公开(公告)号：US09926686B2

公开(公告)日：2018-03-27

申请号：US14905377

申请日：2015-01-19

Applicant: KOMATSU LTD.

Inventor： Yasuki Kishimoto ,  Hiroshi Monden ,  Shunsuke Miyamoto ,  Yasunori Ohkura

IPC: F16H3/72 ,  B60W10/08 ,  E02F9/20 ,  B60K6/365 ,  B60K6/445 ,  B60K6/54 ,  B60L11/14 ,  B60W10/02 ,  B60W10/04 ,  B60W10/06 ,  B60W10/10 ,  B60W10/101 ,  B60W20/00 ,  B60L1/00 ,  B60L3/00 ,  B60L3/04 ,  B60L15/20 ,  B60K6/387 ,  B60K6/547 ,  B60L11/18 ,  E02F3/28 ,  E02F9/02 ,  E02F9/22 ,  F16H61/02 ,  B60W50/029 ,  B60K1/02 ,  F16H37/04 ,  B60K6/48 ,  B60K6/38

CPC classification number: E02F9/202 ,  B60K1/02 ,  B60K6/365 ,  B60K6/387 ,  B60K6/445 ,  B60K6/54 ,  B60K6/547 ,  B60K2006/381 ,  B60K2006/4816 ,  B60L1/003 ,  B60L3/0061 ,  B60L3/04 ,  B60L11/14 ,  B60L11/18 ,  B60L15/2054 ,  B60L2200/40 ,  B60L2240/421 ,  B60W10/02 ,  B60W10/04 ,  B60W10/06 ,  B60W10/08 ,  B60W10/10 ,  B60W10/101 ,  B60W20/00 ,  B60W20/50 ,  B60W50/029 ,  E02F3/283 ,  E02F9/02 ,  E02F9/2217 ,  F16H3/724 ,  F16H3/725 ,  F16H3/727 ,  F16H61/0267 ,  F16H2037/049 ,  Y02T10/6239 ,  Y02T10/6286 ,  Y02T10/645 ,  Y02T10/70 ,  Y02T10/7077 ,  Y02T10/7275 ,  Y10S903/91 ,  Y10S903/919

Abstract: A gear mechanism of a power train includes first and second planetary gear mechanisms, which respectively include first to third rotating elements and fourth to sixth rotating elements which are each different to each other. The transmission section transfers the drive force of the second rotating element to the fourth rotating element. A rotating shaft fixing section of a power train integrally operates the rotating shafts of the third and fifth rotating elements. A variable transmission section of a power train includes an input section where drive force is input and an output section configured to output drive force equal to or less than the input drive force. A drive force conversion control section of a controller controls the variable transmission section to enable the output of the engine to be converted to an appropriate drive force and the converted drive force to be transferred to the output shaft.

公开(公告)号：US09682615B2

公开(公告)日：2017-06-20

申请号：US14909168

申请日：2015-01-20

Applicant: KOMATSU LTD.

Inventor： Yasuki Kishimoto ,  Hiroshi Monden ,  Hiroyuki Tajima ,  Yasunori Ohkura

IPC: B60K6/445 ,  E02F3/28 ,  E02F9/20 ,  B60K6/365 ,  B60K6/387 ,  B60W10/18 ,  B60K6/547 ,  B60W20/13 ,  F16H59/40 ,  B60K6/38

CPC classification number: B60K6/445 ,  B60K6/365 ,  B60K6/387 ,  B60K6/547 ,  B60K2006/381 ,  B60W10/182 ,  B60W20/13 ,  E02F3/283 ,  E02F9/202 ,  E02F9/2075 ,  E02F9/2091 ,  F16H59/40 ,  Y02T10/6239 ,  Y10S903/903

Abstract: A power transmission device includes a gear mechanism, a predetermined controlling rotation element, an energy-generating motor, and a connected motor connected to the controlling rotation element. The energy storage unit is configured to store the energy generated by the energy-generating motor. The gear mechanism includes a first planetary gear mechanism, which includes a first rotation element, a second rotation element, and a third rotation element, which are mutually different. The engine is connected to the first rotation element. The energy-generating motor is connected to the third rotation element. The controlling rotation element may be at least one of the rotation elements between the second rotation element and the connected motor. The controller controls the locking of the controlling rotation element to thereby lock the second rotation element, and causes the energy-generating motor to rotate using the drive power from the engine to thereby accumulate energy in the energy storage unit.

