WO2016133453A1 - Method and control system for charging a hybrid vehicle - Google Patents
Method and control system for charging a hybrid vehicle Download PDFInfo
- Publication number
- WO2016133453A1 WO2016133453A1 PCT/SE2016/050126 SE2016050126W WO2016133453A1 WO 2016133453 A1 WO2016133453 A1 WO 2016133453A1 SE 2016050126 W SE2016050126 W SE 2016050126W WO 2016133453 A1 WO2016133453 A1 WO 2016133453A1
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- WIPO (PCT)
- Prior art keywords
- hybrid vehicle
- gear box
- internal combustion
- parking brake
- combustion engine
- Prior art date
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- 238000007600 charging Methods 0.000 title claims abstract description 156
- 238000000034 method Methods 0.000 title claims abstract description 83
- 238000002485 combustion reaction Methods 0.000 claims abstract description 86
- 230000007935 neutral effect Effects 0.000 claims abstract description 57
- 238000004590 computer program Methods 0.000 claims description 11
- 239000003981 vehicle Substances 0.000 description 28
- 238000012544 monitoring process Methods 0.000 description 21
- 230000001276 controlling effect Effects 0.000 description 8
- 238000004891 communication Methods 0.000 description 6
- 230000009183 running Effects 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
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- 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
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
- B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
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- B60L2240/00—Control parameters of input or output; Target parameters
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- B60L2240/30—Parking brake position
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- B60L2240/00—Control parameters of input or output; Target parameters
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- 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
- B60L2240/00—Control parameters of input or output; Target parameters
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- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/90—Vehicles comprising electric prime movers
- B60Y2200/92—Hybrid vehicles
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- 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
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- 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
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- 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
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- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- 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
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- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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- 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
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- Y10S903/00—Hybrid electric vehicles, HEVS
- Y10S903/902—Prime movers comprising electrical and internal combustion motors
- Y10S903/903—Prime movers comprising electrical and internal combustion motors having energy storing means, e.g. battery, capacitor
- Y10S903/93—Conjoint control of different elements
Definitions
- the invention relates to a hybrid vehicle and a method for controlling charging of a hybrid vehicle in accordance with the preamble of claims 1 and 6, respectively.
- the present invention relates to charging of a hybrid vehicle.
- the driver parks the hybrid vehicle at a charging station, turns off the engine and connects the charging cable to the hybrid vehicle by inserting the plug of the charging cable into the charging socket of the hybrid vehicle.
- the hybrid system and the charging station starts to communicate and the hybrid system requests charging whereby the charging station starts to deliver electrical energy to the drive assembly battery of the hybrid vehicle.
- US 2010/0320018 describes a method for preventing drive away or roll away of a plug-in hybrid vehicle during charging. Driveway and roll away is prevented by disabling the hybrid vehicle by means of a mechanical restraint that locks the parking brake, or locks the gear in a park position. The mechanical restraint is applied by the vehicle when a charging process is detected. The driver is informed audibly or visibly by the disabled hybrid vehicle why the vehicle cannot be driven, see fig. 6 and ⁇ 0007 - ⁇ 0010 in US 2010/0320018. Fig 7 of US 2010/0320018 shows an embodiment wherein charging is only allowed when the vehicle has been parked.
- US 2011/0178663 describes a method for preventing drive away of a hybrid vehicle during charging. The vehicle is disabled when a charging cable is attached to the vehicle. If the driver makes a starting attempt, a message is shown. The vehicle is enabled when the charging cable is removed, see figure 2 and ⁇ 0023 - ⁇ 0025 in US 2011/0178663.
- the hybrid vehicle In addition to the drive assembly battery storage of the hybrid system, such as a high voltage storage, the hybrid vehicle would normally be provided with an accessory battery, such as a low voltage battery storage, for powering accessories, such as lights, heat, air-conditioning and user interface.
- the accessory battery can be charged by an external charger or by means of a generator driven by the internal combustion engine.
- the driver may need additional energy when charging the drive assembly battery storage, for example for using the accessories of the hybrid vehicle, or charging the accessory battery.
