6results about "Signal processing for cooling apparatus" patented technology

A control device of a vehicle and a method of estimating a temperature of a component of an internal combustion engine. The control device of the vehicle executes: a base temperature calculating process of calculating a base temperature of a component of an internal combustion engine; a correction value calculating process of calculating a correction value; a queue reflecting process of causing the correction value to reflect a tendency that the component is less likely to be cooled in a case where the temperature-estimating vehicle, in which the component whose temperature is estimated is mounted, is one of a plurality of vehicles constituting a queue than in a case where the temperature-estimating vehicle is a following vehicle; a last reflecting process of causing the correction value to reflect a tendency that the component is more likely to be cooled in a case where the temperature-estimating vehicle is a last vehicle than in a case where the temperature-estimating vehicle is not the last vehicle; and a component temperature estimating process of correcting the base temperature using the correction value.

Disclosed is an engine cooling system, which includes: a water temperature controller assembly (WTCA) coupled to an engine of a vehicle to control a flow of a coolant discharged from the engine; and a first temperature sensor. The first temperature sensor may be configured to: measure one or more temperatures of the coolant discharged from the engine; and generate one or more signals indicating the one or more measured temperatures of the coolant. The engine cooling system may further include a processor configured to: receive the one or more signals; determine a highest coolant temperature measured during a first time period; determine, based on the highest coolant temperature measured during the first time period, whether an amount of the coolant is below a threshold coolant level; and send, based on a determination that the amount of the coolant is below the threshold coolant level, a signal to the vehicle.

The present disclosure provides a cooling system for a hybrid vehicle having an engine and electrical components. The system includes a cooling module having a cooling fan; an engine cooling device having a first line connected to the cooling module and the engine, a first coolant flowing through the first line; an intercooler; an electrical component cooling device having a water pump and a second line connected to the cooling module, the electrical components, and the water pump, a second coolant flowing through the second line; and a controller for controlling operation of the cooling fan and the water pump. The intercooler circulates the second coolant and is disposed in series with the electrical components. Based on a flow direction of the second coolant, the electrical component cooling device includes a bypass line connected to the second line downstream of the cooling module and the second line upstream of the intercooler.

A cooling system is for a hybrid vehicle with an engine and an electrical component. The system includes: a cooling module having a cooling fan: an engine cooling apparatus having a first line connected to the cooling module and the engine and through which a first coolant flows; an intercooler ; an electrical component cooling apparatus having a water pump and a second line connected to the cooling module, the electrical component, and the water pump and through which a second coolant flows; and a controller to control operation of the cooling fan and the water pump. The intercooler circulates the second coolant and is disposed in series with the electrical component. The electrical component cooling apparatus includes a bypass line connected to the second line downstream of the cooling module and to the second line upstream of the intercooler, based on a flow direction of the second coolant.

A method for predicting a temperature of for an engine cooling system, includes: obtaining a first temperature of the engine cooling system at an initial moment, operating parameters of an engine, and a target moment, in which the engine cooling system comprises at least cooling water, an inner cylinder wall, and an outer cylinder wall; determining a number of unit time steps required from the initial moment to the target moment according to a preset unit time step; and obtaining a target temperature of the engine cooling system at the target moment by performing a set number of iterative calculations according to the first temperature and the operating parameters of the engine.

The invention relates to the technical field of locomotive heat dissipation, in particular to a locomotive cooling fan control system and a control method thereof.The system comprises an internal combustion engine, a radiator, a cooling fan unit, an inverter, a locomotive microcomputer, an environment temperature sensor, a water temperature sensor and a diesel engine rotating speed sensor. The cooling fan unit provides cooling air which flows through the radiator to take away heat generated by the internal combustion engine. And the inverter is electrically connected with the cooling fan unit and provides a variable-voltage variable-frequency three-phase alternating-current power supply for the cooling fan unit. The locomotive microcomputer is electrically connected with the environment temperature sensor, the water temperature sensor, the diesel engine rotating speed sensor and the inverter, collects input parameters needed by control of the cooling fan and conducts information interaction with the inverter. Meanwhile, a cooling fan start-stop and rotating speed control calculation method is provided, a locomotive microcomputer judges whether the cooling fan is started or stopped according to the rotating speed of an internal combustion engine, the environment temperature, the cooling water temperature and the state of an inverter, and the target rotating speed of the cooling fan is calculated.