CN102963354A - Torque processing method of hybrid vehicle - Google Patents
Torque processing method of hybrid vehicle Download PDFInfo
- Publication number
- CN102963354A CN102963354A CN2012104884040A CN201210488404A CN102963354A CN 102963354 A CN102963354 A CN 102963354A CN 2012104884040 A CN2012104884040 A CN 2012104884040A CN 201210488404 A CN201210488404 A CN 201210488404A CN 102963354 A CN102963354 A CN 102963354A
- Authority
- CN
- China
- Prior art keywords
- torque
- engine
- motor
- current
- driving engine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Hybrid Electric Vehicles (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention relates to a torque processing method of a hybrid vehicle. The torque processing method comprises the following steps: a whole controller receives signals of the amplitude of an accelerator pedal, the current rotary speed of an engine, the current gear of the vehicle and the current electric quantitycharge state of a battery by a CAN (Controller Area Network) network, and calculates and obtains a torque value needed by a power system according to the current vehicle state; the allowable maximum engine torque allowable under the current rotary speed of the engine is determined; the allowable maximum engine power generating torque allowable under the current SOC (System On Chip) state of a the high-voltage storage battery is determined; the engine fuel efficiency of the engine under the current rotary speed value and different engine torques is calculated; the torque of an engine torque setting point with lowest fuel consumption corresponding to the current rotary speed of the engine is determined; and the engine power generating torque is determined according to the required torque of the current power system and the engine torque with highest fuel efficiency. The torque processing method has the beneficial effects that proper engine torque and motor torque are obtained to improve the fuel economy.
Description
Technical field
The present invention relates to a kind of torque processing method of motor vehicle driven by mixed power.
Background technology
Under the overall background of energy shock and ecological deterioration, motor vehicle driven by mixed power is devoted to reduce consumption of fuel, reduces discharging.Motor vehicle driven by mixed power drives vehicle with driving engine and one or more motor, and therefore making the consumption of fuel of vehicle and discharging be lower than traditional vehicle becomes possibility.For driving engine, different engine working points has different work efficiencys, and generally speaking, the load of driving engine improves, and its work efficiency also can improve.For chaufeur, no matter hybrid power or traditional vehicle, the demand to power in the driving procedure is consistent.The mode that traditional vehicle changes engine load is the gear that changes change speed gear box, but for the change speed gear box of fixed speed ratio, the change of gear can only change engine load in limited range, can not reach optimum effect.Motor vehicle driven by mixed power can change the load of driving engine easily owing to increased motor by the mode that increases the electric power generation torque, improve the service efficiency of driving engine.The electric energy that the while motor sends can be stored to battery, when motor assist drives electric energy is discharged, thereby reaches the purpose that reduce fuel oil consumes.
Summary of the invention
The torque processing method that the purpose of this invention is to provide a kind of motor vehicle driven by mixed power obtains suitable motor torque and motor torque improving fuel economy, and overcomes present prior art above shortcomings.
The objective of the invention is to be achieved through the following technical solutions:
A kind of torque processing method of motor vehicle driven by mixed power may further comprise the steps:
(1) entire car controller receives the signals such as Das Gaspedal amplitude, the current rotating speed of driving engine, the current gear of vehicle and battery current electric quantity state by the CAN network, and entire car controller calculates according to the vehicle current state and obtains power system demand torque value;
(2) entire car controller is tabled look-up and is determined the driving engine maximum torque that allows under the current rotating speed of driving engine, determines that the driving engine maximum torque that allows looks into driving engine maximum torque and engine speed relationship table according to the current rotating speed of driving engine and table look-up and obtain;
(3) entire car controller is tabled look-up and is determined the motor maximum generation torque that allows under the high tension battery current electric quantity state, determine that the motor maximum generation torque that allows is that the default battery electric quantity of basis is looked into the torque of motor maximum generation and the battery electric quantity relation table obtains, when battery electric quantity is higher, the torque of motor maximum generation is less, when battery electric quantity was low, the torque of motor maximum generation was larger;
(4) fuel efficiency for engine under the current tachometer value of entire car controller computation of table lookup driving engine and the different motor torques, within the alternative torque settings scope that driving engine allows, choose the alternative setting value of motor torque according to certain torque interval, and look into the engine efficiency table according to engine speed and the alternative set point of motor torque and obtain fuel efficiency for engine; Choosing of the alternative torque settings point of driving engine is in alternative scope, chooses alternative set point with the interval of 0.5 N of rice; The alternative torque settings scope lower limit that driving engine allows equals the current torque of driving engine, and alternative torque settings range limit value equals the maximum permission torque of driving engine and the smaller value in the current torque of driving engine and the motor maximum generation torque sum;
(5) fuel efficiency for engine under the more different motor torque set point operating mode of entire car controller, the motor torque set point of motor torque set point corresponding to peak efficiency value after as optimization process wherein, by engine efficiency value corresponding to more alternative motor torque set point, choose wherein engine efficiency peak, its corresponding motor torque set point is the minimum motor torque set point torque of fuel discharge corresponding to present engine rotating speed; And
(6) entire car controller is determined the electric power generation torque according to the current demand torque of power system and the highest motor torque of fuel efficiency that provide, is set as the electric power generation torque according to the difference between the current demand torque of the driving engine that provides and the optimal engine torque.
