleration torques become equal to each other when the revolution speed of the motor is predetermined revolution speed. The predetermined revolution speed for the required deceleration torque corresponding to a forward gear related to downshift of the transmission differs from revolution speed that falls in the range of revolution speed fluctuation of the motor at the time of the downshift.
    Type: Grant
    Filed: March 6, 2007
    Date of Patent: March 3, 2009
    Assignee: Mitsubishi Fuso Truck and Bus Corporation
    Inventors: Tatsuo Kiuchi, Takashi Kobayashi
  • Publication number: 20090048770
    Abstract: Parameters which change depending on driving method of a vehicle driver are inputted to a fuel consumption estimation model. This fuel consumption estimation model estimates fuel consumption of a vehicle based on the parameter. The fuel consumption of a vehicle estimated by the fuel consumption estimation model is outputted to an output portion.
    Type: Application
    Filed: October 3, 2008
    Publication date: February 19, 2009
    Applicant: MITSUBISHI FUSO TRUCK AND BUS CORPORATION
    Inventors: Tasuku SATO, Masayuki KAYANO, Shogo MATSUURA
  • Publication number: 20090025370
    Abstract: An auxiliary agent supply means (32, 58) is provided to supply, upstream of an exhaust gas purification means (24, 56, 78), an auxiliary agent for maintaining the exhaust gas purifying function of the exhaust gas purification means (24, 56, 78). A control means (38) for controlling the auxiliary agent supply means (32, 58), thereby regulating the amount of the auxiliary agent supplied includes a standard supply quantity determination section (40, 50, 68, 86) for determining standard supply quantity of the auxiliary agent required to maintain the exhaust gas purifying function, a target supply quantity determination section (42, 52, 70, 88) for determining target supply quantity of the auxiliary agent, by correcting the standard supply quantity on the basis of exhaust pressure, and a supply control section (44, 54, 72, 90) for controlling the auxiliary agent supply means to supply the auxiliary agent in the target supply quantity.
    Type: Application
    Filed: February 24, 2006
    Publication date: January 29, 2009
    Applicant: MITSUBISHI FUSO TRUCK AND BUS CORPORATION
    Inventors: Nobuhiro Kondo, Toru Kawatani, Yoshinaka Takeda, Hitoshi Yokomura, Minehiro Murata
  • Publication number: 20090025994
    Abstract: A truck 1 includes a cab 3 in which a driver's seat is provided, a van 5 provided rearward of the cab and serving as a load container, wheels 7a, 7b, 7c, and 7d, etc. These components are attached to frame members 9a, 9b, 9c, 9d, 9e, 9f, etc. An engine 13 is provided between the frame members 9a and 9b. A drive-force transmission apparatus which includes a clutch 15, a transmission 17, etc. is provided rearward of the engine 13 so as to transmit drive force from the engine 13 to the wheels (driven wheels 7b and 7d). A radiator 19 is provided forward of the engine 13 so as to cool the engine 13. A windbreaking plate 25 is provided above a portion of the engine 13 exposed from a gap 30 between the cab 3 and the van 5 so as to prevent a downward air flow 26 from hitting the engine 13 to thereby hinder the flow of radiator intake air 32.
    Type: Application
    Filed: October 13, 2004
    Publication date: January 29, 2009
    Applicant: MITSUBISHI FUSO TRUCK AND BUS CORPORATION
    Inventors: Naoya Kakishita, Itsuhei Kori, Takafumi Hirase
  • Publication number: 20090019837
    Abstract: An exhaust purification device for an engine comprises a catalytic device for purifying exhaust by using an additive, a deflecting device for allowing the exhaust to flow through and causing the exhaust to be agitated, upstream of the catalytic device, an additive injection device for injecting an additive, downstream of the deflecting device, a temperature detection device for detecting exhaust temperature, downstream of the deflecting device, and a control unit for controlling the additive injection device on the basis of the exhaust temperature detected by the temperature detection device. The temperature detection device has a temperature detection part located within a region where the exhaust having passed through the deflecting device has increased velocity.
