Disclosed is a method of controlling an operation mode of a fuel cell in a fuel cell vehicle wherein, (a) when a driver-demanded torque is lower than a first torque, and a current state of charge (SOC) in a battery is higher than a first SOC, the operation mode of the fuel cell is converted to a stop mode, and (b) when the driver-demanded torque is higher than a second torque, or the current SOC in the battery is lower than a second SOC, the operation mode is converted to a start mode, wherein the second torque is higher than the first torque and the second SOC is lower than the first SOC.

Method of controlling operation mode of fuel cell in fuel cell vehicle

The invention relates to a device (12) for controlling the temperature of a battery (10) on board a motor vehicle, the device (12) comprising an air-conditioning circuit (14) in which an air-conditioning fluid circulates, and comprising an evaporator (18) which allows the battery (10) to be cooled, a cooling circuit (16) in which a coolant flows, the cooling circuit (16) comprising a first source (44) of heat that is capable of heating the coolant, and a main radiator (46) for cooling the coolant which is capable of being short-circuited, the cooling circuit (16) comprising a battery radiator (54) which makes it possible to directly transfer the heat carried by the coolant to the battery (10).

Device for controlling the temperature of a battery, comprising an evaporator for cooling the battery and a radiator for heating the battery

The invention provides an automobile waste heat using method which comprises the following steps that (1) after an automobile is started, part of heat in waste gas discharged by an automobile internal combustion engine is conducted to a hot face of a first thermoelectric power generation piece set, meanwhile, a cold face of the first thermoelectric power generation piece set is cooled continuously, and the first thermoelectric power generation piece set generates power; (2) when automobile water temperature exceeds 80 DEG C, part of heat in cooling water of the automobile internal combustion engine is conducted to a hot face of a second thermoelectric power generation piece set, meanwhile, a cold face of the second thermoelectric power generation piece set is cooled continuously, and the second thermoelectric power generation piece set generates power; and (3) a storage battery of the automobile is charged through currents generated in the step (1) and the currents generated in the step (2) via a voltage adaptor. According to the automobile waste heat using method, heat generated during internal combustion engine working can be converted into electricity energy to charge the automobile storage battery with an existing automobile generator being replaced, the fuel using efficiency of the internal combustion engine can be improved, the load of the internal combustion engine can be lowered, and all of output power of the internal combustion engine can be used for driving the automobile to walk.

Automobile waste heat using method

An outdoor unit of an air conditioner is provided. The outdoor unit may include a compressor for compressing a refrigerant; a condenser for condensing the refrigerant discharged from the compressor; a control device for containing electronic parts to control the outdoor unit; and a cooling unit in contact with a heat generating part of the electronic parts to cool the heating unit, wherein the cooling unit comprises a first heat radiation member installed to be in contact with the heat generating part; a refrigerant pipe extending through the first heat radiation member and enabling a refrigerant to flow through the refrigerant pipe; and a second heat radiation member coupled with the first heat radiation member for heat transfer and installed to be in contact with outdoor air flowing into the control device.

Outdoor unit of air conditioner and control device for the outdoor unit

The present invention relates to a battery cell temperature control system which selectively increases or decreases the temperature of a battery cell, and a control method thereof. The battery cell temperature control system comprises: a plate-type heat exchange unit which is placed to be in contact with a battery cell; a cooling plate which is placed on one side of the battery cell to exchange heats with the plate-type heat exchange unit, and has a cooling flow channel having a cooling fluid moved therein; a heating plate which is placed on the other side of the battery cell to exchange heats with the plate-type heat exchange unit, and has a heating flow channel having a heating fluid moved therein; a radiator which is connected to the cooling flow channel to supply a cooled first fluid to the cooling flow channel; a heater which is connected to the heating plate to supply a heated second fluid to the heating flow channel; and a control unit which compares a measuring temperature of the battery cell measured by a temperature sensor installed to be connected to the battery cell with a preset setting temperature of the battery cell to control a first mode and a second mode to be selected.