Beneficial effect of the present invention is: the motor torque of optimum of the present invention and motor torque are determined by comparison engine efficient; For driving engine, can be set with a plurality of operation torques under the same rotating speed, utilize the generating torque of motor can guarantee that the torque-demand of power system is responded accurately; Be motor torque and electric power generation torque sum as long as guarantee chaufeur to the demand of output torque, can select motor torque and the corresponding motor torque of fuel efficiency optimum; Wherein, tabling look-up of engine efficiency is that mode with off-line is carried out.Obtain suitable motor torque and motor torque to improve fuel economy.
Description of drawings
The below is described in further detail the present invention with reference to the accompanying drawings.
Fig. 1 is the functional block diagram of the torque processing method of the described motor vehicle driven by mixed power of the embodiment of the invention.
Fig. 2 is the diagram of circuit of the torque processing method of the described motor vehicle driven by mixed power of the embodiment of the invention.
The specific embodiment
The torque processing method of the described a kind of motor vehicle driven by mixed power of the embodiment of the invention, the power system of wherein said motor vehicle driven by mixed power comprises driving engine, motor and battery; As shown in Figure 1, be applied to battery SOC and allow the generating torque with the maximum motor maximum that allows to obtain on the line on (absolute value) generating torque relation table.The current rotating speed of driving engine is applied to and obtains the maximum permission of driving engine torque on engine speed and the driving engine maximum torque relation table.The current rotating speed of driving engine, the current demand torque of driving engine, motor is maximum to allow generating torque and the maximum permission of driving engine torque to be applied on the algoritic module (determining driving engine and the motor torque that fuel discharge is minimum according to engine efficiency), obtains the minimum driving engine command torque of fuel discharge and motor command torque by comparison engine efficient.
As shown in Figure 2, the torque processing method of the described a kind of motor vehicle driven by mixed power of the embodiment of the invention may further comprise the steps:
Entire car controller is looked into the corresponding efficient that the engine efficiency table obtains driving engine according to the current rotating speed of driving engine and the torque of present engine demand, then take amplitude D_tq(0.5 ox rice) (initial value is the torque of present engine demand) increase motor torque on a upper moment motor torque basis, calculate needed electrical generator generating torque according to the motor torque after the torque of present engine demand and the increase;
Allow the generating torque according to current demand torque and motor maximum (absolute value), calculate corresponding motor torque; Calculate and allow torque with driving engine is maximum after complete, motor is maximum to be allowed the corresponding motor torque of generating torque and increases D_tq(0.5 ox rice) after motor torque compare, and get minimum value, then getting minimum engine torque and the current rotating speed of driving engine are tabled look-up, obtain corresponding engine efficiency;
Then relatively go up efficient (initial value is the corresponding efficient of demand torque) and the current new efficient in a moment, get motor torque corresponding to minimum value and motor torque.Then judge that gained increases D_tq(0.5 ox rice) motor torque or the electric power generation torque of calculating whether surpassed separately threshold limit value, if the determination result is NO, then get back to amplitude D_tq(0.5 ox rice) increase motor torque on a upper moment motor torque basis, if judged result is yes, then export gained motor torque and motor torque as command torque, calculate and finish.
