Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
  • F02N11/00—Starting of engines by means of electric motors
  • F02N11/08—Circuits specially adapted for starting of engines
  • F02N11/0814—Circuits specially adapted for starting of engines comprising means for controlling automatic idle-start-stop
  • F02N11/0818—Conditions for starting or stopping the engine or for deactivating the idle-start-stop mode
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M10/00—Secondary cells; Manufacture thereof
  • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
  • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
  • F02N2200/00—Parameters used for control of starting apparatus
  • F02N2200/06—Parameters used for control of starting apparatus said parameters being related to the power supply or driving circuits for the starter
  • F02N2200/061—Battery state of charge [SOC]
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
  • F02N2200/00—Parameters used for control of starting apparatus
  • F02N2200/06—Parameters used for control of starting apparatus said parameters being related to the power supply or driving circuits for the starter
  • F02N2200/062—Battery current
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
  • F02N2200/00—Parameters used for control of starting apparatus
  • F02N2200/06—Parameters used for control of starting apparatus said parameters being related to the power supply or driving circuits for the starter
  • F02N2200/063—Battery voltage
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
  • F02N2200/00—Parameters used for control of starting apparatus
  • F02N2200/06—Parameters used for control of starting apparatus said parameters being related to the power supply or driving circuits for the starter
  • F02N2200/064—Battery temperature
• • 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
  • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
  • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
  • Y02E60/10—Energy storage using batteries
• • 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
  • Y02T10/10—Internal combustion engine [ICE] based vehicles
  • Y02T10/40—Engine management systems

Definitions

• the present invention relates to a method and a device for controlling a motor stop / restart system fitted to a motor vehicle.
• a motor stop / restart system fitted to a motor vehicle.
• the rotating electrical machine capable of operating as an alternator, is also intended to recharge the battery via a regulating device.
• the alternator powers the electrical consumers and charges the battery.
• the battery provides all the electrical energy that the vehicle needs.
• SOC state of charge
• capacity the level of concentration of the electrolyte
• level of concentration of the electrolyte the charging conditions
• temperature the temperature
• internal resistance some parameters depend on the conditions of use.
• Patent FR 2853081 discloses a device for determining an instantaneous state of charge (SOC) of an energy storage battery for a motor vehicle, applied in a battery manager and able to control corrective actions.
• the device is designed to control the shutdown of electrical functions such as a car radio, an air conditioning device or a parking assistance device.
• the device comprises a calculation circuit of an extended Kalman filter receiving input information concerning an initial state of charge of the battery, a voltage measured across the battery and a temperature thereof. This information makes it possible, thanks to the extended Kalman filter, to determine the instantaneous state of charge of the battery during the operation of the vehicle.
• the determination device described in patent FR 2853081 is not suitable for a motor stop / restart system.
• this device results in a complex implementation of an extended Kalman filter.
• this type of device according to the patent FR 2853081 is applicable only for a given battery, hence the need to modify the determination device, and more particularly the Kalman filter, for each battery model. There is therefore a need to know the battery power state reliably, simply, and standard at least for a battery technology, to allow to manage the use of the battery under intelligent and optimal conditions, and also to strengthen the performance of engine stop / restart systems, particularly in terms of respect for the environment.
• the invention aims to meet the aforementioned needs.
• the invention relates to a control method of an engine stop / recovery system fitted to a motor vehicle.
• the control method comprises steps of:
• the energy state information is initialized to a predetermined value when the method controls an authorization to stop the engine stop / restart system.
• the command to authorize the stopping of the engine stop / restart system is characteristic of a sufficient energy state of the energy storage unit.
• the battery can thus be managed simply and reliably by defining in particular fixed thresholds of energy states, these thresholds being associated in particular with controls of the engine stop / restart system.
• the engine stop / restart system is used optimally depending on the energy state of the energy storage unit.
• the risks for example of non-recovery of the engine after a stop, are eliminated.
• the operational safety of the vehicle is thus improved.
• the implementation of the method is simple and standard to a set of different energy storage units.
• the parameter comprises at least one of the following parameters:
• the step of determining the energy state information comprises sub-steps of:
• the state of charge can be determined according to a type of energy storage unit.
• type is meant a set of energy storage units having similar technologies, eg lead acid battery, and different characteristics. These characteristics can be for example the voltage, the current, the capacity of the energy storage unit.
• the step of determining the energy state information comprises sub-steps of: determining a current threshold value as a function of the temperature of the storage unit of energy, and
• the step of determining the energy state information comprises sub-steps of:
• the step of determining the energy state information comprises a substep of comparing the voltage of the energy storage unit with a predetermined voltage threshold value.
