To provide a sticking detector and a sticking detection method capable of accurately detecting a stuck-open of a secondary relay.SOLUTION: A sticking detector comprises a detection section and a determination section. The detection section detects a voltage at a connection point between two relays connected in series with directions of parasitic diodes reversed to each other, in an electric path from a main battery to a load. The determination section determines the stuck-open of a secondary relay on the basis of the detected result of the voltage in the detection section when a relay instruction is given to turn off a primary relay and turn on the secondary relay between the two relays.SELECTED DRAWING: Figure 2
【課題】2次側のリレーの開固着を高精度に検出することができる固着検出装置および固着検出方法を提供すること。【解決手段】実施形態に係る固着検出装置は、検出部と、判定部とを備える。検出部は、主電池から負荷までの電路において、寄生ダイオードの向きを互いに逆にして直列接続された2つのリレーの接続箇所における電圧を検出する。判定部は、2つのリレーのうち、1次側のリレーをオフ、かつ、2次側のリレーをオンするリレー指示が行われた場合に、検出部における電圧の検出結果に基づいて2次側のリレーの開固着を判定する。【選択図】図2
STICKING DETECTOR AND STICKING DETECTION METHOD
固着検出装置および固着検出方法
2021-04-08
Patent
Electronic Resource
Japanese
IPC: | H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / H01H Elektrische Schalter , ELECTRIC SWITCHES / 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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