WO2017113939A1 - Véhicule électrique à prolongateur d'autonomie et procédé de commande de démarrage de moteur associé, et système - Google Patents

Véhicule électrique à prolongateur d'autonomie et procédé de commande de démarrage de moteur associé, et système Download PDF

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Publication number
WO2017113939A1
WO2017113939A1 PCT/CN2016/102595 CN2016102595W WO2017113939A1 WO 2017113939 A1 WO2017113939 A1 WO 2017113939A1 CN 2016102595 W CN2016102595 W CN 2016102595W WO 2017113939 A1 WO2017113939 A1 WO 2017113939A1
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WIPO (PCT)
Prior art keywords
engine
apu
command
stop command
enabled
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PCT/CN2016/102595
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English (en)
Chinese (zh)
Inventor
王金龙
易迪华
金硕
崔天祥
周金龙
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北京新能源汽车股份有限公司
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Publication of WO2017113939A1 publication Critical patent/WO2017113939A1/fr

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    • 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
    • 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
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • 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
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • B60L15/24—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed with main controller driven by a servomotor
    • 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
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
    • 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
    • B60L2260/00—Operating Modes
    • B60L2260/40—Control modes
    • B60L2260/44—Control modes by parameter estimation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility

Definitions

  • the present invention relates to the field of electric vehicle technology, and in particular, to an engine starting control method and system for an extended-range electric vehicle and an extended-range electric vehicle.
  • an extended-range electric vehicle has a simple factor to consider when starting control of the engine, and cannot respond according to some requirements in the starting process (for example, a shutdown requirement, etc.), thereby resulting in an increased use experience of the extended-range electric vehicle. good.
  • an object of the present invention is to provide an engine start control method for an extended-range electric vehicle, which detects whether there is a shutdown demand or a start failure during engine start control, and if not, controls the range extender to switch to Start-up conditions, if any, prohibit the engine from starting, control the range extender to maintain the shutdown condition, to ensure timely response to the vehicle control unit, to ensure the safety of components that may be faulty.
  • a second object of the present invention is to provide an engine start control system for an extended-range electric vehicle.
  • a third object of the present invention is to provide an extended-range electric vehicle.
  • the engine start control system of the extended-range electric vehicle includes a vehicle control unit VCU, an engine control unit EMS, and a generator control unit a GCU, a range extender control unit APU, a generator, and an engine, the method comprising the steps of: obtaining, when the range extender is in a shutdown condition, a state of an engine emergency stop command, an engine stop command, and an engine start command; Determining, by the APU, whether the engine emergency stop command is not enabled, whether the engine stop command is not enabled, and whether the engine start command is received; if the engine emergency stop command is not enabled, the engine stop command If the engine start command is not enabled and received, the APU further determines whether the number of start failures is less than a start failure number allowable threshold; if the APU determines that the number of start failures is less than the start failure number allowable threshold, The range extender switches to a starting condition.
  • An engine start control method for an extended-range electric vehicle detects whether there is a shutdown requirement or a startup failure when the engine is started, and if not, controls the range extender to switch to a starting condition, and if so, The engine is prohibited from starting, and the range extender is controlled to maintain the shutdown condition to ensure timely response to the vehicle control unit and to ensure the safety of components that may malfunction.
  • the method further includes: if the engine emergency stop command is enabled, the engine stop command is enabled or not received, the APU maintains the range extender For shutdown conditions.
  • the method further includes: if the APU determines that the number of startup failures is greater than or equal to the number of startup failure permission thresholds, prohibiting the engine from starting and performing a fault reminder.
  • the method further includes: when the range extender is in a starting condition, the APU determining whether the downtime of the engine is greater than a shutdown hold time threshold; if the APU determines the engine If the shutdown time is greater than the shutdown hold time threshold, the GCU controls the generator to be in the speed control mode to drag the engine; the APU determines whether the generator speed is greater than a drag target speed threshold; The generator speed is greater than the drag target speed threshold, and the APU controls the generator to exit the drag through the GCU; the APU controls the engine to ignite through the EMS.