公开(公告)号：US09765500B2

公开(公告)日：2017-09-19

申请号：US15030439

申请日：2014-12-17

Applicant: KOMATSU LTD.

Inventor： Shunsuke Miyamoto ,  Yasunori Ohkura

IPC: E02F9/20 ,  B60K6/365 ,  B60K6/48 ,  B60K6/543 ,  B60L11/14 ,  B60W10/08 ,  B60W10/10 ,  B60W10/26 ,  B60W20/00 ,  F16H3/66 ,  F16H3/72 ,  B60L11/00 ,  B60L11/18 ,  B60L15/20 ,  B60K6/28 ,  E02F9/22 ,  F16H37/10 ,  E02F3/28

CPC classification number: E02F9/2075 ,  B60K6/28 ,  B60K6/365 ,  B60K6/445 ,  B60K6/46 ,  B60K6/48 ,  B60K6/543 ,  B60L11/005 ,  B60L11/14 ,  B60L11/1861 ,  B60L15/2009 ,  B60L15/2045 ,  B60L15/2054 ,  B60L2200/36 ,  B60L2200/40 ,  B60L2210/40 ,  B60L2240/12 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/441 ,  B60L2240/443 ,  B60L2240/486 ,  B60L2240/507 ,  B60L2250/24 ,  B60L2250/26 ,  B60W10/08 ,  B60W10/10 ,  B60W10/26 ,  B60W20/00 ,  B60W20/13 ,  B60W2300/17 ,  B60W2520/10 ,  B60W2540/16 ,  B60W2710/244 ,  B60Y2200/415 ,  B60Y2400/11 ,  B60Y2400/73 ,  E02F3/283 ,  E02F9/202 ,  E02F9/2079 ,  E02F9/2091 ,  E02F9/2253 ,  E02F9/2285 ,  E02F9/2292 ,  E02F9/2296 ,  F16H3/66 ,  F16H3/72 ,  F16H3/728 ,  F16H2037/101 ,  F16H2200/2007 ,  F16H2200/2041 ,  Y02T10/6217 ,  Y02T10/6221 ,  Y02T10/6239 ,  Y02T10/645 ,  Y02T10/70 ,  Y02T10/7005 ,  Y02T10/7022 ,  Y02T10/7044 ,  Y02T10/705 ,  Y02T10/7077 ,  Y02T10/7241 ,  Y02T10/7283

Abstract: A power transmission device of a work vehicle includes a generator, a motor, and an energy storage unit. The energy storage unit stores electricity generated by the generator. A forward/backward travel switch operation device receives an instruction for forward or backward travel from an operator. A vehicle speed detection unit detects the speed of the vehicle. A control unit includes an energy management requirement determination unit. The energy management requirement determination unit determines, on the basis of the difference between a target electricity storage amount and a current electricity storage amount in the energy storage unit, the energy management required power required by the power transmission device for charging the energy storage unit. The energy management requirement determination unit increases the target electricity storage amount when a first travel direction according to the instruction and a second travel direction determined from the vehicle speed are different.

公开(公告)号：US09695575B2

公开(公告)日：2017-07-04

申请号：US14891730

申请日：2014-10-31

Applicant: KOMATSU LTD.

