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公开(公告)号:US09957695B2
公开(公告)日:2018-05-01
申请号:US15508205
申请日:2015-12-25
Applicant: KCM Corporation
Inventor: Takashi Takeyama , Keigo Kikuchi , Katsutaka Hara , Masashi Yamashita
IPC: B60K1/04 , B60K5/00 , B60K6/20 , E02F9/08 , B60K13/02 , B60K13/04 , E02F9/00 , F01N3/28 , F01N3/10 , F01N3/20 , F02M35/04 , E02F3/34
CPC classification number: E02F9/0866 , B60K13/02 , B60K13/04 , E02F3/34 , E02F9/00 , E02F9/0891 , F01N3/103 , F01N3/206 , F01N3/2066 , F01N3/28 , F01N2490/06 , F01N2570/10 , F01N2570/12 , F01N2570/14 , F01N2590/08 , F01N2610/02 , F02M35/042
Abstract: An exhaust system of a work machine is equipped with a first exhaust system, a second exhaust system, and a third exhaust system. The first exhaust system and the third exhaust system are arranged to be in parallel with respective one ends directed in the same direction. In a plan view, the second exhaust system is arranged with the other end side directed in the same direction as the one end sides of the first exhaust system and the third exhaust system to be in parallel with the first exhaust system and the third exhaust system between the first exhaust system and the third exhaust system and, in a side view, is arranged above the first exhaust system and the third exhaust system.
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公开(公告)号:US09458758B2
公开(公告)日:2016-10-04
申请号:US14358324
申请日:2012-11-15
Applicant: KCM Corporation
Inventor: Koji Hyodo , Atsushi Shimazu , Isamu Aoki , Tetsuji Tanaka , Keigo Kikuchi
IPC: F16D31/02 , F01P7/02 , F16H61/4165 , F16H61/4043 , F01P7/04 , F16H61/4061 , F01P5/04 , E02F9/22 , B60K25/02
CPC classification number: F01P7/02 , B60K2025/026 , E02F9/226 , F01P5/043 , F01P7/044 , F16H61/4043 , F16H61/4061 , F16H61/4165
Abstract: A cooling fan control unit, in response to an operation performed at the rotation direction selector switch to select a reverse rotation setting while the cooling fan is rotating forward, lowers a relief pressure setting at the variable relief valve to a predetermined lower limit value over a predetermined length of time, and once the discharge pressure at the hydraulic pump detected by the pressure sensor is lowered to a predetermined switch-over pressure, executes control so as to switch the direction of flow of pressure oil to the hydraulic motor to the reverse direction by switching the direction switching valve and raises the relief pressure setting at the variable relief valve to a reverse rotation pressure setting, at which the hydraulic motor rotates in the reverse direction, over a predetermined length of time.
Abstract translation: 一种冷却风扇控制单元,响应于在所述旋转方向选择开关处进行的操作以在所述冷却风扇向前旋转时选择反向旋转设定,将所述可变溢流阀上的溢流压力设定值降低到预定的下限值 预定的时间长度,一旦由压力传感器检测到的液压泵的排出压力下降到预定的切换压力,则执行控制,以将压力油的流向朝向液压马达的相反方向 通过切换方向切换阀,将可变溢流阀的溢流压力设定提高到液压马达反方向旋转预定时间长度的反转压力设定值。
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公开(公告)号:US09683349B2
公开(公告)日:2017-06-20
申请号:US14914342
申请日:2014-12-08
Applicant: KCM Corporation
Inventor: Isamu Aoki , Keigo Kikuchi , Tetsuji Tanaka , Kentaro Oomae
CPC classification number: E02F9/2066 , F02D29/04 , F02D41/0097 , F02D41/021 , F02D41/0215 , F02D41/107 , F02D41/12 , F02D2200/101 , F02D2200/1012 , F02D2200/602 , F16H59/18 , F16H61/42 , F16H63/50
Abstract: A work vehicle equipped with an HST traveling drive device, includes: an operation quantity detector that detects an operation quantity representing an extent to which an accelerator pedal is operated; a rotation rate detector that detects an actual rotation rate at a prime mover; a requested rotation rate calculation unit that calculates a requested rotation rate for the prime mover based upon the operation quantity detected by the operation quantity detector; and a prime mover control unit that controls the actual rotation rate based upon the requested rotation rate calculated by the requested rotation rate calculation unit. When the requested rotation rate is higher than a predetermined value, the requested rotation rate calculation unit calculates a rate of acceleration for the requested rotation rate based upon a difference between the requested and the actual rotation rate detected by the rotation rate detector and calculates the requested rotation rate based upon the calculated rate of acceleration.
