Systems and methods for accessing vehicle communications bus information for an application processor

• US 9,734,119 B1
• Filed: 07/10/2015
• Issued: 08/15/2017
• Est. Priority Date: 07/10/2014
• Status: Active Grant

• Current Assignee: Scantool.Net, LLC
• Original Assignee: Scantool.Net, LLC
• Inventors: Chetverikov, Vitaliy, Maksimov, Vitaliy, Hartsoch, Jacob, Meeks, Lester, Moeller, Mark M.
• Primary Examiner(s): Figueroa, Jaime
• Application Number:
  US14/796,941
• Time in Patent Office: 767 Days
• Field of Search: 701 1, 701 291
• CPC Class Codes: B60R 16/023 for transmission of signals between vehicle parts or subsystems
• CPC Class Codes: G06F 1/26 Power supply means, e.g. regulation thereof for memories G11C
• CPC Class Codes: G06F 13/22 using successive scanning, e.g. polling G06F13/24 takes precedence
• CPC Class Codes: G06F 13/4068 Electrical coupling
• CPC Class Codes: G06F 13/4282 on a serial bus, e.g. I2C bus, SPI bus on daisy chain buses G06F13/4247
• CPC Class Codes: G07C 5/008 communicating information to a remotely located station transmission systems for measured values G08C
• CPC Class Codes: G07C 5/02 Registering or indicating driving, working, idle, or waiting time only apparatus forming part of taximeters G07B13/00
• CPC Class Codes: G07C 5/08 Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
• CPC Class Codes: H04L 67/12 specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks

Abstract

The present application discloses a system and method for accessing vehicle communications bus information outside the bandwidth of a limited CPU without missing critical information. The system and method for accessing vehicle communications bus information outside the bandwidth of a limited CPU generally includes a vehicle interface processor, that processor'"'"'s interconnect to an application processor and the vehicle interface. The vehicle interface software that vehicle interface processor has running on it and the vehicle interface processor'"'"'s connection to the vehicle may also be included.

Claims

1. A vehicle interface system for accessing data in real time from an onboard diagnostics system through a vehicle interface and a vehicle communications bus and transmitting the data to an application processor running an application primary process, comprising:

a vehicle interface processor;

a processor data interconnect system capable of transferring data between the vehicle interface processor and the application processor;

a vehicle communications bus electrical connection system operatively connected to the vehicle interface and capable of transferring diagnostic data between the vehicle interface processor and the onboard diagnostics system;

vehicle interface software running on the vehicle interface processor; and

an application data collection process running on the application processor using spare cycles not used by the application primary process;

wherein

the application data collection process communicates with the vehicle interface software using the processor data interconnect system to cause the vehicle interface processor

to collect data from the onboard diagnostics system in real time using the vehicle communications bus electrical connection system,

to store the data collected from the onboard diagnostics system; and

to transfer the data collected from the onboard diagnostics system to the application processor using the processor data interconnect system as requested by the application data collection process.

2. The vehicle interface system as recited in claim 1, further comprising:

a processor power and control system capable of transferring processor power and control signals between the vehicle interface processor and the application processor;

wherein

the vehicle interface processor further sends processor power and control signals to and receives processor power and control signals from the application processor using the processor power and control system.

3. The vehicle interface system as recited in claim 1, in which the vehicle interface processor comprises a vehicle communications bus data polling list identifying data to be collected from the onboard diagnostics system.

4. The vehicle interface system as recited in claim 1, in which the vehicle interface processor comprises a vehicle communications bus received data processor for processing the stored data collected from the onboard diagnostics system.

5. The vehicle interface system as recited in claim 1, in which the vehicle interface processor comprises a vehicle communications bus polling scheduler for determining when data is collected from the onboard diagnostics system.

6. The vehicle interface system as recited in claim 5, in which the vehicle communications bus polling scheduler limits collection of data from the onboard diagnostics system based on traffic on the vehicle communications bus.

7. The vehicle interface system as recited in claim 1, in which the vehicle interface processor comprises a security component for limiting access to the vehicle communications bus.

