Pressure Sensors for Hybrid Electric Vehicles

New sealing concept offers high levels of safety and long term stability

A special pressure sensor designed for use at the fuel tank of hybrid-electric vehicles is the latest development from the specialists for ceramic pressure measuring cells – AB Elektronik Sachsen GmbH. The new pressure sensor features very high measuring accuracy over its life time, and satisfies the specific and demanding requirements of modern hybrid-electric vehicles particularly closely.

At the core of the new pressure sensor is a fully ceramic pressure measuring cell with integrated pressure connection. The sensor is mounted in a compact two-part housing. Next to the pressure measuring cell are the circuit board for signal conditioning and the electrical connection.

Sealing against the installation point can be made with either one or two O-rings, depending on the medium and tightness requirements. Different O-ring materials can also be combined to allow compatibility with different media or aggregate states at the same time. Thanks to its optimal use of space, this new pressure sensor is only slightly taller than a EMS pressure sensor for a comparable pressure range.

AB Elektronik’s in-house ceramic processing capability has enabled a rapid and flexible design of the pressure connection in terms of diameter and sealing concept, for individual adaptation to customer requirements. The preferably digital interface can also be quickly varied in its design.

“This new sensor opens up a very wide field of applications in the sophisticated low pressure range for sensors of this type” says Frank Rothe, specialist for pressure, temperature and liquid quality sensors at AB Elektronik Sachsen GmbH.» Technical details about combined Pressure and Temperature Sensor can be found here

» More about Pressure Sensors

» Learn obout our wide portfolio for electric vehicles

Technical article: Efficient and reliable battery switch for 48 V Li-ion batteries

In the case of a traffic accident, it must be possible to disconnect lithium-ion batteries independently and safely from electrical consumers. At present, mechanical relay switches are used, but these cause noise. For electric cars in particular, the requirements for noise emission of components are becoming more stringent. A semiconductor-based isolating switch can be used as an alternative for this application. The solution presented in this article offers advantages in terms of high current capability, excellent thermal properties (continuous and transient) and long service life, while at the same time being cost-effective, since the power electronics are largely made of a pure aluminium alloy.

 

» Read more about the technology background in the latest article published on all-electronics.de (German).

» Read the the English article by Dr. Louis Costa, AB Mikroelektronik GmbH, Salzburg, Austria

Participate our Webinar: “SPINpad Sensors Outperform VR Resolvers in Terms of Economy, Functionality, & Flexibility in Hybrid/Electric Powertrains”

On Wednesday, May 27, 1 pm EST Matthias Knoche, Product Application Manager Speed Sensors will give a live webinar about our innovative SPINpad technology.

 

Description:

The functionality and effectiveness of electric motors and driver assistance systems is critically dependent on the reliability of the sensors that convert physical variables, such as speed or position, into electrical signals and transmit them to the control unit. One of the most crucial sensors in electrified powertrains — the rotor position sensor— is located within an electric motor, which is an exceptionally challenging environment. VR resolvers are the current standard technology solution but have no active electronics, which means that they can’t offer any self-diagnostic functions, and are costly considering the technology principle and manufacturing processes.

AB Elektronik developed SPINpad Rotor Positions Sensors to provide hybrid/electric powertrains with more economical, functional, and flexible alternatives to VR resolvers. SPINpad sensors incorporate active electronics, which allows them to support redundant systems designs that meet stringent safety-critical applications requirements per ISO 26262 functional safety guidelines, solve accuracy issues common to VR resolvers, reach maximum speeds of up to 100,000rpm depending on the number of pole pairs within electric motors, and provide digital or analog output signals with readiness for ISO26262 up to ASIL C with one channel or ASIL D with a redundant system. SPINpad sensors are also more flexible in terms of assembly, featuring a very thin form factor with high magnetic immunity and various assembly options for substrates ranging from PCBs to fully metallic targets.

