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An Investigation of Integrated Retarder/Foundation Brake Systems for Commercial Vehicles
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English
Abstract
Commercial vehicles such as buses and trucks operating on our highways today have brake systems designed to achieve acceptable levels of braking performance for both effectiveness stops and long downhill braking. Using foundation brakes alone, temperature limitations have resulted in heavy drum and brake assemblies. Basic engineering analysis reveals that hydrodynamic retarders can be designed to absorb nearly downhill braking energy in addition to up to 90% of the braking energy developed during a typical effectiveness stop. Integrated retarder/foundation brake systems allow significantly increased downhill traffic speeds, and decreased driver fatigue due to improved ease of vehicle control, and provide brakes that are essentially fade free during extended downhill operation. Vehicles thus equipped will exhibit three to four times longer brake lining life, lower maintenance costs, and vehicle down times, as well as higher operating speeds. Existing Federal Motor Vehicle Safety Standards need to be modified to include optional procedures for retarder equipped vehicles.
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Citation
Limpert, R., "An Investigation of Integrated Retarder/Foundation Brake Systems for Commercial Vehicles," SAE Technical Paper 750126, 1975, https://doi.org/10.4271/750126.Also In
References
- Deall J.A. Weiss K. “Exhaust Brake Effectiveness.” Automobile Engineers 52 4 April 1962 236 39
- Meyer W.E. “Trucks Could Use Manifold Braking in Addition to Wheel Brakes.” SAE Journal December 1955 20 22
- Humpidge C.T. “Two Million Miles with Exhaust Brakes.” Bus and Coach 32 8 August 1960 283 85
- Slee A.G. Cox W.K. “Exhaust Brake Design and Operation.” Institution Road Transport Engineers Paper, Lecture Session 1956-57
- “Exhaust Brakes and Retarders - A Review of the Units Available and Their Performance.” Automobile Engineer March 1970 103
- Kemp R.N. “Exhaust Brake Performance.” Automobile Engineer 47 10 October 1957 414 19
- Brockington P.A.C. Exhaust Brakes, Commercial Motor Febraury 17 1961
- “Exhaust Braking Equipment.” Automobile Engineer March 1954
- Koffman J.L. “A Review of Applications for Diesel Engined Vehicles.” Automobile Engineer May 1953
- Eisele E. “Beurteilung der Motorbremse mit Hilfe des Bremskraftdiagrams.” ATZ February 1952
- Slee A.G. Cox W.K. Exhaust Brake Design and Operation Rhondda Transport Company LTD
- Bode O. Irmler C. ATZ 62 1 January 1960 1 5 62 2 February 1960 42 47
- “Auxiliary Braking System.” Automobile Engineer 47 7 July 1957 282 86
- Rohne E. ATZ 69 5 1967 145 49
- Cummins D.D. “The Jacobs Engine Drake Application and Performance.” Paper 660740 SAE combined powerplant and transportation meetings Chicago October 1966
- Drusseis show Automobile Engineer 1956 46 2 54
- Johannis E. “The Effect of Engine Braking on the Thermal State of the Diesel Engine.” ATZ 57 1955 7
- Enders W. “Investigation on Auxiliary Drakes for Heavy Lorries.” Heft 86, Dusseldorf 1955
- Maki E.C. “Retarders for Highway Vehicle.” New York Society of Automotive Engineers, Inc., paper 396C September 1961
- Strien H. Mehmet O. “Continuous Braking System for Truck-Trailer Combination.” Automobil-Industrie 12 3 September 1967 83 87 89 92
- “Auxiliary Braking Devices.” Commercial Motor December 1966 42 45
- “Retarders Help Prevent Runaway Trucks.” SAE Journal 65 February 1957 34 40
- Nagel W.S. “Full Retarder-Design and Development.” Society of Automotive Engineers, Inc. paper 650626 August 1965
- Mueller H. “The Voith Hydraulic Retarder for Vehicles.” ATZ 69 5 1967 142 44
- Mueller H. “The Voith-Hydrodynamic Brake for Vehicles.” ATZ 69 1967 5
- Strien H. Mehmet O. “Continuous Brake System for Heavy Commercial Vehicles.” Automobil-Industrie 1967 3
- Depenheuer O. Strien H. “The Retarder for Commercial Vehicles and Its Effects on Traffic Flow and Safety.” Teves GmbH Special Publication October 1972
- Endres W. “Investigation of Downhill Braking of Heavy Commercial Vehicles.” ATZ 58 1956 6
- Rohne E. “Consideration on the Design of Continuous Brakes for Commercial Vehicle.” ATZ 69 1967 5
- Schmidt H. “The Hydrodynamic Brake as Continuous and Advanced Brake for Commercial Vehicles.” ATZ 1972 7
- Annen “Auxiliary Braking System.” Automobile Engineer 1957 47 7 283
- Herbeur E.J. “Design and Performance Features of the Thompson Hydraulic Retarder.” New York Society of Automotive Engineers, Inc., paper 880 1959
- Teves A. “Retarder-The Brake Without Wear for Commercial Trucks Buses.” Teves GmbH Publication Franfurt, Germany
- Limpert R. “Temperature and Stress Analysis of Solid-Rotor Disc Brakes.” University of Michigan 1972
- Limpert R. “Analysis and Design of Motor Vehicle Brake Systems.” 446 Ford Motor Company Lecture Series
- “Bus, Truck, Tractor/Trailer Braking System Performance,” Final Report for U.S. Department of Transportation January 1971 Murphy R. Segel L.