公开(公告)号：EP2918435A4

公开(公告)日：2016-08-03

申请号：EP13853611

申请日：2013-11-06

申请人： HITACHI CONSTRUCTION MACHINERY

发明人： KANEKO SATORU ,  IKIMI TAKASHI ,  ITOU NORITAKA ,  MORIKI HIDEKAZU ,  TAKEUCHI KEN

IPC分类号： B60K6/46 ,  B60L3/00 ,  B60L11/00 ,  B60L11/12 ,  B60L11/14 ,  B60L11/18 ,  B60W10/08 ,  B60W10/26 ,  B60W10/30 ,  B60W20/00 ,  E02F9/20 ,  E02F9/22

CPC分类号： E02F9/2091 ,  B60K6/46 ,  B60L3/0046 ,  B60L11/005 ,  B60L11/12 ,  B60L11/123 ,  B60L11/14 ,  B60L11/1861 ,  B60L2210/10 ,  B60L2210/40 ,  B60L2240/12 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/441 ,  B60L2240/443 ,  B60L2250/26 ,  B60L2260/28 ,  B60W10/08 ,  B60W10/26 ,  B60W10/30 ,  B60W20/00 ,  B60W2510/305 ,  B60W2710/244 ,  E02F9/2079 ,  E02F9/2221 ,  Y02T10/6217 ,  Y02T10/642 ,  Y02T10/7005 ,  Y02T10/7022 ,  Y02T10/7044 ,  Y02T10/705 ,  Y02T10/7077 ,  Y02T10/7216 ,  Y02T10/7241 ,  Y02T10/92 ,  Y10S903/93

摘要： There are provided a work vehicle comprising a motor generator (6) driven by an engine, a hydraulic pump (4) driven by at least either of the motor generator and the engine, a work device (50) driven by hydraulic fluid from the hydraulic pump, a electric traction motor (9) driving wheels (61), an electrical storage device (11) connected to the motor generator and to the electric traction motor and charged electrically on the basis of a target SOC; and a control device (200) varying the target SOC for the electrical storage device (11) on the basis of total demanded power (Pf+Prun) of the hydraulic pump and the electric traction motor.

公开(公告)号：EP2857600A4

公开(公告)日：2016-03-16

申请号：EP13800885

申请日：2013-06-03

申请人： HITACHI CONSTRUCTION MACHINERY

发明人： MORIKI HIDEKAZU ,  KANEKO SATORU ,  ITOU NORITAKA ,  ISHIDA KAZUO ,  KOTAKA TOSHIO ,  SEKINO SATOSHI ,  KIKUCHI TORU ,  HIGURASHI MASAKI

IPC分类号： E02F9/20 ,  B60K6/46 ,  B60W10/30 ,  B60W30/18 ,  E02F3/43 ,  E02F9/22

CPC分类号： E02F9/2062 ,  B60K6/46 ,  B60W10/30 ,  B60W30/18172 ,  B60W2510/30 ,  E02F3/283 ,  E02F3/431 ,  E02F9/2066 ,  E02F9/22 ,  E02F9/2253 ,  E02F9/2296 ,  E02F9/268 ,  F15B2211/864 ,  F15B2211/875 ,  Y02T10/6217

摘要： This invention includes a hydraulic pump (9), a working implement (107) having a lift cylinder (13) driven by a hydraulic fluid supplied from the hydraulic pump (9), an operating device (104) for operating the working implement (107), a traveling motor (7) for driving wheels, and a main controller (100). When the lift cylinder (13) fails to operate despite an extending instruction being imparted to the lift cylinder (13) via the operating device (104), the main controller (100) reduces a limit value for an increase rate of a torque required in the traveling motor (7) to a value smaller than that applied when the lift cylinder (13) operates. With this configuration, occurrence of wheel slip during lifting of an object to be carried can be reduced.