CN205440339U - Best economic nature gear shift control system of hybrid passenger train AMT - Google Patents
Best economic nature gear shift control system of hybrid passenger train AMT Download PDFInfo
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Abstract
The utility model discloses a best economic nature gear shift control system of hybrid passenger train AMT, hybrid passenger train include engine, motor, gearbox ATM and vehicle control unit, by automatic clutch between engine and the motor, gearbox AMT input shaft designs into a whole with the motor output shaft, and vehicle control unit HCU is respectively through CAN bus connection engine control unit ECU, motor control unit MCU and gearbox the control unit TCU, vehicle control unit HCU carries out coordinated control to the throttle aperture of engine, torque, automatic clutch disconnection -connection states and the gear shift to perform an action of motor. The utility model discloses combine to insert electric formula hybrid passenger train self characteristics, different economic nature gear shift laws according to the various mode that insert electric formula hybrid passenger train, is formulated to the research and the calculation of advancing helping nature of menstruation gear shift law, is satisfying under the prerequisite of dynamic property, further improves the comprehensive fuel economy who inserts electric formula hybrid car.
Description
Technical field
This utility model relates to hybrid power passenger car, particularly to a kind of hybrid power passenger car AMT Best Economy shift control.
Background technology
Energy problem receives much concern in recent years, and for improving the fuel economy of automobile, the research of economy shift schedule is particularly important.Owing to complete vehicle structure, mode of operation and the control system of plug-in hybrid passenger car all have the biggest difference with traditional vehicle, therefore can not directly use the shift schedule of traditional vehicle.
The energy source of plug-in hybrid passenger car is different from traditional vehicle, except fuel oil consumption, it is also possible to be that cell power generation supplies automobile energy.Energy output according to the demand of car load operating condition, electromotor and motor is continually changing, the research work of remote-effects to shift schedule.The Best Economy shift schedule of hybrid vehicle has the feature of oneself, needs to combine himself feature and is correspondingly improved and innovates.
The shift schedule of variator be between automobile each gear the fluid drive moment with control Parameters variation rule.The quality of shift schedule directly affects the economy of automobile.The appropriate design of shift schedule, it is possible to avoid the driver's improper selection to the gear shift moment, compare hand shift car and can significantly improve car load power performance.
One-parameter shift schedule many selections speed is as controlling parameter, and Control system architecture is simple, but does not accounts for the change of accelerator open degree, it is impossible to realizes driver and intervenes gear shift；Two parameter shift schedule many selections speed and accelerator open degree jointly control, and compared with single parameter method, two parameter method is obtained in that more preferable dynamic property, applies wide；Three parameter shift schedules more meet vehicle actual operating mode.But in its formulation process, need the test data that substantial amounts of electromotor unstable state works.In hybrid electric vehicle, it is also contemplated that the impact of power drive system, considerably increase the complexity of shift strategy, it is difficult to apply in actual vehicle.
Utility model content
This utility model purpose is: owing to adding the power system such as motor, battery in plug-in hybrid passenger car work process, its mode of operation differs widely with orthodox car, energy source is also not limited to electromotor, causes its economy shift schedule to have the advantages that to be different from traditional vehicle.For solving this problem, the utility model proposes a kind of hybrid power passenger car AMT Best Economy shift control.
The technical solution of the utility model is:
A kind of hybrid power passenger car AMT Best Economy shift control, it is applicable to plug-in parallel type hybrid vehicle, described plug-in parallel type hybrid vehicle includes electromotor, motor, change speed gear box ATM and entire car controller, it is connected by automatic clutch between described electromotor and motor, change speed gear box AMT power shaft and motor output shaft are designed to an entirety by described gear change system, and entire car controller HCU connects control unit of engine ECU, motor control unit MCU and gear box control unit TCU by CAN respectively；Driver expresses control by pedal and stick to entire car controller and is intended to, entire car controller HCU accelerator open degree, the torque of motor, automatic clutch deciliter state and the gear shift execution action of electromotor are coordinated control.
A kind of hybrid power passenger car AMT Best Economy gear-shifting control method, change n shelves with Standing start continuously and accelerate to the comprehensive fuel consumption of a certain regulation speed for controlling target, with running car speed and accelerator open degree for controlling parameter, formulate Best Economy shift schedule.
