About this Course
최근 조회 6,429

100% 온라인

지금 바로 시작해 나만의 일정에 따라 학습을 진행하세요.

유동적 마감일

일정에 따라 마감일을 재설정합니다.

중급 단계

완료하는 데 약 16시간 필요

권장: 13 hours/week...

영어

자막: 영어

100% 온라인

지금 바로 시작해 나만의 일정에 따라 학습을 진행하세요.

유동적 마감일

일정에 따라 마감일을 재설정합니다.

중급 단계

완료하는 데 약 16시간 필요

권장: 13 hours/week...

영어

자막: 영어

강의 계획 - 이 강좌에서 배울 내용

1
완료하는 데 4시간 필요

How does lithium-ion cell health degrade?

As battery cells age, their total capacities generally decrease and their resistances generally increase. This week, you will learn WHY this happens. You will learn about the specific physical and chemical mechanisms that cause degradation to lithium-ion battery cells. You will also learn why it is relatively simple to estimate and track changes to resistance, but why it is difficult to track changes to total capacity accurately.

...
8 videos (Total 89 min), 12 readings, 7 quizzes
8개의 동영상
4.1.2: What changes as a cell ages?16m
4.1.3: Negative-electrode aging processes at particle surface16m
4.1.4: Negative-electrode aging processes in bulk and composite electrode9m
4.1.5: Positive-electrode aging processes10m
4.1.6: Sensitivity of cell voltage to changes in equivalent series resistance (ESR)17m
4.1.7: Sensitivity of cell voltage to changes in cell total capacity9m
4.1.8: Summary of "How does lithium-ion cell health degrade?"; what next?2m
12개의 읽기 자료
Notes for lesson 4.1.11m
Frequently Asked Questions5m
Course Resources5m
How to Use Discussion Forums5m
Earn a Course Certificate5m
Notes for lesson 4.1.21m
Notes for lesson 4.1.31m
Notes for lesson 4.1.41m
Notes for lesson 4.1.51m
Notes for lesson 4.1.61m
Notes for lesson 4.1.71m
Notes for lesson 4.1.81m
7개 연습문제
Practice quiz for lesson 4.1.29m
Practice quiz for lesson 4.1.39m
Practice quiz for lesson 4.1.49m
Practice quiz for lesson 4.1.59m
Practice quiz for lesson 4.1.615m
Practice quiz for lesson 4.1.79m
Quiz for week 145m
2
완료하는 데 4시간 필요

Total-least-squares battery-cell capacity estimation

Total capacity is often estimated using ordinary-least-squares (OLS) methods. This week, you will learn that this is a fundamentally incorrect approach, and will learn that a total-least-squares (TLS) method should be used instead. You will learn how to derive a weighted OLS solution, to use as a benchmark, and how to derive a weighted TLS solution also.

...
7 videos (Total 68 min), 7 readings, 7 quizzes
7개의 동영상
4.2.2: How to find the ordinary-least-squares solution as a benchmark9m
4.2.3: Making the ordinary-least-squares solution computationally efficient12m
4.2.4: Setting up weighted total-least-squares solution11m
4.2.5: Finding the solution to a weighted total-least-squares problem10m
4.2.6: Confidence intervals on least-squares solutions11m
4.2.7: Summary of "Total-least-squares battery-cell capacity estimation"; what next?2m
7개의 읽기 자료
Notes for lesson 4.2.11m
Notes for lesson 4.2.21m
Notes for lesson 4.2.31m
Notes for lesson 4.2.41m
Notes for lesson 4.2.51m
Notes for lesson 4.2.61m
Notes for lesson 4.2.71m
7개 연습문제
Practice quiz for lesson 4.2.19m
Practice quiz for lesson 4.2.215m
Practice quiz for lesson 4.2.315m
Practice quiz for lesson 4.2.49m
Practice quiz for lesson 4.2.515m
Practice quiz for lesson 4.2.615m
Quiz for week 245m
3
완료하는 데 4시간 필요

Simplified total-least-squares battery-cell capacity estimates

Unfortunately, the weighted TLS solution you learned in week 2 is not well suited for efficient computation on an embedded system like a BMS. As an intermediate step toward finding an efficient weighted TLS method, you will first learn a proportionally weighted TLS method this week. You will then learn how to generalize this to an "approximate weighted TLS" (AWTLS) method, which gives good estimates, and is feasible to implement on a BMS.

