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公开(公告)号：US20160298315A1
公开(公告)日：2016-10-13
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 , E02F9/02 , B60K6/365 , B60K6/445 , B60L11/14 , F16H61/688 , B60W10/08 , B60W10/10 , B60W20/00 , F16H3/44 , F16H3/72 , F16H61/02 , E02F9/22 , B60L15/20
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.
Abstract translation: 嵌入工作车辆中的控制单元包括离合器控制单元和马达控制单元。 离合器控制单元被构造成当通过作为操作者的指示的前后左右移动开关操作装置输入的第一移动方向时，在第一离合器接合的状态下和第二离合器脱离的状态下使第一离合器脱离， 基于由车速检测单元检测到的车速确定的第二移动方向彼此不同，此外，当车速落在预先设定的第一范围内时。 电动机控制单元被配置为在第一离合器分离之后控制电动机以减小第二离合器的相对转速。
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公开(公告)号：US20160040394A1
公开(公告)日：2016-02-11
申请号：US14781687
申请日：2014-12-10
Applicant: KOMATSU LTD.
Inventor： Hiroshi MONDEN , Shunsuke MIYAMOTO , Yasuki KISHIMOTO , Shogo MIYAZAKI , Yasunori OHKURA
IPC: E02F9/20 , E02F9/22 , B60K6/365 , B60W20/00 , B60K6/445 , B60W10/02 , B60W10/08 , E02F3/34 , B60K6/387
CPC classification number: E02F9/2079 , B60K6/365 , B60K6/387 , B60K6/445 , B60W10/02 , B60W10/08 , B60W20/00 , B60W20/20 , B60Y2200/415 , E02F3/34 , E02F9/202 , E02F9/2296 , F16H3/46 , F16H3/62 , F16H3/72 , F16H3/728 , F16H61/08 , F16H61/42 , F16H61/686 , F16H2037/104 , F16H2200/2007 , F16H2200/2035 , Y02T10/6239 , Y10S903/902
Abstract: When a clutch is in the disengaged state, the predicted engagement time determining unit determines a predicted engagement time. The predicted engagement time is the predicted value for the time required from the beginning of the clutch engagement until engagement is complete. The speed ratio parameter estimating unit determines an estimated value for a speed ratio parameter after the elapse of the predicted engagement time from the current point in time. When the estimated value for the speed ratio parameter reaches a mode-switching threshold value, a clutch control unit outputs a clutch command signal for causing the clutch to engage.
Abstract translation: 当离合器处于分离状态时，预测接合时间确定单元确定预测的接合时间。 预计的接合时间是从离合器接合开始到接合完成所需的时间的预测值。 速比参数估计单元从当前时间点起经过预测的接合时间之后，确定速度比参数的估计值。 当速比参数的估计值达到模式切换阈值时，离合器控制单元输出用于使离合器啮合的离合器命令信号。
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公开(公告)号：US20170044736A1
公开(公告)日：2017-02-16
申请号：US14904487
申请日：2014-12-10
Applicant: KOMATSU LTD.
Inventor： Shunsuke MIYAMOTO , Kenichi YAMADA , Kaoru YASUDA
CPC classification number: E02F9/207 , B60K6/365 , B60K6/387 , B60K6/44 , B60K6/445 , B60K6/54 , B60K6/547 , B60K2006/381 , B60L11/005 , B60L11/123 , B60L11/14 , B60L15/2054 , B60L2200/40 , B60L2240/12 , B60L2240/421 , B60L2240/423 , B60L2240/441 , B60L2240/486 , B60L2250/24 , B60L2250/26 , B60W10/08 , B60W10/10 , B60W20/00 , B60W2300/17 , B60W2510/088 , B60W2710/083 , B60Y2200/415 , E02F3/283 , E02F3/3411 , E02F9/2004 , E02F9/202 , E02F9/2075 , E02F9/2079 , F16H3/728 , H02P5/747 , Y02P90/60 , Y02T10/6217 , Y02T10/6239 , Y02T10/645 , Y02T10/7022 , Y02T10/7077 , Y02T10/72 , Y02T10/7275 , Y10S903/903
Abstract: A power transmission device of a work vehicle has an input shaft, an output shaft, a gear mechanism, and an electric motor. The gear mechanism has a planetary gear mechanism and transmits the rotation of the input shaft to the output shaft. The electric motor is connected to a rotating element of the planetary gear mechanism. The power transmission device is configured to change the rotation speed ratio of the output shaft with respect to the input shaft by changing the rotation speed of the electric motor. A control unit has a target torque determination unit and a target torque correcting unit. The target torque determination unit determines a target torque of the electric motor. The target torque correcting unit corrects the target torque according to a correction torque based on a moment of inertia of the electric motor.
