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Applications

Our engineers have instrumented wheels, driveshafts, steering columns and suspension links on cars, trucks, tractors and trains.

Durability testing

Road load data at the wheel and on the parts, recorded on the proving ground, to size components and drive the rig.

About this type of test
  • Durability
    Wheel loads on the road

    Three forces and three moments at each wheel, recorded while the vehicle is driven.

  • Test rig
    Road simulators

    The loads measured at the wheel on the road, and the proof that the simulator reproduces them.

  • Durability
    Durability campaigns

    The load each wheel really sees on a pothole, an obstacle or a rough track, as recorded data.

  • Durability
    Wheel mass and adapters

    A wheel force transducer assembly as close as possible to the mass of the production wheel, so the measured peak loads are the real ones.

  • Component
    Engine mount loads

    The three forces each mount passes to the frame during start-up, acceleration and gear shifts.

  • Component
    Seat forces

    The three forces each seat mounting takes while driving and in a crash, without changing the driving position.

  • Suspension
    Suspension component loads

    How the wheel loads split between the suspension components and enter the chassis.

  • Suspension
    MacPherson strut force

    The total load into a MacPherson strut, measured at its lower attachment or at its top mount.

  • Suspension
    Ball joint force

    Vertical, lateral and longitudinal force in a ball joint, measured on the strain gaged production part.

Vehicle dynamics

Tire forces, side slip angle, steering torque and angle, and wheel speed, recorded during handling maneuvers.

About this type of test
  • Dynamics
    Vehicle dynamics

    The forces and moments at each wheel while the vehicle brakes, turns and changes lane.

  • Dynamics
    Side slip angle

    Side slip angle read without contact by an optical sensor, on a wheel or on the vehicle body.

  • Winter
    Winter testing

    Wheel forces and wheel speed measured on snow and ice, to see the moment a tire starts to slip.

  • Speed
    Wheel speed and distance

    Wheel speed, vehicle speed and distance traveled, read from the rotation of the wheel itself.

  • Speed
    Encoder pulses to analog voltage

    Encoder pulses converted in line to a speed voltage and an angle voltage, for recorders that cannot read pulses.

  • Speed
    Low-speed wheel rotation

    Distance and speed at near-zero speed and through a change of direction, without the error a loose stator restraint adds.

  • ADAS
    Autonomous vehicle tracking

    Distance traveled, measured at the wheels, for dead reckoning and mobile mapping when GNSS is missing.

  • Electric
    In-wheel motor torque

    Drive and brake torque of each in-wheel motor, measured between the tire and the hub.

  • Steering
    Steering torque and angle

    The torque the driver applies and the angle of the wheel, measured at the steering wheel, on the road or in the laboratory.

  • Steering
    Motorcycle handlebar torque

    Steering torque and steering angle at the handlebar of a motorcycle or an ATV, with the handlebars working as usual.

  • Tires
    Tire-road friction

    Tire and road surface forces measured in three directions on a traction fixture, to find the coefficient of friction.

Powertrain and transmission

Half-shaft, propshaft and crankshaft torque, and temperatures on rotating parts, on the road and on the dyno.

About this type of test
  • Efficiency
    Vehicle efficiency and power mapping

    Torque and speed measured at each driveline stage, from engine to wheel, so each power loss has a location.

  • Efficiency
    Brake drag and rolling resistance

    Low drag torques at the wheel, read on the road with a resolution of 0.14 N·m on cars and SUVs.

  • Powertrain
    Axle and half-shaft torque

    Drive torque measured on the production shaft, with a slip ring or telemetry to bring the signal out.

  • Powertrain
    Truck solid axle torque

    Drive torque on a truck solid axle, read by strain gages inside the shaft and brought out at the wheel.

  • Powertrain
    Drive shaft measurements

    Torque, strain and temperature from a drive shaft with no free end, through a slip ring that slides over the shaft.

  • Powertrain
    Accessory belt pulley torque

    Torque on an accessory drive pulley, from strain gages on the pulley and a slip ring on the shaft end.

  • Electric
    EV powertrain torque

    Torque at each stage of the electric drivetrain, from gearbox shafts to the wheel, to see where power is lost.

  • Electric
    In-wheel motor torque

    Drive and brake torque of each in-wheel motor, measured between the tire and the hub.

  • Electric
    Temperature in electric vehicles

    Temperatures on the rotating parts of an electric motor, brought out by a slip ring with amplifiers in its rotor.

  • Electric
    Battery thermal management

    Battery and motor temperatures on the vehicle, to keep the pack in its range and find the energy lost as heat.

  • Engine
    Crankshaft measurements

    Torque, bending and strain on your own crankshaft with the engine running, in the vehicle or on the dyno.

  • Agriculture
    PTO torque and power

    The torque and speed that the tractor delivers to the implement, measured during real field work.

  • Agriculture
    Combine harvester gearbox

    Torque, speed and temperature on the pulleys, gears and gearboxes of a combine, to find power losses.

