Electricity: motive power systems – Braking – Automatic and/or with time-delay means
Patent
1983-08-31
1986-09-09
Shoop, Jr., William M.
Electricity: motive power systems
Braking
Automatic and/or with time-delay means
318345R, 318345E, 318139, 364426, H02P 506
Patent
active
046111530
ABSTRACT:
A microprocessor controlled propulsion motor control apparatus for a passenger vehicle is provided, including a chopper apparatus having an interrupt clock to determine the frequency cycle of operation of that chopper apparatus. It is required that this frequency stay within a predetermined tolerance and not vary outside that tolerance. The output pulses from the microprocessor clock are counted between successive signals from the chopper interrupt clock in response to each occurrence of a determined operation condition of the passenger vehicle to determine that the chopper interrupt frequency is satisfactory.
REFERENCES:
patent: 3950682 (1976-04-01), Dohanich, Jr.
patent: 4080555 (1978-03-01), Kawada et al.
patent: 4090116 (1978-05-01), Lippitt
patent: 4258300 (1981-03-01), Fromont
patent: 4284931 (1981-08-01), Ehret
patent: 4346434 (1982-08-01), Morinaga
patent: 4491904 (1985-01-01), Horiuchi et al.
patent: 4500820 (1985-02-01), Noto et al.
patent: 4504881 (1985-03-01), Wada et al.
patent: 4513381 (1985-04-01), Houser, Jr. et al.
Ip Shik Luen Paul
Possessky E. F.
Shoop Jr. William M.
Westinghouse Electric Corp.
LandOfFree
Chopper frequency determination apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Chopper frequency determination apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chopper frequency determination apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1016919