Control method of engine temperature control module

Abstract

A control method for an engine temperature control module, comprising: powering on the whole vehicle, system initialization, checking whether the water temperature sensor and the temperature control module are normal, if the water temperature sensor and the temperature control module are normal, the temperature control module enters the working mode; the temperature control module Enter the working mode and start to confirm the current water temperature. If the current water temperature is lower than the preset warm-up threshold, the temperature control module will enter the fast warm-up mode, otherwise the temperature control module will enter the normal working mode; in the normal working mode of the temperature control module, According to the engine load and speed look-up table to obtain the optimal water temperature and safe water temperature; determine whether the current windward is sufficient according to the current vehicle speed, refer to the current windward situation, and use the optimal water temperature or safe water temperature to determine the target water temperature; control the ball valve rotation angle according to the target water temperature. The present invention can realize active flow adjustment, and simultaneously take into account the risk of the whole vehicle and the functional requirements of the branch road, so that the water temperature of the whole vehicle can be optimized under any working condition through this method, and precise thermal management can be realized.

Description

technical field [0001] The invention relates to an engine water cooling system, in particular to a control method for an engine temperature control module. Background technique [0002] At present, the commonly used engine cooling system on the market consists of a mechanical water pump and a thermostat. The physical structure of the thermostat is based on the wax bag. When the water temperature is low, the wax bag is solid. The thermostat valve closes the branch of the coolant leading to the radiator under the action of the spring. When the water temperature is high, the wax bag melts into a liquid. , the volume increases accordingly, and the thermostat valve is pushed to open the radiator branch to cool down. This structure determines that the engine cooling system can only switch between two states of large circulation (radiator participates) and small circulation (radiator does not participate), and cannot control more branches. However, the branches such as the warm a...

AI Technical Summary

Problems solved by technology

[0006] The electronic thermostat controls the opening timing of the thermostat in the form of electric heating, but it still cannot solve the problem of slow response to wax bag melting

In order to avoid the problem that the thermostat works in the transient process for a long time due to slow response, the electronic thermostat generally only divides the engine operating conditions into several simple areas in control, and cannot be very finely tuned for each operating condition. optimization

In the warm-up phase, it is the same as the traditional thermostat, unable to accelerate the warm-up process

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