• 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:
    The present invention relates to a rotating electrical machine for a motor vehicle. The machine (1) comprises a rotor (2) fed by an excitation current (ie), a stator (3) comprising a polyphase winding and coupled to the rotor (2), a thermal protection module (4) adapted to evaluate at least one temperature (T1, T2, T3) in the machine and for comparing this temperature with an associated thermal protection threshold (Th), a control device (5) supplying the excitation current (ie) as a function of an operating mode command (RQ) and said temperature comparison, so as to operate the rotating electrical machine (1) in one of a nominal generator mode in which the machine is configured to deliver a first maximum power or at least one extended generator mode in which the machine is configured to deliver a second maximum power greater than said first maximum power.
    公开号:FR3021468A1
    申请号:FR1454617
    申请日:2014-05-22
    公开日:2015-11-27
    发明作者:Cyril Granziera；Ronald Malbranque
    申请人:Valeo Equipements Electriques Moteur SAS；
    IPC主号:
    专利说明:

    [0001] TECHNICAL FIELD OF THE INVENTION The present invention relates to a rotating electric machine for a motor vehicle. It finds a particular but non-limiting application in the field of automotive starter-alternators. BACKGROUND OF THE INVENTION In a motor vehicle comprising a heat engine and a rotating electrical machine such as an alternator or an alternator-starter, such a machine comprises in a non-limiting manner: a rotor comprising an inductor in which is injected an excitation current; and a stator comprising a polyphase winding. In alternator mode, also called generator mode, the machine makes it possible to transform a rotational movement of the rotor driven by the engine of the vehicle into an electric current induced in the phases of the stator. A rectifier bridge connected to the phases of the stator makes it possible to straighten the sinusoidal induced current in a direct current which supplies consumers in the vehicle as well as a battery.
    [0002] Due in particular to the increasing electrification of motor vehicles and the development of "hybrid" type vehicles, the demand for alternator current in the on-board vehicle network is becoming increasingly important. The rotating electrical machine is dimensioned to continuously provide a nominal current that corresponds substantially to the maximum current that can provide the machine. However, this maximum current is well above the average current consumption of the motor vehicle. Indeed, the motor vehicle does not need a significant current permanently and the average current delivered by the machine is well below the maximum current that it can provide. A disadvantage of this state of the art lies in the fact that the rotating electrical machine is oversized compared to the average needs of the motor vehicle. In this context, the present invention aims to solve the aforementioned drawback.
    [0003] GENERAL DESCRIPTION OF THE INVENTION For this purpose, the invention proposes a rotary electric machine for a motor vehicle comprising: a rotor powered by an excitation current; a stator comprising a polyphase winding and coupled to said rotor; a thermal protection module adapted to evaluate at least one temperature in the rotating electrical machine and to compare said at least one temperature with an associated thermal protection threshold; a control device supplying the excitation current according to an operating mode command and the temperature comparison, so as to operate the rotating electrical machine according to one of: a nominal generator mode in which machine is configured to deliver a first maximum power; or - at least one extended generator mode in which the machine is configured to deliver a second maximum power greater than the first maximum power.
    [0004] Thus, by controlling the rotating electrical machine in extended generator mode or nominal generator mode by varying the excitation current of the rotor while thermally protecting said rotating electrical machine, it is possible to use smaller rotating electrical machines that can provide a current maximum as important as a high-class rotating electric machine.
