Intelligent power distribution module and power supply system

Abstract

The invention discloses an intelligent power distribution module and a power supply system. The intelligent power distribution module comprises an isolation control module. The isolation control module comprises a first isolation module and a first signal acquisition module which are connected, a second isolation module and a second signal acquisition module which are connected, and a control module; the control module is respectively connected with the first isolation module, the first signal acquisition module, the second isolation module and the second signal acquisition module; and the control module is used for controlling the first isolation module to execute corresponding operation according to the current and / or voltage signal of the first loop acquired by the first signal acquisition module, and controlling the second isolation module to execute corresponding operation according to the current and / or voltage signal of the second loop acquired by the second signal acquisition module. According to the invention, the cost and weight can be greatly reduced, the system design difficulty is reduced, the isolation range is improved, and the maintenance difficulty is reduced.

Description

technical field [0001] The invention belongs to the technical field of low-voltage energy supply for automobiles, and more specifically relates to an intelligent power distribution module and a power supply system. Background technique [0002] With the continuous development of intelligence in the automobile industry and the gradual popularization of electric vehicles, the safety and stability of electric vehicle power supply systems have also received more and more attention. The existing electric vehicle redundant low-voltage power supply system mainly has the following problems: 1. The protection control unit disconnects after detecting abnormal voltage / current. At this time, the whole vehicle is only powered by the battery, lacking DCDC supply, and the continuous working time is short; 2. The isolation of safety loads and non-safety loads is not realized; 3. It is necessary to add an isolator or isolating switch to form an independent protection control unit, which is c...

AI Technical Summary

Problems solved by technology

The existing electric vehicle redundant low-voltage power supply system mainly has the following problems: 1. The protection control unit disconnects after detecting abnormal voltage / current. At this time, the whole vehicle is only powered by the battery, lacking DCDC supply, and the continuous working time is short; 2. The isolation of safety loads and non-safety loads is not realized; 3. It is necessary to add an isolator or isolating switch to form an independent protection control unit, which is costly. Moreover, for the redundant design of L3 automatic driving, its safety level requirements It is very high, and the new isolator will increase the risk of failure; 4. The traditional isolator can only isolate the abnormal voltage and current of the main circuit, but cannot effectively isolate the abnormal voltage and current of the specific load, and can only be used by blowing the fuse. The abnormal load is disconnected, it cannot be self-recovery and the fuse needs to be replaced

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