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公开(公告)号：US20150198074A1
公开(公告)日：2015-07-16
申请号：US14354943
申请日：2014-01-14
Applicant: Komatsu Ltd.
Inventor： Tadashi Mori , Jin Yogita
IPC: F01N3/20
CPC classification number: F01N3/2066 , E02F9/0866 , E02F9/268 , F01N3/021 , F01N3/2006 , F01N3/208 , F01N13/1805 , F01N2240/20 , F01N2340/04 , F01N2550/05 , F01N2560/06 , F01N2610/02 , F01N2610/11 , F01N2610/1453 , F01N2610/146 , F01N2610/1473 , F02D29/04 , F02D41/042 , F02D41/2403 , F02D2041/228 , Y02A50/2325 , Y02T10/24 , Y02T10/47
Abstract: A work vehicle includes an engine, an injector injecting a reducing agent to an exhaust gas exhausted from the engine, a determination portion determining whether or not a temperature of the injector is high, a stop determination portion determining whether or not the engine has stopped while the injector is in a high-temperature state as a result of determination by the determination portion, a counter counting the number of times of stop of the engine while the injector is in the high-temperature state based on a result of determination by the stop determination portion, and a warning portion giving a warning in connection with stop of the engine when a count value of the counter exceeds a first prescribed value.
Abstract translation: 工作车辆包括发动机，将发动机排出的排气喷射还原剂的喷射器，确定喷射器的温度是否高的判定部，判定发动机是否停止的停止判定部， 作为由确定部确定的结果，喷射器处于高温状态，当喷射器处于高温状态时，基于停止的确定结果计数发动机的停止次数的计数器 确定部分，以及当计数器的计数值超过第一规定值时与发动机停止相关的警告。
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公开(公告)号：US20140060026A1
公开(公告)日：2014-03-06
申请号：US14003690
申请日：2012-12-06
Applicant: KOMATSU LTD.
Inventor： Manabu Himoto , Daisuke Tsumura , Yoshimasa Ohbora , Jin Yogita
CPC classification number: E02F9/226 , E02F9/125 , E02F9/2285 , E02F9/2296 , E02F9/265 , F15B11/08 , F15B20/00 , F15B2211/30525 , F15B2211/329 , F15B2211/355 , F15B2211/6316 , F15B2211/6355 , F15B2211/665 , F15B2211/8643
Abstract: A lock valve switching section switches a lock valve from a locked state to a released state when a lock member is switched from a locked position to a release position. An erroneous operation monitoring section maintains the lock valve in the released state when the pilot pressure is equal to or more than a predetermined pressure when elapsed time, which is from a point in time where the lock member is switched from the locked position to the release position, is equal to or more than the predetermined time. The erroneous operation monitoring section switches the lock valve to the locked state when the pilot pressure is equal to or more than the predetermined pressure when the elapsed time is less than the predetermined time.
Abstract translation: 当锁定构件从锁定位置切换到释放位置时，锁定阀切换部分将锁定阀从锁定状态切换到释放状态。 当经过时间时，当先导压力等于或大于预定压力时，错误操作监视部件将锁定阀保持在释放状态，该时间是从锁定部件从锁定位置切换到释放的时间 位置等于或大于预定时间。 当经过时间小于预定时间时，当先导压力等于或大于预定压力时，错误操作监视部分将锁定阀切换到锁定状态。
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公开(公告)号：US09249710B2
公开(公告)日：2016-02-02
申请号：US14354943
申请日：2014-01-14
Applicant: KOMATSU LTD.