The present invention is owing to the computation period at each entire car controller, all the torque of driving engine and motor under the current speed conditions of driving engine is optimized selection, the fuel efficiency of real-time calculation engine in the interval of optimizing, choose the corresponding motor torque of fuel efficiency peak, and utilize the electricity generate function of motor to guarantee that the torque-demand of automotive power obtains correct assurance.In the computation cycles of entire car controller each time, all the fuel efficiency of driving engine has been carried out real-time optimization like this, on the one hand the fuel efficiency of driving engine has obtained real-time optimization so that calculate the optimization that moment all realized fuel efficiency for engine at each, all the time so that the torque-demand of automotive power obtains continuous assurance, chaufeur can not realized unusual driving sensation yet simultaneously.Suitable motor torque and motor torque can improve fuel economy, and optimum motor torque and motor torque are determined by comparison engine efficient.In the vehicle real-world operation, corresponding to current rotating speed, chaufeur has a torque-demand to automotive power, in the situation without motor torque, can think that torque-demand to vehicle is the torque-demand to driving engine.For driving engine, can be set with a plurality of operation torques under the same rotating speed, utilize the generating torque of motor can guarantee that the torque-demand of power system is responded accurately, motor torque and electric power generation torque sum can be selected motor torque and the corresponding motor torque of fuel efficiency optimum as long as guarantee chaufeur to the demand of output torque.Wherein, tabling look-up of engine efficiency is that mode with off-line is carried out.
The present invention is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present invention; no matter but do any variation in its shape or structure; every have identical with a application or akin technical scheme, all drops within protection scope of the present invention.
Claims (8)
1. the torque processing method of a motor vehicle driven by mixed power is characterized in that, may further comprise the steps:
(1) entire car controller receives the signals such as Das Gaspedal amplitude, the current rotating speed of driving engine, the current gear of vehicle and battery current electric quantity state by the CAN network, and entire car controller calculates according to the vehicle current state and obtains power system demand torque value;
(2) entire car controller is tabled look-up and is determined the driving engine maximum torque that allows under the current rotating speed of driving engine;
(3) entire car controller is tabled look-up and is determined the motor maximum generation torque that allows under the high tension battery current electric quantity state;
(4) fuel efficiency for engine under the current tachometer value of entire car controller computation of table lookup driving engine and the different motor torques;
(5) fuel efficiency for engine under the more different motor torque set point operating mode of entire car controller, wherein the motor torque set point of motor torque set point corresponding to peak efficiency value after as optimization process; And
(6) entire car controller is determined the electric power generation torque according to the current demand torque of power system and the highest motor torque of fuel efficiency that provide.
2. the torque processing method of motor vehicle driven by mixed power as claimed in claim 1, it is characterized in that: in step (2), the driving engine maximum torque that determine to allow is looked into driving engine maximum torque and engine speed relationship table according to the current rotating speed of driving engine and is tabled look-up and obtain.
3. the torque processing method of motor vehicle driven by mixed power as claimed in claim 1, it is characterized in that: in step (3), determine that the motor maximum generation torque that allows is that the default battery electric quantity of basis is looked into the torque of motor maximum generation and the battery electric quantity relation table obtains, when battery electric quantity is higher, the torque of motor maximum generation is less, when battery electric quantity was low, the torque of motor maximum generation was larger.
4. the torque processing method of motor vehicle driven by mixed power as claimed in claim 1, it is characterized in that: in step (4), within the alternative torque settings scope that driving engine allows, choose the alternative setting value of motor torque according to certain torque interval, and look into the engine efficiency table according to engine speed and the alternative set point of motor torque and obtain fuel efficiency for engine.
5. the torque processing method of motor vehicle driven by mixed power as claimed in claim 4, it is characterized in that: choosing of the alternative torque settings point of driving engine is in alternative scope, chooses alternative set point with the interval of 0.5 N of rice.
6. the torque processing method of motor vehicle driven by mixed power as claimed in claim 5, it is characterized in that: the alternative torque settings scope lower limit that driving engine allows equals the current torque of driving engine, and alternative torque settings range limit value equals the maximum permission torque of driving engine and the smaller value in the current torque of driving engine and the motor maximum generation torque sum.
7. the torque processing method of motor vehicle driven by mixed power as claimed in claim 1, it is characterized in that: in step (5), by engine efficiency value corresponding to more alternative motor torque set point, choose wherein engine efficiency peak, its corresponding motor torque set point is the minimum motor torque set point torque of fuel discharge corresponding to present engine rotating speed.
