EP4292207A1 - Procédé de décharge d'au moins une unité de stockage d'énergie électrique d'un circuit - Google Patents
Procédé de décharge d'au moins une unité de stockage d'énergie électrique d'un circuitInfo
- Publication number
- EP4292207A1 EP4292207A1 EP22705375.8A EP22705375A EP4292207A1 EP 4292207 A1 EP4292207 A1 EP 4292207A1 EP 22705375 A EP22705375 A EP 22705375A EP 4292207 A1 EP4292207 A1 EP 4292207A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- electrical
- circuit
- sub
- storage unit
- energy storage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
- H02M1/322—Means for rapidly discharging a capacitor of the converter for protecting electrical components or for preventing electrical shock
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/04—Cutting off the power supply under fault conditions
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of DC power input into DC power output
- H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
- H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
- H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
- H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
- H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/5387—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
- H02M7/53871—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2210/00—Converter types
- B60L2210/40—DC to AC converters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2210/00—Converter types
- B60L2210/40—DC to AC converters
- B60L2210/42—Voltage source inverters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2220/00—Electrical machine types; Structures or applications thereof
- B60L2220/50—Structural details of electrical machines
- B60L2220/54—Windings for different functions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2220/00—Electrical machine types; Structures or applications thereof
- B60L2220/50—Structural details of electrical machines
- B60L2220/56—Structural details of electrical machines with switched windings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Definitions
- the present invention relates to the discharge of at least one electrical energy storage unit of an electrical circuit of a vehicle, for example an automobile.
- This electrical energy storage unit is for example a capacitor or a set of capacitors.
- the electrical circuit also includes:
- a first switching system defining a DC/AC voltage converter and interposed between a first electrical sub-circuit to which the electrical energy storage unit belongs and the electrical winding of the stator of a rotating electrical machine
- the object of the invention is to allow the discharge of such an electrical energy storage unit, whether or not the rotor has an excitation winding to the rotor, and it achieves this, according to one of its aspects, by using a method for discharging at least one electrical energy storage unit of an electrical circuit, in particular a capacitor or a battery, the electrical circuit further comprising:
- a first switching system defining a DC/AC voltage converter and interposed between a first electrical sub-circuit to which the electrical energy storage unit belongs and the electrical winding of the stator of a rotating electrical machine
- At least one of the first switching system, of the second switching system and of the electrical consumer is controlled so as to reduce the voltage at the terminals of the electrical energy storage unit by causing an additional current to flow in the electrical stator winding, or in the second switching system, or in the electrical consumer.
- the first switching system is controlled so as to reduce the voltage at the terminals of the electrical energy storage unit by causing an additional current to flow in the winding electric stator so that the motor torque generated by the electric machine is less than a predefined value.
- the motor torque is for example less than 5 N.m.
- This control of the switching system implements for example a vector control using for example a Clarke or Concordia matrix. This vector control can implement a direct component for the current which generates flux, and not torque.
- the consumer is ordered electricity in such a way that the additional current flows through this consumer.
- the electric consumer is for example an electric supercharger compressor.
- the electric supercharger compressor is, for example, subjected to a low torque due to this current flow, the value of this torque not being able to cause the rotary part of this electric compressor to rotate.
- At least one of the first switching system, of the second switching system and of the electrical consumer can be controlled so as to reduce the voltage across the terminals of the electrical energy storage unit by to circulate an additional current in the electrical stator winding, or in the second switching system, or in the electrical consumer until this voltage across the terminals of the electrical energy storage unit reaches another threshold value predefined.
- This other threshold value can be greater than or equal to 0V, being for example between 24V and 52V.
- the predefined threshold value whose detection causes the flow of the additional current can be between 50V and 60V, being for example equal to 60V. If necessary, the circulation of the additional current can also be conditional on the detection of the exceeding of this threshold value for a predefined duration. This is for example a duration of 40ms for a threshold value of 60V.
- control unit configured to implement the method as defined above.
- the electric machine can be cooled by G water or by G air.
- Another subject of the invention is a transmission system for a vehicle with electric or hybrid propulsion, comprising:
- At least one of the switching systems can implement controllable electronic switches such as galium nitride (GaN), silicon carbide (SiC), or silicon transistors. part of what was stated above in relation to the electronic component still applies to this other aspect of the invention.
- controllable electronic switches such as galium nitride (GaN), silicon carbide (SiC), or silicon transistors. part of what was stated above in relation to the electronic component still applies to this other aspect of the invention.
