CN105270381A - Control method and device for hybrid electric vehicle - Google Patents

Control method and device for hybrid electric vehicle Download PDF

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Publication number
CN105270381A
CN105270381A CN201410225504.3A CN201410225504A CN105270381A CN 105270381 A CN105270381 A CN 105270381A CN 201410225504 A CN201410225504 A CN 201410225504A CN 105270381 A CN105270381 A CN 105270381A
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driving
torque
driving torque
electric
engine
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CN105270381B (en
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蒋文
谢亮
盛原友
任春茂
陈星�
彭阿勇
王秀楠
黄广龙
胡立明
陈明春
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Shenzhen Zhongding Intellectual Property Innovation Development Co ltd
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Shenzhen Electricity Qing Science And Technology Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

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  • Electric Propulsion And Braking For Vehicles (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

In order to solve the conventional technical problem, the embodiment of the invention provides a control method for a hybrid electric vehicle. The method comprises following steps: acquiring current rotating speed rM of an engine, output torque TE0 of an original target of the engine, current output torque TM0 of an electric device; obtaining output torque TEb at the most efficient point during work of the engine by search according to rM from a pre-set rotating speed-torque reflection database of the engine at the most efficient point; obtaining output torque TM1 of the present target of the electric device based on TE0, TM0 and TEb, wherein TM1 is equal to TM0 plus TE0 minus TEb; and controlling the engine to output corresponding torque based on TEb and controlling the electric device to output corresponding torque based on TM1. The embodiment of the invention further provides a control device for the hybrid electric vehicle.The control method and device for the hybrid electric vehicle have following beneficial effects: a driving system of the hybrid electric vehicle can work in a highly-efficient area such that the optimal fuel economy and optimal discharge are obtained.

Description

The control method of hybrid vehicle and device
Technical field
The present invention relates to field of hybrid electric vehicles, particularly relate to a kind of control method and device of hybrid vehicle.
Background technology
Hybrid vehicle refers to the automobile with two or more energy and power sources, and the most popular at present what also the most easily realize is oily power and electrodynamic mixing.The drive system of the hybrid vehicle of the type mainly comprises driving engine and electric device.Difference and conventional fuel oil automobile, hybrid vehicle is mainly by under the flexible modulation of vehicle energy management system, and the Driving Torque of each propulsion source of reasonable distribution, forms different power system operational patterns, to adapt to the demand of different driving cycles.
At present, the Driving Torque distribution method of the propulsion source of hybrid vehicle is as follows: the size of the Driving Torque of driving engine depends primarily on Das Gaspedal value, and the Driving Torque of electric device is the compensating torque of making the Driving Torque of driving engine based on car load torque-demand.This torque distribution method can not make the drive system of hybrid vehicle be operated in efficient district usually, thus reaches the optimal control such as optimal fuel economy or optimum discharge target.
Summary of the invention
For the technical matters that the drive system work efficiency of aforementioned existing hybrid vehicle is not high, the invention provides a kind of control method and device of hybrid vehicle.
Embodiments provide a kind of control method of hybrid vehicle, described hybrid vehicle comprises drive system and electrokinetic cell, and described drive system comprises driving engine and electric device, comprising:
Obtain the current rotating speed r of described driving engine m, described driving engine former target Driving Torque T e0, described electric device current Driving Torque T m0;
According to described r m, from the most high-efficiency point rotational speed and torque mapping library of the driving engine preset, inquiry obtains the Driving Torque T of described engine operation at most high-efficiency point eb;
Based on described T e0, described T m0, described T eb, obtain the existing target Driving Torque T of described electric device m1: T m1=T m0+ T e0-T eb;
According to described T eb, control described driving engine and export corresponding torque, and according to described T m1, control described electric device and export correspondingly torque.
Wherein, described electric device is specially electric-driving generation integrating machine, when described electric-driving generation integrating machine is operated in electric model, described electrokinetic cell provides electric power for described electric-driving generation integrating machine, when described electric-driving generation integrating machine is operated in power generation mode, described electric-driving generation integrating machine is described power battery charging;
Described " according to described T eb, control described driving engine and export corresponding torque, and according to described T m1, control described electric device and export correspondingly torque " step, comprising:
Obtain the maximum permission charge-discharge electric power of described electrokinetic cell;
According to the maximum permission charge-discharge electric power of described electrokinetic cell, obtain the battery maximum permission Driving Torque T of described electric-driving generation integrating machine max1;
According to the electric-driving generation integrating machine full-throttle characteristics figure preset, obtain the body maximum permission Driving Torque T of described electric-driving generation integrating machine max2;
By described T max1, described T max2, described T m1in minimum value be defined as the realistic objective Driving Torque T of described electric-driving generation integrating machine mE;
Based on described T e0, described T m0, described T e1, obtain the realistic objective Driving Torque T of described driving engine e1: T e1=T m0+ T e0-T mE;
Control described electric-driving generation integrating machine Driving Torque T mE, and control described engine output torque T e1.
