CN104442824A - Parallel type energy recovery control method and system - Google Patents
Parallel type energy recovery control method and system Download PDFInfo
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- CN104442824A CN104442824A CN201410662771.7A CN201410662771A CN104442824A CN 104442824 A CN104442824 A CN 104442824A CN 201410662771 A CN201410662771 A CN 201410662771A CN 104442824 A CN104442824 A CN 104442824A
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- 238000004458 analytical method Methods 0.000 claims description 54
- 230000001172 regenerating effect Effects 0.000 claims description 20
- 238000004364 calculation method Methods 0.000 claims description 13
- 239000000446 fuel Substances 0.000 claims description 12
- 238000004064 recycling Methods 0.000 claims description 12
- 238000004088 simulation Methods 0.000 claims description 9
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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
- B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
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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
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/06—Combustion engines, Gas turbines
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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
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/06—Combustion engines, Gas turbines
- B60W2510/0638—Engine speed
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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
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/06—Combustion engines, Gas turbines
- B60W2510/0657—Engine torque
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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
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/08—Electric propulsion units
- B60W2510/083—Torque
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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
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/08—Electric propulsion units
- B60W2510/085—Power
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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
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/10—Change speed gearings
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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
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/24—Energy storage means
- B60W2510/242—Energy storage means for electrical energy
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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
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/24—Energy storage means
- B60W2510/242—Energy storage means for electrical energy
- B60W2510/244—Charge state
-
- 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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/10—Change speed gearings
-
- 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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/18—Braking system
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- Hybrid Electric Vehicles (AREA)
Abstract
The invention belongs to the technical field of electric vehicle energy recovery, and particularly relates to a parallel type energy recovery control method. The method includes the following steps that (A), the working condition request speed and the acceleration are calculated; (B), whether the acceleration is zero or not is judged, and if yes, whether pure electric drive, or engine drive or hybrid drive is adopted in a vehicle is judged according to request power and the electric quantity of a battery; otherwise, the step (C) and the step (D) are executed; (C), whether the vehicle needs to shift gear or not is judged; (D), if the acceleration is smaller than zero at the moment, the brake energy recovery flow path is executed. Meanwhile, the invention relates to a parallel type energy recovery system. By providing the method for effectively changing energy recovery and the method for energy control, all the conditions in the energy recovery process of the whole vehicle are effectively controlled in a balanced mode, and therefore the requirements for dynamic property and economy of the whole vehicle are met.
Description
Technical field
The invention belongs to electric vehicle energy recovery technology field, particularly a kind of parallel type energy recycling and control method and system.
Background technology
Relate to parallel-type vehicle electrical storage energy regeneration brake system and energy regenerating Application way disclosed in existing patent, mainly comprise motor, super capacitor group and storage battery, harmonic drive structure, torque synthesizer, electronic control unit, harmonic drive structure controller, electric machine controller and super capacitor controller.The vehicle of this energy regenerating Application way has two cover brake system: the brake system of existing vehicle and parallel electrical storage energy regeneration brake system, and two cover brake system are run individually or simultaneously on vehicle.Its main function carrys out recuperated energy by parallel electrical storage energy regeneration brake system according to the speed of a motor vehicle, the braking degree of depth, storage battery energy value when car brakeing; Also can by driving engine and motor simultaneously or drive vehicle separately.The mechanical energy dissipated in car brakeing process is converted to electric energy by it, and recycling, can save fuel oil, reduces discharge, reduces brake oil, and improves braking safety and improve brake system service life.But this kind of parallel-type vehicle electrical storage energy only carries out energy regenerating and utilization to during regeneration brake system pattern, ineffective in pure electric drive, pure engine drive and combination drive, the energy recuperation mode of this Three models control effectively.
Summary of the invention
Primary and foremost purpose of the present invention is to provide a kind of parallel type energy recycling and control method, carries out actv. control to the energy regenerating of Three models.
For realizing above object, the technical solution used in the present invention is: a kind of parallel type energy recycling and control method, comprises the steps: (A) design condition request speed, acceleration/accel; (B) judge whether acceleration/accel equals zero, if equal zero, then judge that vehicle adopts pure electric drive or engine drive or combination drive according to request power and battery electric quantity; Otherwise enter step C, D; (C) judge that vehicle is the need of gearshift; (D) if this brief acceleration is less than zero, Brake energy recovery flow process is carried out.
Compared with prior art, there is following technique effect in the present invention: by providing the method for effectively change energy regenerating and providing energy control method, effectively carry out balance to the various situations in car load energy recovery process to control, thus meet the requirement of car load dynamic property and economy.
