WO2005036297A1 - Bi-directional dc-dc converter for voltage level adjustment in a hybrid propulsion system - Google Patents

Bi-directional dc-dc converter for voltage level adjustment in a hybrid propulsion system Download PDF

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Publication number
WO2005036297A1
WO2005036297A1 PCT/SI2004/000032 SI2004000032W WO2005036297A1 WO 2005036297 A1 WO2005036297 A1 WO 2005036297A1 SI 2004000032 W SI2004000032 W SI 2004000032W WO 2005036297 A1 WO2005036297 A1 WO 2005036297A1
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WO
WIPO (PCT)
Prior art keywords
converter
supply battery
power switch
link
mode
Prior art date
Application number
PCT/SI2004/000032
Other languages
French (fr)
Inventor
Primoz Bajec
Peter Ursic
Danijel Voncina
Damijan Miljavec
Janez Nastran
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Aet D.O.O.
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Application filed by Aet D.O.O. filed Critical Aet D.O.O.
Publication of WO2005036297A1 publication Critical patent/WO2005036297A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
    • 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
    • H02M3/1582—Buck-boost converters
    • 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
    • H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
    • H02M1/007—Plural converter units in cascade

Definitions

  • the technical field proposed by the invention relates to switched-mode power converters.
  • the patent application represents a bi-directional switched mode DC-DC power converter for the adjustment of voltage levels of a DC link and a supply battery in a hybrid propulsion system, consisting of an electronically commutated electrical machine (BLDC machine) and an internal combustion (IC) engine on a common crankshaft.
  • BLDC machine electronically commutated electrical machine
  • IC internal combustion
  • a BLDC machine serves as an integrated starter-generator and torque booster (ISGtB) in a hybrid propulsion system.
  • ISGtB operates both in a motor and generator operation mode and serves as a starter for an IC engine, generator and also as an additional drive motor that operates in parallel with the IC engine.
  • the additional drive motor is capable of increasing the resultant mechanical torque on the main propulsion crankshaft and of compensating the torque ripple of an IC engine.
  • an ISGtB in all listed operation modes is made possible by use of a control electronic module that ensures the appropriate supply voltage for the BLDC machine, rectifies the induced 3-phase back e.m.f.-s across the BLDC machine stator windings, adjusts the supply battery and the DC-link voltage levels and furthermore enables the bi-directional electric energy flow.
  • the specific operation mode is the start-up of the IC engine. Because of the significantly increased start-up current of the electrical machine the control electronics must provide a low impedance current path between the supply battery and the electrical machine in order to minimize the power losses inside the control electronics and to improve the starting of the IC engine.
  • the content of the patent application will address the innovative topology of the bidirectional switched-mode DC-DC converter for the adjustment of voltage levels of a DC-link and a supply battery as part of the control electronics of the introduced hybrid propulsion system.
  • the suggested topology ensures proper and also optimal operation of the BLDC machine in all listed operation modes at the supply battery voltage of 12 volt, with minimum semiconductor power switch count number, and high overall efficiency, mainly at the start up of the IC engine.
  • the BLDC machine in a function of the integrated starter-generator can be supplied with a special connection of four semiconductor power switches, with the limitation that the voltage levels in the starter operation mode of BLDC machine as different than those in the generator operation mode.
  • the present invention solves the adjustment of the supply battery voltage level and the DC- link voltage level, which further also defines the direction of the electric energy flow, of the BLDC machine in a hybrid propulsion system together with the IC engine on a common crankshaft with the suggested topology and the driving of the DC-DC converter.
  • Fig 1 Block diagram of a control electronic module for supplying the BLDC machine.
  • Fig 2 Schematic of a control electronic module with a designation of the most important semiconductor parts.
  • Fig 3 Schematic of a bi-directional switched-mode DC-DC converter for the adjustment of the supply battery voltage level and the DC-link voltage level.
  • Fig 4 Detailed operation of thae bi-directional switched-mode DC-DC converter in the starter mode of operation of the BLDC machine.
  • a control electronic module (Fig. 1) is based on two subsystems with a common DC link together with a DC-link capacitor (1).
