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公开(公告)号:US20150167796A1
公开(公告)日:2015-06-18
申请号:US14571796
申请日:2014-12-16
Applicant: DENSO CORPORATION
Inventor: Hitoshi NOGUCHI , Hiroshi OKADA , Shuzo ODA , Tomoaki NAKANO , Yoshihiro YAMASHITA , Yousuke YAMAMOTO , Kazuhisa HARA
CPC classification number: F16H7/1281 , B60W20/00 , F02N11/04 , F02N15/02 , F02N15/08 , F16H2007/0861 , F16H2007/0885 , Y10S903/909 , Y10T477/23
Abstract: A power transmission system transmits power from a drive shaft of an internal combustion engine to a first and a second auxiliary device through a belt. An auto-tensioner extends or contracts to change the tension of the belt. A controller rotates the first auxiliary device in a reverse direction to loosen the belt to cause the auto-tensioner to extend to increase the tension of the belt and calculates a reversing timing when the drive shaft will be reversed as a result of increasing of the tension of the belt. The controller inhibits the tensioner body from contracting immediately before or when the reversing time is reached to keep the tension of the belt at an increased degree, thereby eliminating the slippage of the belt on each pulley without having to finely control the operation of the first auxiliary device when the internal combustion engine is started.
Abstract translation: 动力传动系统通过皮带将动力从内燃机的驱动轴传递到第一和第二辅助装置。 自动张紧器延伸或收缩以改变皮带的张力。 控制器使第一辅助装置沿相反方向旋转以松开皮带,使自动张紧器延伸以增加皮带的张力,并计算当驱动轴由于张力增加而反转时的换向时机 的皮带。 控制器在紧急反转时间之前或之后阻止张紧器体收缩,以保持皮带的张力增加,从而消除皮带在每个滑轮上的滑动,而不必精细地控制第一辅助件的操作 内燃机启动时的装置。
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公开(公告)号:US20130324360A1
公开(公告)日:2013-12-05
申请号:US13870245
申请日:2013-04-25
Applicant: DENSO CORPORATION
Inventor: Tomohiro SAITO , Hiroshi OKADA
CPC classification number: B60W20/00 , B60K6/387 , B60K6/48 , B60K2006/4841 , B60W10/02 , B60W2510/0291 , Y02T10/6221 , Y10S903/902 , Y10T477/26
Abstract: A first slip travel mode is traveling or starting in a state where a first clutch is fully connected and a third clutch is fully disconnected while a second clutch is slipped. A second slip travel mode is traveling or starting in a state where the first clutch is fully connected and the second clutch is fully disconnected while the third clutch is slipped. An overheat avoidance mode is traveling or starting in a state where the first clutch is fully disconnected and the second clutch is fully connected while the third clutch is slipped. When the second clutch is in a high-temperature state under the first slip travel mode or the third clutch is in a high-temperature state under the second slip travel mode, the slip travel mode is switched into the overheat avoidance mode. This reduces a heat value of the second clutch or third clutch.
Abstract translation: 第一滑行行驶模式是在第一离合器完全连接的状态下行驶或开始,并且第三离合器在第二离合器滑动时完全断开。 第二滑行行驶模式是在第一离合器完全连接的状态下行驶或起动,并且第二离合器在第三离合器滑动时完全断开。 过热回避模式是在第一离合器完全断开的状态下行驶或开始,并且第二离合器在第三离合器滑动时完全连接。 当第二离合器在第一滑移行驶模式下处于高温状态或者在第二滑移行驶模式下处于高温状态时,滑移行驶模式切换到过热回避模式。 这降低了第二离合器或第三离合器的热值。
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公开(公告)号:US20170335925A1
公开(公告)日:2017-11-23
申请号:US15599015
申请日:2017-05-18
Applicant: DENSO CORPORATION
Inventor: Yukihiro HONDA , Hiroshi OKADA , Akinori KUWAYAMA
CPC classification number: F16H1/32 , B60K17/046
Abstract: An eccentric speed variator includes a first rotor, a second rotor, a third rotor, a cylindrical pin, and a flange. The second rotor has a hole formed therein. The third rotor rotates eccentrically to change a relative rotation phase between the first and second rotors. The cylindrical pin extends through the hole of the second rotor to establish mechanical engagement between the second and third rotors. The flange is secured to or integrally formed with an end of the cylindrical pin. In operation, when the flange contacts the outside wall of the second rotor, it serves to minimize inclination of the third rotor relative to the second rotor, thereby reducing local friction between the second and third rotors to eliminate undesirable mechanical vibration or noise. This structure also enables parts of the cycloidal speed reducer to be decreased, which leads to a reduced size of the cycloidal speed reducer.
