Electricity: motive power systems – Plural – diverse or diversely controlled electric motors – Plural – diverse or diversely controlled sources of armature...
Patent
1995-11-03
1997-09-23
Martin, David S.
Electricity: motive power systems
Plural, diverse or diversely controlled electric motors
Plural, diverse or diversely controlled sources of armature...
318110, 318112, H02P 154
Patent
active
056708513
ABSTRACT:
An electric vehicle control system for controlling a plurality of main motors for driving an electric vehicle and an auxiliary circuit. The control system includes a first circuit breaker, and a first main power converter for receiving a DC power for converting the DC power into a first AC power to supply the first AC power to the first main motor. The control system further includes a second circuit breaker, and an auxiliary power converter for receiving the DC power for converting the DC power into a second AC power to supply the second AC power to the auxiliary circuit. The control system also includes a second main power converter for receiving the DC power for converting the DC power into a third AC power to supply the third AC power to one of the second main motor and the auxiliary circuit, respectively. The control system further includes a switch device for switching the second main power converter such that when the auxiliary power converter is normal the second main converter is connected to the second main motor to supply the third AC power, and when the auxiliary power converter is broken down the input side of the second main power converter is connected to the second circuit breaker and the output side of the second main power converter is connected to the auxiliary circuit to supply the third AC power.
REFERENCES:
patent: 4032824 (1977-06-01), Elger
patent: 4420713 (1983-12-01), Chandran et al.
patent: 4454455 (1984-06-01), Matulevich
patent: 5473225 (1995-12-01), Miyazaki
Patent Abstracts of Japan, vol. 15, No. 279 (M-1136), Jul. 16, 1991, JP-A-03-098401, Apr. 24, 1991.
Patent Abstracts of Japan, vol. 15, No. 244 (M-1127), Jun. 24, 1991, JP-A-03-078401, Apr. 3, 1991.
Kabushiki Kaisha Toshiba
Martin David S.
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