• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Summary The present invention relates to an arrangement and method for controlling the temperature of an electrical energy storage (2) in a vehicle (1). The arrangement comprises a conduit circuit (5) comprising a valve means (7, 7a, 16, 16a) and at least two parallel conduits (5b, Sc, 5k) arranged in a position immediately upstream (let the electrical energy storage (2). the parallel conduits (5b) comprise a heating device (8) and that another of the parallel conduits (5c) comprises a cooling device (9). (5b) comprising the heating device (8) at the operating events when the electrical energy storage (2) has a temperature below a lower spruce value (ti) and passing the medium through the parallel editing (5c) comprising the cooling device (9) at the operating instances when the the electrical energy storage (2) has a temperature aver spruce value (t2).
    公开号:SE537559C2
    申请号:SE1351512
    申请日:2013-12-17
    公开日:2015-06-16
    发明作者:Artiom Lamadrid；Ola Hall
    申请人:Scania Cv Ab；
    IPC主号:
    专利说明:

    BACKGROUND AND BACKGROUND OF THE INVENTION The present invention relates to an arrangement and method for controlling the temperature of an electrical energy storage in a vehicle according to the preambles of claims 1 and 17.
    Hybrid vehicles powered by electricity in combination with flags other forms of industry are equipped with an electrical energy storage for storing electrical energy and control equipment to regulate the flow of electrical energy between the electrical energy storage and an electrical machine that alternately works as a motor and generator.
    The electrical energy storage and control equipment inevitably provide some heating during operation. In order to be able to operate the electrical energy storage and control equipment in an appropriate manner, they should not be heated to an excessively high temperature. The electrical energy storage bar, for example, should not be heated above a maximum acceptable temperature which for a certain type of electrical energy storage can be of the order of 40 ° C. However, the control equipment can be heated to a slightly higher temperature. The electrical energy storage and control equipment thus had to be cooled during operation.
    With some types of electrical energy storage, loading is not possible at all at excessively low temperatures. If the load occurs at too low temperatures, it can also lead to permanent damage to the electrical energy storage. The problem of low temperatures in the energy storage arises mainly during cold starts and when the vehicle is driven in a cold environment. It is therefore important that the electrical energy storage does not withstand a low temperature during operation. 1 US 2010/0100266 discloses a thermal control system which enables control of the temperature of an electrical energy storage and control equipment in a vehicle. The control system comprises, in some of the embodiments in the document, a wiring circuit with a circulating coolant which first comes into heat-transferring contact with the electrical energy storage and then with the control equipment. A thermostat directs cooled coolant via a radiator or non-cooled liquid via a bypass line to the electrical energy storage. The thermostat senses the temperature of the coolant before it is led to the electrical energy storage. The cooling system further comprises a heating device and a cooling device which are arranged at a distance from the electrical energy storage.
    This control system has a complicated structure and the thermostat seems to lead cooling water with a substantially constant temperature to the electrical energy storage.
    SUMMARY OF THE INVENTION The object of the present invention is to provide a relatively simple arrangement which regulates the temperature of an electrical energy storage in a vehicle on a reliable salt so that it essentially always has a suitable temperature during operation.
    This object is achieved with the arrangement of the kind mentioned in the introduction, which can be characterized by the features stated in the characterizing part of claim 1.
    The arrangement thus comprises a heating device and a cooling device which are arranged in their respective parallel lines in a position immediately upstream of the electrical energy storage. By upstream of the electrical energy storage is meant that the liquid medium does not come into contact with any other heat transfer components as it is led from the heating device or the cooling device to the electrical energy storage. With the aid of the valve means, the liquid-medium which is passed through one of the parallel lines can obtain a heating when the electric energy storage has a lower temperature than a lower spruce value and a cooling when the electric energy storage has a higher temperature than an upper spruce value. Thus, the electrical energy storage can obtain a heat transfer in contact with the circulating medium which results in it essentially always maintaining a suitable temperature during operation. Most types of batteries have a suitable operating temperature Mom after a certain temperature range. In some types of batteries, aging increases dramatically at temperatures above 40-45 ° C. Some types of batteries cannot withstand temperatures below 0 ° C. The suitable temperature range advantageously has a good maximum temperature and a good one. In this case, the valve means leads the liquid to the parallel line containing the cooling device when the electrical energy storage has a higher temperature than the upper spruce value of the temperature range and to the parallel line with the heating device when the electrical energy storage has a lower temperature than the lower spruce value of the temperature range. The arrangement defined above has a simple construction, a fatal component and a reliable function.
