Investigation on the Output Signal of Rotational Speed Sensor for Different Flux Surfaces between Gear Wheel and Sensor

Rotational Speed Sensors are typically used to measure rotational speed in automotive application such as ABS (Anti-lock Braking System), ASR (Anti Slip Regulation) or Gear Box. In terms of application area, rotational speed sensors transmit very important signal from gear wheel to ECU (Electronic Control Units). The output signal of rotational speed sensor (RSS) may not provide exact solution in high speed situation because RSS is a kind of inductive sensor which has discharge and charge time. Thus, response time of RSS may lead a problem for exact speed measurement while the output signal is settling. In this study to evaluate different flux surfaces, both low speed @0.8RPM and high speed @3992 RPM, 6 experiments were performed for normal, convex and concave teeth setups. It has been seen that the output signal form of convex teeth setup is more appropriate than normal teeth setup and concave teeth setup for sinus signal.

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Design and Development of Vehicular Monitoring System for Passenger Car Based on Protocol SAE J1939

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.34-35.1305 ◽

2010 ◽

Vol 34-35 ◽

pp. 1305-1308 ◽

Cited By ~ 1

Author(s):

Guo Hui Zhang ◽

Jian Fang Sun

Keyword(s):

Monitoring System ◽

System Architecture ◽

High Speed ◽

Can Bus ◽

Monitoring Device ◽

Electronic Control ◽

Control Units ◽

Monitoring Software ◽

Share Information

In this paper the system architecture of the vehicular monitoring system based on high speed CAN bus and low speed CAN Bus and SAE J1939 so as to share information between different ECUs (Electronic Control Units) has been designed. Using Visual C++ 6.0, vehicular monitoring software platform has been developed to realize vehicular runtime parameters monitoring, device controllers monitoring and malfunction monitoring. Also a case study has been given, and the results of the system application are reasonable.

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A New Methodology for Implementing the Data Distribution Service on Top of Gigabit Ethernet for Automotive Applications

Journal of Circuits System and Computers ◽

10.1142/s0218126620502102 ◽

2020 ◽

Vol 29 (13) ◽

pp. 2050210

Author(s):

Manel Takrouni ◽

Azer Hasnaoui ◽

Ikbel Mejri ◽

Salem Hasnaoui

Keyword(s):

Real Time ◽

Data Distribution ◽

Critical Time ◽

Automotive Application ◽

Electronic Control ◽

Gigabit Ethernet ◽

Management Group ◽

Control Units ◽

Data Distribution Service

Today’s vehicles have become increasingly complex, as consumers demand more features and better quality in their cars. Most of these new features require additional electronic control units (ECU) and software control, constantly pushing back the limits of existing architectures and design methodologies. Indeed, modern automobiles have a larger number of critical time functions distributed and running simultaneously on each ECU. Data Distribution Service (DDS) is a publish/subscribe middleware specified by the international consortium Object Management Group (OMG), which makes the information available in real time, while offering a rich range of quality of service (QoS) policies. In this paper, we propose a new methodology to integrate DDS in automotive application. We evaluate the performance of our new design by testing the fulfillment of real time QoS requirements. We also compare the performance of the vehicle application when using FlexRay and Ethernet networks. Computations prove that the use of DDS over Gigabit Ethernet (GBE) is promising in the automotive field.

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Independent Velocity Measurement of Small Underwater High-Speed Moving Body Based on External Turbine

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.300-301.967 ◽

2013 ◽

Vol 300-301 ◽

pp. 967-973

Author(s):

Yong Chen ◽

He Zhang ◽

Qi Jiang ◽

De Zhang Shen

Keyword(s):

Rotational Speed ◽

Velocity Measurement ◽

High Speed ◽

The Body ◽

Dynamics Simulation ◽

Signal Process ◽

Speed Measurement ◽

Moving Body ◽

The Relationship ◽

Process Method

Combining with rotational speed measurement methods and underwater environment particularity, an independent velocity measurement scheme applicable to small underwater high-speed moving body was proposed in this paper. The structural design of the measurement device was designed and signal process method was improved, and the relationship between turbine rotational speed and speed of the body was obtained by FLUNET dynamics simulation and water tunnel experiments. Finally, the simulation and experimental results were analyzed. The results show that this method is effective and feasible within a certain range of accuracy.

