Method and apparatus for distributing tasks of AUTOSAR operating system

Patent metadata

Field	Value
Publication number	US-10452432-B2
Application number	US-201715473507-A
Country	US
Kind code	B2
Filing date	Mar 29, 2017
Priority date	Mar 29, 2016
Publication date	Oct 22, 2019
Grant date	Oct 22, 2019

Abstract

Provided are a method of distributing tasks of an AUTomotive Open System Architecture (AUTOSAR) operating system and managing OsTask using OsAlarm in the AUTOSAR operating system, the method comprises, storing in Counter_BSW a value of a counter at a time when a function for setting an alarm for a basic software (BSW) module is called, storing in Counter_RTE the value of the counter at a time when a function for setting an alarm for an application software (ASW) module is called and correcting an offset value of the alarm for the ASW module using a value of Counter_BSW and a value of Counter_RTE.

First claim

What is claimed is:

1. A method of distributing tasks of an AUTomotive Open System Architecture (AUTOSAR) operating system and managing OsTask using OsAlarm in the AUTOSAR operating system, the method comprising:
storing in Counter_BSW a value of a counter at a time when a function for setting an alarm for a basic software (BSW) module is called;
storing in Counter_RTE the value of the counter at a time when a function for setting an alarm for an application software (ASW) module is called; and
correcting an offset value of the alarm for the ASW module using a value of Counter_BSW and a value of Counter_RTE.

2. The method of claim 1 , wherein the function for setting the alarm for the BSW module is a SchM_Init function, the function for setting the alarm for the ASW module is an Rte_Start function, and the SchM_Init function is executed before the Rte_Start function.

3. The method of claim 1 , wherein the correcting of the offset value comprises:
comparing the value of Counter_RTE with a value of (Counter_BSW+Offset); and
setting a new offset when the value of Counter_RTE is greater than the value of (Counter_BSW+Offset),
wherein the new offset is set by
new Offset=(Cycle−((Counter_RTE−(Counter_BSW+Offset)) % Cycle)), where Cycle is a cycle of the counter.

4. The method of claim 1 , wherein the correcting of the offset value comprises:
comparing the value of Counter_RTE with a value of (Counter_BSW+Offset); and
setting a new offset when the value of Counter_RTE is smaller than the value of (Counter_BSW+Offset),
wherein the new offset is set by
new Offset=(Cycle−(((Counter_BSW+Offset)−Counter_RTE) % Cycle)), where Cycle is a cycle of the counter.

5. An apparatus for distributing tasks of an AUTOSAR operating system and managing OsTask using OsAlarm in the AUTOSAR operating system, the apparatus comprising:
a Counter_BSW storage unit which stores in Counter_BSW a value of a counter at a time when a function for setting an alarm for a BSW module is called;
a Counter_RTE storage unit which stores in Counter_RTE the value of the counter at a time when a function for setting an alarm for an ASW module is called; and
an Offset correction unit which corrects an offset value of the alarm for the ASW module using a value of Counter_BSW and a value of Counter_RTE.

6. A method of correcting an alarm offset when setting two or more alarms using a counter in an embedded operating system, the method comprising:
storing in a first variable a value of the counter at a time when a function for setting a first alarm for a basic software (BSW) module is called;
storing in a second variable a value of the counter at a time when a function for setting a second alarm for an application software (ASW) module is called; and
correcting an offset value of the second alarm using a value of the first variable and a value of the second variable.

7. The method of claim 6 , wherein the correcting of the offset value of the second alarm comprises:
comparing the value of the second variable with (the value of the first variable+the offset value); and
setting a new offset when the value of the second variable is greater than (the value of the first variable+the offset value), wherein the new offset is set by new offset=(counter cycle−(value of the second variable−(value of the first variable)+offset value)) % counter cycle)).

8. The method of claim 6 , wherein the correcting of the offset value of the second alarm comprises:
comparing the value of the second variable with (the value of the first variable+the offset value); and
setting a new offset when the value of the second variable is smaller than (the value of the first variable+the offset value), wherein the new offset is set by
new offset=(counter cycle−(((value of the first variable+offset value)−value of the second variable) % counter cycle)).

Assignees

• Hyundai Autron Co Ltd

Inventors

• Lim Dae-Hwan

Classifications

• G06F9/4825

  Interrupt from clock, e.g. time of day · CPC title

• H04L12/40 Primary

  Bus networks · CPC title

• H04J3/06

  Synchronising arrangements {(for television systems H04N5/04; bit-synchronisation H04L7/00)} · CPC title

• G06F9/4881 Primary

  Scheduling strategies for dispatcher, e.g. round robin, multi-level priority queues · CPC title

• G06F9/3824

  Operand accessing · CPC title