  • the adjustment of a supply battery (2) voltage level and the DC-link voltage level and therefore the definition of energy flow direction are accomplished with a bi-directional switched-mode DC-DC converter (3).
  • a three-phase transistor converter (4) operates as a three-phase inverter in the motor operation mode of the BLDC machine (5) where the DC-link voltage is transformed into six resultant voltage vectors that further induce the magnetic flux vectors, finally forming the rotational magnetic field.
  • the converter (4) operates as a three-phase full-wave rectifier, where the important characteristic is the ratio between the RMS values of the induced back e.m.f.-s across the BLDC machine stator windings and the mean rectified value of the DC-link voltage.
  • the proper operation of the discussed control electronic module is assured by a control-protection logic (6) that controls the operation of a particular subsystem on the basis of measured ISGtB system parameters and user commands by driving the power semiconductor switches.
  • FIG. 2 A more detailed schematic of the control electronic module incorporating the bi-directional switched-mode DC— DC converter is shown in Fig. 2.
  • the three-phase transistor converter (4) is connected to the DC-link in circuit nodes (7) and (8).
  • BLDC machine stator windings (9), (10), (11) are connected to the converter (4) in circuit nodes (12), (13) and (14).
  • the bi-directional switched-mode DC-DC converter (3) (Fig. 3) for the adjustment of the supply battery (2) voltage level and DC-link voltage level consists of three MOSFET power switches (15), (16) in (17), which consist of MOSFET transistors (15T), (16T), (17T) and freewheel diodes (15D), (16D), (17D), and an inductor (18).
  • the components (15), (16), (17) and (18) are connected to enable the operation of the bi-directional switched-mode DC— DC converter as the BUCK converter (active components (15T), (16D) and (18)) and as BOOST converter (active components (17T), (16D) and (18)), respectively.
  • the bi-directional switched-mode DC-DC converter (3) is connected to the DC-link in circuit nodes (7) and (8) and to the supply battery (2) in circuit nodes (19) and (20).
  • the control-protection logic (6) On the basis of the supply battery (2) voltage (measurement module (21)), the DC-link voltage (measurement module (22)), the BLDC machine (5) rotor position (rotor position detector (23)) and user commands (24) the control-protection logic (6) generates the driving signals for diving of the three-phase transistor converter (4) and proposed bi-directional switched-mode DC-DC converter (3) (MOSFET power switches ((15), (16) and (17))).
  • a special operation of the ISGtB in the motor operation mode is the run-up of the IC engine or BLDC machine (5).
  • the MOSFET power switch (17) with the synchronized driving signal on the input Gate (17G), bypasses the bidirectional switched-mode DC-DC converter (3) and therefore establishes the low-impedance connection between the supply battery (2) and the three-phase transistor converter (4), or between the circuit nodes (19) and (7), respectively.
  • the run-up current of the BLDC machine (5) is limited only by the stator winding resistances (in the range of 10 m ⁇ ), therefore the optimal run-up can be achieved only with the low-impedance connection to the supply battery (2).
  • the discussed low-impedance connection is accomplished through the conduction of the power MOSFET transistor (17T) in the reverse direction (direction Source (17S) - Drain (17DR)).
  • the parallel connection of the internal MOSFET power switch freewheel diode (17D) and the reverse conductive MOSFET transistor (17T) is established, with the significant reduction of the resultant parasitic voltage drop on the MOSFET power switch (17) in comparison to the voltage drop in the case when only freewheel diode (17D) conducts.
  • the reduction can - on the basis of estimations and measurement results - reach up to 70%, depending on the characteristics of the used MOSFET power switch.
  • the run— up current and therefore also the run-up maximum torque can be significantly reduced due to the additional parasitic resistance and inductive character of the DC-DC converter.
  • the MOSFET transistor (17T) enables the low-impedance connection between DC-link and supply battery (2) also in the generator operation mode of the BLDC machine (5) (between circuit nodes (19) and (7)). According to the invention the discussed connection is active only in the limited rotational speed range of the BLDC machine (5) where the conversion between DC- link voltage level and the supply battery (2) voltage level is not yet possible due to the limited maximum duty-cycle of the BUCK converter.
  • the MOSFET transistor (17T) is activated by the synchronized driving signal on the input Gate (17G), and the transistor (17T) conducts in the direction Drain (17DR) - Source (17S).

