VEHICLE, VEHICLE CONTROL SYSTEM, AND VEHICLE CONTROL METHOD

• 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 provide a vehicle, a vehicle control system, and a vehicle control method capable of performing power reference output limitation for a secondary battery included in a current-limited battery pack.SOLUTION: The vehicle includes a battery pack 10 including a battery ECU 13 and an HVECU 50 that is separate from the battery pack 10. The battery pack 10 further includes a battery 11 (secondary battery) and a battery sensor 12 that detects the state of the battery 11. The battery ECU 13 is configured to obtain IWout, which indicates the upper limit of the output current of the battery 11, using a detection value of the battery sensor 10. The HVECU 50 is configured to control the output power of the battery 11 using Wout, which indicates an upper limit value of the output power of the battery 11. The vehicle is provided with a conversion unit 600 that converts IWout to Wout by multiplying IWout by an estimated voltage value, which is a voltage value of the battery 11 in a state where a current equivalent to IWout is flowing.SELECTED DRAWING: Figure 4 【課題】電流制限型の電池パックに含まれる二次電池に対して電力基準の出力制限を行なうことができる車両、車両制御システム、車両制御方法を提供する。【解決手段】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ＨＶＥＣＵ５０とを備える。電池パック１０は、バッテリ１１（二次電池）と、バッテリ１１の状態を検出する電池センサ１２とをさらに含む。電池ＥＣＵ１３は、電池センサ１０の検出値を用いて、バッテリ１１の出力電流の上限値を示すＩＷｏｕｔを求めるように構成される。ＨＶＥＣＵ５０は、バッテリ１１の出力電力の上限値を示すＷｏｕｔを用いて、バッテリ１１の出力電力を制御するように構成される。車両には、ＩＷｏｕｔに相当する電流が流れている状態のバッテリ１１の電圧値である電圧推定値とＩＷｏｕｔとを乗算することによりＩＷｏｕｔをＷｏｕｔに変換する変換部６００が搭載されている。【選択図】図４