• the step of controlling the engine stop / restart system comprises a substep of authorizing a stopping of the engine.
• the sub-step of authorizing an engine stop is performed when the state of charge of the energy storage unit is greater than or equal to the value of predetermined state of charge threshold.
• the sub-step of authorizing a stopping of the motor is carried out when the current of the energy storage unit is less than or equal to the threshold value of determined current.
• This characteristic is advantageous in the case where the energy storage unit is in a so-called charge state.
• the sub-step of authorizing an engine stop is performed when the energy balance of the energy storage unit is greater than or equal to the threshold value. predetermined energy balance.
• the energy balance is initialized to a predetermined value, for example zero.
• the sub-step of authorizing an engine stop is performed when:
• the energy balance of the energy storage unit is greater than or equal to the predetermined energy balance threshold value, and the energy storage unit current is less than or equal to the threshold value of the energy storage unit. determined current.
• the energy balance is initialized to a predetermined value, for example zero.
• the step of controlling the engine stop / restart system comprises a substep of prohibiting a stopping of the engine.
• the sub-step of prohibiting an engine stop is performed when the energy balance of the energy storage unit is less than or equal to the threshold value of predetermined energy balance.
• the sub-step of prohibiting the motor stop can be performed when the voltage of the energy storage unit is less than or equal to a threshold value. predetermined voltage. This feature is interesting in the case where the energy storage unit is in a state of no load.
• the step of controlling the engine stop / restart system has a substep of requesting a restart of the engine.
• this third embodiment makes it possible to ensure the restart of the vehicle following a stop having caused a degradation of the energy state of the vehicle. energy storage unit.
• the sub-step of requesting a restart of the motor is performed when the voltage of the energy storage unit is less than or equal to a predetermined voltage threshold value.
• the substep of requesting a restart of the motor is performed when the energy balance of the energy storage unit is less than or equal to the threshold value of predetermined energy balance.
• the step of controlling the engine stop / restart system comprises a substep of canceling a request to restart the engine.
• the substep of canceling a request to restart the engine is performed when the energy balance of the energy storage unit is greater than or equal to the value of predetermined energy balance threshold.
• the substep of canceling an engine restart request is made when the current of the energy storage unit is less than or equal to the current threshold value determined.
• the step of determining the energy state information of the energy storage unit is preceded by a step of comparing the temperature of the energy storage unit with a predetermined temperature threshold value.
• the step of determining the energy status information of the energy storage unit can be performed when the temperature of the energy storage unit is greater than or equal to the predetermined temperature threshold value.
• control module can control the engine stop / restart system so as to prohibit stopping the engine.
• the step of determining the energy state information of the energy storage unit is preceded by steps of:
• the step of determining the energy status information of the energy storage unit can be performed when the voltage of the energy storage unit is substantially equal to the determined reference voltage.
• control module can control the engine stop / restart system so as to prohibit stopping the engine.
• the invention relates to a device for controlling an engine stop / restart system adapted to equip a motor vehicle, comprising a control module, said control module comprising:
• control module is located at least partially in a control unit and intended to control the engine stop / restart system.
• the means for obtaining at least one parameter representative of a state of a energy storage unit comprises sensors designed to obtain at least one of the following parameters: a temperature of the energy storage unit,
• the invention relates to an engine stop / restart system comprising a rotating electrical machine, a reversible digital analog converter and control means of the control device.
• the rotating electric machine can be an altemo-starter.
• the invention relates to a motor vehicle comprising a motor stop / restart system.
• FIG. 1 shows an overall view of a motor stop / restart system 1 comprising a control module 6 of a control device 5 according to the invention
• FIG. 2 relates to a first stop authorization authorization processing sub-module, of the control module 6 of FIG. 1, activated during a parking phase and during a first start phase, according to a particular embodiment of the method.
• FIG. 3 relates to a first stop authorization authorization processing sub-module, of the control module 6 of FIG. 1, activated during a first start phase, according to another particular embodiment of the method,
• FIG. 4 relates to a motor stop inhibit processing sub-module, of the control module 6 of FIG. 1, activated during a phase of normal operation, according to a particular embodiment of the method,
• FIGS. 5 and 6 relate to an engine stop authorization processing sub-module, of the control module 6 of FIG. 1, activated during a normal operating phase, according to two particular embodiments of the method,
• FIGS. 7 and 8 relate to a motor restart request processing sub-module, of the control module 6 of FIG. 1, activated during a normal operating phase, according to two particular embodiments of the method
• FIGS. and 10 relate to a cancellation processing sub-module request motor restart, the control module 6 of Figure 1, activated during a normal operating phase, according to two particular embodiments of the method.
