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Measurement technology for the automotive industry


LTT precision measuring instruments are ideally suited for a wide range of applications in the automotive industry due to their combination of robustness, high measurement accuracy, and high precision in power measurements

High-precision measurement technology for the automotive industry

Our measurement systems and other measurement technology (ADCstamp) are ideally suited for use in the automotive industry. Extremely precise data acquisition combined with highly synchronous data processing enables measurements and data analysis of the highest quality. Thanks to the high robustness of the measuring devices, they can be used without any problems even in the most demanding environments.

Learn more here about some of the possible applications of LTT measurement technology in the automotive industry:

Development and power analysis of electric motors

Precise measurement technology plays a crucial role in the development, optimization, and validation of electric motors and electric drive components in the automotive industry. LTT measurement technology enables high-resolution, synchronous recording of electrical and mechanical variables such as voltage, current, power, torque, speed, and efficiency. This enables detailed power analysis of electric motors, inverters, power electronics, and complete electric drive trains under realistic operating conditions.

Precise measurement data acquisition is particularly important in the development of traction motors, hybrid drives, and electric auxiliary units in order to identify energy losses, optimize efficiency, and increase the efficiency of the overall system. LTT's high-resolution measurement systems enable the synchronous acquisition of multiple channels with high sampling rates and dynamics, allowing both stationary and dynamic processes, such as load changes, start-up behavior, or transient power flow, to be analyzed with precision.

LTT measurement technology is used in the automotive industry in research and development as well as on test benches and in series validation. Typical applications include the performance analysis of electric motors, the characterization of inverters, the investigation of electromagnetic losses, and the efficiency evaluation of complete electric drive systems. LTT measurement technology thus supports automotive manufacturers and suppliers in the development of efficient, powerful, and reliable electric drive technologies for modern and future vehicle platforms. 

Component tests

For example, in injection systems – including speed-indicated measurements.

The advantages of LTT measurement systems are:

  • Flexibility
  • Very high sampling rates with 24-bit resolution
  • Cascadable and also usable in combination for multi-channel measurements

Engine testing technology

These include measurements via acceleration sensors of stresses, strains and vibrations directly on the motor.

LTT measurement systems also impress here with:

  • Very high sampling rates
  • Compact design
  • Simple operation
  • Fast, patented data transfer from the measuring system to the PC

Material test / Crash test

Material samples from the deformation zones of vehicle bodies are analyzed for their characteristic structure-borne sound properties. This involves, for example, quantifying the potential sound energy density of a material or body panel.

To meet the demanding requirements of crash diagnostics, high-performance and robust measurement equipment is needed. This includes the following requirements:

  • Self-contained measurement: The system must be able to record for extended periods (up to several minutes) without continuous computer support.
  • High signal bandwidth: To capture all important frequency components of structure-borne sound, high bandwidths (up to 1.5 MHz or higher) are required.
  • High sampling rate for capturing the sometimes weak signals
  • Numerous trigger functions
  • Easy data reduction via mathematical functions in the LTTpro software

In addition, the measurement system must be correspondingly robust, as extreme accelerations (over 70g) occur during crash tests.

The LTTsmart transient recorder, which is considered particularly powerful, is presented here as a solution. In addition, the robust LTT24 is used for the highest loads. Both variants have proven their worth in stationary test bench operation as well as in mobile crash tests.

Airbag development | Test systems

Airbag testing involves measuring control signals that inform the vehicle's onboard electronics about the functionality of the airbags.

To meet the stringent requirements, high-performance measuring equipment is essential. The same requirements apply here as those described above for crash tests.

Our solution for optimal measurements: the powerful LTTsmart. This variant has already proven itself several times in stationary test bench operation.

Engine development

Test technology for measurements on engine control and engine functions, output signals from engines, ignition voltages.

  • Simultaneous measurements over many channels

  • Measurement of output signals: motors, ignition voltages, etc.

  • Measurements over long periods of time

Monitoring rotating machines

LTT measuring devices are used for real-time monitoring of rotating machines and pumps in production monitoring. They enable precise quality control, optimisation and predictive maintenance of:

  • electric motors

  • gearboxes

Noise analysis

Noise analysis with measurement systems is a key tool in the automotive industry for optimizing vehicle acoustics and ensuring quality standards.

  • Optimization of NVH characteristics (see below).
  • Increased driving comfort: Noise analysis can help make a vehicle's interior quieter and more pleasant.
  • Development and optimization of electric vehicles: Electric vehicles largely eliminate engine noise. However, this makes other noises more noticeable (e.g., tire noise, fan noise, transmission noise).
  • Quality control in production: Automated noise diagnostics can detect defects that are not visually apparent. This ensures consistent quality.
  • Compliance with legal requirements and standards: Compliance with noise limits.

With measurement systems from Labortechnik Tasler, you can analyze noise sources in vehicles three-dimensionally!

  • Array measurements on 16 synchronous channels

NVH analysis

NVH (noise, vibration, harshness) analyses check the conditions of rigid rotors, among other things

  • Balancing condition analysis
  • Balancing
  • Vibration analysis
  • Modal analysis

We offer an NVH software option for optimal NVH analysis.

Application reports of LTT measurement technology

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