8. the torque processing method of motor vehicle driven by mixed power as claimed in claim 1 is characterized in that: in step (6), be set as the electric power generation torque according to the difference between the current demand torque of the driving engine that provides and the optimal engine torque.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210488404.0A CN102963354B (en) | 2012-11-26 | 2012-11-26 | The torque processing method of motor vehicle driven by mixed power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210488404.0A CN102963354B (en) | 2012-11-26 | 2012-11-26 | The torque processing method of motor vehicle driven by mixed power |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102963354A true CN102963354A (en) | 2013-03-13 |
| CN102963354B CN102963354B (en) | 2016-08-10 |
Family
ID=47793872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210488404.0A Expired - Fee Related CN102963354B (en) | 2012-11-26 | 2012-11-26 | The torque processing method of motor vehicle driven by mixed power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102963354B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105059136A (en) * | 2015-09-18 | 2015-11-18 | 重庆长安汽车股份有限公司 | Processing method and device for vehicle control data and controller |
| CN105270381A (en) * | 2014-05-27 | 2016-01-27 | 深圳电擎科技有限公司 | Control method and device for hybrid electric vehicle |
| CN105620481A (en) * | 2014-10-27 | 2016-06-01 | 北汽福田汽车股份有限公司 | Vehicle control method and system |
| CN106256629A (en) * | 2015-06-19 | 2016-12-28 | 铃木株式会社 | Motor vehicle driven by mixed power |
| CN108790774A (en) * | 2018-07-12 | 2018-11-13 | 杭州休伦科技有限公司 | Multimode hybrid power system based on single planetary row and its control method |
| CN109141910A (en) * | 2018-05-23 | 2019-01-04 | 中国汽车技术研究中心有限公司 | A kind of measurement condition conversion method from vehicle to engine |
| CN109353326A (en) * | 2018-09-28 | 2019-02-19 | 潍柴动力股份有限公司 | A kind of engine torque control method and device |
| CN109703346A (en) * | 2017-10-25 | 2019-05-03 | 上海汽车集团股份有限公司 | Bi-motor automobile dynamic system and its control method and device |
| CN110056436A (en) * | 2019-06-24 | 2019-07-26 | 潍柴动力股份有限公司 | A kind of hybrid power system engine runaway control method and device |
| CN110239512A (en) * | 2019-05-10 | 2019-09-17 | 浙江吉利控股集团有限公司 | A kind of energy management method and system of hybrid vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070032926A1 (en) * | 2005-08-02 | 2007-02-08 | Ford Global Technologies, Llc | Optimal engine operating power management strategy for a hybrid electric vehicle powertrain |
| JP2010132086A (en) * | 2008-12-03 | 2010-06-17 | Toyota Motor Corp | Power output device, vehicle including the same and method for controlling the power output device |
| WO2011151712A1 (en) * | 2010-06-04 | 2011-12-08 | Toyota Jidosha Kabushiki Kaisha | Hybrid vehicle and control method for the same |
| WO2012028739A1 (en) * | 2010-09-04 | 2012-03-08 | Jaguar Cars Limited | Controller and method of control of a hybrid electric vehicle |
| CN102652087A (en) * | 2009-12-16 | 2012-08-29 | 本田技研工业株式会社 | Hybrid vehicle and control method thereof |
-
2012
- 2012-11-26 CN CN201210488404.0A patent/CN102963354B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070032926A1 (en) * | 2005-08-02 | 2007-02-08 | Ford Global Technologies, Llc | Optimal engine operating power management strategy for a hybrid electric vehicle powertrain |
| JP2010132086A (en) * | 2008-12-03 | 2010-06-17 | Toyota Motor Corp | Power output device, vehicle including the same and method for controlling the power output device |
| CN102652087A (en) * | 2009-12-16 | 2012-08-29 | 本田技研工业株式会社 | Hybrid vehicle and control method thereof |
| WO2011151712A1 (en) * | 2010-06-04 | 2011-12-08 | Toyota Jidosha Kabushiki Kaisha | Hybrid vehicle and control method for the same |
| WO2012028739A1 (en) * | 2010-09-04 | 2012-03-08 | Jaguar Cars Limited | Controller and method of control of a hybrid electric vehicle |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105270381A (en) * | 2014-05-27 | 2016-01-27 | 深圳电擎科技有限公司 | Control method and device for hybrid electric vehicle |
| CN105270381B (en) * | 2014-05-27 | 2018-02-02 | 深圳电擎科技有限公司 | The control method and device of hybrid vehicle |