    Type: Application
    Filed: July 18, 2008
    Publication date: January 22, 2009
    Applicant: MITSUBISHI FUSO TRUCK AND BUS CORPORATION
    Inventors: Yasuko SUZUKI, Hiroaki FUJITA, Satoshi HIRANUMA, Shinichi SAITO, Yoshio NAKAYAMA
  • Publication number: 20090019842
    Abstract: An exhaust purification device for an engine comprises a catalyst device that purifies the exhaust gas of the engine by using an additive; a venturi-shaped mixing chamber that is disposed upstream from the catalyst device and extends from a taper portion with a diameter tapering downstream to continue to a constricted portion with a minimum diameter and then to a flared portion with a diameter that is increased in the downstream direction; a swirl-generating device that is disposed in vicinity of a most upstream section of the taper portion of the mixing chamber and generates a swirling flow in the exhaust gas; and an additive-injection device that is disposed upstream from the constricted portion of the mixing chamber and downstream from the swirl-generating device, and injects the additive into the mixing chamber.
    Type: Application
    Filed: July 18, 2008
    Publication date: January 22, 2009
    Applicant: MITSUBISHI FUSO TRUCK AND BUS CORPORATION
    Inventors: Yasuko SUZUKI, Hiroaki FUJITA, Satoshi HIRANUMA, Shinichi SAITO, Yoshio NAKAYAMA
  • Patent number: 7477031
    Abstract: A hybrid electric vehicle is arranged such that a driving force of an engine and a driving force of an electric motor can be transmitted to driving wheels through a transmission and that the engine and the transmission can be mechanically connected and disconnected by means of a clutch. When an upper limit decelerating torque generable by the electric motor is equal to or greater than a requested decelerating torque, a vehicle ECU disengages the clutch and controls the electric motor to generate the requested decelerating torque. Meanwhile, when the upper limit decelerating torque is smaller than the requested decelerating torque, the vehicle ECU engages the clutch and controls the engine and the electric motor so that the sum of a decelerating torque generated by the engine and a decelerating torque generated by the electric motor is equal to the requested decelerating torque.
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: January 13, 2009
    Assignee: Mitsubishi Fuso Truck and Bus Corporation
    Inventors: Makoto Ogata, Tatsuo Kiuchi
  • Patent number: 7470214
    Abstract: Electric-motor drive control means controls a clutch engaging/disengaging actuator including two electric motors. When a vehicle starts moving or changes gears, the electric-motor drive control means drives both of the two electric motors in drive modes that require high responsiveness from an automatic clutch device and drives the two electric motors alternately in other drive modes that do not require high responsiveness. Malfunctions of the electric motors are detected during the operation. When one of the electric motors malfunctions, a warning is issued and the actuator is driven with the other electric motor that is normal. When both of the electric motors malfunction, a warning prompting a driver to stop the vehicle is issued.
    Type: Grant
    Filed: March 30, 2006
    Date of Patent: December 30, 2008
    Assignee: Mitsubishi Fuso Truck and Bus Corporation
    Inventor: Atsushi Kumazawa
  • Patent number: 7463965
    Abstract: The invention provides a roll-over suppressing control apparatus for a vehicle wherein appropriate braking force can be applied to a turning outer wheel in response to a situation and a rolling state of the vehicle to suppress otherwise possible roll-over of the vehicle while assuring the traveling performance. A roll parameter value detection section detects a parameter value corresponding to a rolling state of a vehicle, and a turning type decision section decides a type of turning of the vehicle. A roll-over suppressing control section controls a braking mechanism in a predetermined period so that, when the rolling state of the vehicle upon turning of the vehicle is excessive with respect to a first reference state, an amount of braking force corresponding to the magnitude of the roll parameter value and the type of turning. By the control, while the traveling performance of the vehicle is assured, roll-over of the vehicle can be suppressed effectively to assure the stability of the vehicle.
