公开(公告)号：US20160368472A1

公开(公告)日：2016-12-22

申请号：US15122240

申请日：2015-04-09

Applicant: KCM CORPORATION

Inventor： Tomonori TAKADA ,  Takashi IKIMI ,  Kazuya SEKINE ,  Masaki HIGURASHI

IPC: B60W20/10 ,  E02F9/20 ,  B60K25/02 ,  E02F3/34 ,  H02P7/18 ,  B60K6/50

CPC classification number: B60W20/10 ,  B60K6/46 ,  B60K6/50 ,  B60K25/02 ,  B60K2025/026 ,  B60W2300/17 ,  B60W2510/081 ,  B60W2510/083 ,  B60W2710/083 ,  B60W2710/086 ,  B60Y2200/92 ,  B60Y2300/18 ,  B60Y2300/60 ,  B60Y2400/87 ,  E02F3/34 ,  E02F3/3417 ,  E02F9/2075 ,  E02F9/2079 ,  E02F9/2091 ,  E02F9/2095 ,  H02M3/155 ,  H02M7/5387 ,  H02M2001/007 ,  H02P7/18 ,  Y02T10/6217 ,  Y10S903/915

Abstract: A hybrid work machine includes: an engine configured to drive a hydraulic pump as a hydraulic source of a hydraulic actuator; an engine-assist motor generator attached to the engine; an electric motor for use in a part of a driving system of the work machine; an electricity storage device configured to store generated power of the motor generator; a power converter disposed between the electric motor and DC buses; and a buck-boost converter disposed between the DC buses and the electricity storage device, and configured to perform power transfer between the DC buses and the electricity storage device by raising and lowering a voltage of the DC buses, the hybrid work machine, further comprises: a controller configured to temporarily raise the voltage of the DC buses when a torque required for the electric motor exceeds a torque outputtable at the voltage of the DC buses connected to the power converter.

Abstract translation: 混合动力作业机械包括：发动机，被配置为驱动液压泵作为液压致动器的液压源; 附接在发动机上的发动机辅助电动发电机; 用于工作机械的驱动系统的一部分的电动机; 配置为存储所述电动发电机的发电电力的蓄电装置; 设置在电动机和直流母线之间的功率转换器; 以及设置在所述直流母线和所述蓄电装置之间的降压 - 升压转换器，并且被配置为通过升高和降低所述直流母线的电压来在所述直流母线与所述蓄电装置之间进行功率传递，所述混合动力工作机还包括 ：当所述电动机所需的转矩超过在与所述功率转换器连接的所述直流母线的电压时输出的转矩时，控制器被配置为暂时升高所述直流总线的电压。

公开(公告)号：US20180079404A1

公开(公告)日：2018-03-22

申请号：US15560936

申请日：2015-12-18

Applicant: KCM Corporation

Inventor： Satoru KANEKO ,  Kazuo ISHIDA ,  Noritaka ITO ,  Takashi IKIMI

IPC: B60W20/13 ,  B60K6/22 ,  E02F9/20

CPC classification number: B60W20/13 ,  B60K6/22 ,  B60K6/46 ,  B60L11/14 ,  B60L11/18 ,  B60W10/08 ,  B60W10/30 ,  B60W20/00 ,  B60W2300/17 ,  B60Y2200/412 ,  B60Y2200/92 ,  E02F3/422 ,  E02F9/20 ,  E02F9/2075 ,  Y02T10/6217 ,  Y02T10/7005 ,  Y02T10/7077 ,  Y10S903/904 ,  Y10S903/93

Abstract: The hybrid type work vehicle includes: a traveling unit having a traveling electric motor; a hydraulic work unit having a hydraulic pump; and a control apparatus having an operation determination section configured to input the operation amount of an operation lever device, the depression amount of an accelerator pedal and a brake pedal, and a vehicle speed and to determine the current operation state of the vehicle, and a power computation section configured to input the output value of an engine and the output value of a power storage device and to calculate and control the power of the traveling unit and the power of the hydraulic work unit. When the operation determination section determines that the current vehicle operation state is that of an excavation work which is a combined operation of the traveling unit and the hydraulic work unit, the power computation section calculates and controls the output power of the traveling unit and the output power of the hydraulic work unit such that the sum total of the output value of the engine and the output value of the power storage device is distributed in a preset ratio.