Hybrid powertrain explained

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[img] Ford Escape E85 flexible-fuel Plug-in hybrid exhibited at the 2010 Washington Auto Show (D.C.). (by Mariordo)

A hybrid powertrain, is the combination of different power sources and components that work together to propel a hybrid vehicle.

It typically includes the following key components:

  1. Internal Combustion Engine (ICE): The internal combustion engine is the traditional gasoline or diesel engine found in a hybrid car. It provides power to the vehicle in the same way as a conventional car engine. However, in a hybrid, the internal combustion engine is often smaller and more fuel-efficient, as it works in conjunction with the electric motor.

  2. Electric Motor: The electric motor is a critical component of a hybrid car engine. It is powered by an electric battery and can assist the internal combustion engine by providing additional torque and power when needed. In some hybrid models, the electric motor can even operate the vehicle independently at low speeds or for short distances.

  3. Hybrid Battery: The hybrid battery, also known as the traction battery, stores electrical energy for the electric motor. It is rechargeable through regenerative braking (capturing energy during deceleration) and sometimes by plugging the vehicle into an external power source in the case of plug-in hybrids.

  4. Power Control Unit (PCU): The power control unit manages the flow of electricity between the battery and the electric motor, as well as between the battery and the internal combustion engine. It ensures that power is distributed efficiently and optimally based on driving conditions.

  5. Transmission: The transmission in a hybrid car can be different from that of a traditional vehicle. It is designed to manage the power from both the internal combustion engine and the electric motor and ensure smooth transitions between them.

  6. Regenerative Braking System: Hybrid cars often feature regenerative braking systems that capture and store energy when the vehicle decelerates. This energy is then used to recharge the hybrid battery, improving overall efficiency.

The hybrid car engine is designed to work in synergy, with the internal combustion engine and electric motor complementing each other to provide better fuel efficiency and lower emissions compared to conventional vehicles. The control systems in a hybrid car engine manage the power sources to maximize efficiency and in various driving conditions.

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