Wherein, describedly " described electric-driving generation integrating machine Driving Torque T is controlled mE, and control described engine output torque T e1" step, be specially:
Control the Driving Torque of described electric-driving generation integrating machine from described T m1smooth gradual change is described T mE, and the Driving Torque controlling described driving engine is described T from current Driving Torque smooth gradual change e1, in described smooth gradual change process, the Driving Torque of described electric-driving generation integrating machine and the Driving Torque sum of described driving engine are T m0+ T e0.
Wherein, described electric device comprises freestanding electrical motor and electrical generator, and described electrokinetic cell is used for for described motor, and described electrical generator is used for for described power battery charging;
Described " according to described r m, from the most high-efficiency point rotational speed and torque mapping library of the driving engine preset, inquiry obtains the Driving Torque T of described engine operation at most high-efficiency point eb" step after, also comprise:
More described T e0with described T ebsize;
As described T e0be greater than described T ebtime, by the current Driving Torque T of described electric device m01be defined as the driving torque T of the current output of described electrical motor m0, described " based on described T e0, described T m0, described T eb, obtain the existing target Driving Torque T of described electric device m1: T m1=T m0+ T e0-T eb" step, comprising:
Based on described T e0, described T m01, described T eb, obtain the existing target Driving Torque T of described electrical motor m2=T m01+ T e0-T eb, the existing target Driving Torque of described electrical motor is the existing target Driving Torque of described electric device;
As described T e0be less than described T ebtime, by the generating torque T of the current output of described electrical generator g01be defined as the current Driving Torque T of described electric device m0, described " based on described T e0, described T m0, described T eb, obtain the existing target Driving Torque T of described electric device m1: T m1=T m0+ T e0-T eb" step, be specially:
Based on described T e0, described T g01, described T eb, obtain the existing target Driving Torque T of described electrical generator g1=T g01+ T e0-T eb, the existing target Driving Torque of described electrical generator is the existing target Driving Torque of described electric device.
Wherein, described " according to described T eb, control described driving engine and export corresponding torque, and according to described T m1, control described electric device and export correspondingly torque " step, be specially:
As described T e0be greater than described T ebtime, control described driving engine based on described T ebexport corresponding wheel driving torque, and the described electrical motor controlling described electric device is based on described T m2export correspondingly wheel driving torque;
As described T e0be less than described T ebtime, control described driving engine based on described T ebexport corresponding wheel driving torque, and the described electrical generator controlling described electric device is based on described T g1export correspondingly charge torque.
Wherein, described " as described T e0be greater than described T ebtime, control described driving engine based on described T ebexport corresponding wheel driving torque, and control described electrical motor based on described T m2export correspondingly wheel driving torque " step, comprising:
As described T e0be greater than described T ebtime, according to the full-throttle characteristics figure of default electrical motor, obtain the body maximum permission Driving Torque T of described electrical motor max3;
According to the maximum permission charge-discharge electric power of described electrokinetic cell, obtain the battery maximum permission Driving Torque T of described electrical motor max4;
By described T max3, described T max4, described T m2in minimum value be defined as the realistic objective Driving Torque T of described electrical motor m;
Based on described T e0, described T m0, described T m, obtain the realistic objective Driving Torque T of described driving engine e2: T e2=T m0+ T e0-T m;
The wheel driving torque controlling the output of described driving engine is described T e2; The wheel driving torque controlling the output of described electrical motor is described T m.