  • the method further includes: when the range extender is in a starting condition, the APU acquires a state of an engine emergency stop command, an engine stop command, and an engine start command; the APU determines the engine Whether an emergency stop command is enabled, whether the engine stop command is enabled, or whether the engine start command is not received; if the APU determines that the engine emergency stop command is not enabled and the engine stop command is not enabled and Receiving the engine start command, the APU calculates a start time; the APU determines whether the start time is greater than a start timeout threshold; if the APU determines that the start time is not greater than the start timeout threshold, further determining Whether the engine start is completed; if the APU determines that the engine start is completed, resetting the number of start failures.
  • the method further includes: if the APU determines that the startup time is greater than the startup timeout threshold, incrementing the number of startup failures by one; and the APU switches the range extender to Downtime conditions.
  • the method further includes: if the APU determines that the engine emergency stop command is enabled, the engine stop command is enabled, or the engine start command is not received, then the range extender is Switch to the shutdown condition.
  • an engine starting control system for an extended-range electric vehicle includes: a vehicle control unit VCU, an engine control unit EMS, a generator control unit GCU, a range controller control unit APU, and power generation.
  • the VCU, the EMS, the GCU, and the APU are communicably connected by a car CAN network, the generator being respectively connected to the GCU and the engine, the engine and The EMS is connected, wherein the VCU is configured to output an engine emergency stop command, an engine stop command, or an engine start command; the APU is configured to acquire the engine when the range extender of the extended-range electric vehicle is in a shutdown condition a state of the emergency stop command, the engine stop command, and the engine start command, and further determining that the engine emergency stop command is not enabled, the engine stop command is not enabled, and the engine start command is received, further Determining whether the number of startup failures is less than a threshold number of startup failures, and determining that the number of startup failures is less than The extender switching control starting condition to start when said threshold number of failures allowed.
  • An engine start control system for an extended-range electric vehicle detects whether there is a shutdown requirement or a startup failure when the engine is started, and if not, controls the range extender to switch to a starting condition, and if so, The engine is prohibited from starting, and the range extender is controlled to maintain the shutdown condition to ensure timely response to the vehicle control unit and to ensure the safety of components that may malfunction.
  • the APU is further configured to control the range extender when determining that the engine emergency stop command is enabled, the engine stop command is enabled, or the engine start command is not received. Maintain the shutdown condition.
  • the APU is further configured to prohibit the engine from starting when determining that the number of start failures is greater than or equal to the number of start failures, and send a fault reminding signal to the VCU.
  • the APU is further configured to determine whether the downtime of the engine is greater than a shutdown hold time threshold when the range extender is in a starting condition, and determine the downtime of the engine Transmitting a speed control command to the GCU when the shutdown hold time threshold is greater;
  • the GCU is configured to control the generator to be in a speed control mode to drag the engine according to the speed control command;
  • the APU is further used And sending a standby command to the GCU when determining that the generator speed is greater than the drag target speed threshold, so that the GCU controls the generator to exit the drag, and the engine stop request prohibition command and the engine start A request enable command is sent to the EMS to cause the EMS to control the engine to ignite.
  • the APU is further configured to acquire a state of an engine emergency stop command, an engine stop command, and an engine start command when the range extender is in a starting condition, and determine the engine emergency The stop command is not enabled, and the engine stop command is not enabled and the start time is calculated when the engine start command is received, and further determining whether the engine start is completed when determining that the start time is not greater than a start timeout threshold And resetting the number of start failures when it is determined that the engine start is completed.
  • the APU is further configured to increase the number of the startup failures by one when determining that the startup time is greater than the startup timeout threshold, and control the range shifter to switch to the shutdown condition.
  • the APU is further configured to switch the range extender when determining that the engine emergency stop command is enabled, the engine stop command is enabled, or the engine start command is not received. To the shutdown condition.
  • an extended-range electric vehicle includes the engine start control system of the second aspect of the present invention.
  • the extended-range electric vehicle has the engine starting control system, responds promptly to the shutdown requirement during the starting process, ensures the safety of components that may be malfunctioned, improves the engine starting smoothness, and improves each The engine start-up success rate in the environment enhances the driving experience of the extended-range electric vehicle.
  • FIG. 1 is a block diagram showing an engine start control system of an extended-range electric vehicle according to an embodiment of the present invention
  • 2A is a flow chart of an engine start control method of an extended-range electric vehicle according to an embodiment of the present invention
  • 2B is a flow chart of an engine start control method of an extended-range electric vehicle according to an embodiment of the present invention
  • FIG. 3 is a flow chart of an engine start control method of an extended-range electric vehicle according to another embodiment of the present invention.