...
7 videos (Total 64 min), 7 readings, 7 quizzes
7개의 동영상
4.3.2: Making simplified solution computationally efficient6m
4.3.3: Defining geometry for approximate full solution to weighted total least squares12m
4.3.4: Finding appropriate cost function for approximate full solution to WTLS problem8m
4.3.5: Finding solution to the AWTLS problem10m
4.3.6: Adding fading memory8m
4.3.7: Summary of "Simplified total-least-squares battery-cell capacity estimates"; what next?4m
7개의 읽기 자료
Notes for lesson 4.3.11m
Notes for lesson 4.3.21m
Notes for lesson 4.3.31m
Notes for lesson 4.3.41m
Notes for lesson 4.3.51m
Notes for lesson 4.3.61m
Notes for lesson 4.3.71m
7개 연습문제
Practice quiz for lesson 4.3.115m
Practice quiz for lesson 4.3.220m
Practice quiz for lesson 4.3.39m
Practice quiz for lesson 4.3.49m
Practice quiz for lesson 4.3.515m
Practice quiz for lesson 4.3.615m
Quiz for week 345m
4
완료하는 데 4시간 필요

How to write code for the different total-capacity estimators

So far this course, you have learned a number of methods for estimating total capacity. This week, you will learn how to implement those methods in Octave code. You will also explore different simulation scenarios to benchmark how well each method works, in comparison with the others. The scenarios are representative of hybrid-electric-vehicle (HEV) and battery-electric-vehicle (BEV) applications, but the principles learned can be extrapolated to other similar application domains.

...
6 videos (Total 70 min), 6 readings, 6 quizzes
6개의 동영상
4.4.2: Demonstrating Octave code for HEV: Scenario 121m
4.4.3: Demonstrating Octave code for HEV: Scenarios 2–37m
4.4.4: Demonstrating Octave code for BEV: Scenario 16m
4.4.5: Demonstrating Octave code for BEV: Scenarios 2–310m
4.4.6: Summary of "How to write code for the different total-capacity estimators"; what next?9m
6개의 읽기 자료
Notes for lesson 4.4.11m
Notes for lesson 4.4.21m
Notes for lesson 4.4.31m
Notes for lesson 4.4.41m
Notes for lesson 4.4.51m
Notes for lesson 4.4.61m
6개 연습문제
Practice quiz for lesson 4.4.115m
Practice quiz for lesson 4.4.215m
Practice quiz for lesson 4.4.315m
Practice quiz for lesson 4.4.415m
Practice quiz for lesson 4.4.515m
Quiz for week 445m

강사

Gregory Plett

Professor
Electrical and Computer Engineering

콜로라도 대학교 정보

The University of Colorado is a recognized leader in higher education on the national and global stage. We collaborate to meet the diverse needs of our students and communities. We promote innovation, encourage discovery and support the extension of knowledge in ways unique to the state of Colorado and beyond....

Algorithms for Battery Management Systems 전문 분야 정보

In this specialization, you will learn the major functions that must be performed by a battery management system, how lithium-ion battery cells work and how to model their behaviors mathematically, and how to write algorithms (computer methods) to estimate state-of-charge, state-of-health, remaining energy, and available power, and how to balance cells in a battery pack....
Algorithms for Battery Management Systems

자주 묻는 질문

  • 강좌에 등록하면 바로 모든 비디오, 테스트 및 프로그래밍 과제(해당하는 경우)에 접근할 수 있습니다. 상호 첨삭 과제는 이 세션이 시작된 경우에만 제출하고 검토할 수 있습니다. 강좌를 구매하지 않고 살펴보기만 하면 특정 과제에 접근하지 못할 수 있습니다.

  • 강좌를 등록하면 전문 분야의 모든 강좌에 접근할 수 있고 강좌를 완료하면 수료증을 취득할 수 있습니다. 전자 수료증이 성취도 페이지에 추가되며 해당 페이지에서 수료증을 인쇄하거나 LinkedIn 프로필에 수료증을 추가할 수 있습니다. 강좌 내용만 읽고 살펴보려면 해당 강좌를 무료로 청강할 수 있습니다.

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