18results about "Control devices for cooling apparatus" patented technology

Vehicle (10), comprising: a controller (40) programmed to operate the engine (14) and an electric machine (20) to supply energy to a low-voltage battery (26) and a high-voltage battery (28) at respective rates based on a target engine torque and a temperature of the engine (14) or the electric machine (20) when an engine (14) is operating in response to a remote start request and in response to exhaust gas sensor data indicating closed-loop engine operation.

A vehicle preconditioning system (110) is disclosed. The vehicle preconditioning system (110) is capable of automatically preconditioning engine coolant in a work vehicle, the vehicle preconditioning system comprising: a coolant heating device (52) coupled to an engine (16) of the work vehicle via a supply line (50) and a return line (54), wherein engine coolant circulates between the coolant heating device (52) and the engine (16) via the lines (50, 54);and a coolant heater start control device (350), comprising a start module (360) in operational communication with the coolant heater (52), a processor device (352), a persistent storage device (354) in operational communication with the processor device (352), and vehicle preconditioning logic stored in the persistent storage device (354), wherein the processor device (352) is capable of executing the vehicle preconditioning logic to automatically control the coolant heater (52) to initiate the heating of the engine coolant. A method with such a vehicle preconditioning system (110) is further disclosed.

A controller may cause, in a lubrication oil warm-up mode of a transmission, the transmission to operate in a stall mode that transfers heat to transmission oil for the transmission. The transmission oil may be diverted to a lubrication oil heater to heat the lubrication oil using the transmission oil. The controller may cause the transmission to disengage the stall mode and to engage a park mode, to pause the lubrication oil warm-up mode. The controller may cause the transmission to operate in the stall mode, to resume the lubrication oil warm-up mode, after the pause duration.

The application discloses an engine piston oil cooling nozzle device and a control method thereof. The device comprises an ECU controller, a device body and a nozzle mounted on the device body. An oil inlet is formed in the device body, and an oil cavity and a control chamber are arranged independently in the device body. The oil inlet is communicated with the oil cavity. A valve rod assembly and a flow regulating device are respectively arranged in the oil cavity and the control chamber. The valve rod assembly is communicated with the oil cavity and the control chamber. A flow sensor is mounted on the nozzle. The ECU controller sends a signal to the flow regulating device to control the valve rod assembly to control the oil flow into the nozzle according to the signal sent by the flow sensor. The speed and torque of the engine are detected by the ECU controller to judge the working condition of the engine. According to the judged working condition, a corresponding cooling mode is selected. According to the corresponding cooling mode, a signal of a corresponding current size is sent to the flow regulating device. The flow regulating device controls the flow area between the valve core and the nozzle, so that the oil injection flow can be adjusted according to different working conditions.

A coolant heating system includes: a coolant heater including: a housing including: an inlet configured to receive coolant; and an outlet configured to output coolant; an electrically resistive heating element that is disposed within the housing and that is configured to generate heat when power is applied to the heating element; and a temperature sensor configured to measure a temperature of coolant within the housing; and a heater control module configured to: receive the temperature from the temperature sensor; selectively control application of power to the heating element based on maintaining the temperature at or above a predetermined temperature; selectively detect the presence of a condition based on the temperature; and when the presence of the condition is detected, disconnect the heating element from power.

A vehicle preconditioning system automatically preconditions engine coolant in a work vehicle for operation of the work vehicle at a predetermined desired ready time. The system includes a coolant heating device wherein engine coolant is circulated between the coolant heating device and the engine via the conduits. A coolant temperature sensor determines a temperature of the engine coolant, and a minimum required lead time is determined for modifying a temperature of the engine coolant in the work vehicle from an initial temperature to a desired minimum temperature. The heating device is automatically controlled to initiate heating the engine coolant at a heater start time prior to the desired ready time by the minimum required lead time sufficient to heat the engine coolant to the desired minimum temperature for the work vehicle to be available for the operation at the predetermined desired ready time.