  • FIG. 4 is a flow chart of an engine start control method of an extended-range electric vehicle according to still another embodiment of the present invention.
  • the vehicle control unit 100 The vehicle control unit 100, the range extender control unit 200, the generator control unit 300, the engine control unit 400, the generator 500, and the engine 600.
  • the engine start control system of the extended-range electric vehicle includes a vehicle control unit VCU, an engine control unit EMS, a generator control unit GCU, a ranger control unit APU, a generator, and an engine.
  • the engine control unit EMS, the generator control unit GCU, the generator and the engine constitute a range extender.
  • the VCU, EMS, GCU and APU establish a communication connection through the car CAN network, and the generator and the engine are directly connected.
  • FIG. 2A is a flow chart of an engine start control method of an extended-range electric vehicle according to an embodiment of the present invention. As shown in FIG. 2A, the engine start control method of the embodiment of the present invention includes the following steps:
  • the APU acquires the state of the engine emergency stop command, the engine stop command, and the engine start command.
  • the vehicle control unit VCU detects all state information necessary for driving the vehicle, and outputs an engine start stop command information after comprehensive judgment, including an engine emergency stop command, an engine stop command, an engine start command, The generator limits the power.
  • the range extender control unit APU acquires the states of the engine emergency stop command, the engine stop command, and the engine start command.
  • the APU determines whether the engine emergency stop command is not enabled, whether the engine stop command is not enabled, and whether an engine start command is received.
  • the APU further determines whether the number of start failures is less than the allowable failure number threshold.
  • the APU determines that the engine emergency stop command is not enabled, the engine stop command is not enabled, and the engine start command is received, the APU further determines the number of start failures, that is, determines whether the number of start failures is less than the allowable failure number threshold.
  • the range extender is switched to the startup condition.
  • the range extender is switched to the startup condition to perform a startup operation.
  • the method further includes: S5, if the engine emergency stop command is enabled, the engine stop command is enabled, or the engine start command is not received, the APU maintains the range extender as a shutdown condition.
  • the method further includes: S6, if the APU determines that the number of startup failures is greater than or equal to the number of activation failures, the engine is disabled and the fault is rectified.
  • the controller determines that the number of startup failures is greater than or equal to the number of activation failures, the controller is considered to have a startup failure, prohibits the engine from starting again, and feeds back the engine startup failure to the vehicle control unit, and the vehicle control unit receives the VCU. After this signal, the engine start command is no longer sent. Only after the vehicle is powered on again, the controller APU will reset the fault flag and the number of failed starts, and the vehicle control unit VCU resends the engine start command.
  • the engine start control method includes the following steps:
  • the stroker is allowed to start only when the stroke is in the stop state, that is, the engine is in the stop state and the generator is in the standby state.
  • the process jumps to S204; otherwise, the process jumps to S205.
  • the controller control unit will reset the fault flag and the number of start failures, and the vehicle control unit resends the engine start command.
  • the process unit is kept in a stopped state.
  • the engine starting control method detects whether there is a shutdown requirement or a starting failure when the engine is started, and if not, controls the range extender to switch to the starting condition, and if so, prohibits the engine from starting, and controlling the extended range.
  • the machine maintains a shutdown condition to ensure timely response to the vehicle control unit and to ensure the safety of components that may be malfunctioning.
  • the engine start control method further includes: when the range extender is in the starting condition, the APU determines whether the engine down time is greater than the stop hold time threshold; if the APU determines that the engine down time is greater than the stop hold time Threshold, the GCU controls the generator to be in the speed control mode to drag the engine; the APU determines whether the generator speed is greater than the drag target speed threshold; if it is judged that the generator speed is greater than the drag target speed threshold, the APU controls the generator to exit through the GCU Drag; APU controls engine ignition through EMS.
  • the engine start control method further includes the following steps:
  • the range extender is in a starting condition.
  • the APU performs the stop and keeps timing. That is, the APU counts engine downtime.
  • the stop state is maintained. Assuming that the engine shutdown is not stable, engine bounce may occur. At this time, if the fuel is ignited, it may cause danger or damage to the engine. Therefore, the stop state is kept delayed to ensure that the process is in a stable shutdown state before the engine is started.
  • the APU determines whether the engine down time is greater than a shutdown hold time threshold. If yes, go to S304, otherwise go back to S302.
  • the GCU controls the generator to be in the speed control mode to drag the engine.