    According to an embodiment of the present invention, the valve means is adapted to guide the liquid medium through a specific parallel line in which there is no heat exchange at operating times as the electrical energy storage has a higher temperature than the lower spruce and a lower temperature than the upper spruce. When the electrical energy storage has a temperature within the suitable temperature range, there is usually no reason to provide the flake heat effect of the liquid medium. Said specific parallel conduit may be one of the parallel conduits comprising the heating device or the cooling device, the heating device or the cooling device being adapted to be switched off when the liquid medium is passed through the conduit when the electrical energy storage has a higher temperature than the lower spruce value and a store temperature at the upper spruce threshold. In this case, one of the parallel lines comprising the heating device or the cooling device is thus used to lead the liquid medium to the electrical energy storage. In this case only two parallel lines are required and the valve means can be constituted by a two-way valve. Alternatively, said specific parallel wire may be a separate parallel wire. In this case three parallel lines are required and the valve means can in this case be constituted by a three-way valve.
    According to another embodiment of the present invention, the liquid medium is adapted to be conducted in heat transfer contact with at least one component, which is adapted to regulate the flow of electrical energy to and from the electrical energy storage, after all having been in heat transfer contact with the electrical energy storage. The vehicle may include control equipment in the form of components such as DC converters and inverters to conduct electrical energy between the electrical energy storage and an electrical machine and other electrically driven components such as electric AC compressor, electric control servo and electric air compressor. The control equipment can also supply charge to a low-voltage battery in the vehicle. The control equipment requires cooling during operation. However, the control equipment may have a higher temperature than the electrical energy storage. The DC converter and inverter are suitably cooled in series according to the electrical energy storage in an order so that the component that requires the lowest temperature is cooled before the component that can have a higher temperature.
    According to another embodiment of the present invention, the arrangement is adapted to estimate the temperature of the electrical energy storage by means of the temperature of the liquid medium in a line which receives the liquid medium after it has left the electrical energy storage. The liquid medium is advantageously conducted in a heat transfer contact with the electrical energy storage so that the temperature of the liquid medium substantially corresponds to the temperature of the electrical energy storage when it leaves the electrical energy storage. Estimating the temperature of the electrical energy storage using the temperature of the liquid medium in a position immediately downstream of the electrical energy storage is simple while indicating the temperature of the electrical energy storage with good accuracy DC converters and inverters obtain a heating dependent on the electrical load. As the load varies frequently in a vehicle under different operating conditions, it is black to predict how much heat these components generate. It is therefore not possible to relate the cooling demand or heating demand of the electrical energy storage to the temperature of the liquid medium in an arbitrary position in the line system and in particular not in a position downstream of said control components.
    According to an embodiment of the invention, the valve means is a thermostat. Thermostats are cheap components that occupy a small space while having a reliable function. The thermostat may comprise a wax body that changes phase at a control temperature corresponding to the upper spruce or the lower spruce. Thus, the thermostat can lead the liquid medium to different parallel lines depending on whether the electrical energy storage has a temperature that is higher or lower than the said spruce. In this case, the thermostat is arranged in a position adjacent to the parallel wires arranged upstream of the electrical energy storage.
