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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 =...

Introduction to battery-management systems- COURSERA WEEK 04 QUIZ -1.4.7 ANSWERS

 

Practice quiz for lesson 1.4.7

Question 1

Which of the following are diagnostics that a BMS may need to compute and communicate to the host application or service technician? Select all that apply.

1 / 1 point
Correct

Yes. The host application may wish to understand the state of health of different cells in the battery pack, particularly any cell that is limiting performance.

Correct

Yes. The host application and/or the service technician may wish to know about any BMS internal failures.

Correct

Yes. A service technician may wish to study the abuse conditions when diagnosing battery-system failures.

Question 2

Which of the following estimates attempts to predict how much life remains as either a percentage or amount of calendar time?

1 / 1 point
Correct

Yes. State of life is a prediction of remaining battery cell (or pack) life.

Question 3

Which of the following constitutes a BMS internal failure that should be logged if detected?

1 / 1 point
Correct

Yes. These are all internal failures that should be logged if detected.

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