CN105966226A - Vehicle control system of plug-in gas-electric hybrid power bus and control method of vehicle control system - Google Patents
Vehicle control system of plug-in gas-electric hybrid power bus and control method of vehicle control system Download PDFInfo
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- CN105966226A CN105966226A CN201610411999.8A CN201610411999A CN105966226A CN 105966226 A CN105966226 A CN 105966226A CN 201610411999 A CN201610411999 A CN 201610411999A CN 105966226 A CN105966226 A CN 105966226A
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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
- 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/24—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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the combustion engines
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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
- 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
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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
- 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/28—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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the electric energy storing means, e.g. batteries or capacitors
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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
- 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/36—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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
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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
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/40—Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- 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
- 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
- Y02T10/62—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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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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
- 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
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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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Abstract
本发明提供了一种插电式气电混合动力客车整车控制系统及其控制方法，该整车控制系统包括整车控制器、发动机及其控制器、离合器、驱动电机及其控制器、辅电机及其控制器、变速器及其控制器、高压电池及其管理系统、高压配电盒、高压转向系统、高压气泵系统、高压空调、直流/直流转换器、仪表控制器、起动机、电机水泵、高压控制继电器、充电口。其中，发动机采用燃气发动机，辅电机置于发动机前，由皮带与发动机相连，驱动电机置于发动机和变速器之间，驱动电机后加装变速器系统，之后连接主减速器和车轮。以整车控制器为核心的整车控制系统，综合整车及各总成的信息，基于整车及动力总成系统模式切换协调控制方法，可以充分发挥插电式气电混合动力客车各子系统的优势，达到整车性能最优。
The invention provides a plug-in gas-electric hybrid vehicle control system and its control method. The vehicle control system includes a vehicle controller, an engine and its controller, a clutch, a driving motor and its controller, an auxiliary Motor and its controller, transmission and its controller, high-voltage battery and its management system, high-voltage power distribution box, high-voltage steering system, high-voltage air pump system, high-voltage air conditioner, DC/DC converter, instrument controller, starter, motor water pump , High voltage control relay, charging port. Among them, the engine adopts a gas engine, the auxiliary motor is placed in front of the engine, and is connected to the engine by a belt, the driving motor is placed between the engine and the transmission, a transmission system is installed behind the driving motor, and then the main reducer and the wheels are connected. The vehicle control system with the vehicle controller as the core, which integrates the information of the vehicle and each assembly, and based on the coordinated control method of mode switching of the vehicle and powertrain system, can give full play to the various components of the plug-in gas-electric hybrid bus. The advantages of the system can achieve the best performance of the whole vehicle.
Description
技术领域technical field
本发明涉及一种汽车技术领域，特别涉及一种插电式气电混合动力客车整车控制系统及其控制方法。The invention relates to the technical field of automobiles, in particular to a control system and a control method for a plug-in gas-electric hybrid passenger car.
背景技术Background technique
随着混合动力公交客车在国内各大中小城市的示范运营，其显著的节能减排效果得到人们的一致认可，但由于电池关键技术尚未得到突破，因此常规混合动力客车在燃油经济性和排放性能的提升仍有很大空间。插电式混合动力客车作为常规混合动力客车的升级版，可通过在晚间用电低谷期将动力电池接入电网充电的形式，实现了对更为廉价清洁能源的充分利用，相比常规混合动力客车电池电能自给自足的形式，插电式混合动力客车可以更多地进行纯电动行驶，从而使整车燃油经济性得到显著提升。另外，用天然气发动机替代原有的柴油发动机，可以提升发动机自身的燃油经济性，并极大地改善整车的排放性能，进一步提升混合动力公交客车的节能减排效果。With the demonstration operation of hybrid electric buses in various large, medium and small cities in China, its remarkable energy-saving and emission-reduction effects have been unanimously recognized by people. There is still a lot of room for improvement. As an upgraded version of conventional hybrid electric buses, plug-in hybrid electric buses can realize the full utilization of cheaper and clean energy by connecting the power battery to the grid for charging during the low power consumption period at night. In the form of self-sufficiency in the electric energy of the bus battery, the plug-in hybrid electric bus can carry out more pure electric driving, so that the fuel economy of the whole vehicle is significantly improved. In addition, replacing the original diesel engine with a natural gas engine can improve the fuel economy of the engine itself, greatly improve the emission performance of the vehicle, and further enhance the energy-saving and emission-reduction effects of hybrid buses.
插电式混合动力客车是由多个子系统构成的一个复杂的整车系统，主要包括发动机系统(柴油或者天然气)、高压储能系统、驱动电机系统、辅电机系统(BSG或ISG电机)、变速器系统、高压电动附件系统(如电动转向、电动气泵和高压空调等)、仪表等。各子系统几乎都通过自己的控制器(ECU)来完成各自的功能和目标。同时，为了满足整车的动力性、经济性、安全性和舒适性指标，一方面必须具有智能化的人车交互接口，另一方面，各系统还必须彼此协作，优化匹配。因此，电动汽车必须要有一个整车控制器来管理各个子系统，使整车达到相应的技术目标。Plug-in hybrid electric bus is a complex vehicle system composed of multiple subsystems, mainly including engine system (diesel or natural gas), high-voltage energy storage system, drive motor system, auxiliary motor system (BSG or ISG motor), transmission system, high-voltage electric accessory system (such as electric steering, electric air pump and high-pressure air conditioner, etc.), instrumentation, etc. Each subsystem almost completes its own functions and goals through its own controller (ECU). At the same time, in order to meet the power, economy, safety and comfort indicators of the vehicle, on the one hand, it must have an intelligent human-vehicle interaction interface; on the other hand, each system must cooperate with each other to optimize matching. Therefore, electric vehicles must have a vehicle controller to manage each subsystem, so that the vehicle can achieve the corresponding technical goals.
