OSEK网络管理规范

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
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
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
© 2006. Vector Informatik GmbH. All rights reserved. Any distribution or copying is subject to prior written approval by Vector. Slide: 2
Physical Basics
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
GND
© 2006. Vector Informatik GmbH. All rights reserved. Any distribution or copying is subject to prior written approval by Vector. Slide: 5
Physical Basics
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
insert picture 8cm x 7cm
Direct OSEK Network Management
© 2006. Vector Informatik GmbH. All rights reserved. Any distribution or copying is subject to prior written approval by Vector. V2.04 2008-08-24
GND
© 2006. Vector Informatik GmbH. All rights reserved. Any distribution or copying is subject to prior written approval by Vector. Slide: 6
Physical Basics
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
Security Control
The ECUs have different requirements for transition to ECU Sleep mode
Climat来自百度文库 Control
Controlled transition to ECU Sleep mode
Seat Control
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
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
GND
0%
GND
© 2006. Vector Informatik GmbH. All rights reserved. Any distribution or copying is subject to prior written approval by Vector. Slide: 7