Electricity: motive power systems – Braking
Patent
1991-03-08
1992-12-08
Wysocki, A. Jonathan
Electricity: motive power systems
Braking
318375, H02P 300
Patent
active
051701057
ABSTRACT:
A method for determining operability of a dynamic braking system in an electrically propelled traction vehicle by cycling selected switching devices while the vehicle is at rest and measuring voltages and currents generated in response to operation of the switching devices. In one form, the dynamic braking system is operated to be connected to a power conversion system of the vehicle and the voltage developed at the braking system compared to the voltage coupled to the vehicle. Using prior knowledge of system resistances, calculated ideal values of voltage are compared to measured values to confirm proper system operation. Malfunctions of particular components are logically determined by ratios of measured to ideal values and by operation of selected ones of the switching devices.
REFERENCES:
patent: 3890551 (1975-06-01), Plunkett
patent: 3961688 (1976-06-01), Maynard
patent: 4092577 (1978-05-01), Markham
patent: 4093900 (1978-06-01), Plunkett
patent: 4352049 (1982-09-01), Franz, Jr.
patent: 4450388 (1984-05-01), Markham
patent: 4695941 (1987-09-01), Kumar
patent: 4743078 (1988-05-01), Dahnert
patent: 4761600 (1988-08-01), D'Atre et al.
patent: 4843297 (1989-06-01), Landino et al.
patent: 4902954 (1990-02-01), Oshima et al.
patent: 4904918 (1990-02-01), Bailey et al.
General Electric Company
Wysocki A. Jonathan
LandOfFree
Method for determining operability of an electrical dynamic brak does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for determining operability of an electrical dynamic brak, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for determining operability of an electrical dynamic brak will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-962793