Method and system for vehicle design using occupant reach zones

• US 6,113,644 A
• Filed: 12/04/1997
• Issued: 09/05/2000
• Est. Priority Date: 12/04/1997
• Status: Expired due to Term

• Current Assignee: Ford Motor Company
• Original Assignee: Ford Global Technologies, LLC (Ford Motor Company)
• Inventors: Moon, Joseph J., Henault, Mark Russell, Weber, William Francis, Walraven, Michael Joseph, Bach, Daniel Cornelius, Karam, Frederick Abraham, Tang, Scott Ming-Hua, Sevrence, Sean James
• Primary Examiner(s): Teska, Kevin J.
• Assistant Examiner(s): FREJD, RUSSELL WARREN
• Application Number:
  US08/984,806
• Time in Patent Office: 1,006 Days
• Field of Search: 395/500.01, 395/500.37, 395/500.29, 345/333, 345/348, 345/353, 345/356, 345/419, 345/473, 345/339, 345/355, 264/148.01, 264/149, 264/150, 264/151, 264/152, 264/468.01, 264/468.02, 264/468.03, 264/468.04, 264/468.09, 264/468.1, 264/468.12, 180/271, 180/286, 180/287, 280/1, 434/29, 434/257, 434/267, 434/365, 434/370, 434/373, 382/104
• US Class Current: 703/8
• CPC Class Codes: G06F 30/15 Vehicle, aircraft or watercraft design
• CPC Class Codes: G06T 19/00 Manipulating 3D models or images for computer graphics
• CPC Class Codes: G06T 2219/008 Cut plane or projection plane definition

Abstract

A computer based system and method orients an occupant representation, in electronic form, with respect to a three-dimensional electronic representation of a portion of the vehicle. At least one vehicle system is represented, also in electronic form, with respect to a common reference point, at least one human factors reach study is electronically performed to determine occupant reach with respect to the at least one vehicle system, and an outcome of that study is reported to a vehicle designer. The designer then has an option to vary, or alter, the vehicle, the occupant orientation, the location of the vehicle system, or any combination thereof, so that the design meets the reach criteria of the study. However, the designer may opt to retain the design despite non-compliance with the reach criteria. If a parameter change is made, the system and method automatically rebuild every other effected dimension, and vehicle systems to satisfy the regenerated design are automatically selected from an electronic parts library so that packaging alternatives can be quickly studied. A geometric representation of occupant reach relative to a vehicle system may be displayed to allow a designer to visually assess compliance with a particular reach criteria. The occupant representation, vehicle, vehicle system, and geometric representation of the occupant reach may be rendered and animated in three-dimensions permitting views from various perspectives. The method and system can quickly provide accurate human factors reach studies for a vehicle design while allowing system packaging flexibility.

Claims

1. A method for designing an automotive vehicle in a computer system in which a portion of a vehicle, an occupant representation, and at least one occupant interactive vehicle surface are electronically represented, the method comprising the steps of:

(a) orienting the occupant representation within a passenger compartment in the vehicle;

(b) positioning the at least one occupant interactive vehicle surface within the passenger compartment;

(c) generating at least one occupant reach surface based upon a predetermined occupant reach criteria; and

(d) displaying said at least one surface so as to divide the passenger compartment into at least one occupant reach zone.

2. A method for designing an automotive vehicle according to claim 1 wherein the occupant representation is oriented using a predefined set of occupant orientation parameters.

3. A method for designing an automotive vehicle according to claim 2 wherein the predefined set of occupant orientation parameters include at least one of the following:

an occupant hip point;

a distance between an accelerator heel point and the occupant hip point; and

an occupant back angle.

4. A method for designing an automotive vehicle according to claim 1 wherein the at least one occupant interactive vehicle surface is defined in an electronically stored parts library.

5. A method for designing an automotive vehicle according to claim 1 wherein the predetermined occupant reach criteria comprise a set of human reach factors.

6. A method for designing an automotive vehicle according to claim 5 wherein the set of human reach factors comprise at least one of a maximum push button criteria, a maximum three-finger grasp criteria, a maximum full grasp criteria, a steering wheel finger reach criteria, and minimum reach criteria.

7. A method for designing an automotive vehicle according to claim 1 wherein the at least one occupant reach surface comprises at least one of a maximum push button surface, a maximum three-finger grasp surface, a maximum full grasp surface, a minimum reach surface, and a steering wheel finger surface.

