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ancillary units

 

Precise analysis of torsional vibrations, valve dynamics and transmission errors for the automotive industry,
energy & mechanical engineering

Problem: Slippage, belt vibrations, wear of the belt drive components

Goal: Precise design of the ancillary units

analyse spektral bereich steuertrieb (2)

Analyses in the time domain

Belt loads
Bearing forces
Slip behaviour in the overall drive
Start and stop behaviour

analyse spektral bereich steuertrieb

Analyses in the spectral domain

Resonance behaviour of the tensioner
Resonance behaviour of the entire drive
Automatic generation of result tables
Decoupling behaviour

Function tests on FEAD and BAS drives

The functional tests on auxiliary drives (FEAD) and belt starter-generator drives (BAS) include the measurement and evaluation of slip and the dynamic behaviour of the entire belt drive system. In addition to the high-resolution recording of the rotational angle position of the crankshaft and all other belt pulleys, the following measured variables are also important in the measurement setup Belt forces Tensioner movements Belt vibrations. They also influence
the operating state of the engine
the load conditions of the auxiliary units and
the current torque of the BAS generator
significantly influence the drive behaviour.

The measurement data is analysed in the time and spectral domain.

Investigations on auxiliary drives

Auxiliary drives such as the power steering pump or the air conditioning compressor, which regulates the temperature in the vehicle, make a significant contribution to driving comfort.

To avoid damage, the correct belt tension must always be ensured for auxiliary drives. If the tension is too low, this leads to slippage and belt vibrations and thus to premature wear of the belt drive components.

Hybrid drives and CAN-BUS integration

The state of charge of the battery plays an important role in hybrid drives.
Most of the relevant variables are available with sufficient resolution on the CAN BUS and can be recorded with the Rotec CAN BUS card.

In BAS systems, in particular

the starting and stopping processes of the engine and

the switching of the starter generator between engine and generator operation (recuperation) represent one of the most demanding dynamic states.

Therefore, a sensor system with direction of rotation detection is required in order to detect the correct speed ratios.
Rotec offers suitable sensor solutions for this, such as

Encoder adjustment modules

Quadrature encoders

#FAQs

Frequently Asked Questions

Have Question? We are here to help

What does the ROTEC solution for rotation analysis look like and what does RAS mean?

The ROTEC Rotational Analysis System (RAS) has been used for more than 30 years by users in the mechanical engineering, automotive, power generation and motorsport industries to comprehensively analyse rotating components.

With its unique measurement method using a 12.3 GHz counter card and a strictly angle-based approach to rotational speed detection and analysis, the RAS system offers users an unrivalled advantage.

ROTEC offers not only optical and magnetic speed sensors including signal conditioning adapters, but also the modular measuring system RASdelta as well as specialised and user-friendly software for measurement and analysis. This enables a complete solution from a single source. The ROTEC measurement technology products are perfectly harmonised and deliver meaningful results within a very short time after the uncomplicated setup of the measurement chain.

Thanks to the angle-based approach to speed measurement, problems such as sensor vibrations can be recognised after the first measurement and rectified immediately. This effectively prevents costly incorrect measurements.

Our team of experts at ROTEC ENGINEERING, consisting of long-standing users, will be happy to assist you with challenging tasks.

Are there options for customising the measuring systems and software?

The ROTEC RASdelta front end is a versatile modular measurement system that can be customised with 8 or 16 measurement cards to meet your specific measurement requirements.

Our RAS software offers you a comprehensive modular system for analysing rotating components and complex systems. It is an effective tool for mechanical engineers and requires no programming knowledge to perform measurements or analyses.

If you have specific metrological questions, our experienced ROTEC ENGINEERING consulting team will be happy to support you.

Does ROTEC offer other services in addition to the measuring systems, e.g. customised consulting or project support?

ROTEC not only offers speed sensors, signal conditioning, measurement systems (DAQ) and measurement and evaluation software, but also engineering and consulting services.

Our services include the design of measuring points in CAD, the mechanical processing of components, the application and calibration of sensors, the execution of measurement tasks and the evaluation of measurements according to our customers' requirements, including the presentation of the results. The ROTEC ENGINEERING team can also realise sub-projects as part of project support.

Is there training or technical support for commissioning and integrating the measuring systems?

In addition to our annual ROTEC Training Week, which is held in both German and English, we also offer customised training courses for users. These training courses are specially tailored to your individual application of the ROTEC measuring system and include practical demo measurements in your environment in addition to the theoretical basics and a detailed presentation of the software. This ensures that future users are optimally prepared for your specific application.

Furthermore, we are happy to support you in the commissioning of new measuring systems to enable you to familiarise yourself with the settings and possibilities of the RAS software as quickly as possible.

How is support ensured and are there self-help options?

In addition to our sales and support team in Munich, which serves the Central European market directly from here, ROTEC also cooperates with local partners in many global markets. These partners support local users with trained personnel for all matters relating to ROTEC measurement technology, first-level support and sales enquiries.

Our customers around the world appreciate the proximity of our sales and support teams, as this enables us to guarantee effective support even for short-term questions.

In addition to personal contact, ROTEC also offers an extensive knowledge database for self-help. Please register for our knowledge database to obtain detailed information on measuring and analysing torsional vibrations, transmission errors and valve systems, among other things.

Customised solution required?

ROTEC ENGINEERING offers customised measurement technology solutions and complete project management.