Inventor： Tadashi Mori , Jin Yogita
IPC: F01N3/00 , F01N3/10 , F01N3/02 , F01N3/20 , F02D41/04 , F01N13/18 , F01N3/021 , F02D41/24 , F02D41/22 , E02F9/08 , E02F9/26 , F02D29/04
CPC classification number: F01N3/2066 , E02F9/0866 , E02F9/268 , F01N3/021 , F01N3/2006 , F01N3/208 , F01N13/1805 , F01N2240/20 , F01N2340/04 , F01N2550/05 , F01N2560/06 , F01N2610/02 , F01N2610/11 , F01N2610/1453 , F01N2610/146 , F01N2610/1473 , F02D29/04 , F02D41/042 , F02D41/2403 , F02D2041/228 , Y02A50/2325 , Y02T10/24 , Y02T10/47
Abstract: A work vehicle includes an engine, an injector injecting a reducing agent to an exhaust gas exhausted from the engine, a determination portion determining whether or not a temperature of the injector is high, a stop determination portion determining whether or not the engine has stopped while the injector is in a high-temperature state as a result of determination by the determination portion, a counter counting the number of times of stop of the engine while the injector is in the high-temperature state based on a result of determination by the stop determination portion, and a warning portion giving a warning in connection with stop of the engine when a count value of the counter exceeds a first prescribed value.
Abstract translation: 工作车辆包括发动机，将发动机排出的排气喷射还原剂的喷射器，确定喷射器的温度是否高的判定部，判定发动机是否停止的停止判定部， 作为由确定部确定的结果，喷射器处于高温状态，当喷射器处于高温状态时，基于停止的确定结果计数发动机的停止次数的计数器 确定部分，以及当计数器的计数值超过第一规定值时与发动机停止相关的警告。
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公开(公告)号：US20150240454A1
公开(公告)日：2015-08-27
申请号：US14372108
申请日：2014-02-26
Applicant: KOMATSU LTD.
Inventor： Jin Yogita , Eiji Morinaga , Kozo Okuda , Kazuyoshi Morimoto
CPC classification number: E02F9/2066 , E02F3/32 , E02F9/0866 , E02F9/0883 , E02F9/2235 , F01N3/2066 , F01N11/00 , F01N2550/05 , F01N2590/08 , F02D41/021 , F02D41/0275 , F02D41/22 , F02D41/2422 , F02D2041/228 , F02D2200/604 , F02D2250/26 , Y02A50/2325 , Y02T10/40 , Y02T10/47
Abstract: A work vehicle having a plurality of working modes allowing working in accordance with a load state includes an engine, an exhaust gas purification apparatus, a reducing agent tank, a state determination portion, and an engine control unit. The exhaust gas purification apparatus purifies a nitrogen oxide in an exhaust gas. The reducing agent tank stores a reducing agent. The state determination portion determines a state of the reducing agent. The engine control unit controls output of the engine with the use of a restricted-operation engine output torque curve in which horsepower output from the engine is lower than horsepower output from the engine at the time when each of the plurality of working modes is selected, when a state of the reducing agent is equal to or lower than a reference value.
Abstract translation: 具有允许根据负载状态进行工作的多个工作模式的作业车辆包括发动机，排气净化装置，还原剂箱，状态判定部和发动机控制单元。 废气净化装置净化废气中的氮氧化物。 还原剂罐储存还原剂。 状态判定部判定还原剂的状态。 发动机控制单元通过使用限制运行的发动机输出转矩曲线来控制发动机的输出，在选择多个工作模式中的每一个时，来自发动机的马力输出低于从发动机输出的马力， 当还原剂的状态等于或低于参考值时。
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公开(公告)号：US20150025753A1
公开(公告)日：2015-01-22
申请号：US14126948
申请日：2013-07-22
Applicant: KOMATSU LTD.
Inventor： Tadashi Mori , Jin Yogita
CPC classification number: E02F9/2066 , E02F9/2296 , E02F9/26 , F02D17/00 , F02D29/04 , F02D31/001 , F02D2200/60 , F02N11/0829 , Y02T10/48
Abstract: A work vehicle includes an engine, an idling stop execution portion, a determination portion, a counting portion, and an idling stop time period adjustment portion. The engine can rotate in a first idling state and a second idling state in which the engine rotates at the number of rotations higher than a prescribed number of rotations. The idling stop execution portion performs an idling stop operation for stopping the engine. The determination portion determines whether or not stop has been made from the second idling state. The counting portion counts the number of times of stop of the engine from the second idling state. An idling stop time period adjustment portion makes a prescribed time period of the second idling state longer than a current time period, when the number of times of stop of the engine is equal to or greater than the prescribed number of times.
