Diesel engine visualization calibration method and device

Abstract

The invention discloses a diesel engine visual calibration method and device. The method comprises the following steps that: control logic for setting start-up calibration, idle speed calibration, transition work condition calibration, catalyst calibration, intake air calibration, pre-injection calibration and OBD calibration is stored into a calibration computer; an electronic calibration system completes corresponding calibration steps according to calibration instructions outputted by the calibration computer; the electronic calibration system returns calibration data to the calibration computer; the calibration computer outputs the calibration data to a display system; and the display system displays the calibrated real-time data on a display screen. With the diesel engine visual calibration method and device of the invention adopted, the calibration data can be displayed in real time on the display system which can be seen by a calibrator as long as the calibrator raises his or her head, and a calibration process is visualized, and calibration efficiency can be improved.

Description

technical field [0001] The invention relates to the field of diesel engine calibration, in particular to a diesel engine visual calibration method and device. Background technique [0002] The electronic control unit (Electronic Control Unit, ECU) is the electronic device control computer of the car. The ECU calculates, processes, and judges the information input by various external sensors according to the programs and data in its memory, and then outputs instructions to achieve control. The various components / actuators of the car work together normally. The diesel vehicle engine ECU detects and controls various electronic components of the diesel vehicle engine and external sensors in real time, so that the engine and peripheral electronic components operate in the best state. In general, before the diesel vehicle leaves the factory, the program and data of the internal ECU have been flashed and calibrated to ensure that its working condition is in the best state. Howeve...

AI Technical Summary

Problems solved by technology

The traditional calibration method is complicated in process, low in efficiency, and low in visualization. In the current calibration process, the following three methods can be used to obtain vehicle operating condition information: 1. The driver judges the vehicle operating condition by observing the instrument pointer and scale line ;This method requires the driver to look at the instrument while driving, which has great potential safety hazards, and there is a large deviation between the parameters read by the instrument and the actual operating parameters of the vehicle, and the accuracy of the calibration test is not high

Use the electronic calibration system, calibration software INCA and calibration computer to read the operating parameters in the vehicle ECU in real time, and the passengers in the vehicle will tell the driver the required information; In the process of transmitting information between drivers, the operating parameters of the vehicle will also change continuously. This method has high labor costs and delays in information transmission, resulting in low efficiency of calibration tests.

Images