以往专利中，专利CN201010589557.5公开了一种插电式双离合器并联型混合动力客车整车控制系统，该系统采用机械离合器和手动变速箱，自动化程度不足，且整车控制系统包含的电动附件较少，集成化程度较低；专利CN201220051336.7公开了一种插电式混联混合动力客车动力系统，该系统采用双电机无变速箱方案，辅电机采用BSG连接形式，这样整车低速时发动机无法直接介入驱动，系统效率较低，且爬坡性能不足；专利CN201320300897.0公开了一种双行星排双电机混联混合动力构型系统，该系统采用行星排结构代替传统的变速箱，但该结构复杂，控制难度较大，可靠性不高；专利CN101987624.A公开了一种混合动力客车整车工作模式切换控制方法，该方法是基于单电机并联混合动力系统，整车工作模式划分较简单，不适用于插电式双电机混联式混合动力系统。Among the previous patents, the patent CN201010589557.5 discloses a plug-in dual-clutch parallel hybrid electric vehicle control system, which uses a mechanical clutch and a manual gearbox, and the degree of automation is insufficient, and the electric accessories included in the vehicle control system Fewer and less integrated; Patent CN201220051336.7 discloses a plug-in hybrid electric bus power system, the system adopts a dual-motor without gearbox scheme, and the auxiliary motor adopts BSG connection form, so that when the vehicle is low-speed The engine cannot be directly involved in the drive, the system efficiency is low, and the climbing performance is insufficient; the patent CN201320300897.0 discloses a double planetary row double motor hybrid configuration system, which uses a planetary row structure instead of the traditional gearbox. However, the structure is complicated, the control is difficult, and the reliability is not high; patent CN101987624.A discloses a hybrid electric bus vehicle working mode switching control method, the method is based on a single-motor parallel hybrid system, and the vehicle working mode is divided Simpler and not suitable for plug-in dual-motor hybrid systems.
发明内容Contents of the invention
为了解决上述问题，本发明的目的是提供了一种插电式气电混合动力客车整车控制系统及其控制方法，该系统结构布置简单灵活，集成化程度较高，整车控制功能完善，自动化程度高，以克服现有混合动力客车整车控制系统结构复杂、集成化程度低、燃油经济性差、系统效率低的问题。In order to solve the above problems, the purpose of the present invention is to provide a plug-in gas-electric hybrid passenger car vehicle control system and its control method, the system structure layout is simple and flexible, the degree of integration is high, the vehicle control function is perfect, High degree of automation to overcome the problems of complex structure, low degree of integration, poor fuel economy and low system efficiency of the existing hybrid electric bus control system.
本发明采用如下技术方案：The present invention adopts following technical scheme:
一种插电式气电混合动力客车整车控制系统包括整车控制器、发动机及其控制器、离合器、驱动电机及其控制器、辅电机及其控制器、变速器及其控制器、高压电池及其管理系统、高压配电盒、高压转向系统、高压气泵系统、高压空调、直流/直流转换器、仪表控制器、起动机、电机水泵、高压控制继电器、充电口。A plug-in gas-electric hybrid vehicle control system includes a vehicle controller, an engine and its controller, a clutch, a drive motor and its controller, an auxiliary motor and its controller, a transmission and its controller, and a high-voltage battery And its management system, high-voltage power distribution box, high-voltage steering system, high-voltage air pump system, high-voltage air conditioner, DC/DC converter, instrument controller, starter, motor water pump, high-voltage control relay, charging port.
其中，发动机采用经济性与排放兼顾的燃气发动机，辅电机置于发动机前，由皮带与发动机相连，主要用于起/停发动机和发动机怠速充电；驱动电机置于发动机和变速器之间，主要用于纯电动驱动，行车发电，联合驱动助力，制动能量回收等；驱动电机后加装变速器系统，可以优化全车速段发动机和电机的效率，之后连接主减速器和车轮。以整车控制器为核心的整车控制系统，综合整车及各总成的信息，基于整车及驱动系统模式管理的控制方法，可以充分发挥插电式气电混合动力客车各子系统的优势，达到整车性能最优。Among them, the engine adopts a gas engine with both economical and emission considerations. The auxiliary motor is placed in front of the engine and is connected to the engine by a belt. It is mainly used for starting/stopping the engine and charging the engine at idle speed; It is used for pure electric drive, driving power generation, combined drive boost, braking energy recovery, etc.; after driving the motor, a transmission system can be installed to optimize the efficiency of the engine and motor at all speeds, and then connect the final reducer and wheels. The vehicle control system with the vehicle controller as the core, which integrates the information of the vehicle and each assembly, and the control method based on the mode management of the vehicle and drive system, can give full play to the functions of each subsystem of the plug-in gas-electric hybrid bus. Advantages to achieve the best vehicle performance.
本发明采用高速CAN网络控制系统，以整车控制器为主节点，分为传统动力CAN和混合动力CAN两个子网络，其中发动机控制器和变速器控制器同属于传统动力CAN子网；辅电机控制器、驱动电机控制器、高压电池管理系统、高压气泵控制器、高压转向油泵控制器、直流/直流转换控制器和高压空调控制器等高压部件同属于混合动力CAN子网，整车控制器和仪表控制器则同时连接至两个网络。The present invention adopts a high-speed CAN network control system, takes the vehicle controller as the main node, and is divided into two sub-networks, the traditional power CAN and the hybrid power CAN, wherein the engine controller and the transmission controller belong to the traditional power CAN subnet; the auxiliary motor control High-voltage components such as the drive motor controller, high-voltage battery management system, high-voltage air pump controller, high-voltage steering oil pump controller, DC/DC converter controller, and high-voltage air-conditioning controller belong to the hybrid CAN subnet. The vehicle controller and The instrumentation controller is connected to both networks simultaneously.
