CN113997924A - P0 structure hybrid vehicle type start-stop control system and control method thereof - Google Patents
P0 structure hybrid vehicle type start-stop control system and control method thereof Download PDFInfo
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- CN113997924A CN113997924A CN202111527520.4A CN202111527520A CN113997924A CN 113997924 A CN113997924 A CN 113997924A CN 202111527520 A CN202111527520 A CN 202111527520A CN 113997924 A CN113997924 A CN 113997924A
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000000446 fuel Substances 0.000 claims abstract description 39
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims abstract description 4
- 239000007858 starting material Substances 0.000 claims description 29
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 230000007547 defect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Classifications
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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
-
- 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
-
- 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
- B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
- B60W10/26—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
-
- 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
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18018—Start-stop drive, e.g. in a traffic jam
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
- F02N11/0814—Circuits or control means specially adapted for starting of engines comprising means for controlling automatic idle-start-stop
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Abstract
The invention discloses a P0 structure hybrid vehicle type start-stop control system, wherein an engine of a P0 structure hybrid vehicle type comprises a driving motor (1), and the driving motor (1) is a 48V motor; the main shaft of the driving motor (1) is connected to a crankshaft of a fuel system engine (9) through a belt transmission mechanism to provide power for the fuel engine. The invention also discloses a control method of the start-stop control system. By adopting the technical scheme, the driving motor of 48V is matched again, the low-voltage DC/DC inverter and the 48V lithium battery are added, the requirements of reducing oil consumption and emission of the whole vehicle are met, the driving performance is improved, the comfort level of drivers and passengers is improved, the product quality is further improved, and the brand value is created for enterprises.
Description
Technical Field
The invention belongs to the technical field of hybrid electric vehicle power systems. More particularly, the invention relates to a P0 structure hybrid vehicle type start-stop control system. The invention also relates to a control method of the start-stop control system.
Background
With the rapid development of economy, automobiles are gradually popularized to thousands of households, and a great amount of oil consumption and exhaust emission exist while life is facilitated. If the automobile is in urban working conditions, such as traffic lights, traffic jams, parking and the like, people are used to enable the engine to be in an idling working condition, and considerable oil consumption is generated.
The fuel consumption and emission of the automobile under the idling condition can be avoided to a certain extent, for example, the engine can be shut down under the idling condition by directly using ISS and ISG technologies of the traditional engine, although the measures can eliminate the fuel consumption of the automobile under the idling condition, the fuel consumption reducing capacity is small, the driving performance is poor, and the technical progress needs to be improved.
Disclosure of Invention
The invention provides a P0 structure hybrid vehicle type start-stop control system, which aims to meet the requirements of fuel consumption reduction and emission of a whole vehicle.
In order to achieve the purpose, the invention adopts the technical scheme that:
the invention relates to a P0 structure hybrid vehicle type start-stop control system, wherein an engine of a P0 structure hybrid vehicle type comprises a driving motor; the driving motor is a 48V motor; the main shaft of the driving motor is connected to a crankshaft of an engine of the fuel system through a belt transmission mechanism to provide power for the fuel engine.
In the braking state of the vehicle, the driving motor is used as a generator to convert the braking energy of the vehicle into electric energy.
The start-stop control system is provided with a 48V lithium battery to provide electric energy for the driving motor, and the electric energy generated by the driving motor is recovered and stored in a vehicle braking state.
The start-stop control system is provided with a low-voltage DC/DC inverter; the low voltage DC/DC inverter provides 48V and 12V voltage conversion between the 48V electrical network and the 12V electrical network on the vehicle.
The start-stop control system is provided with a BMS system, and the BMS system is a control system of a 48V lithium battery; the BMS system receives and responds to command signals for starting and stopping the whole vehicle.
The start-stop control system is provided with an EMS system, and the EMS system is a controller of the engine; the EMS system sends out a demand signal for starting and stopping the vehicle and realizes the starting and stopping of the engine according to the requirement of the whole vehicle.
The start-stop control system is provided with a starter and a starter relay; the start-stop control system starts an engine of the fuel system through a starter; the starter relay is used for controlling the on-off of a circuit of the starter.
The start-stop control system is provided with a 12V storage battery; the 12V storage battery provides electric energy for the 12V starter.