Wherein, described " as described T e0be less than described T ebtime, the described driving engine of described control is based on described T ebexport corresponding wheel driving torque, and control described electrical generator based on described T g1export correspondingly charge torque " step, comprising:
As described T e0be less than described T ebtime, according to the full-throttle characteristics figure of the electrical generator preset, obtain the body maximum permission Driving Torque T of described electrical generator max5;
According to the maximum permission charge-discharge electric power of described electrokinetic cell, obtain the battery maximum permission Driving Torque T of described electrical generator max6;
By described T max5, described T max6, described T g1in minimum value be defined as the realistic objective Driving Torque T of described electrical generator g;
Based on described T e0, described T m0, described T g, obtain the realistic objective Driving Torque T of described electrical generator e3: T e3=T m0+ T e0-T g;
The wheel driving torque controlling the output of described driving engine is described T e3; The charge torque controlling the output of described electrical generator is described T g.
The embodiment of the present invention additionally provides a kind of control setup of hybrid vehicle, and described hybrid vehicle comprises drive system and electrokinetic cell, and described drive system comprises driving engine and electric device, and it comprises:
Acquisition module, for obtaining the current rotating speed r of described driving engine m, described driving engine former target Driving Torque T e0, described electric device current Driving Torque T m0;
Enquiry module, for according to described r m, from the most high-efficiency point rotational speed and torque mapping library of the driving engine preset, inquiry obtains the Driving Torque T of described engine operation at most high-efficiency point eb;
The existing target Driving Torque acquisition module of electric device, for based on described T e0, described T m0, described T eb, obtain the existing target Driving Torque T of described electric device m1: T m1=T m0+ T e0-T eb;
Processing module, for according to described T eb, control described driving engine and export corresponding torque, and according to described T m1, control described electric device and export correspondingly torque.
Wherein, described electric device is specially electric-driving generation integrating machine, when described electric-driving generation integrating machine is operated in electric model, described electrokinetic cell provides electric power for described electric-driving generation integrating machine, when described electric-driving generation integrating machine is operated in power generation mode, described electric-driving generation integrating machine is described power battery charging;
Described processing module comprises:
Maximum power acquiring unit, for obtaining the maximum permission charge-discharge electric power of described electrokinetic cell;
T max1acquiring unit, for the maximum permission charge-discharge electric power according to described electrokinetic cell, obtains the battery maximum permission Driving Torque T of described electric-driving generation integrating machine max1;
T max2acquiring unit, according to the electric-driving generation integrating machine full-throttle characteristics figure preset, obtains the body maximum permission Driving Torque T of described electric-driving generation integrating machine max2;
T mEacquiring unit, for by described T max1, described T max2, described T m1in minimum value be defined as the realistic objective Driving Torque T of described electric-driving generation integrating machine mE;
T e1acquiring unit, for based on described T e0, described T m0, described T e1, obtain the realistic objective Driving Torque T of described driving engine e1: T e1=T m0+ T e0-T mE;
Torque output control unit, for controlling described electric-driving generation integrating machine Driving Torque T mE, and control described engine output torque T e1.
Wherein, described first torque output control unit is specifically for controlling the Driving Torque of described electric-driving generation integrating machine from described T m1smooth gradual change is described T mE, and the Driving Torque controlling described driving engine is described T from current Driving Torque smooth gradual change e1, in described smooth gradual change process, the Driving Torque of described electric-driving generation integrating machine and the Driving Torque sum of described driving engine are T m0+ T e0.
Wherein, described electric device comprises freestanding electrical motor and electrical generator, and described electrokinetic cell is used for for described motor, and described electrical generator is used for for described power battery charging;
Described control setup also comprises:
Comparison module, for more described T e0with described T ebsize;
First determination module, for working as described T e0be greater than described T ebtime, by the current Driving Torque T of described electric device m01be defined as the driving torque T of the current output of described electrical motor m0; The existing target Driving Torque acquisition module of described electric device is specifically for based on described T e0, described T m01, described T eb, obtain the existing target Driving Torque T of described electrical motor m2=T m0+ T e0-T eb, the existing target Driving Torque of described electrical motor is the existing target Driving Torque of described electric device;
Second determination module, for working as described T e0be less than described T ebtime, by the generating torque T of the current output of described electrical generator g01be defined as the current Driving Torque T of described electric device m0; The existing target Driving Torque acquisition module of described electric device is specifically for based on described T e0, described T g01, described T eb, obtain the existing target Driving Torque T of described electrical generator g1=T g01+ T e0-T eb, the existing target Driving Torque of described electrical generator is the existing target Driving Torque of described electric device.