  • the APU determines that the engine down time is greater than the shutdown hold time threshold, then the stop is maintained When the state is completed, then the APU controls the generator speed to drive the engine.
  • the APU sends a speed control command to the generator control unit GCU, which operates the ISG (ie, the ISG in FIG. 1) in the speed control mode to drag the engine.
  • the generator control unit GCU which operates the ISG (ie, the ISG in FIG. 1) in the speed control mode to drag the engine.
  • the engine drag target speed threshold considers the following factors: First, it is higher than the engine resonance zone speed to avoid excessive engine vibration during starting; secondly, reference to the engine control unit EMS according to current ambient temperature, atmospheric pressure and other factors The engine idle speed target speed is comprehensively judged.
  • the engine drag target speed threshold takes the maximum value of each of the above speeds.
  • the generator control unit GCU controls the generator ISG to operate in the speed control mode according to the engine drag target speed threshold, and drags the engine directly connected with the ISG.
  • the APU uses the generator limit power sent by the vehicle control unit VCU as the maximum output torque limiting factor to ensure vehicle driving performance and battery reliability.
  • the APU compares the torque value calculated from the maximum output power of the generator sent by the VCU with the calibrated maximum output torque value of the generator, taking the smaller value as the absolute value of the maximum torque that allows the generator to output.
  • S305 The APU determines whether the generator speed is greater than a drag target speed threshold. If yes, execute S306, if no, return to S305 to continue the determination.
  • the APU also monitors the generator speed to determine whether the generator speed reaches the engine drag target speed threshold.
  • the APU controls the generator to exit the drag through the GCU.
  • the APU controls the generator to exit the drag through the GCU. After the generator drags the engine to the target speed, the generator immediately exits and drags, avoiding excessive vibration between the engine and the generator.
  • the engine and generator may have excessive reverse force, resulting in engine and power generation. Possible breakage of the machine connection structure.
  • the APU when it is determined that the generator speed is greater than the engine drag target speed threshold, the APU sends a standby command, the generator target speed is 0 to the GCU, and the GCU controls the ISG to enter the standby and rotate state, and exits the drag engine.
  • the APU controls engine ignition through the EMS.
  • the APU requests to start the engine and perform fuel injection ignition control.
  • the APU sends an engine shutdown request inhibit and an engine start request enable to the engine control unit EMS, which controls the engine fuel injection ignition.
  • the APU determines whether the startup is completed. If yes, it ends, if no, it returns to S308 to continue the judgment.
  • the APU monitors the engine start success flag of the EMS feedback in real time, and when it is detected that the launch start success flag is enabled, determines that the engine start is successful; otherwise, continues to wait for the engine start success flag position.
  • the engine stop state is maintained and judged to ensure the engine safety when the fuel injection is ignited; the engine drag target speed threshold selection strategy is selected to ensure the engine start Ride smoothness, which improves the engine start success rate under various environments; limits the maximum output torque of the generator during the speed control process to avoid the damage of the turret; the generator limit power sent by the vehicle control unit is taken as The maximum output torque limiting factor ensures vehicle driving performance and battery reliability.
  • the factors that can suspend the engine start-up mainly include the shutdown demand and the start timing timeout during the starting process. When these two conditions are met, the engine starting process is aborted. The details will be described below.
  • the method further includes: when the range extender is in the starting condition, the APU acquires the state of the engine emergency stop command, the engine stop command, and the engine start command; and the APU determines whether the engine emergency stop command is enabled, and the engine Whether the stop command is enabled or not received the engine start command; if the APU determines that the engine emergency stop command is not enabled and the engine stop command is not enabled and receives the engine start command, the APU calculates the start time; the APU determines whether the start time is greater than The start timeout threshold; if the APU determines that the start time is not greater than the start timeout threshold, further determining whether the engine start is completed; if the APU determines that the engine start is completed, resetting the number of start failures.
  • the APU determines that the starting time is greater than the starting timeout threshold, the number of starting failures is increased by one, and the range extender is switched to the shutdown condition.
  • the range extender is switched to the shutdown condition if the APU determines that the engine emergency stop command is enabled, the engine stop command is enabled, or the engine start command is not received.
  • the engine start control method further includes the following steps:
  • the range extender is in a starting condition.
  • the range extender control unit determines the shutdown requirement.
  • the APU acquires the status of the engine emergency stop command, the engine stop command, and the engine start command.
