Milling machine engine thermal management system
A thermal management system and engine technology, applied in the direction of machine/engine, engine components, engine cooling, etc., can solve the problems of electrical control system damage, reduce cooling system efficiency, etc., to prolong life, reduce warm-up time, and reduce fuel consumption and the effect of emissions
Inactive Publication Date: 2015-12-02
柳工无锡路面机械有限公司
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The other is to use the air suction method, the fan will suck the air outside the machine into the radiator as the cooling medium, and cool the radiator; although this method introduces colder air outside the machine, it reduces the air intake of the radiator. The cooling effect of the radiator is guaranteed, but the high-temperature air heated by the radiator is introduced into the machine, which reheats the engine system and other parts of the machine, especially the hydraulic system, which has a very adverse effect. The efficiency of the cooling system is greatly reduced; at the same time, the internal high temperature of the machine generated by this method has a fatal damage effect on the electrical control system
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[0030] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0031] Such as figure 1 As shown, a milling machine engine thermal management system of the present invention includes an ECU (i.e. an electronic ECU), and a rotational speed sensor, which is connected to the input end of the ECU for detecting the rotational speed of the diesel engine, and the detection data passed to the ECU;
[0032] Throttle position sensor, which is connected with the input end of the ECU, is used to detect the throttle position of the diesel engine, and transmits the detection data to the ECU;
[0033] A water temperature sensor, which is connected to the input end of the ECU, is used to detect the temperature of the water in and out of the wa...
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The present invention discloses a milling machine engine thermal management system. The system comprises an electronic control unit (ECU); a rotating speed sensor used for detecting rotating speed of a diesel engine; an accelerator position sensor used for detecting an accelerator position of the diesel engine; a water temperature sensor used for detecting temperature of inlet and outlet water of a water tank of the diesel engine; a hydraulic oil temperature sensor used for detecting inlet and outlet temperature of a hydraulic oil heat exchanger; an intercooler temperature sensor used for detecting inlet and outlet air temperature of an intercooler; an engine room temperature sensor used for detecting temperature of an engine room; and a pressure sensor used for detecting inlet and outlet air pressure of the intercooler of the diesel engine and the atmospheric pressure. According to the system provided by the present invention, heating sources and cooling systems of a power device are isolated from each other and do not interfere; the main components are all electrically controlled, and through calibration of the electrical control strategy, water temperature rises rapidly to a target temperature after the engine is started, the engine warming time is reduced, the service life of the engine is prolonged, and oil consumption and discharge of the engine are lowered.
Description
technical field [0001] The invention relates to a thermal management system, in particular to a thermal management system of a road milling machine power device. Background technique [0002] The road milling machine, like other fully hydraulic engineering machinery with diesel power, is equipped with a power unit consisting of an engine system and a hydraulic system. The engine system includes the engine and its accessories, such as radiators, fan systems, mufflers, air pipes, cooling water pipes, and exhaust pipes; the hydraulic system includes hydraulic pumps, hydraulic motors, hydraulic valves, and hydraulic oil tanks. During the working process of such a power plant, a large amount of heat will be generated due to the thermal conversion efficiency of the engine and the mechanical efficiency and volumetric efficiency of the hydraulic system, which will exist in the engine system and the hydraulic system. Appropriate heat makes the system work within a certain temperatur...
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IPC IPC(8): F01P7/00
Inventor 贾康乐
Owner 柳工无锡路面机械有限公司