SYSTEMS AND METHODS FOR PREDICTIVE ENGINE RE-STARTING AND PREDICTIVE NEUTRAL/IDLE OPERATION OF A VEHICLE

• US 20100191446A1
• Filed: 01/28/2009
• Published: 07/29/2010
• Est. Priority Date: 01/28/2009
• Status: Abandoned Application

• Current Assignee: GM Global Technology Operations LLC (General Motors Company)
• Original Assignee: GM Global Technology Operations Incorporated (General Motors Company)
• Inventors: MC DONALD, MIKE M., NAZIONE, JOSEPH F. JR., ALBERTSON, WILLIAM C.
• Application Number:
  US12/361,127
• Publication Number:
  US 20100191446A1
• Time in Patent Office: Days
• US Class Current: 701/113
• CPC Class Codes: F02D 2200/602 Pedal position
• CPC Class Codes: F02N 11/0837 Environmental conditions thereof, e.g. traffic, weather or road conditions
• CPC Class Codes: F02N 2200/0802 Transmission state, e.g. gear ratio or neutral state
• CPC Class Codes: F02N 2300/2006 using prediction of future conditions
• CPC Class Codes: F02N 2300/306 with external senders or receivers, e.g. receiving signals from traffic lights, other vehicles or base stations
• CPC Class Codes: Y02T 10/40 Engine management systems

Abstract

A predictive engine restart method and related systems for a host vehicle having an internal combustion engine are provided. An exemplary method begins by establishing a real-time data communication channel with a neighbor vehicle that is positioned in front of the host vehicle. The method continues by receiving vehicle status data from the neighbor vehicle using the real-time data communication channel. The vehicle status data includes transmission status data for the neighbor vehicle, accelerator pedal status data for the neighbor vehicle, and brake pedal status data for the neighbor vehicle. Then, the method re-starts the engine when the transmission status data indicates a mode other than park or neutral, and when the accelerator pedal status data indicates accelerator pedal travel greater than a threshold amount. Alternatively, the engine is re-started when the automatic transmission status data indicates a mode other than park or neutral, and when the brake pedal status data indicates a released condition.

Claims

1. A predictive engine restart method for a host vehicle having an internal combustion engine, the method comprising:

establishing a real-time data communication channel with a neighbor vehicle that is positioned in front of the host vehicle;

receiving vehicle status data from the neighbor vehicle using the real-time data communication channel, the vehicle status data comprising transmission status data for the neighbor vehicle, accelerator pedal status data for the neighbor vehicle, and brake pedal status data for the neighbor vehicle;

re-starting the engine when the transmission status data indicates a mode other than park or neutral, and when the accelerator pedal status data indicates accelerator pedal travel greater than a threshold amount; and

re-starting the engine when the automatic transmission status data indicates a mode other than park or neutral, and when the brake pedal status data indicates a released condition.

2. The method of claim 1, further comprising the step of designating the neighbor vehicle from a plurality of neighboring vehicles proximate the host vehicle.

3. The method of claim 2, wherein the designating step comprises the step of analyzing real-time location and heading data of the host vehicle and the neighboring vehicles.

4. The method of claim 3, further comprising receiving the location and heading data of the neighboring vehicles using a dedicated short range communication protocol.

5. The method of claim 1, wherein the establishing step establishes the real-time data communication channel using a dedicated short range communication protocol.

6. The method of claim 1, wherein the establishing step is performed only when the host vehicle is stopped.

7. The method of claim 1, wherein the establishing step is performed only when engine speed of the host vehicle is less than a threshold speed.

8. A predictive engine restart system for a host vehicle having an internal combustion engine, the system comprising:

means for receiving real-time front vehicle status data from a neighbor vehicle that is located in front of the host vehicle, the real-time front vehicle status data comprising transmission status data for the neighbor vehicle, accelerator pedal status data for the neighbor vehicle, and brake pedal status data for the neighbor vehicle;

means for obtaining real-time host vehicle status data for the host vehicle, the real-time host vehicle status data comprising engine on/off status data for the host vehicle, and engine speed data for the host vehicle; and

means for re-starting the engine when either;

the engine on/off status data indicates an engine off status, the engine speed data indicates engine speed less than a threshold speed, the transmission status data indicates a mode other than neutral, and the accelerator pedal status data indicates accelerator pedal travel greater than a threshold amount;

or

the engine on/off status data indicates an engine off status, the engine speed data indicates engine speed less than a threshold speed, the transmission status data indicates a mode other than neutral, and the brake pedal status data indicates a released condition.

9. The system of claim 8, further comprising means for designating the neighbor vehicle from a plurality of neighboring vehicles proximate the host vehicle.

10. The system of claim 9, wherein the means for designating analyzes real-time location and heading data of the host vehicle and the neighboring vehicles.

11. The system of claim 10, further comprising a dedicated short range communication receiver that receives the location and heading data of the neighboring vehicles using a dedicated short range communication protocol.

12. The system of claim 10, wherein the means for designating comprises a global positioning system (GPS) receiver that determines the location data of the host vehicle.

13. The system of claim 8, wherein the means for receiving comprises a dedicated short range communication receiver that receives the real-time front vehicle status data using a dedicated short range communication protocol.

14. The system of claim 8, wherein the means for re-starting comprises an electronic engine control module of the host vehicle.

15. The system of claim 8, wherein the means for receiving, the means for obtaining, and the means for re-starting are onboard the host vehicle.

16. A predictive neutral/idle operating method for a host vehicle having an internal combustion engine and an automatic transmission, the method comprising:

electronically switching the automatic transmission from a drive mode to a neutral idle mode when the host vehicle is stopped;

receiving location and heading data for one or more neighboring vehicles proximate the host vehicle, using a wireless vehicle-to-vehicle data communication scheme;

receiving host vehicle location and heading data;

analyzing the location and heading data for the one or more neighboring vehicles, and the host vehicle location and heading data, to designate a neighbor vehicle from the one or more neighboring vehicles, the neighbor vehicle being positioned immediately in front of the host vehicle;

establishing a real-time wireless data communication channel between the host vehicle and the neighbor vehicle;

receiving, via the real-time wireless data communication channel, front vehicle status data from the neighbor vehicle, the front vehicle status data comprising automatic transmission status data for the neighbor vehicle, accelerator pedal status data for the neighbor vehicle, and brake pedal status data for the neighbor vehicle; and

electronically switching the automatic transmission from the neutral idle mode to the drive mode when either;

the automatic transmission status data indicates a mode other than park or neutral, and the accelerator pedal status data indicates accelerator pedal travel greater than a threshold amount;

or

the automatic transmission status data indicates a mode other than park or neutral, and the brake pedal status data indicates a released condition.

17. The method of claim 16, wherein the location and heading data for the one or more neighboring vehicles is received using a dedicated short range communication protocol.

18. The method of claim 16, wherein the establishing step establishes the real-time wireless data communication channel using a dedicated short range communication protocol.

19. The method of claim 16, wherein the location and heading data for the neighboring vehicles and the host vehicle location and heading data for the host vehicle comprises global positioning system (GPS) data.