    [0005] According to non-limiting embodiments, the electronic assembly may furthermore comprise one or more additional characteristics among the following: a) The control device is adapted to receive the operating mode control from an engine control unit. b) The control device is adapted to limit the excitation current of the rotor to operate the rotating electrical machine in the nominal generator mode if the temperature thereof is greater than the associated thermal protection threshold. c) The control device is adapted to increase the excitation current of the rotor to operate the rotating electrical machine in the extended generator mode if the temperature thereof is below the determined protection threshold and if the control device receives an operating mode command in extended generator mode. d) The adaptation of the excitation current is performed according to a maximum excitation current mapping not to be exceeded as a function of the speed of the rotor, a mapping being associated with a given operating mode. e) The thermal protection module is adapted to evaluate the following three temperatures: a first stator temperature, a second temperature of power modules connected to the stator, and a third temperature of the control device. f) The first stator temperature is a temperature value measured on the stator via a temperature sensor; or an estimated temperature value of the stator. g) The estimated temperature value of the stator is based on: the ambient temperature, an increase in temperature between the ambient temperature and the stator temperature, the thermal capacity of the rotating electrical machine, the thermal conductance of the rotating electrical machine, and equivalent losses of the stator. h) The control device is adapted to send to an engine control unit of the motor vehicle information relating to the operating mode of the rotating electrical machine. i) The rotating electrical machine is an alternator-starter. j) The rotating electrical machine is an alternator. k) An extended generator mode can be used for a regenerative braking mode.
    [0006] BRIEF DESCRIPTION OF THE FIGURES The invention and its various applications will be better understood on reading the description which follows and on examining the figures that accompany it. - Figure 1 shows a block diagram of a rotating electrical machine for a motor vehicle according to a non-limiting embodiment of the invention; FIG. 2 shows curves representing a current delivered by the rotating electrical machine of FIG. 1 for different modes of operation; FIG. 3 illustrates various functions performed by the rotating electrical machine of FIG. 1; FIG. 4 represents a flowchart of a thermal evaluation performed by a thermal protection module of the rotating electrical machine of FIG. 1; FIG. 5 shows curves representing a maximum excitation current as a function of the rotor speed of the rotating electrical machine of FIG. 1 for different modes of operation. DESCRIPTION OF EMBODIMENTS OF THE INVENTION The identical elements, structure or function, appearing in different figures retain, unless otherwise specified, the same references. The rotary electric machine 1 for a motor vehicle is described with reference to FIGS. 1 to 5. As illustrated in FIG. 1, according to a nonlimiting embodiment, the rotary electric machine 1 comprises: a reference rotor ROT 2 powered by a excitation current ie; a STAT stator referenced 3 comprising a polyphase winding and coupled to said rotor 2; a thermal protection module PRO_TH referenced 4; a command device CMD referenced 5. In a first non-limiting embodiment, the rotating electrical machine 1 is a conventional alternator. In this case, the control device 5 can be integrated in the voltage regulator of the machine. In a second non-limiting embodiment, the rotating electrical machine 1 is a reversible machine operating in motor mode or in generator mode, such as an alternator-starter. In this case, the control device 5 can be integrated in the control circuits of the reversible and activated machine when it operates in generator mode. The various elements of the rotary electric machine 1 are described in more detail below.
    [0007] The rotor 2 is an inductor into which is injected an excitation current ie.
    [0008] On the rotor 2 is fixed a TG magnetic target referenced 10. The magnetic target 10 coupled to Hall effect sensors 52 provides the position of the rotor 2 which is necessary to operate the machine in motor mode.
    [0009] The stator 3 is connected via its phases to power modules 7, here three power modules, which form the bridge rectifier / inverter. The thermal protection module 4 is adapted to measure or estimate at least one temperature T in the rotating electrical machine 1 and compare it with a thermal protection threshold th associated. In a non-limiting embodiment, three temperatures T are measured or evaluated, which are the following: a first temperature T1 of the stator 3; a second temperature T2 of the power modules 7; a third temperature T3 of the control device 5, and in particular of its electronic components.
    [0010] The first temperature T1 of the stator 3 is: I) a measured temperature value V1 on the stator 3 via a temperature sensor Ct (arranged directly on the bunches of the stator); or m) an estimated temperature value V2 of the stator 3.
    [0011] To estimate the temperature value V2 of the stator 3, in a non-limiting embodiment, the following is based on: n) the ambient temperature of the rotating electrical machine 1bamb (delivered by an abacus); o) an increase in temperature Δt between the ambient temperature Eamb and the temperature of the stator 3; p) the thermal capacity Cth of the rotary electric machine 1; q) the thermal conductance Gth of the rotating electrical machine 1; and r) the equivalent losses Ps of the stator 3.
