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Electric Power Assisted Steering (EPAS)

Ultimate Power Steering has been appointed as the distributor for DC Electronics,
Electronic Power Assisted Steering (EPAS) products
in Australia and New Zealand as at 12th Oct 2011

DC Electronics

DC Electronics is pleased to announce that it has appointed Ultimate Power Steering as the distributor of its Electronic Power Assisted Steering (EPAS) products.

DC Electronics Managing Director David Cunliffe comments: “We are committed to servicing the global motorsport industry and working with the team at Ultimate Power Steering allows us to continue to fulfill that commitment.” DC Electronics has developed fully integrated, standalone EPAS systems for both competition and road use. They are compact units, requiring only a battery connection to work and have a substantial weight saving advantage over hydraulic systems.

DC Electronics has 15 years’ experience in the motorsport industry. The company has production facilities in both the UK and North America, ensuring it is at the forefront of innovation and technology on a global scale. Their EPAS systems have been successfully installed on touring cars, rally cars, endurance vehicles and F1 Powerboats. Click Here to visit DC Electronics web site.

Ultimate Power Steering Company Director Warwick Hutchinson comments: “We are delighted to be working with DC Electronics as a distributor of their products. They have an excellent reputation within the motorsport industry and we are looking forward to generating some excellent results.”

What are the benefits and how does the Electric Power Assist Steering work?

How it works

  • The EPAS system is installed into the existing steering column.
  • An electric motor and torque sensor are fitted inside with the steering column.
  • The torque sensor monitors the amount of force applied by the steering wheel.
  • This signal is fed into the EPAS factory ECU where the motor delivers the appropriate amount of assistance to power the steering rack or box.

Benefits

  • Small compact units, requiring only a battery connection to work.
  • No messy hydraulic connections or systems to bleed.
  • Weight saving advantage over hydraulic systems.
  • Reduced mechanical drag on engine compared to hydraulic engine driven pumps.
  • Built-in fail-safe which allows the system to revert to conventional steering in the unlikely event of a fault occurring.

The below video shows an installation of our EPAS Kit-1 into a Nissan Skyline

We Stock (EPAS) systems that have been developed by Ultimate Power Steering and DC Electronics.

These systems are available for Motor Sport applications in a few different levels.

Basic Motorsport Kits (We have 2 Versions available)

EPAS Kit – 1 (With Blank Input Shaft)

 epas-kit-1-electric-power-steering-basic-kit-epas-kit-1-sizes.jpg

pdf-download-logo.jpg PDF more sizes of EPAS Kit-1

 pdf-download-logo.jpg  PDF Helpful Hints EPAS Kit-1

 

This system can be mounted anywhere between the steering wheel and the steering rack or steering box. The torque sensor is within the motor/Gearbox unit. The Steering Column is driven by an Electric Motor & ECU a Signal Generating Unit (SGU) is supplied so the user can adjust the steering effort to within the ECU settings. The maximum torque output of this kit is 40Nm. (The ECU can be upgraded to the Lite ECU at any stage and the maximum torque is increased to 70Nm.)

This kit is designed to help installation, a blank input shaft is supplied to allow the installer to adapt the input shaft into almost any application.

The kit contains – Motor / Gearbox unit, Input Shaft adaptor (Can be machined to fit your steering wheel / hub), Output shaft Coupling (Can be split to allow fitment to your Manual steering unit), Locking pin and safety collar, Signal Generating Unit (This allows the user to adjust the steering effort)

Speed Sensitive Upgrade        Now Available

We now have an Upgraded Loom that can be added to the EPAS Kit-1 or the EPAS Kit-2 to make the units speed sensitive. The “PSGU” simply plugs into the ECU and via a wheel speed sensor this makes the systems speed sensitive. For more information please contact us on (07) 3889 7077.

speed-sensitive-psgu-loom-info.jpg

Longer Input Shaft Upgrade “Now Available”

We now stock a longer input shaft designed to fit our EPAS Kit-1.

This longer shaft has been made to help with installation of our Basic EPAS Kit-1 systems.

The shaft is 400mm long this is 200mm longer than the shaft normally supplied in the EPAS Kit-1 the shaft can be machined to take your steering wheel or quick-release hubs.