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

A bi-directional switched-mode DC-DC converter (3) for voltage level adjustment in a hybrid propulsion system for enabling the operation of a Brushless DC machine in a very wide range of the voltage ratio between a DC-link voltage and a supply battery (2) voltage. The proposed topology renders it possible to establish the low-impedance connection between the supply battery (2) and a three-phase converter (4), using an additional MOSFET power switch (17), connected to the bi-directional switched -mode DC-DC converter (3) in circuit nodes (19) and (7). With the activation of the MOSFET power switch (17) during the run-up of the Brushless DC machine a significant reduction of the voltage drop between the battery (2) and the DC­link voltage is achieved. The additional MOSFET power switch (17) is also activated in the generator operation mode in the low-rotational speed range, where the conversion of the DC-link voltage to the supply battery (2) voltage is not yet possible due to the limited maximum converter duty-cycle.

Description

BI-DIRECTIONAL SWITCHED-MODE DC-DC CONVERTER FOR VOLTAGE LEVEL ADJUSTMENT IN A HYBRID PROPULSION SYSTEM OF AN ELECTRONICALLY COMMUTATED ELECTRICAL MACHINE AND AN INTERNAL COMBUSTION ENGINE
Object of the Invention The technical field proposed by the invention relates to switched-mode power converters. The patent application represents a bi-directional switched mode DC-DC power converter for the adjustment of voltage levels of a DC link and a supply battery in a hybrid propulsion system, consisting of an electronically commutated electrical machine (BLDC machine) and an internal combustion (IC) engine on a common crankshaft.
A BLDC machine serves as an integrated starter-generator and torque booster (ISGtB) in a hybrid propulsion system. ISGtB operates both in a motor and generator operation mode and serves as a starter for an IC engine, generator and also as an additional drive motor that operates in parallel with the IC engine. The additional drive motor is capable of increasing the resultant mechanical torque on the main propulsion crankshaft and of compensating the torque ripple of an IC engine. The operation of an ISGtB in all listed operation modes is made possible by use of a control electronic module that ensures the appropriate supply voltage for the BLDC machine, rectifies the induced 3-phase back e.m.f.-s across the BLDC machine stator windings, adjusts the supply battery and the DC-link voltage levels and furthermore enables the bi-directional electric energy flow. The specific operation mode is the start-up of the IC engine. Because of the significantly increased start-up current of the electrical machine the control electronics must provide a low impedance current path between the supply battery and the electrical machine in order to minimize the power losses inside the control electronics and to improve the starting of the IC engine.
Technical Problem The content of the patent application will address the innovative topology of the bidirectional switched-mode DC-DC converter for the adjustment of voltage levels of a DC-link and a supply battery as part of the control electronics of the introduced hybrid propulsion system. The suggested topology ensures proper and also optimal operation of the BLDC machine in all listed operation modes at the supply battery voltage of 12 volt, with minimum semiconductor power switch count number, and high overall efficiency, mainly at the start up of the IC engine.
Prior Art Several embodiments of an integrated starter-generator for motorcycles have been discussed and introduced, together with the supporting electronics. The topology of the introduced power electronic equipment mainly depends on the selected electrical machine. In the present patent application, the description and comparison of the known solutions is limited to the hybrid propulsions where rare-earth permanent magnet BLDC machines with outer rotor are incorporated. One of the most important characteristics of the discussed BLDC machine is the linear dependence between the amplitude of the induced back e.m.f. across the stator windings and the rotational speed of the machine. This is the reason why the supply battery voltage level and the DC-link voltage level have to be adjusted in order to achieve the listed operation modes of the BLDC machine at an arbitrary rotational speed of the main crankshaft. The pretentiousness of the adjustment of the quoted voltage levels increases in accordance with the amplitude ratio between the supply battery voltage and the DC— link voltage or, in other words, with the extension of the desired rotational speed range where the ISGtB is expected to operate.