本发明采用分路式高压管理系统，将高压部件按照功能分类进行独立的高压回路上下电管理，共分为4个高压回路，其中辅电机和驱动电机同属于一个高压回路，高压转向油泵和电动气泵同属于一个高压回路，直流/直流转换器和高压空调同属于一个高压回路，整车外接充电机接口回路属于一个高压回路。The present invention adopts a split-type high-voltage management system, and the high-voltage components are classified into independent high-voltage circuits for power on and off management according to their functions. They are divided into four high-voltage circuits, in which the auxiliary motor and the drive motor belong to the same high-voltage circuit, and the high-voltage steering oil pump and electric motor The air pump belongs to the same high-voltage circuit, the DC/DC converter and the high-voltage air conditioner belong to the same high-voltage circuit, and the circuit connected to the external charger interface of the vehicle belongs to the same high-voltage circuit.
整车控制器作为整个控制系统的核心，其硬线信号输入部分连接钥匙门信号、加速踏板信号、制动踏板信号、充电开关信号、驻车制动开关信号、车下起机开关信号和车下停机开关信号等，输出部分控制有电机水泵控制、起动机控制以及高压回路继电器控制等，其它总成部件则通过CAN网络实现对其的监控与控制。The vehicle controller is the core of the entire control system, and its hard-line signal input part is connected to the key door signal, accelerator pedal signal, brake pedal signal, charging switch signal, parking brake switch signal, vehicle start switch signal and vehicle Down stop switch signal, etc., the output part controls include motor water pump control, starter control and high voltage circuit relay control, etc. Other assembly components are monitored and controlled through the CAN network.
基于以上整车控制系统构型及配置，本发明的混合动力客车整车控制系统具备发动机怠速启停、纯电动驱动、发动机单独驱动、发动机驱动且发电、联合驱动以及滑行和制动能量回收功能等混合动力客车的全部功能。Based on the configuration and configuration of the vehicle control system above, the vehicle control system of the hybrid electric bus of the present invention has the functions of engine idling start and stop, pure electric drive, engine independent drive, engine drive and power generation, combined drive, coasting and braking energy recovery functions And so on all the functions of the hybrid bus.
一种插电式气电混合动力客车整车控制系统的控制方法，该控制方法使用上述的插电式气电混合动力客车整车控制系统，并采用基于整车及动力总成系统模式切换协调的控制方法，包括以下几个步骤：A control method for a vehicle control system of a plug-in gas-electric hybrid bus, the control method uses the above-mentioned plug-in gas-electric hybrid bus control system, and adopts a method based on the mode switching coordination of the vehicle and the powertrain system The control method includes the following steps:
其中，整车工作模式可分为初始化模式、充电模式、正常驱动模式、跛行回家模式和安全模式。Among them, the vehicle working mode can be divided into initialization mode, charging mode, normal driving mode, limp home mode and safety mode.
1)整车初始化模式下，当条件C1(钥匙门OFF且充电枪已连接)满足时，整车控制器控制充电高压回路继电器闭合，整车进入充电模式，通过外接充电机给整车高压电池充电；在充电模式下，当条件C2(高压电池充电完成或充电枪已断开)满足时，整车返回初始化模式，整车控制器控制充电高压回路继电器断开，整车结束充电过程，整车控制器控制各总成系统休眠；在充电模式下，当条件C7(高压电池充电故障或充电机故障)满足时，整车进入安全模式，整车控制器控制充电高压回路继电器断开，整车结束充电过程，整车控制器控制各总成系统进入安全模式；1) In the vehicle initialization mode, when the condition C1 (the key door is OFF and the charging gun is connected) is satisfied, the vehicle controller controls the charging high-voltage circuit relay to close, and the vehicle enters the charging mode, and the high-voltage battery of the vehicle is charged through an external charger. Charging; in the charging mode, when the condition C2 (the high-voltage battery charging is completed or the charging gun is disconnected) is satisfied, the vehicle returns to the initialization mode, the vehicle controller controls the charging high-voltage circuit relay to disconnect, the vehicle ends the charging process, and the vehicle returns to the initialization mode. The vehicle controller controls each assembly system to sleep; in the charging mode, when the condition C7 (high-voltage battery charging failure or charger failure) is satisfied, the whole vehicle enters the safety mode, and the whole vehicle controller controls the charging high-voltage circuit relay to disconnect, and the whole vehicle After the charging process of the car is completed, the vehicle controller controls each assembly system to enter the safe mode;
2)整车初始化模式下，当条件C3(整车高压回路总成严重故障且发动机故障)满足时，整车进入安全模式，整车控制器控制全部高压回路继电器断开，并控制各总成系统进入安全模式；2) In the vehicle initialization mode, when the condition C3 (vehicle high-voltage circuit assembly serious failure and engine failure) is satisfied, the vehicle enters the safety mode, and the vehicle controller controls all high-voltage circuit relays to be disconnected, and controls each assembly The system enters safe mode;
