Method of managing the electrical power supply of a crane from a main power source and a rechargeable auxiliary power source

Abstract

The present invention relates to a method of managing the electrical power supply of a crane from a main power source and a rechargeable auxiliary power source, for managing the power supply for electrically powering, via a conversion circuit (Q), the electrical equipment of a crane (CR) from a main power supply (PRIM) capable of supplying main power (PRPOW) and a rechargeable auxiliary power supply (SEC) capable of supplying auxiliary power (SECPOW), the power supply management method being characterized in that it comprises monitoring of the requested total power (RGPOW) corresponding to the power required by all the electrical equipment and monitoring of the charge level (CL) of the rechargeable auxiliary power supply (SEC).

Description

Technical Field

[0001] The present invention relates to a management method for managing the electrical power supply for electrically supplying electrical equipment of a crane via a main power supply source such as a main power grid (or grid) and a rechargeable auxiliary power supply source such as a battery to the crane via a switching circuit; and to a crane implementing this management method. Background Technology

[0002] The power supplied to cranes by electrical energy is typically limited. Electrical energy may not even be available near the crane, especially during crane installation on a construction site. This is particularly true for automated installation cranes (or self-erecting cranes) designed for small construction or renovation sites, where the available electrical energy at the construction site (which could refer to the main power grid or generator sets) can supply different voltage values ​​at currents of 20A or 32A, such as 400V three-phase voltage and 230V single-phase voltage.

[0003] Therefore, in order to supply power to cranes, crane users are limited by the amount of electrical energy available while considering the crane's minimum electrical energy requirements.

[0004] The cost of providing a sufficient power supply source is proportional to the required power supply, and this cost increases significantly if the crane needs to install a new power grid that can provide a greater power supply or if the crane needs to use a generator set.

[0005] One known solution to limit costs arising from the power supply source of a crane is to reduce the minimum electrical power required for its operation by decreasing the crane's performance, typically by selecting a smaller crane winch that requires less current to operate. In this case, the reduction in performance and productivity for the crane is significant.

[0006] Another solution involves adding a rechargeable backup power source or auxiliary power source to the main power supply to increase the power supplied to the crane.

[0007] Therefore, it is known to implement an electrical power supply management method to electrically supply power to the electrical equipment of a crane from a main power supply source capable of providing main power and a rechargeable auxiliary power supply source capable of providing auxiliary power via a conversion circuit.

[0008] For example, document CN202004500U proposes the use of a rechargeable auxiliary power supply for lifting equipment (such as cranes), in other words, an autonomous power supply with a battery and a converter, and mentions a backup power supply function in case of failure of the main power supply.

[0009] Document CN110963412A also proposes the use of an autonomous power source with batteries and converters, and mentions a hybrid power supply mode in which both the main power supply source and the rechargeable auxiliary power supply source are connected to the crane's electrical equipment to electrically power them.

[0010] These arrangements are satisfactory to such an extent that supplementary power can be supplied and power supply backup can be ensured in the event of a disconnection or failure of the main power supply source.

[0011] However, when the power supply demand of the crane's electrical equipment exceeds the maximum power threshold available from the main power supply source, existing power supply management methods cannot automatically control the power allocation of the main power supply source. Summary of the Invention

[0012] The present invention aims to address all or some of the aforementioned drawbacks.

[0013] The technical problem arising from this invention specifically includes implementing a management method for managing the electrical power supply used to electrically power the electrical equipment of a crane, characterized in that the method includes monitoring the total requested power corresponding to the power requested by all electrical equipment, and monitoring the charging level of a rechargeable auxiliary power supply source; and provides a crane with a simple and economical structure for implementing this management method.

[0014] Therefore, the present invention relates to an electrical power supply management method for electrically supplying power to the electrical equipment of a crane via a conversion circuit from a main power supply source capable of providing main power and a rechargeable auxiliary power supply source capable of providing auxiliary power, according to the aforementioned type. The significant feature is that it includes monitoring the total requested power corresponding to the power requested by all electrical equipment and monitoring the charging level of the rechargeable auxiliary power supply source, and wherein the electrical power management method implements at least the following management modes based on the total requested power and the charging level:

[0015] - Recharge mode, in which the total requested power is zero, and the main power supply is available and connected to the rechargeable auxiliary power supply to recharge it according to its charging level;

[0016] - Hybrid recharge / power supply mode, in which the requested total power is non-zero and the main power supply source is available and connected to the electrical equipment on one hand to supply it with electrical power, and on the other hand to the rechargeable auxiliary power supply source to recharge it according to the charging level;

[0017] -Main power supply mode, in which the total requested power is non-zero and only the main power supply source is connected to the electrical equipment to supply them electrically;

[0018] - A hybrid power supply mode in which the total requested power is non-zero, and both the main power supply source and the rechargeable auxiliary power supply source are connected to the electrical equipment to supply them electrically; and

[0019] - Autonomous power supply mode, in which the total requested power is non-zero, and only rechargeable auxiliary power supply sources are connected to the electrical equipment to electrically supply them according to the charging level.

[0020] For example, the primary power supply source can refer to the main power grid (also known as the grid) and / or generator sets, and the rechargeable auxiliary power supply source can refer to a rechargeable battery or several rechargeable batteries.

[0021] Furthermore, in the management method according to the invention, the electrical equipment is powered by the available maximum power corresponding to the minimum value between the maximum conversion power and the source power, wherein the maximum conversion power corresponds to the maximum power that can be delivered at the output of the conversion circuit, and wherein the source power corresponds to:

[0022] - In hybrid power supply mode, the sum of auxiliary power and main power;

[0023] -Auxiliary power supply mode;

[0024] -In main power supply mode, main power; and

[0025] - In hybrid recharge / power supply mode, the main power is reduced by the recharge power used to recharge the rechargeable auxiliary power supply source;

[0026] Furthermore, the power supply management method is implemented in autonomous power supply mode and hybrid power supply mode to adapt auxiliary power at least according to the charging level, wherein the auxiliary power is less than or equal to the maximum auxiliary power, which corresponds to the maximum power that can be delivered by a rechargeable auxiliary power supply source.

[0027] Therefore, the present invention proposes to adapt the auxiliary power supplied by the rechargeable auxiliary power supply source according to its charging level, thereby enabling improved or even reduced management of electrical energy from this rechargeable auxiliary power supply source.

[0028] Advantageously, the management method is implemented in both hybrid power supply and autonomous power supply modes by selecting a management sub-mode from several management sub-modes, which at least include:

[0029] - Automatic sub-mode, in which the auxiliary power is monitored to correspond to ka times the maximum auxiliary power, where ka is a coefficient less than or equal to 1 and decreases with the charging level until the charging level drops below a low threshold;

[0030] - Economic sub-mode, in which auxiliary power is monitored to correspond to ke times the maximum auxiliary power, where ke is a coefficient below ka and decreases with the charging level until the charging level drops below a low threshold.

[0031] In the described power supply management method, and according to one implementation:

[0032] - In automatic sub-mode, the coefficient ka equals kamax as long as the charging level of the rechargeable auxiliary power supply is above the high threshold; then, when the charging level is between the low and high thresholds, the coefficient ka equals kamin; and finally, when the charging level of the rechargeable auxiliary power supply is below the low threshold, the coefficient ka is zero, where kamax is higher than kamin; and

[0033] - In the economic sub-mode, the coefficient ke is equal to kemax as long as the charging level of the rechargeable auxiliary power supply is above the high threshold. Then, when the charging level of the rechargeable auxiliary power supply is between the low threshold and the high threshold, the coefficient ke is equal to kemin. Finally, when the charging level of the rechargeable auxiliary power supply is below the low threshold, the coefficient ke is zero, where kemax is higher than kemin, kamax is higher than kemax, and kamin is higher than kemin.

[0034] According to one possibility, kamax is included between 0.8 and 1, kamin is included between 0.5 and 0.7, kemax is included between 0.6 and 0.8, and kemin is included between 0.2 and 0.4.

[0035] The low threshold includes 5% to 15% of the charging capacity of the rechargeable auxiliary power supply, and the high threshold includes 40% to 60% of the charging capacity of the rechargeable auxiliary power supply.

[0036] In autonomous power supply mode and in both automatic and economic sub-modes, the power supply management method can automatically switch to standby mode after the charging level of the rechargeable auxiliary power supply source drops below a low threshold. In standby mode, only predefined safety equipment in the electrical equipment is powered to allow the crane to be protected and, for example, placed in a weather vane position.

[0037] In standby mode, auxiliary power can be monitored to match the maximum auxiliary power, so as to power safety equipment while at least protecting the crane.

[0038] According to one possibility, the management sub-mode also includes a limit sub-mode in which the auxiliary power corresponds to the maximum auxiliary power, regardless of the value of the charging level of the rechargeable auxiliary power supply source.

[0039] In the extreme sub-mode, when the charging level of the rechargeable auxiliary power supply drops below a low threshold, only safety equipment can then be powered to allow the crane to be safely protected (or placed in a weathervane state).

[0040] A distribution method can be implemented to allocate the maximum available power across different electrical equipment, regardless of the management mode in hybrid power supply mode, autonomous power supply mode, primary power supply mode, and hybrid recharge / power supply mode.

[0041] According to one possibility, the allocation method includes the step of choosing among the following:

[0042] - Original mode, in which the maximum available power is allocated among the electrical equipment to predefined actuating devices and predefined auxiliary devices, the actuating devices being limited according to the crane configuration; and

[0043] - Optimization mode, in which the maximum available power is allocated to the predefined actuation equipment and also to the auxiliary equipment, but according to the disconnection conditions associated with the auxiliary equipment, the auxiliary equipment is either powered or not powered according to their respective disconnection conditions.

[0044] Therefore, this allocation method proposes to differentiate between the following equipment:

[0045] - Actuating equipment, which is suitable for actuating the movement of a crane or its components, and is particularly used for the assembly / disassembly of cranes and for the movement of loads; and

[0046] - Auxiliary equipment, which is non-actuated equipment, that is, equipment that does not participate in the movement of the crane or its components.

[0047] It is clear that electrical equipment includes actuating equipment and auxiliary equipment.