In order to achieve the same purpose as the technical scheme, the invention also provides a control method of the hybrid vehicle start-stop control system with the P0 structure, which comprises the following steps:
in the driving process, when a red light is on at a road intersection and the vehicle starting and stopping function conditions are met, a driver steps on a brake pedal, a BMS system controls a driving motor with a P0 structure to ignite, and an engine of a fuel system is flamed out and braked;
when the green light is on, and a driver steps on an accelerator pedal or releases a brake pedal, the BMS system sends a signal to be transmitted to the BMS system, and the 48V lithium battery is controlled to work to release electric energy; via a low voltage DC/DC inverter) to the drive motor; the driving motor drives the fuel system engine to rotate, and the fuel system engine is started;
in a special severe low-temperature area, when the starting resistance moment of the engine of the fuel system is larger, a signal is sent to a starter relay through an EMS system, the relay is closed, the starter works, and the engine of the fuel system is started.
When the vehicle brakes, the rotation generated by the crankshaft of the fuel system engine is transmitted to the driving motor; the driving motor generates electric energy, and the electric energy is recovered and stored by a 48V lithium battery.
By adopting the technical scheme, the driving motor of 48V is matched again, the low-voltage DC/DC inverter and the 48V lithium battery are added, the requirements of reducing oil consumption and emission of the whole vehicle are met, the driving performance is improved, the comfort level of drivers and passengers is improved, the product quality is further improved, and the brand value is created for enterprises.
Drawings
The contents of the drawings and the reference numbers in the drawings are briefly described as follows:
FIG. 1 is a schematic view of an engine and starter assembly of the P0 configuration of the present invention;
fig. 2 is a schematic diagram of the control system of the present invention.
The labels in the figure are:
1. the system comprises a driving motor (P0 structure engine), a 2 low-voltage DC/DC inverter, 3 and 48 volt lithium batteries, 4 and BMS systems (battery management system), 5 and EMS systems (engine management system), 6 and a starter relay, 7 and a starter, 8 and 12V storage batteries, 9 and a fuel system engine.
Detailed Description
The following detailed description of the embodiments of the present invention will be given in order to provide those skilled in the art with a more complete, accurate and thorough understanding of the inventive concept and technical solutions of the present invention.
The structure of P0 is as follows: the motor is arranged on a belt at the front end of the engine, a small generator (BSG) is additionally arranged on the engine and connected with the crankshaft through the belt, and when the engine runs, the crankshaft drives the engine to generate electricity. Automatic start stop, micro-mixing and mild mixing are common P0 configurations.
The invention relates to a hybrid vehicle type start-stop control system with a P0 structure, in particular to a structure selected by a hybrid vehicle, which mainly comprises an engine with a P0 structure, a low-voltage DC/DC inverter, a 48V lithium battery, a BMS system, an EMS system and the like. The structure of the invention as shown in fig. 1 and fig. 2 is a P0 structure hybrid vehicle type start-stop control system, and the engine of the P0 structure hybrid vehicle type comprises a driving motor 1.
In order to overcome the defects of the prior art and achieve the aim of meeting the requirements of reducing oil consumption and emission of the whole vehicle, the invention adopts the technical scheme that:
as shown in fig. 2, in the hybrid vehicle type start-stop control system with the P0 structure, the driving motor 1 is a 48V motor; the main shaft of the driving motor 1 is connected to a crankshaft of a fuel system engine 9 through a belt transmission mechanism to provide power for the fuel system engine.
Compared with the traditional vehicle, the technical scheme of the invention is that a start-stop control system is realized, and the start-stop function is realized by controlling the signal interaction of each system part through the start-stop control system; the vehicle has the start-stop control function, and the oil consumption and the emission of the vehicle are reduced.
The invention has the advantages that: compared with the traditional ISS (automobile start-stop system) and ISG (integrated start-stop and power generation technology), the invention cancels the original 14V generator and replaces the original 14V generator with a 48V motor, and the motor can be used as a driving motor and is connected to a crankshaft driving engine through a belt; in order to meet the requirements of customers under different conditions, the traditional 12V starter system is reserved, the change of the whole vehicle is small, and the arrangement space is effectively reduced; the fuel consumption can be effectively reduced, the defects of driving performance of the ISS and the ISG are overcome, and the requirements of greatly improving the comfort of drivers and passengers and reducing the fuel consumption are met.
In the braking state of the vehicle, the driving motor 1 serves as a generator to convert the braking energy of the vehicle into electric energy.