The present application discloses a thermal management system for a vehicle comprising an internal combustion engine having an intake duct and an exhaust duct and at least one electric motor driven by a battery, the thermal management system comprising: a first coolant circuit designed as a high-temperature circuit in which a first coolant circuit is connected to the internal combustion engine, and a second coolant circuit designed as a high-temperature circuit in which a second coolant circuit is connected to the internal combustion engine; coolant flows through the internal combustion engine, the electric pressurizing air compressor arranged in the air inlet pipeline, the internal cabin heating device and the high-temperature radiator. A second coolant circuit designed as a low-temperature circuit in which a coolant flow flows through the charge air cooler and the low-temperature radiator provided in the intake duct; a third coolant circuit designed as a battery cooling circuit in which a coolant flow flows through the battery and the at least one indirect evaporator; the control device is provided with a plurality of pumps and control valves for driving and controlling the flow of liquid in each circuit, and the high-temperature circuit can be connected with the low-temperature circuit and the battery cooling circuit at at least two points, respectively, and the connection can be carried out reversibly by adjusting the control valves. A portion of the second coolant circuit and a portion of the third coolant circuit may be combined with the first coolant circuit.

A vehicle and a thermal management control method and device therefor, and a storage medium are provided. The vehicle includes an engine and a thermal management system. The thermal management system includes a water pump. The engine and the water pump are connected to form a first cooling circulation. The thermal management control method includes: when a current temperature of the engine is less than or equal to a preset temperature threshold, a total engine power is greater than or equal to a preset power threshold, and a current vehicle speed is less than or equal to a preset vehicle speed threshold, controlling the water pump to periodically switch between a start state and a stop state. In the thermal management control method provided in the the present disclosure, when the engine is in a warm-up mode of high power and low vehicle speed, by controlling the water pump to periodically switch between a start state and a stop state, the local overheat of the engine is avoided and the thermal management system is allowed to be in a minimum power consumption state.

Whining noise is prevented by simple fan control. A swivel working machine (1) includes a radiator fan (94a) (first cooling fan), an oil cooler fan (97a) (second cooling fan), a temperature detector (TD) to detect a temperature of a to-be-cooled target, a storage and / or a memory (121) to store first data defining a correspondence relationship between the temperature detected by the temperature detector (TD) and a first target rotational speed which is a target rotational speed of the radiator fan (94a), and second data defining a correspondence relationship between the temperature detected by the temperature detector (TD) and a second target rotational speed which is a target rotational speed of the oil cooler fan (97a), and a controller (120) to control a rotational speed of the radiator fan (94a) to the first target rotational speed corresponding to the temperature detected by the temperature detector (TD) and control a rotational speed of the oil cooler fan (97a) to the second target rotational speed corresponding to the temperature detected by the temperature detector (TD), and the second target rotational speed is set such that a difference between the second target rotational speed and the first target rotational speed is equal to or larger than a predetermined difference irrespective of the temperature detected by the temperature detector (TD).

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.

The application discloses an engine coolant temperature control method and device, the method comprises the following steps: first-order low-pass filtering processing is carried out on the actual coolant temperature to obtain the filtered actual coolant temperature; it is judged whether the actual coolant temperature switching condition is satisfied or not, if yes, the actual temperature adopts the filtered actual coolant temperature, otherwise, the actual temperature continues to adopt the actual coolant temperature; in the two temperature switching processes, the absolute value of the change rate does not exceed the preset change rate value; the target coolant temperature is obtained as the original target temperature, dynamic optimization is carried out to obtain the final target temperature, and closed-loop PID control is carried out on the engine coolant temperature according to the final target temperature and the actual temperature; including: original target temperature reset, original target temperature transition, original target temperature decrement and other conditions, and the priority is lower and lower. The application solves the problems of low closed-loop control precision and poor robustness when the target coolant temperature changes greatly.

A method (100) of operating a cooling system (1, 1') of a vehicle (2) is disclosed. The cooling system (1, 1') comprises a first and a second coolant circuit (6, 8). The first coolant circuit (6) comprises a first coolant pump (10), a conduit section (12) connected to a pump inlet (10') of the first coolant pump (10), a primer conduit (18), a filling point (75), and a conduit portion (p6) located between the filling point (75) and the pump inlet (10'), wherein the conduit portion (p6) is arranged below the pump inlet (10'). The method (100) comprises the steps of initiating (110) a supply of coolant from the second coolant circuit (8) to the conduit section (12) via the primer conduit (18) during standstill of the first coolant pump (10), and then initiating (120) operation of the first coolant pump (10). The present disclosure further relates to a computer program, a computer-readable medium (200), a control arrangement (21), a cooling system (1, 1'), and a vehicle (2).

