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Introduction to battery-management systems- COURSERA WEEK 04 FINAL QUIZ

 Introduction to battery-management systems- COURSERA WEEK 04  FINAL QUIZ 1 . Question 1 W hich of the followi ng detection mechanisms could protect a battery pack from overcurre nt? Select all that apply. 1 point Contactor Thermal fuse Electronic protection Resettable fuse 2 . Question 2 Suppose that a small passenger vehicle expends energy at a rate of 220Wh/mile while driving. If this vehicle's battery pack is charged at a 6.6kW rate, what is the rate of range added to the battery in "miles (of range) per hour"? Round your answer to the nearest "mph". 1 point 3 . Question 3 Suppose that a positive-electrode material has \theta_{0\%}^{\rm pos}=0.99 θ 0 % p o s ​ = 0 . 9 9 and \theta_{100\%}^{\rm pos}=0.49 θ 1 0 0 % p o s ​ = 0 . 4 9 . If \theta_k^{\rm pos}=0.59 θ k p o s ​ = 0 . 5 9 , what is the present cell state-of-charge (in percent)? Round to the nearest percent. 1 point 4 . Question 4 Suppose that a lithium-ion cell having total charge capacity Q=10 Q =...
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Introduction to battery-management systems- COURSERA WEEK 04 QUIZ -1.4.1 ANSWERS

 Introduction to battery-management systems- COURSERA WEEK 04 QUIZ -1.4.1 ANSWERS

Practice quiz for lesson 1.4.1

Question 1

Which of the following detection mechanisms could protect a battery pack from overtemperature? Select all that apply.

1 / 1 point
Correct

Yes. A thermal fuse trips when the temperature exceeds some limit, and can be used as a thermal protection device.

Correct

Yes. Software and/or dedicated electronics can monitor temperature and can therefore sense and protect against excessive temperature

Correct

Yes. A resettable fuse trips when a combination of temperature and current exceeds some limit, and can be used as a thermal protection device

Question 2

Which of the following detection mechanisms could protect a battery pack from an out-of-tolerance voltage? Select all that apply.

1 / 1 point
Correct

Yes. Software and/or dedicated electronics can monitor voltage and can therefore sense and protect against out-of-tolerance voltage.

Question 3

What type(s) of fault(s) should a BMS be able to detect? Select all that apply.

1 / 1 point
Correct

Yes. The BMS should be able to detect communication errors among its internal components, and between itself and the application.

Correct

Yes. The BMS should be able to detect whether the battery pack is sufficiently isolated.

Correct

Yes. Redundant processing cores can execute the same instructions and compare results to ensure that consistent results are computed.

Correct

Yes. The BMS should robustly detect over/undervoltage and over/undertemperature.

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