Industries Driveline, test bench and race track

Automotive & motorsport

The most telling place to measure torque is where the force is actually transmitted: in the gearbox, at the sideshaft, at the gearbox output. That is exactly where hot oil, high speeds and heavy vibration are, conditions under which conventional sensors either fail or cannot be fitted at all.

Automotive & motorsport, torque measurement by Melectric Systems
Automotive & motorsport · measurement in the driveline, including in oil
The starting point

The usual way out is to move the measurement: take it further out where it is easier, and calculate back. That folds transmission losses and modelling assumptions into precisely the number you set out to measure.

A magnetoelastic sensor does not have this problem, because it has no mechanical contact and no delicate contact point. It resists the media around it and runs inside a closed housing, fully submerged in oil.

Where it is used

Torque measurement in development, vehicle and racing

01

Driveshaft and gearbox output

Measuring at the gearbox output shows the real torque after every transmission loss. That sharpens engine and transmission calibration and gives traction control a measured figure rather than a modelled one.

02

Clutch actuators and shift systems

Automated transmissions need exact feedback on actuating forces. Measured at the clutch actuator, shifts become smoother and the response to load changes quicker.

03

Bolting systems in production and in the pit lane

Series assembly or a wheel change against the clock: the tightening torque has to be right and has to be provable. Sensors in the impact wrench validate every tightening torque digitally as it happens.

What you gain

What development and racing get out of it

Resistant to the media around it

The sensors work in engine and gearbox oil, with no need to design in a separate sealed space.

Series-ready with no recalibration

No mechanical contact means no wear; across the vehicle’s life neither sensor replacement nor recalibration is scheduled.

High dynamics

Fast load changes are resolved in time rather than averaged. That is what makes the data usable for control and not only for analysis.

One measuring chain through the vehicle

What is measured on the test bench can be measured on track with the same technology, so bench and track data stay comparable.

Key technical data

Technical guide values

We match the actual design to your shaft geometry, load profile and installation.

Measuring principle
Magnetoelastic, contactless
Operating medium
Air, water, engine oil, gearbox oil
Temperature range
−40 °C to +150 °C, extended versions on request
Interfaces
High-speed CAN, SENT, analogue (0.5–4.5 V)
Field of use
Test bench and vehicle, prototype through to series
Typical measuring points
Sideshaft, gearbox output, clutch actuator
Design
Matched to installation space, weight and EMC requirements

A measuring task in the driveline anfragen.

Next step

Tell us the measuring point, torque range, speed and packaging constraints. We will establish whether measurement is possible where you want it, and what that means for space and electronics.

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