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Parameter Design of a Parallel Hydraulic Hybrid Vehicle Driving System Based on Regenerative Braking Control Strategy

University of Technology Sydney-Shilei Zhou, Paul Walker, Yang Tian, Nong Zhang
Published 2019-04-02 by SAE International in United States
In this paper, hydraulic driving system parameters of a parallel hydraulic hybrid vehicle are designed based on the regenerative braking requirement. Torque, speed and power demands during typical driving cycles are analyzed. The braking control strategy is designed considering both the braking safety and braking energy recovery efficiency. The hydraulic braking torque is determined by the braking control strategy. The proportional relationship of hydraulic pump/ motor output torque and its working pressure is considered. Through simulation with typical city driving cycles, most braking energy can be recovered by the proposed hydraulic driving system and braking control strategy.
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Aircraft Deicing Vehicle - Self-Propelled

G-12E Equipment Committee
  • Aerospace Standard
  • ARP1971D
  • Current
Published 2019-02-13 by SAE International in United States
This SAE Aerospace Recommended Practice (ARP) covers requirements for a self-propelled, boom-type aerial device, equipped with an aircraft deicing/anti-icing fluid spraying system. The unit shall be highly maneuverable for deicing all exterior surfaces of commercial aircraft, of sizes agreed upon between purchaser and manufacturer, in accordance with AS6285. The vehicle shall be suitable for day and night operations.
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Internal Combustion Engine Handbook, 2nd English Edition

Audi AG-Richard Van Basshuysen
Fachhochschule Iserlohn-Fred Schaefer
  • Book
  • R-434
Published 2016-03-07 by SAE International in United States
More than 120 authors from science and industry have documented this essential resource for students, practitioners, and professionals. Comprehensively covering the development of the internal combustion engine (ICE), the information presented captures expert knowledge and serves as an essential resource that illustrates the latest level of knowledge about engine development. Particular attention is paid toward the most up-to-date theory and practice addressing thermodynamic principles, engine components, fuels, and emissions. Details and data cover classification and characteristics of reciprocating engines, along with fundamentals about diesel and spark ignition internal combustion engines, including insightful perspectives about the history, components, and complexities of the present-day and future IC engines. Chapter highlights include: • Classification of reciprocating engines • Friction and Lubrication • Power, efficiency, fuel consumption • Sensors, actuators, and electronics • Cooling and emissions • Hybrid drive systems Nearly 1,800 illustrations and more than 1,300 bibliographic references provide added value to this extensive study. “Although a large number of technical books deal with certain aspects of the internal combustion engine, there has been no publication until now…
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ERRATUM: Direct Fuel Injector Power Drive System Optimization

SAE International Journal of Engines

Xiaohua Zhang, Albert Kascak
Dept Of Army-Chol-Bum "Mike" Kweon
  • Journal Article
  • 2014-01-1442ERR
Published 2014-08-01 by SAE International in United States
As published, Figures 4, 6, 22, and 26 contained errors and are corrected in the erratum.
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Direct Fuel Injector Power Drive System Optimization

SAE International Journal of Engines

Texas A&M University-Xiaohua Zhang, Alan Palazzolo, Erwin Thomas, Randall Tucker
U.S. Army Research Laboratory-Chol-Bum Kweon
  • Journal Article
  • 2014-01-1442
Published 2014-04-01 by SAE International in United States
The objective of this study is to optimize the injector power drive system for improved fuel injection quantity and timing control. The power drive system was optimized for improved injection repeatability under different operating conditions such as fuel supply pressures. A coupled simulation of injector electromagnetic, pintle (needle) rigid body motion and computational fluid dynamics (CFD) model was employed to generate the optimal values of the 1st stage current, the 1st stage on-time and the 2nd stage current. The simulation results were validated against the experimental data measured with a photo detector measurement system.
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Hydraulic Hybrid Terminology and Definitions

Truck and Bus Powertrain Committee
  • Ground Vehicle Standard
  • J2898_201211
  • Current
Published 2012-11-21 by SAE International in United States
As the number of Hydraulic Hybrid Powertrain equipped motor vehicles has increased, the number of terms, abbreviations, and acronyms which describe various components of these systems has increased. For the sake of industry standardization and to bring some order to the proliferation of such terms, abbreviations, and acronyms, the SAE Truck and Bus Hydraulic Hybrid committee prepared this document.
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Impact of Pad Wear on the Pressure Dynamics of a Vehicle Braking System

Ain Shams University-Salem A. Haggag, Diaa Abidou
Published 2012-09-24 by SAE International in United States
A vehicle braking system is used to provide acceptable drivability of the vehicle and ensure safety in different emergency situations that the vehicle may encounter. The braking system is used also as an integrated sub-system in many other important vehicle driving systems such as traction control, adaptive cruise control, accident avoidance and other vehicle systems in which the braking system plays an important role. This paper is dedicated to provide an accurate and at the same time simple enough hydro-mechanical braking system mathematical model that takes brake pad wear impact on the system pressure dynamics into consideration. A wear simulation procedure based on the concept of Archard's wear law is used and integrated in the nonlinear braking system model with flow compressibility taken into consideration. The presented model simulation results and the experimental tests results show good agreement and validate the confidence in the proposed model. Also, a reduced order model of the full nonlinear one is presented. Both the full nonlinear model and the reduced order model show that increasing in the brake pad…
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Automotive Synchronous Belt Drives

Belt Drive (Automotive) Systems Committee
  • Ground Vehicle Standard
  • J1313_201208
  • Current
Published 2012-08-14 by SAE International in United States
The following information applies to automotive camshaft drives, distributor drives, or other underhood drives that may require synchronization. For other power transmission drives requiring synchronization, refer to Specifications for Drives using Synchronous Belts (MXL, XL, L, H, XH and XXH belt sections) (IP 24/1978), published jointly by the Rubber Manufacturers Association (RMA), the Mechanical Power Transmission Association (MPTA), and the Rubber Association of Canada (RAC).

Drive Quality Evaluation for Chassis Dynamometer Testing

Light Duty Vehicle Performance and Economy Measure Committee
  • Ground Vehicle Standard
  • J2951_201111
  • Historical
Published 2011-11-30 by SAE International in United States
This SAE Recommended Practice establishes uniform procedures for evaluating conformity between the actual and target drive speeds for chassis dynamometer testing utilizing standard fuel economy and emissions drive schedules.

Development of One Motor Type Electric Vehicle Drive System

Yoshinori Itakura, Fumihiro Isobe, Yusuke Oosumi, Guodong Li
  • Technical Paper
  • 2011-08-0606
Published 2011-10-12 by Society of Automotive Engineers of Japan in Japan
In order to increase the cruising range per charge of one-motor type electric vehicle by improving the powertrain efficiency, "One-Motor Type Electric Vehicle Drive System" involving a 2-speed transmission has been developed. For downsizing and lightening the transmission with keeping high torque capability, two-way roller clutch as the shift mechanism was adopted. This paper describes the composition of developed system, the structure of the transmission, the principle of gearshift, and the result of gear-shifted examination on the test bench and the test vehicle.