Another object of the present invention is to provide a kind of parallel type energy recovery system, carries out actv. control to the energy regenerating of Three models.
For realizing above object, the technical solution used in the present invention is: a kind of parallel type energy recovery system, comprises battery analysis module, machine analysis module, engine analysis module, regenerative brake analysis module, braking force distribution module, dynamic Property Analysis module, performance analysis module and dynamical parameter matching module; Described battery analysis module goes out operating mode artificial battery terminal voltage, inner resistance, charging and discharging currents, charge-discharge electric power characteristic curve and operating mode hundred kilometers of energy inputs according to cell pressure, capacity of cell, energy, power, discharge rate, charge rate, the initial SOC of battery, electricity meter calculation and Analysis; Machine analysis module is according to rating horsepower, rated speed of rotation, torque rating, maximum speed of revolution, work efficiency atlas analysis determination simulation process motor speed characteristic, torque characteristics, charge-discharge electric power characteristic; Engine analysis module determines engine speed characteristic in simulation process, torque characteristics, characteristics of output power, hundred kilometers of operating mode fuel consumption according to rating horsepower, rated speed of rotation, torque rating, maximum speed of revolution, the analysis of fuel oil consumption universal characteristic; The parameter of electric machine that the battery parameter that regenerative brake analysis module exports according to battery analysis module, machine analysis module export, transmitting ratio analytical calculation operating mode simulation process batteries charging energy and organic efficiency; Braking force distribution module goes out ideal braking force distribution curve according to the calculation of parameter affecting braking force and tries hard to by the fixed braking than distributing; Dynamic Property Analysis module is for obtaining tractive force-speed of a motor vehicle relation, dynamic factor-speed of a motor vehicle relation, max. climb slope-speed of a motor vehicle relation, pick-up time-speed of a motor vehicle relation; Performance analysis module is for obtaining constant speed fuel consumption of 100km-speed of a motor vehicle relation and operating mode emulation regenerative brake recuperated energy-time relationship; Dynamical parameter matching module calculates economy and the dynamic property of the lower automobile of different parameters coupling according to above-mentioned parameter concrete analysis, wherein represents economy with state of cyclic operation fuel oil consumption, represents dynamic property with Standing start pick-up time.
Compared with prior art, there is following technique effect in the present invention: by providing the device of effectively change energy regenerating and providing energy control apparatus, effectively carry out balance to the various situations in car load energy recovery process to control, thus meet the requirement of car load dynamic property and economy.
Accompanying drawing explanation
Fig. 1 is functional block diagram of the present invention;
Fig. 2 is braking energy control flow chart of the present invention;
Fig. 3 is Three models energy hole diagram of circuit of the present invention;
Fig. 4 is the schematic diagram of the two-dimensional coordinate system in step C22.
Detailed description of the invention
Below in conjunction with Fig. 1 to Fig. 4, the present invention is described in further detail.
Consult Fig. 2, Fig. 3, a kind of parallel type energy recycling and control method, comprise the steps: (A) design condition request speed, acceleration/accel; (B) judge whether acceleration/accel equals zero, if equal zero, then judge that vehicle adopts pure electric drive or engine drive or combination drive according to request power and battery electric quantity; Otherwise enter step C, D; (C) judge that vehicle is the need of gearshift; (D) if this brief acceleration is less than zero, Brake energy recovery flow process is carried out.Here, gathered by acceleration/accel, parameter such as request power, battery electric quantity etc., ensure that vehicle is in suitable drive pattern, and judge that vehicle is the need of gearshift according to car speed, gear information, in addition, complete the control of Brake energy recovery simultaneously.By all function i ntegration together, be conducive to the management and utilization of energy, effectively balance carried out to the various situation of car load and control, thus meet the requirement of car load dynamic property and economy.
Preferably, in described step B, realize as follows judging that vehicle adopts pure electric drive or engine drive or combination drive function according to request power and battery electric quantity: (B1) judges whether request power is greater than and set pure electric drive power, if, enter step B2, otherwise enter step B3; (B2) judge whether battery electric quantity is greater than setting value, if so, then vehicle adopts pure electric drive, calculates the discharge power of battery, discharge current, battery electric quantity simultaneously; (B3) whether decision request power in the power district of engine settings, and if so, then vehicle adopts engine drive, and the rotating speed of calculation engine, torque, fuel consumption rate, otherwise enter step B4; (B4) judge whether battery electric quantity is greater than settings, if, then vehicle adopts combination drive, and by system optimal efficiency distribution of torque under current rotating speed, calculate the output speed of the discharge current of the Driving Torque of motor, power and battery, discharge power, electricity and driving engine, Driving Torque and fuel consumption rate simultaneously; Otherwise, enter step B5; (B5) judge that propulsion source can not meet duty requirements, driving engine exports by maximum output torque under current rotating speed, exports speed and the acceleration/accel of current state.According to this step, can make vehicle operation under the state of the best, reduce oil consumption.
