METHOD AND APPARATUS FOR MEASURING REDUCTION OF GREENHOUSE GAS BY IDLING STOP

• US 20100147059A1
• Filed: 12/07/2009
• Published: 06/17/2010
• Est. Priority Date: 12/16/2008
• Status: Active Grant

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: SON, Myunghee
• Granted Patent: US 8,037,741 B2
• Time in Patent Office: Days
• US Class Current: 73/114.520
• CPC Class Codes: G01M 15/042 by monitoring a single specific parameter not covered by groups G01M15/06 - G01M15/12

Abstract

Provided are a method and an apparatus that make is possible to measure the amount of greenhouse gas reduced for the stop time of an engine stopped while a vehicle idles. A first amount of fuel consumed in an engine is measured before the engine of a vehicle idling stops. A second amount of fuel consumed for restarting the engine, which is stopped, by idling of the vehicle is measured. Exhaust reduction of greenhouse gas is calculated from idle stop of the vehicle to engine restart, on the basis of the first and second amount of fuel consumed and an engine stop-continued time from an ECU.

Claims

1. A method of measuring reduction of greenhouse gas by idling stop, comprising:

measuring a first amount of fuel consumed in an engine before the engine of a vehicle, which is in idling state, stops, by a fuel consumption amount measurer;

measuring a second amount of fuel consumed for restarting the engine, which is stopped, by the fuel consumption amount measurer; and

calculating exhaust reduction of greenhouse gas by a greenhouse gas exhaust reduction calculator from idle stop of the vehicle to engine restart, on the basis of the first and second amount of fuel consumed and an engine stop-continued time from the outside.

2. The method of measuring reduction of greenhouse gas by idling stop according to claim 1, wherein the measuring of the first amount of fuel consumed measures the first amount of fuel consumed on the basis of sensing information from a sensor that senses the flow rate of fuel that flows into the engine right before the engine is stopped.

3. The method of measuring reduction of greenhouse gas by idling stop according to claim 1, wherein the measuring of the first amount of fuel consumed measures the first amount of fuel consumed on the basis of an injector-driven time from when the vehicle idles to when the engine is stopped.

4. The method of measuring reduction of greenhouse gas by idling stop according to claim 1, wherein the measuring of the second amount of fuel consumed measures the second amount of fuel consumed on the basis of sensing information of a sensor that senses flow rate of fuel that flows into the engine to restart the engine.

5. The method of measuring reduction of greenhouse gas by idling stop according to claim 1, wherein the measuring of the second amount of fuel consumed measures the second amount of fuel consumed on the basis of an injector-driven time until the stopped engine is restarted.

6. The method of measuring reduction of greenhouse gas by idling stop according to claim 1, wherein the calculating the exhaust reduction of greenhouse gas calculates the exhaust reduction of greenhouse gas on the basis of the following Formula 1,

exhaust reduction of greenhouse gas by idling stop=a×

(amount of fuel consumed during idling−

amount of consumed fuel exhausted as a result of idling stop−

amount of fuel consumed for engine restart) 

 

(Formula

     1)

(In Formula 1, the amount of fuel consumed in idling is calculated by multiplying the first amount of fuel consumed by the engine stop-continued time, the amount of consumed fuel exhausted as result of idling stop is “

0 (zero)”

, the amount of fuel consumed for engine restart is the second amount of fuel consumed, and the ‘

a’

is an equivalent constant that is determined by the types of fuel used in the vehicle).

7. The method of measuring reduction of greenhouse gas by idling stop according to claim 1, further comprising:

transmitting the exhaust reduction of greenhouse gas calculated in the calculating of exhaust reduction of greenhouse gas to a management center, by a greenhouse gas exhaust reduction transmitter.

8. The method of measuring reduction of greenhouse gas by idling stop according to claim 1, further comprising:

storing the calculated exhaust reduction of greenhouse gas in a storage, by the greenhouse gas exhaust reduction calculator.

9. An apparatus for measuring reduction of greenhouse gas by idling stop, comprising:

a fuel consumption amount measurer that measures a first amount of fuel consumed in an engine before the engine of a vehicle, which is in idling state, stops, and a second amount of fuel consumed for restarting the engine, which is stopped; and

a greenhouse gas exhaust reduction calculator that calculates exhaust reduction of greenhouse gas from idle stop of the vehicle to engine restart, on the basis of the first and second amount of fuel consumed and an engine stop-continued time from the outside.

10. The apparatus for measuring reduction of greenhouse gas by idling stop according to claim 9, wherein the fuel consumption amount measurer measures the first amount of fuel consumed on the basis of sensing information from a sensor that senses the flow rate of fuel that flows into the engine right before the engine is stopped.

11. The apparatus for measuring reduction of greenhouse gas by idling stop according to claim 9, wherein the fuel consumption amount measurer measures the first amount of fuel consumed on the basis of an injector-driven time from when the vehicle idles to when the engine is stopped.

12. The apparatus for measuring reduction of greenhouse gas by idling stop according to claim 9, wherein the fuel consumption amount measurer measures the second amount of fuel consumed on the basis of sensing information of a sensor that senses flow rate of fuel that flows into the engine to restart the engine.

13. The apparatus for measuring reduction of greenhouse gas by idling stop according to claim 9, wherein the fuel consumption amount measurer measures the second amount of fuel consumed on the basis of an injector-driven time until the stopped engine is restarted.

14. The apparatus for measuring reduction of greenhouse gas by idling stop according to claim 9, wherein the greenhouse gas exhaust reduction calculator calculates the exhaust reduction of greenhouse gas on the basis of the following Formula 1,

exhaust reduction of greenhouse gas by idling stop=a×

(amount of fuel consumed during idling−

amount of consumed fuel exhausted as a result of idling stop−

amount of fuel consumed for engine restart) 

 

(Formula

     1)

(In Formula 1, the amount of fuel consumed in idling is calculated by multiplying the first amount of fuel consumed by the engine stop-continued time, the amount of consumed fuel exhausted as result of idling stop is “

0 (zero)”

, the amount of fuel consumed for engine restart is the second amount of fuel consumed, and the ‘

a’

is an equivalent constant that is determined by the types of fuel used in the vehicle).

15. The apparatus for measuring reduction of greenhouse gas by idling stop according to claim 9, further comprising:

a greenhouse gas exhaust reduction transmitter that transmits the exhaust reduction of greenhouse gas calculated by the greenhouse gas exhaust reduction calculator to a management center.

16. The apparatus for measuring reduction of greenhouse gas by idling stop according to claim 9, further comprising:

a storage that stores the exhaust reduction of greenhouse gas calculated by the greenhouse gas exhaust reduction calculator.