Vehicular diagnosis system for hybrid power vehicle and diagnosis method thereof

An on-board diagnostic system and hybrid electric vehicle technology, applied in the direction of electrical testing/monitoring, etc., can solve problems such as inability to monitor vehicle faults, and achieve the effects of simple structure, convenient use, and strong integration

Active Publication Date: 2009-12-16
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the OBD system on the current hybrid vehicle can only monitor the internal faults of the engine, and cannot monitor the faults of the whole vehicle

Method used

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  • Vehicular diagnosis system for hybrid power vehicle and diagnosis method thereof
  • Vehicular diagnosis system for hybrid power vehicle and diagnosis method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] An on-board diagnostic system for a hybrid electric vehicle includes an OBD controller 10, the OBD controller 10 is embedded in a vehicle controller VMS (Vehicle Management System), and the input and output ends of the OBD controller 10 are connected with a peripheral controller 20 and a diagnostic instrument. 40. The input and output ends of the external I / O interface 30 are connected, and the peripheral controller 20 includes a generator set controller GPU (Generator Powering Unit), a battery controller BMS (Battery Management System), and a motor controller MCU (Motor Control Unit). ), etc., such as figure 1 shown.

[0014] combine figure 1 The OBD controller 10 includes an OBD fault processing module 11, and the input and output terminals of the OBD fault processing module 11 are respectively connected with the input and output terminals of the OBD module 12, the EOBD module 13, the CAN driver module 15 and the I / O driver module 16. , the input and output ends of ...

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Abstract

The invention relates to a vehicular diagnosis system for a hybrid power vehicle, which comprises an OBD controller, its I/O terminal being connected with I/O terminals of a peripheral controller and a diagnostic apparatus. The invention also discloses a diagnosis method for a vehicular diagnosis system of a hybrid power vehicle. The OBD controller is connected with the peripheral controller to unifiedly receive fault monitoring signal emitted from the peripheral controller, unifiedly perform adjustment and confirmation to the fault, store the fault information, and display the fault through a fault indication lamp; the diagnostic apparatus obtains the fault information stored in the OBD controller through a CAN bus and processes the fault. The invention is capable of receiving, adjusting, confirming and processing the fault, which has strong integration, simple structure, and convenient use.

Description

technical field [0001] The invention relates to the field of automobile electronic control, in particular to an on-board diagnostic system of a hybrid electric vehicle. Background technique [0002] Under the current background of increasingly stringent automobile environmental protection regulations, according to regulations such as EOBD (Europe OnBoard Diagnostic) or OBD II, an online diagnostic system OBD (On Board Diagnostic) is generally required on modern vehicles to monitor the status of the vehicle. When the vehicle's emissions and other indicators do not meet the regulatory requirements, the OBD system will issue a warning message, such as lighting a MIL (Malfunction Indicator Lamp) warning light, and may prohibit or limit some functions of the system. In addition, in addition to the emission monitoring function required by regulations, the OBD system can also monitor the failures of key systems of the whole vehicle that are not required by regulations online, so as...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B23/02
Inventor 王振庆
Owner CHERY AUTOMOBILE CO LTD
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