FlexRay™ Electrical Physical Layer

2013 ◽  
pp. 117-175
Author(s):  
Jürgen Minuth
Keyword(s):  
Communication System ◽  
State Of The Art ◽  
Physical Layer ◽  
The State ◽  
Electronic Control ◽  
Cruise Control ◽  
Active Components ◽  
Electronic Stability Program ◽  
Passive Components ◽  
Control Units

Modern medium and high end vehicles are no longer imaginable without using technologies to broadcast local available data. The speed information for example is used by many well known functions: the anti blocking system, the radio, the dashboard, the cruise control, the electronic stability program, etc. Usually, this data is distributed among vehicle’s electronic control units by various serial bus systems. The succeeding sections introduce the automotive communication system named FlexRay™. The development of FlexRay™ had been initialized by requirements expected for drive-by-wire systems. The content is focused on its electrical physical layer beginning with active components like bus interfaces as well as passive components like common mode filters and bus-cables. Comparisons to the state of the art systems CAN and LIN are used to support the comprehensibility.

La société civile au Liban: ses forces et ses faiblesses

2014 ◽  
Vol 94 (2) ◽  
pp. 285-301
Author(s):  
Fadia Kiwan
Keyword(s):  
Civil Society ◽  
Political Change ◽  
State Of The Art ◽  
Critical Mass ◽  
The State ◽  
Active Components ◽  
The Government ◽  
Société Civile

This paper investigates the multiple faces of Lebanese civil society, particularly focusing on the evolutions of the recent years. It reconstructs the state of the art in this field in order to see if Lebanese civil society could represent an alternative to ‘communitarian society’ and to the government of the traditional elites. The analysis starts from some relevant questions: which are, today, the most active components of Lebanese civil society and to which extent are they able to trigger change? To what extent the participation of the associations in Lebanon could be considered a mean of democratizationor, at least, a mean of political change? Was it possible for the civil society’s Organisations crossing the border lines of communitarianism, to develop a critical mass for change?The domestic and regional evolutions show a very complicated panorama where it seems very difficult to get out of confessionalism.

New Voltage-Mode Sinusoidal Oscillators Using VDIBAs

2019 ◽  
Vol 29 (04) ◽  
pp. 2050052
Author(s):  
San-Fu Wang ◽  
Hua-Pin Chen
Keyword(s):  
Theoretical Analysis ◽  
Bias Current ◽  
Electronic Control ◽  
Active Components ◽  
Passive Components ◽  
Voltage Mode ◽  
Sinusoidal Oscillators ◽  
Oscillation Condition ◽  
Condition Of Oscillation ◽  
Minimum Number

This paper presents two new voltage-mode sinusoidal oscillators based on voltage differencing inverting buffered amplifier (VDIBA). The first proposed circuit exhibits independent and electronic control of oscillation condition by using the bias current of the VDIBA. The proposed configuration contains only single VDIBA, two grounded capacitors and two resistors, which are the least number of active components and the minimum number of passive components necessary for realizing voltage-mode oscillator topology. The second proposed circuit exhibits independent and electronic control on the condition of oscillation without affecting the oscillation frequency by adjusting the separate bias currents of the VDIBAs. The proposed configuration contains two VDIBAs, two grounded capacitors and one resistor, which can provide four quadrature voltage outputs simultaneously. Both proposed circuits enjoy only two grounded capacitors, which are suitable for monolithic integration. HSpice simulations and experimental results are included to confirm the theoretical analysis.

scholarly journals Performance Evaluation of Attribute-Based Encryption in Automotive Embedded Platform for Secure Software Over-The-Air Update

Sensors ◽  
2021 ◽  
Vol 21 (2) ◽  
pp. 515
Author(s):  
Michele La Manna ◽  
Luigi Treccozzi ◽  
Pericle Perazzo ◽  
Sergio Saponara ◽  
Gianluca Dini
Keyword(s):  
State Of The Art ◽  
Computation Time ◽  
Minimum Cost ◽  
Electronic Control ◽  
Embedded Platform ◽  
Automotive Electronic ◽  
Control Units ◽  
Attribute Based Encryption ◽  
Evaluation Board ◽  
Cryptographic Scheme