    That the thermostat senses the temperature of the coolant in this position is not appropriate as it is not representative of the temperature of the electrical energy storage. The line circuit therefore advantageously comprises a pilot line which leads a part of the liquid medium from the line, which receives the liquid medium after it has left the electrical energy storage, to the thermostat. By arranging a pilot line which leads a part of the liquid medium to the thermostat from a position immediately 4 downstream of the electrical energy storage, the thermostat obtains a good indication of the temperature of the electrical energy storage and whether it needs to be heated or cooled. The conduit circuit may comprise a conduit which conducts the liquid medium from the thermostat to an expansion tank. The line circuit may be included in a separate system or form part of a conventional cooling system in a vehicle. The conduit, which conducts the liquid medium from the thermostat to an expansion tank, may be a vent conduit. Thus, this wire has a double function, which reduces the number of wires in the wire circuit.
    According to an alternative embodiment of the invention, the valve means is a solenoid valve.
    A solenoid valve is more expensive than a thermostat but it may alternatively be used to realize the present invention. The arrangement may in this case comprise a sensor adapted to directly or indirectly sense the temperature of the electrical energy storage and a control unit adapted to receive information from said sensor and to control the solenoid valve so that it guides the liquid-shaped medium through one of said parallel lines depending on the temperature of the electrical energy storage. The solenoid valve can be a two-way valve or a three-way valve.
    According to an alternative embodiment of the invention, the heating device is an electric heating element. An electric heating element can be applied in a relatively simple manner in one of the parallel lines. It can also be switched off in a simple way by a suitably placed switch. Alternatively, the heating device may be a heat exchanger which receives a hot medium which may be hot coolant, charge air or exhaust gases. In this case, the flow of the hot medium can be shut off with the aid of a suitably placed valve. The cooling device may comprise a radiator where the liquid medium is cooled by air. Air at ambient temperature is an effective coolant. Life usually has a temperature that is lower than the highest suitable temperature for the electrical energy storage. Alternatively, a heat exchanger with a cold medium can be used as cold coolant or the refrigerant in an evaporator of an AC or other compressor cooling system in the vehicle.
    The initially mentioned object is also achieved with the method according to claim 17.
    BRIEF DESCRIPTION OF THE DRAWINGS In the following, by way of example, preferred embodiments of the invention are described with reference to the accompanying drawings, in which: Fig. 1 shows an arrangement for controlling the temperature of an electrical energy storage according to a first embodiment of the invention, Fig. 2 shows an arrangement for controlling the temperature of an electrical energy storage according to a second embodiment of the invention, Fig. 3 shows an arrangement for regulating the temperature of an electrical energy storage according to a third embodiment of the invention and Fig. 4 shows an arrangement for regulating the temperature of an electrical energy storage. electrical energy storage according to a guard embodiment of the invention.
    DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS OF THE INVENTION Fig. 1 shows a schematic vehicle 1 which may be a hybrid vehicle powered by electricity in combination with any other form of industry. The vehicle 1 can alternatively be a purely electrically driven vehicle. The vehicle 1 is equipped with an electrical energy storage 2 which can be an accumulator with any number of galvanic cells. The electrical energy storage 2 is advantageously a high voltage battery. The electrical energy storage 2 is connected to an electrical machine (not shown) which can alternately work as a motor and generator. Control equipment in the form of components such as DC converters 3 and inverters 4 are required to conduct electrical energy between the electrical energy storage 2 and the electrical machine during operation of the vehicle 1. Batteries 2 have an internal resistance and it is heated & armed up during operation. Most types of batteries 2 have a suitable operating temperature within a relatively narrow temperature range which, for example, can be in the range 15-30 °. The performance of an electrical energy storage is significantly reduced if it has too high or too low a temperature. An electrical energy storage 2 can also receive permanent damage and an accelerated aging if it is operated at an inappropriate temperature. An electrical energy storage 2 thus needs to be cooled under certain operating conditions and heated during other operating conditions in order for it to exhibit a desired performance.
    The DC converter 3 and the inverter 4 are also heated during operation depending on how hard they are loaded. They should not have a temperature above an upper spruce value for them to function at a desired level. However, they can be heated to a higher temperature than the electrical energy storage 2. The DC converter 3 and the inverter 4 thus also need to be cooled during operation.