- the charging station may have a limited number of charging cables, and may be able to provide only a limited amount of electrical power for charging purposes.
- the driver would want to use all available power for the time- consuming charging of the drive assembly battery storage, but would also like to be able to use accessories without risking running out of power in the accessory battery.
- there is a need for a hybrid vehicle that may be charged with electrical power and at the same time have power to accessories of the vehicle.
- the invention provides a hybrid vehicle comprising an internal combustion engine and hybrid system comprising a charging unit, a battery storage and at least one electric motor.
- the hybrid vehicle further comprises a parking brake, a gear box and an electronic control system configu red to control the internal combustion engine, the hybrid system , the parki ng brake and the gear box.
- the hybrid vehicle is configu red to receive and store electrical energy du ring a charging process wherein the chargi ng u nit receives electrical energy from an external charging station and the battery storage stores the electrical energy for subsequent use by the at least one electric motor.
- the charg ing process is controlled by the electron ic control system , and the electronic control system is configured to :
- the hybrid vehicle al lows starting of the internal combustion engine during the charging process when the hybrid veh icle receives and stores electric energy, while ensu ring that the hybrid veh icle remains stationary by means of the applied parking brake and by means of the gear box bei ng set in the neutral gear.
- additional energy can be provided by the internal combustion eng ine during the chargi ng process.
- having the gear box in the neutral gear prevents that the internal combustion engine drives the wheels, wh ich is especially important during a chargi ng process when a charging cable is connected between the hybrid vehicle and the external charg ing station .
- the electronic control system is configured to lock the gear box i n the neutral gear in order to ensu re that the gear box is in the neutral gear before the starting of the internal combustion engine.
- the electronic control system is configured to lock the gear box in the neutral gear before starting the process of receiving and storing electrical energy. Locking the gear box in neutral already before starting the charg ing process provides a safe chargi ng process by preventing drive away of the vehicle, regardless of whether the driver subsequently would like to start the internal combustion engine or not.
- the electronic control system may also ensure that the parking brake is applied before starti ng the process of receiving and storing electrical energy, in order to make sure roll away of the veh icle is prevented during the charg ing process even duri ng charging processes where the internal combustion engi ne is not subsequently started.
- the electronic control system is configured to lock the gear box electronically, e.g . by means of setting an inh ibit signal in the electron ic control system .
- the hybrid vehicle comprises an electronically actuateable parking brake and the hybrid vehicle is config ured to lock the parking brake, e.g . by means of setti ng an in hibit sig nal i n the electronic control system .
- the electronic control system is configured to lock the parking brake in its applied state in order to ensu re that the parking brake is applied before the starting of the internal combustion engine, and preferably also before starting the charging process.
- the electronic control system is configured to lock the parking brake electronical ly, e.g . by means of setting an inh ibit signal in the electronic control system .
- the hybrid vehicle is adapted to provide in hibiting sig nals that locks the gear box and the parking brake during a charging process of the hybrid veh icle, wh ile providing an enabling mode that allows runn ing of the internal combustion engine.
- the enabling mode is provided on the basis that the hybrid vehicle is being charged, including receiving and storing electric energy, and that both gear box and the parking brake is locked.
- the hybrid veh icle is config ured to perform a charging process that comprises an enabli ng mode that is active when the gear box is set in neutral and the parking brake is activated, otherwise the enabli ng mode of the charging process is inactivated.
- the electronic control system is configured check that the internal combustion engine is off before starting the process of receiving and storing electrical energy. Ensu ring that the internal combustion engine is off contributes to a safe start of the charg ing process.
- the invention provides a method for controll ing charging of a hybrid veh icle, which comprises an electronic control system , a hybrid system , a parking brake, a gear box and an internal combustion engine.
- the method is performed by the electron ic control system of the hybrid veh icle du ring charging of the hybrid vehicle and comprises
- the invention provides a method for charging a hybrid vehicle that includes starting the internal combustion engine in order to provide power du ring the charging of the hybrid vehicle, wherein drive away and roll away is prevented by ensuring that the gear is in neutral and that the parking brake is applied.