Wherein, described processing module comprises:
First processing unit, for working as described T e0be greater than described T ebtime, control described driving engine based on described T ebexport corresponding wheel driving torque, and the described electrical motor controlling described electric device is based on described T m2export correspondingly wheel driving torque;
Second processing unit, for working as described T e0be less than described T ebtime, control described driving engine based on described T ebexport corresponding wheel driving torque, and the described electrical generator controlling described electric device is based on described T g1export correspondingly charge torque.
Wherein, described first processing unit comprises:
T max3obtain subelement, for working as described T e0be greater than described T ebtime, according to the full-throttle characteristics figure of default electrical motor, obtain the body maximum permission Driving Torque T of described electrical motor max3;
T max4obtain subelement, for the maximum permission charge-discharge electric power according to described electrokinetic cell, obtain the battery maximum permission Driving Torque T of described electrical motor max4;
T mobtain subelement, for by described T max3, described T max4, described T m2in minimum value be defined as the realistic objective Driving Torque T of described electrical motor m;
T e2obtain subelement, for based on described T e0, described T m0, described T m, obtain the realistic objective Driving Torque T of described driving engine e2: T e2=T m0+ T e0-T m;
First torque exports and controls subelement, and the wheel driving torque exported for controlling described driving engine is described T e2; The wheel driving torque controlling the output of described electrical motor is described T m.
Wherein, described second processing unit comprises:
T max5obtain subelement, for working as described T e0be less than described T ebtime, according to the full-throttle characteristics figure of the electrical generator preset, obtain the body maximum permission Driving Torque T of described electrical generator max5;
T max6obtain subelement, for the maximum permission charge-discharge electric power according to described electrokinetic cell, obtain the battery maximum permission Driving Torque T of described electrical generator max6;
T gobtain subelement, for by described T max5, described T max6, described T g1in minimum value be defined as the realistic objective Driving Torque T of described electrical generator g;
T e3obtain subelement, for based on described T e0, described T m0, described T g, obtain the realistic objective Driving Torque T of described electrical generator e3: T e3=T m0+ T e0-T g;
Second torque exports and controls subelement, and the wheel driving torque exported for controlling described driving engine is described T e3, the charge torque controlling the output of described electrical generator is described T g.
The object of the invention is to be achieved through the following technical solutions:
The embodiment of the present invention is by presetting the most high-efficiency point rotational speed and torque mapping library of driving engine, and inquiry obtains answering Driving Torque T when driving engine is operated in most high-efficiency point under current rotating speed eband control driving engine and export corresponding torque based on most high-efficiency point, export corresponding compensating torque by electric device based on car load torque-demand, thus reach the object making driving engine as far as possible be operated in most high-efficiency point, finally improve the fuel consumption and emission low stain of hybrid vehicle.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the first embodiment of the control method of hybrid vehicle of the present invention;
Fig. 2 is the performance diagram of driving engine;
Fig. 3 is the system chart of the hybrid electric vehicle of paralleling model;
Fig. 4 is the schematic flow sheet of the second embodiment of the control method of hybrid vehicle of the present invention;
Fig. 5 is the system chart of the hybrid vehicle of series parallel type;
Fig. 6 is the schematic flow sheet of the 3rd embodiment of the control method of hybrid vehicle of the present invention;
Fig. 7 is the performance diagram of electrical motor;
Fig. 8 is the structural representation of the first embodiment of the control setup of hybrid vehicle of the present invention;
Fig. 9 is the structural representation of the second embodiment of the control setup of hybrid vehicle of the present invention;
Figure 10 is the structural representation of the 3rd embodiment of the control setup of hybrid vehicle of the present invention.
Detailed description of the invention
In order to make technical matters solved by the invention, technical scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Please refer to Fig. 1, is the schematic flow sheet of the first embodiment of the control method of hybrid vehicle of the present invention.Particularly, this control method mainly comprises the following steps:
Step S11, obtains the current rotating speed r of driving engine m, driving engine former target Driving Torque T e0, electric device current Driving Torque T m0.Wherein, T e0it is the former target Driving Torque of driving engine determined according to Das Gaspedal value.Hybrid vehicle comprises drive system and electrokinetic cell, and drive system comprises driving engine and electric device.According to the bind mode that hybrid power drives, when hybrid vehicle possesses parallel connection type hybrid power system, electric device is specially electric-driving generation integrating machine, and when hybrid vehicle possesses series-parallel hybrid electric system, electric device comprises freestanding electrical motor and freestanding electrical generator.
