The case for Class 8 hybrids

Hybrid technology may not be the best solution for all heavy-truck applications, but a Caron Engineering expert explains how it can still benefit Class 8 vehicles.

The conventional wisdom is that Class 8 vehicles have been so well optimized for their vocation that there is little opportunity for generating significant benefits with hybrid technology. The high power levels and long ranges required of these vehicles make a pure battery-electric implementation impractical.

Series-electric powertrains have performed well in transit bus applications; however, for line-haul truck applications, series powertrains fall short in efficiency compared to conventional mechanical powertrains that have been well optimized for operation over a relatively narrow speed and load range.