DISTRIBUTED DIAGNOSTICS ARCHITECTURE
First Claim
1. A distributed on-board diagnostic (OBD) architecture for a control system of a vehicle, comprising:
- a plurality of control modules that are in communication with one another; and
a designated master OBD control module that is one of said plurality of control modules, wherein said master OBD control module executes functions that a remainder of said plurality of control modules are incapable executing including at least one of arbitrating a malfunction indicator lamp (MIL) state, arbitrating and storing OBD freeze frame data and determining OBD status flags of said remainder of said plurality of control modules,
13 Assignments
0 Petitions
Accused Products
Abstract
A distributed on-board diagnostic (OBD) architecture for a control system of a vehicle includes a plurality of control modules that are in communication with one another and a designated master OBD control module that is one of the plurality of control modules. The master OBD control module performs functions that a remainder of the plurality of control modules are incapable of performing including at least one of arbitrating a malfunction indicator lamp (MIL) state, arbitrating and storing OBD freeze frame data and determining OBD status flags of the remainder of the plurality of control modules.
66 Citations
37 Claims
-
1. A distributed on-board diagnostic (OBD) architecture for a control system of a vehicle, comprising:
-
a plurality of control modules that are in communication with one another; and a designated master OBD control module that is one of said plurality of control modules, wherein said master OBD control module executes functions that a remainder of said plurality of control modules are incapable executing including at least one of arbitrating a malfunction indicator lamp (MIL) state, arbitrating and storing OBD freeze frame data and determining OBD status flags of said remainder of said plurality of control modules, - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A method of distributing on-board diagnostic (OBD) functions in a control system of a vehicles comprising:
-
interconnecting a plurality of control modules for communication with one another; designating one of said plurality of control modules as an OBD master control module; executing functions using said OBD master control module that a remainder of said plurality of control modules are incapable of executing including at least one of arbitrating a malfunction indicator lamp (MIL) state, arbitrating and storing OBD freeze frame data and determining OBD status flags of said remainder of said plurality of control modules, - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
-
-
25. A distributed on-board diagnostic (OBD) architecture for a control system of a vehicle, comprising:
-
a first plurality of control modules that are in communication with one another via a first communications bus; a second plurality of control modules that are in communication with one another via a second communications bus, and a designated master OBD control module that is one of said first and second pluralities of control modules, wherein said master OBD control module executes functions that a remainder of said first and second pluralities of control modules are incapable of executing including at least one of arbitrating a malfunction indicator lamp (MIL) state, arbitrating and storing OBD freeze frame data and determining OBD status flags of said remainder of said first and second pluralities of control modules. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
-
Specification