Protective control system and method of vehicle starting engine

Abstract

The invention discloses a protective control system and method of a vehicle starting engine. The system is provided with a rotating speed sensor for monitoring the rotating speed of a starter; a monitored rotating speed signal is transmitted to an engine control module; an ignition switch and a starter control module are connected in series to a coil end loop of a starting relay; the engine control module is used for controlling the switch-on/off of the coil end loop of the starting relay according to the rotating speed of the engine; and a normally-open contact at the control end of the starting relay accesses a relay loop of the starter, and is used for controlling the switch-on/off of the relay loop. Due to the adoption of the system and the method, the technical blank of starter protection is filled up; and moreover, a circuit has a simple structure and is easy to realize and popularize, the entire vehicle performance is enhanced, the damage rate of the starter is lowered, the working service life of the starter is prolonged, and the maintenance cost on a vehicle is lowered for a user.

Description

technical field [0001] The invention relates to a vehicle starting protection control system and a control method thereof. Background technique [0002] According to the after-sales repair data of vehicles, among the failures of the starter, the overload ablation of the starter accounts for a large proportion, about 30% to 50%. The reason for the failure is mainly due to improper operation of the user, mainly including the delay of the key return after starting, which causes the starter to be dragged backwards, or the wrong operation of turning the key when the engine is idling to damage the starter gear, and the low ambient temperature in winter to start. If the time is too long, the starter will be overloaded and ablated. Moreover, the vehicle starts overrunning the problem of abnormal noise, that is, the starter gear does not return to its position in time, and the anti-trag starter rotates at a high speed after the engine is started, resulting in abnormal noise, which w...

AI Technical Summary

Problems solved by technology

The cause of the failure is mainly due to the improper operation of the user. The main reason is that the key is returned late after starting, causing the starter to be dragged backwards, or the engine is idling and the key is turned by mistake to damage the starter gear, and the ambient temperature is low in winter. If the time is too long, etc., the starter will be overloaded and ablated

Moreover, the problem of abnormal noise when the vehicle is started, that is, the starter gear does not return in time, and the anti-drag starter rotates at a high speed after the engine starts, causing abnormal noise, which will affect the comfort of the vehicle and cause user dissatisfaction

In view of the above problems, the current automobile manufacturers do not have a good solution

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