Abstract: A controller for hybrid vehicles. Embodiments disclosed herein relate to hybrid vehicles, and more particularly to controller systems in hybrid vehicles. Embodiments herein disclose a design and apparatus for a hybrid control unit and a battery monitoring sensor. Embodiments herein disclose a controller for controlling a hybrid automotive vehicle including an engine and an electric motor as drive power sources for driving the vehicle, and an electric generator operable by the engine to charge a battery while the engine drives the vehicle. Embodiments herein disclose a control unit integrated with the battery sensor.

Abstract: Estimation of SOC of a lead-acid battery. Embodiments herein disclose methods and systems for determining State of Charge (SOC) of a lead acid battery in a vehicle. Embodiments herein disclose methods and systems for determining State of Charge (SOC) of a lead acid battery in a vehicle using discharge and charge correction factors. Embodiments herein disclose methods and systems for determining State of Charge (SOC) of a lead acid battery in a vehicle using a master OCV table based SOC estimation (SOCOCV) after the vehicle has been powered off, and a current throughput based SOC estimation (SOCEST) based on coulomb count integration (amp-second (As) integration) when the vehicle is operational. Embodiments herein disclose methods and systems for determining State of Charge (SOC) of a lead acid battery in a vehicle considering ageing of the battery and temperature.