Disclosed is a diagnostic apparatus (100) provided with a capacitor (10) capable of being connected in parallel with a first battery (200), a plurality of first switches (1) switching a connection state between the capacitor (10) and a plurality of the first batteries (200), a detection circuit (20), a second switch (2) switching a connection state between the capacitor (10) and the detection circuit (20), a circuit-changing switch (32) switching a connection state between a second battery (300) and the capacitor (10), a control unit (60), and a diagnostic unit. The control unit (60) turns onthe circuit-changing switch (32) to apply a voltage from the second battery (300) to the capacitor (10). Then, the detection circuit (20) detects a potential difference or a discharge current, and thediagnostic unit diagnoses at least one of the capacitor (10), a lowermost first switch (1K), and the second switch.
诊断装置(100)包括:电容器(10),其能够与第一电池(200)并联连接;多个第一开关(1),其用于切换多个第一电池(200)与电容器(10)的连接状态;检测电路(20);第二开关(2),其用于切换电容器(10)与检测电路(20)的连接状态;切换开关(32),其用于切换第二电池(300)与电容器(10)的连接状态;控制部(60);以及诊断部。控制部(60)在使切换开关(32)接通而从第二电池(300)向电容器(10)施加电压之后,检测电路(20)检测电位差或者放电电流,诊断部对电容器(10)、最下级的第一开关(1K)以及第二开关(2)中的至少一个进行诊断。
Diagnostic apparatus and diagnostic method
诊断装置和诊断方法
2020-11-17
Patent
Elektronische Ressource
Chinesisch
IPC: | G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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 |
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