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LW60 wheel force transducer

LW60 wheel force transducer LW series

Six-axis wheel force transducer for passenger cars, SUVs and light trucks, 60 kN radial and 35 kN lateral, IP67, rated −40 to 177 °C, with slip ring or telemetry.

60 kN
Fx, Fz capacity
35 kN
Fy capacity
8.0 / 9.0 kN·m
Moment capacity
≤ 0.25 % FS
Non-linearity
  • OutputsFx Fy Fz · Mx My Mz
  • Also measuredX and Z acceleration (X, Y, Z on the LW50) · wheel speed and angle
  • Signal outputanalog · CAN · Ethernet · CAN FD and EtherCAT on the CT3

Wheel force transducer for cars and SUVs, 60 kN

The LW60 measures all the wheel forces and moments on passenger cars, SUVs and light trucks, with X and Z accelerations up to ±100 g. It is rated 60 kN (13,400 lb) on Fx and Fz, 35 kN (7,850 lb) on Fy, 8.0 kN·m on Mx and Mz and 9.0 kN·m on My, for a static weight of 1,225 kg. Non-linearity and hysteresis are 0.25 % of full scale or less, cross-axis sensitivity after correction 0.4 % or less. The IP67 transducer, Ø 342.90 × 26.67 mm, weighs 5.7 kg, operates from −40 to 177 °C and adapts to 12 in and larger wheels.

Sixteen M10 × 1.5 screws pass through the transducer into the rim adapter and twenty-four fasten the hub adapter, torqued crosswise to 81 N·m. The amplifier, matched to the transducer, aligns on a flat and carries a 20-circuit slip ring with a 512-pulse encoder; a magnetic restraint and rod hold its stator on non-steered wheels, a stator angle corrector on steered ones. With the CT3 interface box, powered at 9 to 36 V DC, the system is zeroed, its shunt calibration checked and the loads resolved into vehicle axes.

Its IP67 design suits track and off-road measurements and non-spinning test rigs. The telemetry package mounts inboard on cars and SUVs, or outboard for machinery applications.

Wheel force transducer with amplifier and slip ring assembly
Transducer, amplifier and slip ring. The slip ring and the telemetry package are swappable.

Specifications

LW60
Measured quantitiesFx · Fy · Fz · Mx · My · Mz
Force capacityFx 60 · Fy 35 · Fz 60 kN
Moment capacityMx 8 000 · My 9 000 · Mz 8 000 N·m
Max static load1 225 kg
Non-linearity≤ 0.25 % FS
Hysteresis≤ 0.25 % FS
Crosstalk≤ 0.4 % FS (after correction)
Angle resolution0.17°
Axes6
Accelerometer range100 g (X and Z)
OutputAnalog voltage · CAN · Ethernet · EtherCAT (EtherCAT available)
Signal transmissionSlip ring · Telemetry (slip ring outboard; telemetry inboard or outboard)
Shaft diameter228.6 mm (center bore)
Mounting fasteners24 × M10 × 1.5
Rim fasteners16 × Ø 10.32 mm (through)
Bolt circle255.27 mm
Rim bolt circle325.12 mm
DimensionsØ 342.9 × 26.67 mm
Weight5.7 kg
Operating temperature−40 to 177 °C
ProtectionIP67
Interface boxCT2 · CT2-TEL
VehiclesPassenger cars · SUVs · Light trucks
Rim size12 in (and larger)
Shown: LW60. Download the files

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Signal transmission

By wire: amplifier, slip ring and encoder on the wheel. Not on the LW-MC-3.5K and LW12.8-50-TEL.

Options
Accessories
Your request

Unusual bolt pattern, motorsport hub, agricultural wheel: we build it around your wheel.

Resources

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