高电压电池断连方法和使用该方法的机动载具
By combining current sensor monitoring with a control method that integrates explosive fuses, thermal fuses, solid-state relays, and contactors, the problem of disconnection in high-voltage battery systems under failure conditions was solved, achieving efficient and low-cost voltage disconnection and improving the disconnection quality and performance of the system.
CN117584748BActive Publication Date: 2026-07-17GM GLOBAL TECHNOLOGY OPERATIONS LLC
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Filing Date
- 2023-01-30
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing high-voltage battery systems have difficulty achieving voltage disconnection efficiently and at low cost in the event of failure, leading to power loss and hardware quality issues.
Method used
A combined control method using current sensors, explosive fuses, thermal fuses, solid-state relays, and contactors is employed to disconnect the battery pack from the DC voltage bus under different failure conditions through various battery disconnection processes.
Benefits of technology
It improves the disconnection quality and performance of the battery system under failure conditions, reduces costs, and reduces power loss.
✦ Generated by Eureka AI based on patent content.
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Figure CN117584748B_ABST
Abstract
提供了一种用于控制载具电池系统的方法，所述载具电池系统包括具有正和负总线轨的电压总线、连接到所述电压总线并且具有正和负电池端子的至少一个电池组、以及电池断连单元。所述方法包括：通过在检测到事件状况时执行第一电池断连过程、通过在检测到高过电流状况时执行第二电池断连过程、以及通过在检测到低过电流状况时执行第三电池断连过程来经由所述电池断连单元将所述至少一个电池组从所述电压总线断连。第一电池断连过程利用断开主要爆炸熔丝，第二电池断连过程利用热熔丝、固态继电器和 / 或电流传感器中的一个或多个，并且第三电池断连过程利用一个或多个接触器或固态继电器。
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