Title:
How to operate mining vehicles and mining vehicles
Document Type and Number:
Japanese Patent JP6139347
Kind Code:
B2
Abstract:
The invention relates to a mining vehicle and to a method of operating a mining vehicle. The mining vehicle comprises a three or more phase electric drive motor. A nominal power of the drive motor is determined on the basis of a certain drive speed and load, whereby the drive motor has a nominal torque at a certain rotating speed. The drive motor is connected to a traction wheel of the mining vehicle using a fixed gear ratio. The rotation speed of the drive motor is controlled by using a motor controller. That drive motor is operated in a delta connection on the certain drive speed and when necessary the torque of the drive motor at a drive speed lower than the certain drive speed is increased by operating the drive motor in a star connection and simultaneously temporarily overloading the drive motor.
Inventors:
Mikko Kobo
Samurai kouhia
Samurai kouhia
Application Number:
JP2013186302A
Publication Date:
May 31, 2017
Filing Date:
September 09, 2013
Export Citation:
Assignee:
Sandvik Mining and Construction Oy
International Classes:
B60L9/16
Domestic Patent References:
| JP4355697A | ||||
| JP2012533271A |
Attorney, Agent or Firm:
Atsushi Aoki
Tetsuro Shimada
Shinji Mitsuhashi
Yasushi Ohashi
Kentaro Ito
Kazuo Maejima
Tetsuro Shimada
Shinji Mitsuhashi
Yasushi Ohashi
Kentaro Ito
Kazuo Maejima
Previous Patent: Outer mall conclusion structure
Next Patent: IMAGE PROCESSING METHOD AND IMAGE PROCESSOR
Next Patent: IMAGE PROCESSING METHOD AND IMAGE PROCESSOR