VEHICLE

• Main Authors: SUGITA MIKI, SUZUKI TAKEAKI, IWASAKI SHINSUKE, ANDO YUYA
• Format: Patent
• Language: English; Japanese
• Published: 07.05.2020
• 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; GENERATION; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; PERFORMING OPERATIONS; SYSTEMS FOR STORING ELECTRIC ENERGY; TRANSPORTING; VEHICLES IN GENERAL; VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR

To provide a vehicle which reduces a power storage ratio of an auxiliary battery and a drop amount of the voltage.SOLUTION: A vehicle 20 includes: a main battery 26; an auxiliary battery 30 which has the lower rating voltage than the main battery; a main DC/DC converter 32 which steps down the power of a high voltage side power line PH connected with the main battery to supply the power to a low voltage side power line PL connected with the auxiliary battery; a first auxiliary machine 36 which is connected with the low voltage side power line and is required for activation in a system off state; a second auxiliary machine 38 which is connected with the low voltage side power line and is not required for activation in the system off state; and a switch 40 which can release connection between the low voltage side power line and the second auxiliary machine.SELECTED DRAWING: Figure 1 【課題】補機電池の蓄電割合や電圧の低下量を低減する車両を提供する。【解決手段】車両２０は、メインバッテリ２６と、メインバッテリよりも定格電圧の低い補機バッテリ３０と、メインバッテリが接続された高電圧側電力ラインＰＨの電力を降圧して補機バッテリが接続された低電圧側電力ラインＰＬに供給するメインＤＣ／ＤＣコンバータ３２と、低電圧側電力ラインに接続されると共にシステムオフ状態で作動が必要とされる第１補機３６と、低電圧側電力ラインに接続されると共にシステムオフ状態で作動が必要とされない第２補機３８と、低電圧側電力ラインと第２補機との接続を解除可能なスイッチ４０とを備える。【選択図】図１