• FIG. 1 shows an engine stop / restart system 1 comprising a multi-phase reversible rotary electric machine 2, a reversible digital analog converter 3, a control unit 4, and a control device 5.
• the reversible rotary polyphase electrical machine 2 is formed, in this example, by a motor vehicle starter.
• the alternator-starter 2 is capable, in addition to being rotated by a heat engine 9 to produce electrical energy (alternator mode), to transmit a torque to the engine 9 for a start (starter mode).
• the alternator-starter can be used in a regenerative braking type architecture, in order to convert a portion of the mechanical energy from braking into electrical energy.
• the engine stop / restart system may comprise a conventional alternator associated with a starting device, instead of the altemo-starter.
• Altemo-starter 2, converter 3 and an energy storage unit 8 are connected in series.
• the energy storage unit 8 may comprise a conventional battery pack, for example of the lead-acid battery type.
• This battery 8 makes it possible, in addition to supplying the alternator-starter during a starting phase (motor mode), to supply electrical energy to electrical consumers of the vehicle, for example headlamps, a car radio, an air conditioning device. wipers.
• the converter 3 allows bidirectional transfers of electrical energy between the alternator-starter 2 and the battery 8, these transfers being in particular controlled by the control unit 4 connected to the converter.
• the control unit 4 of the engine stop / restart system 1 can be built around a microprocessor.
• the microprocessor 4 controls the converter 3 to take a DC voltage from the battery 8 to supply the starter-starter 2.
• the microprocessor 4 controls the converter 3 to take AC voltages from the alternator-starter 2 to, on the one hand, charge the battery 8, and on the other hand, power the electrical consumers of the vehicle.
• the microprocessor 4 is also connected to a motor control unit 10 capable of managing the heat engine 9.
• the alternator-starter 2 does not deliver current, especially during a stopping phase of the engine stop / restart system 1, the battery 8 must alone meet the electrical needs of the vehicle.
• control device 5 of the engine stop / restart system 1 comprises a control module 6 and sensors 7.
• the control module can be implanted at least partially in the microprocessor.
• control module may be implanted in a means for receiving the sensors, said means being able to be disposed near the battery.
• FIGS. 2 to 1 the operation of the control module 6 according to the invention. More specifically, it is described in detail the control method of the invention implemented in this control module 6.
• FIG. 2 relates to a ST1 first stop engine authorization processing sub-module of the control module 6.
• the parking stage occurs when there appears to be a stop of the engine 9 and a power failure of the vehicle (a key is removed) for a long enough time, for example 2 hours.
• This duration allows the battery 4 to stabilize its energy state, both thermally and electrically.
• control module 6 obtains at step S100 a current delivered by the battery 8, called Ibat in the remainder of the description.
• the current Ibat comes from the sensors 7. It is for example measured using a shunt.
• the current Ibat is then transmitted to a step S101.
• Step S101 performs a comparison calculation between the current Ibat obtained in step S100 and a predetermined current threshold value, called Ic.
• steps S100 and S101 allow, during the parking phase, to control the amount of electrical energy supplied by the battery 8 to the electrical consumers.
• step S101 If the comparison calculation performed in step S101 results in a current Ibat less than or equal to Ic, the control module 6 obtains at steps S102 and S103, respectively the temperature of the battery 8 and a voltage across the battery 8, respectively called Tbat and Ubat in the following description.
• the temperature Tbat obtained in step S102 and the voltage Ubat obtained in step S103 come from the sensors 7.
• the temperature Tbat corresponds to the internal temperature of the battery 8.
• the sensors 7 include a temperature sensor for measuring the ambient temperature of the battery 8, and a means for calculating the internal temperature Tbat for extrapolating said internal temperature Tbat from the ambient temperature.
• a temperature sensor for measuring the ambient temperature of the battery 8
• a means for calculating the internal temperature Tbat for extrapolating said internal temperature Tbat from the ambient temperature it is possible to measure the internal temperature of the battery 8 directly by means of a temperature sensor positioned for example under the battery 8.
• These temperature probes can for example be of the type "NTC” ("Negative Temperature Coefficient", in English), or of the type with negative coefficient resistance.
• the temperature Tbat and the voltage Ubat are then transmitted to a step S104 for determining an energy state information of the battery 8.
• Step S104 comprises a substep S1041 for determining a state of charge of battery 8 as a function of temperature Tbat and voltage Ubat. This state of charge is called SOC in the following description.
• the state of charge SOC is read in a look-up table stored in the control module 6 from the temperature Tbat and the voltage Ubat, this look-up table containing a plurality of state of charge values associated with different temperatures Tbat and Ubat predetermined voltages. These state of charge values are calculated during preliminary tests.
