Lesson 1Thermal management strategies: passive air, forced-air, liquid cooling, an PCM options fi urban duty cyclesDis section reviews thermal management options fi city EV packs, including passive an forced air, liquid cooling, an phase change materials, an explains how drive cycles, climate, an fast charging requirements shape di final thermal system design in hot Jamaica.
Thermal limits fi safety an aging controlPassive an forced-air cooling architecturesLiquid cooling plates an manifoldsPhase change materials fi peak shavingControl strategies fi urban drive cyclesLesson 2Nominal pack voltage selection an implications fi inverter/motor design an charging powerDis section explains how fi choose nominal pack voltage, its impact on inverter an motor design, current levels, cable sizing, an DC fast charging power, while addressing insulation, safety clearances, an standards relevant to city-focused EV platforms.
Voltage ranges used in modern city EVsImpact of voltage on inverter an motor designCurrent, conductor sizing, an lossesCharging power, connectors, an standardsInsulation, creepage, an clearance rulesLesson 3End-of-life an second-life strategies: reuse fi stationary storage, recycling pathways an design-fi-recycling principlesDis section covers end-of-life pathways fi EV packs, including health assessment fi second-life use, repurposing into stationary storage, recycling processes fi key materials, an design-fi-recycling principles dat reduce cost an environmental impact in Jamaica.
State-of-health thresholds fi second-life useStationary storage applications fi used packsMechanical an electrical repurposing stepsRecycling processes fi Li, Ni, Co, an CuDesign-fi-disassembly an labeling practicesLesson 4Selecting cell chemistry fi city EVs: LFP, NMC variants, pros/cons (energy density, safety, cycle life, supply chain)Dis section compares LFP an NMC chemistries fi city EVs, focusing on energy an power density, safety behavior, cycle an calendar life, raw material supply risks, cost trends, an how duty cycle an climate guide di final chemistry choice fi Jamaican heat.
Key performance metrics fi EV cell chemistriesLFP characteristics fi urban duty cyclesNMC variants an performance trade-offsSafety an abuse tolerance of LFP vs NMCSupply chain, cost, an regional availabilityLesson 5Lifetime an cycle-life modelling: calendar vs cycle aging, depth-of-discharge policies, warranty framingDis section explains lifetime an cycle-life modeling, distinguishing calendar an cycle aging, di role of depth of discharge an temperature, an how fi translate models into warranties, maintenance plans, an residual value estimates fi city EV fleets.
Calendar aging mechanisms an modelsCycle aging vs depth-of-discharge effectsTemperature influence on degradation ratesSimple lifetime prediction workflowsWarranty, residual value, an fleet planningLesson 6Battery capacity sizing: methods to choose pack kWh fi target range an reserve factorDis section details methods to size battery capacity, using drive cycle energy models, efficiency assumptions, reserve factors, an degradation allowances, to meet target range while balancing cost, mass, charging time, an fleet utilization needs in Jamaica.
Drive cycle energy consumption modelingUsable vs nominal capacity definitionsReserve factors an degradation marginsImpact of capacity on cost an massSizing fi fleets an shared mobilityLesson 7Battery pack mass estimation: energy density-based calculations an vehicle-level impact on rangeDis section presents methods to estimate pack mass from cell an pack-level energy density, including structural an cooling overheads, an evaluates how battery mass influences vehicle range, performance, payload, an regulatory weight classes fi city EVs.
Gravimetric an volumetric energy densityBottom-up pack mass calculation stepsAccounting fi structure an cooling hardwareEffect of pack mass on range an efficiencyPayload, axle load, an class limitsLesson 8Cell format an mechanical layout: pouch, prismatic, cylindrical trade-offs fi manufacturability an repairabilityDis section analyzes pouch, prismatic, an cylindrical cell formats, comparing packing efficiency, cooling options, structural integration, manufacturability, an repairability, an shows how module an pack layouts affect cost, safety, an service procedures.
Characteristics of pouch, prismatic, cylindricalModule architectures an busbar conceptsMechanical fixation an vibration robustnessCooling plate an airflow path integrationServiceability an field repair strategiesLesson 9Battery management system (BMS) essentials: state-of-charge (SoC), state-of-health (SoH), cell balancing, safety cutoffsDis section introduces BMS functions, including SoC an SoH estimation, cell voltage an temperature monitoring, balancing strategies, safety cutoffs, an communication wid vehicle controllers, emphasizing reliability an functional safety fi city EVs.
Core BMS hardware an sensing elementsSoC estimation algorithms an errorsSoH tracking an aging indicatorsPassive vs active cell balancing methodsFault detection, limits, an shutdown logic