Abstract translation: 工作车辆的动力传递装置具有输入轴，输出轴，齿轮机构和电动马达。 齿轮机构具有行星齿轮机构，并将输入轴的旋转传递到输出轴。 电动机连接到行星齿轮机构的旋转元件。 动力传递装置通过改变电动机的转速来改变输出轴相对于输入轴的转速比。 控制单元具有目标扭矩确定单元和目标扭矩校正单元。 目标转矩确定单元确定电动机的目标转矩。 目标扭矩校正单元根据基于电动机的惯性矩的校正转矩来校正目标转矩。
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公开(公告)号：US20160097186A1
公开(公告)日：2016-04-07
申请号：US14892703
申请日：2014-12-17
Applicant: KOMATSU LTD.
Inventor： Kenichi YAMADA , Shunsuke MIYAMOTO
CPC classification number: E02F9/2246 , B60K6/28 , B60K6/365 , B60K6/387 , B60K6/445 , B60K6/50 , B60K6/547 , B60K25/02 , B60K2006/381 , B60W10/06 , B60W10/08 , B60W10/105 , B60W10/30 , B60W20/00 , B60W20/10 , B60W2300/17 , B60W2510/0638 , B60W2510/0666 , B60W2510/1035 , B60W2510/244 , B60W2510/305 , B60W2520/10 , B60W2520/12 , B60W2540/10 , B60W2540/16 , B60W2710/0666 , B60W2710/083 , B60W2710/1005 , B60W2710/1022 , B60W2710/105 , B60W2710/1061 , B60W2710/305 , E02F9/2066 , E02F9/2075 , E02F9/2079 , E02F9/2253 , E02F9/2289 , E02F9/2292 , E02F9/2296 , F02D29/04 , Y02T10/6239 , Y10S903/93
Abstract: A work implement requirement determination unit of a work vehicle determines a work implement required power based on the operation amount of a work implement operating member and the work implement pump pressure. A transmission requirement determination unit determines a transmission required power based on the vehicle speed and the operation amount of the accelerator operating member. When the sum of the work implement required power and the transmission required power is greater than a first distributable power that a predetermined preferential distribution power subtracted from a load upper limit power of the engine leaves, a distribution ratio determination unit allocates the smaller of a transmission compensation power and the transmission required power to a power transmission device and distributes the remainder of the first distributable power to the work implement pump and to a power transmission device.
Abstract translation: 作业车辆的作业要求确定单元基于作业工具操作构件的操作量和作业工具泵的压力来确定作业工具所需的动力。 发送需求确定单元基于车速和加速器操作构件的操作量确定发送所需电力。 当工作实现所需功率和传输所需功率的总和大于从发动机的负载上限功率所减去的预定优先分配功率的第一可分配功率时，分配比率确定单元分配较小的传输 补偿功率和对功率传输装置的传输所需的功率，并将第一可分配功率的剩余部分分配到工作装置泵和功率传输装置。
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公开(公告)号：US20170274896A1
公开(公告)日：2017-09-28
申请号：US15622321
申请日：2017-06-14
Applicant: KOMATSU LTD.
Inventor： Kenichi YAMADA , Shunsuke MIYAMOTO
IPC: B60W30/02 , B60W10/10 , B60W10/18 , B60W10/30 , E02F3/28 , E02F9/20 , F16H61/04 , F16H59/18 , F16H59/44 , F16H59/48 , F16H59/54
CPC classification number: B60W30/02 , B60W10/10 , B60W10/18 , B60W10/30 , B60W2300/17 , B60W2540/10 , B60W2710/10 , B60W2710/18 , B60W2710/30 , B60Y2200/415 , E02F3/283 , E02F9/202 , E02F9/2079 , F16H59/18 , F16H59/44 , F16H59/48 , F16H59/54 , F16H61/0437
Abstract: A control unit in a work vehicle executes an automatic downshift for shifting a transmission from a current speed range to a speed range that is lower than the current speed range when at least a first condition, a second condition, a third condition, and a fourth condition are satisfied. The first condition is that an operating amount of an accelerator operating member of the work vehicle is equal to or greater than a predetermined accelerator threshold. The second condition is that a vehicle speed of the work vehicle is less than a predetermined speed threshold. The third condition is that a vehicle acceleration of the work vehicle is equal to or less than a predetermined acceleration threshold. The fourth condition is that that the hydraulic pressure of a hydraulic fluid supplied to a brake device of the work vehicle is less than a predetermined brake threshold.
