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The high-efficiency motor assist system delivers improved motor performance in a more compact, lightweight unit.
Our ultra-slim DC brushless motor, which boasts the world's highest output density and practical efficiency,
is now even more efficient.
Asymmetrical winding of the stator for increased space efficiency and other internal improvements to the motor's magnetic coils in particular have been made without increasing the unit's external dimensions. The rotor has also been constructed using different materials to match the specific performance requirements of its inner section, which transmits torque, and its outer section, which is in contact with the magnetic coils. A sintering fusion process is used to firmly bond the different materials together. These improvements result in 30% greater assisting and regenerative torque than the previous model. |
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| All figures represent comparisons with the previous Honda IMA System. |
Comprehensive improvements to engine and motor efficiency deliver outstandingly practical drive characteristics that combine fuel economy of 29.5km/L with torquey low-to-mid-range performance.
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| Performance |
Civic Hybrid
(with Honda Multimatic S transmission) |
| Engine |
Maximum output
(kW[PS]/rpm)1 |
63[86]/5,700 |
Maximum torque
(N-m[kg-m]/rpm)1 |
119[12.1]/3,300 |
| Motor |
Maximum output
(kW/rpm)2 |
10/4,000 |
Maximum torque
(N-m[kg-m]/rpm)2 |
49[5.0]/1,000 |
Fuel consumption (km/L)
10-15 mode (Japanese Transport Ministry figures) |
29.5 |
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1 Net values: Measured with engine in vehicle
2 Honda in-house testing |
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Civic Hybrid: high output and fuel economy under all driving conditions
The PCU (Power Control Unit) carries out precise energy management to switch the motor between motor assist, motor off, and regeneration modes depending on engine speed during acceleration, cruising, and deceleration. This achieves both high output and high fuel economy under all driving conditions, from city streets to freeways. In addition, idle stop shuts the engine off when the vehicle is not in motion, to further improve fuel economy and reduce emissions. |
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• Acceleration (engine + motor assist)
During acceleration when engine load is high, the motor provides a powerful boost, thereby reducing fuel consumption. |
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• Cruising (engine only)
The motor is idle. The highly efficient 1.3L i-DSI engine delivers stable, fuel-efficient driving performance. |
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• Deceleration (cylinder idle mode/
IMA battery charging)
The motor uses the energy dissipated during deceleration to generate electricity to recharge the battery. The VTEC Cylinder Cut-off System reduces engine friction during deceleration for more efficient regeneration. |
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• At rest (idle stop)
When idling, the engine shuts off automatically, increasing fuel economy and reducing emissions.
The engine may not shut off under certain conditions. |
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