3)整车初始化模式下，当条件C4(整车高压回路某一总成故障或发动机故障或变速箱故障)满足时，整车进入跛行回家模式，整车控制器关闭故障总成系统，限制整车部分功能，并提示驾驶员立即靠边停车或跛行至服务站进行维修；在跛行回家模式下，当条件C3(整车高压回路总成严重故障且发动机故障)满足时，整车进入安全模式，整车控制器控制全部高压回路继电器断开，并控制各总成系统进入安全模式；3) In the vehicle initialization mode, when the condition C4 (an assembly failure of the vehicle high-voltage circuit or engine failure or gearbox failure) is satisfied, the vehicle enters the limp home mode, and the vehicle controller closes the faulty assembly system, Restrict some functions of the vehicle, and remind the driver to pull over immediately or limp to the service station for maintenance; in limp home mode, when the condition C3 (vehicle high-voltage circuit assembly serious failure and engine failure) is met, the vehicle enters Safety mode, the vehicle controller controls all high-voltage circuit relays to be disconnected, and controls each assembly system to enter the safety mode;
4)整车初始化模式下，当条件C5(整车各总成系统状态正常且驱动高压各回路上电成功)满足时，整车进入正常驱动模式，整车控制器控制各总成系统正常工作；在正常驱动模式下，当条件C6(钥匙门处于OFF)满足时，整车返回初始化模式，整车控制器控制驱动高压回路继电器断开，并控制各总成系统休眠；在正常驱动模式下，当条件C4(整车高压回路某一总成故障或发动机故障或变速箱故障)满足时，整车进入跛行回家模式，整车控制器关闭故障总成系统，限制整车部分功能，并提示驾驶员立即靠边停车或跛行至服务站进行维修；在正常驱动模式下，当条件C3(整车高压回路总成严重故障且发动机故障)满足时，整车进入安全模式，整车控制器控制全部高压回路继电器断开，并控制各总成系统进入安全模式。4) In the vehicle initialization mode, when the condition C5 (each assembly system of the vehicle is in normal state and each circuit of the driving high voltage is powered on successfully) is satisfied, the vehicle enters the normal driving mode, and the vehicle controller controls each assembly system to work normally ;In the normal driving mode, when the condition C6 (the key door is in OFF) is satisfied, the vehicle returns to the initialization mode, the vehicle controller controls the drive high-voltage circuit relay to disconnect, and controls each assembly system to sleep; in the normal driving mode , when condition C4 (failure of a certain assembly of the high-voltage circuit of the vehicle or failure of the engine or gearbox) is satisfied, the vehicle enters the limp home mode, the vehicle controller closes the faulty assembly system, restricts some functions of the vehicle, and Prompt the driver to pull over immediately or limp to the service station for maintenance; in the normal driving mode, when the condition C3 (vehicle high-voltage circuit assembly serious failure and engine failure) is met, the vehicle enters the safe mode, and the vehicle controller controls All high-voltage circuit relays are disconnected, and each assembly system is controlled to enter a safe mode.
正常驱动模式下可分为停车模式、纯电动驱动模式、过渡模式和混合驱动模式。The normal driving mode can be divided into parking mode, pure electric driving mode, transition mode and hybrid driving mode.
1)正常驱动模式下默认进入停车模式，当条件C11(换挡手柄挂入前进挡或倒挡且实际挡位不为零)满足时进入驱动模式；驱动模式下，当条件C12(换挡手柄挂入空挡且实际挡位为零)满足时，返回停车模式；1) In the normal driving mode, it enters the parking mode by default, and enters the driving mode when the condition C11 (the shift handle is engaged in forward gear or reverse gear and the actual gear is not zero) is satisfied; in the driving mode, when the condition C12 (the shift handle When the neutral gear is engaged and the actual gear is zero), return to the parking mode;
2)驱动模式下优先进入纯电动驱动模式，此时整车控制器关闭发动机，请求TCU分离离合器，驱动电机驱动整车行驶，当条件C13(车速高于纯电动车速上限且驾驶员需求扭矩大于纯电动扭矩上限)满足时，进入过渡模式，整车控制器启动发动机，并请求TCU接合离合器；过渡模式下，当条件C15(发动机启动成功且离合器处于完全接合状态)满足时，进入混合驱动模式，此时发动机为主驱动源，驱动电机为辅助驱动源；混合驱动模式下，当条件C16(车速低于纯电动车速上限或驾驶员需求扭矩小于纯电动扭矩上限)满足时，返回过渡模式，整车控制器请求TCU分离离合器，控制EMS关闭发动机；过渡模式下，当条件C14(离合器处于完全分离状态)满足时，返回纯电动驱动模式，驱动电机驱动整车行驶。2) In the drive mode, the priority is to enter the pure electric drive mode. At this time, the vehicle controller shuts down the engine, requests the TCU to disengage the clutch, and drives the motor to drive the vehicle. Pure electric torque upper limit) is satisfied, enter the transition mode, the vehicle controller starts the engine, and requests the TCU to engage the clutch; in the transition mode, when the condition C15 (the engine is started successfully and the clutch is fully engaged) is satisfied, the hybrid drive mode is entered , at this time the engine is the main driving source, and the driving motor is the auxiliary driving source; in the hybrid driving mode, when the condition C16 (vehicle speed is lower than the upper limit of pure electric vehicle speed or the driver's demand torque is lower than the upper limit of pure electric torque) is satisfied, return to transition mode, The vehicle controller requests the TCU to disengage the clutch and controls the EMS to shut down the engine; in the transition mode, when the condition C14 (clutch is in a completely disengaged state) is met, it returns to the pure electric drive mode and drives the motor to drive the vehicle.
动力总成模式下按照整车状态及驾驶员输入不同驱动力分配算法可分为：机械制动、滑行/制动能量回收、纯电动驱动、发动机驱动且发电、发动机单独驱动和联合驱动。In the powertrain mode, according to the state of the vehicle and the different driving force distribution algorithms input by the driver, it can be divided into: mechanical braking, coasting/braking energy recovery, pure electric drive, engine drive with power generation, engine independent drive and combined drive.