8. A method for designing an automotive vehicle according to claim 1 wherein the at least one occupant reach zone comprises at least one of a maximum push button zone, a maximum three-finger grasp zone, a maximum full grasp zone, a minimum reach zone, and a steering wheel finger zone.

9. A method for designing an automotive vehicle according to claim 1 and further including the step of repositioning the at least one occupant interactive vehicle surface within the passenger compartment after step (d) based upon a predefined set of rules.

10. A method according to claim 9 wherein the predefined rules comprise a set of locational relationships between each of the at least one occupant interactive vehicle surfaces and adjacent occupant interactive vehicle surfaces and the portion of the vehicle electronically represented.

11. A computer aided method for designing an interior of an automotive vehicle having a passenger compartment in which an occupant representation and at least one vehicle component are electronically represented, the method comprising the steps of:

(a) providing a three-dimensional electronic reference frame for an interior portion of the vehicle;

(b) selecting a location for the at least one vehicle component within the passenger compartment in the reference frame;

(c) orienting the occupant representation within the passenger compartment;

(e) generating at least one occupant reach surface based upon a predetermined occupant reach criteria between the occupant representation and the at least one vehicle component; and

(f) displaying the at least one reach surface so as to divide the passenger compartment into at least one occupant reach zone.

12. A method for designing an automotive vehicle according to claim 11 wherein the occupant representation is oriented using a predefined set of occupant orientation parameters comprising at least one of the following:

an occupant hip point;

a distance between an accelerator heel point and the occupant hip point; and

an occupant back angle.

13. A method for designing an automotive vehicle according to claim 11 wherein the at least one vehicle component is defined in an electronically stored parts library.

14. A method for designing an automotive vehicle according to claim 11 wherein the predetermined occupant reach criteria comprise a set of human reach factors comprising at least one of a maximum push button criteria, a maximum three-finger grasp criteria, a maximum full grasp criteria, a minimum reach criteria, and a steering wheel finger reach criteria.

15. A method for designing an automotive vehicle according to claim 11 wherein the at least one occupant reach surface comprises at least one of a maximum push button surface, a maximum three-finger grasp surface, a maximum full grasp surface, a minimum reach surface, and a steering wheel finger surface.

16. A method for designing an automotive vehicle according to claim 11 wherein the at least one occupant reach zone comprises at least one of a maximum push button zone, a maximum three-finger grasp zone, a maximum full grasp zone, a minimum reach zone, and a steering wheel finger zone.

17. A method for designing an automotive vehicle according to claim 11 and further including the step of repositioning the at least one occupant interactive vehicle surface within the passenger compartment after step (d) based upon a set of locational relationships between each of the at least one vehicle components and adjacent vehicle components and the interior portion of the vehicle.

18. A computer aided method for designing an interior of an automotive vehicle in which an occupant representation and at least one occupant interactive system are electronically represented, the method comprising the steps of:

(a) orienting the occupant representation within the interior of the vehicle;

(b) positioning at least one occupant interactive system in a system position within the interior;

(c) generating at least one occupant-system geometric representation based upon a spatial relationship between the occupant representation and the at least one occupant interactive system; and

(d) varying the system position of the at least one occupant interactive system so as to meet a predetermined occupant-system interaction criteria.

19. A method for designing an automotive vehicle according to claim 18 wherein the occupant representation is oriented using a predefined set of occupant orientation parameters comprising at least one of the following:

an occupant hip point;

a distance between an accelerator heel point and the occupant hip point; and

an occupant back angle.

20. A method for designing an automotive vehicle according to claim 18 wherein the at least one occupant interactive system is defined in an electronically stored parts library.

21. A method for designing an automotive vehicle according to claim 18 wherein the at least one occupant-system geometric representation comprises at least one of a maximum push button surface, a maximum three-finger grasp surface, a maximum full grasp surface, a minimum reach surface, and a steering wheel finger surface.

22. A method for designing an automotive vehicle according to claim 18 wherein the predetermined occupant-system interaction criteria comprise a set of human reach factors including at least one of a maximum push button criteria, a maximum three-finger grasp criteria, a maximum full grasp criteria, a minimum reach criteria, and a steering wheel finger reach criteria.

