A straddle carrier anti-overturning stability control system and method
A technology for stability control and straddle carriers, applied in control devices, vehicle components, transportation and packaging, etc., can solve problems such as easy overturning of straddle carriers
Active Publication Date: 2020-09-01
SHANGHAI ZHENHUA HEAVY IND
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Problems solved by technology
[0004] Aiming at the problem that the straddle carrier is easy to overturn in the prior art, the object of the present invention is to provide a straddle carrier anti-overturning stability control system and method
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[0049] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0050] In terminal equipment, there are many and complex factors affecting the driving stability of straddle carriers, such as the weight of the whole machine, the height of the center of gravity of the whole machine, the speed of the vehicle, the turning radius of the vehicle, the braking deceleration of the vehicle, wind speed, slope, etc. Therefore, the present invention fully considers and analyzes all factors that affect the stability of the straddle carrier, finds out the interrelationships therein, and establishes model calculations to realize the anti-overturning stability control of the straddle carrier.
[0051] Specifically, the present invention discloses a straddle carrier anti-overturning stability control system and method. The system mainly includes a turning stability module 1 , a braking stability module 2 and...
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The invention discloses a straddle carrier anti-overturning stability control system and method. The system comprises a turning stability module, a brake braking stability module and a control module,wherein the turning stability module is used for calculating a relation between turning speed and turning radius when the load and lifting height are fixed according to wind speed and a gradient condition, making a database, fitting a curve of the turning speed and the turning radius through a Lagrangian fitting function, and optimizing and filtering the curve through the phenomenon of Runge; thebrake braking stability module is used for braking when the load and lifting height are at the highest point and running speed is at full speed according to the wind speed and the gradient condition,and judging whether a vehicle is stable or not by controlling the deceleration braking time and combining considering the wheel pressure state of each wheel of the vehicle; and the control module isused for comparing real-time parameters of the turning stability module and the brake braking stability module, and finally controlling by combining parameters of the turning stability module and parameters of the brake braking stability module. According to the straddle carrier anti-overturning stability control system, the vehicle speed can be ensured to be in a safety zone during the turning process, and the braking safety of a straddle carrier is ensured.
Description
technical field [0001] The present invention relates to a vehicle anti-overturning system and method, more specifically, to a straddle carrier anti-overturning stability control system and method. Background technique [0002] The container straddle carrier is the main type of container handling equipment, and usually undertakes the horizontal transportation from the front of the wharf to the storage yard and the container stacking work in the storage yard. Because the container straddle carrier has the characteristics of flexible maneuverability, high efficiency, good stability, and low wheel pressure, it has been widely used. The container straddle carrier operation is very beneficial to improve the loading and unloading efficiency of the terminal front equipment. Since the appearance of the container straddle carrier in the 1960s, after decades of development, it has become the key equipment of the container terminal and the yard, just like the tire-type container gantry...
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IPC IPC(8): B60W30/04B60W30/045
CPCB60W30/04B60W30/045B60W2530/10
Inventor 吴治礼邵诚佳
Owner SHANGHAI ZHENHUA HEAVY IND