Multi-functional automotive central information integration system for realizing filtration and forwarding between two CANs

An information integration system and multi-functional technology, which is applied in the field of multi-functional vehicle central information integration system, can solve problems such as the inability to realize the status display of the vehicle body, and achieve the effects of saving manufacturing costs, ensuring real-time performance and accuracy, and saving board-level costs

Active Publication Date: 2009-10-21
CHINA AUTOMOTIVE TECH & RES CENT
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] So far, commercialized automotive instrumentation systems have not been able to integrate high-speed CAN and low-speed CAN bus bridges, vehicle operating status and body status display, GPS display, and rearview CCD display functions in one

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  • Multi-functional automotive central information integration system for realizing filtration and forwarding between two CANs
  • Multi-functional automotive central information integration system for realizing filtration and forwarding between two CANs
  • Multi-functional automotive central information integration system for realizing filtration and forwarding between two CANs

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Embodiment Construction

[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] Such as figure 1 As shown, the vehicle network electronic framework in the present invention includes a power bus node and a vehicle body bus node. The power bus node is composed of an engine ECU, an automatic transmission ECU, an ABS ECU and an airbag ECU. The body control ECU and the rear body control ECU are composed; wherein, the front body control ECU is responsible for collecting body sensor, combination switch signal and controlling the front body actuator; the rear body control ECU is responsible for controlling the rear body actuator; The central information integration system as the carrier connects the power bus node and the body bus node, and the required data is obtained through two CAN buses to complete the filtering and forwarding of network data, information display and information storage; the content of the in...

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Abstract

The invention discloses a multi-functional automotive central information integration system for realizing filtration and forwarding between two CANs. Content displayed by an LCD comprises vehicle running state, vehicle body state display, navigation and position display and reversing backsight display. The method for realizing data filtration and forwarding between the two CANs comprises the following steps of: a, judging whether CAN data forwarding is idle and whether data exist in an FIFO buffer of CAN information, executing step e if .f., otherwise, sequentially executing the next step; b, reading frame data from the buffer, judging whether a data frame needs to be forwarded, executing step d if .f., otherwise, sequentially executing the next process; c, setting a forwarding busy flag bit, transferring the data frame to another CAN interface, clearing the forwarding busy flag bit after the data frame is sent, and returning to the step a; d, adjusting a data sending pointer, and processing the data frame; and e, executing the corresponding control display in a central information integration system according to frame definition (comprising parameter groups during data filtration and forwarding and corresponding parameter definition).

Description

technical field [0001] The present invention relates to an automobile central information integration system, in particular to a multi-functional automobile central information integration system which integrates vehicle body CAN / power CAN bus network bridge function, instrument function, navigation positioning (GPS) function, and rear view function. system. Background technique [0002] At present, in terms of the display function of the human-machine interface, most of my country's automobile central information integration systems still stay on the traditional functions of instrument display, mainly including speedometer, tachometer, fuel gauge, water temperature gauge, mileage and various Alarm indicator light. Mid-to-high-end cars are equipped with a central information display on the instrument system to display information such as instantaneous fuel consumption, average fuel consumption, average speed, mileage, door opening and closing status, indoor and outdoor tempe...

Claims

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Application Information

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IPC IPC(8): B60R16/023B60Q9/00B60Q3/04B60K35/00B60L11/18B60K1/02
CPCY02T10/7005Y02T10/70
Inventor 张宏伟王旭龚进峰曹健李艳文
Owner CHINA AUTOMOTIVE TECH & RES CENT
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