Step S12, according to r m, from the most high-efficiency point rotational speed and torque mapping library of the driving engine preset, inquiry obtains the Driving Torque T of engine operation at most high-efficiency point eb.Concerning driving engine, the efficiency of driving engine has very large relation with its rotating speed, torque, in actual mechanical process, can according to engine speed, torque, by the torque curve (motor characteristic curve figure specifically shown in Figure 2) of high-efficiency point most under its each rotating speed of test calibration, thus finally obtain the most high-efficiency point rotational speed and torque mapping library of driving engine.
Step S13, based on T e0, T m0, T eb, obtain the existing target Driving Torque T of electric device m1: T m1=T m0+ T e0-T eb.
Step S14, according to T eb, control driving engine and export corresponding torque, and according to T m1, control electric device and export correspondingly torque.
The embodiment of the present invention is by presetting the most high-efficiency point rotational speed and torque mapping library of driving engine, and inquiry obtains answering Driving Torque T when driving engine is operated in most high-efficiency point under current rotating speed eband control driving engine and export corresponding torque based on most high-efficiency point, export corresponding compensating torque by electric device based on car load torque-demand, thus reach the object making driving engine as far as possible be operated in most high-efficiency point, finally improve the fuel consumption and emission low stain of hybrid vehicle.
Hybrid vehicle is mainly divided into series, parallel and series-parallel connection three major types.Wherein, series model electrical motor is as propulsion source, and the effect of driving engine is that drive electrical generators charges the battery, and this there be limited evidence currently of use, dimension is not described in embodiments of the present invention.The embodiment of the present invention is introduced mainly for paralleling model and series-parallel connection pattern.
For the hybrid electric vehicle of paralleling model, as shown in Figure 3, driving engine and electric-driving generation integrating machine (i.e. " motor/generator " in figure) both can work independently as propulsion source, also can work as propulsion source together, drove wheel running.And when only driving engine is as propulsion source, electric-driving generation integrating machine also as electrical generator use, can charge to electrokinetic cell (i.e. " storage battery " in figure).Now, electric device is specially electric-driving generation integrating machine, and when electric-driving generation integrating machine is operated in electric model, electrokinetic cell provides electric power for electric-driving generation integrating machine, when electric-driving generation integrating machine is operated in power generation mode, electric-driving generation integrating machine is power battery charging.
Please refer to the drawing 4 is schematic flow sheets of the second embodiment of the control method of hybrid vehicle of the present invention.This embodiment introduces the control method of the hybrid vehicle possessing parallel connection type hybrid power system.This control method comprises:
Step S21, obtains the current rotating speed r of driving engine m, driving engine former target Driving Torque T e0, electric-driving generation integrating machine current Driving Torque T m0.Wherein, T e0it is the former target Driving Torque of driving engine determined according to Das Gaspedal value.
Step S22, according to r m, from the most high-efficiency point rotational speed and torque mapping library of the driving engine preset, inquiry obtains the Driving Torque T of engine operation at most high-efficiency point eb.Concerning driving engine, the efficiency of driving engine has very large relation with its rotating speed, torque, in actual mechanical process, can according to engine speed, torque, by the torque curve (motor characteristic curve figure specifically shown in Figure 2) of high-efficiency point most under its each rotating speed of test calibration, thus finally obtain the most high-efficiency point rotational speed and torque mapping library of driving engine.
Step S23, based on T e0, T m0, T eb, obtain the existing target Driving Torque T of electric-driving generation integrating machine m1: T m1=T m0+ T e0-T eb.
Step S24, obtains the maximum permission charge-discharge electric power of electrokinetic cell.Concerning electrokinetic cell, the charge-discharge electric power of the current permission of battery is with the current SOC(stateofcharge of battery, residual capacity) and battery temperature have much relations, if over-charging of battery or mistake are put, the life-span all reducing battery even causes cell damage, therefore need the SOC according to battery and temperature, demarcate the maximum charge power of the corresponding each point of battery and maximum discharge power.SOC is higher, temperature is higher, then charge power is lower, and SOC is lower, temperature is higher, then discharge power is lower.Often kind of battery SOC all has the value of normal operating range k1 ~ k2(k1, a k2 different and different according to different battery specifications model), when battery SOC is lower than k1, discharge power is allowed to be 0 substantially, when higher than k2, allow charge power to be 0 substantially, unified being placed in the form of demarcation of process exceeding normal range carries out tabling look-up processing.