8. A vehicle interface system comprising

a vehicle comprising

an onboard diagnostics system,

a vehicle interface, and

a vehicle communications bus;

a vehicle interface processor;

an application processor;

a processor data interconnect system capable of transferring data between the vehicle interface processor and the application processor; and

a vehicle communications bus electrical connection system operatively connected to the vehicle interface and capable of transferring diagnostic data between the vehicle interface processor and the onboard diagnostics system;

vehicle interface software running on the vehicle interface processor; and

an application data collection process running on the application processor using spare cycles not used by the application primary process;

wherein

the application data collection process communicates with the vehicle interface software using the processor data interconnect system to cause the vehicle interface processor

to collect data from the onboard diagnostics system in real time using the vehicle communications bus electrical connection system,

stores the data collected from the onboard diagnostics system; and

transfers the data collected from the onboard diagnostics system to the application processor using the processor data interconnect system as requested by the application data collection process.

9. The vehicle interface system as recited in claim 8, further comprising:

a processor power and control system capable transferring processor power and control signals between the vehicle interface processor and the application processor;

wherein

the vehicle interface processor further sends processor power and control signals to and receives processor power and control signals from the application processor using the processor power and control system.

10. The vehicle interface system as recited in claim 8, in which the vehicle interface processor comprises a vehicle communications bus data polling list identifying data to be collected from the onboard diagnostics system.

11. The vehicle interface system as recited in claim 8, in which the vehicle interface processor comprises a vehicle communications bus received data processor for processing the stored data collected from the onboard diagnostics system.

12. The vehicle interface system as recited in claim 8, in which the vehicle interface processor comprises a vehicle communications bus polling scheduler for determining when data is collected from the onboard diagnostics system.

13. The vehicle interface system as recited in claim 12, in which the vehicle communications bus polling scheduler limits collection of data from the onboard diagnostics system based on traffic on the vehicle communications bus.

14. The vehicle interface system as recited in claim 8, in which the vehicle interface processor comprises a security component for limiting access to the vehicle communications bus.

15. A method of accessing data from an onboard diagnostics system through a vehicle interface and a vehicle communications bus and transmitting the data to an application processor, comprising the steps of:

providing a vehicle interface processor;

providing a processor data interconnect system capable of transferring data between the vehicle interface processor and the application processor; and

providing a vehicle communications bus electrical connection system operatively connected to the vehicle interface and capable of transferring diagnostic data between the vehicle interface processor and the onboard diagnostics system;

running vehicle interface software on the vehicle interface processor;

running an application data collection process on the application processor using spare cycles not used by the application primary process; and

causing the application data collection process to communicate with the vehicle interface software using the processor data interconnect system to cause the vehicle interface processor

to collect data from the onboard diagnostics system in real time using the vehicle communications bus electrical connection system,

to store the data collected from the onboard diagnostics system; and

to transfer the data collected from the onboard diagnostics system to the application processor using the processor data interconnect system as requested by the application data collection process.

16. The method as recited in claim 15, further comprising the steps of:

providing a processor power and control system capable of transferring processor power and control signals between the vehicle interface processor and the application processor; and

causing the vehicle interface processor to send processor power and control signals to and receives processor power and control signals from the application processor using the processor power and control system.

17. The method as recited in claim 15, in which the vehicle interface processor comprises a vehicle communications bus data polling list identifying data to be collected from the onboard diagnostics system.

18. The method as recited in claim 15, further comprising a vehicle communications bus received data processor for processing the stored data collected from the onboard diagnostics system.

19. The method as recited in claim 15, in which the vehicle interface processor comprises a vehicle communications bus polling scheduler for determining when data is collected from the onboard diagnostics system.

20. The method as recited in claim 19, in which the vehicle communications bus polling scheduler limits collection of data from the onboard diagnostics system based on traffic on the vehicle communications bus.

21. The method as recited in claim 15, in which the vehicle interface processor comprises a security component for limiting access to the vehicle communications bus.