DocumentCode :
1768422
Title :
Implementation of approach to functional safety compliant brushless DC motor control system
Author :
Ki-Ho Lee ; Hyun-Sik Ahn ; Chanwoo Moon
Author_Institution :
Dept. of Electr. Eng., Kookmin Univ., Seoul, South Korea
fYear :
2014
fDate :
22-25 Oct. 2014
Firstpage :
1438
Lastpage :
1442
Abstract :
In this paper, a brushless DC (BLDC) motor control system is implemented to apply to an x-by-wire system based on ISO 26262 which is a functional safety standard for road vehicle. Recently, conventional mechanical and hydraulic systems are replaced by electric/electronic (E/E) systems to enhance the vehicle driving performance and safety. Particularly, because x-by-wire systems have the safety-critical functions, the reliability of the systems is needed to be improved by considering functional safety. For hardware and software requirement considered functional safety, electronic control unit (ECU) of the proposed BLDC motor control system has a microcontroller with an asymmetric dual-core architecture and an external watchdog. Functional safety oriented monitoring functions are implemented by using the ECU design and also verified by using hardware-in-the-loop simulation (HILS). The proposed system is very effective for detecting the software faults and mitigating the influence of the hardware failures with the functional safety compliant ECU.
Keywords :
ISO standards; automotive electronics; brushless DC motors; control system synthesis; machine control; microcontrollers; road safety; road vehicles; BLDC motor control system; E-E systems; ECU; HILS; ISO 26262; asymmetric dual-core architecture; brushless DC motor control system; electric-electronic systems; electronic control unit; external watchdog; functional safety compliant; functional safety oriented monitoring functions; functional safety standard; hardware failures; hardware-in-the-Ioop simulation; hydraulic systems; microcontroller; reliability; road vehicle; safety-critical functions; software faults; vehicle driving performance; x-by-wire system; Computer architecture; Oscillators; Power supplies; Process control; Service-oriented architecture; Time factors; Voltage control; Brushless DC motor control; Functional safety; ISO 26262; X-by-wire system;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Control, Automation and Systems (ICCAS), 2014 14th International Conference on
Conference_Location :
Seoul
ISSN :
2093-7121
Print_ISBN :
978-8-9932-1506-9
Type :
conf
DOI :
10.1109/ICCAS.2014.6987786
Filename :
6987786
Link To Document :
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