In order to contribute to the resolution of global environmental problems and to respond to the issue of diminishing resources, the Civic IMA, a hybrid passenger automobile was developed to achieve both low emissions and low fuel consumption. The hybrid system takes the conventional Honda IMA (Integrated Motor Assist) system as its foundation. 4-cylinder, 1.3L SOHC, 2-plug engine i-DSI (DSI: Dual and sequential Ignition) has been selected. In addition, a cylinder idling system to increase The amount of electrical energy regenerated during deceleration has been adopted. The ultra-thin DC brushless motor has been modified with its magnetic circuit to improve maximum regenerative torque by approximately 30%. Thanks to a new power train, low fuel consumption of 4.9 L/100 km (UDC+EUDC combined), CO2 emissions of 116 g/km are achieved. Low emissions technology includes the adoption of a lightweight stainless steel exhaust, and new engine air-fuel ratio controls. These technologies have made it possible to achieve low emission levels that meet EU2005 (Euro-IV) regulation. In addition, an IPU (Intelligent Power Unit) that combines a PCU (Power Control Unit) controlling the IMA system with a Ni-MH battery can be installed behind the rear seats, as it is quite compact. This has made it possible to have a 5-passenger vehicle with trunk capacity on a par with the Civic, upon which this vehicle was based.
Power-train concept for a modern hybrid vehicle
Antriebskonzept eines modernen Hybrid Fahrzeugs
2003
9 Seiten, 13 Bilder, 6 Quellen
Conference paper
English