System and method for retrieving and displaying vehicle control unit data
First Claim
1. A method of retrieving and displaying data from an onboard memory of an electronic control unit of a vehicle, the method comprising the steps of:
- communicating an identifier number from a scan tool to the electronic control unit, wherein the identifier number is associated with a vehicle component or a vehicle function;
communicating, from the electronic control unit to the scan tool, a memory address for a first data structure from a parameter identifier corresponding to the identifier number;
communicating, from the electronic control unit to the scan tool, an amount, formats and locations of data in the onboard memory;
communicating, from the electronic control unit to the scan tool, a version document number;
retrieving the data from the onboard memory to the scan tool;
storing a version document corresponding to the version document number in the scan tool;
inserting the retrieved data from the onboard memory in the version document; and
displaying the version document with the retrieved data inserted therein.
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Accused Products
Abstract
A system and method for retrieving and displaying data from an onboard memory of an electronic control unit in a vehicle is disclosed. The electronic control unit includes at least one parameter identifier that defines an address for a first data structure. The first data structure includes information on the amount and location of the data in the nonvolatile memory, as well as a version document number corresponding to a version document stored in a scan tool. The scan tool can access the parameter identifier and onboard data by the entry of an identifier number. The retrieved data is inserted into the version document for display.
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Citations
20 Claims
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1. A method of retrieving and displaying data from an onboard memory of an electronic control unit of a vehicle, the method comprising the steps of:
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communicating an identifier number from a scan tool to the electronic control unit, wherein the identifier number is associated with a vehicle component or a vehicle function;
communicating, from the electronic control unit to the scan tool, a memory address for a first data structure from a parameter identifier corresponding to the identifier number;
communicating, from the electronic control unit to the scan tool, an amount, formats and locations of data in the onboard memory;
communicating, from the electronic control unit to the scan tool, a version document number;
retrieving the data from the onboard memory to the scan tool;
storing a version document corresponding to the version document number in the scan tool;
inserting the retrieved data from the onboard memory in the version document; and
displaying the version document with the retrieved data inserted therein. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for retrieving and displaying data from a vehicle, the system comprising:
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an electronic control unit located in the vehicle having nonvolatile memory including a parameter identifier with a changeable memory address stored therein that is accessible via an identifier number associated with a vehicle component or function, and a first data structure beginning at the memory address that includes amount, location, and version document number information; and
a scan tool including a device for selectively communicating with the electronic control unit, and including a mass storage device with a version document stored therein corresponding to the version document number information stored in the nonvolatile memory of the electronic control unit, and a display capable of displaying the version document with data retrieved from the vehicle inserted therein. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. An electronic control system for use in a vehicle comprising:
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a data communication network adapted to selectively communicate with a scan tool; and
an electronic control unit including a controller operatively engaging the data communication network to receive and transmit data thereon, and nonvolatile memory in communication with the controller and including a parameter identifier having a memory address for accessing a first data structure, wherein the first data structure includes a first member indicative of an amount of data, a second member indicative of a vehicle function to which the data relates, and a third member indicative of a corresponding external document for inserting the data therein and displaying the external document. - View Dependent Claims (19, 20)
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Specification