  • the APU makes a judgment on the shutdown demand, which is performed in real time during the starting process.
  • the shutdown demand judgment is made, and the APU detects whether the engine emergency stop command, the engine stop command, and the engine start command satisfy one of the following three conditions: the engine emergency stop command enable, the engine stop command enables The engine start command can or cannot be received. If yes, it is determined that the vehicle control unit VCU has a shutdown requirement, then the process goes to step S408, otherwise, step S403 is performed.
  • the APU determines that there is no need for stopping during the starting process, and then calculates the starting time. This step is performed in real time during the start-up process. During the starting process, the total starting time is counted.
  • the start time is timed out. That is, the APU determines whether the startup time is greater than the startup timeout threshold.
  • the APU performs a start timeout determination, which is performed in real time during the startup process. That is, the APU determines whether the startup time exceeds the startup timeout threshold. If it is determined that the startup time is greater than the startup timeout threshold, then S405 is performed; if it is determined that the startup time is not greater than the startup timeout threshold, then S406 is performed.
  • the APU determines that the starting time is not greater than the starting timeout threshold, it is further determined whether the engine starting is completed.
  • the APU monitors the engine start success flag fed back by the engine control unit EMS in real time, and determines that the engine start is successful when it is detected that the launch start success flag is enabled.
  • the APU determines that the engine start is completed, the number of start failures is reset. So as not to affect the next engine start judgment.
  • the APU controls the range extender to enter a shutdown state, waiting for the next start command.
  • the present invention also proposes an engine start control system for an extended-range electric vehicle.
  • an engine start control system for an extended-range electric vehicle includes: a vehicle control unit (VCU) 100, a range extender control unit (APU) 200, and a generator control unit (GCU) 300.
  • the vehicle control unit 100, the range extender control unit 200, the generator control unit 300, and the engine control unit 400 are communicably connected by a car CAN network, and the generator 500 is connected to the generator control unit 300 and the engine 600, respectively.
  • Engine 600 is coupled to engine control unit 400.
  • the engine control unit 400, the generator control unit 300, the generator 500, and the engine 600 constitute a range extender.
  • the generator 500 and the engine 600 are directly connected together.
  • the vehicle control unit 100 is configured to output an engine emergency stop command, an engine stop command, or an engine start command.
  • the vehicle control unit 100 detects all state information necessary for driving the vehicle, and outputs an engine start stop command information including an engine emergency stop command, an engine stop command, an engine start command, and a generator limit power after comprehensive judgment.
  • the range extender control unit 200 is configured to acquire the states of the engine emergency stop command, the engine stop command, and the engine start command when the range extender of the extended-range electric vehicle is in the shutdown condition, and determine that the engine emergency stop command is not enabled, When the engine stop command is not enabled and the engine start command is received, it is further determined whether the number of start failures is less than the allowable failure number threshold, and the range extender is switched to the start condition when it is determined that the number of start failures is less than the allowable failure number threshold.
  • the range extender control unit 200 acquires the states of the engine emergency stop command, the engine stop command, and the engine start command.
  • the range extender control unit 200 determines that the engine emergency stop command is not enabled, the engine stop command is not enabled, and the engine start command is received, the number of start failures is further determined, that is, whether the number of start failures is less than the allowable number of start failures.
  • the range extender is switched to the starting condition to perform a starting operation.
  • the range extender control unit 200 is further configured to control the range extender to maintain the shutdown condition when determining that the engine 600 emergency stop command is enabled, the engine stop command is enabled, or the engine start command is not received. .
  • the range extender control unit 200 is further configured to prohibit the engine 600 from starting when determining that the number of start failures is greater than or equal to the number of start failures, and send a fault reminding signal to the vehicle control unit 100.
  • the range extender control unit 200 determines that the number of start failures is greater than or equal to the number of start failures allowable threshold, it is considered that there is a start failure of the flow controller, prohibiting the engine 600 from starting again, and feeding back the engine 600 to the vehicle control unit 100. After the failure, the vehicle control unit 100 does not send the engine 600 start command after receiving the signal. Only after the whole vehicle is powered on again, the controller control unit resets the fault flag and the number of start failures, and the vehicle control unit 100 resends the engine 600 start command.
  • the engine starting control system of the embodiment of the present invention detects whether there is a shutdown requirement or a starting failure when the engine is started, and if not, controls the range extender to switch to the starting condition, and if so, prohibits the engine from starting, and controlling the extended range.
