Method for testing durability of idling start-stop system of whole vehicle

Abstract

The invention discloses a method for testing the durability of a whole vehicle idling start-stop system. The method comprises the following steps: S1, preparing a sample vehicle for testing; s2, checking whether the idling start-stop function of the sample vehicle is normal or not, if so, entering the next step, and otherwise, stopping the test; s3, idling start and stop are triggered for three times according to the standard action, then normal driving is conducted for 60 s or above, circulation is conducted in sequence till the test is finished, and the total idling start and stop times are reasonably determined according to the expected life of a sample vehicle idling start and stop system; and S4, checking whether the idling start-stop function of the sample vehicle is normal or not again, if so, judging that the durability of the whole vehicle idling start-stop system meets the requirement, and otherwise, judging that the durability does not meet the requirement. According to the method, the function stability and the durability and reliability of system hardware of the idling start-stop system in the actual use process can be quickly verified, the risk of quality problems after automobiles appear on the market is reduced, the product competitiveness is improved, and the after-sale cost caused by the idling start-stop quality problems is saved.

Description

Technical field [0001] The present invention relates to a durability test of auto parts, and specifically, the durability test method of the vehicle idle start stop system. Background technique [0002] The idle start stop system is an automatically determined whether or not the engine operation is temporarily stopped during idle parking. When the driver needs to drive, the engine can reach the engine exhaust emissions, reduce the whole Car fuel consumption, improve the control system of the target of the engine life. The system is different in various scenes and specific control strategies, different automakers are different. [0003] After the after-sales survey, the vehicle in which the idle start-stop system appeared under certain conditions or for a longer period of time, some vehicles will have overheating, the battery is too high, the battery is too high, and the battery capacity is severe. The battery's electricity sensor accuracy is not accurate, and the idle start stop ...

AI Technical Summary

Problems solved by technology

[0003] After after-sales investigation, vehicles equipped with this idle start-stop system appear under certain working conditions or after being used for a long period of time, some vehicles will experience problems such as overheating of the starter, excessive temperature of the battery after multiple starts and stops, and serious attenuation of battery capacity , The accuracy of the battery power sensor is inaccurate, etc., causing the idle start-stop system to stop working or intermittently not working, and the user complains and needs to be repaired

[0004] At present, domestic car companies pay less attention to the relevant verification of idling start and stop on the whole vehicle. A mature verification method has not been formed, and the judgment of the test results is also lacking.

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