| CN105620481A (en) * | 2014-10-27 | 2016-06-01 | 北汽福田汽车股份有限公司 | Vehicle control method and system |
| CN106256629A (en) * | 2015-06-19 | 2016-12-28 | 铃木株式会社 | Motor vehicle driven by mixed power |
| CN105059136A (en) * | 2015-09-18 | 2015-11-18 | 重庆长安汽车股份有限公司 | Processing method and device for vehicle control data and controller |
| CN109703346A (en) * | 2017-10-25 | 2019-05-03 | 上海汽车集团股份有限公司 | Bi-motor automobile dynamic system and its control method and device |
| CN109141910A (en) * | 2018-05-23 | 2019-01-04 | 中国汽车技术研究中心有限公司 | A kind of measurement condition conversion method from vehicle to engine |
| CN108790774A (en) * | 2018-07-12 | 2018-11-13 | 杭州休伦科技有限公司 | Multimode hybrid power system based on single planetary row and its control method |
| CN108790774B (en) * | 2018-07-12 | 2024-06-04 | 杭州休伦科技有限公司 | Multi-mode hybrid power system based on single planetary gear set and control method thereof |
| CN109353326A (en) * | 2018-09-28 | 2019-02-19 | 潍柴动力股份有限公司 | A kind of engine torque control method and device |
| CN110239512A (en) * | 2019-05-10 | 2019-09-17 | 浙江吉利控股集团有限公司 | A kind of energy management method and system of hybrid vehicle |
| CN110239512B (en) * | 2019-05-10 | 2021-01-05 | 浙江吉利控股集团有限公司 | Energy management method and system for hybrid vehicle |
| CN110056436A (en) * | 2019-06-24 | 2019-07-26 | 潍柴动力股份有限公司 | A kind of hybrid power system engine runaway control method and device |
| CN110056436B (en) * | 2019-06-24 | 2019-09-13 | 潍柴动力股份有限公司 | A kind of hybrid power system engine runaway control method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102963354B (en) | 2016-08-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102963354A (en) | Torque processing method of hybrid vehicle | |
| CN104477041B (en) | A kind of power follow-up control method of pure electric automobile distance increasing unit | |
| CN103359115B (en) | A kind of extended-range electric vehicle and entire car controller thereof and electricity-generating control method and system | |
| CN107065550B (en) | Range-extending electric vehicle efficiency optimization control method based on threshold power calculation | |
| CN101708694B (en) | Control system of mileage increaser of electric vehicle and control method thereof | |
| CN102431550B (en) | Method for controlling hybrid power vehicle | |
| CN106274510B (en) | A kind of range extended electric vehicle power system and efficiency hierarchical coordinative control method of four-wheel drive | |
| CN106347133B (en) | A kind of stroke-increasing electric automobile efficiency hierarchical coordinative optimal control method of four-wheel drive | |
| CN102431547A (en) | Method for controlling chargeable hybrid power vehicle | |
| CN104760591B (en) | Hybrid power complex control system | |
| CN101574969A (en) | Control method of operating point of hybrid electric vehicle engine | |
| CN105620466B (en) | The control method and system of vehicle | |
| CN106585618B (en) | A kind of serial type hybrid automobile energy management control method and device | |
| CN104340221A (en) | Energy recovery control method of double-planet-row four-axis hybrid power system | |
| CN102963353A (en) | Hybrid power system energy management method based on neural network | |
| CN110979335B (en) | Hybrid power system energy efficiency calculation method, calculation system and vehicle | |
| CN104494416A (en) | Energy management system and energy management method for tandem type hybrid power electro-car | |
| CN109177968A (en) | A kind of drive mode control method of power dividing type hybrid vehicle | |
| CN113147514B (en) | Multi-energy-source hydrogen fuel cell automobile energy management control method and system | |
| CN105620481B (en) | The control method and system of vehicle | |
| CN105313712A (en) | Power control method of range extender | |
| CN103359108A (en) | Maximum available power generation torque calculating method and system of hybrid electric vehicle motor | |
| CN103112364A (en) | Real-time control method and device for automotive electric balance | |
| CN106627098B (en) | A kind of Series-Parallel HEV dynamical system control method and device | |
| CN108973977A (en) | A kind of hybrid vehicle energy outgoing management method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160810 Termination date: 20201126 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |