LW-2T-20K wheel force transducer
Six-axis wheel force transducer for pick-up trucks, vans and SUVs, 90 kN radial and 45 kN lateral, for 16 in and larger single or dual wheels, with slip ring transmission.
- 90 kN
- Fx, Fz capacity
- 45 kN
- Fy capacity
- 15 / 20 kN·m
- Moment capacity
- ≤ 0.5 % FS
- Non-linearity
- OutputsFx Fy Fz · Mx My Mz
- Also measuredX and Z acceleration (X, Y, Z on the LW50 and LW55) · wheel speed and angle
- Signal outputanalog · CAN · Ethernet · CAN FD and EtherCAT on the CT3
- Signal transmissionslip ring or telemetry
LW-2T-20K: wheel force transducer for pick-ups and vans, 90 kN
The LW-2T-20K measures all the wheel forces and moments on light and heavy-duty pick-up trucks, vans and SUVs. Four-arm strain gage bridges give independent signals for the vertical, lateral and longitudinal forces, up to 90 kN radial (Fx, Fz) and 45 kN lateral (Fy), and for the camber, steer and torque moments, 15 kN·m (Mx, Mz) and 20 kN·m (My). Non-linearity is 0.5 % of full scale or less, crosstalk after correction below 1 %. The weatherproof, temperature-compensated ring, Ø 374.65 × 38.10 mm, operates from −40 to 125 °C. Its amplifier package adds X and Z accelerations and an encoder resolving 0.17°.
Rim and hub adapters follow the model's design guides and keep the production wheel offset. Sixteen M14 bolts join the rim adapter and twenty-four the hub adapter, tightened crosswise to 136 N·m; the wheel is balanced once assembled. The matched amplifier and slip ring mount after the lug nuts. A restraint rod to a magnetic bracket holds the slip ring stator, or the stator angle correction device on steered wheels. The CT3 interface box, powered at 9 to 36 V DC, runs the shunt calibration check and the zero, wheel lifted and turned two revolutions.
It is used for on-road and off-road measurements in all conditions, one transducer measuring the combined loads of a dual wheel set or a single tire, and also to monitor and control laboratory tests.
Specifications
| Measured quantities | Fx · Fy · Fz · Mx · My · Mz |
|---|---|
| Force capacity | Fx 90 · Fy 45 · Fz 90 kN |
| Moment capacity | Mx 15 000 · My 20 000 · Mz 15 000 N·m |
| Max static load | 1 815 kg |
| Non-linearity | ≤ 0.5 % FS |
| Hysteresis | ≤ 0.5 % FS |
| Crosstalk | ≤ 1 % FS (after correction) |
| Angle resolution | 0.17° |
| Axes | 6 |
| Sensing principle | Strain gage (4-arm bridges) |
| Accelerometer range | 55 g |
| Output | Analog voltage · CAN · CAN FD · Ethernet · EtherCAT (CT3; EtherCAT with an add-on module) |
| Signal transmission | Slip ring |
| Shaft diameter | 261.62 mm (center bore) |
| Mounting fasteners | 40 × M14 × 2.0 (threaded holes, on the hub and rim bolt circles) |
| Bolt circle | 288.29 mm |
| Rim bolt circle | 345.44 mm |
| Dimensions | Ø 374.65 × 38.1 mm |
| Operating temperature | −40 to 125 °C |
| Interface box | CT3 |
| Vehicles | Pick-up trucks · Vans · SUVs |
| Rim size | 16 in (and larger, single or dual) |
Used with the LW-2T-20K
What you add here goes into the same quote request.
-
Measure on a steered wheel
SAC stator angle corrector
Corrects the rotation angle signal in real time for the coordinate transformation, with no over-the-wheel bracket. Internal encoder accuracy ≤ 0.25°, IP67.
Slip ring versions, with the CT3 interface box.
Resources
Datasheets and manuals
Related applications
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Durability Wheel loads on the road Three forces and three moments at each wheel, recorded while the vehicle is driven. -
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. -
Test rig Road simulators The loads measured at the wheel on the road, and the proof that the simulator reproduces them.
If the LW-2T-20K is not the one
- Torque only Wheel torque transducers
Drive and brake torque at the wheel, while the vehicle is driven.
- Signals from the series wheel Wheel Instrumentation System
Strain gage and thermocouple signals off a rotating wheel, on the vehicle's own wheel, on track or off-road.
- Force on a part, not a wheel TR3D-B
Three perpendicular forces from a square body, down to 25.4 mm a side.
A question on this product?
Vehicle, wheel size, expected loads. An application engineer answers.
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