This document covers all metal, castellated, self-locking nuts made from alloy steel of the types identified under the Unified Numbering System as UNS G41300 and UNS G43400.
In the context of distributed-driven electric vehicles, the temperature of permanent magnet in-wheel motors tends to rise during prolonged and overload operating conditions. This temperature increase can lead to parameter drift in the motors, resulting in a decline in motor control performance, and in severe cases, motor failures. To address these issues, this paper establishes a motor parameter identification model based on the dq-axis stator current equation of the permanent magnet in-wheel motor. An improved Particle Swarm Optimization PSO algorithm is introduced to identify parameters such as motor resistance, inductance, and magnetic flux. In contrast to traditional parameter identification algorithms based on mathematical models, the improved PSO algorithm can simultaneously identify multiple parameters without encountering rank deficiency issues.
This specification covers an aluminum-lithium alloy in the form of plate 0.500 to 8.000 inches (12.70 to 203.20 mm), inclusive, in thickness (see 8.5).
This specification establishes the engineering requirements for producing an acid-type, anodic coating on magnesium alloys and the properties of the coating.
This specification covers a corrosion- and heat-resistant nickel alloy in the form of bars, forgings, and flash-welded rings up to 4.00 inches (101.6 mm), inclusive, in nominal thickness or distance between parallel sides and having a maximum cross-sectional area of less than 12.6 square inches (81 cm2). Stock for forging or flash-welded rings may be of any size and condition as ordered.
This specification covers an aluminum alloy in the form of extruded profiles (shapes) 0.500 to 1.500 inch (12.7 to 38.1 mm), inclusive, in nominal thickness, and having a maximum cross-sectional area of 20 square inches (129 cm2) and a maximum circle size of 10 inches (254 mm) (see 8.7).
This document is an optional addition to SAE J3068 that adds additional communications (using LIN-CP) between the EV and SE that provide capabilities valuable to commercial fleets. These include the ability of the EV and SE to exchange unique identifiers, to establish which EV is connected to which SE, and to specify requirements for the next trip.
This specification covers an aluminum alloy in the form of die and hand forgings 6.000 inches (152.00 mm) and under in nominal thickness at time of heat treatment (see 8.6).
In a world where innovation and sustainability are paramount, Fundamentals of Design of Experiments for Automotive Engineering: Volume I serves as a definitive guide to harnessing the power of statistical thinking in product development. As first of four volumes in SAE International’s DOE for Product Reliability Growth series, this book presents a practical, application-focused approach by emphasizing DOE as a dynamic tool for automotive engineers. It showcases real-world examples, demonstrating how process improvements and system optimizations can significantly enhance product reliability. The author, Young Chiang, leverages extensive product development expertise to present a comprehensive process that ensures product performance and reliability throughout its entire lifecycle. Whether individuals are involved in research, design, testing, manufacturing, or marketing, this essential reference equips them with the skills needed to excel in their respective roles.