Fuel saving control device for working machine and fuel saving control method for working machine

A technology for working vehicles and working devices, which is applied to control devices, lifting devices, vehicle components, etc., and can solve problems such as poor energy recovery and regeneration efficiency, energy conversion loss, and hindrance to fuel-saving effects
CN102365227BInactive Publication Date: 2014-07-30KOMATSU LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
KOMATSU LTD
Publication Date
2014-07-30
Estimated Expiration
Not applicable · inactive patent

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Abstract

An object of the present invention is to provide a fuel-saving control device for a work vehicle and a fuel-saving control method for a work vehicle, which can improve energy recovery / regeneration efficiency and further promote fuel saving. The fuel-saving control device of the work vehicle has: a vehicle speed detector (11), which detects whether it is in the process of driving; an accelerator operation detector (16), which detects whether it is in a state where the accelerator operation part is not operated; 23), which detects whether there is an instruction to lift the arm for loading, unloading and transporting operations; the controller (8), when the vehicle speed detector (11) detects that it is in the process of driving, and the accelerator operation detector (16) detects that it is in the The controller (8) performs control to increase the speed reduction ratio of the travel transmission (4) when the accelerator operating member is not operated and the arm operating lever (23) detects an arm raising operation instruction.
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Description

technical field

[0001] The present invention relates to a fuel-saving control device for a work vehicle and a fuel-saving control method for a work vehicle, which can realize fuel-saving of work vehicles such as wheel loaders and forklifts that perform loading, unloading, and transportation operations. Background technique

[0002] Conventionally, V-shaped loading has been described as an example of a typical operation in which a wheel loader is often used. V-shaped loading refers to an operation in which loading is repeatedly carried out so as to draw a V-shaped trajectory with respect to a pile of sand or gravel and a dump truck. In this case, since the wheel loader repeats forward / backward and repeated excavation / dumping, there is not only the problem of increased fuel consumption during acceleration, but also the problem of brake heating due to increased brake load during deceleration ( overheating), and the maintenance costs are also high due to brake wear.

[0003] T...

Claims

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