Long-acting high-power battery protection system with intelligent management

By setting up a secondary control system and a surge absorbing battery cell in the vehicle battery management system, the damage to the power supply rail load by the voltage surge during start and stop of the vehicle is solved, and the battery life is extended and the protection of load equipment is achieved, reducing the complexity of design Sex and cost.

CN119283712APending Publication Date: 2025-01-10苏国信 +2
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202411408318.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-10-10
Publication Date
2025-01-10

AI Technical Summary

Technical Problem

The instantaneous voltage surges generated by the existing vehicle battery management system when the vehicle starts and stops cause damage to the load on the power supply rail, and it is difficult to effectively match the vehicle design of different powers, resulting in the failure of the decoupling method and increasing cost and volume.

Method used

A long-term and efficient high-power battery protection system with intelligent management was designed. By setting up a secondary control system, low-power switching components, high-capacity relays and battery cell voltage balance system in the battery management system, the large current is shunt and outside the battery The parallel wave surge absorbs the battery cell, effectively absorbing instantaneous voltage surges, and avoiding damage to the load on the power supply rail.

Benefits of technology

Effectively control the current path during vehicle startup, reduces the failure rate and cost of the charge and discharge transistor switch, extends the battery life, and eliminates instantaneous voltage and surges through the surge absorbing cell, protects the load equipment on the power supply rail, and reduces the Design complexity and cost.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119283712A_ABST
    Figure CN119283712A_ABST
Patent Text Reader

Abstract

A long-acting high-power battery protection system with intelligent management comprises a battery, a battery cell, a surge absorption battery cell and a battery management system, and the battery management system is provided with an auxiliary control system, a low-power switch element, a high-capacity relay and a battery cell voltage balance system. When a load detection and pre-charging control circuit in the auxiliary control system detects a large-current load generated by starting of a vehicle, a low-power switch element firstly interrupts the high load connected with a battery management system, and a high-capacity relay is started in real time, so that large current can pass through the high-capacity relay; according to the invention, a surge absorbing cell is connected in parallel with the outside of a battery to provide a large current required by a vehicle load device when an engine is started, control a path for instantly generating the large current when the vehicle is started, and control the voltage difference between cells of the battery through a battery cell voltage balancing system to protect a circuit and greatly prolong the service life of the battery, and meanwhile, the surge absorbing cell is connected in parallel with the outside of the battery, so that the reliability of the battery is improved. And the purpose of effectively eliminating instantaneous voltage surge on the power supply rail to protect vehicle elements can be achieved.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Long-acting high-power battery system with intelligent management

    CN118700897A