- the driver wi ll have performed the steps of parking the vehicle, tu rning off the engine, and applying the parking brake, where after the driver will have con nected the hybrid vehicle to a charging station , including inserting a plug of a charging cable into a charging socket of vehicle.
- the ensuri ng that the gear box is in neutral includes locking the gear box in neutral .
- the locki ng of the gear box is performed electron ically, e.g . by means of setting an in hibit sig nal in the electronic control system .
- the locking of the gear box in the neutral gear is performed prior to receiving and storing the electric energy.
- the ensu ring that the gear box is in neutral is performed prior to starting the actual charging , i .e. prior to receivi ng and storing the electric energy.
- the method also includes ensuring that the veh icle is ready charging that incl udes monitoring the status of the gear box and detecting that the gear box is in the neutral gear. Thereby the engi ne is not able to drive the wheels even if it is i ntentionally or uni ntentionally started du ring the chargi ng process.
- the method i ncludes locking the gear box in the neutral gear prior to requesting charging , and thereby prior to receiving and storing the electric energy.
- the hybrid veh icle may be equ ipped with a manually actuated parking brake driven by means of pneu matic pressure system , or alternatively the hybrid veh icle may be equipped with an electronic parking brake that can be actuated by means the electronic control system and driven by means of a pneu matic system .
- the ensuri ng that the parking brake is applied comprises locking the parking brake.
- the locki ng of the parking brake being performed electronically, e.g . by setting an inh ibit signal in the electronic control system .
- said starting attempt is detected during the reception and storage of electric energy, and the method further comprises checki ng that the engine is off before receiving and storing the electric energy.
- the invention will enable start of the internal combustion eng ine during chargi ng , but as a safety measure do not allow in itiating the charging if the internal combustion engine is run ning .
- the present invention provides a computer program product comprising a computer program that is loadable into a memory of en electronic control system of a hybrid vehicle, and which computer program upon execution in the electronic control system, for example a hybrid controller of the electronic control system, enables the electronic control system to perform the method of controlling charging of the hybrid vehicle, as described above and as will be further described in the following description of embodiments.
- Figure 1 is a schematic illustration of an embodiment of the hybrid vehicle at a charging station
- Figure 2 illustrates a schematic flow chart of controlling starting of the internal combustion engine during charging of the hybrid vehicle
- Figure 3 is a schematic flow chart illustrating embodiments of a method of controlling charging of a hybrid vehicle.
- FIG 1 is an overview of parts of an electronic control system 10 of a plug-in hybrid vehicle 1, such as an electronic control system 10 comprising a CAN communication network and comprising a plurality of control units 13-17, such as ECU (Electronic Control Units).
- the control units are interconnected and includes a hybrid controller 13, a parking brake controller 14, a gear box controller 15, a user interface controller 16 and an engine control system 17.
- Each control unit 13-17 is configured to control respective units of the vehicle 1 and in the following features relevant for describing the invention will be described in more detail, although figure 1 as such is a simplified illustration of a control system 10 of a hybrid vehicle 1.
- the hybrid controller 13 is operatively connected to charging unit 31, a drive assembly battery storage 32 and an electric motor 33.
- the hybrid controller 13 is configured to monitor and control the charging unit 31 during charging of the hybrid vehicle by means of an external charging station 3, including detecting connection of a charging cable 5 to a cable connector (not illustrated) of the charging unit 31, and requesting charging of the hybrid vehicle from the external charging station 3.
- the hybrid controller 13 is also configured monitor the charging level of the battery, or electric energy, storage 32.
- the parking brake controller 14 is connected to the parking brake system and configured to monitor the status of the parking brake 42.
- the parking brake 42 is manually activated and pneumatically driven by means of a pneumatic drive system 41.
- the parking brake 42 is an electronic parking brake 42 and the hybrid vehicle 1 is configured to electronically maneuver the parking brake by means of the electronic control system 10, especially the parking brake controller 14.
- the parking brake controller 14 is configured to monitor the state of the parking brake 42 and the pneumatic drive system 41 is arranged to drive the parking brake 42 upon manual or electronic activation.
