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Engine assembly for driving a motor vehicle

A technology for transmission lines and vehicles, which is applied in transmissions, fluid transmissions, transmission control, etc., can solve problems such as adverse effects of manufacturing costs

Inactive Publication Date: 2006-05-03
ZF FRIEDRICHSHAFEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In most driving situations, however, diesel engines are oversized in their dimensions, which adversely affects the manufacturing costs of the vehicle

Method used

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  • Engine assembly for driving a motor vehicle

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Experimental program
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Effect test

Embodiment Construction

[0010] The single figure shows an engine 1 , the output shaft of which drives a pump impeller 3 of a hydrodynamic torque converter 4 via a primary clutch 2 . The engine 1 is likewise connected to a hydraulic pump 5 of the working hydraulic system. The hydraulic pump 5 can be connected to the transmission of the primary clutch 2 . The hydraulic pump 5 is preferably a load-sensing pump (Load-Sensing-pump). The delivery volume of the hydraulic pump 5 is delivered via a valve 6 to a consumer 7 such as a bucket of a wheel loader, for example. The electronic control unit 8 processes signals from the brake pedal, the travel speed pedal 10, the control lever 11 of the working hydraulic system, the load state of the engine 1 and its rotational speed and the rotational speed of the pump impeller 3 and the input rotational speed in the gearbox 12 . Depending on these parameters, the electronic control unit controls the delivery rate at a larger hydraulic pump 5 whose delivery rate can...

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Abstract

In order to reduce the structural volume of the engine (1) used to drive the mobile vehicle, especially the transmission line of such a working machine as a wheel loader, the hydraulic pump (5) of the engine (1) and the working hydraulic system An infinitely adjustable gearbox is arranged between them, which can be adjusted depending on the load state of the engine (1).

Description

technical field [0001] The invention relates to a transmission line for driving a moving vehicle of the type defined in detail in the preamble of claim 1 . Background technique [0002] Drive trains according to the classification are preferably used in power machines such as wheel loaders or road graders, in which the engine, in particular a diesel engine, is connected to the pump impeller of a hydrodynamic torque converter, the turbine shaft of which forms the An engine with a switchable gearbox connected to the drive wheels. The auxiliary drive of the at least one hydraulic pump for the drive, in particular of the working hydraulic system of the power machine, is likewise connected to the engine and preferably to the drive shaft of the hydrodynamic torque converter. The engine and hydrodynamic torque converter are designed so that the diesel engine is at rated speed at the braking point, that is, at full load and at a standstill when the working hydraulic system is not o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H59/00E02F9/22F04B17/00F04B49/20F04C15/00
CPCE02F9/2253E02F9/2296F04B17/00F04B49/20F04B2201/1201F04B2201/124F04B2203/0603F04B2203/0604F16H2045/002B60W30/00F16H61/40F04C15/00E02F9/22
Inventor 于尔根·莱格纳沃尔夫冈·雷布霍尔茨
Owner ZF FRIEDRICHSHAFEN AG
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