    Fig. 1 shows an arrangement adapted to maintain a suitable operating temperature of the electrical energy storage 2. The arrangement comprises a line circuit 5 and a pump 6 circulating a liquid medium in the line circuit 3 during operation of the vehicle 1. The liquid medium may have the same composition as the coolant in a conventional cooling system in a vehicle. The pump 6 directs the liquid medium, via an initial line 5a, to a valve means in the form of a thermostat 7. The thermostat 7 is adapted to lead the liquid medium to a first parallel line 5b which contains a heating device 8 or to a second parallel line 5c which contains a cooling device 9. The heating device 8 is in this case an electric heating unit.
    The heating device 8 can alternatively be a heat exchanger which is flowed through by a hot medium which, for example, can be hot cooling water, charge air or exhaust gases. The cooling device 9 is in this case a heat exchanger in the form of a radiator which is purged by air which may have the ambient temperature. The cooling device 9 can alternatively be a heat exchanger which is passed through by cold cooling water or an evaporator in a compressor cooling system.
    The parallel lines 5b, Sc merge into a common line 5d which leads the liquid medium to the electrical energy storage 2. The liquid medium is led in lamp-shaped channels in heat-transferring contact with the electrical energy storage 2. The liquid-like medium which leaves the electrical energy storage 2 has damned a temperature which essentially corresponds to the temperature of the electrical energy storage 2. The liquid medium which leaves the electrical energy storage 2 is received in a line 5e. The line 5e leads the liquid medium to the DC converter 3 where it is conducted in heat-transmitting contact with the DC converter 3. The liquid medium is then led, via a line 5f, to the inverter 4 where it is conducted in heat-transmitting contact with the inverter 4. The liquid medium is then led back to pump 6 via a line 5g. The arrangement comprises an expansion tank 10 which is connected to the line 5g via a line 5h which forms a so-called static line. The thermostat 7 comprises a pulpit body which may be a wax body which changes phase from solid state to liquid state at a control temperature. Alternatively, the thermostat can be electrically controlled. When the wax body is in a solid state, the thermostat 7 leads the liquid medium to the first parallel line 5b and the heating device 8. When the wax body is in a liquid state, the thermostat 7 leads the liquid medium to the second parallel line 5c and the cooling device 9. The thermostat 7 regulates temperature in this embodiment an upper spruce value t2 at the temperature of the electrical energy storage which, for example, may be 30 ° C. The upper spruce barrier was advantageously set with a good upper maximum temperature at which the electrical energy storage 2 obtains an accelerated aging. The arrangement comprises a pilot line 5i which leads a smaller part of the liquid-shaped medium from the line 5e to the thermostat 7 where the liquid-shaped medium obtains heat-transferring contact with the wax body. Since the liquid medium has a temperature in the line 5e which substantially corresponds to the temperature of the electrical energy storage 2, the thermostat 7, via the liquid medium in the pilot line 5i, senses a temperature which corresponds with good accuracy to the temperature of the electric energy storage.
    After the liquid medium has passed the thermostat 7, it is led, via a vent line 5j, to the expansion tank 10. In this embodiment, a further thermostat 11 has been arranged in the pilot line 5i. The additional thermostat 11 is adapted to control the activation of the heating device 8 in dependence on the temperature of the electrical energy storage 2. The heating device 8 is in this case thus an electric heating device which can be easily switched off with the aid of a switch or the like. The task of the thermostat 11 is to switch off the heating device 8 when the electrical energy storage 2 has a higher temperature than the control temperature of the thermostat 11 and to activate the heating device 8 when the electrical energy storage has a lower temperature than the control temperature of the thermostat 11. The control temperature of the thermostat 11 in this embodiment corresponds to a lower spruce value at the temperature of the electrical energy storage 2 which, for example, can be 15 ° C. The lower spruce sword sat with advantage with good.
