Automatic Engine Start-Stop Controls

Fleet management is increasingly embracing technologies that reduce carbon emissions and optimize operational costs. The AESS technology is one such innovation that has shown promise in enhancing sustainability and reducing the TCO.

AESS Technology and Sustainability

AESS technology automatically turns off an engine when a vehicle comes to a halt and restarts it when necessary. This mechanism leads to considerable fuel savings, thereby reducing carbon emissions.

  • Fuel Efficiency and Emission Reductions: Multiple studies indicate that AESS can improve fuel efficiency by up to 10% in city traffic. Consequently, this directly results in a similar percentage reduction in CO2 emissions.
  • Impact on Air Quality: Apart from CO2 reduction, AESS significantly reduces the emissions of harmful particulates and nitrogen oxides (NOx), contributing to improved air quality in urban environments.


AESS Technology and Total Cost of Ownership

AESS technology also contributes significantly to reducing TCO, as detailed below.

  • Fuel Cost Savings: As AESS improves fuel efficiency, there are substantial savings in fuel costs. This contributes significantly to reducing operating expenses over a vehicle's lifetime.
  • Maintenance Costs: AESS can also lower maintenance costs. For instance, less engine running time may result in extended engine life, less frequent oil changes, and decreased wear and tear.


Comparison to Standard ICE Technology

In contrast, conventional ICE vehicles offer none of these advantages. While ICE technology is well established and understood, it is inherently less efficient, with around 60% of the energy in fuel lost as waste heat. This inefficiency results in higher fuel costs and CO2 emissions compared to AESS equipped vehicles.

  • Fuel Costs and Emissions: The higher fuel consumption of ICE vehicles results in higher operating costs and CO2 emissions compared to AESS technology.
  • Maintenance and Lifespan: Conventional ICE technology typically involves higher maintenance costs and may have a shorter engine lifespan compared to AESS technology.



The integration of AESS technology in commercial fleet vehicles presents a compelling case for both financial and environmental sustainability. Compared to traditional ICE technology, AESS reduces fuel consumption, emissions, and maintenance costs, leading to a lower TCO and a reduced environmental footprint.