[0048] The present invention then proposes to select from the following:

[0049] - In the original mode, whenever electrical equipment requires power, the maximum available power is distributed between the actuating equipment and auxiliary equipment, without distinguishing between them; and

[0050] - Optimized mode, in which the maximum available power is allocated to the actuating equipment and also to the auxiliary equipment, but only according to the disconnection condition.

[0051] If the disconnection condition for auxiliary equipment is met, then in optimized mode, this auxiliary equipment will not be electrically powered. Conversely, if the disconnection condition for auxiliary equipment is not met, then in optimized mode, this auxiliary equipment will be electrically powered. Furthermore, in optimized mode, there is no disconnection condition for actuating equipment, therefore, the actuating equipment has priority.

[0052] Actuation equipment may include installation equipment that participates in the installation of the crane by acting on the displacement of (multiple) parts of the crane when the crane is in the installation configuration.

[0053] The actuating equipment may include working equipment that participates in shifting the load when the crane is in working configuration.

[0054] The installation equipment may include at least one of the following: a hydraulic folding / unfolding unit that allows the mast and cantilever to be folded / unfolded, a hydraulic wedging unit that allows the crane to be wedged into the ground, a hydraulic orientation unit that allows the crane base to be oriented, and a hydraulic support unit that allows the actuation of the installation bracket.

[0055] The working equipment may include at least one of the following: a motorized lifting system that allows lifting / lowering of loads, a motorized distribution system that allows load distribution along the cantilever, a motorized orientation system that allows cantilever orientation, a motorized translation system that allows crane translation, and a motorized lifting system that allows pitching and lifting of the cantilever.

[0056] The auxiliary equipment may include at least one of the following systems: a heating system for heating the space of the crane, a ventilation or cooling system for ventilating / cooling the space of the crane; and the disconnection condition depends on at least one environmental parameter as a physical parameter representing the space of the crane.

[0057] Therefore, among the auxiliary equipment, there are one or more system auxiliary equipment that are associated with the crane's (multiple) spaces and will be disconnected or not disconnected in the optimization mode, at least according to the environmental parameters associated with the corresponding spaces.

[0058] Environmental parameters can include the internal temperature of the crane's space.

[0059] According to one possibility, the space of the crane is an electrical cabinet or driver's cab that internally groups all or part of the mechanisms involved in supplying the crane's electrical power.

[0060] The auxiliary equipment may include at least one of the following user auxiliary equipment: a lighting system, an electrical outlet; and the disconnection condition depends on the user's selection of the classification for that user auxiliary equipment or each of the user auxiliary equipment in the following categories:

[0061] - The "Non-essential" category corresponds to the authorization to withhold power to the corresponding user auxiliary equipment in optimized mode in order to benefit the actuating equipment; and

[0062] - The "Necessary" category corresponds to the prohibition of supplying power to the corresponding user auxiliary equipment in optimized mode.

[0063] Therefore, among the auxiliary equipment, there exists user-owned auxiliary equipment, which is divided into two categories: "non-essential" and "essential".

[0064] In optimized mode, the actuating equipment can be powered by actuating power equal to the maximum available power or equal to the maximum available power minus the auxiliary power required to supply power to the auxiliary equipment according to the disconnection condition, and this actuating power is allocated to the actuating equipment according to an allocation scheme selected from the following two allocation schemes:

[0065] - A first embodiment, in which the actuating devices are sequentially activated and thus sequentially powered, such that each actuating device is powered by actuation power when activated; and

[0066] - A second scheme, in which the actuating devices are activated simultaneously and thus powered simultaneously, such that all actuating devices are powered by the actuation power together.

[0067] According to one possibility, multiple priority allocation modes can be stored in the memory, each priority allocation mode being associated with a percentage of actuation power allocation across different actuation devices in the second scheme, and when the second scheme is selected, the management method performs the selection of a priority allocation mode to provide actuation power allocation according to the selected priority allocation mode.

[0068] When the requested total power is non-zero, the following management modes can be automatically implemented:

[0069] - If the primary power source is unavailable, the autonomous power supply mode will be automatically implemented;

[0070] - If the main power supply source is available and if the requested total power is less than the main power, the main power supply mode or the hybrid recharge / power supply mode is automatically implemented based on the charging level of the rechargeable auxiliary power supply source.

[0071] - If the primary power supply source is available and if the requested total power is higher than the primary power, the hybrid power supply mode is automatically implemented.

[0072] The main power supply source can output a single-phase or three-phase main power supply source voltage, such as 230 or 400 volts, and the conversion circuit ensures that the main power supply source voltage is converted into a three-phase power supply voltage.

[0073] The present invention also relates to a crane including electrical equipment electrically powered via a conversion circuit from a main power supply capable of providing main power and a rechargeable auxiliary power supply capable of providing auxiliary power. Notably, the crane includes a unit for monitoring the requested total power corresponding to the power required by all electrical equipment and the charging level of the rechargeable auxiliary power supply, and wherein the unit includes a control / command unit connected to the monitoring unit and the conversion circuit, and configured to implement the management method according to the present invention.

[0074] In a crane, electrical equipment may include safety equipment configured to allow the crane to be protected, i.e., to position the crane in a wind vane position, wherein its boom can rotate freely to align with the wind.

[0075] Electrical equipment may include auxiliary equipment such as heating systems for heating the space of the crane, ventilation or cooling systems for ventilating / cooling the space of the crane, lighting systems, and electrical outlets.

[0076] According to one possibility, the electrical equipment may include actuating equipment, and the actuating equipment includes working equipment that participates in shifting the load when the crane is in a working configuration.

[0077] Actuation equipment may include installation equipment that participates in the installation of the crane (CR) by acting on the displacement of (multiple) parts of the crane when the crane is in an installation configuration.

[0078] The crane may also include a user interface connected to the control / command unit for selecting a management sub-mode among several management sub-modes of the management method described above in hybrid power supply mode, autonomous power supply mode, main power supply mode, and hybrid recharge / power supply mode.

[0079] The conversion circuit can be an AC / AC electrical converter that includes a rectifier and an inverter.

[0080] According to one embodiment, the conversion circuit includes at least one frequency converter.

[0081] The conversion circuit may also include electrical components designed to increase the value of the electrical signal, such as a transformer.

[0082] The monitoring unit can be a microcontroller.

[0083] According to one embodiment, the monitoring unit selects a power supply source from the main power supply source and a rechargeable auxiliary power supply source based on the opening / closing of the electrical switch.

[0084] The power supply voltage can have an effective value of 230V, and the three-phase power supply voltage can have an effective value of, for example, 400V.

[0085] In a particular embodiment of the crane, the electrical equipment includes actuation equipment and auxiliary equipment defined according to the crane configuration, and a control / command unit is configured to implement the allocation method described above. The control / command unit is connected on one hand to an interface that allows selection between a primary mode and an optimized mode, and on the other hand to an electrical circuit that connects a main power supply source and a rechargeable auxiliary power source to the electrical equipment to control the allocation of maximum available power according to the mode selected from the primary mode and the optimized mode. Attached Figure Description

[0086] The invention will be better understood through the following detailed description disclosed in conjunction with the accompanying drawings, in which:

[0087] Figure 1 It is a schematic representation of a power supply management mode (called the main power supply mode) that supplies power to the electrical equipment of a crane in an electrical manner.

[0088] Figure 2 This is a schematic representation of a second power supply management mode (called hybrid mode) that electrically supplies power to the electrical equipment of a crane.

[0089] Figure 3 This is a schematic representation of a third power supply management mode (called autonomous mode) that electrically supplies power to the electrical equipment of a crane.

[0090] Figure 4 This is a schematic representation of a fourth power supply management mode (referred to as hybrid recharge / power supply mode) that electrically supplies power to the electrical equipment of a crane.

[0091] Figure 5 This is a schematic representation of the fifth power supply management mode (called recharge mode) that electrically supplies power to the electrical equipment of a crane.

[0092] Figure 6 This is a flowchart illustrating the different steps to be performed when implementing a management method for managing the electrical power supply to the electrical equipment of a crane.

[0093] Figure 7 This is a flowchart illustrating the different steps to be performed when implementing a method for distributing electrical power to the electrical equipment of a crane in an electrically powered manner.

[0094] Figure 8 This is a block diagram showing the switching circuit that connects the main power supply source and the rechargeable auxiliary power supply source to the electrical equipment of the crane. Detailed Implementation

[0095] In the following detailed description of the above-defined figures, the same elements or elements performing the same function may retain the same reference numerals in order to simplify the understanding of the invention.

[0096] The first part of the following description relates to an implementation of a "power management" method for managing the electrical power supply for electrically supplying power to the electrical equipment 9 of the crane CR via a switching circuit Q from two power supply sources:

[0097] - A primary power source (PRIM) capable of providing the main power of PRPOW, such as the power grid and / or generating units, and

[0098] - A rechargeable auxiliary power supply source (SEC) capable of providing auxiliary power SECPOW, such as one or more rechargeable batteries.

[0099] Figure 6 The implementation of the steps of this management method, "power management," is shown, and Figures 1 to 5 Its management model is shown.

[0100] This management method, "power management," implements two monitoring steps:

[0101] - Monitor the requested total power RGPOW, which corresponds to the requested power of all electrical equipment 9 of the crane CR, and

[0102] - Monitor the charging level CL of the rechargeable auxiliary power supply source SEC.

[0103] Furthermore, based on the requested total power RGPOW and charging level CL, this "power management" management method implements at least the following management modes:

[0104] - Figure 5The recharge mode RECHMOD shown in the figure is in which the requested total power RGPOW is zero, and the main power supply source PRIM is available and connected to the rechargeable auxiliary power supply source SEC to recharge it according to its charging level CL.

[0105] - Figure 4 The hybrid recharge / power supply mode MIXMOD shown in the figure is in which the requested total power RGPOW is non-zero, and the main power supply source PRIM is available and connected on one hand to the electrical equipment 9 of the crane CR to supply it electrically, and on the other hand to the rechargeable auxiliary power supply source SEC to recharge it according to the charging level CL.