    [0012] In a non-limiting example, the third temperature T3 is measured by means of a temperature sensor of the CTN type. As illustrated in FIG. 1, the control device 5 is: - connected to the rotor 2; - connected to an ECU engine control unit referenced 6 via a CNX signal connector. It uses in a non-limiting example, a LIN communication bus ("Local Interconnect Network") to communicate with said engine control unit 6. - connected to the RES of the referenced network 8 of the motor vehicle; and - connected to the BAT battery referenced 9 of the motor vehicle. The control device 5 produces the excitation current IE of the rotor 2 as a function of an operating mode control RQ (also called piloting request) and of said temperature comparison, so as to operate the rotating electrical machine 1 according to an operating mode M among: s) a nominal generator mode M1; or t) at least one extended generator mode M2, M2 'of higher power. According to a non-limiting embodiment, the control device 5 is adapted to operate the machine 1 in the extended generator mode M2 of power greater than that provided in the nominal generator mode 30 M1 By higher power is meant that the electric machine turn 1 provides a higher current than it would provide in the nominal generator mode M1. In other words, the rotating electrical machine 1 will be sized for the average current supplied in the nominal generator mode M1, but may provide in the extended generator mode M2 a larger current than that provided in the nominal generator mode M1 as long as the thermal allows. Thus, we will be able to propose a rotating electrical machine sized for the average current consumption of the vehicle and no longer for maximum consumption, while allowing the rotating electrical machine to operate beyond its design thanks to integrated thermal protection. In a non-limiting embodiment, there are two extended generator modes: a first extended generator mode M2 which enables the rotating electrical machine 1 to deliver a current If greater than the current delivered during the nominal generator mode M1. In a nonlimiting example, this mode M2 will typically occur for periods of dt minutes to fifteen minutes; a second extended generator mode M2 'which corresponds, for example, to a regenerative braking mode and which enables the rotary electrical machine 1 to deliver a current If greater than the current delivered during the first extended generator mode M2. In a non-limiting example, this mode M2 'will typically occur for periods of dt seconds to tens of seconds.
    [0013] FIG. 2 illustrates in a nonlimiting example the current output If of the rotating electrical machine for the various generator modes presented. On the abscissa is indicated the speed of rotation of the rotor 2 in revolutions per minute (N), and on the ordinate the flow current If.
    [0014] As illustrated in the figure, in non-limiting examples: the nominal generator mode M1 allows the rotating electrical machine to deliver a current If of 230A at 6000 rpm; the first extended generator mode M2 enables the rotating electrical machine 1 to deliver a current If of 250 A at 6000 rpm; the second extended generator mode M2 'allows the rotary electrical machine 1 to deliver a current If of 350A at 6000 rpm. Thus, the rotating electrical machine 1 is sized to continuously output 230A at 6000rpm in the non-limiting example taken. In this example taken, the rotating electrical machine 1 is said to be of class 23. Thus, there is a rotating electrical machine of class 23 which can provide for a certain short time dt dependent on the thermal current If of 250A, or 350A thus corresponding to a machine of higher class 25 or even 35. The dimensioning of such a rotating electrical machine 1 is performed in the following manner. In a conventional alternator, when the excitation current supplied to the wound rotor has substantially a duty cycle of 100%, the excitation current being a pulse width modulated signal (PWM signal), the alternator can supply its power. maximum close to the nominal power of the machine. The electrical resistance of the rotor winding is dimensioned such that when the excitation current is at its maximum (100% duty cycle), a maximum excitation magnetic flux is produced in the machine 1. In a machine 1 according to the equivalent invention in its generator mode nominal to the conventional alternator above, the electrical resistance R rotor excitation coil must be substantially lower than that of this conventional alternator, so as to inject more current d excitation and thus obtain the power corresponding to the extended generator mode. For example, in the nominal generator mode, the maximum excitation current will be 60% duty cycle and 80% and 100% in the extended generator modes M2 and M2 '.