  • the machine maintains a shutdown condition to ensure timely response to the vehicle control unit and to ensure the safety of components that may be malfunctioning.
  • the range extender control unit 200 is further configured to determine whether the downtime of the engine 600 is greater than the shutdown hold time threshold when the range extender is in the start condition, and determine that the downtime of the engine 600 is greater than When the shutdown time threshold is reached, the speed control command is sent to the generator control unit 300;
  • the generator control unit 300 is configured to control the generator 500 to be in the speed control mode according to the speed control command to drive the engine 600;
  • the range extender control unit 200 is further configured to send a standby command to the generator control unit 300 when determining that the generator 500 speed is greater than the drag target speed threshold, so that the generator control unit 300 controls the generator 500 to exit the drag, and
  • the engine stop request inhibit command and the engine start request enable command are sent to the engine control unit 400 to cause the engine control unit 400 to control the engine 600 to ignite.
  • the stop state is maintained. Assuming that the engine 600 shutdown is not stable, there may be a rebound phenomenon of the engine 600, and if the fuel injection is performed, the engine 600 may be dangerous or damaged. Therefore, the stop state is maintained for a delay to ensure that the process is in a stable shutdown state before the engine 600 is started.
  • the range extender control unit 200 determines whether the down time of the engine 600 is greater than the shutdown hold time threshold. If it is determined that the down time of the engine 600 is greater than the shutdown hold time threshold, the shutdown hold state is considered complete, then the range extender control unit 200 performs the generator 500 rotational speed control on the generator 500 to drag the engine 600.
  • the range extender control unit 200 sends a speed control command to the generator control unit 300, which controls the generator 500 (i.e., the ISG in FIG. 1) to operate in the speed control mode to drag the engine 600.
  • the engine 600 drag target speed threshold considers the following factors: First, it is higher than the engine 600 resonance zone speed to avoid excessive vibration of the engine 600 during the starting process; secondly, reference to the engine control unit 400 according to the current ambient temperature, the atmosphere
  • the engine 600 idle speed target speed is comprehensively determined by factors such as pressure.
  • the engine 600 drag target speed threshold takes the maximum value of each of the above speeds.
  • the generator control unit 300 controls the generator 500 to operate in the speed control mode in accordance with the engine drag target speed threshold, and drags the engine 600 directly connected to the generator 500 to operate in common.
  • the range extender control unit 200 uses the generator limit power transmitted by the vehicle control unit 100 as a maximum output torque limiting factor to ensure vehicle driving performance and battery reliability.
  • the range extender control unit 200 compares the torque value calculated according to the maximum output power of the generator transmitted by the vehicle control unit 100 with the calibrated maximum output torque value of the generator, and takes the smaller value as the output of the generator 500. The absolute value of the maximum torque.
  • the engine 600 before the generator 500 drives the engine 600, the engine 600 is stopped and judged to ensure that the engine 600 is safe when the fuel is ignited; and the engine drag target speed threshold is selected.
  • the engine starting smoothness is ensured, and the engine starting success rate in each environment is improved; the maximum output torque of the generator during the speed control process is limited to avoid the damage of the stroke device; the whole vehicle control unit 100 transmits
  • the generator limit power is used as the maximum output torque limiting factor to ensure the vehicle driving performance and battery reliability.
  • the starting factor for stopping the engine 600 mainly includes the shutdown demand and the start timing timeout during the starting process. When these two conditions are met, the engine 600 starting process is aborted. The details will be described below.
  • the range extender control unit 200 is further configured to acquire the state of the engine emergency stop command, the engine stop command, and the engine start command when the range extender is in the starting condition, and determine the engine emergency stop. If the command is not enabled, and the engine stop command is not enabled and the engine start command is received, the start time is calculated, and when it is determined that the start time is not greater than the start timeout threshold, it is further determined whether the engine 600 start is completed, and when it is determined that the engine 600 is started. Reset the number of failed starts.
  • the range extender control unit 200 performs the stop demand determination, and the range extender control unit 200 detects three conditions of the engine emergency stop command, the engine stop command, and the engine start command.
  • the vehicle control unit 100 does not have a stop demand, and then the start time is counted.
