System for recommending maintenance for fuel economy improvement

• US 20100073158A1
• Filed: 09/22/2008
• Published: 03/25/2010
• Est. Priority Date: 09/22/2008
• Status: Active Grant

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Denso International America Incorporated (DENSO Corporation)
• Inventors: Uesaka, Hiroto, Wiegand, Michael, Tanaka, Tomoaki
• Granted Patent: US 8,009,028 B2
• Time in Patent Office: Days
• US Class Current: 340/450.200
• CPC Class Codes: B60Q 9/00 Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00 , e.g. haptic signalling
• CPC Class Codes: B60R 16/0236 for economical driving
• CPC Class Codes: Y02T 10/84 Data processing systems or methods, management, administration

Abstract

A method of optimizing fuel economy and carbon dioxide emissions of a vehicle may entail utilizing an interior vehicle display to alert a driver as to the state of various vehicle components and parameters and their effect on fuel economy and carbon dioxide emissions. The components and parameters may be monitored by or direct information into a vehicle efficiency ECU which communicates with the display. The method may entail reading and displaying a real-time tire pressure into the efficiency ECU and displaying the corresponding fuel economy. a manufacturer'"'"'s recommended tire pressure and corresponding fuel economy could also be displayed. The method may also entail reading a variety of real-time weather conditions into the efficiency ECU that correspond to a plurality of different road routes to a driver-selected destination. The fuel economy of each route may be displayed for driver selection to optimize fuel economy and carbon dioxide emissions.

Claims

1. A method of optimizing fuel economy of a vehicle by utilizing an efficiency ECU, the method comprising:

reading a real-time tire pressure into the efficiency ECU;

reading real-time electrical loads into the efficiency ECU;

displaying the real-time tire pressure and real-time electrical loads on a driver-readable display within the vehicle; and

displaying a fuel economy and carbon dioxide emissions of the vehicle upon driver selection of tire pressure and electrical loads.

2. The method of claim 1, further comprising:

reading a real-time oxygen level from an oxygen sensor into the efficiency ECU; and

displaying a fuel economy of the vehicle upon driver selection of a new oxygen sensor, selected from the display.

3. The method of claim 1, further comprising:

reading weather information into the efficiency ECU, wherein the weather information pertains to more than one road route; and

displaying a fuel economy of the vehicle upon driver selection of a road route.

4. The method of claim 1, further comprising:

reading a plurality of traffic conditions into the efficiency ECU, wherein each traffic condition corresponds to a specific road route; and

displaying a fuel economy of the vehicle upon driver selection of a road route.

5. The method of claim 1, further comprising:

reading an alternator output into the efficiency ECU; and

displaying a fuel economy of the vehicle upon driver selection of a road route.

6. The method of claim 1, further comprising:

reading an air conditioning evaporator temperature into the efficiency ECU; and

displaying a fuel economy of the vehicle for each of a plurality of lesser air conditioning compressor displacements on the display, each displacement corresponding to the same evaporator temperature.

7. The method of claim 1, further comprising:

reading an air conditioning evaporator temperature into the efficiency ECU; and

displaying a fuel economy of the vehicle for each of a plurality of lesser air conditioning compressor speeds on the display, each speed corresponding to the same evaporator temperature.

8. The method of claim 1, further comprising:

reading a real-time mass air flow rate into the efficiency ECU; and

displaying a fuel economy of the vehicle for the real-time mass air flow rate and for a correct mass air flow rate.

9. The method of claim 1, further comprising:

reading a real-time transmission gear position from a transmission ECU and into the efficiency ECU; and

displaying a fuel economy of the vehicle based upon the real-time transmission gear position and for different transmission gear positions.

10. The method of claim 1, further comprising:

reading real-time positions of a plurality of load balancers into the efficiency ECU; and

displaying a fuel economy of the vehicle based upon the real-time positions of the plurality of load balancers and for a vehicle no load position.

11. The method of claim 1, further comprising:

reading real-time information from a brake ECU into the efficiency ECU;

directing rotational energy from vehicle wheels to electrical generators;

generating electrical energy with the electrical generators;

supplying electricity to the electrical loads of the vehicle;

disengaging a vehicle alternator; and

displaying, on the display, a fuel economy before generating electrical energy with the electrical generators and a fuel economy after generating electrical energy with the electrical generators.

