18489123. HYBRID VEHICLE ENERGY BALANCE CONTROL SYSTEM FOR CO2 REDUCTION (FCA US LLC)
HYBRID VEHICLE ENERGY BALANCE CONTROL SYSTEM FOR CO2 REDUCTION
Organization Name
Inventor(s)
Zhentao Xie of Auburn Hills MI US
Paolo Olivieri of Pecetto Torinese IT
Rudolph Kharpuri of Auburn Hills MI US
Pier Luca Digristina of Turin IT
HYBRID VEHICLE ENERGY BALANCE CONTROL SYSTEM FOR CO2 REDUCTION
This abstract first appeared for US patent application 18489123 titled 'HYBRID VEHICLE ENERGY BALANCE CONTROL SYSTEM FOR CO2 REDUCTION
Original Abstract Submitted
A hybrid electric vehicle (HEV) includes an internal combustion engine, an electric traction motor, a belt starter generator (BSG) unit, a low voltage battery system including a low voltage battery, and a high voltage battery system including a high voltage traction battery. A DC/DC converter is configured to convert high voltage from the high voltage battery system into low voltage to charge the low voltage battery and support low voltage loads. A powertrain control system configured for reducing HEV CO2 emissions includes a controller configured to control an output voltage setpoint of the DC/DC converter and the BSG unit. The controller is configured to selectively increase or decrease the output voltage setpoints of the DC/DC converter and/or the BSG unit to reduce high voltage battery power consumption to thereby avoid or delay turning on the internal combustion engine to reduce CO2 emissions.