PRECISION CONTROL OF AUTOMATIC TRANSMISSIONS: THE SUMMARY OF 50 YEARS DEVELOPMENT

KRASNEVSKY Leonid G., Corresponding Member of the National Academy of Sciences of Belarus, Dr. Techn. Sc., Professor, Chief Researcher, Joint Institute of Mechanical Engineering of the National Academy of Sciences, Minsk, Republic of Belarus

PODDUBKO Sergei N., Cand. Techn. Sc., Associate Professor, General Director, Joint Institute of Mechanical Engineering of the National Academy of Sciences, Minsk, Republic of Belarus

The basic stages of development and results of the theory and techniques of automotive automatic transmissions control in close connection with the evolution of transmissions are considered. These stages cover a period of 50 years - from three- or four- stage hydraulic automatic hydromechanical transmissions to modern integrated mechatronic control systems of multistage hydromechanical and hybrid electro-mechanical transmissions by leading automotive companies.

automatic transmissions of vehicles, mechatronic control systems of automatic transmissions

• Krasnevsky L.G. Sostojanie i perspektivy razvitija avtomaticheskih transmissij mobil’nyh mashin [State and prospects of development of automatic transmissions of mobile machines]. Aktual’nye voprosy mashinovedenija: sb. nauch. tr. [Topical issues of Mechanical Engineering: Coll. of scientific papers]. Minsk, OIM NAN Belarusi, 2012, vol. 1, pp. 115-121.
• Toyota Jidosha K.K. Control apparatus for vehicular automatic transmission. Patent US, no. 7419452, 2008.
• Takaaki Tookura [et al.]. Development of smooth up-shift control technology for automatic transmissions with integrated control of engine and automatic transmissions. SAE 2007-01-1310.
• Transmission and control. Patent US, no. 3505907, 1970.
• Robert C. Boyer. Digital Electronic Controls for Detroit Diesel Allison Heavy Hauling Transmissions. SAE 1986-09-01.
• Krasnevsky L.G., Poddubko S.N., Nikolaev Ju.I. Razvitie konstrukcij gidromehanicheskih peredach bol’shoj moshhnosti [The development of design of high power hydro-mechanical transmissions]. Aktual’nye voprosy mashinovedenija: sb. nauch. tr. [Topical issues of Mechanical Engineering: Coll. of scientific papers]. Minsk, OIM NAN Belarusi, 2014, vol. 3, pp. 83-87.
• Allison Transmission Offers Better Fuel Economy with TC10 for Tractor Trucks. Allison Transmission - Investor Relations, News Release, 2013.
• Hydraulic clutch control system. GM Global Technology Operations LLC. Patent US, no. 8348797, 2013.
• TraXon from ZF a modular automatic heavy transport transmission. Diesel. News.com.au, 2013.
• Hybrid system. Allison Transmission. Patent US, no. 8545367, 2013.
• Manual valve control for multi-speed planetary transmission. Allison Transmission, Ins. Patent US, no. 8403791, 2013.
• Krasnevsky L.G. Sovremennaja teorija i tehnika upravlenija gidromehanicheskimi peredachami mobil’nyh mashin [The modern theory and control technology of hydromechanical transmissions of mobile machines]. Aktual’nye voprosy mashinovedenija: sb. nauch.
• tr. [Topical issues of Mechanical Engineering: Coll. of scientific papers]. Minsk, OIM NAN Belarusi, 2013, vol. 2, pp. 53-62.
• Adaptive control of an automatic transmission. General Motors Corp. Patent US, no. 5072390, 1991.
• Control method of clutch-to-clutch powered downshift in an automatic transmission. General Motors Corp. Patent US, no. 5029494, 1991.
• State detecting device for load element receiving load of working fluid and state detecting device for fluid pressure control circuit. Toyota. Patent US, no. 7159506, 2007.
• Fluid pressure control apparatus/process. Jatco Ltd. Patent US, no. 8150555, 2012.