[0106] - Figure 1 The main power supply mode MAINMOD is presented in which the requested total power RGPOW is non-zero, and only the main power supply source PRIM is connected to the electrical equipment 9 of the crane CR to supply them electrically.

[0107] - Figure 2 The hybrid power supply mode HYBMOD shown in the figure is in which the requested total power RGPOW is non-zero, and both the main power supply source PRIM and the rechargeable auxiliary power supply source SEC are connected to the electrical equipment 9 of the crane CR to electrically power them; and

[0108] - Figure 3 The autonomous power supply mode AUTOMOD is shown in the figure. In this autonomous power supply mode, the required total power RGPOW is non-zero, and only the rechargeable auxiliary power supply source SEC is connected to the electrical equipment 9 of the crane CR to electrically supply them according to (or depending on) the charging level CL.

[0109] In the management method "power management", the electrical equipment 9 is powered by the available maximum power PMAX, which corresponds to the minimum between the maximum conversion power PCONV and the source power PS, where the maximum conversion power PCONV corresponds to the maximum power that can be delivered at the output of the conversion circuit Q.

[0110] The source power PS depends on the management mode, and it corresponds to:

[0111] - Figure 2 In the hybrid power supply mode HYBMOD, the sum of auxiliary power SECPOW and main power PRPOW;

[0112] - Figure 3 In the autonomous power supply mode AUTOMOD, the auxiliary power is SECPOW;

[0113] - Figure 1 In the MAINMOD main power supply mode, the main power is PRPOW; and

[0114] -exist Figure 4 In the MIXMOD hybrid recharge / power supply mode, the main power PRPOW is reduced by the recharge power PCH used to recharge the rechargeable auxiliary power supply source SEC.

[0115] Furthermore, the management method "power management" implements at least according to the charging level CL to adapt the auxiliary power SECPOW under the autonomous power supply mode AUTOMOD and the hybrid power supply mode HYBMOD, wherein the auxiliary power SECPOW is less than or equal to the maximum auxiliary power SECPOWMAX, which corresponds to the maximum power that can be delivered by the rechargeable auxiliary power supply source SEC.

[0116] Therefore, and referring to Figure 6 The power management method begins with the step of selecting power supply C1 or the "Power Supply" step, during which a rechargeable auxiliary source SEC is selected or deselected to supply power to the electrical equipment 9 of the crane CR. In other words, this power supply step C1 is an operation of power selection with or without a rechargeable auxiliary source SEC. Therefore, at the end of the power supply step C1, the rechargeable auxiliary source SEC:

[0117] - Electrical equipment 9 connected to the crane CR to participate in their power supply, which results in either a hybrid power supply mode HYBMOD or an autonomous power supply mode AUTOMOD;

[0118] - Alternatively, disconnect the electrical equipment 9 from the crane CR so as not to participate in their power supply, which results in the main power supply mode MAINMOD or the hybrid recharge / power supply mode MMEXT.

[0119] If the rechargeable auxiliary source SEC is disconnected at the end of power supply step C1, the main power supply mode MAINMOD or the hybrid recharge / power supply mode MIXMOD is selected, followed by step F1 or the "Power Allocation" step to initiate the allocation method "Power Allocation" (described below) for allocating the available maximum power PMAX. As a reminder, the available maximum power PMAX corresponds to:

[0120] - Under MAINMOD main power supply mode, at least between the maximum conversion power PCONV and the main power PRPOW; and

[0121] - In the hybrid recharge / power supply mode MIXMOD, at least between the maximum conversion power PCONV and the main power PRPOW minus the recharge power PCH.

[0122] However, if a rechargeable auxiliary source SEC is connected at the end of the power supply step C1 (that is, the power supply will use the rechargeable auxiliary source SEC), then the next step is to perform the selection mode C2, or “mode selection” step, which involves selecting between the hybrid power supply mode HYBMOD and the autonomous power supply mode AUTOMOD.

[0123] This "Power Supply" step C1 is followed by this mode selection step C2, thus leading to the selection of the management mode. These selection steps C1 and C2 can operate automatically for management mode selection based on various parameters, particularly the requested total power RGPOW, the availability of the primary power supply source PRIM, and the primary power PRPOW.

[0124] Therefore, when the requested total power RGPOW is non-zero, the following management modes can be implemented automatically or selected (during two consecutive selection steps C1 and C2):

[0125] - If the primary power supply source PRIM is unavailable, the autonomous power supply mode AUTOMOD is automatically implemented (or selected).

[0126] - If the main power supply source PRIM is available and if the requested total power RGPOW is less than the main power PRPOW, then the main power supply mode MAINMOD or the hybrid recharge / power supply mode MIXMOD is automatically implemented (or selected) based on the charging level CL of the rechargeable auxiliary power supply source SEC.

[0127] - If the primary power supply source PRIM is available and if the requested total power RGPOW is greater than the primary power PRPOW, then the hybrid power supply mode HYBMOD is automatically implemented (or selected).

[0128] Following mode selection step C2, the management method "Power Management" selects a management sub-mode from several management sub-modes under both the Hybrid Power Supply Mode (HYBMOD) and the Autonomous Power Supply Mode (AUTOMOD). These sub-modes include at least the following:

[0129] - Automatic sub-mode "AUTO", in which the auxiliary power SECPOW is controlled to be a multiple of the maximum auxiliary power SECPOWMAX, where ka is a coefficient less than or equal to 1 and decreases with the charging level CL until the charging level CL drops below the low threshold LOW;

[0130] - Economy sub-mode "ECO", in which the auxiliary power SECPOW is controlled to be ke times the auxiliary maximum power SECPOWMAX, where ke is a coefficient less than ka and decreases with the charging level CL until the charging level CL drops below the low threshold LOW;

[0131] - Extreme sub-mode "EXTR", in which the auxiliary power SECPOW corresponds to the maximum auxiliary power SECPOWMAX, regardless of the charging level CL of the rechargeable auxiliary power supply source SEC.

[0132] The low threshold (LOW) can be included between 5% and 15% of the charging capacity of the rechargeable auxiliary power supply source (SEC), and the high threshold (HIGH) can be included between 40% and 60% of the charging capacity of the rechargeable auxiliary power supply source (SEC).

[0133] refer to Figure 6 If the power supply mode selected during mode selection step C2 is the autonomous power supply mode AUTOMOD, then the sub-mode selection step C3, or the "sub-mode selection" step, is performed, in which the user selects between the automatic sub-mode "AUTO", the economic sub-mode "ECO", and the extreme sub-mode "EXTR".

[0134] If the sub-mode selected during sub-mode selection step C3 is the automatic sub-mode "AUTO", then step C3-1, or "Charging Level Control" step, is executed, during which the charging level CL of the rechargeable auxiliary power supply source SEC is measured and compared with the low threshold LOW and the high threshold HIGH.

[0135] If, during the charging level control step C3-1, the charging level CL of the rechargeable auxiliary power supply source SEC is lower than the low threshold LOW, then step S3-1 is executed, or step "KA=0", which sets the coefficient ka to zero, making the auxiliary power SECPOW zero. In other words, if the charging level CL is less than 5% to 15% of the charging capacity, the rechargeable auxiliary power supply source SEC does not provide power. At the end of this step S3-1, the management method "Power Management" automatically switches to... Figure 6 The standby mode is represented by "standby".

[0136] If, during the charging level control step C3-1, the charging level CL of the rechargeable auxiliary power supply source SEC falls between the low threshold LOW and the high threshold HIGH, then step S3-2, or step “KA = KAMIN,” is executed, which sets the coefficient ka to the value kamin, where kamin falls between 0.5 and 0.7. In other words, and for example, if the battery's charging level CL is 30% of its charging capacity, then the provided auxiliary power SECPOW is equal to kamin times the auxiliary maximum power SECPOWMAX, i.e., SECPOW = kamin.SECCPOWMAX. This step S3-2 is followed by step F3-2, or the “power allocation” step, which implements the allocation method “power allocation” for allocating the available maximum power PMAX, where the available maximum power PMAX corresponds to the minimum between the maximum conversion power PCONV and the source power PS, which, in this automatic sub-mode “AUTO” of the automatic power supply mode AUTOMOD, is equal to the auxiliary power SECPOW, which is equal to kamin.SECCPOWMAX. These steps S3-2 and F3-2 are performed as long as the charging level CL is between the low threshold LOW and the high threshold HIGH, and step S3-1 is performed if the charging level CL drops below the low threshold LOW.

[0137] If, during the charging level control step C3-1, the charging level CL of the rechargeable auxiliary power supply source SEC is greater than the high threshold HIGH, then step S3-3, or step “KA = KAMAX”, is executed, which sets the coefficient ka to the value kamax, where kamax is greater than kamin, and is included, for example, between 0.8 and 1. In other words, and for example, if the battery's charging level CL is 90% of its charging capacity, then the provided auxiliary power SECPOW is equal to kamax times the auxiliary maximum power SECPOWMAX, i.e., SECPOW = kamax.SECCPOWMAX. This step S3-3 is followed by step F3-3, or the “power allocation” step, which implements the allocation method “power allocation” for allocating the available maximum power PMAX, where the available maximum power PMAX corresponds to the minimum between the maximum conversion power PCONV and the source power PS, which, in this automatic sub-mode AUTO of the automatic power supply mode AUTOMOD, is equal to the auxiliary power SECPOW, which is equal to kamin.SECCPOWMAX. These steps S3-3 and F3-3 are executed as long as the charging level CL is above the high threshold HIGH, and steps S3-2 and F3-2 are executed if the charging level CL drops below the high threshold HIGH.

[0138] If the sub-mode selected during sub-mode selection step C3 is the economic sub-mode "ECO", then step C3-2, or "Charging Level Control" step, is executed, during which the charging level CL of the rechargeable auxiliary power supply source SEC is measured and compared with the low threshold LOW and the high threshold HIGH.

[0139] If, during the charging level control step C3-2, the charging level CL of the rechargeable auxiliary power supply source SEC falls below the low threshold LOW, then step S3-4 is executed, or step "KE=0", which sets the coefficient ke to zero, making the auxiliary power SECPOW zero. In other words, if the charging level CL is less than 5% to 15% of the charging capacity, the rechargeable auxiliary power supply source SEC does not provide power. At the end of this step S3-4, the "Power Management" method automatically switches to... Figure 6 The standby mode is represented by "standby".