    [0015] The engine control unit 6 sends the operating mode command RQ to the control device 5. It is this unit 6 which knows the power requirements of the consumers of the motor vehicle. In non-limiting examples, the consumers of the vehicle are: - an electric defrost; - a heating system for mirrors; - a heating system for the seats; - an electric compressor for air conditioning; - a radio ; - lighting and signaling lights etc. Thus, as will be seen below, at the request of the engine control unit 6 and as a function of the three evaluated temperatures T1, T2, T3, the control device 5 will modify the excitation current ie, so that the rotating electrical machine 1 provides, in extended generator mode, more power to the vehicle's on-board network 8 when the current calls by the consumers on the on-board electrical system are important. FIG. 3 presents a functional block diagram of the functions performed by the different elements of the rotary electrical machine 1 to enable it to operate according to a given generator mode M. The control device 5 is adapted to perform a reading of the LIN communication bus . It thus acquires information sent by the engine control unit 6 via the LIN communication bus (function RX (RQ (M), Cu)). The information received by the control device 5 is: - a mode of operation control RQ. In a non-limiting example, the RQ command of first extended generator mode M2 is received. The engine control unit 6 thus requires the rotating electrical machine 1 to supply more current. This will be the case for example just after the start of the engine of the vehicle, when it is cold. Indeed, in the latter case, the vehicle's onboard network must provide a very important current for many consumers of the vehicle (defrosting systems, heating, etc.). Note that the defrosting time lasts about 5 minutes and is therefore less than the transient period of 15 minutes of the first extended generator mode M2. a voltage setpoint Cu to enable the control device 5 to regulate the edge network 8 at this voltage value. In a nonlimiting example, the voltage setpoint is equal to 14.5 V. The control device 5 analyzes the operating mode command RQ coming from the engine control unit 6 (ANALYS function (RQ)) and it regulates the voltage of the rotary electrical machine 1 (REGUL function (Cu, Us).) In order to regulate the voltage, the control device measures the voltage Us at the terminals of the rotating electrical machine 1 (MES_Us function) and compares it with the reference voltage Cu. The thermal protection module 4 evaluates the thermal protection of the machine (function CALC_T (T, Th)) To this end, the module 4 measures or estimates at least one temperature T in the machine 1 and compares it with a protection threshold In the nonlimiting embodiment, the module 4 measures or estimates the first temperature T1 of the stator 3, the second temperature T2 of the power modules 7, and the third temperature T3 of the electronic components of the device. control 5 and compares them with respective associated thermal protection thresholds Th1, Th2 and Th3. With reference to FIG. 4, the evaluation CALC_T comprises the following steps: the thermal protection module 4 compares the first temperature T1 with a first thermal protection threshold Th1. If it is greater than the first threshold Th1, the thermal protection module 4 sends a thermal protection instruction 11 to the control device 5 to indicate that the machine can not operate in extended generator mode M2 as requested because it has reached its maximum temperature allowed in the stator (function TX_11 (4,5,11 = 1) shown). This information 11 is for example a flag set to 1. - in the negative (the first temperature T1 is below the first threshold Th1), the thermal protection module 4 compares the second temperature T2 to the second thermal protection threshold Th2. If it is greater than this second threshold Th2, the thermal protection module 4 sends the thermal protection instruction 11 to the control device 5 to indicate that the machine can not operate in extended generator mode M2 as requested because it has reached its temperature maximum allowed in power modules (function TX_11 (4,5, I1 = 1) shown). The flag 11 is set to 1. - in the negative (the second temperature T2 is below the second threshold Th2), the thermal protection module 4 compares the third temperature T3 to the third thermal protection threshold Th3. If it is higher than this third threshold Th3, the thermal protection module 4 sends the thermal protection instruction 11 to