To provide a secondary battery deterioration control device for an electric vehicle capable of controlling a deterioration state so as to achieve a target value by setting a deterioration target value of a secondary battery after a certain period of time by the user in an electric vehicle equipped with a drive motor, a secondary battery, and a power generation engine.SOLUTION: The secondary battery deterioration control device for an electric vehicle includes: a target deterioration value setting unit 29 for setting by a user a target capacity maintenance rate of a secondary battery after a target period has passed; a capacity maintenance rate calculation unit 31 for calculating a capacity maintenance rate of the secondary battery; a target deterioration rate calculation unit 33 for calculating a target deterioration rate at a predetermined time from the target capacity maintenance rate and the capacity maintenance rate at a predetermined time; and a limit control unit 35 for controlling charging and discharging by limiting a SOC of the secondary battery to a predetermined range when an updated target deterioration rate after a predetermined period has elapsed from an initial time is small compared to an initial target deterioration rate at the initial time when the target capacity maintenance rate is set.SELECTED DRAWING: Figure 1
【課題】本発明の少なくとも一つの実施形態は、駆動モータ、二次電池、及び発電用エンジンを搭載した電動車両において、ユーザが一定期間後の二次電池の劣化目標値を設定し、その目標値になるように劣化状態を制御可能な電動車両の二次電池劣化制御装置を提供することを目的とする。【解決手段】ユーザが目標期間の経過後の二次電池の目標容量維持率を設定する目標劣化値設定部29と、二次電池の容量維持率を算出する容量維持率算出部31と、目標容量維持率と所定時点における容量維持率とから所定時点の目標劣化速度を算出する目標劣化速度算出部33と、目標容量維持率を設定した初期時の初期目標劣化速度に対して初期時から所定期間経過した更新目標劣化速度が小さい場合に、二次電池のSOCを所定の範囲に制限して充電及び放電を制御する制限制御部35と、を備えることを特徴とする。【選択図】図1
SECONDARY BATTERY DETERIORATION CONTROL DEVICE FOR ELECTRIC VEHICLE
電動車両の二次電池劣化制御装置
2019-09-19
Patent
Elektronische Ressource
Japanisch
IPC: | H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
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