公开(公告)号：US20180086345A1

公开(公告)日：2018-03-29

申请号：US15450348

申请日：2017-03-06

Applicant: KCM Corporation

Inventor： Atsushi NAKAMURA ,  Keisuke NAITOU

IPC: B60W30/194 ,  F16H61/14 ,  B60W10/02 ,  B60W10/06 ,  F16H45/02 ,  E02F3/34 ,  E02F9/22

CPC classification number: B60W30/194 ,  B60W10/026 ,  B60W10/06 ,  B60W2510/0676 ,  B60W2510/107 ,  B60W2550/12 ,  B60W2710/024 ,  B60Y2200/415 ,  E02F3/34 ,  E02F9/22 ,  E02F9/2217 ,  E02F9/2225 ,  F16H45/02 ,  F16H59/72 ,  F16H61/143 ,  F16H2059/366 ,  F16H2312/20

Abstract: A work vehicle has a hydraulic source; a control valve that controls a flow of the hydraulic oil discharged from the hydraulic source; and an engine starting device for starting an engine, in which a control device has: a low-temperature state determination unit that determines whether a temperature state of a working fluid of a torque converter is a low-temperature state; and a clutch control unit that when it is determined by the low-temperature state determination unit that the temperature state of the working fluid is not the low-temperature state, controls the control valve in order to switch a lock-up clutch to a non-engagement state, and when it is determined by the low-temperature state determination unit that the temperature state of the working fluid is the low-temperature state, controls the control valve in order to switch the lock-up clutch to a engagement state.

公开(公告)号：US20180265086A1

公开(公告)日：2018-09-20

申请号：US15762920

申请日：2016-09-23

Applicant: KCM Corporation

Inventor： Atsushi NAKAMURA ,  Mototaka KATAYAMA ,  Koji SHIMAZAKI

IPC: B60W30/18 ,  B60W10/198 ,  B60W10/30 ,  B60K11/06 ,  B60W10/24 ,  B60W10/02 ,  E02F9/08 ,  E02F9/20 ,  E02F9/22 ,  F02B37/24 ,  F02D9/06 ,  F02D29/04 ,  F01P5/04 ,  F16H59/66 ,  F16H61/14 ,  F16H61/21

CPC classification number: B60W30/18009 ,  B60K11/06 ,  B60W10/02 ,  B60W10/023 ,  B60W10/026 ,  B60W10/04 ,  B60W10/06 ,  B60W10/198 ,  B60W10/24 ,  B60W10/30 ,  B60W30/18136 ,  B60W30/1884 ,  B60W2300/17 ,  B60W2510/0638 ,  B60W2510/104 ,  B60W2520/10 ,  B60W2710/024 ,  B60W2710/0638 ,  B60W2710/18 ,  B60W2710/30 ,  B60W2710/305 ,  B60Y2200/415 ,  B60Y2300/181 ,  E02F3/283 ,  E02F9/0883 ,  E02F9/2083 ,  E02F9/2217 ,  E02F9/2253 ,  F01P5/04 ,  F02B37/12 ,  F02B37/24 ,  F02D9/06 ,  F02D29/00 ,  F02D29/04 ,  F02D45/00 ,  F02D2200/501 ,  F02D2200/602 ,  F02D2200/702 ,  F16H59/66 ,  F16H61/14 ,  F16H61/21 ,  F16H2061/216 ,  Y02T10/144

Abstract: A construction machine includes: an engine driving at least one hydraulic pump configured to supply operating oil to a hydraulic actuator; an exhaust adjustment mechanism adjusting a flow rate of exhaust from the engine; and a control device controlling the exhaust adjustment mechanism. The control device determines whether or not a first downhill traveling condition and/or a second downhill traveling condition are/is satisfied. When at least one of the first downhill traveling condition and the second downhill traveling condition is satisfied, the control device controls the exhaust adjustment mechanism such that the exhaust adjustment mechanism executes exhaust brake.

公开(公告)号：US20190169817A1

公开(公告)日：2019-06-06

申请号：US16094751

申请日：2016-09-28

Applicant: KCM Corporation

Inventor： Atsushi NAKAMURA ,  Koji SHIMAZAKI

IPC: E02F3/42 ,  E02F3/28 ,  E02F9/22 ,  F15B11/042

Abstract: A work vehicle includes: a main hydraulic pump that supplies pressure oil to a hydraulic cylinder; an accessory pump that supplies pressure oil to an auxiliary machine; and a confluence switching valve that merges pressure oil of the accessory pump with pressure oil of the main hydraulic pump. The work vehicle is provided with a control device that, in case atmospheric pressure or air density of outside air is lower than a predetermined value, executes confluence limitation control of reducing a confluence flow rate at the confluence switching valve compared to the time in case the atmospheric pressure or the air density of the outside air is higher than the predetermined value, and canceling the confluence limitation control in case rotation speed of an engine becomes higher compared to a predetermined rotation speed value during the confluence limitation control, and the rotation speed value is higher as the atmospheric pressure or the air density of the outside air is lower.