Bosch worked with Volkswagen to apply the injection technology found in the three-cylinder engine with 1.0 liter displacement in Volkswagen’s eco up!. Bosch supplies the engine management system, injectors for natural gas and gasoline, the gasoline rail, and the lambda sensor system, as well as a mean pressure temperature sensor. The vehicle can run either on gasoline or on CNG. Its engine delivers 50 kW (68 horsepower) at 6,200 rpm, reaching a maximum torque of 90 Nm at 3,000 rpm.
In the New European Driving Cycle (NEDC) the eco up! consumes just 2.9 kilograms of natural gas over 100 kilometers, corresponding to CO2 emissions of just 79 grams per kilometer. Burning natural gas produces up to 25 percent less CO2 than gasoline, making CNG a particularly eco-friendly form of fuel, and the vehicle’s carbon footprint is even smaller when running on biomethane.
Bosch has already realized other downsizing concepts that work in conjunction with turbocharging to further improve the efficiency and power of natural gas engines.
Source: Bosch
