Abstract
This paper presents a novel mechanical transmission for pulling-cable electronic parking brakes (EPBs). The system is interposed between the brake electric actuator and the brake pads, and it exploits a 2DOF planar linkage to provide the requested brake force and ensure the correct vehicle standstill. This paper describes the working principles and main component of the adopted architecture, and compares it with the EPB state of the art. Thereafter, the paper focuses on the system requirements and consequent functional design. A first prototype of the presented mechanical transmission is then presented to discuss the role of a mechanical engagement within the system to ensure its proper behavior. In conclusion, the EPB drive motor assessment is discussed on the basis of a simplified drive chain dynamic model.
Graphical Abstract Figure
References
1.
Schmittner
, B.
, 2015
, “Electric Parking Brake on the Way to Standard - New Trends
.” SAE Technical Paper
2015-01-2669, SAE International, Warrendale, PA, pp. 2688
–3627
, Accessed October 18, 2023. 2.
Leiter
, R.
, 2002
, “Design and Control of an Electric Park Brake
.” SAE
Technical Paper 2002-01-2583, SAE International
, Warrendale, PA
, Accessed October 18, 2023. 3.
Huang
, C.-T.
, Chen
, C.-T.
, Cheng
, S.-Y.
, Chen
, B.-R.
, and Huang
, M.-H.
, 2008
, “Design and Testing of a New Electric Parking Brake Actuator
,” SAE Int. J. Pass. Cars—Mech. Syst.
, 1
(1
), pp. 217
–1222
. 4.
“Parking Brake-Products and Technology | ADVICS CO., LTD.” https://www.advics.co.jp/eng/product/lineup/parking.html, Accessed October 18, 2023.
5.
“Continental Automotive.” http://www.continental-automotive.com/en-gl/Passenger-Cars/Safety-and-Motion/Products/Brakes/Electronic-Brakes, Accessed October 18, 2023.
6.
“Electric Park Brake - Küster Holding GmbH.” https://www.kuester.net/en/products/actuators/60-brake-systems/128-electric-park-brake, Accessed October 18, 2023.
7.
“Electronic Parking Brake | SKF.” https://www.skf.com/group/industries/agriculture/products-and-solutions/electronic-parking-brake, Accessed October 18, 2023.
8.
“The New Brembo’s Electromechanical Braking System (EPB).” https://www.brembo.com/en/company/news/brembo-electromechanical-braking-system-epb, Accessed October 18, 2023.
9.
“Electric Park Brake (EPB).” https://www.zf.com/products/en/cars/products_64237.html, Accessed October 18, 2023.
10.
“Electric Parking Brake.” https://www.hella.com/techworld/ae/Technical/Brakes/Electric-parking-brake-211/, Accessed October 18, 2023.
11.
Cheon
, J. S.
, Jeon
, J. W.
, Jung
, H. M.
, Park
, I. U.
, Park
, C. H.
, and Yeo
, T. -J.
, 2009
, “Main Design Factors and Unified Software Structure for Cable Puller and Caliper Integrated Type Electric Parking Brakes
,” SAE Int. J. Pass. Cars—Mech. Syst.
, 2
(2
), pp. 17
–23
. 12.
Wang
, B.
, Guo
, X.
, Zhang
, C.
, Xiong
, Z.
, and Zhang
, J.
, 2015
, “Modeling and Control of an Integrated Electric Parking Brake System
,” J. Frank. Inst.
, 352
(2
), pp. 626
–644
. 13.
Schwarz
, R.
, Isermann
, R.
, Böhm
, J.
, Nell
, J.
, and Rieth
, P.
, 1999
, “Clamping Force Estimation for a Brake-by-Wire Actuator
.” SAE
Technical Paper 1999-01-0482, SAE International
, Warrendale, PA
, Accessed October 18, 2023, pp. 2688
–3627
. 14.
Quaglia
, G.
, Pepe
, F.
, and Colucci
, G.
, 2023
, Functional Design of an Articulated Reconfigurable Mechanism for Electronic Parking Brake Systems
, New Advances in Mechanisms, Transmissions and Applications
(Mechanisms and Machine Science
), M. A.
Laribi
, C. A.
Nelson
, M.
Ceccarelli
, and S.
Zeghloul
, eds., Springer Nature
, Switzerland Cham
, pp. 306
–315
.15.
Chesney
, D. R.
, and Kremer
, J. M.
, 1998
, “Generalized Equations for Sprag One-Way Clutch Analysis and Design
,” SAE Trans.
, 107, Report No. 981092, pp. 1582
–1592
. 16.
Bondaletov
, V. P.
, Medvedev
, V. I.
, and Petrov
, A. V.
, 2010
, “Reliability of Free-Wheel Mechanisms in Pulsed Continuously Variable Transmission
,” Russian Eng. Res.
, 30
(10
), pp. 995
–998
. 17.
Hollerbach
, J. M.
, Hunter
, I. W.
, and Ballantyne
, J
, 1992
, “A Comparative Analysis of Actuator Technologies for Robotics,” The Robotics Review 2
, O.
Khatib
, J.
Craig
, and T.
Lozano-Perez
, eds., MIT Press
, Cambridge, MA
, pp. 299
–342
.18.
Hollander
, K. W.
, and Sugar
, T. G.
, 2005
, “Design of Lightweight Lead Screw Actuators for Wearable Robotic Applications
,” ASME J. Mech. Des.
, 128
(3
), pp. 644
–648
, 19.
2012
, “EC 60 Flat With MILE Encoder and Protection Class IP 54.” http://www.maxongroup.com/maxon/view/news/MEDIENMITTEILUNG-EC60-flat-MILE-EN, Accessed October 17, 2023.