AB Elektronik Sachsen GmbH: Georg Schafrath says goodbye and takes over the management of Salzburg on April 1st

A farewell that will become official on 1 April 2020. On this date Georg Schafrath will take over the role of Managing Director of AB Mikroelektronik in Salzburg, also part of AVX Sensing and Control Division. AB Elektronik Sachsen GmbH will be managed on an interim basis by the long-standing plant management team members Aldo Bojarski, Head of Development at the Klingenberg site, and Lars Warnecke, Head of Finance of the Sensing and Control Division.

Originally planned in the context of a works meeting, the farewell took place on a much smaller scale than planned, in the spirit of social isolation. However, Georg Schafrath found very personal words for the workforce and management team, who have backed him with unreserved loyalty since 2017. As a member of the Supervisory Board, he will continue to be associated with the plant in the future. 

Herr Schafrath takes up his new role with optimistic foresight. “AB Mikroelektronik stands for innovative automotive technologies with the Power Module and LED technologies product lines, strong application depth and customer specific developments. With worldwide production at the global locations of the AVX group, together with the local team we continue to build on our strengths.”

Further information about AB Elektronik Sachsen GmbH.

AB Elektronik: Rotor Position Sensor for Electric Motors

Inductive SPINpad Rotor Position Sensor from AB Elektronik optimizes the efficiency of electric motors

It’s a highly topical issue: alternative drive concepts and further reduced fleet emission limits (limit value 2020: 95g CO2/km) require solutions. Here, the electric motor is considered to be the alternative with the highest short term efficiency in powertrain optimization.

Designed-in solutions: the SPINpad sensor offers high immunity to interference, and cost advantages through a simplified design

Achieving high efficiency from an electric motor requires precise control, and the lower the specific energy consumption, the greater the range of the vehicle. A fundamental control variable for motor control in this context is the rotor position within the electric motor.

AB Elektronik’s rotor position sensor is a further evolution of AUTOPAD inductive technology – with many million products in the field.

The inductive system is characterized by an immunity to low frequency magnetic fields up to 150kHz. The circuit board based design of the coil structures, and the resonant operation, allow several sensor systems to be located in a very small space. These are designed to meet functional safety requirements (ISO 26262) up to a maximum level of ASIL D. Many years’ experience in inductive technology has enabled a simple product design, ideal for highly automated production. The associated cost advantages make the system more attractive than comparable solutions.

Made for the future: Forward thinking in the design of the rotor position sensor supports self-diagnostic functions, and paves the way for use in autonomous vehicles

This is novel in the field of rotor position sensors, as existing technologies (e.g. VR resolvers) are purely mechanical/passive sensors without self-diagnostic functions. This can lead to control software problems in the growth phase of autonomous driving, as such sensors cannot be adequately secured against potential errors.

Depending on the application requirements, the SPINpad sensor can be designed as a 360° system. Alternatively, to simplify installation and for large diameters, a circular segment design can be adopted. Depending on the design of the vehicle, the system can be mounted on the shaft (‘through-shaft’), or on the end of the shaft.

In combination with AB Elektronik’s innovative direct injection moulding technology, a SPINpad rotor position sensor is robust against even the most demanding requirements in the customer application – for example, continuous operation at 150°C in transmission oil.

Find technical details in our Fast Fact Sheets

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If you like some more information about our wide portfolio for speed sensors, open the complete overview here!

AVX – Generic Coronavirus Statement

AVX website generic Coronavirus (COVID-19) alert

The spread of the coronavirus (COVID-19) in China these past few weeks has caused the World Health Organization to announce the situation as a Public Health Emergency of International Concern and for the Legal Work Committee of the National People’s Congress to declare that, unless otherwise provided by law, the current measures taken by the Chinese government to protect public health are force majeure events and shall excuse a party’s inability to perform part or all of its obligations.

Most airlines and many shippers have stopped their services to and from China either partially or fully. Further, many facilities in China are still closed or are on reduced production schedules.