26. A method for designing an automotive vehicle according to claim 18 wherein the predetermined criteria comprise a set of human reach factors including at least one of a maximum push button criteria, a maximum three-finger grasp criteria, a maximum full grasp criteria, a minimum reach criteria, and a steering wheel finger reach criteria.

23. A computer aided method for designing a portion of an interior of an automotive vehicle in which an occupant position and at least one vehicle device are electronically represented, the method comprising the steps of:

(a) selecting a value for the at least one occupant position parameter;

(b) determining a spatial relationship between the at least one occupant position parameter and the at least one vehicle device;

(c) comparing the spatial relationship to a predetermined criteria; and

(d) determining a locational change for the at least one vehicle device so that the spatial relationship meets the predetermined criteria.

24. A method for designing an automotive vehicle according to claim 23 wherein the occupant parameters at least one of the following:

an occupant hip point;

a distance between an accelerator heel point and the occupant hip point; and

an occupant back angle.

25. A method for designing an automotive vehicle according to claim 23 wherein the at least one vehicle device is defined in an electronically stored parts library.

27. A method for designing an automotive vehicle according to claim 23 and further including the step of repositioning the at least one vehicle device within the interior based upon the locational change.

28. A method for designing an automotive vehicle according to claim 27 wherein the locational change is partially determined by a set of locational relationships between each of the at least one vehicle device, adjacent vehicle devices, and the interior portion of the vehicle.

29. A computer aided method for designing an instrument panel of an automotive vehicle, the method comprising the steps of:

(a) providing a three-dimensional vehicle reference frame for a portion of the vehicle;

(b) packaging at least one integrated system within the instrument panel in the vehicle reference frame;

(c) positioning at least one occupant interactive vehicle surface within a vehicle passenger compartment in the vehicle reference frame;

(d) orienting an occupant representation within the passenger compartment;

(e) generating at least one human factors reach surface based upon a predetermined human factors reach criteria between the occupant representation, the at least one occupant interactive vehicle surface, and the at least one integrated system; and

(f) displaying said at least one surface so as to divide the passenger compartment into a plurality of occupant zones.

30. A method for designing an automotive vehicle according to claim 29 wherein the at least one integrated system is packaged in step (b) by:

selecting a vehicle part having a plurality of part parameters from a vehicle parts library;

generating an initial part geometry based upon the part parameters and a generic part architecture; and

generating a modified part geometry by changing at least one part parameter of the vehicle part to modify the initial part geometry.

31. A computer aided method for designing an interior portion of an automotive vehicle, the method comprising the steps of:

(a) selecting a set of generic parameters for describing an occupant position in the interior portion of the vehicle and occupant interaction with respect to at least one device within the vehicle;

(b) selecting a value for each of the set of generic parameters;

(c) generating a spatial relationship between the occupant position and the at least one occupant device; and

(d) determining a parameter change for at least one of the set of generic parameters so that the spatial relationship meets a predetermined criteria.

32. A method for designing an automotive vehicle according to claim 31 and further including the steps of generating and displaying at least one occupant reach surface based upon the spatial relationship so as to divide the passenger compartment into a plurality of occupant reach zones.

33. A computer aided method for designing a portion of an automotive vehicle, the method comprising the steps of:

(a) storing in the memory of a computer system a first set of data representing an occupant position within the vehicle;

(b) storing in the memory a second set of data representing a position for at least one occupant interactive vehicle system within the passenger compartment;

(c) generating a third set of data representing a reach distance between the first set of data and the second set of data;

(d) comparing the third set of data to a fourth set of data representing a predetermined occupant reach criteria; and

(e) varying the second set of data until the third set of data meets the predetermined occupant reach criteria.

34. A method for designing an automotive vehicle according to claim 33 wherein the first set of data includes data representing at least one of the following:

occupant hip point data;

data representing a distance between an accelerator heel point and the occupant hip point; and

occupant back angle data.

35. A method for designing an automotive vehicle according to claim 33 wherein the second set of data includes data from an electronically stored parts library.

36. A method for designing an automotive vehicle according to claim 33 wherein the fourth set of data comprises human reach factors data.

37. A method for designing an automotive vehicle according to claim 36 wherein the human reach factors data comprises data from at least one of a set of maximum push button data, a set of maximum three-finger grasp data, a set of maximum full grasp data, a set of minimum reach data, and a set of steering wheel finger reach data.

