Rollover resistant control method of forklift

A control method and anti-rollover technology, which is applied to vehicle components, elastic suspensions, suspensions, etc., can solve problems such as misalignment of forklift support planes and driving planes, potential safety hazards for operators and cargo, and lateral instability. Improve the anti-rollover ability, improve active safety, and improve the effect of body posture

Active Publication Date: 2018-01-12
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the hinge connection method of the forklift improves the flexibility of the forklift operation and the stability of the vehicle body when passing through concave and convex roads, but due to the inclination angle of the support plane, the frame swings, so that the support plane of the forklift does not coincide with the driving plane. When turning, it is prone to lateral instability or even rollover due to the influence of centrifugal force, causing potential safety hazards for operators and cargo

Method used

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  • Rollover resistant control method of forklift

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Embodiment

[0065] Embodiment: the forklift anti-rollover control method of the present invention is applied to a certain type of 2.5 ton counterbalanced forklift. The parameters of the counterbalanced forklift are as follows:

[0066] Product of inertia I of the vehicle around the XZ axis x =18313kg.m 2 ; tire cornering stiffness K α =135kN.m -1 ; Vehicle mass m = 4639kg; Frame mass m 1 =1160kg; height of center of mass h 1 =702mm; front wheel track B 1 =1000mm; rear wheel track B 2 = 970mm; front and rear wheelbase L = 1700mm; horizontal distance a from the center of mass to the front axle = 212mm; horizontal distance from the center of mass to the rear axle b = 1488mm; height of the hinge axis of the steering axle h x =275mm;

[0067] Install the gyroscope at the center of mass of the forklift, and collect the forklift roll angle φ, roll angular acceleration φ″, yaw rate ω, and longitudinal acceleration a y and the velocity of the center of mass, and calculate the component v o...

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PUM

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Abstract

The invention discloses a rollover resistant control method of a forklift. The rollover resistant control method comprises the steps that the forklift is subjected to altitude grading by calculating the transverse load transfer ratio of the forklift and according to the safety degree, when the forklift is in a stable state, free control is conducted; when the forklift is in a first level rolloverstate, first level rollover resistant control is conducted; and when the forklift is in a second level rollover state, second level rollover resistant control is conducted so as to improve the rollover resistant capacity of the forklift. The rollover resistant control method of the forklift can conduct stable control over the forklift, so that the forklift is prevented from rollovering in the carrying and working process, and accordingly the transverse stability and the active safety of the forklift are improved.

Description

technical field [0001] The invention relates to the field of a forklift stability control method, in particular to a forklift prevention rollover control method. Background technique [0002] The internal combustion counterbalanced forklift is the most widely used type of forklift. With the rapid development of the market economy, the application fields of forklifts are becoming more and more extensive, and the working environment is becoming more and more complex. The safety of forklifts is also raised more and more. high demands. Due to the characteristics of the structure of the internal combustion counterbalanced forklift, its lateral stability is poor; because the forklift is a material handling machine, the position of its center of gravity will change with the different cargo and working conditions during operation or operation. If it is not operated properly, It is prone to lateral instability and rollover accidents. [0003] The front part of the forklift is equip...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60G17/016B60G17/019
Inventor 夏光谢海高飞张洋杨猛滑杨莹郭东云闫瑞琦郑友
Owner HEFEI UNIV OF TECH
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