Configuration parameter downloading device and downloading method of configurable control modules on passenger car body

Abstract

The invention discloses a configuration parameter downloading device and a downloading method of configurable control modules on a passenger car body. A vehicle-mounted integrated information module and a plurality of configurable control modules are orderly and electrically connected in series to form a one-way configuration chain the vehicle-mounted integrated information module of which is positioned at the starting end thereof; the configurable control module positioned at the front end of the configuration chain is firstly triggered and waken; only when a certain configurable control module is triggered and waken, and stores a parameter configuration file, a trigger signal can be transferred to the subsequent configurable control modules; and the configurable control modules orderly download the parameter configuration file according to the sequence in the configuration chain until all the configurable control modules store the parameter configuration file. By using the techniqueof combining hardware and software, on the premise of not increasing the cost and body wiring complexity, the invention solves the problems of failure of addressing and priority confliction of CAN bus when the plurality of the configurable control modules download and store the parameter configuration file through the CAN bus.

Description

technical field [0001] The invention relates to a parameter configuration file downloading device and a downloading method of a configurable control module in a CAN bus-based configurable bus body control system. Background technique [0002] With the wide application of electronic technology in passenger cars, the functions and quantity of electrical equipment on the passenger car body are increasing day by day, and the traditional cable relay control method has been difficult to meet the needs of the control of the passenger car body. In recent years, body network control technology has been gradually applied in passenger cars. Due to the long body, most passenger cars adopt the distributed bus body control system based on CAN bus. The distributed bus body control system based on CAN bus generally consists of a vehicle integrated information module and several special control modules. The vehicle integrated information module realizes the information exchange between the...

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Problems solved by technology

[0008] The purpose of the present invention is to provide a parameter configuration file downloading device and a downloading method of a configurable control module in a CAN bus-based configurable bus body control system, to solve the problem of the problem of the configurable control module without increasing the cost and the complexity of the wiring of the vehicle body. In the CAN bus configurable bus body control system, several configurable control modules encountered the problem of unaddressable and CAN bus priority conflicts encountered in downloading and saving parameter configuration files through the CAN bus

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