As described in the patent publication EP 1 138 539 A2, the adjustment of the quoted voltage levels is accomplished with the use of the common known BUCK/BOOST DC-DC converter. The main disadvantage of the proposed solution can be noticed in the starter mode of operation of the BLDC machine, where the internal impedance of the BUCK/BOOST DC-DC converter limits the transient dynamics and also the maximum value of the start-up current of the BLDC machine and the start-up torque, respectively. A similar solution is proposed in the patent application WO 02/06497 Al that further leads to the same disadvantages as disclosed in the patent application EP 1 138 539 A2. The solution, introduced in the patent application JP2000316297 incorporates also modifications in the construction of BLDC machine stator phase windings, where the motor and generator stator phase windings are separated and connected in parallel. The separated stator windings are supplied with two separated electronic modules, according to the operation mode of the BLDC machine. Since one of the main goals at the design of modern drives is a simple construction of the electrical machine as well as the power electronic module the complicated design of the BLDC machine does not come into consideration. As described in the patent application GB 2373648 A, the BLDC machine in a function of the integrated starter-generator can be supplied with a special connection of four semiconductor power switches, with the limitation that the voltage levels in the starter operation mode of BLDC machine as different than those in the generator operation mode.
Solution to the Technical Problem The present invention solves the adjustment of the supply battery voltage level and the DC- link voltage level, which further also defines the direction of the electric energy flow, of the BLDC machine in a hybrid propulsion system together with the IC engine on a common crankshaft with the suggested topology and the driving of the DC-DC converter. The present invention will be described in detail with reference to the drawings:
Fig 1 : Block diagram of a control electronic module for supplying the BLDC machine.
Fig 2: Schematic of a control electronic module with a designation of the most important semiconductor parts.
Fig 3: Schematic of a bi-directional switched-mode DC-DC converter for the adjustment of the supply battery voltage level and the DC-link voltage level.
Fig 4: Detailed operation of thae bi-directional switched-mode DC-DC converter in the starter mode of operation of the BLDC machine.
A control electronic module (Fig. 1) is based on two subsystems with a common DC link together with a DC-link capacitor (1). The adjustment of a supply battery (2) voltage level and the DC-link voltage level and therefore the definition of energy flow direction are accomplished with a bi-directional switched-mode DC-DC converter (3). A three-phase transistor converter (4) operates as a three-phase inverter in the motor operation mode of the BLDC machine (5) where the DC-link voltage is transformed into six resultant voltage vectors that further induce the magnetic flux vectors, finally forming the rotational magnetic field. In the generator operation mode of the BLDC machine the converter (4) operates as a three-phase full-wave rectifier, where the important characteristic is the ratio between the RMS values of the induced back e.m.f.-s across the BLDC machine stator windings and the mean rectified value of the DC-link voltage. The proper operation of the discussed control electronic module is assured by a control-protection logic (6) that controls the operation of a particular subsystem on the basis of measured ISGtB system parameters and user commands by driving the power semiconductor switches.