Step S25, according to the maximum permission charge-discharge electric power of electrokinetic cell, obtains the battery maximum permission Driving Torque T of electric-driving generation integrating machine max1.
Step S25 specifically comprises: judge T m1whether be greater than 0; When judged result is for being, show that electric-driving generation integrating machine is in electric model, electrokinetic cell is that electric-driving generation integrating machine is powered, now, and T max1value should be the electronic torque value of maximum permission of electric-driving generation integrating machine; When judged result is no, show that electric-driving generation integrating machine is in power generation mode, electric-driving generation integrating machine is power battery charging, now, and T max1value should be the current maximum permission generating torque value of electric-driving generation integrating machine.
Wherein, the maximum permission charge-discharge electric power of electrokinetic cell comprises battery maximum permission discharge power and maximum permission charge power.The current maximum permission generating torque of electric-driving generation integrating machine is: 9550 × η 1the Current mechanical rotating speed of × electrokinetic cell maximum permission charge power ÷ electric-driving generation integrating machine, wherein, η 1for changes mechanical energy is the efficiency of electric energy by electric-driving generation integrating machine.The electronic torque of maximum permission of electric-driving generation integrating machine is: 9550 × η 2the Current mechanical rotating speed of × battery maximum permission discharge power ÷ electric-driving generation integrating machine, wherein, η 2the electric energy conversion provided by electrokinetic cell for electric-driving generation integrating machine is the efficiency of mechanical energy.
Step S26, according to the full-throttle characteristics of the electric-driving generation integrating machine preset, obtains the body maximum permission Driving Torque T of electric-driving generation integrating machine max2.
Step S27, by T max1, T max2, T m1in minimum value be defined as the realistic objective Driving Torque T of electric-driving generation integrating machine mE.
Step S28, based on T e0, T m0, T e1, obtain the realistic objective Driving Torque T of driving engine e1:
T E1=T M0+T E0-T ME。
Step S29, controls electric-driving generation integrating machine Driving Torque T mE, and control engine output torque T e1.
After the realistic objective Driving Torque of the electric-driving generation integrating machine after obtaining amplitude limit and driving engine, in order to the adjustment making system level and smooth, and do not cause producing electrokinetic cell and body itself impacting, need the smoothing process of Driving Torque to electric-driving generation integrating machine and driving engine.Therefore, step S29 specifically should be: control the Driving Torque of described electric-driving generation integrating machine from T m1smooth gradual change is T mE, and the Driving Torque controlling driving engine is T from current Driving Torque smooth gradual change e1, in smooth gradual change process, the Driving Torque of electric-driving generation integrating machine and the Driving Torque sum of driving engine are T m0+ T e0.
The embodiment of the present invention is by presetting the most high-efficiency point rotational speed and torque mapping library of driving engine, and inquiry obtains answering Driving Torque T when driving engine is operated in most high-efficiency point under current rotating speed eband control driving engine and export corresponding torque based on most high-efficiency point, corresponding compensating torque is exported based on car load torque-demand by electric-driving generation integrating machine, thus reach the object making driving engine as far as possible be operated in most high-efficiency point, finally improve the fuel consumption and emission low stain of hybrid vehicle.In addition; when making the efficient district of engine operation; the embodiment of the present invention also takes into full account the ability of electric-driving generation integrating machine and electrokinetic cell; in implementation process, amplitude limit is carried out to the Driving Torque of electric-driving generation integrating machine; again according to the realistic objective Driving Torque of car load Driving Torque demand determination driving engine, thus protect electrokinetic cell and electric-driving generation integrating machine fully.
For the hybrid electric vehicle of series-parallel connection pattern, the system chart of Series-Parallel HEV as shown in Figure 5, the same with parallel, driving engine and electrical motor (i.e. " motor " in figure) both can work independently as propulsion source, also can work as propulsion source together, drive wheel running.When different, under series parallel type, electrical motor and electrical generator independently separate, and therefore no matter, system all may be simultaneously operated in motoring condition and generating state.When being in this pattern of series parallel type, when keeping total Driving Torque constant, by adjusting the Driving Torque of driving engine, electrical motor and electrical generator, make system works in efficient district.
