Marking device general for vehicle electronic control unit

Abstract

The invention relates to a universal calibration device for protecting a vehicle electron control unit and relates to the control technology of vehicle electron. The calibration device which is designed by the invention and used as the middle layer of an upper computer calibration system and an electronic control unit is independent of the electric control unit, and comprises the calibration SCM and the double-interface RAM of an expanded CAN communication interface; the calibration SCM follows a CCP protocol and is communicated with the upper computer calibration system by the expanded CAN communication interface; calibration parameters and measuring parameters are stored in the double-interface RAM; the calibration SCM and the electric control unit share the parameters in the double-interface RAM. The calibration device has commonality which can be very conveniently integrated with the vehicle electron control unit and the upper computer calibration software (such as CANape, INCA), overcomes the defects of large developing working load and poor commonality of the prior art and improves the efficiency for the work of developing and calibration.

Description

technical field [0001] The invention relates to automobile electronic control technology, in particular to a product used in the calibration of automobile electronic control units. Background technique [0002] For modern automobiles, comfort, efficiency and safety are quite dependent on the application of various electronic control systems. There are more and more components with electronic control units (Electronic Control Unit, ECU), such as powertrain control, power management, Anti-lock braking systems, traction control, etc. are typical applications of electronic control units. At the same time, with the improvement of automobile fuel consumption requirements and emission standards, in order to meet the new standards, new sensors, actuators, and advanced control algorithms are continuously applied to the development of new electronic control units, such as: [0003] Variable structure supercharger, multi-pulse control, variable structure intake chamber, dual fuel syst...

AI Technical Summary

Problems solved by technology

[0011] like figure 1 The schematic diagram of the current typical calibration system structure is shown. The calibration device and the electronic control unit are integrated, and the calibration parts are integrated in the electronic control unit. There is a strong coupling between the calibration system and the electronic control unit. This strong coupling Due to the uniqueness, ECU developers must develop their own calibration part codes for each ECU during the ECU development process, which makes it increasingly difficult for ECU development models, calibration techniques and tools to meet the needs of electronic control units. Fast, efficient and reliable development requirements of the control unit

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