AC motorized wheel control system

Data processing: measuring – calibrating – or testing – Testing system – Of mechanical system

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

702 41, 702182, 318 52, 318800, 318434, 7386228, H02P 154

Patent

active

060412852

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 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: 4885698 (1989-12-01), Kawasaki
patent: 4896090 (1990-01-01), Balch et al.
patent: 5376868 (1994-12-01), Toyoda et al.
patent: 5388658 (1995-02-01), Ando et al.
patent: 5457633 (1995-10-01), Palmer et al.
patent: 5537011 (1996-07-01), Bachman et al.
patent: 5646510 (1997-07-01), Kumar
patent: 5708332 (1998-01-01), Bottger et al.
patent: 5841254 (1998-11-01), Balch et al.
patent: 5847534 (1998-12-01), Tanamachi et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

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.

Rate now

     

Profile ID: LFUS-PAI-O-737921

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.