Electric control diesel engine starter overheating protection control method

Abstract

The invention discloses an electric control diesel engine starter overheating protection control method. The electric control diesel engine starter overheating protection control method comprises the following steps of working condition identification, specifically, identifying an environment working condition through MAP; and MAP output, specifically, performing interpolation calculation according to the engine coolant temperature and the ambient atmospheric pressure to obtain the drag-and-turn limit time and the interval limit time; wherein a starter is used for monitoring and recording the drag-and-turn time of the previous starting between two adjacent starting, setting the starting interval time according to the drag-and-turn time, and when the drag-and-turn time of the starter is greater than the drag-and-turn limiting time of the current environment working condition, starting interval time protection is activated. Therefore, according to the electric control diesel engine starter overheating protection control method, control over the running time of the starter under different working conditions can be achieved, the phenomenon of heating or tooth breaking caused by long-time rotation of the starter is avoided, and therefore the starter is protected.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to an electronically controlled diesel engine starter overheat protection control method. Background technique [0002] In the current use of diesel engines, in the control of the starter relay, only the following protection functions are involved in the protection strategy: [0003] 1. Maximum drag time limit based on coolant temperature [0004] 2. The time protection of the minimum speed of dragging based on the engine speed [0005] 3. Based on the engine speed, the relay disconnects the maximum speed limit [0006] 4. Protection limit of base speed [0007] It can be seen that the current diesel engine air starter relay control protection method does not have a protection strategy based on the coolant temperature and atmospheric pressure to control the starting interval time, which leads to the existing starter motors that will cause heat or gears when they are running for a...

AI Technical Summary

Problems solved by technology

[0005] 3. Based on the engine speed, the relay disconnects the maximum speed limit

[0006] 4. Protection limit of base speed

[0007] It can be seen that the current diesel engine air starter relay control protection method does not have a protection strategy based on the coolant temperature and atmospheric pressure to control the starting interval time, which leads to the existing starter motors that will cause heat or gears when they are running for a long time. Phenomenon, which leads to the decline of starter life

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