  • the range extender control unit 200 determines that the start time does not exceed the start time timeout threshold, it is further determined whether the engine 600 start is completed, and if it is determined that the engine 600 is started, the number of start failures is reset.
  • the range extender control unit 200 is further configured to increase the number of startup failures by one when determining that the startup time is greater than the startup timeout threshold, and control the range extender to switch to the shutdown condition.
  • the range extender control unit 200 is further configured to switch the range extender to the shutdown condition when determining that the engine emergency stop command is enabled, the engine stop command is enabled, or the engine start command is not received.
  • the present invention also proposes an extended-range electric vehicle.
  • the extended-range electric vehicle includes the engine start control system of the above embodiment.
  • the extended-range electric vehicle has the engine starting control system, and responds to the shutdown requirement in the starting process in time to ensure the safety of the components that may be malfunctioning; also improves the engine starting smoothness and improves each The engine start-up success rate in the environment enhances the driving experience of the extended-range electric vehicle.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” or “second” may include at least one of the features, either explicitly or implicitly.
  • the meaning of "a plurality” is at least two, such as two, three, etc., unless specifically defined otherwise.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. , or integrated; can be mechanical or electrical connection; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction of two elements, unless otherwise specified Limited.
  • the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • the first feature "on” or “under” the second feature may be a direct contact of the first and second features, or the first and second features may be indirectly through an intermediate medium, unless otherwise explicitly stated and defined. contact.
  • the first feature "above”, “above” and “above” the second feature may be that the first feature is directly above or above the second feature, or merely that the first feature level is higher than the second feature.
  • the first feature “below”, “below” and “below” the second feature may be that the first feature is directly below or obliquely below the second feature, or merely that the first feature level is less than the second feature.

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

L'invention concerne un procédé de commande de démarrage de moteur destiné à un véhicule électrique à prolongateur d'autonomie, et un système permettant d'exécuter le procédé. Le procédé de commande comprend les étapes suivantes : lorsqu'un prolongateur d'autonomie se trouve dans une condition de fonctionnement arrêté, un APU acquiert les états d'une instruction d'arrêt d'urgence de moteur, d'une instruction d'arrêt de moteur et d'une instruction de démarrage de moteur ; l'APU détermine si l'instruction d'arrêt d'urgence de moteur n'est pas permise, si l'instruction d'arrêt de moteur n'est pas permise, et si l'instruction de démarrage de moteur est reçue ; si l'instruction d'arrêt d'urgence de moteur n'est pas permise, l'instruction d'arrêt de moteur n'est pas permise et l'instruction de démarrage de moteur est reçue, l'APU détermine en outre si le nombre d'échecs de démarrage est inférieur à une valeur seuil autorisée du nombre d'échecs de démarrage ; et si l'APU détermine que le nombre d'échecs de démarrage est inférieur à la valeur seuil autorisée du nombre d'échecs de démarrage, commute le prolongateur d'autonomie vers une condition de fonctionnement de démarrage. Selon le procédé de commande de démarrage de moteur, lorsqu'une commande de démarrage de moteur est réalisée, si une demande d'arrêt ou un échec de démarrage est détecté(e), une réponse appropriée à une unité de commande de véhicule est garantie, et la sécurité de pièces susceptibles d'être défaillantes est garantie.
