Control method for automatic drainage of diesel filter

Abstract

The invention discloses a control method for automatic drainage of a diesel filter. The control method comprises the following steps that a controller receives water level height information in the diesel filter in real time and judges whether the water level height information reaches an alarm value or not; when the water height information reaches the alarm value, the controller sends an alarm signal to a driver, and the driver presses down a safe water drainage confirmation switch; after the driver presses the safe water drainage confirmation switch, the controller judges whether a vehicle is in a safe state or not; when the vehicle is in the safe state, the controller controls a water drain valve in the diesel filter to automatically drain water; and when the water level height information in the diesel filter reaches the target value, the controller controls the water drain valve to be closed. Thus, according to the control method for automatic water drainage of the diesel filter, the driver can achieve automatic water drainage in a cockpit, and when water drainage is about to be completed, the water drain valve is automatically closed immediately, so that a drop of diesel is not wasted, and potential safety hazards are avoided.

Description

technical field [0001] The invention relates to the technical field of diesel oil filters, in particular to a control method for automatically draining water from a diesel oil filter. Background technique [0002] During the normal operation of the vehicle engine, its controller will detect the status of water accumulation in the diesel filter according to the information fed back by the water alarm sensor in the diesel filter, and send the status information of the accumulation of water to the Vehicle dashboard. When the accumulated water reaches the alarm value, the water alarm warning light on the instrument panel of the vehicle will always be on to remind the driver to release the water. If the driver does not perform the water discharge operation, the vehicle will immediately limit the torque output of the engine in order to ensure the service life of the engine, so that the vehicle cannot run normally. Therefore, in order to ensure that the vehicle can run normally, ...

AI Technical Summary

Problems solved by technology

[0005] 1. When draining water, the driver manually drains the water according to the position of the diesel filter in the engine compartment (some vehicles even have to shake the cab of the vehicle), which is very inconvenient and the driver’s experience is not good;

[0006] 2. You need to wait until the diesel oil flows out before you can tell that the water in the diesel filter has been drained, which will not only cause waste of diesel oil, but also bring safety hazards

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