The method formulating Best Economy shift schedule concretely comprises the following steps:
S1, engine oil consumption: according to universal characteristic curve of engine, there is certain functional relationship with its rotating speed and torque in engine fuel consumption quantity, asks for amount of fuel corresponding to different rotating speed, torque, and be converted into standard coal consumption according to national standard；
S2, the energy expenditure of motor: according to electrical consumption or the power of battery of generation, calculate the electric energy that the power system such as battery, motor is consumed, and calculates general rule according to comprehensive energy consumption and power consumption equivalence is converted into standard coal consumption；
S3, ask for shift points: when accelerator open degree immobilizes, this requirement minimum of comprehensive fuel consumption during speed is required to a certain according to the continuous Shift into accelerating of Standing start, utilize MATLAB software programming derived function, obtain the shift points under this accelerator open degree, gear shift speed u tried to achieveaShould meet condition:
In formula:The minimum speed of n+1 shelves；The max. speed of n shelves；
S4, ask for n shelves and rise n+1 gear shift curve: repeat step 3, program and obtain the gear shift speed that each accelerator open degree is corresponding；Gained shift points is fitted to one about accelerator open degree α and speed uaCurve, be n shelves and be raised to the power gears-shifting rule of n+1 shelves；Downshift rule then utilization etc. postpones shift schedule, formulates on the basis of upshift rule；
S5, formulate shift schedule: repeat step 3,4, obtain and draw out the shift curve of each shelves, i.e. complete the formulation of shift schedule under this pattern；
S6, formulate different mode shift schedule: repeat above-mentioned in steps, respectively electromotor is operated alone, pure electronic, motor power-assisted and electromotor drive the work economy shift schedule of this several modes of electric power generation to formulate.
The utility model has the advantages that:
Hybrid power passenger car AMT Best Economy shift control provided by the utility model, in conjunction with plug-in hybrid passenger car own characteristic, carry out research and the calculating of economy shift schedule, compared with existing traditional vehicle shift schedule, this utility model, according to the various mode of operations of plug-in hybrid passenger car, formulates different economy shift schedules.On the premise of meeting dynamic property, further improving the composite fuel economy of plug-in hybrid electric vehicle, range of application has more specific aim.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings and this utility model is further described by embodiment:
Fig. 1 is the plug-in parallel type hybrid vehicle Full Vehicle System figure that this utility model is suitable for；
Fig. 2 is AMT basic controlling figure in hybrid power system described in the utility model；
Fig. 3 is hybrid power passenger car AMT Best Economy gear change system development process figure of the present utility model.
Detailed description of the invention
As illustrated in fig. 1 and 2, hybrid power passenger car AMT Best Economy gear change system disclosed in this utility model, it is applicable to plug-in parallel type hybrid vehicle, described plug-in parallel type hybrid vehicle includes electromotor, motor, change speed gear box ATM and entire car controller, it is connected by automatic clutch between described electromotor and motor, change speed gear box AMT power shaft and motor output shaft are designed to an entirety by described gear change system, both improve reliability, alleviate complete vehicle weight, reduce again cost, be also the typical feature of this system.Entire car controller HCU connects control unit of engine ECU, motor control unit MCU and gear box control unit TCU by CAN respectively；Driver expresses control by pedal and stick to entire car controller and is intended to, by entire car controller HCU, accelerator open degree, the torque of motor, automatic clutch deciliter state and the gear shift execution action of electromotor are coordinated control, and realize AMT system is automatically controlled eventually through electronic control system, on the premise of obtaining the ability of excellent driving performance, gentle start performance and gear shift rapidly, further improving the composite fuel economy of plug-in hybrid electric vehicle, range of application has more specific aim.
The design principle of economy shift schedule is to make vehicle fuel consumption minimize on the premise of meeting power performance.This utility model changes n shelves continuously and accelerates to the comprehensive fuel consumption of a certain regulation speed with Standing start is to control target, with running car speed and accelerator open degree for controlling parameter, formulates Best Economy shift schedule, formulates flow process as shown in Figure 3.
