Self-propelled working machine and method for braking working machine of this type

A technology for working machines and mechanical brakes, which can be used in motor vehicles, electric braking systems, earthmovers/shovels, etc., and can solve problems such as complex control systems for electric motor braking power

Inactive Publication Date: 2016-07-13
LIEBHERR COMPONENTS BIBERACH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the distribution of the braking power of the electric motor requires a rather complex control system, taking into account the electrical energy available on the auxiliary device

Method used

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  • Self-propelled working machine and method for braking working machine of this type
  • Self-propelled working machine and method for braking working machine of this type

Examples

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Embodiment Construction

[0023] Such as figure 1 As shown, the self-propelled work machine 1 can be constructed, for example, in the form of an off-road truck and in particular a dump truck, which can include a running gear 2 and a plurality of wheels 12, which are distributed on several axles and carry the chassis or machine body of the work machine 1. shelf. However, it should be understood that the work machine can generally also be configured in other forms, such as other construction machines or mining machines with wheeled or chain-type running gear.

[0024] The drive system of the work machine 1 includes at least one electric drive 3 with at least one electric motor 4 , which can serve as a traction drive and can drive wheels 12 . Here, perhaps by means of a power split drive or a differential, one electric motor 4 can simultaneously drive several wheels 12 , for example wheels 12 of one axle. Alternatively, a single-wheel drive can also be provided, in which each driven wheel 12 is assigned...

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PUM

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Abstract

The invention relates to a self-propelled working machine, preferably in the form of a dumper truck or truck, having an electric drive comprising at least one electric motor (4), a generator (5) driven by a combustion engine (6) for supplying power to the electric drive, and a braking device (4, 11) for braking the working machine. Said braking device provides power-generating braking via the electric drive (4) and a feed-back of electrical engine braking power of the electric motor (4) to the generator (5), in order to support the engine braking power provided by the combustion engine (6). The invention also relates to a method for braking a working machine of this type. According to the invention, a braking control device is provided to automatically engage a mechanical brake (11) in accordance with the engine braking power fed back to the combustion engine and / or in accordance with the operating state of the combustion engine supplied with fed-back engine braking power.

Description

technical field [0001] The invention relates to a self-propelled work machine, preferably in the form of a dump truck or a truck, having an electric drive comprising at least one electric motor, a generator drivable by an internal combustion engine for supplying the electric drive and for braking the Braking device for a work machine, wherein the braking device provides for regenerative braking by means of an electric drive and includes a device for feeding back the electric motor braking power of the electric motor to the generator in order to assist the motor braking power on the internal combustion engine feedback device. The invention also relates to a braking method for such a work machine. Background technique [0002] For self-propelled work machines such as dump trucks, trucks or other self-propelled off-road vehicles for construction sites, mines, etc., electric drives with at least one electric motor have been used in recent years in order to utilize such electric...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K6/46B60W10/06B60W10/08B60W10/184B60W10/30B60W20/16B60W30/18B60L50/10
CPCB60K6/46B60W10/06B60W10/08B60W10/184B60W10/196B60W10/30B60W20/00B60W30/18127B60W30/18136E02F9/2083B60W2300/125B60W2300/17B60W2710/0627B60W2710/0644E02F3/7609B60W20/14E02F9/2075B60L50/10B60L53/00B60L58/10Y10S903/93Y10S903/947B60L53/50Y02T10/70Y02T10/7072Y02T90/14Y02T90/12Y02T10/62B60L7/10B60L7/18B60L2200/40B60K6/22B60K6/28B60K25/00B60W10/18B60W10/24B60Y2200/411B60Y2200/92B60Y2300/18125B60Y2300/43B60Y2300/60B60Y2300/91B60Y2400/604B60Y2400/61B60Y2400/81B60Y2400/87
Inventor S·N·霍夫曼B·E·里希特迈尔B·萨默S·杜伊利M·默克尔J·雷舍尔
Owner LIEBHERR COMPONENTS BIBERACH GMBH
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