1)动力总成模式下，首先根据当前车速及驾驶员油门踏板和制动踏板输入信号，计算此时驾驶员需求扭矩；1) In the powertrain mode, first calculate the driver's demand torque according to the current vehicle speed and the input signals of the driver's accelerator pedal and brake pedal;
2)当需求扭矩小于或等于零时，进入滑行或制动减速工况，当高压电池SOC小于上限时，进入滑行/制动能量回收，整车控制器控制驱动电机输出负扭矩，将车辆动能转化为电能存储到高压电池中；当高压电池SOC大于上限时，取消滑行/制动能量回收功能，进入机械制动；2) When the required torque is less than or equal to zero, it enters the coasting or braking deceleration mode. When the high-voltage battery SOC is less than the upper limit, it enters the coasting/braking energy recovery. The vehicle controller controls the drive motor to output negative torque to convert the vehicle kinetic energy Store electric energy in the high-voltage battery; when the SOC of the high-voltage battery is greater than the upper limit, cancel the coasting/braking energy recovery function and enter the mechanical brake;
3)当需求扭矩大于零时，进入驱动加速工况，如果需求扭矩小于TM电机最大许用扭矩且电池SOC大于下限时，驱动电机单独驱动整车行驶；否则，如果需求扭矩小于发动机优化区下限时，发动机驱动且发电；如果需求扭矩大于发动机优化区下限且需求扭矩小于发动机优化区上限时，发动机单独驱动，否则发动机与驱动电机联合驱动。3) When the required torque is greater than zero, it enters the driving acceleration condition. If the required torque is less than the maximum allowable torque of the TM motor and the battery SOC is greater than the lower limit, the drive motor drives the vehicle alone; otherwise, if the required torque is less than the lower limit of the engine optimization area Time limit, the engine drives and generates electricity; if the demand torque is greater than the lower limit of the engine optimization zone and the demand torque is less than the upper limit of the engine optimization zone, the engine is driven alone, otherwise the engine and the drive motor are jointly driven.
由上述对本发明结构及控制算法的描述可知，和现有技术相比，本发明具有如下优点：本发明相对于单电机并联构型方案，增加了BSG辅助电机，并匹配燃气发电机、变速器系统，高压储能系统外接充电设备，形成插电式气电双电机深混构型，从而使混合动力客车的功能更加完善，混合度更高。通过总成参数的合理匹配，采用基于整车及驱动系统模式管理的控制方法，整车控制器可充分发挥三动力源的相互协同特性，使整车性能更加优越，节能优势也更加明显；另外，本发明的控制系统以整车控制器为主节点，基于高速CAN总线的分布式动力系统控制网络，通过该网络，整车控制器可以对混合动力客车动力总成链路的各个环节进行管理、协调和监控，提高整车能量利用效率，确保车辆安全性和可靠性；另外本发明采用分路式高压管理系统，将高压部件按照功能分类进行独立的高压回路上下电管理，提高各高压部件的独立性，尽可能在某个高压部件损坏时，其它高压部件仍可以继续工作，整车可以靠边停车或跛行回家，保证整车运行过程中的安全性。From the above description of the structure and control algorithm of the present invention, it can be seen that compared with the prior art, the present invention has the following advantages: Compared with the single-motor parallel configuration scheme, the present invention adds a BSG auxiliary motor and matches the gas generator and transmission system , The high-voltage energy storage system is connected to external charging equipment to form a plug-in gas-electric dual-motor deep hybrid configuration, so that the functions of the hybrid bus are more perfect and the degree of mixing is higher. Through the reasonable matching of assembly parameters and the control method based on the management of the complete vehicle and drive system, the vehicle controller can give full play to the synergistic characteristics of the three power sources, making the vehicle performance more superior and the energy-saving advantages more obvious; in addition , the control system of the present invention takes the vehicle controller as the main node, and is based on the distributed power system control network of the high-speed CAN bus. Through this network, the vehicle controller can manage each link of the hybrid electric bus powertrain link , coordination and monitoring, improve the energy utilization efficiency of the vehicle, and ensure the safety and reliability of the vehicle; in addition, the present invention adopts a split-type high-voltage management system, and conducts independent power-on and power-on management of the high-voltage circuit according to the functional classification of the high-voltage components, so as to improve the efficiency of each high-voltage component. As far as possible, when a high-voltage component is damaged, other high-voltage components can still continue to work, and the whole vehicle can be pulled over or limped home to ensure the safety of the whole vehicle during operation.
附图说明Description of drawings
图1是本发明专利的整车控制系统结构及部件关系图。Fig. 1 is a structural and component relationship diagram of the whole vehicle control system of the patent of the present invention.
图2是本发明专利的整车控制系统整车模式管理流程图。Fig. 2 is a flow chart of vehicle mode management of the vehicle control system of the patent of the present invention.
图3是本发明专利的整车控制系统驱动模式管理流程图。Fig. 3 is a flow chart of the drive mode management of the vehicle control system of the patent of the present invention.
图4是本发明专利的整车控制系统动力总成模式管理流程图。Fig. 4 is a flow chart of the powertrain mode management of the vehicle control system of the patent of the present invention.
(附图标记说明)(Description of Reference Signs)
1-整车控制器、2-辅电机及其控制器、3-发动机及其控制器、4-离合器、5-驱动电机及其控制器、6-变速器及其控制器、7-高压电池及其管理系统、8-高压配电盒、9-充电口、10-电机水泵、11-起动机、12-高压控制继电器、13-仪表控制器、14-高压空调、15-直流/直流转换器、16-高压气泵系统、17-高压转向系统1-Vehicle controller, 2-Auxiliary motor and its controller, 3-Engine and its controller, 4-Clutch, 5-Drive motor and its controller, 6-Transmission and its controller, 7-High voltage battery and Its management system, 8-high voltage power distribution box, 9-charging port, 10-motor water pump, 11-starter, 12-high voltage control relay, 13-instrument controller, 14-high voltage air conditioner, 15-DC/DC converter , 16-high pressure air pump system, 17-high pressure steering system
具体实施方式detailed description
以下将结合附图对本发明技术方案做进一步的阐述。The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings.