[0140] Therefore, in the autonomous power supply mode AUTOMOD, and regardless of whether it is in the automatic sub-mode "AUTO" or the economic sub-mode "ECO", after the charging level CL of the rechargeable auxiliary power supply source SEC drops below the low threshold LOW, the management method "Power Management" automatically switches to standby mode "Standby". In this standby mode "Standby", only the predetermined safety equipment in the crane CR is powered to allow the crane CR to be safely protected, and for example, placed in a wind vane state. In standby mode "Standby", the auxiliary power SECPOW can be controlled to correspond to the maximum auxiliary power SECPOWMAX, so that power is supplied to this safety equipment at least when the crane CR is safely protected, i.e., when it is placed in a wind vane state.

[0141] Such safety equipment may include, for example, equipment that would allow the cantilever to be raised before its directional release, so that it can rotate freely with the wind, while providing a reduced turning radius, and then the cantilever is described as being placed in a wind vane state.

[0142] If, during the charging level control step C3-2, the charging level CL of the rechargeable auxiliary power supply source SEC falls between the low threshold LOW and the high threshold HIGH, then step S3-5 or step "KE=KEMIN" is executed, which sets the coefficient ke to the value kemin, which falls between 0.2 and 0.4. In other words, and for example, if the battery's charging level CL is 30% of its charging capacity, then the provided auxiliary power SECPOW is equal to kemin times the maximum auxiliary power SECPOWMAX, i.e., SECPOW = kemin.SECCPOWMAX. This step S3-5 is followed by step F3-5, or the "Power Allocation" step, which implements the allocation method "Power Allocation" for allocating the available maximum power PMAX, where the available maximum power PMAX corresponds to the minimum between the maximum conversion power PCONV and the source power, which, in this economic sub-mode "ECO" of the automatic power supply mode AUTOMOD, is equal to the auxiliary power SECPOW, which is equal to kemin.SECCPOWMAX. These steps S3-5 and F3-5 are performed as long as the charging level CL is between the low threshold LOW and the high threshold HIGH, and step S3-4 is performed if the charging level CL drops below the low threshold LOW.

[0143] If, during the charging level control step C3-2, the charging level CL of the rechargeable auxiliary power supply source SEC is greater than the high threshold HIGH, then step S3-6, or step "KE = KEMAX", is executed. This step sets the coefficient ke to the value kemax, which is greater than kemin, and kemax is included, for example, between 0.6 and 0.8. In other words, and for example, if the battery's charging level CL is 90% of its capacity, then the auxiliary power SECPOW is equal to kemax times the auxiliary maximum power SECPOWMAX, i.e., SECPOW = kemax.SECCPOWMAX. This step S3-6 is followed by step F3-6, or the "power allocation" step, which implements the allocation method "power allocation" for allocating the available maximum power PMAX, where the available maximum power PMAX corresponds to the minimum between the maximum conversion power PCONV and the source power. In this economic sub-mode "ECO" of the automatic power supply mode AUTOMOD, the source power is equal to the auxiliary power SECPOW, which is equal to kemax.SECCPOWMAX. These steps S3-6 and F3-6 are executed as long as the charging level CL is above the high threshold HIGH, and steps S3-5 and F3-5 are executed if the charging level CL drops below the high threshold HIGH.

[0144] In principle, the value of kemax is greater than the value of kemin, and kamax is greater than kemax, and kamin is greater than kemin.

[0145] If the submode selected during submode selection step C3 is the extreme submode "EXTR", then step F3-0 or the "Power Allocation" step is executed. This step implements the allocation method "Power Allocation" for allocating the available maximum power PMAX, where the available maximum power PMAX corresponds to the minimum between the maximum conversion power PCONV and the source power. In this extreme submode "EXTR" of the automatic power supply mode AUTOMOD, the source power is equal to the auxiliary power SECPOW, which is equal to SECPOWMAX.

[0146] According to one possibility, in the extreme sub-mode "EXTR" in step F3-0, when the charging level CL of the rechargeable auxiliary power supply source SEC drops below the low threshold LOW, the method "power management" automatically switches to the aforementioned standby mode "standby", during which only the safety equipment of the crane CR is powered to allow the crane CR to be safely protected.

[0147] refer to Figure 6 If the power supply mode selected during mode selection step C2 is the hybrid power supply mode HYBMOD, then sub-mode selection step C4 is executed, in which the user selects between the automatic sub-mode "AUTO", the economy sub-mode "ECO", and the extreme sub-mode "EXTR".

[0148] If the sub-mode selected during sub-mode selection step C4 is the automatic sub-mode "AUTO", then the charging level control step C4-1, or the "charging level control" step, is executed. During this step, the charging level CL of the rechargeable auxiliary power supply source SEC is measured and compared with the low threshold LOW and the high threshold HIGH.

[0149] If, during the charging level control step C4-1, the charging level CL of the rechargeable auxiliary power supply source SEC is below the low threshold LOW, then step S4-1, or step "KA=0", is executed, which sets the coefficient ka to zero, making the auxiliary power SECPOW zero. In other words, if the charging level CL is less than 5% to 15% of the charging capacity, the rechargeable auxiliary power supply source SEC does not provide any power, and therefore the power supply source PS is entirely provided by the main power supply source PRIM. This step S4-1 is followed by step F4-1, or the "power allocation" step, which implements the allocation method "power allocation" for allocating the available maximum power PMAX, where the available maximum power PMAX corresponds to the minimum between the maximum conversion power PCONV and the source power PS. In this automatic sub-mode "AUTO" of the hybrid power supply mode HYBMOD, the source power PS is equal to the main power PRPOW, i.e., PS = PRPOW.

[0150] If, during the charging level control step C4-1, the charging level CL of the rechargeable auxiliary power supply source SEC falls between the low threshold LOW and the high threshold HIGH, then step S4-2, or step “KA = KAMIN,” is executed, which sets the coefficient ka to the value kamin, where kamin falls between 0.5 and 0.7. In other words, and for example, if the battery's charging level CL is 30% of its charging capacity, then the provided auxiliary power SECPOW is equal to kamin times the auxiliary maximum power SECPOWMAX, i.e., SECPOW = kamin.SECCPOWMAX. This step S4-2 is followed by step F4-2, or the “power allocation” step, which implements the allocation method “power allocation” for allocating the available maximum power PMAX, where the available maximum power PMAX corresponds to the minimum between the maximum conversion power PCONV and the source power PS. In this automatic sub-mode “AUTO” of the hybrid power supply mode HYBMOD, the source power PS is equal to the sum of the main power PRPOW and the auxiliary power SECPOW, i.e., PS = PRPOW + kamin.SECCPOWMAX. These steps S4-2 and F4-2 are performed as long as the charging level CL is above the low threshold LOW, and steps S4-1 and F4-1 are performed if the charging level CL drops below the low threshold LOW.

[0151] If, during the charging level control step C4-1, the charging level CL of the rechargeable auxiliary power supply source SEC is greater than the high threshold HIGH, then step S4-3, or step “KA = KAMAX”, is executed, which sets the coefficient ka to the value kamax, where kamax is between 0.8 and 1. In other words, and for example, if the battery’s NC charging level is 90% of its charging capacity, then the provided auxiliary power SECPOW is equal to kamax times the maximum auxiliary power SECPOWMAX, i.e., SECPOW = kamax.SECCPOWMAX. This step S4-3 is followed by step F4-3, or the “power allocation” step, which implements the allocation method “power allocation” for allocating the available maximum power PMAX, where the available maximum power PMAX corresponds to the minimum between the maximum conversion power PCONV and the source power PS. In this automatic sub-mode “AUTO” of the hybrid power supply mode HYBMOD, the source power PS is equal to the sum of the main power PRPOW and the auxiliary power SECPOW, i.e., PS = PRPOW + kamax.SECCPOWMAX. These steps S4-3 and F4-3 are executed as long as the charging level CL is above the high threshold HIGH, and steps S4-2 and F4-2 are executed if the charging level CL drops below the high threshold HIGH.

[0152] If the sub-mode selected during sub-mode selection step C4 is the economic sub-mode "ECO", then step C4-2, or "Charging Level Control" step, is executed, during which the charging level CL of the rechargeable auxiliary power supply source SEC is measured and compared with the low threshold LOW and the high threshold HIGH.

[0153] If, during the charging level control step C4-2, the charging level CL of the rechargeable auxiliary power supply source SEC is below the low threshold LOW, then step S4-4, or step "KE=0", is executed, which sets the coefficient ke to zero, making the auxiliary power SECPOW zero. In other words, if the charging level CL is less than 5% to 15% of the charging capacity, the rechargeable auxiliary power supply source SEC does not provide any power, and therefore the power supply source PS is entirely provided by the main power supply source PRIM. This step S4-4 is followed by step F4-4, or the "power allocation" step, which implements the allocation method "power allocation" for allocating the available maximum power PMAX, where the available maximum power PMAX corresponds to the minimum between the maximum conversion power PCONV and the source power PS. In this economic sub-mode "ECO" of the hybrid power supply mode HYBMOD, the source power PS is equal to the main power PRPOW, i.e., PS = PRPOW.

[0154] If, during the charging level control step C4-2, the charging level CL of the rechargeable auxiliary power supply source SEC falls between the low threshold LOW and the high threshold HIGH, then step S4-5 or step “KE=KEMIN” is executed, which sets the coefficient ke to the value kemin, where kemin falls between 0.2 and 0.4. In other words, and for example, if the battery's charging level CL is 30% of its charging capacity, then the provided auxiliary power SECPOW is equal to kemin times the maximum auxiliary power SECPOWMAX, i.e., SECPOW = kemin.SECCPOWMAX. This step S4-5 is followed by step F4-5 or the “Power Allocation” step, which implements the allocation method “Power Allocation” for allocating the available maximum power PMAX, where the available maximum power PMAX corresponds to the minimum between the maximum conversion power PCONV and the source power PS. In this economic sub-mode “ECO” of the hybrid power supply mode HYBMOD, the source power PS is equal to the sum of the main power PRPOW and the auxiliary power SECPOW, i.e., PS = PRPOW + kemin.SECCPOWMAX. These steps S4-5 and F4-5 are performed as long as the charging level CL is above the low threshold LOW, and steps S4-4 and F4-4 are performed if the charging level CL drops below the low threshold LOW.

