POWER SOURCE CONTROLLER FOR VEHICLE AND CONTROL METHOD OF POWER SUPPLY DEVICE FOR VEHICLE

• Main Authors: SHIBACHI YOSHINORI, KOMIYA MOTOKI, KUME MASAYOSHI
• Format: Patent
• Language: English; Japanese
• Published: 05.10.2017
• Subjects: BASIC ELECTRIC ELEMENTS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; PERFORMING OPERATIONS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SYSTEMS FOR STORING ELECTRIC ENERGY; TRANSPORTING; VEHICLES IN GENERAL; VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR

PROBLEM TO BE SOLVED: To efficiently discharge an electric charge accumulated in a capacitor.SOLUTION: A poser source controller executes: a first discharge control that discharges an accumulated electric charge to a capacitor 4 comprised to a vehicle 2 to a battery 5 for driving an auxiliary machine 6 mounted on the vehicle 2; and a second discharge control that discharges the electric charge of the capacitor 4 to a ground GND when a charging amount of the battery 5 is reached to a predetermined threshold value during the first discharge control. Thus, the electric charge of the capacitor 4 can be discharged even after the charge of the battery 5 is filled. Therefore, deterioration of the capacitor 4 can be prevented without remaining the electric charge in the capacitor 4.SELECTED DRAWING: Figure 2 【課題】キャパシタに蓄積された電荷を十分に放電する。【解決手段】車両２に備えられたキャパシタ４に蓄積された電荷を、車両２に搭載された補機６を駆動するバッテリ５へ放電させる第１放電制御と、第１放電制御中にバッテリ５の充電量が所定の閾値に達した場合にキャパシタ４の電荷をグランドＧＮＤへ放電させる第２放電制御とを実行する。これにより、バッテリ５が満充電となった後にもキャパシタ４の電荷を放電させることができる。したがって、キャパシタ４に電荷を残留させることがなく、キャパシタ４の劣化を防止できる。【選択図】図２