- the parking brake controller 14 is configured to control the parking brake 42, especially apply the parking brake 42, when receiving a command from, for example, the hybrid controller 13 that indicates that the parking brake 42 should be applied, such as a command received during a charging process of the hybrid vehicle 1.
- the electronic control system 10, e.g. the hybrid controller 13, is also configured to prevent release of the parking brake 42 by setting an inhibit signal that locks the parking brake, especially during a charging process.
- the gear box controller 15 is operatively connected to the gear box 51 and is configured to monitor the status of the gear box, especially which gear is active. It is suitable to configure the hybrid controller 13 to only allow charging when the gear 51 is in neutral.
- the gear box controller 15 is configured to select gear, especially applying the neutral, when receiving a command from, for example, the hybrid controller 13 that indicates that the gear box 51 should be switched to neutral.
- the gear box controller 15 may also be controlled by means of the user interface controller 16, such as by means of gear selectors arranged at the steering wheel (not illustrated) and operatively connected to the user interface controller.
- the gear box controller 15 is also configured to lock the gear box 51 in a selected gear, especially the neutral gear, when a locking or inhibit signal is set in the electronic control system 10, such as set by the hybrid controller 13 of the electronic control system 10 during a charging process.
- the user interface controller 16 is configured to receive user input from the driver, such as the driver turning on and off a main internal combustion engine 18 of the hybrid vehicle 1, such as a diesel, an ethanol or a gas engine, or the driver stopping charging of the hybrid vehicle 1.
- a main internal combustion engine 18 of the hybrid vehicle 1 such as a diesel, an ethanol or a gas engine, or the driver stopping charging of the hybrid vehicle 1.
- the engine control system 17 is configured to monitor the status of the internal combustion engine 18 being on or off, and is operatively configured to start and stop the internal combustion engine 18 upon receiving user input indicating starting and stopping, respectively.
- the user input may be provided by means of a user interface 61, such as a starting assembly for a key, via the user interface controller 16 to the engine control system 17, which is operatively connected to an internal combustion engine 18 of the hybrid vehicle 1.
- the hybrid vehicle 1 also comprises an accessory battery 11 arranged for powering for example the electronic control system 10 and accessories of the vehicle, and a generator 19 arranged for charging the accessory battery 11 by means of the internal combustion engine 18.
- the generator 19 may also be arranged for directly powering one or more accessories of the vehicle 1.
- the hybrid controller 13 is configured to monitor the status of the internal combustion engine 18, especially monitoring whether the internal combustion engine 18 is running or not.
- the hybrid controller 13 is adapted for controlling and monitoring the charging unit 31 and monitoring the drive assembly battery storage 32, and especially to control the charging process.
- the hybrid controller 13 is also configured to detect the presence of a charging plug 7 inserted into the cable socket (not illustrated) of the charging unit 31, and to communicate with an external charging station 3, including requesting charging from the external charging station 3.
- the hybrid controller 13 is configured to request charging from the external charging station 3 when the hybrid controller 13 has determined that the hybrid vehicle 1 is ready for charging.
- the hybrid vehicle 1, e.g. the hybrid controller 13, is configured to request charging from a charging station 3 when a charging cable has been connected to the charging unit 31, and the hybrid vehicle 1 is ready to be charged.
- the hybrid vehicle 1, e.g. hybrid controller 13 of the control system 10, is configured to determine that the hybrid vehicle 1 is ready to be charged when:
- the hybrid controller 13 is configured to receive electrical energy and store the received electrical energy in the battery storage 32 during the charging process.
- the hybrid controller 13 is also configured to monitor the charging process and to establish that the internal combustion engine 18 can be started during the charging process by monitoring the gear box 51 and the parking brake 42.
- the hybrid controller 13 is configured to enable running of the internal combustion engine 18 during charging by indicating that the internal combustion engine 18 may be started based on the criteria that the gear box 51 is in neutral and the parking brake 42 is applied.
- the hybrid controller 13 is configured to lock the gear box 51 and the parking brake 42 electronically by means of setting a respective inhibit signal in the electronic control system 10, preferably setting the inhibit signals after ensuring that the hybrid vehicle 1 is ready for charging and prior to requesting charging.