A more detailed schematic of the control electronic module incorporating the bi-directional switched-mode DC— DC converter is shown in Fig. 2. The three-phase transistor converter (4) is connected to the DC-link in circuit nodes (7) and (8). BLDC machine stator windings (9), (10), (11) are connected to the converter (4) in circuit nodes (12), (13) and (14).
The bi-directional switched-mode DC-DC converter (3) (Fig. 3) for the adjustment of the supply battery (2) voltage level and DC-link voltage level consists of three MOSFET power switches (15), (16) in (17), which consist of MOSFET transistors (15T), (16T), (17T) and freewheel diodes (15D), (16D), (17D), and an inductor (18). In order to minimize the power semiconductor part count number, the components (15), (16), (17) and (18) are connected to enable the operation of the bi-directional switched-mode DC— DC converter as the BUCK converter (active components (15T), (16D) and (18)) and as BOOST converter (active components (17T), (16D) and (18)), respectively. Hence it follows that in both operation modes of the bi-directional switched-mode DC-DC converter (3) only a single inductor (18) is needed. The bi-directional switched-mode DC-DC converter (3) is connected to the DC-link in circuit nodes (7) and (8) and to the supply battery (2) in circuit nodes (19) and (20). On the basis of the supply battery (2) voltage (measurement module (21)), the DC-link voltage (measurement module (22)), the BLDC machine (5) rotor position (rotor position detector (23)) and user commands (24) the control-protection logic (6) generates the driving signals for diving of the three-phase transistor converter (4) and proposed bi-directional switched-mode DC-DC converter (3) (MOSFET power switches ((15), (16) and (17))).
A special operation of the ISGtB in the motor operation mode is the run-up of the IC engine or BLDC machine (5). During the run-up of the BLDC machine (5) (Fig. 4) the MOSFET power switch (17), with the synchronized driving signal on the input Gate (17G), bypasses the bidirectional switched-mode DC-DC converter (3) and therefore establishes the low-impedance connection between the supply battery (2) and the three-phase transistor converter (4), or between the circuit nodes (19) and (7), respectively. The run-up current of the BLDC machine (5) is limited only by the stator winding resistances (in the range of 10 mΩ), therefore the optimal run-up can be achieved only with the low-impedance connection to the supply battery (2). h the suggested topology, the discussed low-impedance connection is accomplished through the conduction of the power MOSFET transistor (17T) in the reverse direction (direction Source (17S) - Drain (17DR)). The parallel connection of the internal MOSFET power switch freewheel diode (17D) and the reverse conductive MOSFET transistor (17T) is established, with the significant reduction of the resultant parasitic voltage drop on the MOSFET power switch (17) in comparison to the voltage drop in the case when only freewheel diode (17D) conducts. The reduction can - on the basis of estimations and measurement results - reach up to 70%, depending on the characteristics of the used MOSFET power switch. At the run-up of the BLDC machine (5), as suggested in the patent application EP 1 138 539 A2, the run— up current and therefore also the run-up maximum torque can be significantly reduced due to the additional parasitic resistance and inductive character of the DC-DC converter. The MOSFET transistor (17T) enables the low-impedance connection between DC-link and supply battery (2) also in the generator operation mode of the BLDC machine (5) (between circuit nodes (19) and (7)). According to the invention the discussed connection is active only in the limited rotational speed range of the BLDC machine (5) where the conversion between DC- link voltage level and the supply battery (2) voltage level is not yet possible due to the limited maximum duty-cycle of the BUCK converter. In this case the MOSFET transistor (17T) is activated by the synchronized driving signal on the input Gate (17G), and the transistor (17T) conducts in the direction Drain (17DR) - Source (17S).