Preferably, in described step C, judge that vehicle is the need of gearshift as follows: (C1) obtains transmission system request torque, request rotating speed; (C2) calculating of carrying out shifting gears judges; (C3) be confirmed whether gearshift, if gearshift, then calculate the rotating speed of the rear propulsion source of gearshift, torque; Also comprise the steps: after described step C3 that (C4) distributes rotating speed by system optimal efficiency under current rotating speed; (C5) torque of output motor and the Driving Torque of driving engine; (C6) output speed of the discharge current of the Driving Torque of motor, power and battery, discharge power, electricity and driving engine, Driving Torque and fuel consumption rate is calculated.。Operational factor current according to vehicle again, judges that vehicle is the need of gearshift, to realize the self shifter work of vehicle.
Preferably, in described step D, Brake energy recovery flow process comprises the steps: that (D1) judges whether rate of braking is less than 0.7, if so, enters step D2, otherwise enters step D3; (D2) adopt front and back wheel fixed than brakig force distribution curve assignment system power, and calculate the energy regenerating situation of drive wheel, export the regenerating braking energy percent recovery; (D3) adopt friction braking, output engine, motor, battery status variable are zero.By these steps, the recovery to vehicle braking energy can be realized.
As preferred version of the present invention, can judge as follows for whether carrying out gearshift, in described step C2, comprise the steps: that (C21) take engine speed as abscissa, maximum engine torque draws two-dimensional coordinate system for ordinate, and draw engine test bench characteristic curve in a coordinate system; (C22) go out by following formulae discovery critical speed point spd_up1, spd_up2 that critical speed point spd_dn1, spd_dn2 when downshift engine load is respectively 0 and 1 and upshift engine load are respectively 0 and 1, and in two-dimensional coordinate system, mark this four points, as shown in Figure 4;
spd_dn1＝0.325*spd_max_En；
spd_up1＝0.625*spd_max_En；
spd_dn2＝spd_max_trq_En(spd_max_trq_En＞spd_max_En)
Or 0.45*spd_max_En;
Spd_up2＝spd_max_pwr_En；
In formula, spd_max_En is maximum engine speed; Spd_max_trq_En is rotating speed corresponding to engine test bench characteristic maximum torque place; Spd_max_pwr_En is rotating speed corresponding to engine test bench characteristic maximum power place; (C23) when the rotary speed-torque operating point of driving engine is on the left of the straight line determined with spd_dn1 and spd_dn2, downshift operation is carried out; When operating point is on the right side of the straight line determined with spd_up1 and spd_up2, carry out upshift operation.Judge that the whether gearshift result drawn is comparatively accurate by this step, be conducive to the automatic replacing of gear.
Preferably, consult Fig. 1, also disclose a kind of parallel type energy recovery system in the present embodiment, comprise battery analysis module, machine analysis module, engine analysis module, regenerative brake analysis module, braking force distribution module, dynamic Property Analysis module, performance analysis module and dynamical parameter matching module; Described battery analysis module goes out operating mode artificial battery terminal voltage, inner resistance, charging and discharging currents, charge-discharge electric power characteristic curve and operating mode hundred kilometers of energy inputs according to cell pressure, capacity of cell, energy, power, discharge rate, charge rate, the initial SOC of battery, electricity meter calculation and Analysis; Machine analysis module is according to rating horsepower, rated speed of rotation, torque rating, maximum speed of revolution, work efficiency atlas analysis determination simulation process motor speed characteristic, torque characteristics, charge-discharge electric power characteristic; Engine analysis module determines engine speed characteristic in simulation process, torque characteristics, characteristics of output power, hundred kilometers of operating mode fuel consumption according to rating horsepower, rated speed of rotation, torque rating, maximum speed of revolution, the analysis of fuel oil consumption universal characteristic; The parameter of electric machine that the battery parameter that regenerative brake analysis module exports according to battery analysis module, machine analysis module export, transmitting ratio analytical calculation operating mode simulation process batteries charging energy and organic efficiency; Braking force distribution module goes out ideal braking force distribution curve according to the calculation of parameter affecting braking force and tries hard to by the fixed braking than distributing; Dynamic Property Analysis module is for obtaining tractive force-speed of a motor vehicle relation, dynamic factor-speed of a motor vehicle relation, max. climb slope-speed of a motor vehicle relation, pick-up time-speed of a motor vehicle relation; Performance analysis module is for obtaining constant speed fuel consumption of 100km-speed of a motor vehicle relation and operating mode emulation regenerative brake recuperated energy-time relationship; Dynamical parameter matching module calculates economy and the dynamic property of the lower automobile of different parameters coupling according to above-mentioned parameter concrete analysis, wherein represents economy with state of cyclic operation fuel oil consumption, represents dynamic property with Standing start pick-up time.By this parallel type energy recovery system, realize foregoing each step, management is carried out to the various energy of vehicle and controls, meet the requirement of car load dynamic property and economy.
