Abstract:
A thermal management system (1) includes a five-way valve (180) configured to switch a first circuit mode in which a chiller (142) and a battery (163) are thermally connected and a second circuit mode in which the chiller (142) and an LT radiator (122) are thermally connected, and an ECU (500) configured to control a compressor (151) based on a chiller temperature and a radiator temperature. The ECU (500) is configured to, in a case where switching between the first circuit mode and the second circuit mode is performed by controlling the five-way valve (180) during a heating operation of a refrigeration cycle (150), control the compressor (151) to reduce a temperature difference between the chiller temperature and the radiator temperature prior to the switching.
Abstract:
Es wird ein Verfahren zur Leckageerkennung in einem Klimasystem (10) beschrieben, bei dem eine Raumtemperatur des zu klimatisierenden Raumes (18) vor dem Kältemittelverdampfer (15) an einer Lufteingangsseite (41), eine Kältemitteleingangstemperatur am Kältemitteleingang (16) eines Kältemittelverdampfers (15) und eine Kältemittelausgangstemperatur an einem Kältemittelausgang (17) des Kältemittelverdampfers (15) erfasst werden. Darauf aufbauend wird eine Ausgangsdifferenztemperatur als Differenz der Raumtemperatur und der Kältemittelausgangstemperatur sowie eine Verdampferdifferenztemperatur als Differenz der Kältemittelausgangstemperatur und der Kältemitteleingangstemperatur berechnet. Einer Leckage wird erkannt, wenn die Ausgangsdifferenztemperatur einen festgelegten Wert unterschreitet und/oder wenn die Verdampferdifferenztemperatur einen festgelegten Wert überschreitet.
Abstract:
Es wird eine Flüssigkeitsauffang- und Verdampfungsvorrichtung 8 vorgeschlagen zur Verwendung zwischen einem Kühlwasserregelventil 4 eines Fahrzeugs und einer Aktuator-Vorrichtung 6 zur Aktuierung des Ventils. Die Flüssigkeitsauffang- und Verdampfungsvorrichtung 8 umfasst einen Abscheidungsbehälter 9 zum Auffangen und Verdamp fen von aus dem Kühlwasserregelventil 4 austretenden Flüssigkeitstropfen. Der Abscheidungsbehälter 9 weist dabei eine Anbindung 22 an das Ventil 4, eine Anbindung 26 an die Aktuator-Vorrichtung 6 sowie eine Vielzahl von Öffnungen 20 auf, welche einerseits die Flüssigkeitstropfen am Austreten aus dem Behälter 9 hindern und andererseits eine Tropfenverdampfung aufgrund einer auf den Behälter 9 wirkenden Abwärme ermöglichen. Die Erfindung betrifft ferner eine Ventileinheit mit einer solchen Flüssigkeitsauffang- und Verdampfungsvorrichtung sowie ein Fahrzeug mit einer solchen Ventileinheit.
Abstract:
The present disclosure relates to a thermal dissipation system of an electric vehicle that includes: a heat exchanger arranged at the front part of the electric vehicle for providing heating or cooling to an air conditioning system of the electric vehicle; a first heat sink (220) and a second heat sink (230), which are respectively arranged at the two sides of the front part of the heat exchanger (210); a number of rotatable and adjustable air deflectors (121, 131) for changing the flow direction of the air (250) flowing through the heat dissipation system. Temperature sensors are included within the thermal dissipation system for sensing the working temperatures and the environmental temperatures of a battery pack and a motor of the electric vehicle. Opening and closing states of the air deflectors are adjusted in accordance with data provided by the temperature sensors.
Abstract:
A vehicle-mounted heat utilization device (10) includes: an engine fluid circuit (12) in which fluid circulates to cool an engine (18); a heater fluid circuit (14) that passes through an exhaust heat recovery apparatus (26) that recovers a heat of exhaust gas (28) and a vehicle-interior heat exchanger (24) for radiating a heat of the fluid into a vehicle interior; a cooling-heating fluid circuit (16) that passes through a radiating heat exchanger (34), the radiating heat exchanger being included in a refrigeration cycle (30) in which refrigerant is compressed by a compressor (32) and the compressed refrigerant is expanded; a first switching unit (52) that is configured to selectively switch a state of the engine fluid circuit (12) and the heater fluid circuit (14) between a connected and a disconnected state; a second switching unit (54) that is configured to selectively switch a state of the heater fluid circuit (14) and the cooling-heating fluid circuit (16) between a connected state and a disconnected state.
Abstract:
Systems and methods for providing an improved strategy for controlling a variable speed water pump in a vehicle. In some embodiments, more than one water pump speed function is calculated based on values obtained from vehicle sensors, and a controller chooses among the water pump speed function results to set a water pump speed. In some embodiments, the water pump speed is increased when driveline torque is greater than a threshold amount for an amount of time that varies based on the driveline torque. In some embodiments, ambient temperature is considered while determining whether the water pump should provide full coolant flow to an auxiliary coolant loop of a trailer.
Abstract:
The present invention provides a radical polymerization method that enables synthesis, at a high conversion rate, of polymers having a relatively uniform molecular weight and is applicable to various monomers that are generally available, and an apparatus used for the method. The present invention relates to a method for producing a polymerization product by continuously or intermittently circulating, within a flow path of the radical polymerization apparatus, a reaction solution containing a monomer and a radical polymerization initiator. Heating of the reaction solution that has flowed into a heating-initiation unit to a predetermined temperature is performed in a condition in which the radical polymerization initiator, contained in a volume obtained when the reaction solution that has flowed into the heating-initiation unit is temporally sliced, is cleaved all at once (a condition in which the radical polymerization initiator contained in the volume is heated to the predetermined temperature simultaneously across the radial direction of a cross section of the flow path). The present invention relates to a radical polymerization reaction apparatus including a heating medium production unit 10, a heating medium-reaction solution mixing unit 20, a cooling unit 30, and a recovery unit 40 for a reaction mixture, all of which are communicatively connected by the flow path. The present invention relates to a radical polymerization reaction apparatus including a heating reaction unit 60, a cooling unit 70, and a recovery unit 80 for a reaction mixture, wherein all of which are communicatively connected by the flow path.