Inventor： Shunsuke Miyamoto ,  Yasunori Ohkura

IPC: E02F9/20 ,  B60K6/365 ,  B60K6/445 ,  B60K6/52 ,  B60L11/14 ,  B60W10/02 ,  B60W10/08 ,  B60W10/10 ,  B60W20/00 ,  F16H3/72 ,  F16H61/02 ,  E02F9/22 ,  E02F3/28 ,  E02F3/42 ,  F16H37/10

CPC classification number: E02F9/2079 ,  B60K6/365 ,  B60K6/445 ,  B60K6/52 ,  B60L11/14 ,  B60L2200/40 ,  B60W10/02 ,  B60W10/08 ,  B60W10/10 ,  B60W20/00 ,  E02F3/283 ,  E02F3/422 ,  E02F9/2066 ,  E02F9/2075 ,  E02F9/2292 ,  E02F9/2296 ,  F16H3/727 ,  F16H3/728 ,  F16H61/0246 ,  F16H2037/104 ,  F16H2200/2035 ,  Y02T10/6239 ,  Y02T10/6265

Abstract: A controller includes a neutral control determination unit, a forward-reverse clutch control unit, and a commanded torque setting unit. The neutral control determination unit executes quasi-neutral control when a quasi-neutral control determination condition is satisfied. The quasi-neutral control determination condition includes cases where the forward-reverse operation member is in the neutral position. The forward-reverse clutch control unit keeps the forward-travel clutch or the reverse-travel clutch engaged during the quasi-neutral control. During quasi-neutral control, the commanded torque setting unit determines a commanded torque sent to the motor so that a neutral state is set where the output torque from the power transmission device to the travel device is kept at a prescribed value regardless of the drive power output from the engine.

公开(公告)号：US09267269B2

公开(公告)日：2016-02-23

申请号：US14653433

申请日：2014-06-25

Applicant: KOMATSU LTD.

Inventor： Shunsuke Miyamoto ,  Hiroshi Monden ,  Hikosaburou Hiraki ,  Yasuo Fujiwara ,  Yasunori Ohkura

IPC: E02F9/20 ,  E02F3/28 ,  E02F3/42

CPC classification number: E02F9/2079 ,  B60K6/365 ,  B60K6/387 ,  B60K6/445 ,  B60K6/485 ,  B60K2006/381 ,  B60L11/005 ,  B60L11/126 ,  B60L11/14 ,  B60L15/20 ,  B60L15/2054 ,  B60L2200/40 ,  B60L2220/42 ,  B60L2240/423 ,  B60W10/06 ,  B60W10/08 ,  B60W10/115 ,  B60W10/26 ,  B60W20/00 ,  B60W20/11 ,  B60W30/18127 ,  B60W30/1884 ,  B60W50/0097 ,  B60W2300/17 ,  B60W2510/1005 ,  B60W2520/10 ,  B60W2540/10 ,  B60W2540/12 ,  B60W2710/0666 ,  B60W2710/0677 ,  B60W2710/083 ,  B60W2710/105 ,  B60Y2200/411 ,  E02F3/283 ,  E02F3/422 ,  E02F9/02 ,  E02F9/202 ,  E02F9/2029 ,  E02F9/2066 ,  E02F9/2075 ,  E02F9/2091 ,  E02F9/2296 ,  F16H3/66 ,  F16H3/72 ,  F16H2200/2007 ,  Y02T10/6217 ,  Y02T10/6239 ,  Y02T10/6291 ,  Y02T10/645 ,  Y02T10/646 ,  Y02T10/7022 ,  Y02T10/7077 ,  Y02T10/72 ,  Y02T10/7258 ,  Y02T10/7275 ,  Y02T10/84 ,  Y10S903/93 ,  Y10S903/945

Abstract: A target-input-torque determination unit determines the target input torque on the basis of the transmission required horsepower. The target input torque is a target value for the torque to be inputted to a power-transmission device. A target-output-torque determination unit determines the target output torque, which is a target value for the torque to be outputted by the power-transmission device. A command-torque determination unit uses torque-balance information to determine command torque for the motor from the target input torque and the target output torque. The target-input-torque determination unit determines the upper limit of the target input torque on the basis of an upper-limit-target-input-torque line and the engine rotation speed. The upper-limit-target-input-torque line sets a value smaller than the target output torque of the engine determined using the engine required horsepower and the engine rotation speed for the upper-limit value of the target input torque.

