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Questions and Answers
What is the reduction in Carbon Monoxide (CO) pollutants in BS-VI emission standards compared to BS-IV?
What is the unit of measurement for pollutants in BS-VI emission standards?
Which of the following pollutants has the highest reduction in BS-VI emission standards compared to BS-IV?
What is the standard that BS-VI is aligned with?
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Which ministry issued a notification in 2016 related to BS-VI norms?
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What is the purpose of implementing stricter emission standards like BS-VI?
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Which of the following pollutants is measured for the first time in BS-VI emission standards?
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What is the reduction in Evapo pollutants in BS-VI emission standards compared to BS-IV?
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What is the chemically correct ratio of Air to Fuel in an ideal combustion process?
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What is the major pollutant from Diesel Driven Vehicles?
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What is the main component of the Emission Control System in a BS-VI vehicle?
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What is the purpose of On-Board Diagnostics (OBD) in BS-VI vehicles?
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What is the significant reduction in BS-VI norms compared to BS-IV?
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What is the major concern for 2-wheeler emissions?
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What is the year when Bharat Stage II (BS-II) emission norms were introduced in India?
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What is the purpose of the Fuel Injection System in a BS-VI vehicle?
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What is the proposed year for the implementation of Bharat Stage VI-OBD2 norms in India?
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Why did India skip Bharat Stage V (BS-V) emission norms?
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What is the implementation timeline for BS-VI norms in India?
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What is the primary function of the Engine Oil Temperature Sensor in a BS-VI compliant vehicle?
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Which of the following is NOT a part of the On-Board Diagnostics (OBD) system in BS-VI vehicles?
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What is the primary function of the Bank Angle Sensor (BAS) in a BS-VI compliant vehicle?
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What is the purpose of the Fuel Injector in a BS-VI compliant vehicle?
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Which of the following sensors is used to detect intake air pressure in a BS-VI compliant vehicle?
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What is the purpose of the On-Board Diagnostics (OBD) system in BS-VI vehicles?
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Which of the following is a component of the Fuel Injection System in a BS-VI compliant vehicle?
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What is the primary function of the Electronic Control Unit (ECU) in a BS-VI compliant vehicle?
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What is the significance of the BS-VI norms in India?
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Study Notes
BS-VI Implementation in India
- BS-VI will be implemented in two stages in India:
- Stage 1: Applicable for all vehicles on or after 11th April 2020
- Stage 2: Applicable for all vehicles on or after 1st April 2023
- Introduction of On-Board Diagnostics (OBD) - Stage 1:
- O2 sensor
- Engine Oil Temp Sensor
- Malfunction Indicator Lamp
- Introduction of Fuel Injection (FI)
- Introduction of On-Board Diagnostics (OBD) - Stage 2:
- Misfire Detection
- O2 Sensor deterioration Detection
- Catalytic converter monitor
Fuel Injection System
- Basic Fuel Injection System:
- ENGINE CONTROL UNIT - ECU
- To calculate fuel injection volume and timing
- Real Time Mileage Indicator –RTMI
- Fuel Pump: To pressurise fuel
- Pressure Regulator: To adjust fuel pressure
- Fuel Injector: To inject fuel in throttle body
- Sensors:
- Throttle Position Sensor - TPS
- Manifold Absolute Pressure Sensor - MAP
- Intake Air Temperature Sensor - IAT
- Crank Position Sensor - CPS
- Engine Oil Temperature Sensor - EOT
- Vehicle Speed Sensor - VSS
Emission System
- Process:
- Fuel + Air → Useful energy and Undesirable emissions
- Emission Equation:
- C8H18 + 12.5 (O2+3.76N2) → 8CO2 + 9H2O + 47N2
- Air to Fuel Ratio:
- Chemically correct ratio: 15.05:1
- Actual ratio: 14.7:1
- Effects of varying oxygen levels:
- Less oxygen: CO and HC increase
- Higher oxygen at higher temperature: NOx increases
- Pollutants:
- CO
- HC
- NOx
- Particulate Matter (PM)
- Evaporative Emissions
Automobile Pollution
- Major Pollutants:
- CO
- HC
- NOx
- PM
- Classifications for 2-wheeler emissions:
- Exhaust Emissions
- Evaporative Emissions
Chronology of EMISSION NORMS
- Indian Emission Standards for Vehicles:
- Euro 1 (2000)
- Euro 2 (2005)
- Euro 3 (2010)
- Euro 4 (2017)
- Euro 5 (skipped)
- Euro 5 (2020)
- BS-VI:
- Introduced in 2020
- Significant reduction in HC and NOx limits
- NMHC introduced
- Misfire detection and O2 Sensor monitoring introduced
- Catalytic converter monitoring introduced
BS VI Emission Spec Details
- Pollutants:
- CO
- HC
- NOx
- NMHC
- PM
- Reduction in pollutants:
- CO: 30%
- HC: Started first-time measurement
- NOx: 85%
- NMHC: Started first-time measurement
- PM: Started first-time measurement
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Description
Learn about the implementation of BS-VI emission standards in India, including its stages and features like On-Board Diagnostics and Fuel Injection.
