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A power distribution control method and device for a mobile work vehicle

A technology for mobile operations and working devices, which is applied in the field of power control of mobile operation vehicles, and can solve problems such as engine stalling

Active Publication Date: 2019-03-29
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing anti-stall control method is prone to the situation that the one that reduces the required power completely stops, while the load on the other side is extremely large, causing the engine to stall

Method used

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  • A power distribution control method and device for a mobile work vehicle
  • A power distribution control method and device for a mobile work vehicle
  • A power distribution control method and device for a mobile work vehicle

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Embodiment Construction

[0073] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0074] Hydraulic travel system: a hydrostatic drive system consisting of a hydraulic pump and a hydraulic motor in a closed circuit. The hydraulic pump absorbs the power of the engine and converts it into hydraulic energy, and the hydraulic motor converts the hydraulic energy into kinetic energy and drives the vehicle or crawler running transmission system through the transmission device.

[0075] Hydraulic working device: including the hydraulic part composed...

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Abstract

The invention provides a power allocation control method and device of mobile working vehicles. A PID controller (anti-flameout controller) is separately configured for a walking system and a working device so as to realize the anti-flameout control during single work of the walking system or the working device, and the power allocation during simultaneous work of the walking system and the working device. The simultaneous work of the walking system and the working device can be guaranteed, however, when the output power of an engine is insufficient, the required power of the walking system and the working device is reduced, but the two parts are ensured to still work instead of completely stopping one of the two parts, thereby avoiding the situation that the engine is flamed out when one part is completely stopped and the load of the other part is too large.

Description

technical field [0001] The present invention relates to the field of control of mobile work vehicles, more specifically, to a power control method and device for mobile work vehicles. Background technique [0002] Mobile work vehicles include excavators, loaders, etc. The mobile operating vehicle has the situation that the traveling system and the working device work at the same time. At this time, it is necessary to ensure that the output power of the engine meets the required power of the working device and the traveling system without turning off the engine. The existing anti-flame control method is to reduce the required power of one of the traveling system and the working device when the sum of the required power of the traveling system and the working device is detected to be greater than the maximum output power of the engine. However, in the existing anti-stall control method, it is easy to occur that the one that reduces the required power stops completely, while t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W30/188B60W10/06
CPCB60W10/06B60W30/188B60W30/1888B60W2300/44B60W2510/0638B60W2710/0616
Inventor 赵金光李佳宋亚召陈岩王高峰李苑玮
Owner WEICHAI POWER CO LTD
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