[0155] If, during the charging level control step C4-2, the charging level CL of the rechargeable auxiliary power supply source SEC is greater than the high threshold HIGH, then step S4-6, or step "KE = KEMAX", is executed, which sets the coefficient ke to the value kemax, where kemax is between 0.6 and 0.8. In other words, and for example, if the battery's charging level CL is 90% of its charging capacity, then the provided auxiliary power SECPOW is equal to kemax times the auxiliary maximum power SECPOWMAX, i.e., SECPOW = kemax.SECCPOWMAX. This step S4-6 is followed by step F4-6, or the "Power Allocation" step, which implements the allocation method "Power Allocation" for allocating the available maximum power PMAX, where the available maximum power PMAX corresponds to the minimum between the maximum conversion power PCONV and the source power PS. In this economic sub-mode "ECO" of the hybrid power supply mode HYBMOD, the source power PS is equal to the sum of the main power PRPOW and the auxiliary power SECPOW, i.e., PS = PRPOW + kemax.SECCPOWMAX. These steps S4-6 and F4-6 are executed as long as the charging level CL is above the high threshold HIGH, and steps S4-5 and F4-5 are executed if the charging level CL drops below the high threshold HIGH.

[0156] If the submode selected during submode selection step C4 is the extreme submode "EXTR", then step F4-0 or the "Power Allocation" step is executed. This step implements the allocation method "Power Allocation" for allocating the available maximum power PMAX, where the available maximum power PMAX corresponds to the minimum between the maximum conversion power PCONV and the source power PS. In this extreme submode "EXTR" of the hybrid power supply mode HYBMOD, the source power PS is equal to the sum of the main power PRPOW and the auxiliary power SECPOW, and the auxiliary power SECPOW is equal to SECPOWMAX, i.e., PS = PRPOW + SECPOWMAX.

[0157] According to one possibility, in the extreme sub-mode "EXTR" in step F4-0, when the charging level CL of the rechargeable auxiliary power supply source SEC drops below the low threshold LOW, the management method "power management" automatically switches to the aforementioned standby mode "standby". During this period, only the safety equipment of the crane CR is powered to allow the crane CR to be safely protected and, for example, placed in a weather vane state.

[0158] The second part of the following description relates to a power allocation method, "Power Allocation," for distributing the available maximum power PMAX to the various electrical equipment 9 of the crane CR, regardless of the management mode in Hybrid Power Supply Mode (HYBMOD), Autonomous Power Supply Mode (AUTOMOD), Main Power Supply Mode (MAINMOD), and Hybrid Recharge / Power Supply Mode (MIXMOD). The purpose of this power allocation method, "Power Management," is to optimize the distribution of the available maximum power PMAX, particularly when this available maximum power PMAX at full capacity is insufficient to power all the electrical equipment 9 of the crane CR.

[0159] As previously stated, the available maximum power PMAX depends on the management mode, management sub-mode, and the charging level CL of the rechargeable auxiliary power supply source SEC, where the available maximum power PMAX is equal to the minimum between the maximum conversion power PCONV and the source power PS, which is equal to:

[0160] - In step F1, under the main power supply mode MAINMOD, the main power is PRPOW (i.e., PS = PRPOW);

[0161] - In step F1, under the hybrid recharge / power supply mode MIXMOD, the main power PRPOW is reduced by the recharge power PCH (i.e., PS = PRPOW - PCH);

[0162] - In step F3-2, under the automatic sub-mode "AUTO" of the autonomous power supply mode AUTOMOD, the auxiliary power SECPOW is equal to kamin.SECPOWMAX (i.e., PS = SECPOW = kamin.SECPOWMAX);

[0163] - In step F3-3, under the automatic sub-mode "AUTO" of the autonomous power supply mode AUTOMOD, the auxiliary power SECPOW is equal to kamax.SECPOWMAX (i.e., PS = SECPOW = kamax.SECPOWMAX);

[0164] - In step F3-5, under the economic sub-mode "ECO" of the autonomous power supply mode AUTOMOD, the auxiliary power SECPOW is equal to kemin.SECPOWMAX (i.e., PS = SECPOW = kemin.SECPOWMAX);

[0165] - In step F3-6, under the economic sub-mode "ECO" of the autonomous power supply mode AUTOMOD, the auxiliary power SECPOW is equal to kemax.SECPOWMAX (i.e., PS = SECPOW = kemax.SECPOWMAX);

[0166] - In step F3-0, under the extreme sub-mode "EXTR" of the autonomous power supply mode AUTOMOD, the auxiliary power SECPOW is equal to SECPOWMAX (i.e., PS = SECPOW = SECPOWMAX).

[0167] - In step F4-1, under the automatic sub-mode "AUTO" of the hybrid power supply mode HYBMOD, the main power is PRPOW (i.e., PS = PRPOW);

[0168] - In step F4-2, under the automatic sub-mode "AUTO" of the hybrid power supply mode HYBMOD, the sum of the main power PRPOW and the auxiliary power SECPOW, the auxiliary power SECPOW is equal to kamin.SECPOWMAX (i.e. PS = PRPOW + SECPOW = PRPOW + kamin.SECPOWMAX);

[0169] - In step F4-3, under the automatic sub-mode "AUTO" of the hybrid power supply mode HYBMOD, the sum of the main power PRPOW and the auxiliary power SECPOW, the auxiliary power SECPOW is equal to kamax.SECPOWMAX (i.e. PS = PRPOW + SECPOW = PRPOW + kamax.SECPOWMAX);

[0170] - In step F4-4, under the economic sub-mode "ECO" of the hybrid power supply mode HYBMOD, the main power is PRPOW (i.e., PS = PRPOW);

[0171] - In steps F4-5, under the economic sub-mode "ECO" of the hybrid power supply mode HYBMOD, the sum of the main power PRPOW and the auxiliary power SECPOW, the auxiliary power SECPOW is equal to kemin.SECPOWMAX (i.e. PS = PRPOW + SECPOW = PRPOW + kemin.SECPOWMAX);

[0172] - In steps F4-6, under the economic sub-mode "ECO" of the hybrid power supply mode HYBMOD, the sum of the main power PRPOW and the auxiliary power SECPOW, the auxiliary power SECPOW is equal to kemax.SECPOWMAX (i.e. PS = PRPOW + SECPOW = PRPOW + kemax.SECPOWMAX);

[0173] - In step F4-0, under the extreme sub-mode "EXTR" of the hybrid power supply mode HYBMOD, the sum of the main power PRPOW and the auxiliary power SECPOW, the auxiliary power SECPOW is equal to SECPOWMAX (i.e., PS = PRPOW + SECPOW = PRPOW + SECPOWMAX).

[0174] refer to Figure 7 This allocation method, "power allocation," implements an initial selection step T1 or a "mode selection" step, which involves selecting between the following:

[0175] - In the original mode "RAWMOD", the maximum available power PMAX is allocated to the predefined actuation devices 91 and 92 and the predefined auxiliary devices 93 and 94 in the electrical equipment 9 of the crane CR, wherein the actuation devices 91 and 92 are limited according to the crane CR configuration; and

[0176] -Optimization mode "OPTMOD" In this optimization mode, the maximum available power PMAX is allocated to the predefined actuation devices 91 and 92, and also to the auxiliary devices 93 and 94. However, according to the disconnection conditions associated with the auxiliary devices 93 and 94, the auxiliary devices 93 and 94 are either powered or not powered according to their respective disconnection conditions.

[0177] Actuation equipment 91 and 92 may include mounting equipment 91, when the crane CR is in Figure 7 When the installation configuration is specified by "Installation", the installation equipment participates in the installation of the crane CR, and the actuating equipment 91, 92 includes the working equipment 92, when the crane CR is in... Figure 7 When the work configuration is specified by "Work", the work equipment participates in the movement of the loading. It is conceivable that the crane CR does not include the installation equipment 91, for example, in the case of a top slewing crane.

[0178] Mounting equipment 91 may include at least one of the following: a hydraulic folding / unfolding unit that allows the mast and cantilever to fold / unfold; a hydraulic wedging unit that enables the crane to wedge into the ground; a hydraulic orientation unit that allows the orientation of the crane's base; and a hydraulic cantilever crane unit that allows actuation of the mounting hydraulic cantilever crane. Generally, in the mounting configuration, in other words, during the crane's installation / removal phase, either a single mounting equipment 91 (e.g., a hydraulic folding / unfolding unit) is actuated, or several mounting equipment 91s are actuated sequentially and individually, because the installation / removal phases are sequential.

[0179] The working equipment 92 may include at least one of the following: a motorized lifting system 920 that allows lifting / lowering of loads, a motorized distribution system 921 that allows distribution of loads along the cantilever, a motorized orientation system 922 that allows orientation of the cantilever, a motorized translation system that allows translation of the crane, and a motorized lifting system that allows lifting of the tilting cantilever (tilting cantilever). Generally, in a working configuration, in other words, during the phase of load shifting, several working equipment 92s are actuated simultaneously, and sometimes continuously and individually.

[0180] For the remainder of the instruction manual, when in the working configuration, three working devices 92 will be considered for the crane CR, namely:

[0181] - Motorized lifting system 920, which receives an electric lifting power PLIFT less than or equal to the electric power required by the motorized lifting system 920;

[0182] - Motorized distribution system 921, which receives an electrical distribution power PDIST less than or equal to the electrical power required by the motorized distribution system 921;

[0183] - Motorized orientation system 922, which receives a directional electrical power PORIEN less than or equal to the electrical power required by the motorized orientation system 922.

[0184] Auxiliary equipment 93 and 94 are equipment that does not participate in the operation of the load or structural elements of the crane CR during installation and relocation, and these auxiliary equipment 93 and 94 may include one or more system auxiliary equipment 93 and / or one or more user auxiliary equipment 94.