Preferably, also comprising report output module, for providing images outputting, realizing preserving the chart in result of calculation, parameter values exports and realize the preservation to calculating gained Output rusults parameter and user's initial setting up parameter.The existence of report output module, is not only conducive to the monitoring to each parameter of vehicle, can also work as vehicle when breaking down, be conducive to the particular location of detection failure, and data can be provided for improvement for vehicle testing.
Claims (8)
1. a parallel type energy recycling and control method, comprises the steps:
(A) design condition request speed, acceleration/accel;
(B) judge whether acceleration/accel equals zero, if equal zero, then judge that vehicle adopts pure electric drive or engine drive or combination drive according to request power and battery electric quantity; Otherwise enter step C, D;
(C) judge that vehicle is the need of gearshift;
(D) if this brief acceleration is less than zero, Brake energy recovery flow process is carried out.
2. parallel type energy recycling and control method as claimed in claim 1, is characterized in that: in described step B, realizes as follows judging that vehicle adopts pure electric drive or engine drive or combination drive function according to request power and battery electric quantity:
(B1) judge whether request power is greater than the pure electric drive power of setting, if so, enters step B2, otherwise enters step B3;
(B2) judge whether battery electric quantity is greater than setting value, if so, then vehicle adopts pure electric drive, calculates the discharge power of battery, discharge current, battery electric quantity simultaneously;
(B3) whether decision request power in the power district of engine settings, and if so, then vehicle adopts engine drive, and the rotating speed of calculation engine, torque, fuel consumption rate, otherwise enter step B4;
(B4) judge whether battery electric quantity is greater than settings, if, then vehicle adopts combination drive, and by system optimal efficiency distribution of torque under current rotating speed, calculate the output speed of the discharge current of the Driving Torque of motor, power and battery, discharge power, electricity and driving engine, Driving Torque and fuel consumption rate simultaneously; Otherwise, enter step B5;
(B5) judge that propulsion source can not meet duty requirements, driving engine exports by maximum output torque under current rotating speed, exports speed and the acceleration/accel of current state.
3. parallel type energy recycling and control method as claimed in claim 1, is characterized in that: in described step C, judges that vehicle is the need of gearshift as follows:
(C1) transmission system request torque, request rotating speed is obtained;
(C2) calculating of carrying out shifting gears judges;
(C3) be confirmed whether gearshift, if gearshift, then calculate the rotating speed of the rear propulsion source of gearshift, torque.
4. parallel type energy recycling and control method as claimed in claim 3, is characterized in that: also comprise the steps: after described step C3
(C4) rotating speed is distributed by system optimal efficiency under current rotating speed;
(C5) torque of output motor and the Driving Torque of driving engine;
(C6) output speed of the discharge current of the Driving Torque of motor, power and battery, discharge power, electricity and driving engine, Driving Torque and fuel consumption rate is calculated.
5. parallel type energy recycling and control method as claimed in claim 1, it is characterized in that: in described step D, Brake energy recovery flow process comprises the steps:
(D1) judge whether rate of braking is less than 0.7, if so, enters step D2, otherwise enter step D3;
(D2) adopt front and back wheel fixed than brakig force distribution curve assignment system power, and calculate the energy regenerating situation of drive wheel, export the regenerating braking energy percent recovery;
(D3) adopt friction braking, output engine, motor, battery status variable are zero.