• the determined state of charge SOC is then stored at a substep S1042 in the control module 6.
• the next step, if the parking phase continues, is a step S109 corresponding to a sleep mode.
• This standby mode corresponds to the repetition of steps S100 to S104 during the parking phase.
• the steps S100 to S104 are started, then said steps are repeated, for example 3 times, with a predetermined time interval, for example 30 minutes. Then, it is possible to repeat these steps again, for example 3 times, with a predetermined time interval, for example 24 hours.
• substep S1041 Whenever a state of charge SOC is determined in substep S1041, it is stored in substep S1042 in control module 6.
• step S109 corresponding to the standby mode described above follows step S101.
• Step S105 the control module 6 obtains in a step S105 the temperature Tbat, in the same manner as before, and transmits Tbat to a step S106.
• Step S106 performs a comparison calculation between this temperature Tbat and a predetermined temperature threshold value, called Tth.
• the threshold value Tth is for example of the order of -5 ° C.
• control module 6 terminates the authorization processing sub-module first stop motor ST1 at a step S1 10.
• control module 6 checks in a step S107 if a charge state SOC determined beforehand during a parking phase has been stored, in substeps S1041 and S1042 .
• control module 6 disables the authorization subprocessing module ST1 in step S110.
• control module 6 terminates the first stop engine authorization processing sub-module ST1 in step S1 10.
• steps S105 and S106 can be executed in the different embodiments of the method according to the invention detailed below.
• FIG. 3 relates to another embodiment of a ST2 first stopping authorization processing sub-module of the control module 6.
• This submodule ST2 is activated during the first start phase and deals with the steps S1 12 to S1 19 of the control method to authorize a first stop
• the control module 6 obtains at step S1 12 the temperature Tbat and transmits Tbat at a step S1 13.
• Step S1 13 determines a reference voltage, called Uref, as a function of the temperature Tbat determined in step S1 12.
• the reference voltage Uref is read in a look-up table stored in the control module 6 from the temperature Tbat, this look-up table containing a plurality of values associated with different predetermined temperatures Tbat.
• the control module 6 also obtains in a step S114 the voltage U bat. Then, a step S1 performs a comparison calculation between the voltage Ubat and the reference voltage Uref determined.
• control module 6 deactivates the ST2 first stop authorization processing sub-module at a step S1 19.
• Step S1 17 comprises substeps S1 171 and S1 172.
• the substep S1 171 determines a current threshold value, called Ith, as a function of the temperature Tbat.
• the threshold value Ith is read in a look-up table stored in the control module 6 from the temperature Tbat, this look-up table containing a plurality of values associated with different predetermined temperatures Tbat.
• the current Ith is then transmitted to the substep S1 172 which performs a comparison calculation between the current Ibat and the threshold value Ith determined.
• control module 6 terminates the authorization processing sub-module first stop motor ST2 in step S1 19.
• Step S1 18 comprises a substep S1 181.
• control module 6 includes an authorization processing sub-module.
• Figure 4 relates to an engine stop ban processing sub-module
• control module 6 obtains at a step S120 the current Ibat and transmits it to a step S121 for determining the energy status information of the battery 8.
• Step S121 includes substeps S121 1 and S1212.
• the substep S121 1 determines an energy balance of the battery 8, called
• the energy balance is determined by a sum of a quantity of incoming energy and a quantity of outgoing energy. These amounts of energy correspond to an integration of the current Ibat.
• a coefficient called coefficient of efficiency, can be assigned to at least a quantity of energy.
• the control module 6 then performs a comparison calculation with the substep S1212 between the determined energy balance CB and a predetermined energy balance threshold value CBth2.
• control module 6 deactivates the stopping inhibit processing sub-module ST3 at a step S123.
• Step S122 includes substep S1221.
• FIG. 5 relates to an ST4 engine stop enable processing sub-module of the control module 6.
• the control module 6 obtains at a step S124 the temperature Tbat and transmits it to a step S125 for determining the energy status information of the battery 8.
• the step S125 comprises substeps S1251 and S1252.
• the substep S1251 determines a current threshold value Ith, as a function of the temperature Tbat, the current Ith being read in the same manner as above.
• the control module 6 obtains the current Ibat at a step S126 and transmits it to the substep S1252.
• the substep S1252 performs a comparison calculation between the current Ibat and the threshold value Ith determined.
• step S126 the current Ibat obtained in step S126 is transmitted to a step S127 for determining the energy state information of the battery 8, this step S127 comprising substeps S1271 and S1272.
• the substep S1271 determines the energy balance CB of the battery 8 as a function of the current Ibat obtained.