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公开(公告)号:US20160375890A1
公开(公告)日:2016-12-29
申请号:US15196451
申请日:2016-06-29
Applicant: DENSO CORPORATION
Inventor: Tomohiro SAITO , Hiroshi OKADA , Yukihiro JO , Kazutoshi NISHINAKAMURA
CPC classification number: B60W20/10 , B60K6/36 , B60K6/387 , B60K6/48 , B60K6/547 , B60K2006/4808 , B60K2006/4825 , B60W10/06 , B60W10/08 , B60W10/11 , B60W20/15 , B60W20/30 , B60W30/19 , B60W2510/081 , B60W2510/1005 , B60W2520/10 , B60W2520/105 , B60W2710/021 , B60W2710/0644 , B60W2710/081 , B60W2710/083 , B60W2710/1005 , B60Y2200/92 , B60Y2300/43 , B60Y2300/60 , B60Y2300/70 , B60Y2400/42 , B60Y2400/70 , Y02T10/6221 , Y02T10/6252 , Y02T10/626 , Y02T10/6286 , Y10S903/914 , Y10S903/919 , Y10S903/93
Abstract: A drive control apparatus includes a motor control unit and a gear shift control unit, and controls a power transmission system including first and second motors and a gear shift mechanism. When the gear shift mechanism is changed from a first gear stage to a second gear stage during deceleration of the vehicle, the motor control unit controls the first motor to be at a target rotation speed determined based on a gear ratio of a second power transmission gear and a rotation speed of an output shaft, and controls a second motor such that required brake torque is generated by the second motor. The gear shift control unit controls the gear shift mechanism so as to be in a neutral state in which power is not transmitted between an input shaft and the output shaft, until a rotation speed of the first motor becomes the target rotation speed.
Abstract translation: 驱动控制装置包括马达控制单元和变速控制单元,并且控制包括第一和第二马达和变速机构的动力传动系统。 当变速机构在车辆减速期间从第一档位改变到第二档位时,电动机控制单元将第一电动机控制为基于第二动力传递齿轮的齿轮比所确定的目标转速 和输出轴的转速,并且控制第二电动机,使得由第二电动机产生所需的制动转矩。 变速控制单元将变速机构控制成处于不输入输出轴和输出轴之间的动力的中立状态,直到第一马达的转速成为目标转速为止。
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公开(公告)号:US20130166127A1
公开(公告)日:2013-06-27
申请号:US13726341
申请日:2012-12-24
Applicant: DENSO CORPORATION
Inventor: Kazutoshi NISHINAKAMURA , Hiroshi OKADA , Tomohiro SAITO , Hiroyuki USAMI , Hitoshi NOGUCHI
IPC: B60W10/02
CPC classification number: B60W10/02 , B60K6/442 , B60K6/547 , B60W10/11 , B60W10/18 , B60W20/00 , B60W20/14 , B60W20/30 , Y02T10/6234 , Y10S903/946 , Y10S903/947
Abstract: A vehicle driving system control apparatus includes a regeneration control section that performs a regeneration control when a vehicle is decelerated. In the regeneration control, the regeneration control section drives at least one of a first motor generator and a second motor generator with a power of an axle so as to charge a battery with an electric power generated with the at least one of the first motor generator and the second motor generator. The regeneration control section selects a mode of the regeneration control by controlling engagement and disengagement statuses of first to third clutches in correspondence with at least one of a target energy regeneration amount, a required brake torque and a vehicle speed.
Abstract translation: 车辆驱动系统控制装置包括:再生控制部,其在车辆减速时进行再生控制。 在再生控制中,再生控制部分驱动具有轴功率的第一电动发电机和第二电动发电机中的至少一个,以便用第一电动发电机中的至少一个产生的电力对蓄电池充电 和第二马达发电机。 再生控制部根据目标能量再生量,所需的制动转矩和车速中的至少一个来控制第一至第三离合器的接合和分离状态来选择再生控制的模式。
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公开(公告)号:US20200271215A1
公开(公告)日:2020-08-27
申请号:US16788573
申请日:2020-02-12
Applicant: DENSO CORPORATION
Inventor: Yukihiro HONDA , Hiroshi OKADA
Abstract: An eccentric oscillating speed reducer includes an input rotor, a first rotor, a second rotor, a planetary rotor, a flow passage, a contact portion and a radial relief groove. The flow passage includes an axial gap located between the planetary rotor and a contact member. The flow passage conducts a lubricant oil that is forced to flow by a centrifugal force. The contact portion is placed in a drive force transmission path from the planetary rotor to the second rotor. The contact portion includes: a planetary rotor end surface of the planetary rotor located on a side where the second rotor is placed; and a second rotor end surface of the second rotor, which is opposed to the planetary rotor end surface. The radial relief groove forms a portion of the flow passage and extends through a radial width of the planetary rotor end surface.
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公开(公告)号:US20190120092A1
公开(公告)日:2019-04-25
申请号:US16159878
申请日:2018-10-15
Applicant: DENSO CORPORATION
Inventor: Kazuaki NEMOTO , Hiroshi OKADA
CPC classification number: F01L1/352 , F01L1/022 , F01L2001/3521 , F01L2250/02 , F01L2820/032 , F16H1/32 , F16H49/001
Abstract: A joint includes a rotation transmitting portion and a stopper portion. The rotation transmitting portion abuts on a relative rotating portion in a circumferential direction. The stopper portion is capable of abutting on the relative rotating portion to restrict an axial position of the relative rotating portion. The stopper portion of the joint which rotates at the same speed as the relative rotating portion restricts an axial position of the relative rotating portion, whereby a sliding movement does not occur between the relative rotating portion and the stopper portion. It can be restricted that a power transmission efficiency is decreased and an abrasive wear is generated.
