New PDF release: Battery Management Systems: Design by Modelling

By H.J. Bergveld, W.S. Kruijt, P.H.L Notten

ISBN-10: 9048161088

ISBN-13: 9789048161089

ISBN-10: 9401708436

ISBN-13: 9789401708432

Battery administration platforms - layout through Modelling describes the layout of Battery administration platforms (BMS) by means of simulation equipment. the fundamental projects of BMS are to make sure optimal use of the power kept within the battery (pack) that powers a transportable gadget and to avoid harm inflicted at the battery (pack). This turns into more and more very important as a result higher strength intake linked to extra gains to transportable units at the one hand and the call for for longer run instances however. as well as explaining the overall rules of BMS projects equivalent to charging algorithms and State-of-Charge (SoC) indication tools, the publication additionally covers real-life examples of BMS performance of useful moveable units resembling shavers and mobile telephones.

Simulations provide the virtue over measurements that much less time is required to realize wisdom of a battery's behaviour in interplay with different elements in a transportable equipment less than a large choice of stipulations. this information can be utilized to enhance the layout of a BMS, even sooner than a prototype of the moveable equipment has been equipped. The battery is the relevant a part of a BMS and strong simulation types that may be used to enhance the BMS layout have been formerly unavailable. as a result, a wide a part of the e-book is dedicated to the development of simulation versions for rechargeable batteries. through numerous illustrations it really is proven that layout advancements can certainly be discovered with the offered battery types. Examples contain a far better charging set of rules that was once elaborated in simulations and tested in perform and a brand new SoC indication procedure that was once built exhibiting promising effects.

The contents of Battery administration platforms - layout via Modelling relies on years of analysis played on the Philips learn Laboratories. the mix of easy and certain descriptions of battery behaviour either in chemical and electric phrases makes this booklet really multidisciplinary. it will probably hence be learn either through individuals with an (electro)chemical and an electric engineering historical past.

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Sample text

Depending on the charging algorithm, the current that flows into the battery will sometimes have to be measured. This can be done by measuring the voltage across a low-ohmic resistor in series with the battery. Based on the measured battery variables, the charging process is controlled inside the PM using a suitable charging algorithm. 2) to the battery pack is desirable in case batteries of different types and/or chemistries can be used with the portable product. An example is the addition of a resistor to every battery pack, with one connection to the battery minus terminal and another to an extra terminal on the battery pack.

Although both battery-pack supervisory and charge-balancing circuits prevent major differences between cells, the differences that arise from manufacturing spread can never be eliminated. Other functions that can be integrated within a battery pack Especially when electronic circuitry, such as a safety device or a charge-balancing circuit, is already present in a battery pack, it is relatively cheap to add extra functionality. The addition of some intelligence to a battery itself is advantageous, because each type of battery has to be approached in a specific way.

The current supplied by the PM in this mode is lower than in the similar situation in the low-end shaver, which makes current measurement with resistor R 2 attractive. The CHC function has been included in the TCM. The microcontroller communicates to the rest of the system through the Interface IC (IIC). The IIC measures the battery temperature and current. The temperature is measured through an NTC that is in contact with both batteries. The battery current is measured via the Battery Management Systems 25 voltage across resistor R 3 .

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Battery Management Systems: Design by Modelling by H.J. Bergveld, W.S. Kruijt, P.H.L Notten


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