Water temperature control method, device, thermal management system and storage medium

A control method and water temperature technology, which are applied in the control of coolant flow, engine cooling, and engine components, etc., can solve the problems of inability to control the speed of water pumps and fans, inability to achieve precise water temperature regulation, and poor regulation effects, and achieve improved performance. Longevity, reduced wear and tear, flexible control effects
CN111005799BActive Publication Date: 2021-01-19FAW JIEFANG AUTOMOTIVE CO
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
FAW JIEFANG AUTOMOTIVE CO
Publication Date
2021-01-19

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Abstract

The invention discloses a water temperature control method and device, a whole vehicle heat management system and a storage medium. The water temperature control method comprises the steps that the water temperature of a diesel engine is monitored, and whether the water temperature is higher than a set temperature threshold value or not is judged; if yes, a target temperature and a pre-establishedstate space equation of the water temperature of the diesel engine are obtained; according to the target temperature and the state space equation, control variables of the water temperature are determined, wherein the control variables comprise the fan rotating speed, the electric control water pump rotating speed and the thermostat opening degree; and the water temperature of the diesel engine is controlled according to the control variables. According to the technical scheme, the water temperature is monitored in real time, the state space equation of the water temperature is established, the corresponding relation between the water temperature and the control variables is determined, the values of the control variables reaching the target temperature are determined according to the corresponding relation, the values of the control variables are optimized online, the water temperature control precision is improved, and the energy consumption of the system is reduced.
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Description

technical field

[0001] Embodiments of the present invention relate to the technical field of temperature control, and in particular to a water temperature control method, device, thermal management system, and storage medium. Background technique

[0002] As the running time of the automobile diesel engine increases, its own temperature will also increase. When the temperature exceeds the working range, it will lead to an increase in engine power consumption and reduce the life of related components. Therefore, temperature control is crucial for diesel engines.

[0003] The traditional diesel engine temperature control mainly relies on the wax-type thermostat to adjust the large and small cycles. It can only control the opening of the thermostat, but cannot control the speed of the water pump and fan. There are few controllable parameters, the adjustment effect is not good, and it cannot achieve accurate Water temperature regulation. Contents of the invention

[0004] Th...

Claims

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