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A battery optimization control system for new energy vehicles

A new energy vehicle, optimized control technology, applied in the direction of electric braking system, battery/fuel cell control device, electric vehicle charging technology, etc., can solve the problem of insufficient battery output performance, to ensure the consistency of charging and discharging, and ensure stability The effect of reducing the energy consumption of restarting

Active Publication Date: 2021-03-02
若瑞(上海)文化科技有限公司
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Problems solved by technology

[0006] The purpose of the present invention is to provide a battery optimization control system for new energy vehicles, which balances the working battery during battery charging and discharging to stabilize the output voltage, and stabilizes the output voltage of the battery pack through redundant batteries, thereby stabilizing the motor driver The voltage at both ends, and effectively recover the braking energy of the car, the invention solves the technical problem of insufficient output performance of the new energy car battery

Method used

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  • A battery optimization control system for new energy vehicles
  • A battery optimization control system for new energy vehicles
  • A battery optimization control system for new energy vehicles

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Embodiment Construction

[0039] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the explanatory text.

[0040] Such as Figure 1-6 As shown, the present invention provides a battery optimization control system for new energy vehicles, including:

[0041] The battery pack is composed of several selectively connected battery arrays. It can be understood that the number of battery arrays can be set according to requirements. In this embodiment, the battery pack is composed of two selectively connected battery arrays. Several working batteries, every two working batteries are set in parallel through a switch to form a battery pack, several battery packs are connected in series to form a battery array, and the two ends of each battery array are respectively connected to the two ends of the car charging interface. When charging, the two batteries The arrays can be charged simul...

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Abstract

The invention discloses a battery optimization control system for a new energy vehicle, including a battery pack; a motor driver; a first DC converter, which is arranged at an output end of an inverter circuit; a first pair of contacts; a second pair of contacts; a transformer , the primary side is provided with a bidirectional switch, the primary side and the secondary side of the transformer are selectively closed and contacted with the first pair of contacts or the second pair of contacts through the bidirectional switch; and a redundant battery, which is connected to the input of the first DC converter The output terminal of the first DC converter is also connected to the bidirectional switch; wherein, the output terminal of the first DC converter is combined with at least one battery pack in each battery array in series to form a discharge circuit, and the motor driver selects in a series discharge circuit. The invention solves the technical problem of insufficient output performance of the new energy vehicle battery.

Description

technical field [0001] The invention relates to the technical field of new energy vehicles, in particular to a battery optimization control system for new energy vehicles. Background technique [0002] In recent years, more and more products use lithium-ion batteries as the main power source, mainly because lithium-ion batteries have the advantages of small size, high energy density, no memory effect, high cycle life, and low self-discharge rate; but at the same time, lithium-ion batteries Ion batteries have high requirements for charging and discharging. When overcharge, overdischarge, overcurrent and short circuit occur, the pressure and heat of lithium ion batteries will increase greatly, which will easily generate sparks, burn and even explode. Therefore, lithium ion batteries are without exception Both grounds are equipped with an overcharge and discharge protection circuit. In addition, when charging and discharging a group of lithium-ion batteries, considering the in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L50/64B60L58/22B60L53/24B60L7/10
CPCB60L2210/10B60L53/20B60L58/19B60L58/22Y02T10/70Y02T10/7072Y02T10/72Y02T90/14
Inventor 储建华高霞
Owner 若瑞(上海)文化科技有限公司
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