- the hybrid controller 13 may register an indication that the engine 18 may be started during the charging in a memory of the electronic control system 10, or may be configured to respond to a request for starting the internal combustion engine 18 from the engine control system 17 when it has ensured that the gear box 51 is in neutral and the parking brake 42 is applied. Thus the hybrid controller 13 is configured to provide an enabling mode for start of the internal combustion engine 18 during the charging process
- the hybrid vehicle 1 is configured to ensure that the hybrid vehicle 1 is ready for charging when the internal combustion engine 18 is off, the gear box 51 is in neutral and the parking brake 42 is applied.
- the hybrid vehicle 1 is configured to allow start of the internal combustion engine 18 when the gear box 51 is in neutral and the parking brake 42 is applied.
- the hybrid vehicle 1 is configured to start the internal combustion engine 18 during charging:
- Figure 1 also illustrates a computer program product 25, illustrated as a computer disc, which computer program product comprises a data carrier having a computer program stored thereon.
- the data carrier may be any non-transitory entity or device capable of carrying the program.
- the data carrier may comprise a storage medium, such as a Flash memory, a ROM (Read Only Memory), for example a DVD (Digital Video/ Versatile Disk), a CD (Compact Disc) or a semiconductor ROM, an EPROM (Erasable Programmable Read-Only Memory), an EEPROM (Electrically Erasable Programmable Read-Only Memory), or a magnetic recording medium, for example a floppy disc or hard disc.
- the carrier may be an integrated circuit in which the program is embedded, the integrated circuit being adapted for performing, or for use in the performance of, the relevant processes.
- the computer program is adapted for loading into a memory 26 of the electronic control system 10, and the computer program comprises software configured to be executed in the electronic control system 10 of the hybrid vehicle 1.
- the computer program is adapted to enable the electronic control system 10 to perform its functions, and especially the method steps described with reference to figures 2 and 3 in the following description of embodiments of a method, when executed by the electronic control system 10.
- Figure 2 illustrates starting of the internal combustion engine 18 during a process of charging the hybrid vehicle 1.
- the illustrated embodiment of a method of starting the internal combustion engine 18 of a hybrid vehicle 1 is performed during the actual charging, i.e.
- the hybrid vehicle 1 when receiving and storing electric energy, of the hybrid vehicle 1 and comprises detecting 110 that a starting attempt of the hybrid vehicle 1 is performed, i.e. performed by a user or driver of the hybrid vehicle 1.
- the method continues with ensuring 111 that the hybrid vehicle 1 is ready for a start of the internal combustion engine 18.
- the ensuring 111 that the hybrid vehicle is ready for starting the internal combustion engine 18 comprises ensuring 102, 103 that the gear box 51 is in the neutral gear including the steps of monitoring and determining 102 that the gear box 51 is in neutral gear, and ensuring 103 that the gear box 51 is locked, such as locking the gear box 51, or monitoring and determining that the gear box is locked.
- the locking of the gear box is preferably performed by setting an inhibit signal in the electronic control system 10 of the hybrid vehicle 1, which inhibit signal prevents switching gear by means of the gear box controller 15 holding the gear box 51 locked in neutral.
- the ensuring 111 that the hybrid vehicle is ready for starting the internal combustion engine 18 further comprises ensuring 104, 105 that the parking brake is applied, including monitoring and determining 104 that the parking brake is applied.
- the ensuring 111 ensuring 104, 105 that the parking brake is applied may also include ensuring 105 that the parking brake is locked in the applied state, such as monitoring and determining that the parking brake is locked, or locking the parking brake.
- Locking the parking brake 42 is performed by setting an inhibit signal in the electronic control system 10 of the hybrid vehicle 1, which inhibit signal prevents release of the parking brake by means of the parking brake controller 14 holding the parking brake 42 locked in the applied state.
- the method continues with starting the internal combustion engine 18, which starting is performed by means of the engine control system 17.
- the detecting 110 of a starting attempt, the ensuring 111 that the hybrid vehicle is ready for starting the internal combustion engine and the starting 121 of the internal combustion engine is performed by the electronic control system 10 of the hybrid vehicle 1.