38. A method for designing an automotive vehicle according to claim 33 wherein the second set of data is varied in step (e) based upon a predefined set of rules.

39. A method according to claim 38 wherein the predefined rules comprise a set of locational relationships between the first and second sets of data.

40. A method for designing an automotive vehicle according to claim 33 including the step of generating a fifth set of data representing at least one occupant reach surface based upon the third set of data representing the reach distance.

41. A method for designing an automotive vehicle according to claim 40 wherein the fifth set of data includes at least one of a maximum push button surface, a maximum three-finger grasp surface, a maximum full grasp surface, a minimum reach surface, and a steering wheel finger surface.

42. A method for designing an automotive vehicle according to claim 40 including the step of displaying the fifth set of data relative to the first and second sets of data.

43. A method for designing an automotive vehicle according to claim 40 wherein the fifth set of data is displayed so as to divide the passenger compartment into at least one of a maximum push button zone, a maximum three-finger grasp zone, a maximum full grasp zone, a minimum reach zone, and a steering wheel finger zone.

44. A computer aided method for designing a portion of an automotive vehicle, the method comprising the steps of:

(a) storing in the memory of a computer system a first set of data representing an occupant position within the vehicle;

(b) storing in the memory a second set of data representing a position for at least one occupant interactive vehicle system within the passenger compartment;

(c) generating a third set of data representing a spatial relationship between the first set of data and the second set of data;

(d) comparing the third set of data to a fourth set of data stored in the memory representing a predetermined occupant-vehicle interaction criteria; and

(e) varying the second set of data until the third set of data meets the predetermined occupant-vehicle interaction criteria.

45. A system for designing a portion of an automotive vehicle, the system comprising:

(a) first code means for representing an occupant position within a passenger compartment in the vehicle;

(b) second code means for representing a position for at least one occupant interactive vehicle system within the passenger compartment;

(c) third code means for generating a spatial relationship between the occupant position and the at least one occupant interactive vehicle system;

(d) fourth code means for comparing the spatial relationship to a predetermined occupant-vehicle interaction criteria; and

(e) fifth code means for varying the position of the at least one occupant interactive system to meet the predetermined occupant-vehicle interaction criteria.

46. A system according to claim 45 wherein the first code means includes at least one of the following:

code means for representing an occupant hip point;

code means for representing a distance between an accelerator heel point and the occupant hip point; and

code means for representing an occupant back angle.

47. A system according to claim 45 wherein the second code means includes code means for representing a parts library.

48. A system according to claim 45 wherein the predetermined occupant-vehicle interaction criteria comprises a set of human factors reach data.

49. A system according to claim 48 wherein the human factors reach data comprises data from at least one of a set of maximum push button data, a set of maximum three-finger grasp data, a set of maximum full grasp data, a set of minimum reach data, and a set of steering wheel finger reach data.

50. A system according to claim 45 wherein the fifth code means includes a set of locational rules between the first and second code means.

51. A system according to claim 45 including sixth code means for displaying the spatial relationship between the occupant position and the at least one occupant interactive vehicle system.

52. A system according to claim 51 wherein the sixth code means causes the spatial relationship between the occupant position and the at least one occupant interactive vehicle system to be displayed so as to divide the passenger compartment into at least one of a maximum push button zone, a maximum three-finger grasp zone, a maximum full grasp zone, a minimum reach zone, and a steering wheel finger zone.

53. A computer aided vehicle design system for designing a portion of an automotive vehicle, the system comprising:

(a) parameter selection code means for selecting a value for at least one occupant position parameter;

(b) spatial code means for determining a reach distance between the at least one occupant position parameter and at least one vehicle device;

(c) comparison code means for comparing the reach distance to a predetermined reach criteria; and

(d) adjustment code means for determining a locational change for the at least one vehicle device so that the reach distance meets the predetermined reach criteria.

54. A system according to claim 53 wherein the adjustment code means includes code means for varying a device location of the at least one vehicle device with respect to the at least one occupant position parameter based upon a set of predefined rules.

55. A system according to claim 54 wherein the predefined rules are defined by locational code means comprising a set of locational relationships between each of the at least one vehicle devices.

56. A system according to claim 55 wherein the locational code means comprises a standard parts library electronically stored in a computer memory.

57. A system according to claim 53 wherein the predetermined reach criteria are embodied in a human factors reach code means.