    During operation of the vehicle, a pump circulates a 6 coolant in the line circuit 5.
    The thermostat 7, with the aid of the liquid medium in the pilot line 5, senses the temperature of the electrical energy storage 2. In the case of operation when the electrical energy storage 28 has a predetermined temperature which in this case is below 15 ° C, the thermostat 7 leads the liquid medium to the first parallel line 5b and the heating device 8. The additional thermostat 11, which thus also senses the electrical energy storage 2 temperature with the aid of the liquid medium in the pilot line Si, again the heating device 8 in an active layer.
    The heating device tiff & damned heat energy to the liquid medium in the first parallel line 5b. The liquid medium is thus heated to a temperature which is clearly higher than the temperature of the electrical energy storage 2. The liquid medium thus provides an efficient and fast heating of the electrical energy storage 2. The liquid medium is cooled down as it heats the electrical energy storage 2 so that it has essentially the same temperature as the electrical energy storage 2 when it reaches the line 5e. The liquid medium then cools the DC converter 3 and the inverter 4 before it is led to the pump 6. The active heating results in the electrical energy storage 2 rapidly obtaining a temperature above the lower spruce value and a temperature below the temperature range suitable for operation of the electrical energy storage 2.
    During operating cases when the electrical energy storage has a temperature Mom the appropriate range, ie. in this case between 15-30 ° C the thermostat 7 leads the liquid medium to the first parallel line 5b and the heating device 8. The further thermostat 11 now senses that the electrical energy storage 2 has a temperature above the lower spruce value. The additional thermostat 11 houses the heating device 8 in the shut-off layer. The liquid medium is passed armed through the first parallel line 5b without being heated by the heating device 8. After the liquid medium has been in heat transfer contact with the electric energy storage 2, it cools the DC converter 3 and the inverter 4 which generally have a higher temperature than the electric energy storage 2.
    During operating cases when the electrical energy storage receives a fO hEig, ie. in this case a temperature above 30 ° C the thermostat 7 leads the liquid medium to the second parallel line Sc and the cooling device 9. The liquid medium then receives a cooling of the cooling device 9 to a lower temperature than the temperature of the electrical energy storage 2. The liquid medium then provides an efficient cooling of the electrical energy storage 2. The liquid medium then cools the DC converter 3 and the inverter 4 before it is led back to the pump 6. The active cooling leads to the electrical energy storage 2 quickly obtaining a lower temperature than the upper spruce value t2 and below a temperature within the temperature range suitable for operation of the electrical energy storage 2.
    Fig. 2 shows an alternative embodiment. In this case a valve means in the form of a three-car thermostat 16 is used. The three-car thermostat 16 can guide the liquid-shaped medium through three alternative parallel lines 5b, 5c, 5k. The first parallel line comprises a heating device 8, the second parallel line comprises a cooling device 9 and the third parallel line 5k comprises no heat transfer device. When the thermostat 16 senses that the electrical energy storage 2 has a temperature lower than a lower spruce value t, the thermostat 16 directs the liquid medium through the first parallel line 5b and the heating device 8. The heating device 8 provides has a heating of the liquid medium before it is led to the electrical energy storage 2. The electrical energy storage 2 provides an efficient and rapid heating to a temperature within the suitable temperature range. When the thermostat 16 senses that the electrical energy storage 2 has a temperature higher than an upper spruce value t2, the thermostat 16 guides the liquid medium through the second parallel line Sc and the cooling device 9. The cooling device 9 provides has a cooling of the liquid medium before it is led to the electrical energy storage 2. The electrical energy storage 2 thus obtains an efficient and fast cooling to a temperature within the suitable temperature range. When the thermostat 16 detects that the electrical energy storage 2 has a temperature within the lamp range defined by the lower spruce t1 and the upper spruce t2, the thermostat 16 leads the liquid medium through the third parallel line 5k where no heat exchange takes place.