Abstract translation: 工作车辆包括发动机，怠速停止执行部分，判定部分，计数部分和怠速停止时间段调节部分。 发动机可以在第一怠速状态和第二怠速状态下旋转，其中发动机以高于规定转速的转速旋转。 怠速停止执行部执行用于停止发动机的怠速停止操作。 确定部分确定是否已经从第二空转状态进行了停止。 计数部对第二怠速状态的发动机的停止次数进行计数。 当发动机的停止次数等于或大于规定次数时，怠速停止时间段调整部使第二空转状态的规定时间段比当前时间段长。
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Patent Agency Ranking
公开(公告)号：US20150082774A1
公开(公告)日：2015-03-26
申请号：US14235142
申请日：2013-09-25
Applicant: KOMATSU LTD.
Inventor： Kiichirou Kouno , Ken Itou , Jin Yogita , Kozo Okuda , Yasuyuki Onodera , Hideo Oguri , Shouhei Nagasaka , Minato Tomuro
CPC classification number: F01N3/208 , E02F3/7609 , E02F9/0866 , F01N3/2066 , F01N3/28 , F01N9/00 , F01N2590/08 , F01N2610/02 , F01N2610/105 , F01N2610/14 , F01N2610/148 , F01N2900/1811 , Y02A50/2325 , Y02T10/24
Abstract: A work vehicle includes a vehicle body, a guiding pipe, a first heating section, and a second heating section. The vehicle body has a partition wall that partitions a space in an inner section into a first region and a second region. The guiding pipe is configured to guide a reducing agent. The guiding pipe has a first pipe section and a second pipe section. The first pipe section is positioned inside the first region. The second pipe section is positioned in the second region. The first heating section heats the first pipe section. The second heating section heats the second pipe section and adjusts the temperature independently from the first heating section.
Abstract translation: 工作车辆包括车体，引导管，第一加热部和第二加热部。 车体具有将内部区域中的空间分隔成第一区域和第二区域的分隔壁。 引导管构造成引导还原剂。 引导管具有第一管段和第二管段。 第一管段位于第一区域内。 第二管段位于第二区域中。 第一加热部加热第一管段。 第二加热部分加热第二管段并独立于第一加热部分调节温度。
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公开(公告)号：US08972124B2
公开(公告)日：2015-03-03
申请号：US14126948
申请日：2013-07-22
Applicant: Komatsu Ltd.
Inventor： Tadashi Mori , Jin Yogita
CPC classification number: E02F9/2066 , E02F9/2296 , E02F9/26 , F02D17/00 , F02D29/04 , F02D31/001 , F02D2200/60 , F02N11/0829 , Y02T10/48
Abstract: A work vehicle includes an engine, an idling stop execution portion, a determination portion, a counting portion, and an idling stop time period adjustment portion. The engine can rotate in a first idling state and a second idling state in which the engine rotates at the number of rotations higher than a prescribed number of rotations. The idling stop execution portion performs an idling stop operation for stopping the engine. The determination portion determines whether or not stop has been made from the second idling state. The counting portion counts the number of times of stop of the engine from the second idling state. An idling stop time period adjustment portion makes a prescribed time period of the second idling state longer than a current time period, when the number of times of stop of the engine is equal to or greater than the prescribed number of times.
Abstract translation: 工作车辆包括发动机，怠速停止执行部分，判定部分，计数部分和怠速停止时间段调节部分。 发动机可以在第一怠速状态和第二怠速状态下旋转，其中发动机以高于规定转速的转速旋转。 怠速停止执行部执行用于停止发动机的怠速停止操作。 确定部分确定是否已经从第二空转状态进行了停止。 计数部对第二怠速状态的发动机的停止次数进行计数。 当发动机的停止次数等于或大于规定次数时，怠速停止时间段调整部使第二空转状态的规定时间段比当前时间段长。
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公开(公告)号：US09758946B2
公开(公告)日：2017-09-12
申请号：US14372108
申请日：2014-02-26
Applicant: KOMATSU LTD.
