48V light hybrid vehicle offline detection system and method

Abstract

A 48V light hybrid vehicle offline detection system and method is provided. The system comprises a scanner, a server, an optoelectronic isolator, a vehicle communication switching system and a host computer; the vehicle communication switching system comprises a main control module, a K interface circuit, a CAN interface circuit and a power module, the power module supplies power for the main control module, the main control module is connected with one end of the optoelectronic isolator, and the K interface circuit and the CAN interface circuit are connected to a vehicle-mounted network through an OBD diagnostic line; the vehicle-mounted network is connected to an engine control module, a motor controller module, a DC converter controller module and a battery management system module; andthe other end of the optoelectronic isolator is connected with the host computer, the scanner is connected with the host computer through the RS232 interface, and the host computer is connected withthe server and a management end computer. The system satisfies the development requirements of the 48V light hybrid vehicle, solves the detection compatibility problem, satisfies the production temporequirement, can convert and recognize the vehicle state, and is comprehensive, accurate and reliable in detection.

Description

technical field [0001] The invention relates to the technical field of vehicle off-line detection, in particular to a 48V light hybrid vehicle off-line detection system and method. Background technique [0002] With the development of the automobile industry, the number of automobiles continues to increase. The automobile industry is facing challenges in many aspects such as energy and the environment. With the increasingly stringent regulations on emissions and fuel consumption, all passenger car companies must meet the average fuel consumption of 5L by 2020. All domestic OEMs are actively looking for solutions to meet the requirements of / 100km. Simply improving the fuel efficiency of the engine is basically difficult to meet these standards. Vehicle hybridization and pure electrification are the best technical routes. [0003] In 2011, Audi, BMW, Daimler, Porsche, and Volkswagen jointly launched a 48V system to meet the growing demand for vehicle loads, and also to meet t...

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Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a 48V light hybrid vehicle off-line detection system and method for the detection problems faced by the existing 48V light hybrid power system, to meet the development needs of 48V light hybrid power vehicles, and to solve the detection problem. Compatibility issues, meet production cycle requirements, convertible and identify vehicle status, comprehensive, accurate and reliable detection

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