• Sub-step S1272 performs a comparison calculation between the determined energy balance CB and a predetermined energy balance threshold value CBth3.
• This threshold value CBth3 may be greater than the threshold value CBth2. If the comparison computation of the sub-step 1252 results in a current Ibat greater than Ith, the control module 6 terminates the stop processing authorization sub-module ST4 at a step S129.
• control module 6 deactivates the ST4 engine stop enable processing sub-module in step S129.
• the step S128 comprises a substep S1281.
• the energy balance CB is then initialized to a zero value.
• control module 6 obtains the current Ibat at a step S132 and transmits it to a step S133 for determining the information energy status of the battery 8.
• Step S133 comprises substeps S1331 and S1332.
• the substep S1331 determines the energy balance CB of the battery 8 and transmits it to the substep S1332.
• the control module 6 then performs a comparison calculation with the sub-step S1212 between the determined energy balance CB and a predetermined energy balance threshold value CBth4.
• This threshold value CBth4 can be positive or zero.
• control module 6 deactivates the stopping authorization processing sub-module ST5 at a step S135.
• Step S134 includes substep S1341.
• FIG. 7 relates to a request processing submodule ST6 of the control module 6.
• the control module 6 obtains at a step S138 the voltage Ubat and transmits it to a step S139 for determining the energy state information of the battery 8.
• the step S139 comprises a substep S1391.
• Sub-step S1391 performs a comparison calculation between the obtained voltage Ubat and a predetermined voltage threshold value, called Uth.
• Uth a predetermined voltage threshold value
• the voltage Uth can be between 11, 5V and 12V for a 14V lead-acid battery.
• control module 6 terminates the request processing submodule ST6 engine recovery request in a step S141.
• Step S140 includes a substep S1401.
• control module 6 obtains the current Ibat at a step S144 and transmits it to a step S145 for determining the energy status information of the battery 8.
• Step S145 includes substeps S1451 and S1452.
• the substep S1451 determines the energy balance CB of the battery 8 and transmits it to the substep S1452.
• the control module 6 then performs a comparison calculation with the substep S1452 between the determined energy balance CB and a predetermined energy balance threshold value CBthi.
• This threshold value CBthi may be lower than the threshold value CBth2. If the comparison calculation results in a CB energy balance higher than CBthi, the control module 6 deactivates the ST7 request restart processing sub-module at a step S147.
• Step S146 includes a substep S1461.
• the control module 6 obtains at a step S150 the temperature Tbat and transmits it to a step S151 for determining the energy state information of the battery 8.
• the step S151 comprises substeps S151 1 and S1512.
• the substep S151 1 determines a current threshold value Ith, as a function of the temperature Tbat, the current Ith being read in the same manner as above.
• control module 6 obtains at a step S152 the current Ibat and transmits it to the substep S1512.
• the substep S1512 performs a comparison calculation between the current Ibat and the threshold value Ith determined.
• control module 6 terminates the cancellation processing sub-module request restart motor ST8 at a step S154.
• Step S153 includes substep S1531.
• control module 6 obtains at a step S157 the current Ibat and transmits it to a step S158 for determining the energy status information of the battery 8.
• Step S158 includes substeps S1581 and S1582.
• the substep S1581 determines the energy balance CB of the battery 8 and transmits it to the substep S1582.
• the control module 6 then performs a comparison calculation with the substep S1582 between the determined energy balance CB and a predetermined energy balance threshold value CBth5.
• This CBth5 threshold value can be positive or zero. If the comparison calculation results in a CB energy balance lower than CBth5, the control module 6 deactivates the cancel request processing submodule ST9 engine restart at a step S160.
• the step S159 comprises a substep S1591.

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• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Manufacturing & Machinery (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Electrochemistry (AREA)
• General Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
• Output Control And Ontrol Of Special Type Engine (AREA)
• Electric Propulsion And Braking For Vehicles (AREA)

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• 2007
  • 2007-08-23 FR FR0757149A patent/FR2920192B1/fr not_active Expired - Fee Related
• 2008
  • 2008-07-28 EP EP08827922A patent/EP2191127A2/fr not_active Withdrawn
  • 2008-07-28 CN CN200880104074.2A patent/CN101784789B/zh not_active Expired - Fee Related
  • 2008-07-28 BR BRPI0814499-0A2A patent/BRPI0814499A2/pt not_active Application Discontinuation
  • 2008-07-28 US US12/674,378 patent/US20110232597A1/en not_active Abandoned
  • 2008-07-28 WO PCT/FR2008/051416 patent/WO2009024706A2/fr not_active Ceased

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