Fault self-diagnosis system for ABS/ESC and HIL (Hardware-in-the-Loop) automation testing system thereof

Abstract

The invention provides a fault self-diagnosis system for an ABS / ESC and a HIL (Hardware-in-the-Loop) automation testing system thereof. The fault self-diagnosis system at least comprises a system basic hardware self-diagnosis module which carries out fault detection and diagnosis on basic hardware of the ABS / ESC, a CAN communication module which realizes CAN communication and fault detection processing, a fault detection and failure protection monitoring module which carries out monitoring analysis so as to determine each fault in the ABS / ESC and execute corresponding failure protection according to the fault, a fault diagnosis service module which is used for providing diagnosis service, an ABS / EBD function control module, a YSC function control module and a TCS function control module which are system function modules and are in charge of arbitrating and deciding a corresponding failure protection strategy when a system fault happens, and a fault warning module which is used for sending fault warning signals. The fault self-diagnosis system of the invention can carry out thorough fault self-diagnosis and failure protection on the ABS / ESC system, and due to the HIL (Hardware-in-the-Loop) testing system, full automation integrated verification test on the ABS / ESC fault self-diagnosis system can be realized.

Description

technical field [0001] The invention relates to the technical field of automobile safety, in particular to a fault self-diagnosis system for ABS / ESC and an HIL automatic test system thereof. Background technique [0002] ABS (Automobile Anti-lock Braking System): It is mainly composed of four wheel speed sensors, ABS hydraulic control module HCU and electronic control module ECU; its main functions are to prevent each wheel from locking when the car brakes (ABS), front and rear braking force Distribution (EBD) and car cornering brake control (CBC) functions. [0003] ESC (Automotive Electronic Stability Control System): It is mainly composed of four wheel speed sensors, master cylinder pressure sensor, lateral acceleration sensor and yaw rate sensor cluster, steering wheel angle sensor, ESC hydraulic control unit HCU and electronic control unit ECU; its main Functions include ABS anti-lock brakes, TCS drive anti-skid control, AYC active vehicle yaw control (oversteer or und...

AI Technical Summary

Problems solved by technology

In addition, at present, some automobile OEMs have made some preliminary attempts to construct the HIL (hardware-in-the-loop) test bench and test environment of the ABS / ESC system and realize its HIL (hardware-in-the-loop) automatic verification test. However, it is only limited to the general and rough braking performance of the whole vehicle, while constructing a complete and systematic ABS / ESC component R&D requirements-level HIL test bench and realizing a comprehensive and systematic ABS / ESC system fault injection Automated verification tests are still blank, such as in the realization of fault detection and failure protection verification tests of ABS / ESC sensors, solenoid valves and pump motors under various fault injection conditions

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