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Timing drive

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

Problem: Increased pollutant emissions, short service life of components

Goal: Precise design of the timing drive

Analyses in the time domain

Clamping forces

Vibration and torsion angle analysis in phase

Oil pressure conditions with hydraulic tensioner

Closing behaviour of the non-return valve

Detection of contour loss

Detection of chain or belt slap

Detection of starting noises

Control and valve train analysis

In automotive development, the focus in combustion engines is on reducing fuel consumption and pollutant emissions. Timing drives and valve trains play a decisive role here, as they ensure the synchronisation of the crankshaft and camshaft to control the valve opening and closing behaviour. A timing drive that is not optimally synchronised dynamically can reduce the service life of the components and increase pollutant emissions.
To analyse the timing and valve trains, a multi-channel speed measurement is carried out on the camshafts and with the aid of a rotary encoder on the crankshaft. In combination with analogue measured variables, a comprehensive overall picture of the dynamic behaviour of the timing drive under different load conditions is created. The analogue measured variables include the pressure ratios in the chain tensioner, chain force and accelerations at the chain guides.
The recorded measured values are analysed both in the time domain and in the spectral domain.

Analyses in the spectral range

Extensive spectral and order analyses are carried out for in-depth investigation of the dynamic behaviour and excitation mechanisms. These enable a precise assessment of the vibration characteristics of the control drive.

The analyses focus on

Classical order and frequency analyses

Checking the resonance behaviour of the actuator

Analysing the excitations

Creation of envelope curves via the speed

Optimisation of the phase position of the excitations (e.g. for high-pressure pumps)

Analysis of the traction noise

These investigations provide valuable findings for optimising the dynamics, noise development and durability of the drive components.

Customised solution required?

ROTEC ENGINEERING offers customised measurement technology solutions and complete project management.
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#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 measuring system that can be individually configured with 8 or 16 measuring cards to meet your specific measuring 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 in accordance with 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.