This is achieved through an electric motor installed between the engine and the transmission. It engages as you accelerate or go uphill, boosting engine power until you reach cruising speed. The motor then adds necessary additional power to accelerate. However, at low speed cruise, the car runs on power from the motor alone. As you raise the acceleration, the engine switches to a higher power output and the motor provides a stronger, powerful acceleration.

When it decelerates, the IMA battery will be in recharge mode.

Meanwhile, all the electric power created by the electric motor will be stored in a compact battery box that is called the Intelligent Power Unit. It controls the electricity to and from the electric motor.

The 3-Stage i-VTEC + IMA

How is the 4th Generation IMA any different than the previous ones?

The newly developed IMA works hand in hand with the 1.3 i-VTEC engine to output more power, better fuel- efficiency, and lower emissions without even compromising the performance.

The Intelligent Power Unit

An Intelligent Power Unit (IPU) stores electric power in a compact battery box and controls the flow of electricity to and from the electric motor.

The Hybrid Dual Scroll Air Conditioning Compressor

The Honda Civic Hybrid uses a dual scroll air-conditioning system. It reduces the load on the engine by using a combination of engine power and electric motor to drive two air-conditioning systems.

On normal days, the engine-driven compressor acts as the sole source of air-conditioning and the motor-driven acts when the car is idle-stopped.

On hot days, both compressors will provide maximum cooling by using the petrol engine and the electric motor. But, the Honda Civic Hybrid’s idle-stop feature will be temporarily disabled.

Actual model may vary in detail from images shown.

Specifications may vary and are subject to change without prior notice.