Title:
WORKING VEHICLE
Document Type and Number:
WIPO Patent Application WO/2007/139169
Kind Code:
A1
Abstract:
A crawler type power shovel vehicle (1) operated by a hydraulic actuator (20), constructed
from an electric motor (31) for driving a hydraulic pump (32) for supplying hydraulic
oil to the hydraulic actuator (20), a battery (50) for supplying DC power, an inverter
(41) for operating the electric motor (31) by converting the DC power into AC power
and supplying it to the motor, a controller (40) for causing the inverter (41)
to control operation of the electric motor (31), and a voltage/current sensor
(42) for detecting the magnitude of a load current flowing from the battery (50)
into the inverter (41). The controller (40) stops the motor (31) when the magnitude
of the load current detected by the voltage/current sensor (42) continuously exceeds
a predetermined threshold for a predetermined time period.
More Like This:
| JP6851701 | Excavator |
| WO/2022/093494 | MODE SELECTION FOR AN OPERATOR CONTROL |
Inventors:
YOSHIOKA MASAO (JP)
Application Number:
PCT/JP2007/061033
Publication Date:
December 06, 2007
Filing Date:
May 24, 2007
Export Citation:
Assignee:
TAKEUCHI MFG (JP)
YOSHIOKA MASAO (JP)
YOSHIOKA MASAO (JP)
International Classes:
E02F9/20; B60L9/18; B60L11/18; H02H7/18; H02J7/00; H02P27/06
Foreign References:
| JP2004169464A | 2004-06-17 | |||
| JPH0739001A | 1995-02-07 | |||
| JP2001320807A | 2001-11-16 | |||
| JPH07231511A | 1995-08-29 | |||
| JPH1084628A | 1998-03-31 | |||
| JP2004225355A | 2004-08-12 |
Other References:
See also references of EP 2031135A4
Attorney, Agent or Firm:
OHNISHI, Shogo (HIGASHI-IKEBUKURO SS BUILDING 1F3-20-3, Higashi-Ikebukur, Toshima-ku Tokyo 13, JP)
Download PDF:
Previous Patent: CLEANING BODY AND CLEANING TOOL
Next Patent: EXHAUST EMISSION PURIFYING SYSTEM FOR V-TYPE EIGHT-CYLINDER INTERNAL COMBUSTION ENGINE
Next Patent: EXHAUST EMISSION PURIFYING SYSTEM FOR V-TYPE EIGHT-CYLINDER INTERNAL COMBUSTION ENGINE