VEHICLE

• Main Authors: MATSUMOTO JUNICHI, KIKUCHI YOSHITERU, UOTANI AKIO
• Format: Patent
• Language: English; Japanese
• Published: 24.06.2021
• Subjects: BASIC ELECTRIC ELEMENTS; 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; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SYSTEMS FOR STORING ELECTRIC ENERGY; TRANSPORTING; VEHICLES IN GENERAL

To facilitate separation of causes of failures between a cause originating in a vehicle and a cause originating in a battery on the occurrence of the failures in the vehicle mounted with a replaceable battery.SOLUTION: An electric vehicle comprises: a battery pack 10 including a battery ECU 13; a gate ECU 60 which is installed separately from the battery pack 10; and an HVECU 50 which is installed separately from the battery pack and the gate ECU 60 and controls either battery power or battery current of the battery 11 as a control object. The gate ECU 60 relays communication between the battery ECU 13 and the HVECU 50 and causes a ring buffer 60e to store history information on information communicated between the battery ECU 13 and the HVECU 50.SELECTED DRAWING: Figure 4 【課題】交換可能な電池パックを搭載した車両において、不具合発生時に車両と電池パックとで不具合の発生原因の切り分けを容易とする。【解決手段】電動車両は、電池ＥＣＵ１３を含む電池パック１０と、電池パック１０とは別個に設けられたゲートＥＣＵ６０と、電池バックおよびゲートＥＣＵ６０とは別個に設けられ、バッテリ１１の電池電力及び電池電流のうちのいずれか一方を制御対象として制御するＨＶＥＣＵ５０とを備える。ゲートＥＣＵ６０は、電池ＥＣＵ１３とＨＶＥＣＵ５０との間の通信を中継するとともに、電池ＥＣＵ１３とＨＶＥＣＵ５０との間で授受される情報についての履歴情報をリングバッファ６０ｅに記憶させる。【選択図】図４