Status: concept.

Purpose; Semi Trailers, B-double & B-triple combinations, double & triple Road Trains.

Any axle can be replaced with an electric driven differential unit. The benefits being added traction on slippery surfaces, faster take off from standing starts, reduced fuel consumption and engine/driveline wear.

We use standard truck diffs fitted with a close coupled electric motor to supply additional drive to the trailer combination.

Wheels coloured red are suggestions for electric drive. One axle would be enough power to produce a favourable outcome.

Operation: 

Proposed modes of operation for the hybrid vehicles include:

•Truck leaves terminal with fully charged batteries via the electricity grid.

•Acceleration using combination diesel and electric assistance.

•Highway cruising using diesel only and cruise control.

•Hill climbing, cruise control engages electric assistance to maintain road speed. Diesel rpm's and throttle position remain static.

•Down hill, regenerative braking slows the vehicle and recharges the batteries. Diesel engine rpm's remain low, no over revving. Braking also recharges batteries and saves brake wear.

•Quiet mode, electric assist is engaged to maintain road speed while diesel engine only idles. This is for travelling slowly through towns and cities to reduce noise pollution.

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Single or twin motor units are available.

                                                

single motor axle                    dual motor axle                     single drive diff/axle

           

control box    Ultracapacitors    cooling unit    motor/generator

             

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