The electric vehicle business will approach a massive $500 billion in 2025 with the traction motors segment capturing over $25 billion. Traction motors propelling land, water and air vehicles along can consist of one inboard motor or - an increasing trend - more than one near the wheels, in the wheels, in the transmission or ganged to get extra power. Complex trends in this industry are explained with this updated report, and future winning suppliers are identified alongside market forecasts. The information is especially important as hybrid vehicles may have the electric motor near the conventional engine or its exhaust, and this may mean they need to tolerate temperatures never before encountered in pure electric vehicles. Motors for highly price-sensitive markets such as electric bikes, scooters, e-rickshaws and micro EVs avoid the price hikes of neodymium and other rare earths in the magnets.
Presentation will concentrate on a brief overview of SAE International including history, international focus and SAE electro-mobility ground vehicle standards development activities. The new era of mobility and the driving forces behind it including converging technologies and today�s drive toward �green� will be discussed. Also, standards and technology enablers for vehicle electrification including, the global landscape for EV charging standards and next generation charging method approaches will be reviewed. Additionally, an overview of SAE global EV Battery Standards and activities including industry/government collaborative efforts to develop lithium ion rechargeable energy storage system safety standards will be provided. Presenter Keith Wilson, SAE International
It is a challenge to write a good motor specification. Typical spec. problems are omitted or ambiguous requirements, or overly tight tolerances that drive up cost but not value. These problems create hidden penalties in cost, performance, reliability, and development time. This presentation will describe common problems in traction motor specifications and associated penalties, as well as recommendations to avoid them. Topics will include spec.?s for demagnetization, mechanical considerations, torque ripple, performance, and others. Presenter David A. Fulton, Remy Inc.
This paper proposes a current limits distribution control strategy for a parallel hybrid electric vehicle (parallel HEV) which includes an advanced powertrain concept with two electrical driving axles. One of the difficulties of an HEV powertrain with two electrical driving axles is the ability to distribute the electrical current of one high voltage battery appropriately to the two independent electrical motors. Depending on the vehicle driving condition (i.e., car maneuver) or the maximization of the entire efficiency chain of the system, a suitable control strategy is necessary. We propose an input-output feedback linearization strategy to cope with the nonlinear system subject to input constraints. This approach needs an external, state dependent saturation element, which translates the state dependent control input saturation to the new feedback linearizing input and therefore preserves the properties of the differential geometric framework.
ISO 26262 is the actual standard for Functional Safety of automotive E/E (Electric/Electronic) systems. One of the challenges in the application of the standard is the distribution of safety related activities among the participants in the supply chain. In this paper, the concept of a Safety Element out of Context (SEooC) development will be analyzed showing its current problematic aspects and difficulties in implementing such an approach in a concrete typical automotive development flow with different participants (e.g. from OEM, tier 1 to semiconductor supplier) in the supply chain. The discussed aspects focus on the functional safety requirements of generic hardware and software development across the supply chain where the final integration of the developed element is not known at design time and therefore an assumption based mechanism shall be used.
The 14 papers in this technical paper collection address fuel cell systems; the status of fuel cell vehicle development; hydrogen fuel cell vehicle fuel economy, fleet monitoring and hydrogen fueling; and modeling of fuel cell systems.
This technical collection features 23 technical papers published between 1998-2010 covering topics such as telematics, driver assistance systems, driver fatigue, human machine interfaces, and crash prevention systems.
Fuel cell hybrid electric propulsion for automotive applications has the highest potential to offer both zero emissions and long range vehicles while being able to 100 percent refuel in a matter of minutes. The 11 papers in this technical paper collection cover advances in fuel cell powertrain power density; cold start optimization; hydrogen storage and fueling simulation. Modeling, simulation and testing of PEM fuel cell components and systems are also covered.
Power electronics and electric motors are essential for improving vehicle efficiency through drivetrain electrification. This technical paper collection covers technologies that support high efficiency, high power density, and low cost motors and power modules are required for the success of vehicle electrification.
The 11 papers in this technical paper collection covers technologies that support high efficiency, how power density, and low cost motors and power modules required for the success of vehicle electrication.
This technical paper collection covers powertrain control processes related to achieving stringent market fuel economy, emissions, performance, reliability, and quality demands of hybrid and electric powertrains. Topics include the control, calibration, and diagnostics of the engine, powertrain, and supporting electromechanical subsystems related to energy management.
Power electronics and electric motors are essential for improving vehicle efficiency through drivetrain electrification. Technologies that support high efficiency, high power density, and low cost motors and power modules are required for the success of vehicle electrification.
Power electronics and electric motors are essential for improving vehicle efficiency through drivetrain electrification. Technologies that support high efficiency, high power density, and low cost motors and power modules are required for the success of vehicle electrification.
The 11 papers in this technical paper collection cover development of integrated modular motor drive; a current source inverter based motor drive for EV/HEV applications; high power density motor and inverter for RWD hybrid vehicles; wireless power transfer for electric vehicles; and more.