Part No Shaft-1L

CLICK HERE for more information or to order online.

 

EPAS Kit – 2 (With Collapsible Steering Section)

 

epas-kit-2-sizes-and-extra-info-photo.jpg

pdf-download-logo.jpg PDF more sizes for EPAS Kit-2

pdf-download-logo.jpg PDF Helpful Hints EPAS Kit-2

 

This kit is the same as the EPAS Kit – 1 but the input shaft has a collapsible steering column section attached to the top of the motor / gearbox unit. This kit can be installed into road cars, but the installation will have to be approved by your engineer. The installation must be approved under the steering modification / conversion code’s LS1 or LS2 via the relevant transport approved engineer. This system also can be mounted anywhere between the steering wheel and the steering rack or steering box. The maximum torque output of this kit is 40Nm. (The ECU can be upgraded to the Lite ECU at any stage and the maximum torque is increased to 70Nm.)

This kit is designed to allow the installer to adapt the EPAS kit into almost any road car application.

The kit contains – Motor / Gearbox unit, Input Shaft with collapsible steering column section, Output shaft Coupling (Can be split to allow fitment to your Manual steering unit), Signal Generating Unit (This allows the user to adjust the steering effort)

Speed Sensitive Upgrade        Now Available

We now have an Upgraded Loom that can be added to the EPAS Kit-1 or the EPAS Kit-2 to make the units speed sensitive. The “PSGU” simply plugs into the ECU and via a wheel speed sensor this makes the systems speed sensitive. For more information please contact us on (07) 3889 7077.

speed-sensitive-psgu-loom-info.jpg

 

EPAS Kit – 4 Motorsport Assembly (EPAS Motorsport Assembly)

electric-power-steering-motorsport-assembly-sizes.jpg

This Motorsport Assembly (EPAS) system is specifically designed for the demands of the motorsport environment. By reducing the weight and removing the mechanical drag of conventional hydraulic systems, we have been able to increase performance, reduce driver fatigue and consequently cut lap times. This system is a smaller motor and gearbox assembly than the Basic Motorsport kits. There is two levels of ECU controllers, both are programmable ECU’s, they simply plug into the Motorsport Assembly EPAS motor and allows the user to adjust the range of steering effort to and allows a wider and finer range of adjustment to the basic systems. (For further details on the two ECU’s available see below)

This system can be mounted anywhere between the steering wheel and the steering rack or steering box. The torque sensor is within the motor/Gearbox unit. The maximum torque output of this kit is 70Nm.

Motorsport EPAS benefits

  • Compact standalone system
  • Steering weight adjustable via multi-position switch
  • Calibration without a laptop
  • Average power consumption only 8 amps
  • No need to upgrade alternator or battery
  • Diagnostic software available
  • Weight 6.2kg (motor and controller)

We have a few different ECU controllers Available for the Motorsport Assembly.

 

Ultra ECU (Motorsport EPAS Systems Only)

epas-ultra-ecu.jpgwiring-loom-ultra-ecu.jpg

This Ultra ECU has been designed to handle transient currents of up to 100 amps. Connection is via 2 Autosport connectors. The ECU has the same functionality of the EPAS Lite ECU, but with the following additional features:

  • CAN 2.06 interface.
  • 4 x Digital outputs.
  • 2 x Speed inputs.
  • 2 x Digital inputs.
  • 3 x Analogue inputs.
  • Internal heatsink temperature monitoring.
  • Ability to create your own steering map when optional software is used.
  • Internal temperature and peak current tell tales.

The CAN Bus can be used to control the power levels or input ground speed to make the unit speed sensitive. Information on the systems settings and performance is also available on the CAN Bus Interface.

Lightweight Assembly (EPAS Lightweight Assembly)

lightweight-epas-assembly-photo.jpg

The latest EPAS innovation from DC Electronics is the lightweight assembly. The torque sensor has been removed from the custom made gearbox assembly, making the distance between input and output spines short to aid installation.

With the torque sensor removed the unit is smaller, plus:

  • The unit can be installed with either shaft used for input or output – again making installation easier
  • No torsion bar is fitted internally making a direct connection between input and output spines. This gives the driver a much better feel for the track conditions.