- the detecting 110 of the starting attempt and the starting 121 of the hybrid vehicle is performed by the engine control system 17, whereas the ensuring 111 that the vehicle is ready for an internal combustion engine start is performed by the engine control system 17 and the hybrid controller 13 in combination, wherein the hybrid controller may perform the steps of monitoring and determining 102 that the gear box 51 is in neutral, ensuring 103 that the gear box 51 is in neutral and monitoring and determining 104 that the parking brake 42 is applied, and informs the engine control system 17 that the hybrid vehicle is ready.
- the ensuring 111 may include a step of determining whether charging of the hybrid vehicle 1 is in progress or not.
- the hybrid vehicle 1 may already have determined, i.e. prior to detecting 110 a starting attempt, that the hybrid vehicle 1 is ready for a start of the internal combustion engine.
- the hybrid controller 13 may perform the steps of monitoring and determining 102 that the gear box 51 is in neutral, ensuring 103 that the gear box 51 is locked by locking the gear box 51 and monitoring and determining 104 that the parking brake 42 is applied before requesting charging from the external charging station 3.
- the hybrid controller 13 may make an indication, in the electronic control system 10 of the hybrid vehicle 1, that an engine start is allowed.
- the electronic control system 10 of the hybrid vehicle 1 need only check if the indication that start of the internal combustion engine 18 is allowed in order to perform the step of ensuring 111 that the vehicle is ready for start of the internal combustion engine 18.
- Figure 3 illustrates the start 101-108 of a charging process and the subsequent charging (109), during which charging (109) a starting attempt of the internal combustion engine 18 is performed.
- Figure 3 illustrates how the method may be performed by the hybrid controller 13 and the engine control system 17 in cooperation.
- Figure 3 also illustrates how the hybrid controller 13 and the engine control system 17 interacts during the method of charging the hybrid vehicle 1, wherein a starting attempt (110) is performed by the driver during the actual charging 109 when electrical energy is received and stored (109).
- a driver of the hybrid vehicle 1 parks the hybrid vehicle 1 at a charging station 3, sets the gear box 51 in neutral, turns off the engine 18, applies the parking brake 42, and inserts the plug 7 of the charging station 3 into a charging socket of the charging unit 31 of the hybrid vehicle 1.
- the control of the charging process is performed by the hybrid controller 13 and the control of the internal combustion engine start is performed by the engine control system 17 in communication with the hybrid controller 13. It is suitable to provide the charging control and starting control functions as computer software, which when run on a hybrid controller 13 and engine control system 17, respectively, or other computer control unit or units, such as ECUs, of a hybrid vehicle 1, makes the hybrid vehicle 1 perform the method.
- the method for controlling charging starts with detecting 101 the presence of the charging plug 7 in the charging socket of the charging unit 31.
- the hybrid controller 13 is configured to register the presence of the charging plug 7 upon detection of the charging plug 7 during its insertion, and sets a connection state indicator in a memory of the electronic control system 10 of the hybrid vehicle 1 to indicate that a charging plug 7 has been connected.
- the method may suitably continue with initiating communication with the charging station 3, wherein a handshaking process is performed between the hybrid vehicle 1 and the charging station 3.
- the initiation may include verification of the charging station 3 and of the hybrid vehicle 1, using e.g. exchange of password, electronic identification or encryption keys.
- the hybrid controller 13 is configured to register a successfully initiated communication and sets a communication state indicator to indicate that communication with a charging station 3 commence and is available.
- the method further includes ensuring 102-106 that the hybrid vehicle 1 is ready to be charged.
- the ensuring 102-106 that the hybrid vehicle is ready for charging includes:
- the ensuring 102, 103 that the gear box 51 is in the neutral gear comprises monitoring and determining that the gear box 51 is in the neutral and ensuring that the gear box 51 is locked by locking the gear box 51.
- the gear box 51 is locked electronically by means of an inhibit signal as previously described.
- the ensuring 104, 105 that the parking brake is applied comprises monitoring and determining 104 that the parking brake is applied and may also include ensuring 105 that the parking brake 42 is locked by locking the parking brake 42.
- the parking brake 42 is locked electronically as previously described.