System for controlling temperature of battery cell and battery pack

A heating and cooling apparatus of a vehicle using electricity is provided to enhance the heating efficiency using wasted heat of a fuel battery for heating the inside of a vehicle. A heating and cooling apparatus of a vehicle using electricity is comprised of a compressor(110), an evaporator with cooler(180), an internal heat exchanger(120), an expansion valve(130), an evaporator(140), a first heater(150), a refrigerant circulation line(160), and a controller(170). The compressor compresses refrigerant to the high temperature and high pressure with the electricity. The cooler emits the heat of high temperature and pressure refrigerant with the operation of the cooling fan. The internal heat exchanger cools the refrigerant passing through cooler. The expansion valve decompresses the refrigerant cooled with the internal heat exchanger pressure. The evaporator cools the air evaporating refrigerant and passes through the duct of vehicle. The first heater heats up the air with the refrigerant of high pressure and high temperature. The refrigerant circulation line supplies the refrigerant of high pressure and high temperature through the cooler, internal heat exchanger, expansion valve, evaporator to the cooled state to the internal heat exchanger. The refrigerant circulation line supplies the refrigerant of high pressure and high temperature to the state cooled by the operation of switching units(162,163,165,166) after the first heater, internal heat exchanger, expansion valve, cooler to the internal heat exchanger.

Heating and cooling apparatus of an electric car

PURPOSE: A thermoelectric generation system for waste heat recovery of a vehicle is provided to efficiently transfer heat through a heat pipe to a thermoelectric element because a thermoelectric module is installed outside an exhaust pipe. CONSTITUTION: A thermoelectric generation system for waste heat recovery of a vehicle comprises a heat pipe(1). The heat pipe includes a heat absorption part(5) which is formed inside an exhaust pipe(50) to absorb the heat of exhaust gas and a radiation part(6) which radiates heat from a high-temperature portion of a thermoelectric element(2).

Generating system by heat transmission for withdrawing exhaust heat of automobile

The present invention relates to a battery module cooling device comprising: a warm-up block which is configured to cool while supplying electric energy, and includes a battery support for supporting battery cells and heat pipes, fixing grooves formed at an upper end portion of the battery support so that the heat pipes can be inserted, and through grooves formed on side surfaces of the battery support to discharge a part of heat energy generated from the battery cells; the battery cells which are disposed at the upper end portion of the battery support, are formed by coupling positive plates to negative plates, and can supply 20 V of electric energy; heat pipes which are inserted and fixed to the fixing grooves, are configured to cool the heat energy formed in the battery cells, and include first insertion panels formed at the lower end portion thereof and second insertion panel formed at the upper end portion thereof; and heat radiating fins which are formed in a zigzag pattern between the upper end portion of the battery cells and heat pipes to smoothly cool the heat energy formed in the heat pipes Accordingly, the battery module cooling device of the present invention is able to maximize heat transfer efficiency

The battery module cooling units

PURPOSE: A hydrogen recirculation system of a fuel cell is provided to reduce the back flow of water to an air electrode as an outlet by enlarging the pressure difference between the inlet and the outlet of a stack by installing two ejectors. CONSTITUTION: A hydrogen recirculation system of a fuel cell comprises a second supply line(2) and first and second ejectors(5,6). The second supply line is branched from a first supply line(1) of a hydrogen tank. The first and second ejectors respectively supply hydrogen provided from the first and second supply lines to a stack(52) through high speed spray. The first and second ejectors are connected to first and second recirculation lines to increase the pressure difference between the inlet and the outlet of a stack by consecutively re-circulating water and hydrogen in an air electrode of the stack.

System recirculating hydrogen of a fuel cell

The present invention relates to a battery module heating device comprising: a warm-up block which is configured to supply electric energy while supplying heat energy to battery cells, and includes sheath heaters formed in first, third, and fifth grooves among a plurality of grooves formed at a lower end portion thereof to supply heat energy, and coolant lines formed in second and fourth grooves of the grooves formed at the lower end portion thereof to heat the batteries using waste heat of engine coolant of a plug-in hybrid electric vehicle (PHEV); the battery cells which are disposed at the upper end portion of the warm-up block, are formed by coupling positive plates to negative plates, and can generate 2.0 V of electric energy; and heat pipes which are formed between the battery cells to evenly distribute the heat energy generated from the sheath heaters to the battery cells, and include first insertion panels formed at the lower end portion thereof and second insertion panel formed at the upper end portion thereof. Accordingly, the battery module warming device of the present invention is able to maximize heat transfer efficiency.

The battery module Heating units

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