参照图1，一种插电式气电混合动力客车整车控制系统包括整车控制器1、发动机及其控制器3、离合器4、驱动电机及其控制器5、辅电机及其控制器2、变速器及其控制器6、高压电池及其管理系统7、高压配电盒8、高压转向系统17、高压气泵系统16、高压空调14、直流/直流转换器15、仪表控制器13、起动机11、电机水泵10、高压控制继电器12、充电口9等。以上部件的连接关系除动力总成(如发动机、离合器、驱动电机、辅电机和变速器)通过机械方式连接外，其它控制器及附件通过整车电气线束连接，比如低压连接线束、高压连接线束、CAN网络连接线束(动力CAN和混动CAN)，与图1的四种线型注释对应，整车控制器对各部件的控制信号正是通过这些电气线束来传递的。Referring to Fig. 1, a vehicle control system for a plug-in gas-electric hybrid electric vehicle includes a vehicle controller 1, an engine and its controller 3, a clutch 4, a drive motor and its controller 5, an auxiliary motor and its controller 2 , transmission and its controller 6, high-voltage battery and its management system 7, high-voltage power distribution box 8, high-voltage steering system 17, high-voltage air pump system 16, high-voltage air conditioner 14, DC/DC converter 15, instrument controller 13, starter 11. Motor water pump 10, high voltage control relay 12, charging port 9, etc. The connection relationship of the above components is except that the powertrain (such as engine, clutch, drive motor, auxiliary motor and transmission) is connected mechanically, other controllers and accessories are connected through the electrical wiring harness of the vehicle, such as low-voltage connection harness, high-voltage connection harness, The CAN network connection harness (power CAN and hybrid CAN) corresponds to the four line annotations in Figure 1, and the control signals of the vehicle controller to each component are transmitted through these electrical harnesses.
其中，发动机采用经济性与排放兼顾的燃气发动机，辅电机置于发动机前，由皮带与发动机相连，主要用于起/停发动机和发动机怠速充电；驱动电机置于发动机和变速器之间，主要用于纯电动驱动，行车发电，联合驱动助力，制动能量回收等；驱动电机后加装变速器系统，可以优化全车速段发动机和电机的效率，之后连接主减速器和车轮。以整车控制器为核心的整车控制系统，综合整车及各总成的信息，通过合理的控制方法，可以充分发挥插电式气电混合动力客车各子系统的优势，达到整车性能最优。Among them, the engine adopts a gas engine with both economical and emission considerations. The auxiliary motor is placed in front of the engine and is connected to the engine by a belt. It is mainly used for starting/stopping the engine and charging the engine at idle speed; It is used for pure electric drive, driving power generation, combined drive boost, braking energy recovery, etc.; after driving the motor, a transmission system can be installed to optimize the efficiency of the engine and motor at all speeds, and then connect the final reducer and wheels. The vehicle control system with the vehicle controller as the core, integrates the information of the vehicle and each assembly, and through a reasonable control method, can give full play to the advantages of each subsystem of the plug-in gas-electric hybrid bus to achieve vehicle performance best.
本发明采用高速CAN网络控制系统，以整车控制器为主节点，分为传统动力CAN和混合动力CAN两个子网络，其中发动机控制器和变速器控制器同属于传统动力CAN子网；辅电机控制器、驱动电机控制器、高压电池管理系统、高压气泵控制器、高压转向油泵控制器、直流/直流转换控制器和高压空调控制器等高压部件同属于混合动力CAN子网，整车控制器和仪表控制器则同时连接至两个网络。The present invention adopts a high-speed CAN network control system, takes the vehicle controller as the main node, and is divided into two sub-networks, the traditional power CAN and the hybrid power CAN, wherein the engine controller and the transmission controller belong to the traditional power CAN subnet; the auxiliary motor control High-voltage components such as the drive motor controller, high-voltage battery management system, high-voltage air pump controller, high-voltage steering oil pump controller, DC/DC converter controller, and high-voltage air-conditioning controller belong to the hybrid CAN subnet. The vehicle controller and The instrumentation controller is connected to both networks simultaneously.
本发明采用分路式高压管理系统，将高压部件按照功能分类进行独立的高压回路上下电管理，共分为4个高压回路，其中辅电机和驱动电机同属于一个高压回路，高压转向油泵和电动气泵同属于一个高压回路，直流/直流转换器和高压空调同属于一个高压回路，整车外接充电机接口回路属于一个高压回路。The present invention adopts a split-type high-voltage management system, and the high-voltage components are classified into independent high-voltage circuits for power on and off management according to their functions. They are divided into four high-voltage circuits, in which the auxiliary motor and the drive motor belong to the same high-voltage circuit, and the high-voltage steering oil pump and electric motor The air pump belongs to the same high-voltage circuit, the DC/DC converter and the high-voltage air conditioner belong to the same high-voltage circuit, and the circuit connected to the external charger interface of the vehicle belongs to the same high-voltage circuit.