    The liquid medium in this case is conducted with an unchanged temperature to heat-transferring contact with the electrical energy storage.
    Fig. 3 shows a further alternative embodiment of the arrangement. The arrangement comprises largely the same components as in the embodiment in Figs. 1 and 2. We do not make any further review of the common components. In this case, however, a valve means in the form of a solenoid valve 12 is used. of a control unit 13. A temperature sensor 14 the temperature of the electrical energy storage 2. Alternatively, the temperature sensor 14 can sense the temperature of the coolant in the line 5e which essentially corresponds to the temperature 2 of the electrical energy storage.
    During operation of the vehicle, a pump circulates a 6 coolant in the line circuit S. The control unit 13 essentially continuously receives information from the temperature sensor 14 regarding the temperature of the electrical energy storage. In operating cases when the electrical energy storage 2 has a pre-set temperature which in this case is below 15 ° C, the control unit 13 places the solenoid valve in a storage in which the liquid medium is led to the first parallel line 5b and the heating device 8. Since the electrical energy storage 2 has at a low temperature, the control unit 13 activates the heating device 8.
    The heating device 8 thus supplies heat energy to the liquid-shaped medium in the first parallel line 5b. The liquid medium is heated armed to a temperature which is clearly higher than the temperature of the electrical energy storage 2. The liquid medium thus provides an efficient heating of the electrical energy storage 2. The temperature of the liquid medium drops as it heats the electrical energy storage 2 to a level so that it has substantially the same temperature as the electrical energy storage 2 when it reaches line 5e. The liquid medium then cools the DC converter 3 and the inverter 4 before it is led to the pump 6. The active heating results in the electrical energy storage 2 quickly obtaining a higher temperature than the lower spruce value and clamed a temperature within the temperature range suitable for operation of the electrical energy storage 2.
    During operating cases when the control unit 13 receives information from the temperature sensor 14 which indicates that the electrical energy storage 2 has a temperature within the lamp range, i.e. in this case a temperature between 15-30 ° C, the solenoid valve 12 leads the liquid medium to the line 5b and the heating device 8. The control unit 13 places the heating device 8 in the suspended Paget. The liquid medium is passed armed through the first parallel line 5b without being heated by the heating device 8. After the liquid medium has been in heat-transmitting contact with the electric energy storage 2, it cools the DC converter 3 and the inverter 4 which generally have a higher temperature than the electric energy storage. 2.
    During operating cases when the control unit 13 receives information from the temperature sensor 14 which indicates that the electrical energy storage 2 has a too high temperature, ie. in this case a temperature above 30 'V, the solenoid valve 12 leads the liquid medium to the second parallel line 5c and the cooling device 8. The liquid medium then receives a cooling of the cooling device 8 to a lower temperature than the temperature of the electric energy storage 2. The liquid medium then provides a cooling of the electric energy storage 2. The liquid medium then cools the DC converter 3 and the inverter 4 before it is led back to the pump 6. The active cooling leads to the electric energy storage 2 quickly obtaining a lower temperature than the upper spruce value. and below a temperature within the temperature range suitable for operation of the electrical energy storage 2.
    Fig. 4 shows a further alternative embodiment. In this case, a valve means in the form of a three-way solenoid valve 16a is used. The solenoid valve 16a can guide the liquid medium through three alternative parallel lines 5b, 5c, 5k. The first parallel line comprises a heating device 8, the second parallel line comprises a cooling device 9 and the third parallel line 5k comprises no heat transfer device. When the control unit 13 receives information from the temperature sensor 14 indicating that the electrical energy storage 2 has a lower temperature than a lower spruce value, the solenoid valve 16a guides the liquid medium through the first parallel line 5b and the heating device 8. The heating device 8 provides a heating of the liquid medium. before it is led to the electrical energy storage 2. The electrical energy storage 2 receives an efficient and rapid heating to a temperature within the suitable temperature range. When the control unit 13 receives information from the temperature sensor 14 which indicates that the electrical energy storage 2 has a temperature which is higher than an upper spruce value t2, the solenoid valve 16a leads the liquid medium through the second parallel line Sc and the cooling device 9.