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Patent Agency Ranking
公开(公告)号：US20160237651A1
公开(公告)日：2016-08-18
申请号：US15026675
申请日：2014-12-17
Applicant: KOMATSU LTD.
Inventor： Shunsuke MIYAMOTO , Masao YOSHIZAWA , Yasuo FUJIWARA
CPC classification number: E02F9/2079 , B60K6/365 , B60K6/387 , B60K6/445 , B60K2006/381 , B60W10/06 , B60W10/08 , B60W10/10 , B60W20/00 , B60W20/30 , B60W30/182 , B60W2300/17 , B60W2510/0638 , B60W2520/10 , B60W2710/0644 , B60Y2200/415 , B60Y2300/70 , B60Y2400/73 , E02F3/283 , E02F9/2004 , E02F9/202 , E02F9/2066 , E02F9/2075 , E02F9/2292 , E02F9/2296 , F16H3/44 , F16H3/728 , F16H59/18 , F16H2037/101 , F16H2061/6601 , F16H2061/6602 , F16H2200/2007 , F16H2200/2041 , Y02T10/6239 , Y10S903/903
Abstract: A power transmission device of a work vehicle includes a mode switching mechanism configured to switch a drive power transmission route to one mode of at least two modes. A second mode is used in a range with the higher transmission speed ratio than a first mode. A controller increases the rotation speed of the engine from a first rotation speed for the engine corresponding to a first vehicle speed when the vehicle speed is within a range greater than the first vehicle speed where the transmission speed ratio reaches a predetermined first value that is less than the maximum value of the transmission speed ratio obtainable by the power transmission device. When the transmission route is in the second mode, the first value is greater than a second value of the transmission speed ratio at which the rotation speeds of the first motor and the second motor are equal.
Abstract translation: 工作车辆的动力传递装置包括模式切换机构，其被配置为将驱动力传递路线切换到至少两种模式的一种模式。 在比第一模式更高的传动速度比的范围内使用第二模式。 当车速在大于第一车速的范围内时，控制器将发动机的转速从对应于第一车速的发动机的第一转速增加到传动速度比达到预定第一值的第一车速以下 超过由动力传递装置获得的传动速度比的最大值。 当传输路径处于第二模式时，第一值大于第一电动机和第二电动机的转速相等的变速比的第二值。
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公开(公告)号：US20150361636A1
公开(公告)日：2015-12-17
申请号：US14763869
申请日：2014-12-09
Applicant: KOMATSU LTD.
Inventor： Masao YOSHIZAWA , Shunsuke MIYAMOTO , Yasuki KISHIMOTO
CPC classification number: E02F3/422 , B60K6/387 , B60K6/445 , B60K6/54 , B60W10/08 , B60W20/00 , B60W20/10 , B60W2300/17 , B60W2540/10 , E02F3/34 , E02F9/2075 , E02F9/2079 , E02F9/2253 , E02F9/2292 , E02F9/2296 , Y02T10/6239 , Y10S903/902
Abstract: A control unit of a work vehicle has a transmission requirement determination unit, a command-torque determination unit, and a tractive force limiting unit. The transmission requirement determination unit determines a required tractive force on the basis of an operating amount of an accelerator operating member. The required tractive force is a target tractive force of a travel device. The command-torque determination unit determines an output torque of the electric motor so that the tractive force of the vehicle reaches the required tractive force. The tractive force limiting unit reduces the required tractive force to a value less than a value corresponding to the operating amount of the accelerator operating member when the vehicle is excavating.
Abstract translation: 作业车辆的控制单元具有变速器要求判定单元，指令转矩确定单元和牵引力限制单元。 发送需求确定单元基于加速器操作构件的操作量来确定所需的牵引力。 所需的牵引力是行驶装置的目标牵引力。 指令转矩确定单元确定电动机的输出转矩，使得车辆的牵引力达到所需的牵引力。 牵引力限制单元将所需的牵引力减小到小于在车辆正在挖掘时对应于加速器操作构件的操作量的值。
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公开(公告)号：US20150337877A1
公开(公告)日：2015-11-26
申请号：US14759039
申请日：2014-09-03
Applicant: KOMATSU LTD.