Abstract translation: 目标输入转矩确定单元基于所需的传动功率来确定目标输入转矩。 目标输入转矩是要输入到动力传递装置的扭矩的目标值。 目标输出转矩确定单元确定作为动力传递装置要输出的转矩的目标值的目标输出转矩。 命令转矩确定单元使用转矩平衡信息来从目标输入转矩和目标输出转矩确定电动机的指令转矩。 目标输入转矩确定单元基于上限 - 目标输入扭矩线和发动机转速来确定目标输入转矩的上限。 上限目标输入扭矩线设定小于使用发动机所需功率确定的发动机的目标输出转矩以及用于目标输入转矩的上限值的发动机转速的值。

公开(公告)号：US09840827B2

公开(公告)日：2017-12-12

申请号：US14759122

申请日：2014-09-09

Applicant: KOMATSU LTD.

Inventor： Shunsuke Miyamoto ,  Hiroshi Monden ,  Yasunori Ohkura ,  Masao Yoshizawa ,  Yasuki Kishimoto

IPC: E02F9/20 ,  B60K6/36 ,  B60K6/445 ,  B60L11/14 ,  B60W10/08 ,  B60W10/10 ,  B60W20/00 ,  F16H61/02 ,  F16H61/688 ,  F16H3/66 ,  F16H3/72 ,  B60L11/00 ,  B60L11/12 ,  B60L15/20 ,  B60K6/365 ,  E02F9/02 ,  E02F9/22 ,  F16H3/44 ,  F16H37/10 ,  E02F3/34

CPC classification number: E02F9/2079 ,  B60K6/12 ,  B60K6/36 ,  B60K6/365 ,  B60K6/387 ,  B60K6/445 ,  B60K6/547 ,  B60K2006/381 ,  B60L11/005 ,  B60L11/123 ,  B60L11/14 ,  B60L15/20 ,  B60L2200/40 ,  B60L2210/40 ,  B60L2240/12 ,  B60L2240/36 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/441 ,  B60L2240/443 ,  B60L2240/486 ,  B60L2240/507 ,  B60L2250/24 ,  B60L2250/26 ,  B60L2260/26 ,  B60W10/08 ,  B60W10/10 ,  B60W10/115 ,  B60W20/00 ,  B60W20/10 ,  B60W2300/17 ,  B60W2710/083 ,  B60W2710/1005 ,  E02F3/34 ,  E02F9/02 ,  E02F9/202 ,  E02F9/2075 ,  E02F9/22 ,  E02F9/2296 ,  F16H3/44 ,  F16H3/66 ,  F16H3/72 ,  F16H3/728 ,  F16H61/02 ,  F16H61/688 ,  F16H2037/104 ,  F16H2200/2007 ,  F16H2200/2035 ,  Y02T10/6208 ,  Y02T10/6217 ,  Y02T10/6239 ,  Y02T10/6282 ,  Y02T10/645 ,  Y02T10/7022 ,  Y02T10/7077 ,  Y02T10/7241 ,  Y02T10/7275

Abstract: A control unit embedded in a work vehicle includes a clutch controlling unit and a motor controlling unit. The clutch controlling unit is configured to disengage a first clutch in a condition that the first clutch is engaged and a second clutch is disengaged, when a first moving direction inputted through a forward/rearward movement switch operating device as an instruction of the operator and a second moving direction determined based on a vehicle speed detected by a vehicle speed detecting unit are different from each other, and in addition, when and the vehicle speed falls in a preliminarily set first range. The motor controlling unit is configured to control a motor to reduce a relative rotational speed of the second clutch after the first clutch is disengaged.

