hybrid vehicles
Articles About hybrid vehicles
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The automotive industry is on the precipice of a shift. Here's what the future looks like and what you need to know to prepare for it.
2 Electric Vehicles Need Quieter Gears (October 2014)
For Mark Findlay of UK specialist driveline consultancy Drive System Design, reducing gear noise to suit the low noise levels in an electric vehicle cabin has meant throwing away the rule book.
3 Changing Technologies, Changing Perspectives (February 2017)
A Conversation with Jeff Hemphill, CTO at Schaeffler Group USA Inc about mechatronic solutions and the electric vehicles of tomorrow.
4 The One-Stop Shop for Automatic, HEV and EV Drives (April 2018)
CTI Symposium USA Examines North American Transmission Market Strategies
5 Hands-Free Driving in the 1950s (April 2019)
Yes, the headline is correct: Autonomous vehicles are not a new idea. In fact, in the 1950s, handsfree driving so interested General Motors engineers that they designed a concept car for it. And in 1956, at its own auto show, the GM Motorama, the automaker unveiled the car, the Firebird II.
6 Making Sense Out of Autonomous Vehicles (March 2019)
Autonomous vehicles (AVs), in particular, are set to utilize sensors for a multiple array of new technologies. In fact, lidar sensors may be the key to unlocking the potential of driverless cars in the future.
7 Braking Toward the Future (August 2012)
In the past decade, electrohydraulic braking systems--including ABS and traction control--have grown increasingly popular, due largely to the vehicle design flexibility and performance advantages they offer. The industry has seen several other instances of intelligent machine controls, unrelated to braking, over the years as well. But what all of these technologies have typically had in common is that theyâ™ve existed as standalone, point-to-point functions that have not been integrated together. The present and future of braking is all about taking the next logical step--getting fully connected and finding ways to embed intelligence throughout a machine.
8 Hybrid Transverse Flux Magnetic Motors - How to Measure Parameters (September 2020)
These versatile, low-cost and high-torque motors may be used open loop or as full servos - and several levels in between. The motor stator laminate designs divide these motors into those optimized for full stepping, and those optimized for micro stepping and servo operation. These differences can be easily measured with basic meters and oscilloscopes. Motor to motor variations can also be easily measured, and motor inductance at nominal speed and current can also be determined.
9 Vibration and Operational Characteristics of a Composite-Steel (Hybrid) Gear (December 2017)
Free vibration and dynamic operation testing of hybrid gears at NASA Glenn Spur Gear Fatigue Test Facility; hybrid gears are compared to their steel counterparts.
10 Facing the Challenges of the Current Hybrid Electric Drivetrain (April 2009)
Presented is a high-phase, order-induction motor drive for use in a series hybrid architecture. This solution overcomes numerous compromises in current hybrid powertrain designs. Notably, it allows for a vehicle that is competitive in terms of performance and cost.
11 Hybrid Transverse Magnetic Flux Motors - AKA Stepper Motors and Hybrid Servos (March 2020)
This is the first of a series of articles on permanent magnet transverse magnetic flux motors - AKA step motors. These articles will be covering the development history and the various drive technologies used with these motors - both open and closed loop.
12 Transverse Magnet Flux AKA Hybrid Step Motor Driver Techniques (June 2020)
The transverse flux permanent magnet motor -- also known as a hybrid step motor or hybrid servo motor -- has a wide range of performances, depending upon how you drive these motors, and whether you operate them in open loop or one of the many variants of closed loop methods you use. In this third installment we will cover some of the many ways to drive these motors, as well as how these choices affect the performance of these motors.
13 Closing the Loop around a Transverse Flux Hybrid Step Motor (August 2020)
Transverse magnetic flux motors -- also known as step motors -- become Hybrid Servos when you operate them closed loop. This is the same transformation that happens between running a 3-phase synchronous motor from line voltage as opposed to running it closed loop as a brushless servo. In the case of hybrid motors, there are many degrees of what is advertised as "closed loop," and thus significant differences in the performance improvements seen.
14 Open Loop Step Motor Error Sources - What Closing the Loop Corrects (December 2021)
A look at several Two-Phase Hybrid Step Motors and their dominant error sources, and comment on how the errors are overcome by true servo operation of these motors.