Electricity: motive power systems – Plural diverse motor controls – Running-speed control
Patent
1998-11-13
2000-11-21
Sircus, Brian
Electricity: motive power systems
Plural diverse motor controls
Running-speed control
318274, 318436, 318369, 477186, 701 22, H02P 100
Patent
active
061507806
ABSTRACT:
Torque is distributed by calculating first and second torque commands using a requested torque and a ratio of speeds of first and second wheels and limiting them in accordance with respective torque command approved ranges and approved change rates; converting the limited torque commands to horsepower commands and limiting them in accordance with respective horsepower command approved ranges and approved change rates; and converting the limited horsepower commands to present torque commands. Maximum horsepower available is determined by using an engine speed to determine a nominal amount of available horsepower; applying a desired load status signal and an actual engine load status signal to a proportional-integral A regulator; and using the nominal amount of available horsepower and an output signal of the regulator to determine the maximum amount of available horsepower. Thermal protection is provided by obtaining component temperatures of a plurality of components; normalizing each component temperature; obtaining a normalized drive system temperature by determining a maximum value of the normalized component temperatures; and comparing the normalized drive system temperature with at least one predetermined maximum normalized temperature and using a result of the comparison to determine whether a corrective action is needed. A truck is started on an incline by determining whether its speed is below a predetermined speed limit, a service brake is applied, and an accelerator pedal is depressed, and, if so, permitting a propulsion torque to build without requiring an operator override action.
REFERENCES:
patent: 3787723 (1974-01-01), Magnuson et al.
patent: 3886417 (1975-05-01), Niwa
patent: 4056759 (1977-11-01), Mitsui et al.
patent: 4281276 (1981-07-01), Cutler et al.
patent: 4500818 (1985-02-01), Konrad et al.
patent: 4629043 (1986-12-01), Matsuo et al.
patent: 4667471 (1987-05-01), Fulmer et al.
patent: 4686872 (1987-08-01), Aoki et al.
patent: 4717207 (1988-01-01), Kubota et al.
patent: 4885698 (1989-12-01), Kawasaki
patent: 4896090 (1990-01-01), Balch et al.
patent: 5129496 (1992-07-01), Sigl et al.
patent: 5367461 (1994-11-01), Matsuda et al.
patent: 5376868 (1994-12-01), Toyoda et al.
patent: 5376869 (1994-12-01), Konrad
patent: 5388658 (1995-02-01), Ando et al.
patent: 5457633 (1995-10-01), Palmer et al.
patent: 5484044 (1996-01-01), Bursteinas et al.
patent: 5537011 (1996-07-01), Bachman et al.
patent: 5646510 (1997-07-01), Kumar
patent: 5707115 (1998-01-01), Bodie et al.
patent: 5708332 (1998-01-01), Bottger et al.
patent: 5841254 (1998-11-01), Balch et al.
patent: 5847534 (1998-12-01), Tanamachi et al.
patent: 5916062 (1999-06-01), Siepker
Beach Frederick Gaylord
Roman James Price
Young Henry Todd
Agosti Ann M.
General Electric Company
Risley David R.
Rowold Carl A.
Sircus Brian
LandOfFree
AC motorized wheel control system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with AC motorized wheel control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and AC motorized wheel control system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1260678