The invention relates to a discharging system for an automobile high-voltage bus capacitor, which is characterized by comprising a thin-film capacitor, an IGBT (Insulated Gate Bipolar Translator) circuit, a motor, a microprocessor, a thermistor and a thermistor controller, the thin-film capacitor is arranged on a high-voltage bus between the power battery and the IGBT circuit, the motor is electrically connected with the IGBT circuit, and the microprocessor is coupled to the motor; the microprocessor is used for controlling the on-off of an upper bridge arm or a lower bridge arm in the IGBT circuit so as to enable the thin-film capacitor, the upper bridge arm or the lower bridge arm and the motor to form a through-flow loop and further reduce the voltage of the thin-film capacitor; the thermistor is electrically connected with the thermistor controller and is connected in parallel with the thin-film capacitor; the thermistor controller is used for controlling the thermistor to be connected to a circuit comprising the thin-film capacitor so that the thermistor can convert electric energy of the thin-film capacitor into heat energy to reduce the voltage of the thin-film capacitor in a heat consumption mode.
本申请涉及一种用于汽车高压母线电容的放电系统,其特征在于,包括:薄膜电容、IGBT电路、电机、微处理器、热敏电阻、热敏电阻控制器;所述薄膜电容设置于所述动力电池与所述IGBT电路之间的高压母线上,所述电机与所述IGBT电路电性连接,所述微处理器耦接于所述电机;所述微处理器用于控制所述IGBT电路中上桥臂或下桥臂的通断以使得所述薄膜电容与所述上桥臂或下桥臂及所述电机形成通流回路进而对所述薄膜电容进行降压;所述热敏电阻与所述热敏电阻控制器电性连接且并联于所述薄膜电容,所述热敏电阻控制器用于控制所述热敏电阻接入包括所述薄膜电容的电路以使得所述热敏电阻将所述薄膜电容的电能转换为热能以热量消耗形式对所述薄膜电容降压。
Discharging system for automobile high-voltage bus capacitor, vehicle and discharging method
用于汽车高压母线电容的放电系统、车辆及放电方法
2023-05-05
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern |
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