A thermal management system for a vehicle is disclosed, wherein the vehicle comprises an occupant compartment and a propulsion system configured to provide motive power to the vehicle. The system comprises a propulsion coolant circuit configured to cool at least a portion of the propulsion system, a heating circuit configured to heat the occupant compartment, and a heat pump circuit comprising a first evaporator in the propulsion coolant circuit and a condenser in the heating circuit. The propulsion coolant circuit comprises a connecting conduit connecting the propulsion coolant circuit to the heating circuit at a position upstream of the condenser, and a first valve configured to control flow of coolant through the connecting conduit. The present disclosure further relates to a powertrain for a vehicle, as well as a vehicle.

An engine (12) drives a variable capacity-type hydraulic pump (16), discharged hydraulic oil is selectively supplied to a cooling fan (19) and a hoist cylinder (11) in accordance with switching of a selection valve (17), thereby controlling the same on the basis of each target value. A pump discharge pressure (Pp) of the hydraulic oil discharged from the hydraulic pump (16) and a motor supply pressure (Pm) of the hydraulic oil supplied to a hydraulic motor (18) via the selection valve (17) are detected by sensors (27, 28) and are compared with pressure determination values stored in advance as a pump discharge pressure (Pp) and an actuator supply pressure (Pm) generated when the target value is achieved. Presence/absence of abnormality in the hydraulic actuator control device (15) is determined on the basis of a result of the comparison, and when abnormality is determined to have occurred, control is performed to minimize the capacity of the hydraulic pump (16).

A cooling apparatus of a vehicle driving system for driving a vehicle according to the invention activates a heat pump to cool a hybrid system by cooling medium and flows an engine cooling water in an engine water circulation passage through a condenser to cool the cooling medium by the engine cooling water at the condenser when an engine water circulation condition is satisfied. The engine water circulation condition is a condition that a heat pump activation condition is satisfied, and an engine cooling condition is not satisfied. The heat pump activation condition is a condition that a process of cooling the hybrid system by the cooling medium of the heat pump is requested. The engine cooling condition is a condition that a process of cooling an internal combustion engine by the engine cooling water is requested.

Embodiments of an upper body heat exchanger for a vehicle are described. In one embodiment, an upper body heat exchanger includes a first portion comprising a plurality of fins disposed on a first surface. The upper body heat exchanger also includes a second portion comprising a plurality of heat transfer fluid passages disposed on a second surface of the upper body heat exchanger. The second portion is disposed beneath the first portion. The upper body heat exchanger is mounted on the vehicle such that the first surface of the first portion of the upper body heat exchanger is exposed. The plurality of heat transfer fluid passages are configured to transfer heat from heated fluid flowing through the plurality of heat transfer fluid passages to airflows interacting with the plurality of fins as the vehicle is moving.

Disclosed are an apparatus and method for controlling an oil pump for a vehicle which may control the speed of the oil pump. The apparatus includes a controller configured to control the speed of the oil pump based on the temperature information of a motor and oil and the speed and torque information of the motor, and, when the vehicle is being driven, the controller confirms whether or not a motor or oil temperature is higher than or equal to a first set temperature, controls the speed of the oil pump to a maximum speed value when the motor or oil temperature is higher than or equal to the first set temperature, and calculates a control speed value and controls the speed of the oil pump to the calculated control speed value when the motor or oil temperature is lower than the first set temperature.

A cooling system for a motor vehicle has an electrical energy storage device for driving the motor vehicle; a chiller through which a refrigeration circuit and, fluidically separated therefrom, a main cooling circuit can flow; one or more control elements; at least one heat source, and one or more ambient air coolers. In a first mode, the control elements form the main cooling circuit such that the main cooling circuit can flow through the chiller, the energy storage device and none of the ambient air coolers. In a second mode, the control elements form the main cooling circuit such that the main cooling circuit can flow through the chiller, the energy storage device and at least one of the ambient air coolers. In a third mode, the control elements form the main cooling circuit such that the main cooling circuit can flow through the chiller, at least one of the ambient air coolers and the heat source.

A cooling system is disclosed for controlling the temperature of a battery within a temperature interval, the system comprising a chiller and a chiller line arranged in heat exchange with said chiller, a heat source and a high temperature line arranged in heat exchange with said heat source, a battery line arranged in heat exchange with the battery, a pump arranged to convey a cooling fluid in at least one of said lines, a condenser and a refrigeration circuit arranged in heat exchange with said condenser, wherein a working medium is arranged to, in operation, circulate in said refrigeration circuit, wherein a valve is arranged to selectively connect the chiller line into heat exchange with the battery line so as to provide cooling of the battery, and a valve is arranged to selectively connect the high temperature line for heat exchange with the battery line to heat the battery.

A drive device for a motor vehicle, having at least one drive unit and one coolant circuit for controlling the temperature of the at least one drive unit, in which at least one coolant pump is arranged in the coolant circuit for circulating an aqueous coolant in the coolant circuit. It is provided in this case that the coolant pump is designed as a screw spindle pump.

The present invention relates to a cooling system comprising a first cooling circuit cooling a first object, a second cooling circuit cooling a second object, an expansion tank, a first deaeration line directing coolant and air from the first cooling circuit to the expansion tank, and a second deaeration line directing coolant and air from the second cooling circuit to the expansion tank. The cooling system comprises further a deaeration valve configured to control the flow through the first deaeration line, a single expansion tank outlet line configured to direct all coolant in the expansion tank to the second cooling circuit and a connection line configured to direct coolant from the second cooling circuit to the first cooling circuit.

A cooling device for cooling an electrically driven or driveable motor vehicle, having a first heat exchanger and a second heat exchanger, having an air-guiding channel which connects the first heat exchanger and the second heat exchanger and which has two diametrically oppositely situated passage openings which are reversibly closable by means of a first air guide and by means of a second air guide, and having a cooler fan which is arranged downstream of the second heat exchanger in terms of flow.