VEHICLE TRAVEL CONTROL SYSTEM, VEHICLE, AND VEHICLE CONTROL METHOD

• Main Authors: MATSUMOTO JUNICHI, KIKUCHI YOSHITERU, UOTANI AKIO
• Format: Patent
• Language: English; Japanese
• Published: 26.07.2021
• Subjects: ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES; ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; BASIC ELECTRIC ELEMENTS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRICITY; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; GENERATION; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; PERFORMING OPERATIONS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT; SYSTEMS FOR STORING ELECTRIC ENERGY; TRANSPORTING; VEHICLES IN GENERAL

To ensure compatibility between two ECUs.SOLUTION: A vehicle 9 includes: a current sensor 22 for detecting a current charged to or discharged from a battery 10; and a battery ECU 40 for monitoring a state of the battery 10. An HV system 2 of the vehicle 9 includes: a PCU 50 electrically connected between the battery 10 and a second motor generator 62; and an HVECU 100 which has a power limit value (Win, Wout) indicating power allowed to be charged to or discharged from the battery 10, and which, when the detection value of the current sensor 22 exceeds a control threshold, controls the PCU 50 so as to execute current feedback control to correct the power limit value on the basis of the excess. The HVECU 100 receives, from the battery ECU 40, an allowable current of the battery 10 which is determined to protect the battery 10, and uses the allowable current as the control threshold to execute the current feedback control.SELECTED DRAWING: Figure 2 【課題】２つのＥＣＵ間の適合性を確保する。【解決手段】車両９は、バッテリ１０に充放電される電流を検出する電流センサ２２と、バッテリ１０の状態を監視する電池ＥＣＵ４０とを備える。車両９のＨＶシステム２は、バッテリ１０と第２モータジェネレータ６２との間に電気的に接続されたＰＣＵ５０と、バッテリ１０が充放電が可能な電力である電力制限値（Ｗｉｎ，Ｗｏｕｔ）を有し、電流センサ２２の検出値が制御しきい値を超過した場合に、その超過量に基づいて電力制限値を補正する電流フィードバック制御を実行するようにＰＣＵ５０を制御するＨＶＥＣＵ１００とを備える。ＨＶＥＣＵ１００は、バッテリ１０を保護するために定められるバッテリ１０の許容電流を電池ＥＣＵ４０から受け、許容電流を制御しきい値として電流フィードバック制御を実行する。【選択図】図２