Electricity: motor control systems – Specific feedback condition or device – Thermal condition
Patent
1990-07-27
1992-06-16
Shoop, Jr., William M.
Electricity: motor control systems
Specific feedback condition or device
Thermal condition
388910, 388815, 361 24, 361 27, 361106, 318473, H02H 524
Patent
active
051230810
ABSTRACT:
The present invention features a system and method for preventing overheating of a motor and/or power amplifier of a material handling vehicle by controlling the performance of the vehicle as a function of motor and/or power amplifier temperature. Temperature sensors are connected to the motor and power amplifier for determining their operating temperatures. A controller is connected to each temperature sensor and to the motor for controlling acceleration of the motor as a function of either or both temperatures, so that both the motor and the power amplifier will not overheat. In controlling acceleration of the motor, the invention provides a mechanism for changing acceleration by discrete steps or continuously according to a performance curve which may be linear or otherwise.
REFERENCES:
patent: 4008426 (1977-02-01), Ogura
patent: 4131832 (1978-12-01), Cavil et al.
patent: 4506199 (1985-03-01), Asche
patent: 4626753 (1986-12-01), Letterman
patent: 4675777 (1987-06-01), Watrous
patent: 4727450 (1988-02-01), Fachinetti et al.
patent: 4849677 (1989-07-01), Kruger
Avitan, Issac and Skorman, Victor, Mathematical Modeling and Computer Simulation of a Seperately Excited dc Motor with Independent Armature/Field Control, Dec. 1990, 488.
Avitan Issac
Bachman Michael S.
Kellogg David L.
Simmons, Jr. James M.
Martin David
Raymond Corporation
Shoop Jr. William M.
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