Distributed control system for forklift
First Claim
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1. A distributed control system comprising:
- a plurality of controllers mounted on a forklift, said controllers for controlling corresponding functions of the forklift; and
a network for providing connections among said plurality of controllers, wherein;
a first controller of said plurality of controllers is configured to control a corresponding function of the forklift in response to an interface signal received from a second controller of said plurality of controllers; and
when the interface signal is not received from said second controller within a predetermined time period, said first controller controls the corresponding function of the forklift according to data stored thereon rather than controlling the corresponding function of the forklift in response to the interface signal.
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Abstract
A distributed control system including a plurality of controllers mounted on a forklift, and a network providing connections between or among the plurality of controllers within the forklift. A first controller out of the plurality of controllers is configured to control a function in response to an interfacing signal received from a second controller out of the plurality of controllers. When not receiving the interfacing signal during a predetermined period, the first controller controls the function using data stored in the first controller in place of the interfacing signal.
51 Citations
21 Claims
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1. A distributed control system comprising:
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a plurality of controllers mounted on a forklift, said controllers for controlling corresponding functions of the forklift; and a network for providing connections among said plurality of controllers, wherein; a first controller of said plurality of controllers is configured to control a corresponding function of the forklift in response to an interface signal received from a second controller of said plurality of controllers; and when the interface signal is not received from said second controller within a predetermined time period, said first controller controls the corresponding function of the forklift according to data stored thereon rather than controlling the corresponding function of the forklift in response to the interface signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A forklift comprising:
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a forklift body; and a distributed control system including; a plurality of controllers mounted on said forklift body, said controllers for controlling corresponding functions of said forklift; and a network for providing connections among said plurality of controllers, wherein; a first controller of said plurality of controllers is configured to control a corresponding function of said forklift in response to an interface signal received from a second controller of said plurality of controllers; and when the interface signal is not received from said second controller within a predetermined time period, said first controller controls the corresponding function of said forklift according to data stored thereon rather than controlling the corresponding function of said forklift in response to the interface signal.
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12. A method of operating a distributed control system within a forklift, the method comprising:
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transmitting an interface signal to a first controller of a plurality of controllers from a second controller of the plurality of controllers, the plurality of controllers being connected through a network and being configured to control corresponding functions of the forklift; first controlling a first function of the forklift using the first controller in response to the interface signal; and when the interface signal is not received from the second controller within a predetermined time period, second controlling the first function of the forklift using the first controller according to data stored thereon rather than controlling the corresponding function of the forklift in response to the interface signal. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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20. A computer program stored on a computer-readable storage medium, the computer program for operating a distributed control system including a plurality of controllers connected through a network, the computer program causing a computer to execute a method comprising:
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transmitting an interface signal to a first controller of the plurality of controllers from a second controller of the plurality of controllers; first controlling a first function of the forklift using the first controller in response to the interface signal; and when the interface signal is not received from the second controller within a predetermined time period, second controlling the first function of the forklift using the first controller according to data stored thereon rather than controlling the corresponding function of the forklift in response to the interface signal. - View Dependent Claims (21)
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Specification