This paper aims to show that it is possible to improve security for over the air update functionalities in an automotive scenario through the use of a cryptographic scheme, called “Attribute-Based-Encryption” (ABE), which grants confidentiality to the software/firmware update done Over The Air (OTA). We demonstrate that ABE is seamlessly integrable into the state of the art solutions regarding the OTA update by showing that the overhead of the ABE integration in terms of computation time and its storage is negligible w.r.t. the other overheads that are introduced by the OTA process, also proving that security can be enhanced with a minimum cost. In order to support our claim, we report the experimental results of an implementation of the proposed ABE OTA technique on a Xilinx ZCU102 evaluation board, which is an automotive-oriented HW/SW platform that is equipped with a Zynq UltraScale+ MPSoC chip that is representative of the computing capability of real automotive Electronic Control Units (ECUs).

Integrated Passive Devices and Switching Circuit Design for a 3D DC/DC Converter up to 60 V

2019 ◽  
Vol 29 (03) ◽  
pp. 2050039
Author(s):  
Sergio Saponara ◽  
Gabriele Ciarpi ◽  
Tobias Erlbacher ◽  
Gudrun Rattmann
Keyword(s):  
State Of The Art ◽  
Input Voltage ◽  
The State ◽  
Single Chip ◽  
Voltage Range ◽  
Passive Devices ◽  
Control Units ◽  
Control Circuits ◽  
Silicon Vias ◽  
Work Up

This work presents the design and test of a switched-cap 3D DC/DC converter able to work up to 60[Formula: see text]V. The switches and the control circuits are integrated single-chip in a high-voltage (HV) MOS technology, and the passive devices are stacked on top of the chip. As an innovation versus the state-of-the-art, the work first presents the design of integrated passive devices, based on through silicon vias (TSV) MOS-compatible technology, which are suitable for switching converter applications up to 60[Formula: see text]V. Then, the implementation and experimental characterization of the switched-cap 3D DC/DC is proposed, with the silicon TSV capacitors stacked on top of the 0.35[Formula: see text][Formula: see text]m HV-MOS die. Compared with the state-of-the-art, the proposed 3D DC/DC converter is a compact circuit, able to directly regulate a wide input voltage range (from 6[Formula: see text]V to 60[Formula: see text]V) to a 5[Formula: see text]V, 2[Formula: see text]W output. Hence, it is suitable to supply low-power loads, such as control units and/or sensors, directly from the 48[Formula: see text]V power line available in hybrid vehicles or telecom and networking systems.

Practical Picture Processing

1974 ◽  
Vol 32 ◽  
pp. 338-339
Author(s):  
T. A. Welton
Keyword(s):  
Radiation Damage ◽  
Coherence Length ◽  
Spatial Information ◽  
State Of The Art ◽  
Coherent Radiation ◽  
The State ◽  
Energy Spread ◽  
Electron Micrograph ◽  
Picture Processing ◽  
Molecular Skeleton

Various authors have emphasized the spatial information resident in an electron micrograph taken with adequately coherent radiation. In view of the completion of at least one such instrument, this opportunity is taken to summarize the state of the art of processing such micrographs. We use the usual symbols for the aberration coefficients, and supplement these with £ and 6 for the transverse coherence length and the fractional energy spread respectively. He also assume a weak, biologically interesting sample, with principal interest lying in the molecular skeleton remaining after obvious hydrogen loss and other radiation damage has occurred.

Hypothesis-Evidence Coordination: The State of the Art

2003 ◽  
Vol 48 (6) ◽  
pp. 826-829 ◽  
Author(s):  
Eric Amsel
Keyword(s):  
State Of The Art ◽  
The State

The State of the Art

1968 ◽  
Vol 13 (9) ◽  
pp. 479-480
Author(s):  
LEWIS PETRINOVICH
Keyword(s):  
State Of The Art ◽  
The State

Needs Assessment: The State of the Art

1984 ◽  
Vol 29 (5) ◽  
pp. 426-428
Author(s):  
Anthony R. D'Augelli
Keyword(s):  
Needs Assessment ◽  
State Of The Art ◽  
The State

Biofeedback: The State of the Art

1991 ◽  
Vol 36 (2) ◽  
pp. 140-140
Author(s):  
John A. Corson
Keyword(s):  
State Of The Art ◽  
The State
Sign in / Sign up

Export Citation Format

Share Document