PCT/CN2016/102595 2015-12-30 2016-10-19 Véhicule électrique à prolongateur d'autonomie et procédé de commande de démarrage de moteur associé, et système WO2017113939A1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112550265A (zh) * 2020-11-27 2021-03-26 上汽大众汽车有限公司 一种混合动力车辆发动机启停动态控制方法及系统

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105774571B (zh) * 2015-12-30 2018-04-03 北京新能源汽车股份有限公司 增程式电动汽车及其发动机起动控制方法、系统
CN108045266B (zh) * 2017-11-09 2020-10-16 浙江吉利新能源商用车有限公司 一种増程器启动控制方法及装置
CN108422991A (zh) * 2018-03-29 2018-08-21 吉利汽车研究院（宁波）有限公司 灵活四缸机的控制方法、装置及系统
CN108583299B (zh) * 2018-04-03 2021-01-15 浙江吉利控股集团有限公司 一种车辆增程装置的控制方法及系统
CN108873863B (zh) * 2018-06-28 2021-06-04 中车株洲电力机车有限公司 一种机车间指令的传输方法、系统及重联机车
CN110395248A (zh) * 2019-07-29 2019-11-01 浙江吉利新能源商用车集团有限公司 一种增程器的启动控制方法及控制系统
CN112918462B (zh) * 2019-12-05 2022-04-29 广州汽车集团股份有限公司 一种混合动力汽车发动机起动控制方法、系统及汽车
CN111348031B (zh) * 2020-03-27 2021-04-27 浙江吉利汽车研究院有限公司 一种用于混合动力车辆的控制方法及系统
CN112622867A (zh) * 2020-12-25 2021-04-09 奇瑞汽车股份有限公司 用于混合动力汽车的快速启动系统和方法
CN112660104B (zh) * 2021-01-05 2022-07-05 吉林大学 一种增程式电动汽车辅助动力单元起动控制方法
WO2023272481A1 (fr) * 2021-06-29 2023-01-05 宁波吉利罗佑发动机零部件有限公司 Procédé et appareil pour commander l'arrêt d'un moteur, dispositif électronique et support de stockage
CN113507237B (zh) * 2021-07-21 2023-03-21 中冶赛迪工程技术股份有限公司 一种优化变频器飞车启动的方法
CN113844430A (zh) * 2021-08-26 2021-12-28 江铃汽车股份有限公司 一种混合动力车辆发动机启停动态控制方法
CN114228691B (zh) * 2021-12-03 2024-04-26 清华大学苏州汽车研究院（吴江） 一种混合动力汽车发动机动态协调控制方法和装置
CN115163367B (zh) * 2022-06-07 2023-06-09 东风柳州汽车有限公司 保护起动机的起动控制方法、设备、存储介质及装置
CN115009264A (zh) * 2022-07-18 2022-09-06 中国第一汽车股份有限公司 混动汽车的起机控制方法、装置、汽车及介质

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2958580B1 (fr) * 2010-04-12 2012-04-20 Microcar Vehicule quadricycle electrique leger ou lourd a autonomie amelioree
CN102975624A (zh) * 2012-11-01 2013-03-20 联合汽车电子有限公司 增程式电动汽车的增程控制系统
CA2895935A1 (fr) * 2013-01-11 2014-07-17 Honda Motor Co., Ltd. Procede de commande et dispositif de commande d'un vehicule hybride
CN103935226A (zh) * 2014-04-22 2014-07-23 联合汽车电子有限公司 增程式混合动力汽车的动力系统及其控制方法
WO2015062725A1 (fr) * 2013-11-04 2015-05-07 Continental Automotive France Procédé de prévention de calage d'un moteur utilisant une estimation de vitesse de rotation dudit moteur
CN105774571A (zh) * 2015-12-30 2016-07-20 北京新能源汽车股份有限公司 增程式电动汽车及其发动机起动控制方法、系统

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103010047B (zh) * 2011-09-27 2017-03-08 韩群山 插电增程式电动车控制器
CN103381827A (zh) * 2012-05-03 2013-11-06 于树怀 增程式汽车的启动控制方法
CN104421089B (zh) * 2013-09-11 2016-08-10 上海汽车集团股份有限公司 混合动力汽车的发动机启动系统及方法
CN105620299B (zh) * 2015-12-21 2018-09-11 北京新能源汽车股份有限公司 增程式电动汽车増程器起动控制方法和装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2958580B1 (fr) * 2010-04-12 2012-04-20 Microcar Vehicule quadricycle electrique leger ou lourd a autonomie amelioree
CN102975624A (zh) * 2012-11-01 2013-03-20 联合汽车电子有限公司 增程式电动汽车的增程控制系统
CA2895935A1 (fr) * 2013-01-11 2014-07-17 Honda Motor Co., Ltd. Procede de commande et dispositif de commande d'un vehicule hybride
WO2015062725A1 (fr) * 2013-11-04 2015-05-07 Continental Automotive France Procédé de prévention de calage d'un moteur utilisant une estimation de vitesse de rotation dudit moteur
CN103935226A (zh) * 2014-04-22 2014-07-23 联合汽车电子有限公司 增程式混合动力汽车的动力系统及其控制方法
CN105774571A (zh) * 2015-12-30 2016-07-20 北京新能源汽车股份有限公司 增程式电动汽车及其发动机起动控制方法、系统

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112550265A (zh) * 2020-11-27 2021-03-26 上汽大众汽车有限公司 一种混合动力车辆发动机启停动态控制方法及系统

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