This utility model is combined as a example by driving with motor power-assisted mode of operation, i.e. electromotor with motor, specifically introduces the calculating embodiment of Best Economy shift schedule:
1. hour oil consumption of electromotor
Bench test data according to electromotor, utilize method of least square that its hour fuel consumption be expressed as the quadratic function relation formula about engine speed:
Owing to running car speed and engine speed exist certain conversion relation, then hour fuel consumption of electromotor is also referred to as about the conic section of speed, and precision can meet calculating requirement.Calculate general rule according to comprehensive energy consumption, choose 1kg diesel oil and be converted into the coefficient of standard coal, then utilize this coefficient that oil consumption is converted to standard coal consumption.
2. the energy expenditure of motor
For plug-in hybrid electric vehicle, the energy content of battery derives from external electrical network.Motor is the output of battery as the load in battery model, its input power.According to the circuit relationships shown in Fig. 3, it is calculated the power consumption of battery, is then standard coal consumption by power consumption equivalency transform.
3. comprehensive energy consumption
Under motor assistant mode, system total energy consumption includes the fuel consumption of electromotor and the power consumption of battery, the equivalence margin coal consumption summation of oil consumption and power consumption will be the comprehensive energy consumption of system.
4. the asking for of economy shift schedule
When accelerator open degree immobilizes, the comprehensive energy consumption amount minimum of plug-in hybrid electric vehicle is its economy shift points, say, that the speed that the minimizing point of comprehensive oil consumption is corresponding is gear shift speed, i.e.
Adjacent two grades are analyzed, can obtain after derivation
Qh(n)δn(Ft(n+1)-Fψ+w)=Qh(n+1)δn+1(Ft(n)-Fψ+w)
Relational expression being represented as with speed every in above formula being brought in above formula, final acquisition is about the unary biquadratic equation of speed.Utilize software MATLAB program calculation to ask for meeting the result in this gear bands speed, be the upshift speed of adjacent two grades of optimal fuel economies under this accelerator open degree.Downshift rule then postpones rule and formulates upshifing on the basis of rule according to waiting.
5. repeat the above steps, tries to achieve the shift points of each shelves under different accelerator open degree.
Above-described embodiment only for technology of the present utility model design and feature are described, its object is to allow person skilled in the art will appreciate that content of the present utility model and to implement according to this, can not limit protection domain of the present utility model with this.All modifications done according to the spirit of this utility model main technical schemes, all should contain within protection domain of the present utility model.
Claims (1)
1. a hybrid power passenger car AMT Best Economy shift control, it is applicable to plug-in parallel type hybrid vehicle, described plug-in parallel type hybrid vehicle includes electromotor, motor, change speed gear box ATM and entire car controller, it is connected by automatic clutch between described electromotor and motor, it is characterized in that: change speed gear box AMT power shaft and motor output shaft are designed to an entirety by described gear change system, entire car controller HCU connects control unit of engine ECU, motor control unit MCU and gear box control unit TCU by CAN respectively；Driver expresses control by pedal and stick to entire car controller and is intended to, entire car controller HCU accelerator open degree, the torque of motor, automatic clutch deciliter state and the gear shift execution action of electromotor are coordinated control.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105539425A (en) * | 2015-12-31 | 2016-05-04 | 清华大学苏州汽车研究院（吴江） | Hybrid power bus AMT optimal economy gear shifting control system and control method |
| CN107314105A (en) * | 2017-07-20 | 2017-11-03 | 北京汽车研究总院有限公司 | A kind of shelves bit slice system, automobile and gear method for limiting |
| CN110966107A (en) * | 2019-12-20 | 2020-04-07 | 无锡明恒混合动力技术有限公司 | Method for establishing hybrid diesel engine rapid prototype control system |
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2015
- 2015-12-31 CN CN201521133368.1U patent/CN205440339U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105539425A (en) * | 2015-12-31 | 2016-05-04 | 清华大学苏州汽车研究院（吴江） | Hybrid power bus AMT optimal economy gear shifting control system and control method |
| CN107314105A (en) * | 2017-07-20 | 2017-11-03 | 北京汽车研究总院有限公司 | A kind of shelves bit slice system, automobile and gear method for limiting |
| CN110966107A (en) * | 2019-12-20 | 2020-04-07 | 无锡明恒混合动力技术有限公司 | Method for establishing hybrid diesel engine rapid prototype control system |
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