Vehicle diagnostic operation

• US 10,629,008 B2
• Filed: 11/20/2017
• Issued: 04/21/2020
• Est. Priority Date: 11/20/2017
• Status: Active Grant

• Current Assignee: Ford Global Technologies, LLC (Ford Motor Company)
• Original Assignee: Ford Global Technologies, LLC (Ford Motor Company)
• Inventors: Jammoussi, Hassene, Kumar, Pankaj, Makki, Imad Hassan
• Primary Examiner(s): Camby, Richard M
• Application Number:
  US15/817,742
• Publication Number:
  US 20190156599A1
• Time in Patent Office: 883 Days
• Field of Search: None
• CPC Class Codes: B60W 2040/0881 Seat occupation; Driver or passenger presence
• CPC Class Codes: B60W 2552/05 Type of road, e.g. motorways, local streets, paved or unpaved roads
• CPC Class Codes: B60W 2554/00 Input parameters relating to objects
• CPC Class Codes: B60W 2556/50 of positioning data, e.g. GPS [Global Positioning System] data
• CPC Class Codes: B60W 2720/10 Longitudinal speed
• CPC Class Codes: B60W 2720/106 Longitudinal acceleration
• CPC Class Codes: B60W 2720/12 Lateral speed
• CPC Class Codes: B60W 2720/14 Yaw
• CPC Class Codes: B60W 30/02 Control of vehicle driving stability
• CPC Class Codes: B60W 30/146 Speed limiting
• CPC Class Codes: B60W 30/188 Controlling power parameters of the driveline, e.g. determining the required power
• CPC Class Codes: B60W 40/06 Road conditions
• CPC Class Codes: B60W 40/08 related to drivers or passengers
• CPC Class Codes: G01C 21/3453 Special cost functions, i.e. other than distance or default speed limit of road segments
• CPC Class Codes: G07C 5/0808 Diagnosing performance data testing of vehicles G01M17/00; testing of electrical installation on vehicles G01R31/005

Abstract

A system includes a processor and a memory. The memory stores instructions executable by the processor to, based on a vehicle destination, identify a diagnostic condition and a specified operating pattern of a vehicle component that includes at least one of vehicle propulsion, braking, and steering. The memory stores instructions executable by the processor to operate the vehicle based on the vehicle component and the operating pattern.

Claims

1. A system, comprising a processor and a memory, the memory storing instructions executable by the processor to:

based on a destination of a vehicle, identify,

(1) from a plurality of possible vehicle diagnostic conditions, and based on the vehicle destination as well as at least one of terrain data, vehicle occupancy data, and traffic data, a diagnostic condition to be met before a diagnostic operation is to be performed, and

(2) a specified operating pattern of a component of the vehicle, the component including at least one of vehicle propulsion, braking, and steering, the specified operating pattern including one or more physical parameters of operation of the component of the vehicle; and

perform a diagnostic operation upon meeting the diagnostic condition, wherein the diagnostic operation includes operating the vehicle based on the vehicle component and the operating pattern and then verifying whether a fault condition was met based on operating the vehicle.

2. The system of claim 1, wherein the one or more physical parameters include a maximum acceleration and a minimum acceleration.

3. The system of claim 2, wherein the instructions further include instructions to operate the vehicle at an acceleration greater than the minimum acceleration and less than the maximum acceleration.

4. The system of claim 1, wherein one or more physical parameters include a maximum yaw rate and a minimum yaw rate.

5. The system of claim 1, wherein one or more physical parameters include a maximum speed and a minimum speed associated with a road type.

6. The system of claim 1, wherein the instructions further include instructions to select the vehicle diagnostic condition from a plurality of possible vehicle diagnostic conditions based on an assigned priority of each of the possible diagnostic conditions.

7. The system of claim 1, wherein the vehicle diagnostic condition includes one or more of a substantially constant vehicle engine speed for a predetermined time, a deceleration caused by a fuel shut off, exceeding a predetermined vehicle speed, and applying a predetermined brake pressure.

8. The system of claim 1, wherein the instructions include further instructions to adjust the specified operating pattern upon determining that the vehicle is operating without a vehicle occupant.

9. A method, comprising:

based on a destination of a vehicle, identifying,

(1) from a plurality of possible vehicle diagnostic conditions, and based on the vehicle destination as well as at least one of terrain data, vehicle occupancy data, and traffic data, a diagnostic condition to be met before a diagnostic operation is to be performed, and

(2) a specified operating pattern of a component of the vehicle, the component including at least one of vehicle propulsion, braking, and steering, the specified operating pattern including one or more physical parameters of operation of the component of the vehicle; and

perform a diagnostic operation upon meeting the diagnostic condition, wherein the diagnostic operation includes operating the vehicle based on the vehicle component and the operating pattern and then verifying whether a fault condition was met based on operating the vehicle.

10. The method of claim 9, wherein one or more physical parameters include a maximum acceleration and a minimum acceleration.

11. The method of claim 10, further comprising operating the vehicle at an acceleration greater than the minimum acceleration and less than the maximum acceleration.

12. The method of claim 9, further comprising selecting the vehicle diagnostic condition from a plurality of possible vehicle diagnostic conditions based on an assigned priority of each of the possible diagnostic conditions.

13. The method of claim 9, wherein the vehicle diagnostic condition includes one or more of a substantially constant vehicle engine speed for a predetermined time, a deceleration caused by a fuel shut off, exceeding a predetermined vehicle speed, and applying a predetermined brake pressure.