the control device 5 to indicate that the machine can not operate in extended generator mode M2 as requested because it has reached its temperature maximum allowed in the electronic components of said control device 5 (function TX_l1 (4,5, 11 = 1) illustrated). The flag 11 is set to 1. - in the negative (the third temperature T3 is below the third threshold Th3), the thermal protection module 4 sends the thermal protection instruction 11 to the control device 5 to indicate that the machine can operate in extended generator mode M2 as requested because it has not reached its maximum permitted temperature whether in the stator 3, in the power modules 7 or in the electronic components of said control device 5 (function TX 11 (4 , 5, 11 = 0) shown). The flag 11 is set to 0. Thus, the rotating electrical machine 1 is thermally protected, and whether or not its operation in extended generator mode is allowed according to its thermal. Of course, the comparisons of the different temperatures T1 to T3 can be performed in a different order than that presented above. With reference again to FIG. 3, when the control device 5 receives the thermal protection setpoint 11, as a function of this setpoint 11 and therefore comparisons of the temperatures measured or evaluated T1, T2, T3 with their respective thresholds Th1, Th2 , Th3, it will adapt the excitation current ie which feeds the rotor 2 in the following manner. The control device 5: - a) limits the excitation current ie of the rotor 2 to operate the rotating electrical machine 1 in the nominal generator mode M1 if the temperature T becomes greater than a determined protection threshold Th (function LIMIT_IE ( N, Cl)). In other words, if the control device receives the setpoint 11 = 1, it limits the current ie. In this case, the current flow rate If of the machine 1 is limited to the flow rate of the nominal generator mode M1. b) increases the excitation current ie of the rotor 2 to operate the rotating electrical machine 1 in the extended generator mode M2 if the temperature T is below a determined protection threshold Th and if the control device 5 receives a command operating mode RQ in M2 extended generator mode (which is the case in the example taken). In other words, if the control device receives the setpoint 11 = 0, it increases the current ie. In this case, the machine 1, which is dimensioned to conventionally provide a nominal current If, can supply, if necessary, on the on-board network a current greater than If as long as the temperature T of the machine allows it. This step b) is performed in the same way if the command RQ is an operating mode command M2 '.
    [0016] In a non-limiting embodiment, the adaptation of the excitation current ie is performed as a function of a mapping C1, C2, C2 '(or abacus) maximum excitation current iemax not to exceed the speed function N of the rotor 2, a mapping C1, C2, C2 'being associated with a respective operating mode M1, M2, M2'. On the ordinate is the maximum excitation current iemax in ampere (A) not to be exceeded and in abscissa the speed of the rotor N in revolutions per minute (rpm). This mapping C1, C2 is a maximum size not to be exceeded for the safety of the rotary electrical machine 1. It is adapted to the control situation coming from the engine control unit 6. It can be seen in FIG. maximum excitation current iemax not to be exceeded on the second cartographies C2, C2 'is greater than the maximum excitation current iemax not to be exceeded on the first mapping C1, and that on the second mapping C2' is greater than that on the second mapping C2. Thus, the control device 5 increases or limits the current ie while ensuring that said current ie is always less than the maximum allowed excitation current iemax. It will be noted that the control device 5 is adapted to measure the speed N of the rotor 2 and also to measure the excitation current ie which supplies the rotor 2. In fact, the speed N of the rotor is taken into account for the control of the rotor. excitation current. In a non-limiting embodiment, the measurement of the excitation current ie is carried out via a shunt in the control device 5.
    [0017] Thus, in case a) of the limitation of the excitation current ie (where at least one of the three temperatures T1, T2, T3 has reached its thermal protection threshold Th), the adaptation, here the limitation, of the current excitation is effected according to the first mapping C1 associated with the nominal generator mode M1 since the extended generator mode M2 is no longer available.
