公开(公告)号：US10124660B2

公开(公告)日：2018-11-13

申请号：US15029095

申请日：2014-09-09

Applicant: Liebherr-Components Biberach GmbH

Inventor： Bernd Sommer ,  Christian Fehrensen ,  Markus Merkle

IPC: B60K6/22 ,  B60K6/44 ,  B60K6/46 ,  B60K28/12 ,  B60L3/00 ,  B60L3/04 ,  B60L11/02 ,  B60K28/00 ,  B60K28/10

Abstract: The present invention relates to a work machine, in particular to a construction machine and/or mining machine such as a crawler-type vehicle, a dump truck, mining device or the like, having an electric drive which comprises power electronics which have at least one transformer which has power connections covered by a cover for connecting power cables, wherein a manually actuable grounding device is provided for the all-pole grounding of the transformer and/or for short-circuiting an intermediate circuit connected thereto. The invention in this respect in particular also relates to such a transformer. In accordance with the invention, the manually actuable grounding device is coupled to a cover latch of the cover such that the cover can be unlatched by actuating the named grounding device.

公开(公告)号：US11548735B2

公开(公告)日：2023-01-10

申请号：US16573913

申请日：2019-09-17

Applicant: Liebherr-Components Biberach GmbH

Inventor： Michael Palberg ,  Markus Merkle

IPC: B65G43/00 ,  B65G23/22

Abstract: The present invention relates to a self-propelled material processing and/or handling system for processing and/or handling construction and/or raw materials, in particular in the form of a mobile crushing system, with at least one working unit, which is drivable, by an electric unit drive, with an electric motor, at least one electric travel drive with an electric motor, as well as a control device to control the electric motors of the unit and travel drives. According to the invention, the control device comprises a common frequency converter for the at least one travel drive and the at least one unit drive and provides various parameter sets for the common frequency converter so that the travel drive is actuatable by the frequency converter on the basis of a first parameter set and the unit drive is actuatable by the common frequency converter on the basis of a second parameter set.

公开(公告)号：US10112600B2

公开(公告)日：2018-10-30

申请号：US15707863

申请日：2017-09-18

Applicant: Liebherr-Components Biberach GmbH

Inventor： Markus Merkle ,  Juergen Resch ,  Sebastien Nicolas Hoffmann ,  Burkhard Emanuel Richthammer ,  Bernd Sommer ,  Stefan Duelli

IPC: B60W20/15 ,  B60W10/18 ,  B60W10/30 ,  B60L11/02 ,  B60L7/08 ,  B60L7/18 ,  B60L7/26 ,  B60K6/20 ,  B60W10/04

Abstract: Methods and systems are provided related to a self-propelling work machine in the form of a tracked vehicle having an electric drive, with a generator drivable by an internal combustion engine, an auxiliary unit connected to the engine, and a braking apparatus for braking the work machine. The braking apparatus provides regenerative braking by the electric drive and comprises a feedback apparatus for feeding back electrical motor braking power of the electric motor to the generator to apply the motor braking power on the engine and on the auxiliary unit. A controller automatically increases or decreases the electrical load of the auxiliary unit based on the electrical motor braking power fed back to the engine and/or based on an engine speed.

公开(公告)号：US09744872B2

公开(公告)日：2017-08-29

申请号：US15025213

申请日：2014-09-09

Applicant: Liebherr-Components Biberach GmbH

Inventor： Sebastien Nicolas Hoffmann ,  Burkhard Emanuel Richthammer ,  Bernd Sommer ,  Stefan Duelli ,  Markus Merkle ,  Juergen Resch

IPC: B60L7/10 ,  B60L11/18 ,  B60K6/46 ,  B60W10/06 ,  B60W10/08 ,  B60W10/184 ,  B60W10/196 ,  B60W10/30 ,  B60W20/00 ,  B60W30/18 ,  E02F9/20 ,  E02F3/76 ,  B60W20/14 ,  B60L7/18 ,  B60L11/02 ,  B60K6/22 ,  B60K25/00 ,  B60W10/18 ,  B60W10/24 ,  B60K6/28

CPC classification number: B60L11/1851 ,  B60K6/22 ,  B60K6/28 ,  B60K6/46 ,  B60K25/00 ,  B60L7/10 ,  B60L7/18 ,  B60L11/02 ,  B60L11/1809 ,  B60L2200/40 ,  B60W10/06 ,  B60W10/08 ,  B60W10/18 ,  B60W10/184 ,  B60W10/196 ,  B60W10/24 ,  B60W10/30 ,  B60W20/00 ,  B60W20/14 ,  B60W30/18127 ,  B60W30/18136 ,  B60W2300/125 ,  B60W2300/17 ,  B60W2710/0627 ,  B60W2710/0644 ,  B60Y2200/411 ,  B60Y2200/92 ,  B60Y2300/18125 ,  B60Y2300/43 ,  B60Y2300/60 ,  B60Y2300/91 ,  B60Y2400/604 ,  B60Y2400/61 ,  B60Y2400/81 ,  B60Y2400/87 ,  E02F3/7609 ,  E02F9/2075 ,  E02F9/2083 ,  Y02T10/6217 ,  Y02T10/6286 ,  Y10S903/93 ,  Y10S903/947

Abstract: The application describes a self-propelling work machine, in the form of a truck, having an electric drive comprising at least one electric motor, a generator drivable by an internal combustion engine for the power supply of the electric drive, and a braking apparatus for braking the work machine, wherein the braking apparatus provides a regenerative braking by the electric drive and a feedback apparatus for feeding back electrical motor braking power of the electric motor to the generator to apply the motor braking power on the internal combustion engine. The application further describes a method for braking the work machine. A braking control apparatus is provided for an automatic connection of a mechanical brake in dependence on the motor braking power fed back to the internal combustion engine and/or in dependence on the operating state of the internal combustion engine acted on by the fed back motor braking power.