12. The method of claim 1, further comprising:

reading real-time engine ECU parameters into the efficiency ECU; and

displaying a fuel economy of the vehicle based upon the real-time engine ECU parameters and displaying a fuel economy of the vehicle based upon proposed changes in the engine ECU parameters, wherein the engine ECU parameters consist of a quantity of fuel injected into each combustion cylinder, an ignition timing for each cylinder, and a level of boost maintained by a turbocharger.

13. A method of optimizing fuel economy of a vehicle by utilizing an efficiency ECU and a display within the vehicle, the method comprising:

reading a real-time tire pressure into the efficiency ECU;

reading a plurality of real-time weather conditions into the efficiency ECU corresponding to a plurality of user-selected road routes to a destination;

displaying the real-time tire pressure and corresponding fuel economy on the display;

displaying the plurality of real-time weather conditions for the plurality of road routes to the destination and corresponding fuel economies on the display;

displaying a fuel economy of the vehicle on the display using a manufacturer recommended tire pressure; and

providing user-selectable options on the display for a driver to select one of the plurality of road routes and its corresponding fuel economy, and to select the real-time tire pressure and its corresponding fuel economy and the fuel economy of the vehicle using the manufacturer recommended tire pressure to display the lowest possible combined fuel economy.

14. The method of claim 13, further comprising:

reading a plurality of real-time traffic conditions into the efficiency ECU corresponding to a plurality of road routes to the destination; and

displaying a fuel economy of the vehicle for each of the plurality of road routes.

15. The method of claim 13, further comprising:

reading a real-time electrical load into the efficiency ECU; and

displaying the electrical load on the display and an amount of fuel use attributed to the electrical load.

16. The method of claim 13, further comprising:

reading a real-time transmission gear position from a transmission ECU and into the efficiency ECU; and

displaying a fuel economy of the vehicle based upon the real-time transmission gear position and for different transmission gear positions at a current vehicle speed.

17. The method of claim 13, further comprising:

reading real-time positions of a plurality of load balancers into the efficiency ECU;

displaying a fuel economy of the vehicle based upon the real-time positions of the plurality of load balancers and for no load positions of the balancers of the vehicle; and

providing a touch screen option to adjust the load balancers to their no load positions.

18. The method of claim 13, further comprising:

reading real-time information from a brake ECU into the efficiency ECU;

directing rotational energy from vehicle wheels to electrical generators;

generating electrical energy with the electrical generators;

supplying electricity to the electrical loads of the vehicle;

disengaging a vehicle alternator; and

displaying, on the display, a fuel economy before generating electrical energy with the electrical generators and a fuel economy after generating electrical energy with the electrical generators.

19. The method of claim 13, further comprising:

reading real-time engine ECU parameters into the efficiency ECU; and

displaying a fuel economy of the vehicle based upon the real-time engine ECU parameters and displaying a fuel economy of the vehicle based upon proposed changes in the engine ECU parameters, wherein the engine ECU parameters consist of a quantity of fuel injected into each combustion cylinder, an ignition timing for each cylinder, and a level of boost maintained by a turbocharger.

20. The method of claim 13, further comprising:

reading an air conditioning evaporator temperature into the efficiency ECU; and

displaying a fuel economy of the vehicle for each of a plurality of lesser air conditioning compressor displacements on the display, each displacement corresponding to the same evaporator temperature.

21. A method of optimizing fuel economy of a vehicle equipped with a navigation system, the method comprising:

providing a plurality of energy consuming devices in the vehicle;

monitoring energy consumption of each of the energy consuming devices in the vehicle;

displaying a quantity of energy consumption of each of the energy consuming devices on a display in the vehicle; and

providing, on the display, an option to reduce the quantity of energy consumption of one or more of the energy consuming devices in the vehicle.

22. The method of claim 21, further comprising:

selecting a destination using the navigation system;

displaying a plurality of routes to the destination on the display in the vehicle; and

displaying a quantity of fuel consumption for each of the routes to the destination.