Please refer to Fig. 6, is the schematic flow sheet of the 3rd embodiment of the control method of hybrid vehicle of the present invention.This embodiment introduces the control method of the hybrid vehicle possessing series-parallel hybrid electric system, and now, electric device comprises freestanding electrical motor and electrical generator, and electrokinetic cell is used for for motor, and electrical generator is used for for power battery charging.The method comprises the following steps:
Step S31, obtains the current rotating speed r of driving engine m, driving engine former target Driving Torque T e0, electric device current Driving Torque T m0.Wherein, T e0it is the former target Driving Torque of driving engine determined according to Das Gaspedal value.
Step S32, according to r m, from the most high-efficiency point rotational speed and torque mapping library of the driving engine preset, inquiry obtains the Driving Torque T of engine operation at most high-efficiency point eb.
Step S33, compares T e0with T ebsize, work as T e0be greater than T ebtime, enter step S14, work as T e0be less than T ebtime enter step S16.
Step S34, works as T e0be greater than T ebtime, by the current Driving Torque T of electric device m01be defined as the driving torque T of the current output of electrical motor m0, and based on T e0, T m01, T eb, obtain the existing target Driving Torque T of electrical motor m2=T m01+ T e0-T eb.Work as T e0be greater than T ebtime, show as wanted engine operation at high-efficiency point, electrical motor is then needed to make compensation to the wheel driving torque that driving engine exports, to meet car load wheel driving torque demand, therefore, need the target Driving Torque of adjustment electrical motor in real time, electrical generator does not then need to adjust accordingly, keeps current Driving Torque constant.Now, the existing target Driving Torque of electrical motor is the existing target Driving Torque of electric device.
Step S35, controls driving engine based on T ebexport corresponding wheel driving torque, and the electrical motor of control electric device is based on T m2export correspondingly wheel driving torque.
Preferably, in order to protect drive system and electrokinetic cell, also need the impact of the restriction considering drive system and electrokinetic cell self-ability, on this basis, when working as T e0be greater than T ebtime, the target Driving Torque of the embodiment of the present invention to electrical motor has done amplitude limiting processing, and particularly, step S35 comprises:
Step S35a, works as T e0be greater than T ebtime, according to the full-throttle characteristics figure of default electrical motor, obtain the body maximum permission Driving Torque T of electrical motor max3.The full-throttle characteristics of electrical motor is with reference to the full-throttle characteristics shown in Fig. 7.
Step S35b, according to the maximum permission discharge power of electrokinetic cell, obtains the battery maximum permission Driving Torque T of electrical motor max4:
wherein, P 1for the maximum permission discharge power of electrokinetic cell, r gfor the current rotating speed of electrical generator, η gfor changes mechanical energy is the efficiency of electric energy by electrical generator, T g0for the current Driving Torque of electrical generator, η mthe electric energy conversion provided by electrokinetic cell for electrical motor is the efficiency of mechanical energy.
Step S35c, by described T max3, described T max4, described T m2in minimum value be defined as the realistic objective Driving Torque T of electrical motor m.
Step S35d, based on T e0, T m0, T m, obtain the realistic objective Driving Torque T of driving engine e2:
T E2=T M0+T E0-T M。
Step S35e, controls driving engine and exports wheel driving torque T e2; Control electrical motor and export wheel driving torque T m.In step S35e, the Driving Torque that should control electrical motor is T from current Driving Torque smooth gradual change m, and the Driving Torque controlling driving engine is T from current Driving Torque smooth gradual change e2, in smooth gradual change process, the Driving Torque of electrical motor and the Driving Torque sum of driving engine are T m0+ T e0.
Step S36, works as T e0be less than T ebtime, by the generating torque T of the current output of electrical generator g01be defined as the current Driving Torque T of electric device m0, based on T e0, T g01, T eb, obtain the existing target Driving Torque T of electrical generator g1=T g01+ T e0-T eb.Work as T e0be less than T ebtime, show as wanted engine operation at high-efficiency point, the unnecessary torque by driving engine exports then is needed to be supplied to electrical generator, be power battery charging by electrical generator, to meet the wheel driving torque demand of car load, therefore, the target Driving Torque of adjustment electrical generator is in real time needed, driving engine does not then need to adjust accordingly, keeps current Driving Torque constant.Now, the existing target Driving Torque of electrical generator is the existing target Driving Torque of electric device.
Step S37, controls driving engine based on T ebexport corresponding wheel driving torque, and the electrical generator of control electric device is based on T g1export correspondingly charge torque.