[0185] System auxiliary equipment 93 may include at least one of the following:

[0186] - Heating system 931, used to heat the space 71 in the crane CR, such as the cab;

[0187] - Ventilation or cooling system 932, for ventilating / cooling space 72 in crane CR;

[0188] Furthermore, under the optimized OPTMOD mode, the disconnection conditions of these system auxiliary equipment 931, 932 can depend on at least one environmental parameter, which is a physical parameter representing the spaces 71, 72 of the crane CR. One possibility is that this environmental parameter is the internal space temperature of the crane CR.

[0189] The space 72 of the crane CR can correspond to all or part of the electrical cabinets grouped within the mechanism that participates in the power supply of the crane CR. In other words, under the optimized mode "OPTMOD", the heating of the cab 71 and the ventilation or cooling of this electrical cabinet 72 will depend on the disconnection condition, which is a function of the internal temperature in the cab 71 and the electrical cabinet 72, respectively.

[0190] User accessory 94 may include at least one of the following: lighting system 941, electrical socket 942; and in the optimization mode "OPTMOD", the disconnection condition of the user accessory 94 may depend on the user's selection of the following categories for the user accessory 94 or each of the user accessory 94:

[0191] - The "Non-essential" category corresponds to the authorization to supply power to the corresponding user auxiliary equipment 94 without using the "OPTMOD" optimization mode in order to support actuation equipment 91 and 92; and

[0192] - The "Necessary" category corresponds to the prohibition of supplying power to the corresponding user accessory equipment 94 under the OPTMOD optimization mode.

[0193] refer to Figure 7If the original mode RAWMOD is selected during the initial selection step T1, then the selection configuration step T3, or the "configuration selection" step, is performed, in which the crane configuration is selected between the installation configuration and the working configuration.

[0194] Similarly, if the optimization mode OPTMOD is selected during the initial selection step T1, the selection configuration step T2, or the "configuration selection" step, is performed, in which the crane configuration is selected between the installation configuration and the working configuration.

[0195] If, in the original RAWMOD mode, a mounting configuration is selected during configuration selection step T3, then step E3-1, or the "allocate PMAX" step, is executed. During this step, the maximum available power PMAX is allocated to the actuating devices 91, 92 (here, mounting device 91) and auxiliary devices 93, 94, such that this / the mounting devices 91 receive actuation power PACT, which is equal to the maximum available power PMAX minus the auxiliary power PACC, i.e., PACT = PMAX - PACC. The auxiliary power PACC corresponds to the electrical power requested by the auxiliary devices 93, 94 or the power necessary to supply power to these auxiliary devices 93, 94. This step E3-2 is followed by step E3-3, or the "allocate PACT" step, during which the actuation power PACT is allocated to the mounting devices 91, such that each mounting device 91 receives electrical power less than or equal to this actuation power PACT. If only one mounting device 91 is involved (e.g., a hydraulic folding / unfolding unit), then all the actuation power PACT is allocated to this single mounting device 91.

[0196] However, if, under the original RAWMOD mode, a working configuration is selected during configuration selection step T3, step E3-2, or the "allocate PMAX" step, is executed. During this step, the maximum available power PMAX is allocated to the actuating devices 91, 92 (here, working device 92) and auxiliary devices 93, 94, such that these working devices 92 receive an actuation power PACT equal to the maximum available power PMAX minus the auxiliary power PACC, i.e., PACT = PMAX - PACC. This step E3-2 is followed by step E3-4, or the "allocate PACT" step, during which the actuation power PACT is allocated to each working device 92 such that each working device 92 receives an electrical power less than or equal to this actuation power PACT. In the above embodiment, this actuation power PACT satisfies PLIFT ≤ PACT, PDIST ≤ PACT, and PORIEN ≤ PACT.

[0197] In the optimized OPTMOD mode, actuation devices 91 and 92 can be powered by actuation power PACT, which is:

[0198] - Under the condition that the disconnection condition causes all auxiliary equipment 93 and 94 to be disconnected (and therefore shut down or not powered), the maximum available power PMAX is equal to the power PACT, therefore PACT = PMAX;

[0199] - Or equal to the maximum available power PMAX minus the auxiliary power PACC, therefore PACT = PMAX - PACC, where the auxiliary power PACC corresponds to the electrical power requested by the auxiliary equipment 93, 94 that is not disconnected according to the disconnection condition.

[0200] Therefore, auxiliary equipment 93 and 94 will be divided into:

[0201] - Disconnected auxiliary equipment, which are auxiliary equipment that satisfy their disconnection conditions such that they are not electrically powered; and

[0202] - Undisconnected auxiliary equipment, which are auxiliary equipment that do not meet their disconnection conditions and are therefore not electrically powered.

[0203] For user accessory equipment 94, disconnected accessory equipment refers to accessory equipment for which the "non-essential" category has been selected, while undisconnected accessory equipment refers to accessory equipment for which the "essential" category has been selected.

[0204] Therefore, refer to Figure 7 If the installation configuration is selected during the configuration selection step T2, the step of verifying the disconnection condition T4, or the "disconnection verification" step, is executed, which controls the disconnection conditions associated with various auxiliary equipment 93, 94, resulting in two situations.

[0205] In the first case, if at least one disconnection condition is not met, step E4-1, or the "allocate PMAX" step, is performed. During this step, the maximum available power PMAX is allocated to the actuating devices 91, 92 (which is, in this case, mounting device 91) and the undisconnected auxiliary devices, such that this / these mounting devices 91 receive actuation power PACT equal to the maximum available power PMAX minus the auxiliary power PACC, i.e., PACT = PMAX - PACC. This step E4-1 is followed by step E4-3, or the "allocate PACT" step, during which the actuation power PACT is allocated to the mounting devices 91, such that each mounting device 91 receives electrical power less than or equal to this actuation power PACT. If only one mounting device 91 is involved (e.g., a hydraulic folding / unfolding unit), then all the actuation power PACT is allocated to this single mounting device 91.

[0206] In the second case, if all disconnection conditions are met on the other hand, step E4-2, or the "allocate PMAX" step, is executed. During this step, the maximum available power PMAX is allocated only to actuating devices 91 and 92 (which are, in this case, mounting devices), such that this / the mounting devices 91 receive an actuation power PACT equal to the maximum available power PMAX, i.e., PACT = PMAX. This step E4-2 is followed by step E4-4, or the "allocate PACT" step, during which the actuation power PACT is allocated to the mounting devices 91, such that each mounting device 91 receives an electrical power less than or equal to this maximum available power PMAX. If only one mounting device 91 is involved, then all the maximum available power PMAX is allocated to this single mounting device 91.

[0207] Similarly, if a working configuration is selected during configuration selection step T2, the step of checking disconnection condition T5, or the "disconnection check" step, is executed, which controls the disconnection conditions of different auxiliary equipment 93 and 94, resulting in two scenarios.

[0208] In the first case, if at least one disconnection condition is not met, step E5-1 or the “allocate PMAX” step is performed, during which the maximum available power PMAX is allocated to the actuating equipment 91, 92 (which is the working equipment 92 in this case) and the undisconnected auxiliary equipment, such that this / the working equipment 92 receives the actuation power PACT, which is equal to the maximum available power PMAX minus the auxiliary power PACC, i.e., PACT = PMAX - PACC.

[0209] However, in the second case, if all disconnection conditions are met, step E5-2, or the “allocate PMAX” step, is performed, during which the maximum available power PMAX is allocated only to actuating devices 91, 92 (which are working devices 92 in this case), such that this / the working devices 92 receive an actuation power PACT equal to the maximum available power PMAX, i.e., PACT = PMAX.

[0210] Step E5-1 is followed by the step of selecting option T6, or the "option selection" step. Similarly, step E5-1 is followed by the step of selecting option T7, or the "option selection" step.

[0211] Option selection step T6 or T7 is the step of selecting an allocation scheme for distributing actuation power PACT on different working equipment 92 from the following two allocation schemes:

[0212] - First scheme SCH1, in which the working equipment 92 is activated sequentially and therefore powered sequentially (that is, one after another in a non-combined manner), such that each working equipment 92 is powered by the actuation power PACT when activated; and

[0213] - Second scheme SCH2, in which the working equipment 92 is activated simultaneously and therefore powered simultaneously (that is, in a combined manner, one is powered simultaneously with another), such that all the working equipment 92 are powered together by the actuation power PACT.

[0214] Therefore, if the first scheme SCH1 is selected during scheme selection step T6, step E6-1 or the "allocate PACT" step is executed. During this step, the actuation power PACT (where the remaining PACT = PMAX - PACC) is uniformly and sequentially allocated to each working device 92 upon activation, such that each working device 92 receives electrical power less than or equal to this actuation power PACT upon activation. On the other hand, if the second scheme SCH2 is selected during scheme selection step T6, step E6-2 or the "allocate PACT" step is executed. During this step, the actuation power PACT (where the remaining PACT = PMAX - PACC) is allocated to the different working devices 92 that are activated in combination (and therefore require energy).

[0215] Similarly, if the first scheme SCH1 is selected during scheme selection step T7, step E7-1 or the "allocate PACT" step is executed. During this step, the actuation power PACT (where the remaining PACT = PMAX - PACC) is uniformly and sequentially allocated to each working device 92 upon activation, such that each working device 92 receives electrical power less than or equal to this actuation power PACT upon activation. On the other hand, if the second scheme SCH2 is selected during scheme selection step T7, step E7-2 or the "allocate PACT" step is executed. During this step, the actuation power PACT (where the remaining PACT = PMAX) is allocated to the different working devices 92 that are activated in combination (and therefore require energy).

[0216] According to one possibility, multiple priority allocation patterns are stored in memory, each priority allocation pattern being associated with a percentage of actuation power PACT allocated on different working equipment 92 in a second scheme, for example, associated with the following allocation:

[0217] PACT = PLIFT + PDIS + PORIEN

[0218] Where PLIFT = q1.PACT, PDIS = q2.PACT, and PORIEN = q3.PACT;

[0219] Where q1, q2, and q3 are the allocation amounts or percentages, and q1 + q2 + q3 = 1.

