37Nm Autonomous Rack System

Our electric steering rack can be used for manual (when optional EPAS16 CTS is added) or autonomous applications and is designed to replace the original steering rack.

  • Ideal for small autonomous vehicles such as people mover pods and delivery vehicles.
  • Complete powered rack to replace the existing manual steering rack.
  • Input shaft allows manual as well as autonomous control.
  • System can provide up to 37Nm / 26.5ft.lb of torque to the rack pinion.
  • CAN Bus control using one of the three following options:
    • Sending a simulated torque sensor signal.
    • Sending a +/- duty cycle demand for direct control of the EPAS motor.
    • Sending heading and gain request for the EPAS motor to steer to.

The system comprises the following parts:​

EPR02
Powered Rack 37Nm
EPAS18A
Autonomous Ultra ECU
EPAS19
Ultra Wiring Harness
PNA1141
1080 Degree Position Sensor

Optional Extras:

EPAS07b
Ultra Assembly Straight Coupler
EPAS08b
Ultra Assembly Universal Joint
EPAS16
Contactless Torque Sensor (CTS) DTM Connector

Technical Specification

Operating Voltage
Nominal 13.8V DC
Maximum current draw
80 Amps
Powered Rack Weight
6.3kg / 13.89lb
Maximum Torque Assist On Pinion
37Nm / 26.5ft.lb
No Load Rack Travel Speed
110mm per second
IP Rating (with steering gaiters fitted)
IP65
Operating Temperature
-20 to 120°C / -4 to 248°F
Motor Rated Power
220 Watt
Input Pinion Spline Pattern
9/16” x 36
Rack Travel
109.65mm
Rack Ratio
64.5mm per pinion revolution
Lock To Lock
1.7 turns
Rack Bar Threads
M16 x 1.0

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