    [0018] In the case b) of the increase of the excitation current ie (case where none of the three temperatures T1, T2, T3 has reached its threshold of thermal protection Th), the adaptation, here the increase, of the current excitation is effected according to the second mapping C2 associated with the first extended generator mode M2 since this mode is available in the example taken (or as a function of the second mapping C2 'associated with the second mode extended generator M2'). In a non-limiting embodiment, the control device 5 is further adapted to send to the engine control unit 6 of the motor vehicle information F relating to the operating mode of said rotary electric machine 1 (function TX_F (5, 6, F) illustrated in Figure 3). In a non-limiting example, this information F is a flag. In the case of a) the limitation of the excitation current ie and thus the return to the nominal generator mode M1, or the non-passage in the extended generator mode M2, the flag F is set to 1 (function SET_F (F = 1)) . Obviously the thermal evaluation of the machine 1 is done continuously. Also, if the temperatures T1, T2, T3 subsequently drop so as to return below their respective threshold, Th1, Th2, Th3, the machine will be able to switch to extended generator mode M2 or M2 '.
    [0019] In the case b) of the increase of the excitation current ie and thus of the transition to the first extended generator mode M2 in the example taken (or M2 '), the flag F is set to 0 (function SET_F (F = 0 )). The engine control unit 6 is thus prevented if its RQ driving request with the extended generator mode M2 (in the example taken) has worked or not.
    [0020] Of course, the description of the invention is not limited to the application, the embodiments and the examples described above. Thus, the present invention applies to all types of reversible polyphase rotating electrical machines, such as alternator-starters, driven for example by belt or integrated, and in particular for hybrid applications. Of course, the description of the invention is not limited to the embodiments and examples described above.
    [0021] Thus, the thermal protection module 4 can be integrated into the control device 5. u) it makes it possible to propose a lower-class rotating electric machine and therefore smaller and less powerful to transiently fill the same needs of the vehicle in term current than a higher class, with temperature monitoring; v) it provides a transient energy recovery mode for a machine that is usually designed to hold the generator mode permanently; w) it is simple to implement and inexpensive. 20
    权利要求:
    Claims (12)
    [0001]
    REVENDICATIONS1. Rotary electric machine (1) for a motor vehicle, according to which said rotary electric machine (1) comprises: x) a rotor (2) supplied with an excitation current (ie); y) a stator (3) comprising a polyphase winding and coupled to said rotor (2); z) a thermal protection module (4) adapted to evaluate at least one temperature (T) in the rotating electrical machine (1) and to compare said at least one temperature (T) with an associated thermal protection threshold (Th); aa) a control device (5) of the rotor (2) supplying the excitation current (ie) according to an operating mode command (RQ) and said temperature comparison, so as to operate the machine rotary electric motor (1) according to an operating mode (M) among: bb) a nominal generator mode (M1) in which the machine is configured to deliver a first maximum power; or cc) at least one extended generator mode (M2, M2 ') in which the machine is configured to deliver a second maximum power greater than said first maximum power.
    [0002]
    2. The rotary electric machine (1) according to claim 1, wherein the control device (5) is adapted to receive from said engine control unit (6) said operating mode control (RQ).
    [0003]
    3. Rotating electric machine (1) according to claim 1 or 2, wherein the control device (5) is adapted to limit the excitation current (ie) of the rotor (2) to operate the rotating electrical machine (1). ) in the nominal generator mode (M1) if the temperature thereof (T) is greater than the associated thermal protection threshold (Th).
    [0004]
    4. A rotary electric machine (1) according to any one of the preceding claims 1 to 3, wherein the control device (5) is adapted to increase the excitation current (ie) of the rotor (2) to operate the rotary electric machine (1) in the extended generator mode (M2, M2 ') if the temperature thereof (T) is below the determined protection threshold (Th) and if the control device (5) receives a control of operating mode (RQ) in extended generator mode (M2, M2 ').
    [0005]
    5. rotary electric machine (1) according to any one of claims 1 to 4, wherein the adaptation of the excitation current (ie) is performed according to a mapping (C1, C2) current of maximum excitation (iemax) not to be exceeded as a function of the speed (N) of the rotor (2), a mapping (C) being associated with a given operating mode (M).
