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<Spec id="114" path="\7\3\73a215241d161591b68ae13508c8584a.pdf"><Text id="20496" page="1">EXTID-200 - Subsystem engine cooling and lubrication (SECLU) is partitioned into two main parts: 1) Engine Temperature ( ENTE ) The main objective of the AGGR ENTE is control of the temperature of the combustion engine. This is handled by: - measurement of engine temperature ( cooling water temperature ) with sensors - control of water flow in cooling water circuits via pumps and valves - control of cooling of engine via fans and radiator shutters For each of the sensors/actuators diagnostics are provided. 2) Engine Lubrication ( ENLU ) The main objective of the AGGR ENLU is lubrication/cooling of the combustion engine and service interval calculation for engine oil. This is handled by: measurement/modeling of oil temperature with sensor or by model - control of the oil pressure via oil pump - control of piston cooling via valve - calculation of time/distance until next oil change For each of the sensors/actuators diagnostics are provided.</Text><Text id="20497" page="1">EXTID-201 - In the engine cooling and lubrication control design specification, the architecture and the project specific configuration are illustrated. The architecture describes the used components and their interfaces, which are needed in order to respect the project specific design requirements and stakeholder requests. The correct function and the fulfillment of the engine cooling and lubrication control requirement specification can only be guaranteed when the following is fulfilled: - the configuration of the engine cooling and lubrication design specification is correctly applied - the component fulfills his requirement specification and - the correct function of all interfaces is verified</Text><Text id="20498" page="1">EXTID-202 - Project configuration: The project configuration defines the components of the subsystem element SECLU includes the application SW Components: ENTE = Engine Temperature (legacy naming - this is the ASW component for handling all powertrain temperature / thermal features independent of powertrain type combustion/hybrid/electric) abbreviationcomponentcomponent identifier C-Ssoftware consisting of ASWENTE BSWdifferent BSW firmware C-Eelectric componentCECU17 MC: micro controllerTC3xx ESC: electrical circuit for sensorsHW circuit C-SENSengine tempreatureLIN: cooler jalousie/ roller blind PWM: water pumps PWM: cooling fans LIN: Proportional mixing valve analog: Temperature sensors digital: switching valve (3/2 way valve) SENT: differential pressure sensors</Text></Spec>