58. A system according to claim 57 wherein the human factors reach code means includes at least one of a maximum push button code means, a maximum three-finger grasp code means, a maximum full grasp code means, a minimum reach code means, and a steering wheel finger code means.

59. A system according to claim 53 including display means for displaying a geometric representation of the reach distance between the occupant representation and the at least one vehicle device.

60. A system according to claim 59 wherein the geometric representation is a surface which divides the passenger compartment into at least two zones.

61. A vehicle design system on a computer in which an occupant representation and at least one vehicle system have a common reference point, the system comprising:

occupant representation means for orienting an occupant representation with respect to the common reference point in the computer;

vehicle system representation means for representing in the computer at least one vehicle system with reference to the common reference point;

reach study means for performing at least one human factors reach study between the occupant representation and the at least one vehicle system; and

outcome communication means for reporting an outcome of the at least one human factors reach study.

62. A vehicle design system on a computer having processor and a memory in which an occupant and at least one vehicle system are electronically represented with respect to a common reference point in a three-dimensional representation of a portion of a vehicle, the system comprising:

occupant representation code means for orienting an occupant representation with respect to the common reference point in the computer;

vehicle system representation code means for representing the at least one vehicle system with reference to the common reference point;

reach study code means for causing the processor to perform at least one human factors reach study between the occupant representation and the at least one vehicle system; and

outcome communication code means for reporting an outcome of the at least one human factors reach study.

63. An occupant accessible instrument panel for an automotive vehicle made by:

(a) orienting an occupant representation within a passenger compartment of the vehicle;

(b) determining a spatial relationship between the occupant representation and each of at least one of a group of systems having a system location on the instrument panel vehicle;

(c) comparing the spatial relationship of each of the at least one of the group of systems to a predetermined criteria;

(d) varying the system location of each of the at least one of the group of systems with respect to the occupant representation based upon a set of predefined rules; and

(e) performing steps (b) through (d) until the spatial relationship meets the predetermined criteria so that the instrument has systems which are accessible by an occupant in the vehicle.

64. A method for vehicle design on a computer having processor and a memory in which an occupant and at least one vehicle system are electronically represented with respect to a common reference point in a three-dimensional representation of a portion of a vehicle, the method comprising the steps of:

orienting an occupant representation with respect to the common reference point in the computer;

representing the at least one vehicle system with reference to the common reference point;

determining at least one occupant reach interaction between the occupant representation and the at least one vehicle system; and

reporting the at least one occupant reach interaction.

65. A method according to claim 64 wherein the occupant reach interaction is determined based on a set of human factors reach criteria.

66. A method for designing an automotive vehicle according to claim 65 wherein the set of human factors reach criteria comprise at least one of a maximum push button criteria, a maximum three-finger grasp criteria, a maximum full grasp criteria, a minimum reach criteria, and a steering wheel finger reach criteria.

67. A method according to claim 64 wherein the occupant reach interaction is reported by displaying a geometric reach representation of the occupant interaction between the occupant representation and the at least one vehicle device.

68. A method according to claim 67 wherein the geometric reach representation is a surface which divides the passenger compartment into at least two reach zones.

69. A method according to claim 64 including the step of rendering a three-dimensional surface for the occupant reach representation, each of the at least one vehicle devices, and the portion of the vehicle.

70. A method according to claim 64 including the step of animating movement of the occupant reach representation, at least one vehicle device, and the portion of the vehicle.

71. A method according to claim 65 including the step of determining a locational change for the at least one vehicle device, the occupant representation, or both, so that the occupant reach interaction meets the predetermined reach criteria.

72. A method according to claim 71 including the step of varying a device location of the at least one vehicle device with respect to the common reference point so that the occupant reach interaction meets the predetermined reach criteria.

73. A method according to claim 65 including the step of varying a device representation of the at least one vehicle device so that the occupant reach interaction meets the predetermined criteria.

74. A method according to claim 73 wherein the device representation is selected from an electronically stored standard parts library.

75. A method according to claim 71 including the step of regenerating a vehicle design after making the locational change by changing at least one effected dimension of one of the at least one vehicle systems and the portion of the vehicle as required by the locational change.

76. A method according to claim 75 including the step of automatically selecting parts from an electronic parts library as a substitute for at least one vehicle system to meet a vehicle system change required by the locational change.