    [0006]
    6. Rotating electrical machine (1) according to any one of the preceding claims 1 to 5, the thermal protection module (4) is adapted to evaluate the following three temperatures (T): dd) a first temperature (T1) of the stator (3); ee) a second temperature (T2) of power modules (7) connected to the stator (3); and ff) a third temperature (T3) of the control device (5).
    [0007]
    7. rotary electric machine (1) according to claim 6, wherein the first temperature (T1) of the stator (3) is: gg) a measured temperature value (V1) on the stator (3) via a temperature sensor (Ct); or hh) an estimated temperature value (V2) of the stator (3).
    [0008]
    8. rotary electric machine (1) according to the preceding claim 7, wherein the estimated temperature value (V2) of the stator (3) is based on: ii) the ambient temperature (0a); (jj) an increase in temperature (nt) between the ambient temperature (0amb) and the stator temperature; kk) the thermal capacity (Cth) of the rotating electrical machine (1); II) thermal conductance (Gth) of the rotating electrical machine (1); and mm) the equivalent losses (Ps) of the stator (3).
    [0009]
    9. A rotary electric machine (1) according to any one of the preceding claims 1 to 8, wherein the control device (5) is adapted to send to an engine control unit (6) of the motor vehicle information (F). relating to the operating mode (M) of said rotary electric machine (1).
    [0010]
    10. A rotary electric machine (1) according to any preceding claim 1 to 9, wherein said rotating electrical machine is an alternator-starter.
    [0011]
    11. The rotary electric machine (1) according to any one of the preceding claims 1 to 9, wherein said rotating electrical machine is an alternator.
    [0012]
    12. A rotary electric machine (1) according to any one of the preceding claims 1 to 11, wherein an extended generator mode (M2 ') is a regenerative braking mode.
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    同族专利:
    公开号 | 公开日
    WO2015177428A2|2015-11-26|
    US20170194892A1|2017-07-06|
    CN106416052A|2017-02-15|
    WO2015177428A3|2016-03-03|
    FR3021468B1|2017-11-03|
    CN106416052B|2020-03-27|
    EP3146626A2|2017-03-29|
    US10224861B2|2019-03-05|
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    FR3070801B1|2017-09-06|2021-02-19|Valeo Equip Electr Moteur|THERMAL PROTECTION PROCESS OF A ROTATING ELECTRIC MACHINE|
    FR3073344B1|2017-11-09|2021-04-30|Valeo Equip Electr Moteur|PROCESS FOR REGULATING AN ELECTRIC CURRENT DELIVERED BY A ROTATING ELECTRIC MACHINE|
    FR3073685A1|2017-11-16|2019-05-17|Valeo Equipements Electriques Moteur|ELECTRIC MACHINE FOR A MOTOR VEHICLE COMPRISING A TEMPERATURE ESTIMATOR|
    FR3082686B1|2018-06-13|2020-06-19|Valeo Equipements Electriques Moteur|METHOD FOR THERMAL PROTECTION OF A ROTATING ELECTRIC MACHINE|
    CN109223573B|2018-10-31|2021-08-27|江西旺来科技有限公司|Self-heating heat preservation type nipple bottle|
    法律状态:
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    2015-11-27| PLSC| Search report ready|Effective date: 20151127 |
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    优先权:
    申请号 | 申请日 | 专利标题
    FR1454617A|FR3021468B1|2014-05-22|2014-05-22|ROTATING ELECTRIC MACHINE FOR MOTOR VEHICLE|FR1454617A| FR3021468B1|2014-05-22|2014-05-22|ROTATING ELECTRIC MACHINE FOR MOTOR VEHICLE|
    EP15725814.6A| EP3146626A2|2014-05-22|2015-04-28|Rotating electric machine for a motor vehicle|
    US15/313,311| US10224861B2|2014-05-22|2015-04-28|Rotating electric machine for a motor vehicle|
    CN201580026666.7A| CN106416052B|2014-05-22|2015-04-28|Rotating electrical machine for a motor vehicle|
    PCT/FR2015/051146| WO2015177428A2|2014-05-22|2015-04-28|Rotating electric machine for a motor vehicle|
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