[0220] Therefore, each priority allocation mode is associated with a different allocation amount or percentage q1, q2, and q3. These allocation modes are implemented if the actuation power PACT is less than the sum of the power requested by the working equipment 92. In practice, if the actuation power PACT is greater than or equal to the sum of the power requested by the working equipment 92, then all working equipment 92 can be powered at maximum power.

[0221] Furthermore, the allocation method "power allocation" can implement a step for selecting an allocation mode, or an "allocation mode selection" step, such that step E6-2 or step E7-2 performs the allocation of actuation power PACT to different work equipment 92 according to the selected priority allocation mode.

[0222] The remainder of the description relates to a crane CR, which includes electrical equipment 9, which... Figure 8 The conversion circuit Q presented in the figure is electrically powered by a main power supply source PRIM that can provide the main power PRPOW and a rechargeable auxiliary power supply source SEC that can provide the auxiliary power SECPOW.

[0223] This crane CR includes:

[0224] - Monitoring unit M is used to monitor the requested total power RGPOW, which corresponds to the power requested by all electrical equipment 9; and to monitor the charging level CL of the rechargeable auxiliary power supply source SEC, and

[0225] - The control / command unit CC is connected to the monitoring unit M and the conversion circuit Q, and is configured to implement the previously described... Figure 6 The management method is "power management".

[0226] A rechargeable power interface 22 may exist between the main power supply source PRIM and the rechargeable auxiliary power supply source SEC, designed to adapt the voltage provided by the main power supply source PRIM to the recharge voltage of the rechargeable auxiliary power supply source SEC. When the main power supply source PRIM is connected and the power consumption of the crane CR is lower than the main power PRPOW provided by the main power supply source PRIM, the rechargeable power interface 22 enables recharging of the rechargeable auxiliary power supply source SEC.

[0227] The control / command unit (CC) is also configured for implementation. Figure 7 The allocation method, "power allocation," is used to allocate the maximum available power PMAX across several electrical devices 9 of the crane CR.

[0228] Furthermore, this control / command unit CC is connected on one hand to the user interface INT, which allows selection between the original mode RAWMOD and the optimized mode OPTMOD, and on the other hand to a circuit that connects at least one power supply source to the electrical equipment 9 to control the allocation of the available maximum power PMAX according to the mode selected in the original mode RAWMOD and the optimized mode OPTMOD.

[0229] In one possibility, the main power supply source PRIM delivers a single-phase or three-phase main power supply voltage, such as 230 or 400 volts, and the conversion circuit Q ensures that the main power supply voltage is converted into a three-phase power supply voltage. The three-phase power supply voltage can be obtained by assembling three single-phase converters coupled or synchronized together to generate the three-phase power supply voltage.

[0230] The monitoring unit M can be a microcontroller, and the conversion circuit Q can be an AC / AC converter including a rectifier RECT and an inverter INV, such as... Figure 8 As shown, the rectifier RECT is used to convert the AC voltage of the future autonomous power supply source PRIM into a DC voltage, which can be injected at the input of the boosting electrical component TRANS (e.g., an electrical transformer) designed to boost the electrical signal value, and the inverter INV is used to convert the DC voltage at the output of the boosting component TRANS or another rechargeable auxiliary power supply source SEC into an AC voltage designed to power the electrical interface circuit 20 prior to the user interface INT.

[0231] According to one embodiment, by turning electrical switches 10, 11, and 12 on or off, monitoring unit M selects a power supply source between the main power supply source PRIM and the rechargeable auxiliary power supply source SEC. For example, Figure 8 The electrical switches 10, 11, and 12 shown in the diagram can be designated as electromechanical relays.

[0232] If switch 10 is open, power transmission from the main power supply source PRIM to the electrical equipment 9 of the crane CR is activated. If switch 11 is open, power transmission from the main power supply source PRIM to the rechargeable auxiliary power supply source SEC is activated; in other words, the rechargeable auxiliary power supply source SEC is recharged. If switch 12 is open, power transmission from the rechargeable auxiliary power supply source SEC to the electrical equipment 9 of the crane CR is activated.

[0233] The conversion circuit Q may also include Figure 8 At least one frequency converter not shown, and connected to a rechargeable auxiliary power supply (such as Figure 8 The current measuring component is the output current of the shunt (not shown in the text).

[0234] The crane CR also includes a user interface INT connected to the control command unit CC, to:

[0235] - Select a management sub-mode from the previously described management sub-modes, namely the automatic sub-mode "AUTO", the economic sub-mode "ECO", and the extreme sub-mode "EXTR";

[0236] - Choose between the original mode "RAWMOD" and the optimized mode "OPTMOD";

[0237] - Select the category for user accessory equipment 94 from the "Non-essential" and "Essential" categories;

[0238] - Select an allocation scheme from the first scheme SCH1 and the second scheme SCH2;

[0239] - Select a priority allocation mode from the priority allocation modes stored in memory.

[0240] The control command unit CC can be connected to the monitoring unit M via the communication bus 15, so that the control command unit CC can permanently receive information about the power supply from the monitoring unit M, such as the input voltage of the rectifier RECT or even the output voltage of the inverter INV, so that the control command unit CC can adjust the parameters of the conversion circuit Q, such as turning on or off the electrical switches 10, 11, 12.

[0241] The control command unit CC can also receive from the monitoring unit M the power supply mode implemented by the power supply management method "power management" or the value of another main power supply voltage.

[0242] The control command unit CC can transmit the main power PRPOW, which is input by the user in the user interface INT, to the monitoring unit M, and the monitoring unit M can use the main power to calculate the available maximum power PMAX.

[0243] In addition, according to one embodiment, the control command unit CC can find the power supply mode implemented by the power supply management method "power management" based on the state of electrical switches 10, 11, 12 or based on the main voltage value sent by the monitoring unit M via the communication bus 15.

[0244] According to one possibility, the control command unit CC first calculates the available maximum power PMAX based on the power supply(s) providing electrical power and the implemented power supply mode, and then the control command unit CC manages the allocation of the available maximum power PMAX on the different electrical equipment 9 of the crane CR.

[0245] In one possibility, the user of the crane CR, such as the crane CR operator, notifies the main power PRPOW, management sub-mode, and one or more priority allocation modes.

[0246] In one possibility, the control command unit CC instructs the user of the crane CR via the user interface INT on the charging level CL of the rechargeable auxiliary power supply source SEC, the implemented power supply mode, and standby information when the system switches to standby mode.

[0247] The control command unit CC estimates the charge level CL of the rechargeable auxiliary power supply source SEC based on, for example, the recharge and discharge currents of the rechargeable auxiliary power supply source SEC. Therefore, the control command unit CC can know, for example, the battery capacity in Ah or Wh. Calibration can be performed when the rechargeable auxiliary power supply source SEC is fully charged.

Claims

1. A management method for managing the electrical power supply for electrically supplying power to electrical equipment (9) of a crane (CR) via a conversion circuit (Q) from a primary power supply source (PRIM) capable of providing primary power (PRPOW) and a rechargeable auxiliary power supply source (SEC) capable of providing auxiliary power (SECPOW), wherein the management method includes monitoring the requested total power (RGPOW) corresponding to the power requested by all electrical equipment (9) and monitoring the charge level (CL) of the rechargeable auxiliary power supply source (SEC), Furthermore, the management method described herein implements at least the following management modes based on the requested total power (RGPOW) and the charging level (CL): - Recharge Mode (RECHMOD), in which the requested total power (RGPOW) is zero, the primary power supply (PRIM) is available and connected to the rechargeable auxiliary power supply (SEC) to recharge it according to its charge level (CL); - Hybrid recharge / power supply mode (MIXMOD), in which the requested total power (RGPOW) is non-zero and the main power supply source (PRIM) is available and connected to the electrical equipment (9) on one hand to supply it with electrical power, and on the other hand to the rechargeable auxiliary power supply source (SEC) to recharge it according to the charging level (CL); - Main power supply mode (MAINMOD), in which the requested total power (RGPOW) is non-zero and only the main power supply source is connected to the electrical equipment (9) to supply them electrically; - Hybrid power supply mode (HYBMOD), in which the requested total power (RGPOW) is non-zero, and both the primary power supply source (PRIM) and the rechargeable auxiliary power supply source (SEC) are connected to the electrical equipment (9) to supply them electrically; as well as - Autonomous Power Supply Mode (AUTOMOD), in which the requested total power (RGPOW) is non-zero and only the rechargeable auxiliary power supply source (SEC) is connected to the electrical equipment (9) to electrically supply them according to the charging level (CL); The electrical equipment (9) is powered by the available maximum power (PMAX) corresponding to the minimum between the maximum conversion power (PCONV) and the source power (PS), wherein the maximum conversion power (PCONV) corresponds to the maximum power that can be delivered at the output of the conversion circuit (Q), and wherein the source power (PS) corresponds to: - In the hybrid power supply mode (HYBMOD), the sum of the auxiliary power (SECPOW) and the main power (PRPOW); - In the autonomous power supply mode (AUTOMOD), the auxiliary power (SECPOW); - In the main power supply mode (MAINMOD), the main power (PRPOW); and - In the hybrid recharge / power supply mode (MIXMOD), the main power (PRPOW) is reduced by the recharge power (PCH) used to recharge the rechargeable auxiliary power supply (SEC). The management method is implemented in the autonomous power supply mode (AUTOMOD) and the hybrid power supply mode (HYBMOD) to adapt the auxiliary power (SECPOW) according to at least the charging level (CL), wherein the auxiliary power (SECPOW) is less than or equal to the auxiliary maximum power (SECPOWMAX), and the auxiliary maximum power corresponds to the maximum power that can be delivered by the rechargeable auxiliary power supply source (SEC); Furthermore, the management method, under the Hybrid Power Supply Mode (HYBMOD) and the Autonomous Power Supply Mode (AUTOMOD), selects a management sub-mode from multiple management sub-modes, wherein the multiple management sub-modes include at least: - Automatic sub-mode (AUTO), in which the auxiliary power (SECPOW) is monitored to correspond to ka times the auxiliary maximum power (SECPOWMAX), where ka is a coefficient less than or equal to 1 and decreases with the charging level (CL) until the charging level (CL) drops below the low threshold (LOW); - Economy Sub-mode (ECO), in which the auxiliary power (SECPOW) is monitored to correspond to ke times the auxiliary maximum power (SECPOWMAX), where ke is a coefficient below ka and decreases with the charging level (CL) until the charging level (CL) drops below the low threshold (LOW).