Driving the motor 1: the original 14V generator is eliminated, and a 48V motor is replaced, and the motor can be used as a driving motor and is connected to a crankshaft through a belt to provide power; the energy recovery device can also be used as a generator to recover the kinetic energy of the vehicle in a braking state, so that the utilization rate of the energy is improved, and the energy consumption is reduced.
The start-stop control system is provided with a 48V lithium battery 3 for providing electric energy for the driving motor 1, and the electric energy generated by the driving motor 1 is recovered and stored in a vehicle braking state.
And a 48V lithium battery 3 is added to provide electric energy for 48V electric equipment, store the energy recovered by braking and provide electric energy for starting the engine after the engine is stopped.
The start-stop control system is provided with a low-voltage DC/DC inverter 2; the low-voltage DC/DC inverter 2 provides voltage conversion of 48V and 12V between a 48V electric network and a 12V electric network on the vehicle.
On the basis of the conventional passenger vehicle, a driving motor 1 is connected with an engine of the vehicle; the start-stop control system comprises a structure that an engine gear train is matched again to relate to a 48V motor, a low-voltage DC/DC inverter and a 48V lithium battery are added, the existing passenger vehicle is changed on the basis, the requirements of oil consumption and emission of the whole vehicle are met, the driving performance is also improved, the product quality is further improved, and the brand value is created for enterprises.
The start-stop control system is provided with a BMS system 4, and the BMS system 4 is a control system of a 48V lithium battery 3; the BMS system 4 receives and responds to command signals for starting and stopping the whole vehicle.
The start-stop control system is provided with an EMS system 5, and the EMS system 5 is a controller of an engine; the EMS system 5 sends out a demand signal for starting and stopping the vehicle and realizes the starting and stopping of the engine according to the requirement of the whole vehicle.
The start-stop control system is provided with a starter 7 and a starter relay 6; the start-stop control system starts a fuel system engine 9 through a starter 7; the starter relay 6 is used for controlling the on-off of a circuit of the starter 7.
The start-stop control system is provided with a 12V storage battery 8; the 12V storage battery 8 provides electric energy for the 12V starter 7.
Under special operating conditions, the fuel system engine 9 is started through the starter 7, and the 48V system function failure caused by the power shortage of the 48V battery 3 is avoided.
In order to achieve the same purpose as the technical scheme, the invention also provides a control method of the hybrid vehicle start-stop control system with the P0 structure, which comprises the following steps:
in the driving process, when a red light is on at a road intersection and the vehicle starting and stopping function conditions are met, a driver steps on a brake pedal, the BMS system 4 controls the driving motor 1 with the P0 structure to ignite, and the fuel system engine 9 is flamed out and braked;
when the green light is on and the driver steps on the accelerator pedal or releases the brake pedal, the BMS system 4 sends a signal to the BMS system 4 to control the 48V lithium battery 3 to work and release electric energy; transmitted to the driving motor 1 through the low-voltage DC/DC inverter 2; the driving motor 1 drives the fuel system engine 9 to rotate, and the fuel system engine 9 is started;
in special severe low-temperature areas, such as the northeast, the north China and the northwest in winter, when the starting resistance moment of the fuel system engine 9 is larger, a signal is sent to the starter relay 6 through the EMS system 5, the relay is closed, the starter 7 works, and the fuel system engine 9 is started.
When the vehicle is braked, the rotation generated by the crankshaft of the fuel system engine 9 is transmitted to the driving motor 1; the drive motor 1 generates electrical energy, which is recovered and stored by a 48V lithium battery 3.
By adopting the technical scheme, the fuel consumption can be effectively reduced, the emission can be reduced, the defects of the driving performances of the ISS and the ISG can be overcome, and the comfort of a driver and passengers and the requirements for reducing the fuel consumption and the emission can be greatly improved.
The invention has been described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the specific implementation in the above-described manner, and it is within the scope of the invention to apply the inventive concept and solution to other applications without substantial modification.
Claims (9)
1. A P0 structure hybrid vehicle type opens and stops control system, the engine of P0 structure hybrid vehicle type include driving motor (1), its characterized in that: the driving motor (1) is a 48V motor; the main shaft of the driving motor (1) is connected to a crankshaft of a fuel system engine (9) through a belt transmission mechanism to provide power for the fuel engine.
2. A P0-configuration hybrid start-stop control system, according to claim 1, wherein: in the braking state of the vehicle, the driving motor (1) is used as a generator to convert the braking energy of the vehicle into electric energy.
