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Vehicle component fault detection

A technology for vehicle components and faults, applied in the direction of registration/indication of vehicle operation, registration/indication, instruments, etc.

Pending Publication Date: 2022-05-13
FORD GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Limited memory space in vehicle component storage (eg, memory included in an ECU) can limit the amount and type of data collected by the computer

Method used

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  • Vehicle component fault detection
  • Vehicle component fault detection
  • Vehicle component fault detection

Examples

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Embodiment Construction

[0038] Reserving memory space for dynamically identified data categories allows vehicle electronic control units (ECUs) and the like to provide data that would otherwise not be stored during vehicle operation. For example, a fault condition such as indicated by a diagnostic trouble code (DTC), etc. may be detected, but due to storage limitations, one or more parameters (i.e., Certain types of data that may be available from vehicle components and / or via the vehicle network) may not have been stored. Reserving memory space for each parameter that can be used to diagnose a fault condition would require more space than is available in the ECU. Therefore, in order to improve memory allocation in the ECU, parameters associated with fault conditions but not yet reserved in memory may be assigned a specified set of memory spaces and parameter identifiers. These non-reserved memory spaces and parameter identifiers can then be accessed to store data for dynamically allocated parameter...

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Abstract

The invention provides vehicle component fault detection. A computer includes a processor and a memory storing instructions executable by the processor to receive one or more parameters of a vehicle condition to be monitored, assign a non-reserved parameter identifier to each of the parameters, and transmit the non-reserved parameter identifier to the processor. A respective memory space is assigned to each of the assigned non-reserved parameter identifiers, and the parameter is stored in the memory space.

Description

technical field [0001] The present disclosure generally relates to vehicle fault detection systems. Background technique [0002] A vehicle computer can monitor vehicle operation by collecting data from various components. Data may be stored in a dedicated memory space of a vehicle component, typically in a dedicated reserved memory space of an electronic control unit (ECU) or the like. Limited memory space in vehicle component storage (eg, memory included in an ECU) can limit the amount and type of data collected by the computer. For example, vehicles are often provided with OBD-II (On Board Diagnostics) for reporting data and / or diagnosing fault conditions in the vehicle. The OBD-II Parameter ID (PID), also known as the Diagnostic ID (DID), is a code, ie, identifier, for data that can be requested from a vehicle via the OBD-II port in the vehicle. The PID provides access to data stored eg in the ECU's memory. A device such as an ECU provides memory for a limited number...

Claims

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Application Information

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IPC IPC(8): B60W50/02
CPCB60W50/0205B60W2556/10G07C5/0841G07C5/008G07C5/0808G07C5/006
Inventor 艾德·M·杜道尔R·R·詹特斯
Owner FORD GLOBAL TECH LLC