1st Edition

Driveline Systems of Ground Vehicles Theory and Design

    792 Pages 518 B/W Illustrations
    by CRC Press

    "With this book, Prof. Dr. Vantsevich brings a tremendous contribution to the field of Automotive Transmission and Driveline Engineering, including his innovative methods for optimum driveline synthesis, as well as his experience with the development of various hardware solutions, from the basic limited slip differentials to the most sophisticated mechatronic systems."

    —Dr.-Ing. Mircea Gradu

    Director, Transmission and Driveline Engineering

    Head, Virtual Analysis Tools

    Chrysler Group LLC

     

    Now that vehicles with four and more driving wheels are firmly ensconced in the consumer market, they must provide energy/fuel-saving benefits and improved operational quality including terrain mobility, traction and velocity properties, turnability, and stability of motion. A first-of-its-kind resource, Driveline Systems of Ground Vehicles: Theory and Design presents a comprehensive and analytical treatment of driveline research, design, and tests based on energy efficiency, vehicle dynamics, and operational properties requirements.

    This volume addresses fundamental engineering problems including how to investigate the effect of different driveline systems on the properties of vehicles and how to determined the optimal characteristics of the driveline system and its power-dividing units (PDUs) and design it for a specific vehicle to ensure high level of vehicle dynamics, energy efficiency, and performance. The authors develop an analytical apparatus for math modeling of driveline systems that can be compiled from different types of PDUs. They also introduce methodologies for the synthesis of optimal characteristics of PDUs for different types of vehicles.

    Structured to be useful to engineers of all levels of experience, university professors and graduate students, the book is based on the R&D projects conducted by the authors. It explores intriguing engineering dilemmas such as how to achieve higher energy and fuel efficiency by driving either all the wheels or not all the wheels, solve oversteering issues by managing wheel power distribution, and many other technical problems.

    Driveline Systems and Vehicle Performance

    Brief Review of Driveline Systems History

    Classification of Driveline Systems and Power Dividing Units

    Wheel Dynamics and Energy Efficiency

    Vehicle Energy=Fuel Efficiency and Driveline Systems Design

    Vehicle Performance and Driveline Systems Design

    Principles of Driveline System Design

     

    Interwheel and Interaxle Open and Lockable Differentials

    Kinematics and Dynamics of Differentials: The Gear-Ratio Concept

    Kinematics of a Vehicle with an Interaxle Differential

    Tooth Forces in Bevel-Gear Differentials

    Robustness of Differentials

    Design of Axle=Interwheel Differentials

    Design of Interaxle Differentials and Transfer Cases

    Designing Locking Devices

    Wheel Power Distribution and Vehicle Performance

    Optimal and Reasonable Differential Gear Ratios: Control Principles

     

    Automatic and Manual Positively Engaged Power-Dividing Units

    Designs of Power-Dividing Units

    Kinematic Discrepancy and Generalized Vehicle Parameters

    Wheel Slips and Circumferential Wheel Forces

    Wheel Power Distributions and Vehicle Energy=Fuel Efficiency

    Wheel Power Distribution and Vehicle Performance

    Optimal and Reasonable Kinematic Discrepancy: Control Principles

     

    Limited Slip Differentials

    Torque Biasing and Locking Performance

    Disk Differentials without Additional Lockers

    Disk Differentials with Cam Lockers

    Disk Differentials with V-Lockers

    Worm-Gear Differentials

    Cam-Plunger Differentials

    Torque Sensitive Differentials

    Speed Sensitive Differentials

    Force Fluctuations in Disk Differentials

    Tractive Performance and Yaw Moment of a Drive Axle

    Asymmetrical Interaxle Differentials

     

    Free-Running Differentials and Viscous Clutches

    Design and Operating Principles of Free-Running Differentials

    Applications of Free-Running Differentials

    Viscous Clutches: Operation and Design Aspects

     

    Combined Automated Mechanical Driveline Systems

    Vehicle Operational Properties

    A Method of Synthesizing Driveline Systems with Optimal Properties

    Objective Function Analysis

    Synthesis of the Properties of Interwheel Power-Dividing Units

    Synthesis of Properties of Interaxle Power-Dividing Units

    Synthesis of Properties of Interwheel and Interaxle Power-Dividing Units

     

    Mechatronic Driveline Systems

    Simple, Combined, and Integrated Driveline Systems—A Brief Overview

    Inverse Wheel Dynamics and Control

    Proactive Assessment of Terrain Conditions

    Kinematics and Dynamics of Mechanical Subsystems

    Design of Simple and Combined Driveline Systems

    Design of Integrated Driveline Systems

    Hybrid Driveline Systems

     

    Testing of Driveline Systems and Multiwheel Drive Vehicles

    Laboratory Studies of the Locking Performance of Differentials

    Laboratory Testing of Friction Clutches of Differentials

    Laboratory Tests of Differential Lubrication Systems

    Field and Road Tests of Wheeled Vehicles

    Biography

    Vladimir V. Vantsevich is a tenured full professor in mechanical engineering and the director of the Master of Science in Mechatronic Systems Engineering Program at Lawrence Technological University. Alexandr F. Andreev and Viachaslau I. Kabanau are both associate professors in the Tractor Engineering Department at Belarus National Technical University.