The air hybrid powertrain from Citroen, which is expected to be unveiled at the Geneva Motor Show next month promises a reduced environmental impact and more affordable price. The hybrid powertrain, named N-Air-Gy will have a reduced environmental impact than other conventional petrol-electric hybrids.
Hybrid Air, co-developed with automotive technology developer Bosch, combines a small-capacity petrol engine with a compressed air tank, a hydraulic motor and an automatic transmission.
The Citroen C3 prototype sports a combined fuel consumption of 2.9 liters per 100 km and its average CO2 emission will be 69 grams/ km. According to the company, the car moves using a hydraulic compressed air system and it can be recharged using regenerative brakes.
The Hybrid Air will be able to operate in three different driving modes, such as pure-electric air mode, petrol-only mode, and a combination of the two offering the highest performance.
Citroen says that air mode operated up to speeds of 70km/h and it will be available between 60-80 percent of urban driving time.
The petrol mode is for high-speed driving conditions where as the hybrid mode is useful when strong acceleration is needed. This mode delivers a 90kW peak output.
The air hybrid system is more suitable for smaller vehicles and it will be cheaper than a similar vehicle, which holds a standard hybrid powertrain.