Starting auxiliary control method based on oil path system exhaust

Abstract

The invention relates to the technical field of car control, in particular to a starting auxiliary control method based on oil path system exhaust. An oil path system exhaust control marking positioncapable of being resetting to the second state from the first state under the control of an oil path system exhaust function reset instruction is stored in an engine controller, and an oil path systemexhaust control instruction is sent; whether the oil path system exhaust marking position is in the first state or not is detected; if not, the oil path system air emptying action is executed; if yes, the oil path system exhaust function reset instruction is sent, and the oil path system exhaust control marking position is reset to be in the second state, and the oil path system air emptying action is executed; after the duration time of execution of the oil path system air emptying action reaches the set time length t, the oil path system exhaust control marking position is switched to be inthe first state. A vehicle is integrated with an oil path exhaust function resetting function, and triggering is achieved through a diagnostic apparatus; and when a vehicle oil tank, an oil pipe andan oil spraying nozzle are subjected to after-sale maintaining and replacing, the oil path system exhaust function can be reset.

Description

technical field [0001] The invention relates to the technical field of automobile control, in particular to a starting assist control method based on the exhaust of an oil circuit system. Background technique [0002] At the OEM, the vehicle (or the trial vehicle, or after the fuel tank, fuel pipe, and fuel injector are repaired and replaced) is started for the first time, the fuel pipe (from the fuel tank to the fuel rail) is filled with air, and the fuel injector starts to spew out Air, difficult to start the engine. [0003] The patent "Automobile Fuel Injection Control System and Method" CN201210138149.7 discloses that the vehicle factory exhausts the off-line vehicle through the fuel injection control system technology integrated in the engine control system, so as to make the vehicle start smoothly for the first time. It can be executed once, but after the vehicle leaves the factory, it cannot be exhausted again. Since the existing vehicles can only perform the only ...

AI Technical Summary

Problems solved by technology

[0002] In the vehicle factory, the vehicle (or trial-produced vehicle, or after repairing and replacing the fuel tank, fuel pipe, and fuel injector) is started for the first time, the fuel pipe (from the fuel tank to the fuel rail) is filled with air, and the fuel injector starts to spray air, difficult engine start

[0003] The patent "Automobile Fuel Injection Control System and Method" CN201210138149.7 discloses that the vehicle factory exhausts the off-line vehicles through the fuel injection control system technology integrated in the engine control system, so that the first start of the vehicle can be carried out smoothly. It can be performed once, but after the vehicle leaves the factory, it cannot be exhausted again

Since the existing vehicles can only perform the exhaust function once when the vehicle is off the assembly line, the air accumulated after the maintenance of the vehicle oil circuit system cannot be discharged again. Due to the confidentiality of the software, the maintenance shop can only operate by inviting the engine controller supplier, and the cost is extremely high

And this operation process requires the supplier to change the software configuration of the engine controller, which is time-consuming and labor-intensive, and the process is quite troublesome

[0004] And because the existing vehicles do not have the exhaust function of the off-line oil circuit system, the air cannot be removed normally, and the engine needs to be started repeatedly many times before the fuel in the fuel tank can be pumped into the oil rail, and then the engine can be started

It is time-consuming and labor-intensive for the supplier to modify the software configuration of the engine controller, usually forcing the engine to start

However, when the vehicle is started repeatedly, insufficient combustion leads to serious carbon deposits in the spark plug, which affects the life of the spark plug and the reliability of low-temperature cold start.

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