Inventor： Jin Yogita , Eiji Morinaga , Kozo Okuda , Kazuyoshi Morimoto
IPC: E02F9/20 , F02D41/02 , E02F9/22 , E02F3/32 , E02F9/08 , F01N11/00 , F02D41/22 , F02D41/24 , F01N3/20
CPC classification number: E02F9/2066 , E02F3/32 , E02F9/0866 , E02F9/0883 , E02F9/2235 , F01N3/2066 , F01N11/00 , F01N2550/05 , F01N2590/08 , F02D41/021 , F02D41/0275 , F02D41/22 , F02D41/2422 , F02D2041/228 , F02D2200/604 , F02D2250/26 , Y02A50/2325 , Y02T10/40 , Y02T10/47
Abstract: A work vehicle having a plurality of working modes allowing working in accordance with a load state includes an engine, an exhaust gas purification apparatus, a reducing agent tank, a state determination portion, and an engine control unit. The exhaust gas purification apparatus purifies a nitrogen oxide in an exhaust gas. The reducing agent tank stores a reducing agent. The state determination portion determines a state of the reducing agent. The engine control unit controls output of the engine with the use of a restricted-operation engine output torque curve in which horsepower output from the engine is lower than horsepower output from the engine at the time when each of the plurality of working modes is selected, when a state of the reducing agent is equal to or lower than a reference value.
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公开(公告)号：US09726065B2
公开(公告)日：2017-08-08
申请号：US14235142
申请日：2013-09-25
Applicant: KOMATSU LTD.
Inventor： Kiichirou Kouno , Ken Itou , Jin Yogita , Kozo Okuda , Yasuyuki Onodera , Hideo Oguri , Shouhei Nagasaka , Minato Tomuro
CPC classification number: F01N3/208 , E02F3/7609 , E02F9/0866 , F01N3/2066 , F01N3/28 , F01N9/00 , F01N2590/08 , F01N2610/02 , F01N2610/105 , F01N2610/14 , F01N2610/148 , F01N2900/1811 , Y02A50/2325 , Y02T10/24
Abstract: A work vehicle includes a vehicle body, a guiding pipe, a first heating section, and a second heating section. The vehicle body has a partition wall that partitions a space in an inner section into a first region and a second region. The guiding pipe is configured to guide a reducing agent. The guiding pipe has a first pipe section and a second pipe section. The first pipe section is positioned inside the first region. The second pipe section is positioned in the second region. The first heating section heats the first pipe section. The second heating section heats the second pipe section and adjusts the temperature independently from the first heating section.
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公开(公告)号：US08833068B2
公开(公告)日：2014-09-16
申请号：US14003690
申请日：2012-12-06
Applicant: Komatsu Ltd.
Inventor： Manabu Himoto , Daisuke Tsumura , Yoshimasa Ohbora , Jin Yogita
CPC classification number: E02F9/226 , E02F9/125 , E02F9/2285 , E02F9/2296 , E02F9/265 , F15B11/08 , F15B20/00 , F15B2211/30525 , F15B2211/329 , F15B2211/355 , F15B2211/6316 , F15B2211/6355 , F15B2211/665 , F15B2211/8643
Abstract: A lock valve switching section switches a lock valve from a locked state to a released state when a lock member is switched from a locked position to a release position. An erroneous operation monitoring section maintains the lock valve in the released state when the pilot pressure is equal to or more than a predetermined pressure when elapsed time, which is from a point in time where the lock member is switched from the locked position to the release position, is equal to or more than the predetermined time. The erroneous operation monitoring section switches the lock valve to the locked state when the pilot pressure is equal to or more than the predetermined pressure when the elapsed time is less than the predetermined time.
Abstract translation: 当锁定构件从锁定位置切换到释放位置时，锁定阀切换部分将锁定阀从锁定状态切换到释放状态。 当经过时间时，当先导压力等于或大于预定压力时，错误操作监视部件将锁定阀保持在释放状态，该时间是从锁定部件从锁定位置切换到释放的时间 位置等于或大于预定时间。 当经过时间小于预定时间时，当先导压力等于或大于预定压力时，错误操作监视部分将锁定阀切换到锁定状态。
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