公开(公告)号：US09797115B2

公开(公告)日：2017-10-24

申请号：US14909183

申请日：2015-01-20

Applicant: KOMATSU LTD.

Inventor： Yasuki Kishimoto ,  Hiroshi Monden ,  Yasunori Ohkura

IPC: E02F9/20 ,  B60W10/02 ,  B60W10/06 ,  B60W10/08 ,  B60W10/26 ,  B60W20/13 ,  B60K6/445 ,  B60K6/365 ,  B60W20/11 ,  E02F9/22 ,  F16H3/72 ,  F16H37/10

CPC classification number: E02F9/2075 ,  B60K6/365 ,  B60K6/445 ,  B60W10/02 ,  B60W10/06 ,  B60W10/08 ,  B60W10/26 ,  B60W20/11 ,  B60W20/13 ,  B60W2300/17 ,  B60W2510/244 ,  B60W2710/021 ,  B60W2710/0644 ,  B60W2710/081 ,  B60W2710/244 ,  E02F9/2079 ,  E02F9/2091 ,  E02F9/2292 ,  E02F9/2296 ,  F16H3/728 ,  F16H2037/101 ,  F16H2200/2007 ,  F16H2200/2041 ,  Y02T10/6239 ,  Y02T10/6286 ,  Y10S903/93

Abstract: A power transmission device includes an input shaft, an output shaft, a gear mechanism, an energy-generating motor, a first clutch, and a locking device. The energy storage unit is configured to store the energy generated by the energy-generating motor. The gear mechanism includes a planetary gear mechanism, which includes a first rotation element, a second rotation element, and a third rotation element, which are mutually different. The first clutch is provided in the power transmission route between the engine and the first rotation element. The locking device locks or releases the second rotation element. The energy-generating motor is connected to the third rotation element. A controller locks the second rotation element, converges the rotation speeds of two rotation shafts in the first clutch to cause the first clutch to engage, and rotates the energy-generating motor using drive power from the engine to thereby accumulate energy in the energy storage unit.

公开(公告)号：US09341200B2

公开(公告)日：2016-05-17

申请号：US14759039

申请日：2014-09-03

Applicant: KOMATSU LTD.

Inventor： Shunsuke Miyamoto ,  Kenichi Yamada ,  Yasunori Ohkura ,  Yasuki Kishimoto ,  Masao Yoshizawa

IPC: F15B1/02 ,  F15B21/00 ,  B60K6/445 ,  B60L11/14 ,  B60L11/18 ,  B60W10/08 ,  B60W10/10 ,  B60W10/26 ,  B60W20/00 ,  F16H3/66 ,  F16H3/72 ,  F16H37/10

CPC classification number: F15B21/001 ,  B60K6/12 ,  B60K6/365 ,  B60K6/387 ,  B60K6/445 ,  B60K6/547 ,  B60K2006/381 ,  B60L7/18 ,  B60L11/14 ,  B60L11/18 ,  B60L11/1861 ,  B60L2200/40 ,  B60L2240/12 ,  B60L2240/421 ,  B60L2260/26 ,  B60W10/06 ,  B60W10/08 ,  B60W10/10 ,  B60W10/115 ,  B60W10/26 ,  B60W20/00 ,  B60W20/10 ,  B60W30/18045 ,  B60W2300/17 ,  B60W2710/0666 ,  B60W2710/083 ,  E02F9/202 ,  E02F9/2079 ,  F15B1/02 ,  F15B2201/00 ,  F16H3/66 ,  F16H3/72 ,  F16H3/728 ,  F16H2037/101 ,  F16H2200/2007 ,  F16H2200/2041 ,  Y02T10/6208 ,  Y02T10/6239 ,  Y02T10/6282 ,  Y02T10/6286 ,  Y02T10/642 ,  Y02T10/7005 ,  Y02T10/7044 ,  Y02T10/705

