NANO

GENERAL 1 1. INTRODUCTION TO CNG SYSTEM: In addition to the full capacity of petrol the Nano Bi- fuel CNG comes with an additional CNG fuel choice for the running. CNG or Compressed Natural Gas is a safe and environment friendly fuel which is stored under high pressure in the CNG storage tank. CNG is non-toxic, non-corrosive and lead free gas which is produced by refinery fractionation of crude oil or occurs naturally during oil extraction process. CNG fuel system and the components meet the rigid emissions and safety criteria. CNG-fuelled vehicles are as safe as those with other fuel systems. Mode Selection For CNG operation, press the Fuel Selector Switch provided on the dashboard. The fuel change over happens automatically. The switching between fuels (Petrol-CNG-Petrol) can be done at any time, even while running. Nano bi-fuel runs intermittently in petrol mode. Hence it is must to have sufficient petrol in petrol tank at all times during running. 2. BENEFITS OF CNG:  CNG serves as an alternative to petrol. Due to its low hydrocarbon emissions, CNG is widely considered to be an environmentally viable alternative.  Lower maintenance costs when vehicles run on CNG.  With rising petrol costs, CNG has seen the competitive edge with its lower price and high availability.  Vehicle life-span can be prolonged since there is no carbon generated during combustion and hence, engine and the oil in the engine are much cleaner. 3. FEATURES OF CNG BI-FUEL SYSTEM: Safety: Compliant with all prevailing Indian Regulations makes the CNG Bi-fuel system more robust and safe to drive. The important safety features are: Important safety features are :  Automatic shut-off safety Solenoid (Tank solenoids and pressure regulator solenoid) immediately in the event of - 1. Broken fuel pipes ( high pressure and low pressure pipes) 2. Engine stalling 3. Fault Detection  The EMS is equipped with patented gas leakage detection strategy which enables detection of gas leakages in the fuel supply system. Leakage detection strategy is enabled during the following operating conditions : 1. Before switching from Petrol to CNG. 2. - Engine running in petrol mode. 3. - During the power latch.  Fault detection of EMS and fuel supply system 1. Electrical diagnosis (open / short circuit) of EMS components, compliant with Indian On Board Diagnosis System 2(I-OBD 2). 2. Functional diagnosis – regulation supervision, engine parameters monitoring. 3. Intelligent Fault tolerant system with limp home mode.