Home // PESARO 2018, The Eighth International Conference on Performance, Safety and Robustness in Complex Systems and Applications // View article

Safety Mechanism Implementation for Motor Applications in Automotive Microcontroller

Authors:
Chethan Murarishetty
Jayakrishna Guddeti
Saujal Vaishnav

Keywords: Safety; GTM; Automotive; Infineon Aurix Microcontroller, BLDC Motor; CCU6; IOM.

Abstract:
Safety is a critical feature in automotive microcontroller. Achieving highest safety standards is important in any microcontroller design. This paper presents a methodology to implement a safety mechanism in Brushless Direct Current (BLDC) Motor applications using Infineon Aurix Microcontroller modules like Generic Timer Module (GTM), Capture Compare Unit 6 (CCU6) and Input Output Monitor (IOM). The timer module in an automotive microcontroller is used in many applications like power train, power steering, transmission control, chassis, etc. Most of the recent automotive microcontrollers use GTM due to its scalable and configurable architecture. GTM combines sub-modules of different functionality in a configurable manner to form a complex timer module that serves different application domains. The BLDC motor application is implemented using different submodules of GTM like Timer Input Module (TIM), Timer Output Module (TOM), Sensor Pattern Evaluation (SPE) and Clock Management Unit (CMU). The safety concept is derived by using another timer module CCU6, which implements Motor Control application. IOM is used to compare the output signals of GTM and CCU6. IOM triggers an alarm if there is any mismatch in the output signals. Hence, a redundant approach is implemented to achieve the highest safety standard.

Pages: 21 to 26

Copyright: Copyright (c) IARIA, 2018

Publication date: April 22, 2018

Published in: conference

ISSN: 2308-3700

ISBN: 978-1-61208-628-6

Location: Athens, Greece

Dates: from April 22, 2018 to April 26, 2018