Abstract: The target input shaft torque determination unit determines a target input shaft torque. The target output shaft torque determination unit determines a target output shaft torque so that a deceleration force for decelerating the vehicle is generated on the output shaft of the power transmission device in a state in which connection and disconnection states of the forward travel clutch and the reverse travel clutch are maintained at the state before the start of the shuttle action when the shuttle action is started. The torque-balance information is stored in a storage unit and defines a relationship between the target input shaft torque and the target output shaft torque to achieve a balance of the torques of a power transmission device. The command torque determination unit uses the torque-balance information to determine torque commands for the motor from the target input shaft torque and the target output shaft torque.

Abstract translation: 目标输入轴转矩确定单元确定目标输入轴转矩。 目标输出轴转矩确定单元确定目标输出轴扭矩，使得在前进行驶离合器和倒车的连接和断开状态的状态下，在动力传递装置的输出轴上产生用于减速的减速力 行驶离合器保持在穿梭动作开始前的状态。 转矩平衡信息存储在存储单元中，并且定义目标输入轴转矩和目标输出轴转矩之间的关系，以实现动力传递装置的转矩的平衡。 指令转矩确定单元使用转矩平衡信息，从目标输入轴转矩和目标输出轴转矩来确定电动机的转矩指令。

公开(公告)号：US10407864B2

公开(公告)日：2019-09-10

申请号：US14653485

申请日：2014-06-25

Applicant: KOMATSU LTD.

Inventor： Shunsuke Miyamoto ,  Hiroshi Monden ,  Hikosaburou Hiraki ,  Yasuo Fujiwara ,  Yasunori Ohkura

IPC: E02F3/28 ,  E02F9/20 ,  B60K6/485 ,  B60W10/115 ,  E02F3/42 ,  B60W10/06 ,  B60W10/26 ,  B60L15/20 ,  B60W10/08 ,  B60W20/00 ,  F16H3/66 ,  B60K6/365 ,  B60K6/387 ,  B60K6/445 ,  B60W50/00 ,  B60W20/11 ,  B60L50/40 ,  B60L50/62 ,  B60L50/16 ,  B60K6/38 ,  B60W30/18 ,  B60W30/188

Abstract: The work implement requirement determination unit determines a work implement required horsepower on the basis of an operation amount of a work implement operating member and a hydraulic pressure of a hydraulic pump. A transmission requirement determination unit determines a transmission required horsepower on the basis of a vehicle speed and the operation amount of the accelerator operating member. An engine requirement determination unit determines an engine required horsepower on the basis of the work implement required horsepower and the transmission required horsepower. The required throttle determination unit determines a required throttle value based on an engine requirement.

公开(公告)号：US20190031014A1

公开(公告)日：2019-01-31

申请号：US16077224

申请日：2017-03-24

Applicant: Komatsu Ltd.

Inventor： Masao Yoshizawa ,  Shunsuke Miyamoto ,  Yasunori Ohkura

IPC: B60K6/445 ,  B60K6/54 ,  B60L11/14 ,  B60W10/08 ,  B60W20/17 ,  E02F9/22 ,  B60L15/20

Abstract: A hybrid work vehicle includes a traveling device and a control device. The traveling device includes first and second rotary electric machines, an internal-combustion engine, a power transmission device transmitting power output from the engine to a vehicle wheel through at least the first and second machines, a third rotary electric machine applying power to at least one of the first and second machines, and a braking device braking the vehicle wheel. The control device executes a first control of applying the power of the third machine to at least one of the first and second machines and a second control of canceling the first control when a vehicle speed of the traveling device becomes or exceeds a speed threshold value and continuously applies the power from the third machine when a braking force of the braking device is larger than a braking force threshold value during the second control.