Control method of engine temperature control module

Abstract

The invention discloses a control method of an engine temperature control module. The control method comprises the steps that a whole vehicle is powered on, a system is initialized, whether a water temperature sensor and the temperature control module are normal or not is checked, and if the water temperature sensor and the temperature control module are normal, the temperature control module enters a working mode; the temperature control module enters the working mode, the current water temperature is started to be confirmed, if the current water temperature is lower than a preset warming-upthreshold value, the temperature control module enters a rapid warming-up mode, and otherwise, the temperature control module enters a normal working mode; in the normal working mode of the temperature control module, the optimal water temperature and the safe water temperature are obtained in a look-up table manner according to the engine load and the rotating speed; whether the current windwardcondition is enough or not is determined according to the current vehicle speed, and the target water temperature is determined by utilizing the optimal water temperature or the safe water temperatureby referring to the current windward condition; and ball valve corner control is conducted according to the target water temperature. According to the control method, active flow adjustment can be achieved, the whole vehicle risk and branch function requirements are considered at the same time, the water temperature of the whole vehicle can be optimized through the method under any working condition, and accurate heat management is achieved.

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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