eFan Micro Hybrid Systems

AVID’s eFan Micro Hybrid System (MHS) replaces the conventional engine cooling system. The AVID MHS reduces parasitic loads on the engine and allows operating temperature to be optimised and reduces fuel consumption.


Thermal systems electronic cooling FAQs

eFan Micro Hybrid Brochure


AVID has worked closely with EMP in North America since the inception of the technology and has pioneered its development outside of the USA. There are currently over 15,000 systems installed on vehicles around the world delivering fuel savings of up to 15%; there has been a corresponding reduction in greenhouse gas and toxic exhaust emissions.

The system also addresses some of the major operational issues associated with operating heavy vehicles such as buses and earth moving machinery. For example, breakdowns due to overheating, excessive time spent on cooling system maintenance, vehicle fires are caused and accelerated by leaking fan drive hydraulic systems and low temperature operating cycles on heavy diesel engines.

Only the AVID eFan MHS uses our ultra high performance electric fans, our advanced electronic controller and specially designed heat exchangers to create a highly efficient thermal management system. AVID is committed to helping its customers:

  • Save Money by Improving Fuel Consumption
  • Reduce Exhaust Emissions
  • Reduce Vehicle Noise
  • Improve Vehicle Performance
  • Reduce Maintenance Cost & Vehicle Downtime
  • Eliminate Fire Risks Associated with Hydraulic Fan Drive Systems

AVID’s skilled technicians install and provide round the clock technical support for Micro Hybrid Systems on heavy duty vehicles such as buses, mining and earth moving machinery.

In conjunction with the eFan Micro Hybrid System the vehicle electrical system can be upgraded with a Power Series Alternator.

In addition to saving fuel the system also provides additional benefits to the vehicle operator. The electric fans have a reversal switch which can clear trapped debris out of the heat exchangers. This means that the cooling pack can be kept much cleaner which not only leads to a reduction in overheating but also increases the life of the heat exchanger.

The risk of damaging the heat exchangers during cleaning is also greatly reduced. Optimising the engine operating temperatures can also reduce component wear and tear and extend MTBF for major units.

Improved engine thermal management means improved operation of exhaust after-treatment systems. Improving real world performance of these systems by ensuring the engine reaches its optimum operating temperature faster and stays there, unlike the conventional systems which often result in poor temperature control and low temperature operation of the engine.