LW450 6-axis wheel force transducer, 450 kN, 135 kN·m
Six-axis wheel force transducer for class 8 trucks, large off-road vehicles and heavy equipment, 450 kN radial and 225 kN lateral capacity, with slip ring.
- 450 kN
- Fx, Fz capacity
- 225 kN
- Fy capacity
- 135 kN·m
- Moment capacity
- ≤ 0.5 % FS
- Non-linearity
- OutputsFx Fy Fz · Mx My Mz
- Also measuredX and Z acceleration · wheel position and speed
- Signal outputCAN FD · CAN 2.0 · Ethernet on the CT3; analog and EtherCAT with optional modules
- Wheel size22.5 in and larger
LW450: heavy-duty wheel force transducer, 450 kN
The LW450 measures all the wheel forces and moments: radial forces up to 450 kN (Fx, Fz), lateral force up to 225 kN at the tire patch (Fy) and moments of 135 kN·m (Mx, My, Mz). Non-linearity is 0.5 % of full scale or less, hysteresis and cross-axis sensitivity after correction are below 0.5 %. Its four-arm strain gage bridges and ± 100 g accelerometers operate from −40 to 177 °C, and the angular resolution is 0.17°.
The LW450 is built of stainless steel, temperature compensated and environmentally protected, and adapts to wheels of 22.5 in and larger. In spinning use, an outboard slip ring carries the signals, with the amplifier package mounted onto the transducer: it holds ± 100 g X, Y and Z accelerometers, a high-resolution optical encoder for position and speed and a removable smart chip with the calibration, zero and shunt values. The CT3 performs coordinate transformation and crosstalk, offset and polarity correction; its embedded web page, reached over USB, sets up the system and moves the measurement origin.
The LW450 is used on class 8 trucks, large off-road vehicles and heavy equipment, on the road and off road in all weather conditions, and on laboratory tests, on a single tire or a dual wheel set.
Specifications
| Measured quantities | Fx · Fy · Fz · Mx · My · Mz |
|---|---|
| Force capacity | Fx 450 · Fy 225 · Fz 450 kN |
| Moment capacity | Mx 135 000 · My 135 000 · Mz 135 000 N·m |
| Non-linearity | ≤ 0.5 % FS |
| Hysteresis | ≤ 0.5 % FS (below) |
| Crosstalk | ≤ 0.5 % FS (after correction, below) |
| Angle resolution | 0.17° |
| Axes | 6 |
| Sensing principle | Strain gage |
| Accelerometer range | 100 g |
| Output | CAN · CAN FD · Ethernet |
| Signal transmission | Slip ring |
| Operating temperature | −40 to 177 °C |
| Interface box | CT3 |
| Vehicles | Heavy equipment |
Request a quote
Unusual bolt pattern, motorsport hub, agricultural wheel: we build it around your wheel.
Used with the LW450
What you add here goes into the same quote request.
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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
Drawings
None for LW450.
CAD models
None for LW450.
Guides and notes
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 LW450 is not the one
- Higher capacity LW700
Six-axis wheel force transducer for standard hubs with a 425 mm PCD, 700 kN per force and 275 kN·m per moment, sealed to IP67, with slip ring or telemetry.
- Torque at the wheel 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.
A question on this product?
Vehicle, wheel size, expected loads. An application engineer answers.
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