Inventor： Shunsuke MIYAMOTO , Kenichi YAMADA , Yasunori OHKURA , Yasuki Kishimoto , Masao YOSHIZAWA
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。
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公开(公告)号：US20160251828A1
公开(公告)日：2016-09-01
申请号：US15030439
申请日：2014-12-17
Applicant: KOMATSU LTD.
Inventor： Shunsuke MIYAMOTO , Yasunori OHKURA
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.
Abstract translation: 工作车辆的动力传递装置包括发电机，电动机和能量存储单元。 能量存储单元存储由发电机产生的电力。 前进/后退行驶开关操作装置从操作者接收用于前进或后退行驶的指令。 车速检测单元检测车辆的速度。 控制单元包括能量管理要求确定单元。 能量管理要求确定单元基于目标蓄电量与能量存储单元中的当前蓄电量之间的差来确定用于对能量存储单元充电的电力传输装置所需的能量管理所需的电力。 当根据指示的第一行进方向和从车速确定的第二行驶方向不同时，能量管理要求确定单元增加目标蓄电量。
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公开(公告)号：US20160144720A1
公开(公告)日：2016-05-26
申请号：US14903380
申请日：2014-07-22
Applicant: KOMATSU LTD.
Inventor： Masanobu NAKABAYASHI , Shunsuke MIYAMOTO , Yasuki KISHIMOTO
IPC: B60L3/12 , B60K6/50 , B60L11/14 , E02F9/26 , B60W10/00 , B60W20/00 , E02F3/28 , E02F9/20 , B60K6/22 , B60R16/02
CPC classification number: B60L3/12 , B60K6/22 , B60K6/365 , B60K6/387 , B60K6/445 , B60K6/50 , B60K6/547 , B60K35/00 , B60K2006/381 , B60K2350/1092 , B60L1/003 , B60L11/005 , B60L11/123 , B60L11/14 , B60L11/1861 , B60L15/2054 , B60L2200/40 , B60L2210/40 , B60L2240/12 , B60L2240/421 , B60L2240/423 , B60L2240/441 , B60L2240/443 , B60L2240/486 , B60L2240/545 , B60L2240/547 , B60L2240/549 , B60L2250/16 , B60R16/02 , B60W10/00 , B60W20/00 , B60Y2200/41 , B60Y2200/92 , B60Y2300/182 , B60Y2400/61 , E02F3/283 , E02F9/202 , E02F9/2075 , E02F9/2079 , E02F9/2091 , E02F9/2292 , E02F9/2296 , E02F9/26 , E02F9/267 , Y02T10/6217 , Y02T10/6239 , Y02T10/645 , Y02T10/70 , Y02T10/7005 , Y02T10/7022 , Y02T10/7044 , Y02T10/705 , Y02T10/7077 , Y02T10/7241 , Y02T10/7275 , Y02T10/84 , Y10S903/904
Abstract: A state display section of a work vehicle is configured to display whether an electricity storage apparatus is in an electricity charging or discharging state. A state determination unit is configured to determine the state to be displayed on the state display section on the basis of a parameter corresponding to electricity supplied to or discharged from the electricity storage apparatus. The state determination unit is configured to change a threshold for a parameter for determining if the state to be displayed on the state display section is to be set to the charging state (discharging state) based on whether or not the state displayed on the state display section most recently is the charging state (discharging state). Until a predetermined first time period elapses, the state determination section is configured to determine the state after the change as the state to be displayed on the state display section.
Abstract translation: 作业车辆的状态显示部被配置为显示蓄电装置是否处于充电或放电状态。 状态确定单元被配置为基于与供电或从蓄电装置排出的电力相对应的参数来确定要在状态显示部分上显示的状态。 状态确定单元被配置为基于是否在状态显示器上显示的状态来改变用于确定要显示在状态显示部分上的状态是否被设置为充电状态（放电状态）的参数的阈值 最近是充电状态（放电状态）。 直到经过预定的第一时间段，状态确定部分被配置为将改变之后的状态确定为要显示在状态显示部分上的状态。
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