Each province is responding to this emergency separately. In particular, AVX Group manufacturing facilities have been significantly affected. In addition, the supply of protective equipment such as masks, non-contact thermal measuring devices, and the like is disrupted and there are shortages both in China and elsewhere.

As a result, there has been a substantial impact on the supply chain of products either manufactured in China or which incorporate components that are manufactured in China.

The situation is very fluid with new announcements being made without any prior notice by governmental units, manufacturers and transporters.

These circumstances are unforeseeable and outside the reasonable control of the AVX Group and in the nature of “force majeure,” thereby creating impediments to members of the AVX Group in providing its products and services to its customers.

Accordingly, AVX Group shall be relieved of any liability under any contract for services to and from China if, and to the extent that, such liability is caused by the consequences of outbreak of coronavirus.

In view of the aforesaid force majeure situation, AVX Group reserves the right to modify all or part of its obligations to provide products services that are manufactured in China or which contain components manufactured in China, to change its working procedures, to charge surcharges or otherwise to take measures to adjust its business operations and obligations towards customers to the then prevailing circumstances arising as a consequence due to outbreak of coronavirus.

The AVX Group is continuously monitoring the situation and will provide further updates in this regard when available. If you have any questions or for further information, please do not hesitate to email inquiry@avx.com, call +1 864-967-2150 or write to One AVX Boulevard, Fountain Inn, SC 29644.

 

AVX-Coronavirus-Letter

Auto Expo Components 2020

Auto Expo Components in New Delhi / India – our teams are around the show and we are looking forward to meet you.

As your long-standing partner for customer-specific sensors and electronic solutions for passenger car, commercial vehicle and off-road applications we have compiled some topics that might be of interest to you.

We are looking forward to meeting you, please ask for an appointment here.

Trust in competence – sensors and power electronics for exhaust applications that meet the requirements of the BS6 regulation in India.

AB Elektronik: BS6 Sensor Solutions for exhaust applications in cars, trucks and two-wheelers.

AB Elektronik has partnered with global car, truck and two-wheeler manufacturers for many years. Today we are applying our long term experience in exhaust technologies to BS6 projects. Together with our teams in Manesar and Bangalore, India we are designing reliable, sturdy solutions for the next generation of environment friendly exhaust systems.

Our portfolio for exhaust gas applications includes:

Temperature, Pressure and Fluid Quality Sensors

  • Monitoring of loading and the regeneration process in the particulate filter
  • Monitoring of novel high temperature combustion processes (PWM, SENT or CAN signal output)
  • Pressure and quality monitoring of AdBlue® in the SCR system (Optical sensor records urea concentration in AdBlue® via the refractive index)

The field of exhaust after treatment is one of our core competences. As well as providing product information and technical articles on our website, we stay close to our global customers. For the India market and BS6 requirements, please get in touch with our sales team in Manesar or with Frank Rothe our global product application expert for exhaust applications.

You can find a range of useful information and links here.

BS6 Sensor Solutions for exhaust applications

Trust in competence – sensors and power electronics for exhaust applications that meet the requirements of the BS6 regulation in India

AB Elektronik: BS6 Sensor Solutions for exhaust applications in cars, trucks and two-wheelers.

AB Elektronik has partnered with global car, truck and two-wheeler manufacturers for many years. Today we are applying our long term experience in exhaust technologies to BS6 projects. Together with our teams in Manesar and Bangalore, India we are designing reliable, sturdy solutions for the next generation of environment friendly exhaust systems.

Our portfolio for exhaust gas applications includes:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Temperature, Pressure and Fluid Quality Sensors

  • Monitoring of loading and the regeneration process in the particulate filter
  • Monitoring of novel high temperature combustion processes (PWM, SENT or CAN signal output)
  • Pressure and quality monitoring of AdBlue® in the SCR system (Optical sensor records urea concentration in AdBlue® via the refractive index)

The field of exhaust after treatment is one of our core competences. As well as providing product information and technical articles on our website, we stay close to our global customers. For the India market and BS6 requirements, please get in touch with our sales team in Manesar or with Frank Rothe our global product application expert for exhaust applications.