  • Test rig
    Measurements in limited space

    Strain or temperature off a rotating part where there is no room for a slip ring and a separate amplifier.

Component testing

Forces on suspension links, mounts, seats, hitches and pedals, measured on the part itself in its production position.

About this type of test
  • Component
    Engine mount loads

    The three forces each mount passes to the frame during start-up, acceleration and gear shifts.

  • Component
    Seat forces

    The three forces each seat mounting takes while driving and in a crash, without changing the driving position.

  • Suspension
    Suspension component loads

    How the wheel loads split between the suspension components and enter the chassis.

  • Suspension
    MacPherson strut force

    The total load into a MacPherson strut, measured at its lower attachment or at its top mount.

  • Suspension
    Ball joint force

    Vertical, lateral and longitudinal force in a ball joint, measured on the strain gaged production part.

  • Component
    Robotics and prosthetics

    Forces in three directions, and moments, on a robot arm or a prosthetic foot, from a load cell small enough to fit in the assembly.

  • Steering
    Steering torque and angle

    The torque the driver applies and the angle of the wheel, measured at the steering wheel, on the road or in the laboratory.

  • Steering
    Motorcycle handlebar torque

    Steering torque and steering angle at the handlebar of a motorcycle or an ATV, with the handlebars working as usual.

  • Steering
    Tie rod loads

    The tension and compression force in each tie rod while the vehicle is steered and driven.

  • Towing
    Pintle hitch forces

    The three forces between towing vehicle and trailer, recorded in real towing situations.

  • Lifting
    Crane load monitoring

    The force at each point of a crane's rope and rigging, so that no part is loaded beyond its capacity.

  • Medical
    Medical equipment

    Small tension loads, multi-axis forces on prostheses and clean temperature signals, for medical and pharmaceutical equipment.

  • Component
    Drone payload and landing loads

    The forces in a drone's payload path, at the moment of release and at touchdown, measured without changing the geometry or adding mass.

Brake testing

Disc and hub temperatures, brake torque, wheel forces and pedal force, measured while the vehicle brakes.

About this type of test
  • Efficiency
    Brake drag and rolling resistance

    Low drag torques at the wheel, read on the road with a resolution of 0.14 N·m on cars and SUVs.

  • Temperature
    Temperature on rotating parts

    The temperature of a bearing, a compressor or a brake rotor, read while the part rotates under load.

  • Temperature
    Brake disc temperature

    Disc and hub temperatures read on the turning wheel, through a wheel slip ring or a telemetry package.

  • Brakes
    Brake pedal force

    The force the driver puts on the brake pedal, read up to 2 200 N on the series pedal.

  • Tires
    Tire-road friction

    Tire and road surface forces measured in three directions on a traction fixture, to find the coefficient of friction.

Crash and impact

Impact forces on the barrier and on the seat mountings, measured in three directions.

About this type of test
  • Crash
    Crash barrier loads

    Impact force on a crash barrier, measured in three directions by a panel of 124 mm load cells.

Test rigs and dynos

Rotating signals in cells full of EMI and high voltage.

About this type of test
  • Test rig
    Road simulators

    The loads measured at the wheel on the road, and the proof that the simulator reproduces them.

  • Turbines
    Fan and turbine blades

    Strain and temperature from many points on the blades, recorded together while the rotor turns.

  • Turbines
    Wind turbine strain

    Strain on the blades and in the gearbox of a wind turbine, brought off the rotor by a slip ring.

  • Rig
    Force and moment load platform

    Net forces and net moments on a system, calculated from four three-axis load cells.

  • Test rig
    Measurements in limited space

    Strain or temperature off a rotating part where there is no room for a slip ring and a separate amplifier.

  • Test rig
    Gigabit Ethernet through a slip ring

    A Gigabit Ethernet link passed through a spinning slip ring, validated by a file transfer with no error.

  • EMC
    EMC and BCI testing

    The signals of the equipment under test, carried over fiber so the field does not corrupt them.

Off-road

Wheel and axle loads, PTO torque and power, and hitch forces on trucks, tractors, tracked vehicles and machines.

About this type of test
  • Off-highway
    Tracked vehicles

    Forces on the road wheels, the idler and the sprocket of a tracked vehicle, to validate the running gear model.

  • Agriculture
    PTO torque and power

    The torque and speed that the tractor delivers to the implement, measured during real field work.

  • Agriculture
    Combine harvester gearbox

    Torque, speed and temperature on the pulleys, gears and gearboxes of a combine, to find power losses.

  • Agriculture
    Agricultural machinery

    Wheel loads, wheel torque, PTO power and forces on working parts, measured on the machine at work.

  • Towing
    Pintle hitch forces

    The three forces between towing vehicle and trailer, recorded in real towing situations.

  • Lifting
    Crane load monitoring

    The force at each point of a crane's rope and rigging, so that no part is loaded beyond its capacity.

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