    The cooling device 9 provides has a cooling of the liquid medium before it is led to the electrical energy storage 2. The electrical energy storage 2 obtains an efficient and rapid cooling to a temperature within the suitable temperature range. When the control unit 13 receives information from the temperature sensor 14 indicating that the electrical energy storage 2 has a temperature within the lamp range defined by the lower spruce t1 and the upper spruce t2, the solenoid valve 16a guides the liquid medium through the third parallel line 5k where it does not occur. some heat exchange. The liquid medium is in this case conducted with an unchanged temperature to heat-transferring contact with the electrical energy storage. The invention is in no way limited to those concerned. the embodiments described in the drawings but can be varied freely within the scope of the patent claims. 13
    权利要求:
    Claims (16)
    [1]
    An arrangement for regulating the temperature of an electrical energy storage (2) in a vehicle (1), the arrangement comprising a line circuit (5), a pump (6) adapted to circulate a liquid medium in the line circuit (5) so as to the liquid medium receives heat transferring contact with the electrical energy storage (2), a heating device (8) adapted to heat the liquid medium and a cooling device (9) adapted to cool the liquid medium, the line circuit (5) comprising a valve means (7, 7a, 16, 16a) and at least two parallel lines (5b, 5c, 5k) arranged in a position immediately upstream of the electrical energy storage (2), one of the parallel lines (5b) comprising the heating device (8) and that another of the parallel lines (Sc) comprises the cooling device (9), the valve means (7, 7a, 16, 16a) being adapted to guide the medium through the parallel line (5b) comprising the heating means the north (8) at the operating times when the electric energy storage (2) has a temperature below a lower spruce value (ti) and to pass the medium through the parallel line (Sc) which includes the cooling device (9) at the operating times when the electric energy storage (2) has a temperature Above an upper spruce value (t2). characterized in that the valve means (7, 16) is adapted to guide the liquid medium through a specific parallel line (5b, Sc, 5k) in which there is no heat exchange during the operating cases in which the electrical energy storage (2) has a higher temperature than the lower spruce value (t1) and a lower temperature than the upper spruce value (t2).
    [2]
    Arrangement according to claim 1, characterized in that said specific parallel line consists of one of the parallel lines (5b, Sc) comprising the heating device (8) or the cooling device (9), the heating device (8) or the cooling device (9) being adapted to be switched off when the electrical energy storage (2) has a higher temperature than the lower spruce value (t1) and a lower temperature than the upper spruce value (t2).
    [3]
    Arrangement according to claim 1, characterized in that said specific parallel line consists of a separate parallel line (5k).
    [4]
    Arrangement according to any one of the preceding claims, characterized in that the liquid-shaped medium is adapted to be conducted in heat-transferring contact with at least 14 a component (3, 4), which regulates the flow of electrical energy to and from the electrical energy storage (2), after that it has been in heat transfer contact with the electrical energy storage (2).
    [5]
    Arrangement according to any one of the preceding claims, characterized in that the arrangement is adapted to estimate the temperature of the electrical energy storage (2) by means of the temperature of the liquid medium in a line (5e) which receives the liquid medium after it has left the electrical energy storage. (2).
    [6]
    Arrangement according to one of the preceding claims, characterized in that the valve means is a thermostat (7, 7a).
    [7]
    Arrangement according to claim 6, characterized in that the thermostat (7, 7a) comprises a wax body which changes phase at a control temperature corresponding to the upper spruce value (t2) or the lower spruce value (t1).
    [8]
    Arrangement according to claim 6 or 7, characterized in that the line circuit (5) comprises a pilot line (5i) which leads a part of the wash-shaped medium from the line (5e), which receives the liquid-shaped medium after it has left the electrical energy storage (2). ), to the thermostat (7, 7a).
