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2015-09-06
Technical Paper
2015-24-2544
Fernando Ortenzi, Giovanni Pede, Pierluigi Antonini
Within the “Industria 2015” Italian framework program, the HI-ZEV project has the aim to develop two high performance vehicles: one full electric and one hybrid. The hybrid vehicle is a sport car with an internal combustion engine with a maximum power of 300 kW and an electric motor with a maximum power of 150 kW. It is equipped with a 400 V, 15 Ah storage system. Special batteries are required due to the high values of discharge current needed to supply the electric subsystem (up to 25 times the nominal current). Also a dedicated cooling system has been designed, to avoid a dangerous rising temperature, due to such high currents. The cells used have been the Demon 5Ah OCCL (Oxygen-Cobalt-Carbon-Li-Ion technology). Every single module is composed by 6 cells in series with 22.5V of nominal voltage, while the battery pack is made with 18 modules in series and 3 in parallel.
2015-07-01
Journal Article
2015-01-9142
Henry A. Catherino, Fred Feres
Abstract Deep charge and discharge cycling of 24 Volt battery strings composed of two 12 Volt VRLA batteries wired in series affects reliability and life expectancy. This is a matter of interest in vehicle power source applications. These cycles include those specific operational cases requiring the delivery of the full storage capacity during discharge. The concern here is related to applications where batteries serve as a primary power source and the energy content is an issue. It is a common practice for deep cycling a 24 volt battery string to simply add the specified limit voltages during charge and discharge for the individual 12 Volt batteries. In reality, the 12 Volt batteries have an inherent capacity variability and are not identical in their performance characteristics. The actual voltages of the individual 12 Volt batteries are not identical.
2015-06-29
WIP Standard
J1555
This SAE Recommended Practice applies to all portions of the vehicle, but design efforts should focus on components and systems with the highest contribution to the overall average repair cost (see 3.7). The costs to be minimized include not only insurance premiums, but also out-of-pocket costs incurred by the owner. Damageability, repairability, serviceability and diagnostics are inter-related. Some repairability, serviceability and diagnostics operations may be required for collision or comprehensive loss-related causes only, some operations for non-collision-related causes only (warranty, scheduled maintenance, non-scheduled maintenance, etc.), and some for both causes. The scope of this document deals with only those operations that involve collision and comprehensive insurance loss repairs.
2015-06-28
Standard
AS28938A
SCOPE IS UNAVAILABLE.
2015-06-28
Standard
AS81969/29
SCOPE IS UNAVAILABLE.
2015-06-28
Standard
AS81969/27
SCOPE IS UNAVAILABLE.
2015-06-22
Standard
AS81969/15
SCOPE IS UNAVAILABLE.
2015-06-22
Standard
AS5372/1
SCOPE IS UNAVAILABLE.
2015-06-22
WIP Standard
J1939DA
This document is intended to supplement the J1939 documents by offering the J1939 information in a form that can be sorted and search for easier use. The J1939 Digital Annex, introduced in August 2013, offers key J1939 technical data in an Electronic Spreadsheet that can be easily searched, sorted, and adapted to other formats. J1939DA contains all of the SPNs (parameters), PGNs (messages), and other J1939 data previously published in the SAE J1939 top level document. J1939DA also contains all of the SLOTs, Manufacturer ID Codes, NAME Functions, and Preferred Addresses previously published in the SAE J1939 top level and the J1939-71 document. J1939DA contains the complete technical details for all of the SPNs and PGNs previously published in the SAE J1939-71 document. It also includes the supporting descriptions and figures previously published in the SAE J1939-71 document.
2015-06-18
WIP Standard
AS33700B
No scope available.
2015-06-18
WIP Standard
AS33703B
No scope available.
2015-06-15
Technical Paper
2015-01-2095
Wolfgang Hassler, Reinhard F.A. Puffing, Andreas Tramposch
Abstract This paper deals with thermal ice protection of electrically heated restraining grids designed for applications in the environmental control system (ECS) of passenger aircraft. The restraining grids described in the paper consist of strung, electrically insulated wire and are - in certain operation modes of the ECS - exposed to an airstream containing supercooled water droplets and/or ice particles. Heat is generated in the wire by an electric current, and the temperature of the wire is controlled with the aid of an electronic control system. A substantial question for laying out the controller and for operating the grids is the following: What minimum heating power is required to prevent ice accretion on the surface of the wire, i.e., what is the least heating power that is necessary to keep a grid being exposed to specific icing conditions devoid of ice? This problem is studied for a simple model system first and is then examined for restraining grids.
2015-06-12
WIP Standard
AIR6511
This document shall provide the fundamental safety considerations in pursuing the design of a 48/60 VDC aircraft electrical system. This departure from the current standard of 28 VDC will provide the benefits of reducing the operational weight and fuel consumption of the aircraft by increasing the DC system voltage level.
2015-06-12
Standard
AIR6282
This standard provides a cross reference detailing current test methods used in the qualification processes of fiber optic connectors, termini and cables for aerospace, telecommunications and naval applications. The cross-reference allows the end user to select the test methods most suitable for qualifying a component, or to identify alternative test methods where a specific test is not defined in a referenced document. The standard also provides information on what area each type of referenced document has been developed for.
2015-06-12
Standard
AS28937A
SCOPE IS UNAVAILABLE.
2015-06-12
Standard
AS81969/9
SCOPE IS UNAVAILABLE.
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