    Type: Grant
    Filed: September 29, 2004
    Date of Patent: December 9, 2008
    Assignee: Mitsubishi Fuso Truck and Bus Corporation
    Inventor: Kunio Sakata
  • Patent number: 7398849
    Abstract: A structure for mounting electronic apparatuses in an electric motor-driven vehicle has a pair of first brackets each having a base part that is fixed to the side face of a chassis frame extending in the longitudinal direction of the vehicle and an arm part extending in the lateral direction of the vehicle. A pair of second brackets is fixed to the upper surfaces of the arm parts such that they extend in the longitudinal direction of the vehicle with a space between them. A battery unit is placed on the upper surfaces of the second brackets, and an electronic apparatus unit is placed under the battery unit between the second brackets. The structure enables electronic apparatuses to be mounted compactly, improves the efficiency of the electric motor by reducing the length of high voltage electric cables, and increases the available space for mounting the refrigerating system.
    Type: Grant
    Filed: October 27, 2005
    Date of Patent: July 15, 2008
    Assignee: Mitsubishi Fuso Truck and Bus Corporation
    Inventor: Kei Yoshida
  • Publication number: 20080167790
    Abstract: An EGR control device includes an EGR control means (44) which, when a large-amount EGR is requested, continuously controls an EGR valve (26) toward a fully open condition, and then continuously controls an intake throttle valve (12) toward a fully closed condition, and in a dead region where a change in the opening of the intake throttle valve only causes a small change in EGR quantity, the control means restricts a feedback control of the EGR quantity using the intake throttle valve and performs a feedback control of the EGR quantity using the EGR valve to compensate for the restriction of the feedback control using the intake throttle valve.
    Type: Application
    Filed: November 28, 2005
    Publication date: July 10, 2008
    Applicant: MITSUBISHI FUSO TRUCK AND BUS CORPORATION
    Inventors: Seijiro Kotooka, Susumu Kohketsu, Hitoshi Yokomura
  • Patent number: 7395658
    Abstract: There is provided an apparatus that estimates the NOx adsorption amount, comprising a NOx trap catalyst that is disposed in an exhaust passage of an engine, for adsorbing NOx in exhaust gases during lean operation and releasing and reducing the adsorbed NOx during rich operation, an operation unit that computes an amount of emission from the catalyst during rich operation by using a map or a polynomial equation that reflects emissions from the catalyst based on the exhaust gas temperature and the exhaust gas flow rate of the exhaust passage and the excess-air factor upstream of the catalyst, and an estimating unit that estimates an amount of adsorption in the NOx trap catalyst from the computed emission amount.
    Type: Grant
    Filed: September 23, 2005
    Date of Patent: July 8, 2008
    Assignee: Mitsubishi Fuso Truck and Bus Corporation
    Inventors: Daisuke Sunohara, Susumu Kouketsu, Shinji Nakayama, Keiki Tanabe
  • Patent number: 7388967
    Abstract: A vehicle running state judging apparatus calculates the edge detecting position of the first pixel group detected by the first gray value detection section, the edge detecting position of the second pixel group based on the gray value at that position, and the gray value at that position and judges meandering of a vehicle by comparing the edge detecting position of the second pixel group detected by the second gray value detection section and the gray value at that position, with the edge detecting position of the second pixel group calculated by the calculation section and the gray value at that position.
    Type: Grant
    Filed: March 28, 2005
    Date of Patent: June 17, 2008
    Assignee: Mitsubishi Fuso Truck and Bus Corporation
    Inventors: Toru Ihara, Keiichi Yamamoto
  • Patent number: 7377877
    Abstract: A gear shift control apparatus for a hybrid vehicle can achieve enhancement of the transmission efficiency and enhancement of the fuel cost without damaging the drivability to the utmost. The gear shift control apparatus for a hybrid vehicle includes an engine, a transmission for changing the speed of rotation of the engine, and a motor for assisting the driving force of the engine. The assist torque maximum value of the motor is set higher when the gear position of the transmission is a predetermined gear position at which the transmission efficiency of the driving force is highest than when the gear position is any other gear position than the predetermined gear position.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: May 27, 2008
    Assignee: Mitsubishi Fuso Truck and Bus Corporation
    Inventor: Makoto Ogata