整车控制器作为整个控制系统的核心，其硬线信号输入部分连接钥匙门信号、加速踏板信号、制动踏板信号、充电开关信号、驻车制动开关信号、车下起机开关信号和车下停机开关信号等，输出部分控制有电机水泵控制、起动机控制以及高压回路继电器控制等，其它总成部件则通过CAN网络实现对其的监控与控制。The vehicle controller is the core of the entire control system, and its hard-line signal input part is connected to the key door signal, accelerator pedal signal, brake pedal signal, charging switch signal, parking brake switch signal, vehicle start switch signal and vehicle Down stop switch signal, etc., the output part controls include motor water pump control, starter control and high-voltage circuit relay control, etc. Other assembly components are monitored and controlled through the CAN network.
一种插电式气电混合动力客车整车控制系统的控制方法，该控制方法使用上述的插电式气电混合动力客车整车控制系统，本发明采用基于整车及动力总成系统模式切换协调的控制方法，包括以下几个步骤：A control method for the vehicle control system of a plug-in gas-electric hybrid bus, the control method uses the above-mentioned plug-in gas-electric hybrid bus control system. Coordinated control method, including the following steps:
参照图2，整车工作模式可分为初始化模式、充电模式、正常驱动模式、跛行回家模式和安全模式。Referring to Fig. 2, the working modes of the whole vehicle can be divided into initialization mode, charging mode, normal driving mode, limp home mode and safe mode.
1)整车初始化模式下，当条件C1(钥匙门置于OFF且充电枪已连接)满足时，整车控制器控制充电高压回路继电器闭合，整车进入充电模式，通过外接充电机给整车高压电池充电；在充电模式下，当条件C2(高压电池充电完成或充电枪已断开)满足时，整车返回初始化模式，整车控制器控制充电高压回路继电器断开，整车结束充电过程，整车控制器控制各总成系统休眠；在充电模式下，当条件C7(高压电池充电故障或充电机故障)满足时，整车进入安全模式，整车控制器控制充电高压回路继电器断开，整车结束充电过程，整车控制器控制各总成系统进入安全模式；1) In the vehicle initialization mode, when the condition C1 (the key door is OFF and the charging gun is connected) is satisfied, the vehicle controller controls the charging high-voltage circuit relay to close, and the vehicle enters the charging mode, and the vehicle is charged by an external charger. High-voltage battery charging; in the charging mode, when the condition C2 (high-voltage battery charging is complete or the charging gun is disconnected) is met, the vehicle returns to the initialization mode, the vehicle controller controls the charging high-voltage circuit relay to disconnect, and the vehicle ends the charging process , the vehicle controller controls each assembly system to sleep; in the charging mode, when the condition C7 (high-voltage battery charging failure or charger failure) is satisfied, the vehicle enters the safe mode, and the vehicle controller controls the charging high-voltage circuit relay to disconnect , the charging process of the whole vehicle is completed, and the vehicle controller controls each assembly system to enter the safe mode;
2)整车初始化模式下，当条件C3(整车高压回路总成严重故障且发动机故障)满足时，整车进入安全模式，整车控制器控制全部高压回路继电器断开，并控制各总成系统进入安全模式；2) In the vehicle initialization mode, when the condition C3 (vehicle high-voltage circuit assembly serious failure and engine failure) is satisfied, the vehicle enters the safety mode, and the vehicle controller controls all high-voltage circuit relays to be disconnected, and controls each assembly The system enters safe mode;
3)整车初始化模式下，当条件C4(整车高压回路某一总成故障或发动机故障或变速箱故障)满足时，整车进入跛行回家模式，整车控制器关闭故障总成系统，限制整车部分功能，并提示驾驶员立即靠边停车或跛行至服务站进行维修；在跛行回家模式下，当条件C3(整车高压回路总成严重故障且发动机故障)满足时，整车进入安全模式，整车控制器控制全部高压回路继电器断开，并控制各总成系统进入安全模式；3) In the vehicle initialization mode, when the condition C4 (an assembly failure of the vehicle high-voltage circuit or engine failure or gearbox failure) is satisfied, the vehicle enters the limp home mode, and the vehicle controller closes the faulty assembly system, Restrict some functions of the vehicle, and remind the driver to pull over immediately or limp to the service station for maintenance; in limp home mode, when the condition C3 (vehicle high-voltage circuit assembly serious failure and engine failure) is met, the vehicle enters Safety mode, the vehicle controller controls all high-voltage circuit relays to be disconnected, and controls each assembly system to enter the safety mode;
4)整车初始化模式下，当条件C5(整车各总成系统状态正常且驱动高压各回路上电成功)满足时，整车进入正常驱动模式，整车控制器控制各总成系统正常工作；在正常驱动模式下，当条件C6(钥匙门置于OFF)满足时，整车返回初始化模式，整车控制器控制驱动高压回路继电器断开，并控制各总成系统休眠；在正常驱动模式下，当条件C4(整车高压回路某一总成故障或发动机故障或变速箱故障)满足时，整车进入跛行回家模式，整车控制器关闭故障总成系统，限制整车部分功能，并提示驾驶员立即靠边停车或跛行至服务站进行维修；在正常驱动模式下，当条件C3(整车高压回路总成严重故障且发动机故障)满足时，整车进入安全模式，整车控制器控制全部高压回路继电器断开，并控制各总成系统进入安全模式。4) In the vehicle initialization mode, when the condition C5 (each assembly system of the vehicle is in normal state and each circuit of the driving high voltage is powered on successfully) is satisfied, the vehicle enters the normal driving mode, and the vehicle controller controls each assembly system to work normally ;In normal driving mode, when condition C6 (key door is placed in OFF) is satisfied, the whole vehicle returns to initialization mode, and the vehicle controller controls the drive high-voltage circuit relay to disconnect, and controls each assembly system to sleep; in normal driving mode Under the following conditions, when the condition C4 (a certain assembly failure of the vehicle high-voltage circuit or engine failure or transmission failure) is met, the vehicle enters the limp home mode, and the vehicle controller closes the faulty assembly system to limit some functions of the vehicle. And remind the driver to pull over immediately or limp to the service station for maintenance; in the normal driving mode, when the condition C3 (vehicle high-voltage circuit assembly serious failure and engine failure) is met, the vehicle enters the safe mode, and the vehicle controller Control all high-voltage circuit relays to be disconnected, and control each assembly system to enter the safe mode.
