Online Monitoring Of Brake Capability for Heavy Vehicles

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dc.contributor.authorSoundhararajan, Ramprasad
dc.contributor.authorChandrashekar, Prajwal Devegowdana Koppal
dc.contributor.departmentChalmers tekniska högskola / Institutionen för mekanik och maritima vetenskapersv
dc.contributor.departmentChalmers University of Technology / Department of Mechanics and Maritime Sciencesen
dc.date.accessioned2019-07-03T15:00:03Z
dc.date.available2019-07-03T15:00:03Z
dc.date.issued2019
dc.description.abstractThe recent advancement in heavy vehicle brakes involves development of a novel fastacting electronic brake system. This brake system comprises a slip controller that aids in reducing the stopping distances and tracks longitudinal wheel slip demands accurately during extreme braking manoeuvres. The slip controller and pressure controller relies on the knowledge of the ‘brake gain’ to calculate the desired brake pressures. The brake gain is defined as a relation between applied brake pressure and received brake torque. Currently the brake gain is assumed to be known and a constant, which is far from true. In this master thesis an algorithm to measure and estimate the brake gain on-line has been developed and evaluated. The developed estimator captures the variation of the brake gain with brake fade and actuator geometry. A temperature model is developed to estimate disc temperature based on the total braking energy at each braking event. The predicted brake disc temperature is used to estimate the discpad interface friction coefficient. Further this information is used to monitor the brake capability. The developed estimator shows that the estimations converge to the reference.
dc.identifier.urihttps://hdl.handle.net/20.500.12380/256683
dc.language.isoeng
dc.relation.ispartofseriesMaster's thesis - Department of Mechanics and Maritime Sciences : 2019:11
dc.setspec.uppsokTechnology
dc.subjectTransport
dc.subjectFarkostteknik
dc.subjectTransport
dc.subjectVehicle Engineering
dc.titleOnline Monitoring Of Brake Capability for Heavy Vehicles
dc.type.degreeExamensarbete för masterexamensv
dc.type.degreeMaster Thesisen
dc.type.uppsokH
local.programmeAutomotive engineering (MPAUT), MSc
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