Control Variables

The control variables connect various ECUs with each other and fall in one of the three categories:

i.  mechanical

ii.  electrical

iii.  discrete

The control variables falling in the mechanical category are:

• All the variable related to ICE
• Gear ratio
• Rpm of each rotational component

The control variables falling in the electrical category are:

• Currents in the batteries, inverters and EM
• Voltages across EM, inverters and battery terminals
• EM torque

The variables are like yes/no or on/off and HEVs have a few such variables such as:

• EM mode: motor or generator?
• Gear ration: which of the n available gears?
• Clutch: engaged or disengaged

 

 

 

References:

[1]. M. Ehsani, Modern Electric, Hybrid Electric and Fuel Cell Vehicles: Fundamentals, Theory and Design , CRC Press, 2005

[2] A. E. Fuhs, Hybrid Vehicles and the Future of Personal Transportation , CRC Press, 2009