The embodiment of the invention provides a cut-off method of a high-voltage loop, a controller of the high-voltage loop, a high-voltage system and a computer storage medium. The method comprises the following steps: when a high-voltage loop enters an emergency state from a working state, acquiring a current value obtained by performing current sampling on the high-voltage loop; when the current value is smaller than or equal to the first current threshold value, controlling to cut off the high-voltage loop; when the current value is greater than the first current threshold value, if the heat is greater than the heat threshold value, fusing a fuse wire in the traditional fuse to cut off the high-voltage loop. According to the invention, after the high-voltage loop enters the emergency state from the working state, the current value obtained by current sampling of the high-voltage loop is obtained, when the current value is compared with the first current threshold value, the accuracy of the comparison result is improved, and different high-voltage loop cut-off schemes are adopted according to the comparison result, and the high-voltage loop is controlled to be cut off or a fuse wire in a traditional fuse is fused, so that the high-voltage loop is cut off in a grading manner, and the high-voltage loop can be cut off quickly and effectively.
本申请实施例提供一种高压回路的切断方法、高压回路的控制器、高压系统及计算机存储介质。该方法包括:当高压回路由工作状态进入紧急状态,获取对高压回路进行电流采样得到的电流值;当电流值小于或等于第一电流阈值时,控制切断高压回路;当电流值大于第一电流阈值时,若热量大于热量阈值,则传统熔断器中熔丝熔断,以切断高压回路。本申请中是在高压回路由工作状态进入紧急状态之后,获取对高压回路进行电流采样得到的电流值,在将电流值与第一电流阈值进行比较时,提高比较结果的准确性,并根据比较结果采用不同的高压回路切断方案,控制切断高压回路或者传统熔断器中熔丝熔断,实现了分级切断高压回路,能够快速有效的切断高压回路。
High-voltage loop cut-off method, controller and high-voltage system
高压回路的切断方法、控制器及高压系统
2022-01-18
Patent
Elektronische Ressource
Chinesisch
IPC: | H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen / 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 |
Europäisches Patentamt | 2021
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