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公开(公告)号:US20180250750A1
公开(公告)日:2018-09-06
申请号:US15907709
申请日:2018-02-28
Applicant: DENSO CORPORATION , SUMITOMO ELECTRIC SINTERED ALLOY, LTD.
Inventor: Ken MATSUBARA , Hirotake HAMAMATSU , Hiroshi OKADA , Akira IWASAKI , Junya ASAOKA , Masanori AIKI , Naoto IGARASHI , Terukazu TOKUOKA , Hiroaki TERAI , Yuki TSUKAMOTO , Senichi SUMI
CPC classification number: B22F3/24 , B22F3/16 , B22F2003/248 , B22F2301/35 , C22C33/0264 , C22C38/12 , C22C38/16
Abstract: An iron base sintered alloy has a chemical composition including at least Fe, Cu and C, and a sintered structure including a residual austenite and a martensite. The sintered structure includes a precipitated Cu element that was dissolved in the martensite and that has been precipitated from the martensite. A method for manufacturing an iron base sintered alloy includes conducting a Cu precipitation treatment for a sintered alloy that has a chemical composition including at least Fe, Cu and C, and a sintered structure including a residual austenite and a martensite to precipitate Cu element dissolved in the martensite.
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公开(公告)号:US20160160830A1
公开(公告)日:2016-06-09
申请号:US14956964
申请日:2015-12-02
Applicant: DENSO CORPORATION
Inventor: Hitoshi NOGUCHI , Hiroshi OKADA , Hideki KIMURA , Shinjirou SHIMIZU , Yuka SUGIURA , Yousuke YAMAMOTO , Kiyoshi IWADE
IPC: F02N11/08
CPC classification number: F02N11/04 , F01L1/0532 , F01L2001/0537 , F01L2001/34496 , F02B67/06 , F02D41/0002 , F02D2041/001 , F02D2200/501 , F02D2200/602 , F02N15/08 , F02N19/00 , F02N19/004 , F02N19/005 , F02N2019/008 , F02N2300/104 , F16H7/1281 , F16H2007/0874 , F16H2007/0885 , F16H2007/0887 , Y02T10/42
Abstract: A control apparatus for an internal combustion engine is provided which works to control an electric motor to start the engine through a belt transmission system. The control apparatus restricts rotation of the electric motor so as to keep a speed of the electric motor below a speed at which the electric motor is capable of producing a maximum torque until a given period of time passes since the electric motor is actuated to start in the motor mode. This enables the electric motor to generate the maximum torque when it is required to crank the engine.
Abstract translation: 提供一种用于内燃机的控制装置,其用于控制电动机以通过带传动系统启动发动机。 控制装置限制电动机的旋转,以便将电动机的速度保持在低于电动机能够产生最大转矩的速度,直到电动机被致动以开始为止,经过给定的时间段 电机模式。 这使得电动机在需要起动发动机时产生最大转矩。
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公开(公告)号:US20150167797A1
公开(公告)日:2015-06-18
申请号:US14573296
申请日:2014-12-17
Applicant: DENSO CORPORATION
Inventor: Hitoshi NOGUCHI , Hiroshi OKADA , Tomoaki NAKANO , Yoshihiro YAMASHITA , Yousuke YAMAMOTO , Kazuhisa HARA , Toshihisa NAKAJIMA , Kazuki MATSUO , Toshikazu MORI , Shuhei OE , Hikaru KOKUMAI , Kiyoshi IWADE
CPC classification number: F16H7/1281 , F02B67/06 , F02N11/04 , F02N11/0814 , F02N11/0844 , F02N15/02 , F02N15/08 , F02N2200/125 , F16H2007/0812 , F16H2007/0885 , Y02T10/48 , Y10S903/909 , Y10T477/23
Abstract: A power transmission system transmits power from an internal combustion engine to a first and a second auxiliary device through an endless transmitting member. Prior to issuing of an engine start request, the first auxiliary device is actuated to move a tensioner pulley to a given position to increase the degree of tension of the endless transmitting member. The actuation of the first auxiliary device as an engine starter upon the issuing of the engine start request, therefore, enables a drive shaft of the engine to be rotated immediately within a required time to crank the engine. This achieves a quick start of the engine and results in a decrease in amount of time between the issuing of the engine start request and the actual start of the engine.
Abstract translation: 动力传动系统通过环形传递构件将动力从内燃机传递到第一和第二辅助装置。 在发出发动机起动请求之前,第一辅助装置被致动以将张紧器滑轮移动到给定位置以增加环形传动构件的张力。 因此,在发动发动机启动请求时作为发动机起动器的第一辅助装置的致动使得能够在所需时间内立即旋转发动机的驱动轴以使发动机起动。 这实现了发动机的快速启动,并且导致在发动发动机起动请求和发动机的实际启动之间的时间量的减少。
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