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Research on Engine Cranking Process in Downhill Braking Condition for an Electric Drive Underground Dump Truck

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.364.92 ◽

2013 ◽

Vol 364 ◽

pp. 92-96 ◽

Cited By ~ 2

Author(s):

Shu Yang Zheng ◽

Chun Jin

Keyword(s):

Electric Drive ◽

High Speed ◽

Synchronous Motor ◽

Dump Truck ◽

Zero Crossing ◽

Energy Feedback ◽

Braking System ◽

Speed Sensor ◽

Ac Power ◽

Searching Method

The retarder braking system of an electric drive dump truck is introduced in this paper. When the truck is going downhill at a low speed, part of the braking energy is consumed by braking resistance system, other energy is changed into AC power by inverter module, the diesel engine is dragged from an idling speed to a high speed by the synchronous motor, energy feedback is realized. In this paper, to achieve synchronous motor starting, a zero crossing detection and frequency searching method based on rotor speed sensor is used,.The experiment shows the engine is started steadily and the current shock becomes flat.

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Research on motor rotational speed measurement in regenerative braking system of electric vehicle

Mechanical Systems and Signal Processing ◽

10.1016/j.ymssp.2015.06.001 ◽

2016 ◽

Vol 66-67 ◽

pp. 829-839 ◽

Cited By ~ 17

Author(s):

Chaofeng Pan ◽

Liao Chen ◽

Long Chen ◽

Haobin Jiang ◽

Zhongxing Li ◽

...

Keyword(s):

Electric Vehicle ◽

Rotational Speed ◽

Regenerative Braking ◽

Braking System ◽

Speed Measurement

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International Framework for Collaboration between European and Japanese Standard Consortia

Information Communication Technology Standardization for E-Business Sectors - Advances in IT Standards and Standardization Research ◽

10.4018/978-1-60566-320-3.ch011 ◽

2009 ◽

pp. 152-170 ◽

Cited By ~ 1

Author(s):

Akio Tokuda

Keyword(s):

High Speed ◽

Electronic Control ◽

Conformance Test ◽

Test Specifications ◽

Control Units ◽

International Collaborative ◽

Bus System

To develop automobiles that fulfill the criteria of “environment-friendliness” “advanced safety”, and“riding comfort”, coordination between ECUs (electronic control units) is indispensable. Since one or a number of functions is carried by the coordination of separate ECUs, it is important to standardize automotive LAN protocols to ensure reliable interoperability. In parallel with standardization, conformance test specifications for the protocols have played an increasingly important role in securing the interoperability of the complex LAN bus system. The present chapter, whose purpose is to examine the international collaborative framework which has been established between European and Japanese consortia since 2006 for the standardization of the automotive LAN protocol known as “FlexRay”, will focus on the contribution of the Japanese standard consortium to the drafting of the original conformance test specifications. The FlexRay protocol is expected to become the de facto standard in the automotive high-speed safety protocol market.

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Effect of Contact Failure of Connector in Electronic Control Units on Radiated Emissions

IEEJ Transactions on Fundamentals and Materials ◽

10.1541/ieejfms.132.456 ◽

2012 ◽

Vol 132 (6) ◽

pp. 456-457

Author(s):

Kazuya Uehara ◽

Yu-Ichi Hayashi ◽

Takaaki Mizuki ◽

Hideaki Sone

Keyword(s):

Electronic Control ◽

Control Units ◽

Radiated Emissions ◽

Contact Failure

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Digital Rotational Speed Measurement.

10.21236/ada299776 ◽

1995 ◽

Author(s):

Ronald J. Fischer

Keyword(s):

Rotational Speed ◽

Speed Measurement

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Ultrasonic sensor system for the uses in intelligent motion control system of a mobile robots group

Proceedings of the Mavlyutov Institute of Mechanics ◽

10.21662/uim2010.1.009 ◽

2010 ◽

Vol 7 ◽

pp. 109-117

Author(s):

O.V. Darintsev ◽

A.B. Migranov ◽

B.S. Yudintsev

Keyword(s):

Control System ◽

Mobile Robot ◽

Mobile Robots ◽

Motion Control ◽

High Speed ◽

Ultrasonic Sensor ◽

Sensor System ◽

Motion Control System ◽

Speed Sensor ◽

Working Space

The article deals with the development of a high-speed sensor system for a mobile robot, used in conjunction with an intelligent method of planning trajectories in conditions of high dynamism of the working space.

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