- FIG. 1 schematically and partially represents a transmission system to which an example of implementation of the invention can be applied
- FIG. 2 schematically shows an example of a rotating electrical machine of the system of Figure 1, bathed in oil
- FIG. 3 schematically shows the electrical circuit of the rotating electrical machine of the transmission system of Figures 1 and 2,
- FIG. 4 shows in the form of a diagram different steps of a method according to an example of implementation of the invention.
- FIG. 5 is a curve representing the evolution of the voltage at the terminals of the electrical energy storage unit when an example of implementation of the method is applied
- the transmission system 1 here comprises a double clutch 6 which can be dry or wet, with discs or lamellae.
- This double clutch has two output shafts 2 and 3 which are here concentric. Each of these shafts defines a gearbox input shaft 4.
- the gearbox 4 comprises, inside an oil-filled casing, a plurality of pinions defining a plurality of speed ratios Rl-Rn .
- Shaft 2 is here associated with odd gear ratios and shaft 3 is associated with even gear ratios.
- the torque at the output of the gearbox 4 is transmitted to the wheels of the vehicle, in order to ensure propulsion of this vehicle.
- the transmission system 1 is hybrid or electric, comprising a rotating electric machine 7 This rotating machine 7 is located inside the housing of the gearbox 4.
- the shaft of the rotating machine 7 is capable of cooperating by meshing with a pinion 8 integral with the input shaft 2 of the gearbox associated with the odd speed ratios, but other positions are possible for the rotating electrical machine 7, for example its meshing with a pinion integral with the input shaft 3 of the gearbox associated with the even gear ratios.
- This rotating electrical machine 7 can form an alternator-starter of the vehicle.
- the rotating electric machine 7 comprises a housing not shown in Figure 2. Inside this housing, it further comprises a shaft 13, a rotor 12 integral in rotation with the shaft 13, and a stator 10 surrounding the rotor 12. The rotational movement of the rotor 12 takes place around an axis X.
- the housing may comprise a front bearing and a rear bearing which are assembled together, and each may have a hollow shape and centrally carry a respective ball bearing for the rotational mounting of the shaft 13.
- the stator 10 comprises a body 21 in the form of a stack of laminations provided with notches, for example of the semi-closed or open type, equipped with notch insulation for mounting the electric winding polyphase of the stator.
- Each phase comprises a winding passing through the notches of the body 21 and forming, with all the phases, a front bun 25a and a rear bun 25b on either side of the body of the stator.
- the windings are for example obtained from a continuous wire covered with enamel or from bar-shaped conductive elements such as pins connected together.
- the electric winding of the stator is for example three-phase, then implementing a star or delta connection, the outputs of which are connected to the electronic power component 9.
- the electric winding of the stator can define a double three-phase system.
- the rotor 12 of FIG. 2 is formed by a stack of sheets, as shown in FIG. 2.
- the number of pairs of poles defined by the rotor 12 can be arbitrary, for example be between three and eight, being for example equal six or eight.
- the machine also comprises sensors for measuring the position of the rotor, not shown in FIG. 2. These sensors are for example three Hall effect sensors interacting with a magnetic target integral in rotation with the rotor, but other sensors are possible such than resolvers.
- the electrical winding of the stator of the rotating electrical machine 7 belongs to an electrical circuit comprising a first switching system 20 defining an inverter/rectifier.
- This first switching system 20 is interposed between the electrical winding of the stator and a first electrical sub-circuit whose nominal voltage is in the example described equal to 48 V.
- the first switching system switching 20 comprises for example several switching arms, each arm implementing two transistors connected in series and separated by a midpoint.
- Each transistor is for example a galium nitride (GaN), silicon carbide (SiC), or silicon transistor.
- the first sub-circuit also comprises in the example described a battery 21 connected to the rest of this first electrical sub-circuit by a disconnection switch 22.
- the first sub-circuit also includes several consumers 23, including for example an electric compressor overfeeding.
- an electrical energy storage unit 25 which is for example formed by a capacitor or by the assembly of several capacitors.
- This electrical energy storage unit 25 has for example a capacity comprised between 3000m F and 4000m F.
- the electrical circuit further comprises a control unit 32, which may be the central computer of the vehicle or be dedicated to all or part of the transmission system 1.
- This control unit 32 communicates via a data network 33, which is for example of the CAN type, with different components of the electrical circuit, as can be seen in Figure 3.
- control unit receives the information that the value of the voltage at the terminals of the electrical energy storage unit 25 exceeds a threshold value, for example between 50V and 60V.
