Vehicle control unit and vehicle control system having the same

• US 20050278093A1
• Filed: 06/07/2005
• Published: 12/15/2005
• Est. Priority Date: 06/10/2004
• Status: Active Grant

• Current Assignee: DENSO Corporation
• Original Assignee: DENSO Corporation
• Inventors: Kameyama, Shogo
• Granted Patent: US 7,343,234 B2
• Time in Patent Office: Days
• US Class Current: 701/36
• CPC Class Codes: B60R 16/0373 Voice control in general G10L
• CPC Class Codes: B60W 2050/0022 Gains, weighting coefficients or weighting functions
• CPC Class Codes: B60W 2510/0604 Throttle position
• CPC Class Codes: B60W 2540/12 Brake pedal position
• CPC Class Codes: B60W 40/09 Driving style or behaviour
• CPC Class Codes: B60W 50/085 Changing the parameters of the control units, e.g. changing limit values, working points by control input

Abstract

A vehicle control system has a detection section, a vehicle control unit, and a function section. The vehicle control unit has a memory section, a user condition determination section, a intention determination section, a function selection section, and a function control section. The user condition determination section determines movements and conditions of a user based on outputs of the detection section. The intention determination section determines intentions of the user based on results of the user condition determination performed by the user condition determination section and intention map data read from the memory section. The function selection section selects a function from a function section that includes multiple functions based on a result of the intention determination.

Claims

1. A vehicle control unit comprising:

memory means that stores a first data that indicates a correlation between a movement and a condition of a user and an intention of the user;

user condition determination means that determines a movement and a condition of the user based on a result of movement and condition detection performed by user detection means;

intention determination means that determines an intention of the user based on the first data and the result of the movement and condition determination;

function control means that controls a plurality of functions installed in a vehicle; and

function selection means that selects at least one function from the plurality of functions based on the intention determined by the intention determination means, and outputs an instruction signal for controlling the selected function to the function control means.

2. The vehicle control unit according to claim 1, wherein the intention determination means determines an intention of the user based on the first data and a plurality of results of the movement and condition determination when the plurality of results are provided by the user condition determination means.

3. The vehicle control unit according to claim 2, wherein;

the first data contains first-group items and second-group items;

the first-group items are related to movements and conditions of the user;

the second-group items are related to intentions of the user;

the first data indicates correlations between the first-group items and the second-group items;

the intention determination means refers to the first data, and selects the second-group items that have correlations to the first-group items that correspond to the results of the movement and condition determination; and

the intention determination means determines an intention of the user based on the selected second-group items.

4. The vehicle control unit according to claim 3, wherein:

the first-group items are classified into categories according to levels of the correlations to the second-group items;

the categories are marked with different priority levels; and

the intention determination means selects the second-group items with reference to the priority levels, and determines an intention of the user based on the selected second-group items.

5. The vehicle control unit according to claim 3, wherein:

the first-group items are rated on a scale that is determined according to levels of the correlations to the second-group items to have specific ratings; and

the intention determination means selects the second-group items with reference to the ratings, and determines an intention of the user based on the selected second-group items.

6. The vehicle control unit according to claim 5, further comprising alteration means that alters the ratings based on an operation performed by the user for controlling one of the plurality of functions when the operation conflicts with control of the selected function performed by the function control means.

7. The vehicle control unit according to claim 5, further comprising alteration means that alters the ratings based on an operation of the user when the operation conflicts with control of the selected function performed by the function control means.

8. The vehicle control unit according to claim 1, wherein:

the memory means further stores a second data that indicates correlations between the plurality of functions and intentions of the user;

the function selection means selects at least one function from the plurality of functions based on the intention determined by the intention determination means and the second data.

9. The vehicle control unit according to claim 8, wherein:

the second data contains the second-group items and third-group items;

the third-group items are related to the functions of the plurality of functions;

the second data indicates correlations between the second-group items and the third-group items;

the second-group items are classified into categories according to levels of the correlations to the third-group items;

the function selection means refers to the second data, and selects the third-group items that have correlations to the second-group items that correspond to the intention determined by the intention determination means; and

the function selection means selects a function from the plurality of the functions based on the selected third-group items.

10. The vehicle control unit according to claim 9, further comprising alteration means that alters the ratings based on an operation performed by the user for controlling one of the plurality of functions when the operation conflicts with control of the selected function performed by the function control means.

11. The vehicle control unit according to claim 9, further comprising alteration means that alters the ratings based on an operation of the user when the operation conflicts with control of the selected function performed by the function control means.

12. The vehicle control unit according to claim 1, further comprising environment determination means that determines an environment of the vehicle based on an output of condition detecting means that detects vehicle and surrounding conditions, wherein the function selection means selects the function with reference to the determined environment.

13. The vehicle control unit according to claim 12, wherein the environment determination section further determines a position of the user.

14. The vehicle control unit according to claim 12, wherein the vehicle and surrounding conditions include driving conditions, traffic conditions, road conditions, and weather conditions.

15. A vehicle control system comprising:

a vehicle control unit having memory means that stores a first data that indicates a correlation between a movement and a condition of a user and an intention of the user, user condition determination means that determines a movement and a condition of the user based on a result of movement and condition determination performed by detection means, intention determination means that determines an intention of the user based on the first data and the result of the movement and condition determination, function control means that controls a plurality of functions installed in a vehicle, and function selection means that selects at least one function from the plurality of functions based on the intention determined by the intention determination means, and outputs an instruction signal for controlling the selected function to the function control means;

user detection means that performs user movement and condition detection; and

condition detection means that detects vehicle and surrounding conditions.

16. The vehicle control system according to claim 15, wherein the user detection means includes at least one of image capturing means and voice capturing means.

17. The vehicle control system according to claim 15, wherein the condition detection means includes at least image capturing means.