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Wiring Harness Optimization towards Wireless Vehicle

Eicher Motors Limited-Nikhil Baluja
  • Technical Paper
  • 2019-28-2530
To be published on 2019-11-21 by SAE International in United States
Paper Title - Wiring Harness Optimization towards Wireless vehicle Research and/or Engineering Questions/Objective (maximum 100 words)  In current scenario, wiring harness plays a vital role in inter-connecting electrical & electronic components fitted all across the vehicle.  As per cable standard, DIN 72551 or ISO 6722, copper conductors being used in stranded wires against cable cross-section & corresponding weight.  While going complete wire-less requires each component to have its own battery, ground, transmitter & receiver which indeed is a very costly affair to be employed in vehicle as huge development cost is required.  Here I'm suggesting an innovative method to make a vehicle apparently Wire-Less by creating local clusters connected to each other via conventional wiring harness & wire-less module.  Such method will apparently give a look of Wire-less vehicle itself & better advantages in terms of installation, service, troubleshooting, uptime & customer delight.  Moreover, direct benefits of Cost, Weight, FE will also be achieved. Methodology (maximum 150 words) # To start with this technology, I've divided it in different…
 

Gradationally Controlled Voltage Inverter for More Electric Aircrafts

IHI Corporation-Hitoshi Oyori
Mitsubishi Electric Corp.-Tetsuya Kojima, Masahiro Sugahara, Yusuke Shirouchi, Hisatoshi Fukumoto, Akihiko Iwata
  • Technical Paper
  • 2019-01-1913
To be published on 2019-09-16 by SAE International in United States
Over recent decades, there has been a lot of progress toward a more electric aircraft (MEA) to reduce emissions and fuel consumption. In MEAs, many subsystems that previously used hydraulic or pneumatic power have been replaced by electrical systems with inverters and electrical machines. Therefore, MEAs reduce the weight, i.e. fuel consumption, and maintenance cost. To achieve advanced electrical systems, the weight of inverters has significant importance. In this work, a gradationally controlled voltage (GCV) inverter is proposed to reduce the weight and enhance reliability. A GCV inverter can supply gradational quasi-sinusoidal voltages combining two different voltages from a 3-phase 3-level (main) inverter and three single-phase H-bridge (sub) inverters. A dc power supply is required only for the main inverter. A main inverter with Si-IGBTs supplies the fundamental voltage by only one switching in the fundamental period. Consequently, the switching loss is minimized and hence the weight of cooling systems can be reduced. Sub inverters, which have the half of dc-link voltage of the main inverter, employ SiC-MOSFETs with higher switching frequency and compensate for…
 

Modelling of a Spark Ignition Engine with Turbo-Generator for Energy Recovery

Istituto Motori CNR - Napoli-Luigi De Simio, Sabato Iannaccone
NETCOM Group - Napoli-Fabio Arminio
  • Technical Paper
  • 2019-24-0084
To be published on 2019-09-09 by SAE International in United States
Increasingly stringent regulations in the field of pollutant and CO2 are forcing engine manufacturers to adopt new solutions to contain exhaust emissions, such as Hybrid Electric Vehicles (HEV) or Full Electric Vehicles (FEV). Still far from the wide diffusion of FEV limited from electrochemical storage systems together with the difficulty of creating adequate infrastructure distributed throughout the territory to recharging batteries, at present HEVs seems to be a better solution. The hybrid vehicle is already able to guarantee satisfactory autonomy and low pollution levels by combining the advantages offered by the two technologies of thermal and electric propulsion. Currently on the market there are several types of hybrid vehicles, with different degree of hybridization (depending of the electric power of the motor generators installed), capacity to store electricity and type of scheme constructive adopted for the integration between the thermal engine and the electric machines. A particular interest is getting the mild-hybrid (or light hybridization) and the micro-hybrid (or minimum hybridization) with 48V electrical system added to the common 12V one. In this field, a…
 

Wire, Electrical, Crosslinked Polyalkene, Crosslinked Alkane-Imide Polymer, or Polyarlyene Insulated, Copper or Copper Alloy

AE-8D Wire and Cable Committee
  • Aerospace Standard
  • AS81044B
  • Current
Published 2019-07-08 by SAE International in United States
AS81044 covers single conductor electric wires made as specified in the applicable detail specification with tin-coated, silver-coated, or nickel-coated copper or copper alloy conductors insulated with crosslinked polyalkene, crosslinked alkane-imide polymer, or polyarylene. The crosslinked polyalkene, crosslinked alkane-imide polymer, or polyarylene may be used alone or in combination with other insulation materials as specified in the detail specification.
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LED Signal and Marking Lighting Devices

Signaling and Marking Devices Stds Comm
  • Ground Vehicle Standard
  • J1889_201907
  • Current
Published 2019-07-01 by SAE International in United States
This SAE Recommended Practice applies to functions of motor vehicle signaling and marking lighting devices which use light emitting diodes (LEDs) as light sources. This report provides test methods, requirements, and guidelines applicable to the special characteristics of LED lighting devices. This Recommended Practice is in addition to those required for devices designed with incandescent light sources. This report is intended to be a guide to standard practice and is subject to change to reflect additional experience and technical advances.
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Rotary Electrical Contact

  • Magazine Article
  • TBMG-34620
Published 2019-06-01 by Tech Briefs Media Group in United States

Researchers have developed a fundamentally new type of rotary electrical contact that addresses the two limitations of conventional brush/slip ring technology: 1) short operating lifetime due to sliding-contact wear, and 2) electrical arcing associated with contact bounce.

 

Standardized Symbols for Electrical Circuit Diagrams

Truck and Bus Electrical Systems Committee
  • Ground Vehicle Standard
  • J2221_201905
  • Current
Published 2019-05-16 by SAE International in United States
This SAE Recommended Practice identifies graphic symbols used in electrical circuit diagrams. The symbols aid troubleshooting electrical systems.
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Electrical Charging Systems for Off-Road Work Machines

CTTC C2, Electrical Components and Systems
  • Ground Vehicle Standard
  • J180_201905
  • Current
Published 2019-05-10 by SAE International in United States
This SAE standard describes alternator physical, performance, and application requirements for heavy-duty electrical charging systems for off-road work machines, including those defined in SAE J1116.
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CABLE, LIGHTWEIGHT OPTIMIZED HIGH SPEED DATA QUAD, 110 OHM, 200 °C

AE-8D Wire and Cable Committee
  • Aerospace Standard
  • AS6070/8A
  • Current
Published 2019-05-07 by SAE International in United States
No Abstract Available.
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CIRCUIT BREAKER - AIRCRAFT, TRIP-FREE, PUSH-PULL, 1/2 THRU 25 AMPS, TYPE 1 -55 THRU +121 °C

AE-7P Protective and Control Devices
  • Aerospace Standard
  • AS33201B
  • Current
Published 2019-04-25 by SAE International in United States
No Abstract Available.
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