An electronic wedge brake (EWB) uses the wedge principle to provide a self-reinforcement mechanism, resulting in reduced current to the actuation motor. However, this mechanism can lead to an unstable open-loop system. In this study, an upper-wedge moving-type EWB is developed and a control algorithm is proposed to follow the target clamping force and to prevent jamming of the EWB system using the push—pull control of the actuator. The performance of the EWB is evaluated using a dynamometer and a simulator. Based on testing and simulation, the clamping force and braking time of the proposed EWB are shown to be satisfactory with respect to the required braking deceleration.
HartmannH.SchauttM.PascucciA.GombertB.eBrake®: the mechatronic wedge brake. SAE paper 2002-01-2582, 2002.
2.
RobertsR.SchauttM.HartmannH.GombertB.Modelling and validation of the mechatronic wedge brake. SAE paper 2003-01-3331, 2003.
3.
RobertsR.GombertB.HartmannH.LangeD.SchauttM.Testing the mechatronic wedge brake. SAE paper 2004-01-2766, 2004.
4.
BaloghL.StréliT.NémethH.PalkovicsL.Modelling and simulating of self-energizing brake system. Veh. System Dynamics2006, 44(1), Suppl. 368–377.
5.
HoL. M.RobertsR.HartmannH.GombertB.The electronic wedge brake: EWB. SAE paper 2006-01-3196, 2006.
6.
FoxJ.RobertsR.Baier-WeltC.HoL. M.LacraruL.GombertB.Modeling and control of a single motor electronic wedge brake. SAE paper 2007-01-0866, 2007.
7.
KwonO.ShinD.KimM.Improvement of the braking efficiency of the electromechanical brake using a double-wedge structure. In Proceedings of the KSAE Daegu Gyeongbuk Branch 2007 Fall Conference, 2007, paper 07-G0014, pp. 30–34 (Korean Society of Automotive Engineers, pp. 30–34 (Korean Society of Automotive Engineers, Seoul).
8.
KimF.KimM.KimJ.NohK.Developing of electronic wedge brake with cross wedge. SAE paper 2009-01-0856, 2009.
9.
HwangY.ChoiS.Adaptive sliding-mode control of the electronic wedge brake. In Proceedings of the KSAE Annual Conference, 2007, pp. 1020–1026 (Korean Society of Automotive Engineers, Seoul).