Claims

1. Bi-directional switched-mode DC-DC converter (3) for voltage levels adjustment between a supply battery (2) voltage level and a DC-link voltage level, where an inductor (18) is connected to the positive pole of the supply battery (2) with one of its connection leads in a circuit node (19) and to an input Source (15S) of a MOSFET power switch (15) with the other connection lead and to a connection Drain (16DR) of a MOSFET power switch (16), a connection Drain (15DR) of the MOSFET power switch (15) is further connected to the DC- link in a circuit node (7), a connection Source (16S) of the MOSFET power switch (16) is connected to the negative pole of the supply battery (2) in a circuit node (20) and also to a DC-link in the circuit node (8), characterized in that an additional MOSFET power switch (17) is connected with its connection Source (17S) to the positive pole of the supply battery (2) in the circuit node (19) and to the DC-link in the circuit node (7).
2. Procedure of driving of the bi-directional switched-mode DC-DC converter (3) in the motor operation mode of a BLDC machine (5), which establishes the direct low-impedance connection between supply battery (2) and the DC-link or the circuit node (7), respectively, characterized in that the MOSFET power switch (17) is activated through its input connection Gate (17G) during the run-up of the BLDC machine (5).
3. Procedure of driving of the bi-directional switched-mode DC-DC converter (3) in the generator operation mode of the BLDC machine (5), which establishes the direct low- impedance connection between the DC-link or the circuit node (7), respectively, and the supply battery (2), characterized in that the MOSFET power switch (17) is activated through its input connection Gate (17G) in the generator operation mode of the BLDC machine (5) at low BLDC machine (5) rotational speed.
PCT/SI2004/000032 2003-10-10 2004-10-07 Bi-directional dc-dc converter for voltage level adjustment in a hybrid propulsion system WO2005036297A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SI200300258A SI21632A2 (en) 2003-10-10 2003-10-10 Switching dc power rectifier inverter for adapting voltage levels in a hybrid drive of an electronically commutated engine and internal combustion engines
SIP-200300258 2003-10-10

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2915031A1 (en) * 2007-04-16 2008-10-17 Renault Sas ELECTRIC ENERGY EXCHANGE SYSTEM, ESPECIALLY FOR A HYBRID VEHICLE.
CN104054000A (en) * 2012-01-12 2014-09-17 艾里逊变速箱公司 System and method for high voltage cable detection in hybrid vehicles
DE102012208610B4 (en) 2011-06-03 2019-07-04 Ford Global Technologies, Llc Automotive electric drive system with a power converter
DE102018113738A1 (en) * 2018-06-08 2019-12-12 Infineon Technologies Ag Switches for DC converter functionality and reverse polarity protection functionality
CN110995017A (en) * 2019-12-27 2020-04-10 散裂中子源科学中心 High-voltage resonant network energy fluctuation control circuit and control method
DE102019202334A1 (en) * 2019-02-21 2020-08-27 Audi Ag Drive device and method for operating a drive device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5670865A (en) * 1996-08-29 1997-09-23 Hughes Electronics Circuit to improve the transient response of step-down DC to DC converters
US5998976A (en) * 1996-11-08 1999-12-07 Robert Bosch Gmbh Power supply system
EP1138539A2 (en) * 2000-03-29 2001-10-04 Kabushiki Kaisha Toshiba Control device for permanent magnet motor serving as both engine starter and generator in motor vehicle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5670865A (en) * 1996-08-29 1997-09-23 Hughes Electronics Circuit to improve the transient response of step-down DC to DC converters
US5998976A (en) * 1996-11-08 1999-12-07 Robert Bosch Gmbh Power supply system
EP1138539A2 (en) * 2000-03-29 2001-10-04 Kabushiki Kaisha Toshiba Control device for permanent magnet motor serving as both engine starter and generator in motor vehicle

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* Cited by examiner, † Cited by third party
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WO2008142339A2 (en) * 2007-04-16 2008-11-27 Renault S.A.S Electric energy exchange system, in particular for a hybrid vehicle
WO2008142339A3 (en) * 2007-04-16 2009-03-19 Renault Sa Electric energy exchange system, in particular for a hybrid vehicle
JP2010525772A (en) * 2007-04-16 2010-07-22 ルノー・エス・アー・エス Electrical energy exchange system especially for hybrid vehicles
US8179067B2 (en) 2007-04-16 2012-05-15 Renault S.A.S. Electric energy exchange system, in particular for a hybrid vehicle
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US9581635B2 (en) 2012-01-12 2017-02-28 Allison Transmission, Inc. System and method for high voltage cable detection in hybrid vehicles
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CN110995017A (en) * 2019-12-27 2020-04-10 散裂中子源科学中心 High-voltage resonant network energy fluctuation control circuit and control method

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