3. A P0-configuration hybrid start-stop control system according to claim 2, wherein: the start-stop control system is provided with a 48V lithium battery (3) for providing electric energy for the driving motor (1), and the electric energy generated by the driving motor (1) is recovered and stored in a vehicle braking state.
4. A P0-configuration hybrid start-stop control system, according to claim 1, wherein: the start-stop control system is provided with a low-voltage DC/DC inverter (2); the low-voltage DC/DC inverter (2) provides voltage conversion of 48V and 12V between a 48V electric network and a 12V electric network on a vehicle.
5. A P0-configuration hybrid start-stop control system, according to claim 3, wherein: the start-stop control system is provided with a BMS system (4), and the BMS system (4) is a control system of a 48V lithium battery (3); and the BMS system (4) receives and responds to command signals for starting and stopping the whole vehicle.
6. A P0-configuration hybrid start-stop control system, according to claim 1, wherein: the start-stop control system is provided with an EMS system (5), and the EMS system (5) is a controller of an engine; the EMS system (5) sends out a demand signal for starting and stopping the vehicle and realizes the starting and stopping of the engine according to the requirement of the whole vehicle.
7. A P0-configuration hybrid start-stop control system, according to claim 1, wherein: the start-stop control system is provided with a starter (7) and a starter relay (6); the start-stop control system starts a fuel system engine (9) through a starter (7); the starter relay (6) is used for controlling the on-off of a circuit of the starter (7).
8. A P0-configuration hybrid start-stop control system, according to claim 7, wherein: the start-stop control system is provided with a 12V storage battery (8); the 12V storage battery (8) provides electric energy for the 12V starter (7).
9. The control method of a P0-structured hybrid start-stop control system according to any one of claims 1 to 8, wherein:
in the driving process, when a red light is on at a road intersection and the vehicle starting and stopping function conditions are met, a driver steps on a brake pedal, a BMS (battery management system) system (4) controls a driving motor (1) with a P0 structure to ignite, and an engine (9) of a fuel system is flamed out and braked;
when the green light is on, and a driver steps on an accelerator pedal or releases a brake pedal, the BMS system (4) sends a signal to the BMS system (4) to control the 48V lithium battery (3) to work and release electric energy; through a low-voltage DC/DC inverter (2)) to a drive motor (1); the driving motor (1) drives the fuel system engine (9) to rotate, and the fuel system engine (9) is started;
in a special severe low-temperature area, when the starting resistance moment of an engine (9) of the fuel system is larger, a signal is sent to a starter relay (6) through an EMS system (5), the relay is closed, a starter (7) works, and the engine (9) of the fuel system is started;
when the vehicle brakes, the rotation generated by the crankshaft of the fuel system engine (9) is transmitted to the driving motor (1); the driving motor (1) generates electric energy, and the electric energy is recovered and stored by a 48V lithium battery (3).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111527520.4A CN113997924A (en) | 2021-12-14 | 2021-12-14 | P0 structure hybrid vehicle type start-stop control system and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111527520.4A CN113997924A (en) | 2021-12-14 | 2021-12-14 | P0 structure hybrid vehicle type start-stop control system and control method thereof |
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| EP3754175A1 (en) * | 2019-06-17 | 2020-12-23 | Hyundai Motor Company | Engine start control method in a vehicle provided with a starter, a mild-hybrid starter-generator and a 48v-battery |
| CN112622867A (en) * | 2020-12-25 | 2021-04-09 | 奇瑞汽车股份有限公司 | Quick start system and method for hybrid electric vehicle |
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2021
- 2021-12-14 CN CN202111527520.4A patent/CN113997924A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105253137A (en) * | 2015-11-10 | 2016-01-20 | 安徽江淮汽车股份有限公司 | Control method and control system for motor vehicle hybrid power source |
| CN109774699A (en) * | 2018-12-20 | 2019-05-21 | 奇瑞汽车股份有限公司 | A kind of hybrid electric vehicle control method and system based on CAN communication |
| CN111762159A (en) * | 2019-03-14 | 2020-10-13 | 中国第一汽车股份有限公司 | Start-stop coordination control method for 48V micro-mixing system double-clutch transmission |
| EP3754175A1 (en) * | 2019-06-17 | 2020-12-23 | Hyundai Motor Company | Engine start control method in a vehicle provided with a starter, a mild-hybrid starter-generator and a 48v-battery |
| CN211808946U (en) * | 2019-12-10 | 2020-10-30 | 银隆新能源股份有限公司 | Auxiliary supercharging automobile air conditioning system |
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