    [9]
    Arrangement according to claim 8, characterized in that the line circuit (5) comprises a line (5j) which leads the whitish medium from the thermostat (7, 7a) to an expansion tank (10).
    [10]
    Arrangement according to claim 9, characterized in that the line (5j), which leads the whitish-shaped medium from the thermostat (7, 7a) to an expansion tank (10), is a vent line.
    [11]
    Arrangement according to any one of the preceding claims 1 to 5, characterized in that the valve means is a solenoid valve (16, 16a).
    [12]
    Arrangement according to claim 11, characterized in that the arrangement comprises a sensor (14) adapted to directly or indirectly sense the temperature of the electrical energy storage (2) and a control unit (13) adapted to receive information from said sensor (14). and controlling the solenoid valve (16, 16a) so as to guide the liquid medium through one of said parallel lines depending on the temperature of the electrical energy storage (2).
    [13]
    Arrangement according to one of the preceding claims, characterized in that the heating device (8) is an electric heating element.
    [14]
    Arrangement according to one of the preceding claims, characterized in that the cooling device (9) is a radiator in which the liquid medium is cooled by air.
    [15]
    Arrangement according to one of the preceding claims, characterized in that the cooling device is an evaporator of an AC system.
    [16]
    A method for controlling the temperature of an electrical energy storage (2) in a vehicle (1), the vehicle comprising a line circuit (5), a pump (6) adapted to circulate a liquid medium in the line circuit (5). the liquid medium obtaining heat transfer contact with the electrical energy storage (2), a heating device (8) adapted to heat the liquid medium and a cooling device (9) adapted to cool the liquid medium, the line circuit (5) comprising at least two parallel lines (5b, Sc, 5k) arranged in a position immediately upstream of the electrical energy storage (2), and wherein one of the parallel lines (5b) comprises the heating device (8) and that another of the parallel lines (Sc ) comprises the cooling device (9), characterized in that the steps of guiding the medium through the parallel line (5b) comprising the heating device (8) in the operating cases when the electrical energy the bearing (2) has a temperature below a lower spruce value (t1), to guide the medium through the parallel line (Sc) which comprises the cooling device (9) in the case of operation when the electrical energy storage (2) has a temperature above an upper spruce value (t2) and conducting the liquid medium through a specific parallel conduit (5b, Sc, 5k) in which there is no heat exchange in the case of operation in which the electrical energy storage (2) has a higher temperature than the lower spruce wire (ti) and a lower temperature than the upper spruce sword (t2). 16 1/2
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    同族专利:
    公开号 | 公开日
    DE112014005303T5|2016-08-04|
    SE1351512A1|2015-06-16|
    WO2015094097A1|2015-06-25|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20080295535A1|2007-06-04|2008-12-04|Robinet Kevin J|Active high voltage liquid cooled thermal management system|
    EP2212136B1|2007-11-13|2011-06-22|Behr GmbH & Co. KG|Device for cooling a heat source of a motor vehicle|
    US8082743B2|2009-02-20|2011-12-27|Tesla Motors, Inc.|Battery pack temperature optimization control system|SE539037C2|2015-12-08|2017-03-28|Scania Cv Ab|Method and control system for charging an accessory battery and a hybrid energy storage of a plug-in hybrid vehicle|
    SE544022C2|2018-10-16|2021-11-02|Scania Cv Ab|Cooling system and a vehicle comprising said cooling system|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1351512A|SE1351512A1|2013-12-17|2013-12-17|Arrangement and method for regulating the temperature of an electrical energy store in a vehicle|SE1351512A| SE1351512A1|2013-12-17|2013-12-17|Arrangement and method for regulating the temperature of an electrical energy store in a vehicle|
    PCT/SE2014/051502| WO2015094097A1|2013-12-17|2014-12-15|Arrangement and method for regulating the temperature of an electrical energy storage in a vehicle|
    DE112014005303.1T| DE112014005303T5|2013-12-17|2014-12-15|Arrangement and method for regulating the temperature of a power storage system in a vehicle|
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