To measure the efficiency of the whole Engine + Transmission,
you must travel a circuit with a
torque recorder connected to the wheels

 
The result (positive torque - negative torque) compared to actual fuel consumption will measure the true efficiency of the wole Engine + Transmission
 
The efficiency of the whole Engine + Transmission of a vehicle is often below 10 %.

The efficiency of the whole Engine + Transmission of a vehicle is influenced by the mass of the vehicle.

A recycling system of the negative energy that would be perfect (100% efficient) would result in efficiency of whole Engine + Transmission not sensitive to weight, decelerations compensating accelerations

 

1. Efficiency of the whole Engine + Transmission.

 

 

 

 

 

 

 

 

 

 

2. Influence of vehicle mass, energy and useful energy consumed in a circuit