An electric vehicle comprises essential components like Motor, Gearbox, Motor Controller, and Battery Pack. The Lithium...

 

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An electric vehicle comprises essential components like Motor, Gearbox, Motor Controller, and Battery Pack. The Lithium lon Battery Pack should operate within a certain temperature range, for example, 20 to 30 deg. Celsius for longevity of life. Thus there is a need for a thermal management system which can cool the battery pack in hot climates and heat the battery pack in extremely cold dimates so that optimum temperature is maintained. Working temperature of the components should be in the range given below:- 1) Battery Pack : 0 to 35 Degree C 2) Motor : -40 to 120 Degree C 3) Motor Controller: -20 to 100 Degree C 4) GearBox: -40 to 150 Degree C Question A: Design a thermal management system which can provide cooling of Motor, Gearbox & Motor Controller and provide both cooling and heating of Battery Pack. You can use the optional components provided in the diagram below. There is no limit on the quantity of optional components to be used, except for the radiator, only one radiator can be used. The goal is to design an effective and compact themal management system. You are supposed to draw a schematic diagram using essential and optional components. The Motor, Motor Controller & Battery Pack are water cooled while the Gearbox is oil cooled. Coolant Inlets and outlets are mentioned in the diagram. Heat Exchanger is a liquid to liquid heat exchanger. Inlet O Outlet Motor A Controller Motor Water Cooled T>Tambient Water Cooled T>Tambient C Gearbox D d Battery Pack Oil Cooled T>Tambent Water Cooled T<Temoient Radiator One Way Valve O Pump D Heat Exchanger Refrigerant Expansion Valve Refrigerant Compressor Question B: Justify the sequence of components in respective thermal loops in the previous answer. Optional Components Essential Components An electric vehicle comprises essential components like Motor, Gearbox, Motor Controller, and Battery Pack. The Lithium lon Battery Pack should operate within a certain temperature range, for example, 20 to 30 deg. Celsius for longevity of life. Thus there is a need for a thermal management system which can cool the battery pack in hot climates and heat the battery pack in extremely cold dimates so that optimum temperature is maintained. Working temperature of the components should be in the range given below:- 1) Battery Pack : 0 to 35 Degree C 2) Motor : -40 to 120 Degree C 3) Motor Controller: -20 to 100 Degree C 4) GearBox: -40 to 150 Degree C Question A: Design a thermal management system which can provide cooling of Motor, Gearbox & Motor Controller and provide both cooling and heating of Battery Pack. You can use the optional components provided in the diagram below. There is no limit on the quantity of optional components to be used, except for the radiator, only one radiator can be used. The goal is to design an effective and compact themal management system. You are supposed to draw a schematic diagram using essential and optional components. The Motor, Motor Controller & Battery Pack are water cooled while the Gearbox is oil cooled. Coolant Inlets and outlets are mentioned in the diagram. Heat Exchanger is a liquid to liquid heat exchanger. Inlet O Outlet Motor A Controller Motor Water Cooled T>Tambient Water Cooled T>Tambient C Gearbox D d Battery Pack Oil Cooled T>Tambent Water Cooled T<Temoient Radiator One Way Valve O Pump D Heat Exchanger Refrigerant Expansion Valve Refrigerant Compressor Question B: Justify the sequence of components in respective thermal loops in the previous answer. Optional Components Essential Components