Power supply controller, electric vehicle and battery control unit

A voltage measurement part 200 measures voltage Vn for each of the blocks of a battery pack 7 , electric current In is measured with the same timing by a current measuring circuit 201 , and a counter 206 counts the number of times an effective load power Pn obtained from a product of the electric cu...

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Bibliographic Details
Main Authors NAKANISHI TOSHIAKI, MINAMIURA KEIICHI
Format Patent
LanguageEnglish
Published 30.05.2006
Subjects
CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES
ELECTRICITY
ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES
PERFORMING OPERATIONS
SYSTEMS FOR STORING ELECTRIC ENERGY
TRANSPORTING
VEHICLES IN GENERAL
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Summary:A voltage measurement part 200 measures voltage Vn for each of the blocks of a battery pack 7 , electric current In is measured with the same timing by a current measuring circuit 201 , and a counter 206 counts the number of times an effective load power Pn obtained from a product of the electric current and voltage of each block by an electric power computation part 203 exceeds permissible electric power values Pcn and Pdn calculated by a permissible electric power computation part 205 , such that when the count value is equal to or higher than a preset value, a decision part 207 outputs a contactor opening request signal Copen so as to bring the contactors into an open state and protect the battery pack.
Bibliography:Application Number: US20050266073