参照图3，正常驱动模式下可分为停车模式、纯电动驱动模式、过渡模式和混合驱动模式。Referring to FIG. 3 , the normal driving mode can be divided into parking mode, pure electric driving mode, transition mode and hybrid driving mode.
1)正常驱动模式下默认进入停车模式，当条件C11(换挡手柄挂入前进挡或倒挡且实际挡位不为零)满足时进入驱动模式；驱动模式下，当条件C12(换挡手柄挂入空挡且实际挡位为零)满足时，返回停车模式；1) In the normal driving mode, it enters the parking mode by default, and enters the driving mode when the condition C11 (the shift handle is engaged in forward gear or reverse gear and the actual gear is not zero) is satisfied; in the driving mode, when the condition C12 (the shift handle When the neutral gear is engaged and the actual gear is zero), return to the parking mode;
2)驱动模式下优先进入纯电动驱动模式，此时整车控制器关闭发动机，请求TCU分离离合器，驱动电机驱动整车行驶，当条件C13(车速高于纯电动车速上限且驾驶员需求扭矩大于纯电动扭矩上限)满足时，进入过渡模式，整车控制器启动发动机，并请求TCU接合离合器；过渡模式下，当条件C15(发动机启动成功且离合器处于完全接合状态)满足时，进入混合驱动模式，此时发动机为主驱动源，驱动电机为辅助驱动源；混合驱动模式下，当条件C16(车速低于纯电动车速上限或驾驶员需求扭矩小于纯电动扭矩上限)满足时，返回过渡模式，整车控制器请求TCU分离离合器，控制EMS关闭发动机；过渡模式下，当条件C14(离合器处于完全分离状态)满足时，返回纯电动驱动模式，驱动电机驱动整车行驶。2) In the drive mode, the priority is to enter the pure electric drive mode. At this time, the vehicle controller shuts down the engine, requests the TCU to disengage the clutch, and drives the motor to drive the vehicle. Pure electric torque upper limit) is satisfied, enter the transition mode, the vehicle controller starts the engine, and requests the TCU to engage the clutch; in the transition mode, when the condition C15 (the engine is started successfully and the clutch is fully engaged) is satisfied, the hybrid drive mode is entered , at this time the engine is the main driving source, and the driving motor is the auxiliary driving source; in the hybrid driving mode, when the condition C16 (vehicle speed is lower than the upper limit of pure electric vehicle speed or the driver's demand torque is lower than the upper limit of pure electric torque) is satisfied, return to transition mode, The vehicle controller requests the TCU to disengage the clutch and controls the EMS to shut down the engine; in the transition mode, when the condition C14 (clutch is in a completely disengaged state) is met, it returns to the pure electric drive mode and drives the motor to drive the vehicle.
参照图4，动力总成模式下按照整车状态及驾驶员输入不同驱动力分配算法可分为：机械制动、滑行/制动能量回收、纯电动驱动、发动机驱动且发电、发动机单独驱动和联合驱动。Referring to Figure 4, the powertrain mode can be divided into different driving force distribution algorithms according to the vehicle state and driver input: mechanical braking, coasting/braking energy recovery, pure electric drive, engine drive with power generation, engine drive alone and joint drive.
1)动力总成模式下，首先根据当前车速及驾驶员油门踏板和制动踏板输入信号，计算此时驾驶员需求扭矩；1) In the powertrain mode, first calculate the driver's demand torque according to the current vehicle speed and the input signals of the driver's accelerator pedal and brake pedal;
2)当需求扭矩小于或等于零时，进入滑行或制动减速工况，当高压电池SOC小于上限时，进入滑行/制动能量回收，整车控制器控制驱动电机输出负扭矩，将车辆动能转化为电能存储到高压电池中；当高压电池SOC大于上限时，取消滑行/制动能量回收功能，进入机械制动；2) When the required torque is less than or equal to zero, it enters the coasting or braking deceleration mode. When the high-voltage battery SOC is less than the upper limit, it enters the coasting/braking energy recovery. The vehicle controller controls the drive motor to output negative torque to convert the vehicle kinetic energy Store electric energy in the high-voltage battery; when the SOC of the high-voltage battery is greater than the upper limit, cancel the coasting/braking energy recovery function and enter the mechanical brake;
3)当需求扭矩大于零时，进入驱动加速工况，如果需求扭矩小于TM电机最大许用扭矩且电池SOC大于下限时，驱动电机单独驱动整车行驶；否则，如果需求扭矩小于发动机优化区下限时，发动机驱动且发电；如果需求扭矩大于发动机优化区下限且需求扭矩小于发动机优化区上限时，发动机单独驱动，否则发动机与驱动电机联合驱动。3) When the required torque is greater than zero, enter the driving acceleration condition. If the required torque is less than the maximum allowable torque of the TM motor and the battery SOC is greater than the lower limit, the drive motor alone drives the vehicle; otherwise, if the required torque is less than the lower limit of the engine optimization area Time limit, the engine drives and generates electricity; if the demand torque is greater than the lower limit of the engine optimization zone and the demand torque is less than the upper limit of the engine optimization zone, the engine is driven alone, otherwise the engine and the drive motor are jointly driven.
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