CA2226421A1 - Data transmission method and system therefor - Google Patents

Data transmission method and system therefor

Info

Publication number
CA2226421A1
CA2226421A1 CA002226421A CA2226421A CA2226421A1 CA 2226421 A1 CA2226421 A1 CA 2226421A1 CA 002226421 A CA002226421 A CA 002226421A CA 2226421 A CA2226421 A CA 2226421A CA 2226421 A1 CA2226421 A1 CA 2226421A1
Authority
CA
Canada
Prior art keywords
data
control systems
transmission
retransmission
data transmission
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002226421A
Other languages
French (fr)
Other versions
CA2226421C (en
Inventor
Hiroshi Hashimoto
Jun Ishii
Yuji Nagatani
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP5048560A external-priority patent/JP2947437B2/en
Priority claimed from JP5048559A external-priority patent/JP2857655B2/en
Priority claimed from JP5080216A external-priority patent/JP2784709B2/en
Priority claimed from JP5084079A external-priority patent/JP2947496B2/en
Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority claimed from CA002115730A external-priority patent/CA2115730C/en
Publication of CA2226421A1 publication Critical patent/CA2226421A1/en
Application granted granted Critical
Publication of CA2226421C publication Critical patent/CA2226421C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

A data transmission system for a vehicle includes a plurality of control systems installed on the vehicle, and a network bus connecting the plurality of control systems with each other for circulating a transmission right through the plurality of control systems to thereby perform transmission of a message between the plurality of control systems. According to a first aspect, each of the control systems starts transmitting data when it is detected that the transmission right is not generated or lost from the system, and continues transmitting the data when no collision of data transmitted from the present control system with data transmitted from the rest of the plurality of control systems, or when by mediation for avoiding the collision is detected, it is determined to continue data transmission. According to a second aspect, the maximum number of times of retransmission to be permitted is determined according to a type of failure in transmission identified, and the retransmission is performed so long as the number times of retransmission of the data does not exceed the maximum number of times of retransmission to be permitted. According to a fourth aspect, the message comprises a first response field for receiving a first acknowledging response output from a control system having received the transmission right, and a second response field for receiving a second acknowledging response output from a control system having received data.
CA002226421A 1993-02-15 1994-02-15 Data transmission method and system therefor Expired - Fee Related CA2226421C (en)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
JP5048560A JP2947437B2 (en) 1993-02-15 1993-02-15 Data transmission method
JP5-48560 1993-02-15
JP5048559A JP2857655B2 (en) 1993-02-15 1993-02-15 Vehicle data transmission system
JP5-48559 1993-02-15
JP5080216A JP2784709B2 (en) 1993-03-15 1993-03-15 Vehicle data transmission system
JP5-80216 1993-03-15
JP5-84079 1993-03-18
JP5084079A JP2947496B2 (en) 1993-03-18 1993-03-18 Vehicle data transmission system
CA002115730A CA2115730C (en) 1993-02-15 1994-02-15 Data transmission method and system therefor

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002115730A Division CA2115730C (en) 1993-02-15 1994-02-15 Data transmission method and system therefor

Publications (2)

Publication Number Publication Date
CA2226421A1 true CA2226421A1 (en) 1994-08-16
CA2226421C CA2226421C (en) 2002-10-08

Family

ID=27508539

Family Applications (2)

Application Number Title Priority Date Filing Date
CA002226421A Expired - Fee Related CA2226421C (en) 1993-02-15 1994-02-15 Data transmission method and system therefor
CA002226477A Expired - Fee Related CA2226477C (en) 1993-02-15 1994-02-15 Data transmission method and system therefor

Family Applications After (1)

Application Number Title Priority Date Filing Date
CA002226477A Expired - Fee Related CA2226477C (en) 1993-02-15 1994-02-15 Data transmission method and system therefor

Country Status (1)

Country Link
CA (2) CA2226421C (en)

Also Published As

Publication number Publication date
CA2226421C (en) 2002-10-08
CA2226477A1 (en) 1994-08-16
CA2226477C (en) 2002-07-16

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