In-vehicle gateway apparatus, communication system for vehicle and program product for transmitting vehicle related data set

A technology of related data and data sets, which is applied in the field of vehicle-mounted gateway equipment, communication systems for vehicles and for sending vehicle-related data sets, and can solve the problems of different time, increased communication traffic, etc.

Active Publication Date: 2013-07-17
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the communication system disclosed in JP2002-530245A, when the vehicle-mounted gateway device converts vehicle-related data based on the corresponding protocol of each LAN and transmits the converted data to the corresponding LAN, the communication traffic of the low-speed LAN is higher than that of the high-speed LAN. Communication traffic is more likely to increase
Also, depending on the in-vehicle LAN connected to each ECU, the timing at which each ECU receives vehicle-related data sent from the data source may differ

Method used

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  • In-vehicle gateway apparatus, communication system for vehicle and program product for transmitting vehicle related data set
  • In-vehicle gateway apparatus, communication system for vehicle and program product for transmitting vehicle related data set
  • In-vehicle gateway apparatus, communication system for vehicle and program product for transmitting vehicle related data set

Examples

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no. 1 example ）

[0021] The following will refer to figure 1 The configuration of the communication system 5 for vehicles according to the first embodiment of the present disclosure is described. In the following, the communication system 5 for vehicles is also referred to as the communication system 5 . The communication system 5 includes an information providing device (INFO PROVAPPA) 11, a vehicle gateway device (GWAPPA) 21, a vehicle local area network (LAN) group 31, an automatic driving (AUTO DRIV) electronic control unit (ECU) 41, and a driving control (DRIV CONT) ECU 42 , Energy saving (ENERGY SAVE) ECU43, detour warning (CURVE WARN) ECU44 and deceleration (SPEED REDU) ECU45. The information providing device 11 provides vehicle-related data sets, including: a vehicle position data element representing the current position of the vehicle, and a forward map data set representing information related to the area ahead of the route.

[0022] The information providing device 11 includes an...

no. 2 example ）

[0057] The following will refer to Figure 5 and Figure 6 A communication system 5 for vehicles according to the second embodiment is described. The following description will omit the configuration similar to the communication system 5 according to the first embodiment. In the first embodiment, when the vehicle-mounted gateway device 21 receives more than one vehicle-related data set from the information providing device 11, the vehicle-mounted gateway device 21 transmits to the vehicle-mounted LAN in the same transmission order as that of more than one vehicle-related data set. Said more than one processed data set. For example, when the vehicle-mounted gateway device 21 receives three vehicle-related data sets A, B, and C from the information providing device 11 in the receiving order A, B, and C, the vehicle-mounted gateway device 21 generates and transmits them in the order of sending A, B, and C Three processed datasets A, B, C. In the communication system 5 accordi...

Embodiment ）

[0070] As described above, the identification data of each ECU connected to the medium-speed in-vehicle LAN 31b is added to the processed data set. Furthermore, identification data of each ECU connected to at least one of the high-speed on-vehicle LAN 31a and the low-speed on-vehicle LAN 31c may be added to the processed data set.

[0071] In the foregoing embodiments, the high-speed on-vehicle LAN 31a, the medium-speed on-vehicle LAN 31b, and the low-speed on-vehicle LAN 31c are physically separated from each other. Furthermore, the three in-vehicle LANs 31a, 31b, 31c can be realized in one in-vehicle LAN line in a logical manner. Logical modes may include virtual modes.

[0072] In the foregoing embodiments, one processed data set is generated for one target ECU. Additionally, one processed data set can be generated for one or more ECUs that require the same processed data set to perform operations. In this case, an identification data element of an ECU group comprising o...

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Abstract

An in-vehicle gateway apparatus (21) includes a first communication section (22) and a second communication section (24). The first communication section (22) receives a vehicle related data set including multiple data elements from a data transmit apparatus (11). The second communication section (24) transmits a processed data set processed based on the vehicle related data set to an in-vehicle LAN group (31) including a first in-vehicle LAN and a second in-vehicle LAN. The second in-vehicle LAN has a communication speed lower than a communication speed of the first in-vehicle LAN. The second communication section (24) transmits a first processed data set processed based on the vehicle related data set to the first in-vehicle LAN, and transmits a second processed data set processed based on the vehicle related data set and having less data elements than the first processed data set to the second in-vehicle LAN.

Description

technical field [0001] The present disclosure relates to an in-vehicle gateway device that receives vehicle-related data from an in-vehicle device and transmits vehicle-related data to another in-vehicle device, communication including the in-vehicle gateway device, and a method for transmitting a vehicle-related data set from one in-vehicle device to another method. Background technique [0002] Conventionally, a communication system for a vehicle for exchanging vehicle-related data within the vehicle is known as disclosed in JP2002-530245A (corresponding to US6941194B1). Such a communication system includes at least one computing unit placed in the vehicle for controlling predetermined operations (also called applications), a plurality of data sources connected to the computing unit, and the operating unit. The computing unit includes a priority management portion that prioritizes access privileges to the data bus based on a current load state of the data bus. [0003] R...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/66
CPCH04L12/40189H04L67/10H04L2012/40273
Inventor 中村修治
Owner DENSO CORP
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