Method and system for predictive vehicle systems performance selection for enhanced maneuverability

• US 9,230,443 B2
• Filed: 03/19/2013
• Issued: 01/05/2016
• Est. Priority Date: 03/19/2013
• Status: Active Grant

• Current Assignee: Ford Global Technologies, LLC (Ford Motor Company)
• Original Assignee: Ford Global Technologies, LLC (Ford Motor Company)
• Inventors: Prakah-Asante, Kwaku O., Lu, Jianbo, Tseng, Finn, Filev, Dimitar Petrov, Szwabowski, Steven Joseph
• Primary Examiner(s): Kiswanto, Nicholas
• Application Number:
  US13/847,070
• Publication Number:
  US 20140288775A1
• Time in Patent Office: 1,022 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: G01S 13/931 of land vehicles
• CPC Class Codes: G08G 1/166 for active traffic, e.g. moving vehicles, pedestrians, bikes

Abstract

A predictive enhanced maneuverability system providing enhanced timely delivery of vehicle performance selection of chassis, and steering modes for potential predicted safety collisions is disclosed. The primary inputs of the disclosed invention include a determination of the proximity to a preceding vehicle, the density of the surrounding traffic, a forward collision warning alert, and the predictive enhanced maneuverability decision sub-system for vehicle mode selection. The system of the disclosed invention provides a customized vehicle dynamics chassis and steering dynamic mode output, based on a predicted decision about vehicle potential for collision, for improved driver maneuverability and safety. In addition, the disclosed invention provides an improved system and method for incorporating the time dependent headway, forward collision warning alert, and the traffic density for chassis collision-mode embedded decision-making. The predictive enhanced maneuverability decision-module allows vehicle dynamics mode selection to be tailored based on proximity to a potential collision.

Claims

1. A host vehicle having predictive enhanced maneuverability comprising:

a suspension having a normal mode and a sport mode;

a steering system having different operating modes;

a suspension and steering mode selection module connected with said suspension and said steering system;

a time dependent headway (TDH) input operatively associated with said module, said TDH being in relation to a preceding vehicle;

a traffic density (TRD) input operatively associated with said module; and

a forward collision warning alert (FCWA) input operatively associated with said module, said module having a TDH output algorithm in which, when TDH is closer to 0.0, the host vehicle is identified as being nearer to the preceding vehicle and normal mode is engaged, and, when TDH is closer to 1.0, the host vehicle is farther from the preceding vehicle and sport mode is engaged.

2. The vehicle having predictive enhanced maneuverability of claim 1 wherein said inputs provide information to said module which identifies a potential collision scenario and which determines which of said suspension and steering system operating modes are appropriate for the identified potential collision scenario.

3. The vehicle having predictive enhanced maneuverability of claim 1 wherein said different operating modes of said steering system are selected from a group consisting of at least sport and normal.

4. The vehicle having predictive enhanced maneuverability of claim 1 in which the vehicle has a front portion and in which said front portion includes a short-range sensor and a long-range sensor connected to said module.

5. The vehicle having predictive enhanced maneuverability of claim 4 in which the forward collision warning alert input is generated by said short-range sensor and said long-range sensor.

6. The vehicle having predictive enhanced maneuverability of claim 4 in which the vehicle has a first side and a second side and in which said first side includes a first side sensor and said second side includes a second side sensor.

7. A vehicle having predictive enhanced maneuverability comprising:

a suspension having original, normal and sport modes;

a steering system having original, normal and sport modes;

a suspension and steering mode selection module connected with said suspension and said steering system, said module incorporating a rule-based algorithm;

a plurality of sensors for distinguishing between low and high time dependent headway (TDH) and for distinguishing between low and high vehicle traffic density (TDR), said sensors being operatively associated with said module, said sensors providing input to said module for selecting among said modes appropriate to respond to a potential collision scenario, whereby when both TDH and TDR are identified as low, said sport mode is selected by said module for both said suspension and said steering system and when said TDH is low and said TDR is high, said sport mode is selected by said module for said suspension and said normal mode is selected for said steering system.

8. The vehicle having predictive enhanced maneuverability of claim 7 wherein said inputs are selected from a group consisting of at least a time dependent headway input, a traffic density input, and a fOrward collision warning alert input.

9. The vehicle having predictive enhanced maneuverability of claim 8 in which the vehicle has a front portion and in which said front portion includes a short-range sensor and a long-range sensor connected to said module.

10. The vehicle having predictive enhanced maneuverability of claim 9 in which the forward collision warning alert input is generated by, said short-range sensor and said long-range sensor.

11. The vehicle having predictive enhanced maneuverability of claim 10 in which the vehicle has a first side and a second side and in which said first side includes a first side sensor and said second side includes a second side sensor.

12. The vehicle having predictive enhanced maneuverability of claim 7 wherein said different operating modes of said suspension are selected from a group consisting of at least sport and normal.

13. The vehicle having predictive enhanced maneuverability of claim 7 wherein said different operating modes of said steering system are selected from a group consisting of at least sport and normal.

14. A method for providing predictive enhanced maneuverability in a host vehicle having a suspension and steering system with different operating modes, the method comprising the steps of:

forming a system including a suspension having sport and normal modes, a steering system having sport and normal modes, a suspension and steering mode decision selection module and a plurality of sensors for determining time dependent headway (TDH), local vehicle traffic density (TRD) and position, said sensors being operatively associated with said decision module and providing input thereto; and

assigning a value of TDH of between 0.0 and 1.0, whereby if TDH is closer to 0.0, the host vehicle is identified as being nearer to the preceding vehicle and normal mode is engaged, and, when TDH is closer to 1.0, the host vehicle is farther from the preceding vehicle and sport mode is engaged.

15. The method for providing predictive enhanced maneuverability in a vehicle of claim 14 wherein said inputs are selected from a group consisting of at least a time dependent headway input, a traffic density input, and a forward collision warning alert input, and operating mode selection is made in response to a combination of said inputs.

16. The method for providing predictive enhanced maneuverability in a vehicle of claim 15 in which the vehicle has a front portion and in which said front portion includes a short-range sensor and a long-range sensor connected to said module.

17. The method for providing predictive enhanced maneuverability in a vehicle of claim 16 in which the forward collision warning alert input is generated by said short-range sensor and said long-range sensor.

18. The method for providing predictive enhanced maneuverability in a vehicle of claim 17 in which the vehicle has a first side and a second side and in which said first side includes a first side sensor and said second side includes a second side sensor.

19. The method for providing predictive enhanced maneuverability in a vehicle of claim 14 wherein said different operating modes of said suspension are selected from a group consisting of at least sport and normal and said different operating modes of said steering system are selected from said group consisting of at least sport and normal.