Torque sensing is done by using either a clamp around or steering boss sensors, coupled to the EPAS Ultra ECU.

straight-coupler-5-8-13-16-inch-id-epas06-epa07-.jpg            universal-joint-cupling-epas08-.jpg

Also available for all systems are a range of universal joints, steering wheel bosses and interconnection shafts.

 

All these System can be purchased on our Online Store (click here)

 

3 New Electric Power Steering Column systems coming soon to help expand our current EPAS range.

 

Pro Street Column (Height Adjustable with collapsible shaft)

Pro Street MGU (Motor Gearbox Unit)

Pro Race (Smaller and more Torque than the Pro Street MGU)

More Electric Power Steering Column Options

The Pro Street system’s comes in two styles, Pro Street Column and Pro Street MGU.

Pro Street Column (EPAS70) Complete height adjustable, collapsible steering column all in one. This unit is designed to be installed in line with the existing steering column between the steering wheel and the manual steering Rack or Box. With the height adjustable and collapsible column this unit is easily approved for road use, such as classic cars, hot rods and muscle cars. The Pro Street Column has maximum torque output of 88NM (65lb Ft)

epas-pro-street-column-ultimate-power-steering-web-photo-no1.jpg

Pro Street MGU (EPAS71) This is a Shorter version of the Pro Street Column to help with installation where size may be a factor. This motor/gearbox/unit is also designed to go in line with the existing steering column between the steering wheel and the manual steering Rack or Box, being smaller it can be used in tighter installations, where the size of the unit is a factor. The Pro Street MGU has maximum torque output of 88NM (65lb Ft)

epas-pro-street-mgu-ultimate-power-steering-web-photo-no1.jpg

Both Pro Street system’s function in the same way but offer a choice of packaging / size options depending on your application.

MODE OF OPERATION for Pro Street Systems
Once the Pro Street system’s have been installed there are two different ways the system can be used:

1. Manual Mode – The weight or “feel” of steering can adjusted by turning the supplied potentiometer.

2. Wheel speed Mode – A digital wheel speed input signal can be used to increase the level of assistance at parking speeds whilst firming up the steering at higher speed.

Both of these systems come complete with a wiring harness and user instructions.
There is also a range of optional extras to assist with the installation of your system.

OPTIONAL ACCESSORIES for Pro Street Systems (EPAS70 & EPAS71)
EPAS65 – Output Universal Joint (All)
EPAS63 – Input Universal Joint (EPAS71 Only)
EPAS64 – Input Straight Coupler (EPAS71 Only)
EPAS73 – Steering Wheel Boss (EPAS70 Only)
EPAS75 – Wheel Speed Sensor

Pro Race (EPAS60) The EPAS Pro Race steering system is designed to be an entry level electric power assisted steering system for competition use only. This Column is smaller to help with installation where size may be a factor. This motor/gearbox/unit is also designed to go in line with the existing steering column between the steering wheel and the manual steering Rack or Box. The Pro Race MGU has maximum torque output of 110NM (81lb Ft)

epas-pro-race-mgu-ultimate-power-steering-web-photo-for-website.jpg

The Pro Race system comprises of the following components:-
EPAS60 Pro Race MGU (Motor Gear Box Unit)
EPAS61 Pro Race ECU (Electronic Control Unit)
EPAS62 Pro Race Wiring Harness

MODE OF OPERATION for Pro Race System
The Pro Race MGU like all of our EPAS systems is installed in line between the steering wheel and the steering rack or steering box, the internal torque sensor detects the amount of driver steering input and then engages the electric motor to assist.

The wiring harness comes complete with a 6 position rotary control, off and then 5 levels of assistance fixed by factory set maps.

There is also a range of optional extras to assist with the installation of your system.

OPTIONAL ACCESSORIES for Pro Race System (EPAS60)
EPAS65 – Output Universal Joint
EPAS63 – Input Universal Joint
EPAS64 – Input Straight Coupler

Stock arriving soon call to pre-order your unit Now – Ph (07) 3889 7077

 

 

 

 

 

Call us now to order your EPAS Kit (07) 3889 7077

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dc-electronics

Exclusive Distributor Australia & New Zealand For Electric Power Assisted Steering (EPAS) Kits for Motor Sport Applications.