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公开(公告)号:US10066364B2
公开(公告)日:2018-09-04
申请号:US15508534
申请日:2015-10-23
Applicant: KCM Corporation
Inventor: Yasuo Yamazaki , Takashi Takeyama , Keigo Kikuchi , Akira Shimohira , Keisuke Kobayashi
IPC: B01D53/92 , E02F9/08 , F01N3/20 , F02B61/00 , F01P5/02 , F01N3/28 , B60K11/02 , B60K13/04 , E02F9/18 , E02F3/34
Abstract: A construction machine includes: a cover that covers an engine and a radiator; a radiator fan that is arranged at the rear of a vehicle body frame and discharges exhaust gas toward the rear of the vehicle body frame from the inner space of the cover; an injection device that injects a reducing agent into exhaust gas of the engine; a tank housing section that is arranged at one side of the vehicle body frame, includes an introduction section for introducing outside air, and houses a tank for storing the reducing agent injected by the injection device; and a connection section that is arranged in either the cover or the vehicle body frame and in the tank housing section, connects the inner space of the tank housing section and the inner space of the cover, and allows the outside air and the pipe to pass therethrough, the outside air having been introduced from the introduction section by the suction pressure of the radiator fan, the pipe supplying the reducing agent to the injection device.
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公开(公告)号:US09523315B2
公开(公告)日:2016-12-20
申请号:US14376286
申请日:2013-02-04
Applicant: KCM Corporation
Inventor: Koji Hyodo , Isamu Aoki , Tetsuji Tanaka , Keigo Kikuchi
CPC classification number: F02D31/001 , B60K31/00 , B60W2510/1005 , B60W2710/0644 , B60Y2400/426 , F02D29/02 , F02D31/007 , F02D41/0215 , F02D41/083 , F02D2200/101 , F02D2200/602 , F02D2400/12 , F16H63/50 , F16H2059/467
Abstract: An engine control device for work vehicle includes: a target rotation speed setting unit that sets a target rotation speed of an engine corresponding to an operation amount of an accelerator pedal; a rotation speed control unit that controls a rotation speed of the engine according to the target rotation speed; a travel driving unit that transmits rotation of the engine to wheels via a torque converter; a speed ratio detection unit that detects a speed ratio between an input shaft and an output shaft of the torque converter; and a target rotation speed correction unit that corrects the target rotation speed set by the target rotation speed setting unit so as to increase the target rotation speed based on the speed ratio when the operation amount of the accelerator pedal is smaller than a predetermined value and the speed ratio detected by the speed ratio detection unit is smaller than a predetermined value within a range which is equal to or greater than 0 and less than 1.
Abstract translation: 一种用于作业车辆的发动机控制装置,包括:目标转速设定单元,其设定与加速器踏板的操作量对应的发动机的目标转速; 转速控制单元,其根据目标转速来控制发动机的转速; 行驶驱动单元,其经由变矩器将发动机的旋转传递到车轮; 变速比检测单元,其检测所述变矩器的输入轴和输出轴之间的速比; 以及目标旋转速度校正单元,其校正由所述目标转速设定单元设定的目标转速,以便当所述加速踏板的操作量小于预定值时,基于所述速比来增加所述目标转速,并且 由速比检测单元检测的速比小于等于0且小于1的范围内的预定值。
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公开(公告)号:US09511759B2
公开(公告)日:2016-12-06
申请号:US14358582
申请日:2012-11-15
Applicant: KCM Corporation
Inventor: Koji Hyodo , Tetsuji Tanaka , Isamu Aoki , Keigo Kikuchi
IPC: B60W10/02 , B60W10/184 , B60W30/18
CPC classification number: B60W10/02 , B60W10/184 , B60W30/18109 , B60W2510/182 , B60W2540/10 , F16D48/06 , F16D2500/10412 , F16D2500/111 , F16D2500/1112 , F16D2500/30806 , F16D2500/3108 , F16D2500/31426 , F16D2500/3144 , F16D2500/70404 , F16D2500/70406 , F16D2500/7041 , F16D2500/70424
Abstract: A clutch control device for a work vehicle includes a determination unit that determines as to whether or not a clutch cutoff condition has been established based upon whether or not the accelerator pedal is being operated, as determined by the accelerator pedal operation determination unit, the vehicle speed of the work vehicle detected by the vehicle speed detection unit and the braking force of the work vehicle detected by the braking force detection unit; and a clutch control unit that controls engagement/release of a clutch so as to release the clutch when the determination unit determines that the clutch cutoff condition has been established.
Abstract translation: 一种用于作业车辆的离合器控制装置,包括:确定单元,其基于由加速器踏板操作确定单元确定的加速踏板是否正在操作来确定离合器切断条件是否已被建立,车辆 由车速检测单元检测到的作业车辆的速度和由制动力检测单元检测到的作业车辆的制动力; 以及离合器控制单元,其在确定单元确定离合器切断条件已经建立时,控制离合器的接合/释放,以释放离合器。
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公开(公告)号:US10392781B2
公开(公告)日:2019-08-27
申请号:US16288941
申请日:2019-02-28
Applicant: KCM Corporation
Inventor: Kohtaroh Uno , Shoroku Kawahara , Keigo Kikuchi , Koji Hyodo , Atsushi Shimazu
Abstract: To improve working efficiency in an eco mode when a power mode and the eco mode have been set in a wheel loader, the wheel loader is provided with a controller having an eco mode characteristic line, a power mode characteristic line, and a lifting operation characteristic line having a matching point C located between a matching point A between a working device operating engine torque characteristic line and the eco mode characteristic line and a matching point B between the working device operating engine torque characteristic line and the power mode characteristic line. The controller includes a control portion, which controls a HST pump in accordance with the lifting operation characteristic line when lifting operation of a lift arm is detected while the eco mode has been selected by a work mode selecting portion.
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