PROBLEM TO BE SOLVED: To provide a vehicle power source device in which internal resistance of a storage battery can be detected even after electric charges are accumulated in a capacitor.SOLUTION: The vehicle power source device comprises: a first control part that controls inverter circuits Tr1-Tr6 which convert direct current power of a storage battery BATT to alternating current power to drive a motor MOT having a plurality of phases; contact parts SW1 and SW3; a precharge resistor Rp and a precharge contact SW2 for pre-charging a capacitor C which is connected in parallel to the storage battery; and a second control part that controls the contact parts SW1 and SW3 and the precharge contact SW2. When voltages of the storage battery BATT are stabilized, the second control part switches the precharge contact SW2 into a closed state, and the first control part controls the inverter circuits Tr1-Tr6 so that single-phase electric currents of the motor MOT are flown to the precharge resistor Rp, and therefore detects internal resistance of the storage battery BATT.SELECTED DRAWING: Figure 1
【課題】 コンデンサに電荷が溜まった後でも、蓄電池の内部抵抗を検出可能な車両の電源装置を提供する。【解決手段】 車両の電源装置は、蓄電池BATTの直流電力を交流電力に変換して複数相のモータMOTを駆動するインバータ回路Tr1〜Tr6を制御する第1の制御部と、コンタクタ部SW1,SW3と、蓄電池に並列接続されるコンデンサCをプリチャージするためのプリチャージ抵抗器Rp及びプリチャージコンタクタSW2と、コンタクタ部SW1,SW3及びプリチャージコンタクタSW2を制御する第2の制御部と、を備える。蓄電池BATTの電圧が安定している時に、第2の制御部は、プリチャージコンタクタSW2を閉状態に切り換えるとともに、第1の制御部は、インバータ回路Tr1〜Tr6を制御して、プリチャージ抵抗器RpにモータMOTの単相の電流を流すことによって、蓄電池BATTの内部抵抗を検出する。【選択図】 図1
VEHICLE POWER SOURCE DEVICE
車両の電源装置
2018-05-24
Patent
Electronic Resource
Japanese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / 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 / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
VEHICLE POWER-SOURCE DEVICE AND VEHICLE-POWER-SOURCE-DEVICE CONTROL METHOD
European Patent Office | 2016
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