2. The management method according to claim 1, wherein: - In the automatic sub-mode (AUTO), the coefficient ka is equal to kamax as long as the charging level (CL) of the rechargeable auxiliary power supply is above the high threshold (HIGH), then the coefficient ka is equal to kamin when the charging level (CL) is between the low threshold (LOW) and the high threshold (HIGH), and finally, the coefficient ka is zero when the charging level (CL) of the rechargeable auxiliary power supply is below the low threshold (LOW), where kamax is higher than kamin; and - In the Economic Sub-mode (ECO), the coefficient ke is equal to kemax as long as the charging level (CL) of the rechargeable auxiliary power supply (SEC) is higher than the high threshold (HIGH). Then, when the charging level (CL) of the rechargeable auxiliary power supply (SEC) is between the low threshold (LOW) and the high threshold (HIGH), the coefficient ke is equal to kemin. Finally, when the charging level (CL) of the rechargeable auxiliary power supply (SEC) is below the low threshold (LOW), the coefficient ke is zero, where kemax is higher than kemin, kamax is higher than kemax, and kamin is higher than kemin.

3. The management method according to claim 2, wherein kamax is between 0.8 and 1, kamin is between 0.5 and 0.7, kemax is between 0.6 and 0.8, and kemin is between 0.2 and 0.

4.

4. The management method according to claim 2, wherein the low threshold (LOW) is between 5% and 15% of the charging capacity of the rechargeable auxiliary power supply (SEC), and the high threshold (HIGH) is between 40% and 60% of the charging capacity of the rechargeable auxiliary power supply (SEC).

5. The management method according to claim 2, wherein in the autonomous power supply mode (AUTOMOD) and whether in the automatic sub-mode (AUTO) or the economic sub-mode (ECO), the management method automatically switches to standby mode after the charging level (CL) of the rechargeable auxiliary power supply source (SEC) drops below the low threshold (LOW), wherein in the standby mode (STANDBY), only the predefined safety equipment among the electrical equipment (9) is powered to allow the crane to be safely protected.

6. The management method according to claim 5, wherein in the standby mode, the auxiliary power (SECPOW) is monitored to match the auxiliary maximum power (SECPOWMAX) so as to supply power to the safety equipment while at least protecting the crane (CR).

7. The management method according to claim 5, wherein the management sub-mode further includes an extreme sub-mode (EXTR), in which the auxiliary power (SECPOW) corresponds to the auxiliary maximum power (SECPOWMAX) and is independent of the value of the charging level (CL) of the rechargeable auxiliary power supply source (SEC).

8. The management method according to claim 7, wherein in the Extreme Sub-mode (EXTR), when the charging level (CL) of the rechargeable auxiliary power supply (SEC) drops below the low threshold (LOW), only the safety equipment is powered to allow the crane to be safely protected.

9. The management method according to claim 1, wherein an allocation method for allocating the maximum available power (PMAX) on different electrical equipment (9) is implemented, regardless of the management mode in the Hybrid Power Supply Mode (HYBMOD), the Autonomous Power Supply Mode (AUTOMOD), the Main Power Supply Mode (MAINMOD), and the Hybrid Recharge / Power Supply Mode (MIXMOD).

10. The management method of claim 9, wherein the allocation method includes the step of selecting among: - Raw mode (RAWMOD), in which the available maximum power (PMAX) is allocated to predefined actuating devices (91, 92) and predefined auxiliary devices (93, 94) in the electrical equipment (9), the actuating devices (91, 92) being defined according to the configuration of the crane (CR); and - Optimized Mode (OPTMOD), in which the available maximum power (PMAX) is allocated to the predefined actuation equipment (91, 92) and also to the auxiliary equipment (93, 94), but the auxiliary equipment (93, 94) is powered or not powered according to the disconnection conditions associated with them.

11. The management method according to claim 10, wherein the actuating equipment (91, 92) includes an installation equipment (91) that, when the crane (CR) is in an installation configuration (Y1), participates in the installation of the crane (CR) by acting on the displacement of one or more parts of the crane (CR).

12. The management method according to claim 11, wherein the installation equipment (91) comprises at least one of the following: a hydraulic folding / unfolding unit that allows folding / unfolding of the mast and cantilever, a hydraulic wedging unit that allows the crane to be wedged into the ground, a hydraulic orientation unit that allows the orientation of the crane's base, and a support hydraulic unit that allows actuation of the mounting bracket.

13. The management method according to claim 12, wherein the actuating equipment (91, 92) includes a working equipment (92) that participates in shifting the load when the crane (CR) is in a working configuration (Y2).

14. The management method according to claim 13, wherein the work equipment (92) comprises at least one of the following: a motorized lifting system (920) that allows lifting / lowering of load, a motorized distribution system (921) that allows distribution of load along the cantilever, a directional motorized system (922) that allows orientation of the cantilever, a translation motorized system that allows translation of the crane, and a motorized lifting system that allows lifting of the pitch cantilever.

15. The management method according to claim 10, wherein the auxiliary equipment (93, 94) comprises at least one of the following system auxiliary equipment (93): a heating system (931) for heating the space (71) of the crane, and a ventilation or cooling system (932) for ventilating / cooling the space (72) of the crane; and The disconnection condition depends on at least one environmental parameter, which is a physical parameter representing the space (71; 72) of the crane (CR).

16. The management method according to claim 15, wherein the environmental parameter is the internal temperature of the space (71; 72) of the crane (CR).

17. The management method according to claim 15, wherein the space (71; 72) of the crane is an electrical cabinet or a driver's cab that internally groups all or part of the mechanisms involved in the power supply of the crane.

18. The management method according to claim 10, wherein the auxiliary equipment (93, 94) includes at least one of the following user auxiliary equipment (94): a lighting system (941), an electrical socket (942); and The disconnection condition depends on the user's choice of a category for the user accessory or each of the user accessories in the following categories: - The "Non-essential" category corresponds to the authorization to not supply power to the corresponding user auxiliary equipment in the optimized mode (OPTMOD) in order to benefit the actuating equipment (91, 92); and - The "Necessary" category corresponds to the prohibition of supplying power to the corresponding user auxiliary equipment under the optimized mode (OPTMOD).

19. The management method according to claim 10, wherein in the optimized mode (OPTMOD), the actuating equipment (91, 92) is powered by actuation power (PACT), which is equal to the available maximum power (PMAX) or equal to the available maximum power (PMAX) minus the auxiliary power (PACC) required to supply power to the auxiliary equipment (93, 94) according to the disconnection condition. And this actuation power (PACT) is allocated to the actuating equipment (91, 92) according to the allocation scheme selected from the following two allocation schemes: - A first embodiment, in which the actuating devices (91, 92) are sequentially activated and thus sequentially powered, such that each actuating device (91, 92) is powered by the actuation power (PACT) when activated; and - A second embodiment, in which the actuating devices (91, 92) are activated simultaneously and thus powered simultaneously, such that all the actuating devices (91, 92) are powered together by the actuation power (PACT).

20. The management method of claim 19, wherein storage is implemented in the memory to store a plurality of priority allocation modes, each priority allocation mode being associated with a percentage of the actuation power (PACT) in the second scheme on different actuation devices (91, 92), and when the second scheme is selected, the management method performs selection of the priority allocation mode to provide the allocation of the actuation power (PACT) according to the selected priority allocation mode.

21. The management method according to claim 1, wherein when the requested total power (RGPOW) is non-zero, the following management mode is automatically implemented: - If the primary power source (PRIM) is unavailable, the autonomous power source mode (AUTOMOD) is automatically implemented. - If the main power supply source (PRIM) is available and if the requested total power (RGPOW) is lower than the main power (PRPOW), the main power supply mode (MAINMOD) or the hybrid recharge / power supply mode (MIXMOD) is automatically implemented based on the charging level (CL) of the rechargeable auxiliary power supply source (SEC). - If the primary power supply source (PRIM) is available and if the requested total power (RGPOW) is higher than the primary power (PRPOW), the hybrid power supply mode (HYBMOD) is automatically implemented.

22. The management method according to claim 1, wherein the main power supply source (PRIM) outputs a single-phase or three-phase main power supply voltage, and the conversion circuit (Q) ensures that the main power supply voltage is converted into a three-phase power supply voltage.

23. A crane (CR) comprising actuation equipment (91, 92) and electrical equipment (9) defined according to a configuration of the crane, the electrical equipment (9) being electrically powered via a switching circuit (Q) from a main power supply (PRIM) capable of providing main power (PRPOW) and a rechargeable auxiliary power supply (SEC) capable of providing auxiliary power (SECPOW), wherein the crane (CR) comprises: - Monitoring unit (M) for monitoring the total requested power (RGPOW) corresponding to the power requested by all electrical equipment (9) and the charging level (CL) of the rechargeable auxiliary power supply (SEC), and - A control / command unit (CC), which is connected to the monitoring unit (M) and the conversion circuit (Q), and is configured to implement the management method according to claim 1.

24. The crane (CR) of claim 23, wherein the electrical equipment (9) includes safety equipment configured to allow the crane (CR) to be safely protected.

25. The crane (CR) of claim 23, wherein the electrical equipment (9) includes actuating equipment (91, 92), and the actuating equipment (91, 92) includes working equipment (92) which participates in shifting the load when the crane is in working configuration.

26. The crane (CR) of claim 25, wherein the actuating equipment (91, 92) includes a mounting equipment (91) that, when the crane (CR) is in a mounting configuration, participates in the mounting of the crane (CR) by acting on the displacement of one or more parts of the crane (CR).

27. The crane (CR) of claim 23 further includes a user interface (INT) connected to the control / command unit (CC) for selecting a management sub-mode among a plurality of management sub-modes of the management method of claim 1 under the hybrid power supply mode (HYBMOD), the autonomous power supply mode (AUTOMOD), the main power supply mode (MAINMOD), and the hybrid recharge / power supply mode (MIXMOD).

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