- the monitoring of the parking brake 42 may also include monitoring the pressure of the pneumatic driving system 41 of the parking brake 42 to ensure proper functioning of the parking brake 42.
- the method may continue by indicating 107 that the hybrid vehicle 1 is ready for charging, which indication may be used during the subsequent charging (109) to ensure 111 that the hybrid vehicle 1 is ready for starting the internal combustion engine 18.
- the indication can be provided by registering that the internal combustion engine is not running and by means of the previously described inhibit signals that prevent maneuvering of the gear box 51 and maneuvering of the parking brake 42.
- the inhibit signals should be provided as long as the hybrid vehicle 1 remains connected to the charging cable 5 of the charging station 3, as detected in step 101.
- the method continues with requesting 108 charging from the external charging station 3.
- the charging station 3 responds by starting to supply electrical energy to the hybrid vehicle 1.
- the actual charging begins and the hybrid vehicle 1 receives and stores 109 electrical energy, which charging is controlled by the hybrid controller 14 and wherein the charging unit 31 receives the electrical energy and the drive assembly battery storage 32 stores the electrical energy.
- the engine control system 17 detects 110 a starting attempt.
- the engine control system 17 and the hybrid controller cooperates in ensuring 111 that the hybrid vehicle 1 is ready for start of the internal combustion engine 18.
- the engine control system continues with inquiring or requesting 112 the hybrid controller 13 if starting is allowed.
- the hybrid controller 13 receives 113 the request for starting and as a response to the request continues with:
- the engine control system 17 receives 120 the message and continues with starting 121 the internal combustion engine 18 as a response to the ensuring 111 that the hybrid vehicle 1 is ready for starting the internal combustion engine 18.
- the ensuring 102, 103 that the gear box 51 is in neutral comprises:
- the ensuring 102, 103 that the gear box 51 is in neutral comprises using the indication made in step 107, after ensuring 102-106 that the hybrid vehicle 1 is ready for charging, which indication ensure that the gear box 51 is locked in the neutral gear.
- the ensuring 104, 105 that the parking brake 42 is applied comprises:
- the ensuring 104, 105 that the parking brake 42 is applied comprises using the indication made in step 107, after ensuring 102-106 that the hybrid vehicle 1 is ready for charging, which indication ensure that the parking brake 42 is applied, and preferably locked.
- a hybrid vehicle 1 comprising an internal combustion engine 18, a hybrid system, a parking brake 42, a gear box 51 and an electronic control system 10 has been provided.
- a method for controlling a hybrid vehicle 1 has also been provided. The method comprises charging the hybrid vehicle 1 by receiving and storing 109 electric energy, and the electronic control system 10 is configured to perform the method, which enables a safe way of starting the internal combustion engine during the charging.
- the electronic control system 10 is configured to:
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Abstract
Description
Claims
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BR112017017010-8A BR112017017010B1 (en) | 2015-02-18 | 2016-02-18 | HYBRID VEHICLE COMPRISING INTERNAL COMBUSTION ENGINE AND METHOD FOR CONTROLLING HYBRID VEHICLE |
EP16752738.1A EP3259155B1 (en) | 2015-02-18 | 2016-02-18 | Method and control system for charging a hybrid vehicle |
US15/550,396 US10752251B2 (en) | 2015-02-18 | 2016-02-18 | Method and control system for charging a hybrid vehicle |
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SE1550178A SE538693C2 (en) | 2015-02-18 | 2015-02-18 | Method and control system for charging a hybrid vehicle |
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Also Published As
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EP3259155A4 (en) | 2018-11-07 |
KR102016714B1 (en) | 2019-09-02 |
BR112017017010A2 (en) | 2018-04-10 |
SE538693C2 (en) | 2016-10-18 |
US10752251B2 (en) | 2020-08-25 |
EP3259155A1 (en) | 2017-12-27 |
SE1550178A1 (en) | 2016-08-19 |
BR112017017010B1 (en) | 2022-10-18 |
KR20170117458A (en) | 2017-10-23 |
US20180029600A1 (en) | 2018-02-01 |
EP3259155B1 (en) | 2020-04-08 |
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