6. parallel type energy recycling and control method as claimed in claim 3, is characterized in that: in described step C2, comprise the steps:
(C21) take engine speed as abscissa, maximum engine torque draws two-dimensional coordinate system for ordinate, and draw engine test bench characteristic curve in a coordinate system;
(C22) go out by following formulae discovery critical speed point spd_up1, spd_up2 that critical speed point spd_dn1, spd_dn2 when downshift engine load is respectively 0 and 1 and upshift engine load are respectively 0 and 1, and in two-dimensional coordinate system, mark this four points;
spd_dn1＝0.325*spd_max_En；
spd_up1＝0.625*spd_max_En；
spd_dn2＝spd_max_trq_En(spd_max_trq_En＞spd_max_En)
Or 0.45*spd_max_En;
Spd_up2＝spd_max_pwr_En；
In formula, spd_max_En is maximum engine speed; Spd_max_trq_En is rotating speed corresponding to engine test bench characteristic maximum torque place; Spd_max_pwr_En is rotating speed corresponding to engine test bench characteristic maximum power place;
(C23) when the rotary speed-torque operating point of driving engine is on the left of the straight line determined with spd_dn1 and spd_dn2, downshift operation is carried out; When operating point is on the right side of the straight line determined with spd_up1 and spd_up2, carry out upshift operation.
7. a parallel type energy recovery system, is characterized in that: comprise battery analysis module, machine analysis module, engine analysis module, regenerative brake analysis module, braking force distribution module, dynamic Property Analysis module, performance analysis module and dynamical parameter matching module; Described battery analysis module goes out operating mode artificial battery terminal voltage, inner resistance, charging and discharging currents, charge-discharge electric power characteristic curve and operating mode hundred kilometers of energy inputs according to cell pressure, capacity of cell, energy, power, discharge rate, charge rate, the initial SOC of battery, electricity meter calculation and Analysis; Machine analysis module is according to rating horsepower, rated speed of rotation, torque rating, maximum speed of revolution, work efficiency atlas analysis determination simulation process motor speed characteristic, torque characteristics, charge-discharge electric power characteristic; Engine analysis module determines engine speed characteristic in simulation process, torque characteristics, characteristics of output power, hundred kilometers of operating mode fuel consumption according to rating horsepower, rated speed of rotation, torque rating, maximum speed of revolution, the analysis of fuel oil consumption universal characteristic; The parameter of electric machine that the battery parameter that regenerative brake analysis module exports according to battery analysis module, machine analysis module export, transmitting ratio analytical calculation operating mode simulation process batteries charging energy and organic efficiency; Braking force distribution module goes out ideal braking force distribution curve according to the calculation of parameter affecting braking force and tries hard to by the fixed braking than distributing; Dynamic Property Analysis module is for obtaining tractive force-speed of a motor vehicle relation, dynamic factor-speed of a motor vehicle relation, max. climb slope-speed of a motor vehicle relation, pick-up time-speed of a motor vehicle relation; Performance analysis module is for obtaining constant speed fuel consumption of 100km-speed of a motor vehicle relation and operating mode emulation regenerative brake recuperated energy-time relationship; Dynamical parameter matching module calculates economy and the dynamic property of the lower automobile of different parameters coupling according to above-mentioned parameter concrete analysis, wherein represents economy with state of cyclic operation fuel oil consumption, represents dynamic property with Standing start pick-up time.
8. parallel type energy recovery system as claimed in claim 7, it is characterized in that: also comprise report output module, for providing images outputting, realizing preserving the chart in result of calculation, parameter values exports and realize the preservation to calculating gained Output rusults parameter and user's initial setting up parameter.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106347348A (en) * | 2015-07-13 | 2017-01-25 | 现代自动车株式会社 | Vehicle control method for energy recovery |
| CN107972494A (en) * | 2017-12-05 | 2018-05-01 | 东风柳州汽车有限公司 | Electric vehicle energy recycling and control method |
| WO2018119914A1 (en) * | 2016-12-29 | 2018-07-05 | 深圳配天智能技术研究院有限公司 | Brake energy feedback method and feedback system for electric vehicle, and vehicle |
| WO2020029462A1 (en) * | 2018-08-09 | 2020-02-13 | 金龙联合汽车工业（苏州）有限公司 | Self-driving system for electric vehicle |
| CN111857102A (en) * | 2020-07-31 | 2020-10-30 | 深圳市元征科技股份有限公司 | Vehicle power type identification method and related equipment thereof |
| CN113799614A (en) * | 2021-09-13 | 2021-12-17 | 的卢技术有限公司 | Braking energy recovery control method and system for four-wheel independent drive electric vehicle |
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