System And Method For Dynamically Maintaining The Stability Of A Material Handling Vehicle Having A Vertical Lift
First Claim
1. ) A method of maintaining a dynamic stability of a material handling vehicle having a vertical lift, the method comprising:
- a) continuously calculating dynamic center-of-gravity parameters for the vehicle over a time interval during which the vehicle is moving, wherein a vertical position of the dynamic center-of-gravity is dependent on a position of the vertical lift;
b) continuously calculating wheel loads based on the calculated dynamic center-of-gravity parameters; and
c) adjusting vehicle operating parameters based on the calculated wheel loads and center-of-gravity parameters to maintain vehicle dynamic stability.
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Abstract
A system and method that maintains the dynamic stability of a material handling vehicle having a vertical lift. The method allows static vehicle properties, such as vehicle weight, wheelbase length, and wheel configuration, and dynamic operating parameters, such as vehicle velocity, floor grade, lift position, and load weight, to be accounted for when maintaining the dynamic stability of a moving material handling vehicle. The method may include calculating and predicting center-of-gravity parameters, wheel loads, and projected force vectors multiple times a second and adjusting vehicle operating parameters in response thereto to maintain vehicle stability.
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Citations
16 Claims
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1. ) A method of maintaining a dynamic stability of a material handling vehicle having a vertical lift, the method comprising:
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a) continuously calculating dynamic center-of-gravity parameters for the vehicle over a time interval during which the vehicle is moving, wherein a vertical position of the dynamic center-of-gravity is dependent on a position of the vertical lift; b) continuously calculating wheel loads based on the calculated dynamic center-of-gravity parameters; and c) adjusting vehicle operating parameters based on the calculated wheel loads and center-of-gravity parameters to maintain vehicle dynamic stability. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification