PARIS – French car maker PSA Peugeot Citroen introduced a full-hybrid powertrain that uses petrol and compressed air.
The hybrid system, dubbed Hybrid Air, combines a petrol engine, a unit to store energy in the form of compressed air, a hydraulic motor-pump assembly and an automatic transmission working with an epicyclic gear train, PSA said.
In response to the need for energy-efficient vehicles, PSA claimed that the engine offers fuel economy of 2.9 liters of fuel per 100 kilometers (81 miles per gallon) and emits just 69 grams of carbon dioxide per kilometer. It also generates 45-percent savings in city driving, offering a 90 percent increase in comparison with conventional engines.
This full-hybrid gasoline solution represents an important step towards the two liter per hundred kilometer car by 2010, said Philippe Varin, PSA's CEO, in a statement.
PSA said the smart control system adapts the operating mode to the driver's commands and optimizes energy efficiency in three different modes: ZEV (Zero Emission Vehicle), petrol internal combustion and combined.
The system is said to automatically select the most efficient mode to each situation.
PSA said its Hybrid Air technology, for which 80 patents have been filed, can fit into small to midsize cars without any loss to storage space.
The project, cofinanced by the French state, also gathers auto parts specialist Bosch and Faurecia.
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