OSEK网络管理规范

GND
Network Management Bus Sleep Bus is Awake
GND
Power
100%
Seat Control
Imax
0%
GND
ITrcvr
© 2006. Vector Informatik GmbH. All rights reserved. Any distribution or copying is subject to prior written approval by Vector. Slide: 9
Physical Basics
1. Method of resolution:
KL15 OFF ON
ECUs connected directly with the Clamp 15
Security Control Climate Control VCC GND
GND
Seat Control
GND
3. Method of resolution:
KL15
(as CAN Signal)
ECUs connected directly with the Clamp 30 and a Network Management is used
OFF OFF ON Security Control Climate Control KL30 GND
Physical Basics
3. Method of resolution:
KL15
(as CAN Signal)
ECUs connected directly with the Clamp 30 and a Network Management is used
OFF ON Security Control Climate Control KL30 GND
insert picture 8cm x 7cm
Direct OSEK Network Management
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© 2006. Vector Informatik GmbH. All rights reserved. Any distribution or copying is subject to prior written approval by Vector. V2.04 2008-08-24
There are several methods of resolution for these problems >>
© 2006. Vector Informatik GmbH. All rights reserved. Any distribution or copying is subject to prior written approval by Vector. Slide: 4
Control Transition to Bus Sleep Mode Determination of Net Configuration Monitoring of Configuration During Operation Prepare Status Information Bus-Off Handling
Agenda
Physical Basics Basics Mechanisms Structure of Animation Setup of a RING Transition to BUS SLEEP The LIMPHOME State A New Node in a Running Network Loss of a Node in the Network Bus error – BUS OFF OSEK NM State Machine
© 2006. Vector Informatik GmbH. All rights reserved. Any distribution or copying is subject to prior written approval by Vector. Slide: 12
Agenda
Physical Basics Basics Mechanisms Structure of Animation Setup of a RING Transition to BUS SLEEP The LIMPHOME State A New Node in a Running Network Loss of a Node in the Network Bus error – BUS OFF OSEK NM State Machine
GND
Network Management Bus Sleep Bus is Awake
GND
Power
100%
Seat Control
0%
GND
© 2006. Vector Informatik GmbH. All rights reserved. Any distribution or copying is subject to prior written approval by Vector. Slide: 8
Physical determined follow-up time before power down not possible Climate Control VCC GND
GND
Can be switched off immediately Seat Control Basically 3 kinds of ECUs can be switched off immediately follow-up time required GND low power mode but always on
© 2006. Vector Informatik GmbH. All rights reserved. Any distribution or copying is subject to prior written approval by Vector. Slide: 2
Physical Basics
Imin
Security Control Climate Control
KL30 GND
ITrcvr
GND
Network Management Bus Sleep Bus is Awake
GND
Power
100%
Seat Control
Imax
0%
GND
ITrcvr
© 2006. Vector Informatik GmbH. All rights reserved. Any distribution or copying is subject to prior written approval by Vector. Slide: 11
GND
© 2006. Vector Informatik GmbH. All rights reserved. Any distribution or copying is subject to prior written approval by Vector. Slide: 5
Physical Basics
1. Method of resolution:
KL15 OFF ON
ECUs connected directly with the Clamp 15
Should be working all the time to detect theft intensions Security Control
Security Control
The ECUs have different requirements for transition to ECU Sleep mode
Climate Control
Controlled transition to ECU Sleep mode
Seat Control
2. Method of resolution:
KL15 OFF OFF ON
ECUs connected directly with the Clamp 30
Security Control Climate Control
KL30 GND
GND
Power
100%
Seat Control The Battery discharges
Physical Basics
Summary
Distinguish between the Network Management state BUS SLEEP and the ECU is switched off or in low power mode
BUS SLEEP is the necessary condition for an ECU to go to low power mode or to switch off the ECU.
Physical Basics
3. Method of resolution:
KL15
(as CAN Signal)
ECUs connected directly with the Clamp 30 and a Network Management is used
Imax
OFF OFF ON
Imin
GND
0%
GND
© 2006. Vector Informatik GmbH. All rights reserved. Any distribution or copying is subject to prior written approval by Vector. Slide: 7
Physical Basics
Physical Basics
3. Method of resolution:
KL15
(as CAN Signal)
ECUs connected directly with the Clamp 30 and a Network Management is used
Imax
OFF OFF ON
Imax
Security Control Climate Control
KL30 GND
GND
Network Management Bus Sleep Bus is Awake
GND
Power
100%
Seat Control
Imax
0%
GND
ITrcvr
© 2006. Vector Informatik GmbH. All rights reserved. Any distribution or copying is subject to prior written approval by Vector. Slide: 10
Physical Basics
3 ECUs in the CAN network as an example
Quiescent current consumption (ECU Sleep mode) of the ECUs is a very important topic in the automotive environment
GND
© 2006. Vector Informatik GmbH. All rights reserved. Any distribution or copying is subject to prior written approval by Vector. Slide: 6
Physical Basics
© 2006. Vector Informatik GmbH. All rights reserved. Any distribution or copying is subject to prior written approval by Vector. Slide: 13
Basic Mechanisms – Tasks of the Network Management
Modern Vehicle with Lowspeed and Highspeed CAN bus (and gateways to other bus systems)
CAN Highspeed CAN Lowspeed LIN FlexRay MOST
© 2006. Vector Informatik GmbH. All rights reserved. Any distribution or copying is subject to prior written approval by Vector. Slide: 3