ECU (electronic control unit) data flashing device

Abstract

The invention provides an ECU data flashing device which belongs to the technical field of automobiles and can be used for solving the problem that the existing ECU data flashing device is low in efficiency and the components of the existing ECU data flashing device are easy to damage. The ECU data flashing device provided by the invention comprises a control terminal, a power supply and a power switch, wherein the control terminal is connected with an ECU and can carry out data flashing on the ECU; the power supply is used for supplying power for the ECU; the power switch is connected between the power supply and the ECU; and a buffer and an indicator are also connected between the power supply and the ECU, the indicator is used for reminding operating personnel of the power-up conditionof the electronic control unit, the indicator is connected in series with the buffer and then connected in parallel with the power switch, and the buffer can carry out slow electric discharge after the power switch is on or off. The ECU data flashing device provided by the invention has the advantages of easiness in operation and high operating efficiency.

Description

Technical field [0001] The invention belongs to the technical field of automobiles, and relates to a data flashing device, in particular to a data flashing device of an electronic control unit ECU. Background technique [0002] The electronic control unit ECU, also known as "driving computer" or "vehicle computer", is a kind of microcomputer controller dedicated to automobiles. Its function is to calculate, process and judge the information input by various sensors according to the programs and data in its memory. , And then output the instruction. It is an integral part of the car and plays a very important role in the driving and use of the car. [0003] However, when the engine is mass-produced, the ECU hardware provided by the EFI system supplier is a bare metal with no data or programs written. If the ECU hardware is to be used, the operator needs to refresh the ECU hardware one by one. At present, the device for flashing data to the electronic control unit ECU generally inc...

AI Technical Summary

Problems solved by technology

[0004] However, when the computer shows that the data flashing is completed, the electronic control unit ECU has a delay in data storage. If the switch is turned off at this time and the power supply to the ECU is stopped, the flashing data may be lost and repeated work is required, reducing improved work efficiency

Moreover, the current data flashing device does not have suitable protection measures. If the electronic control unit ECU is directly connected to the power supply through the switch, the operator may induce a large current during the switch operation and cause damage to the electronic control unit ECU. reduce its service life

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