Thermal management system for a vehicle comprising an internal combustion engine with an intake manifold and an exhaust manifold, and at least one battery-powered electric motor, and the thermal management system a first coolant circuit, which is designed as a high-temperature circuit, in which the internal combustion engine, an electric charge air compressor arranged in the intake tract, an interior heating device and a high-temperature radiator are supplied with coolant, a second coolant circuit, designed as a low-temperature circuit, in which a charge air cooler located in the intake tract and a low-temperature radiator are supplied with coolant, a third coolant circuit, designed as a battery cooling circuit, in which the battery and at least one indirect evaporator are supplied with coolant, and includes a control device, wherein a number of pumps and controllable valves are arranged to drive and regulate the fluid flow in the circuits, and The high-temperature circuit can be connected to the low-temperature circuit and the battery cooling circuit at at least two points each, the connections being reversible by adjusting control valves, and thus parts of the second and third coolant circuits can be combined with the first coolant circuit. as well as a vehicle and a method for controlling the temperatures of the vehicle's equipment.

Methods and systems are provided for a thermal management system. In one example, a thermal management system for a vehicle comprising an internal combustion engine comprising an intake tract and an exhaust tract, the vehicle further comprising at least one electric motor driven by a battery, the thermal management system including a first coolant circuit coupled to each of the internal combustion engine, an electric compressor, an electric charge-air compressor arranged in the intake tract, an interior compartment heating device, and a high-temperature radiator, a second coolant circuit coupled to each of a charge-air cooler arranged in the intake tract and a low-temperature radiator, a third coolant circuit coupled to each of the battery and at least one indirect condenser.

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.

The application aims at solving the problem that high compression ratio, Miller cycle or Atkinson cycle engine is easy to generate knock, which leads to power decline and engine thermal efficiency decline, and provides an electronic water pump compensation control method, device, system, vehicle, medium and equipment when engine knock occurs. The method comprises the following steps: under the current engine working condition, it is judged whether the electronic water pump knock compensation function is started due to engine knock; if the electronic water pump knock compensation function is started due to engine knock, the initial value and the compensation value of the operating parameter of the electronic water pump under the current engine working condition are determined; and the operating parameter of the electronic water pump is started based on the compensation value and the initial value.

A method of operating a cooling system of a vehicle is disclosed. The cooling system comprises a first and a second coolant circuit. The first coolant circuit comprises a first coolant pump, a conduit section connected to a pump inlet of the first coolant pump, a primer conduit, a filling point, and a conduit portion located between the filling point and the pump inlet, wherein the conduit portion is arranged below the pump inlet. The method comprises the steps of initiating a supply of coolant from the second coolant circuit to the conduit section via the primer conduit during standstill of the first coolant pump, and then initiating operation of the first coolant pump. The present disclosure further relates to a computer program, a computer-readable medium, a control arrangement, a cooling system, and a vehicle.

Method and device for detecting the operation of an engine-independent auxiliary heater and for diagnosing a coolant temperature sensor of a motor vehicle. The invention relates to a method for detecting the operation of an engine-independent auxiliary heater in a cooling system (2) with several coolant circuits (K1, K2, K3) in a vehicle system with an auxiliary heater (6), comprising the following steps: - Upon or after activation of the vehicle system for a cold start, opening (S2) of a shut-off valve (9) between a first coolant circuit (K1) with the auxiliary heater (6) and a second coolant circuit (K2) with the coolant temperature sensor (12) and activation of a coolant pump (8), so that coolant from the first coolant circuit (K1) flows around the coolant temperature sensor (12);- Acquiring (S3) a time course of a temperature reading from the coolant temperature sensor (12) for a predetermined time period from the time the vehicle system is activated; - Determining (S4) a gradient of the temperature reading; - Evaluating (S5, S6) the gradient of the temperature reading using a threshold comparison to determine whether the auxiliary heater (6) was activated before the cold start.