- step 101 the control unit implements one or more solutions making it possible to circulate an additional current in the circuit in order to reduce this value of the voltage at the terminals of the electrical energy storage unit 25 If necessary, step 101 can only be started when the control unit 32 has verified that the disconnect switch 22 is open.
- a first solution may consist in controlling the first switching system 20 so as to cause an additional current to flow in G the electrical winding of the stator.
- This control may consist of a vector control according to a positive sequence component and a quadrature component. The circulation of this current in the electrical winding of the stator leads to the appearance of a motor torque.
- the control can ensure that this motor torque is less than a predefined value.
- the additional current can be distributed between these two systems.
- a second solution which can be added to the first, or be used alternatively, consists during step 101 in controlling the second switching system 25 so that the additional current flows through the latter to supply the second electrical sub-circuit from the first electrical sub-circuit.
- This second solution can be engaged only for voltage values at the terminals of the electrical energy storage unit 25 lower than a given value, for which the DC/DC voltage converter 27 is on. This given value can be between 55 and 65V, in particular between 57V and 63V.
- a third solution which can be combined with the first and/or the second, or be used as an alternative to these previous solutions, consists during step 101 in controlling the electrical consumer 23, which here is an electric compressor supercharging, so that the latter consumes the additional current. Moreover, this control does not cause rotation of the rotary part of the electric supercharger or can cause rotation at a certain speed of this rotary part, for example at 5000 rpm.
- the value of the duration during which step 101 is applied and the value of the additional current flowing during this step 101 can vary according to data such as:
- the invention could alternatively also be implemented, when the electrical circuit is connected to a charging station, by discharging the electrical energy storage unit by causing an additional current to flow in this charging station as an alternative or by complement of an additional current flow in the electrical stator winding, or in the second switching system, or in the electrical consumer.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Control Of Ac Motors In General (AREA)
- Protection Of Static Devices (AREA)
- Rectifiers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2101330A FR3119720B1 (fr) | 2021-02-11 | 2021-02-11 | Composant électronique de détection d’une défaillance d’au moins un interrupteur d’un redresseur pour véhicule |
| PCT/EP2022/051986 WO2022171457A1 (fr) | 2021-02-11 | 2022-01-28 | Procédé de décharge d'au moins une unité de stockage d'énergie électrique d'un circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4292207A1 true EP4292207A1 (fr) | 2023-12-20 |
Family
ID=75539525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22705375.8A Pending EP4292207A1 (fr) | 2021-02-11 | 2022-01-28 | Procédé de décharge d'au moins une unité de stockage d'énergie électrique d'un circuit |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20240051397A1 (fr) |
| EP (1) | EP4292207A1 (fr) |
| CN (1) | CN116830442A (fr) |
| FR (1) | FR3119720B1 (fr) |
| WO (1) | WO2022171457A1 (fr) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3002384B1 (fr) * | 2013-02-21 | 2016-08-19 | Valeo Systemes De Controle Moteur | Architecture electrique pour la conversion d'une tension continue en une tension alternative, et reciproquement |
| WO2015049427A1 (fr) | 2013-10-01 | 2015-04-09 | Valeo Systemes De Controle Moteur | Procédé de décharge d'au moins une unité de stockage d'énergie électrique, notamment un condensateur, d'un circuit électrique |
| JP7236816B2 (ja) * | 2017-07-18 | 2023-03-10 | Ntn株式会社 | 車両用動力装置および発電機付き車輪用軸受装置 |
| JP6985193B2 (ja) * | 2018-03-22 | 2021-12-22 | 日立Astemo株式会社 | 放電制御装置 |
-
2021
- 2021-02-11 FR FR2101330A patent/FR3119720B1/fr active Active
-
2022
- 2022-01-28 US US18/264,796 patent/US20240051397A1/en active Pending
- 2022-01-28 CN CN202280014500.3A patent/CN116830442A/zh active Pending
- 2022-01-28 WO PCT/EP2022/051986 patent/WO2022171457A1/fr not_active Ceased
- 2022-01-28 EP EP22705375.8A patent/EP4292207A1/fr active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022171457A1 (fr) | 2022-08-18 |
| FR3119720A1 (fr) | 2022-08-12 |
| FR3119720B1 (fr) | 2024-03-15 |
| CN116830442A (zh) | 2023-09-29 |
| US20240051397A1 (en) | 2024-02-15 |
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Owner name: VALEO ELECTRIFICATION |