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The steering torque sensor measures the torque applied by the driver on the steering wheel. When the steering wheel is turned, a small torsion bar inside the unit allows the shaft to twist slightly, deforming a magnetic field. The sensor detects the amount of torque applied by measuring the change in the magnetic field.

The harder the steering wheel is turned, the greater the change in magnetic field, the greater the power assist.

The steering assist consists of a powerful heavy duty electric motor that is highly efficient and puts minimum strain on the vehicle’s electric circuit. The motor is designed that possible malfunctioning does not impact the mechanical linkage between the steering rack and the steering wheel. A reduction gear keeps the load on the motor at a minimum with minimum electric load.

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The control system consist a Vehicle Interface Unit that collects the data from various sensors and sends them to an OEM ECU. The ECU has a set of algorithms that calculates the amount of assist torque required based on steering force, steering angle and the speed of the vehicle which in turns signals the assist motor to apply the appropriate amount of torque to the steering shaft.

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The EZ EPS system has been designed using highly tested components from a world renown manufacturer to ensure reliability and safety . The ECU constantly monitors the operation and in the event of a fault is detected by the ECU the system will default to zero state but still allow the vehicle to be driven albeit without steering assistance until the fault can be rectified. (EMC test of the control system is attached)

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The wiring and control system are designed separately for each car and are fused by a 40 Amps in line fuse direct to the positive terminal of the battery using a 6mm² wire to minimize the strain on the original vehicle wiring.

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