You can find a range of useful information and links here.

AB Elektronik and CPK start feasibility study for new NOx sensors

AB Elektronik and CPK start feasibility study for new NOx sensors

Contract signed on 6th December, St Nicholas Day 2019 in Werne.

AB Elektronik is a long standing partner in the automotive industry, and a global player in the market for exhaust gas sensors. Together with experts from CPK-Automotive in Münster, Germany, the company has begun a feasibility study for a novel NOx sensor. The new sensor will offer significantly greater accuracy and a significant cost advantage over the NOx sensors widely available in the automotive market.

NOx sensors detect the nitrogen oxide content of the exhaust gas before and after the SCR catalytic converter. They are therefore indispensable for complying with the latest exhaust emission standards, and will fulfil an important market need into the future. AB Elektronik brings to the partnership a large portfolio of exhaust gas sensors and, on completion of a successful project, will consider expansion in the area of NOx sensors. CPK is the technology partner in the alliance; the development teams in Werne and Münster in North Rhine-Westphalia are jointly committed to achieving a positive feasibility study.

Initial tests have already been completed, and the results will be further validated during the collaboration.

 

Contract signing in Werne. From left to right:
AB Elektronik – Thomas Rinschede, (VP Technical Sales der AVX Sensing and Control Business Unit und Geschäftsführer der AB Elektronik GmbH) Stefan Rühl (Director R&D der AVX Sensing and Control Business Unit)
CPK – Frank Noack (Geschäftsführer der CPK Automotive GmbH & Co. KG), Dirk Bleicker (Head of R&D der CPK Automotive GmbH & Co. KG)

Read the latest article about our new NOx sensor in ATZ Heavy Duty 01/2020

Learn more about AB Elektronik’s the exhaust gas sensor portfolio from AB Elektronik

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AB Elektronik develops standard concept for urea sensor

Since Euro standards have been regulating the pollutant emissions of modern engines and exhaust systems, automobile manufacturers and system partners have relied on sensors from AB Elektronik.
The measurement of urea quality is the third product column for exhaust gas sensor technology – alongside temperature and pressure measurement – with which the experts from Klingenberg, near Dresden, are finding success in global markets.

After consistent development of their optical urea concentration sensor, AB Elektronik has introduced standardization as a modular system, which opens up clear advantages over complex systems with ultrasonic units and other measuring methods. The optical measuring method allows a very compact sensor design, which proves to be extremely robust in demanding environmental conditions. The compactness allows for versatile use in different mounting systems, both in or at the urea tank, as well as in the supply line.

Frank Rothe, Product Manager for this product group, puts the increasing demand in the automotive sector down to the need for permanent measurement of the urea content in the fuel additive known as AdBlue. This is used to eliminate nitrogen oxides in diesel vehicles, and in modern automobiles, continuous measurement of its quality is now mandatory. If the concentration does not comply with the specifications, or if the level in the tank can no longer be measured, the driver receives various warnings until the vehicle finally switches to emergency mode. The sensor is also used for similar functions in tanks and industrial plants.


“We see a wide variety of requirements regarding the installation space, and the interfaces for measuring urea content”, says Mr Rothe. “Not every requirement can be supported with a completely new design if the required quantity is small. This has led to our development of a modular standard, which we will offer in the future with a partner, among other things as a complete tank sensor unit. As a competent partner in the field of exhaust gas sensor technology, we are convinced that this step will help our customers to optimize their systems.” Frank Rothe continues: “Development of the technology is in the hands of our European competence centre; production and local design adaptation takes place in our international locations.”

Find technical details about the urea concentration sensor from AB Elektronik

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