Preferably, in order to protect drive system and electrokinetic cell, also needing the impact of the restriction considering drive system and electrokinetic cell self-ability, on this basis, working as T e0be less than T ebtime, the target Driving Torque of the embodiment of the present invention to electrical generator has done amplitude limiting processing, and particularly, step S37 comprises:
Step S37a, works as T e0be less than T ebtime, according to the full-throttle characteristics figure of the electrical generator preset, obtain the body maximum permission Driving Torque T of electrical generator max5.
Step S37b, according to the maximum permission charge-discharge electric power of electrokinetic cell, obtains the battery maximum permission Driving Torque T of electrical generator max6:
wherein, P 2for the maximum permission charge power of electrokinetic cell, r gfor the current rotating speed of electrical generator, η gfor changes mechanical energy is the efficiency of electric energy by electrical generator, T m0for the current Driving Torque of electrical motor, η mthe electric energy conversion provided by electrokinetic cell for electrical motor is the efficiency of mechanical energy.
Step S37c, by T max5, T max6, T g1in minimum value be defined as the realistic objective Driving Torque T of electrical generator g.
Step S37d, based on T e0, T m0, T g, obtain the realistic objective Driving Torque T of electrical generator e3: T e3=T m0+ T e0-T g.
Step S37e, controls driving engine and exports wheel driving torque T e3; Control electrical generator and export charge torque T g.In step S37e, the Driving Torque that should control electrical generator is T from current Driving Torque smooth gradual change g, and the Driving Torque controlling driving engine is T from current Driving Torque smooth gradual change e3, in smooth gradual change process, the Driving Torque of electrical generator and the Driving Torque sum of driving engine are T m0+ T e0.
The embodiment of the present invention is by presetting the most high-efficiency point rotational speed and torque mapping library of driving engine, inquiry obtains answering Driving Torque TEb when driving engine is operated in most high-efficiency point under current rotating speed, and control driving engine and export corresponding torque based on most high-efficiency point, corresponding compensating torque is exported based on car load torque-demand by electrical motor or electrical generator, thus reach the object making driving engine as far as possible be operated in most high-efficiency point, finally improve the fuel consumption and emission low stain of hybrid vehicle.
Detailed introduction is done to the control method of hybrid vehicle of the present invention above, be described further to the device corresponding to said method below.
Please refer to Fig. 8, is the structural representation of the first embodiment of the control setup of hybrid vehicle of the present invention.This device comprises:
Acquisition module 110, for obtaining the current rotating speed r of driving engine m, driving engine former target Driving Torque T e0, electric device current Driving Torque T m0.Hybrid vehicle comprises drive system and electrokinetic cell, and drive system comprises driving engine and electric device.According to the bind mode that hybrid power drives, when hybrid vehicle possesses parallel connection type hybrid power system, electric device is specially electric-driving generation integrating machine, and when hybrid vehicle possesses series-parallel hybrid electric system, electric device comprises freestanding electrical motor and freestanding electrical generator.When electric device is specially dynamoelectric and power generation one, when electric-driving generation integrating machine is operated in electric model, electrokinetic cell provides electric power for electric-driving generation integrating machine, and when electric-driving generation integrating machine is operated in power generation mode, electric-driving generation integrating machine is power battery charging.
Enquiry module 120, for according to r m, from the most high-efficiency point rotational speed and torque mapping library of the driving engine preset, inquiry obtains the Driving Torque T of engine operation at most high-efficiency point eb.
The existing target Driving Torque acquisition module 130 of electric device, for based on T e0, T m0, T eb, obtain the existing target Driving Torque T of electric device m1: T m1=T m0+ T e0-T eb.
Processing module 140, for according to T eb, control driving engine and export corresponding torque, and according to T m1, control electric device and export correspondingly torque.
The embodiment of the present invention is by presetting the most high-efficiency point rotational speed and torque mapping library of driving engine, inquiry obtains answering Driving Torque TEb when driving engine is operated in most high-efficiency point under current rotating speed, and control driving engine and export corresponding torque based on most high-efficiency point, corresponding compensating torque is exported based on car load torque-demand by electric-driving generation integrating machine, thus reach the object making driving engine as far as possible be operated in most high-efficiency point, finally improve the fuel consumption and emission low stain of hybrid vehicle.
Please refer to Fig. 9, is the structural representation of the second embodiment of the control setup of hybrid vehicle of the present invention.This hybrid electric vehicle is parallel hybrid vehicle.The control setup 200 of hybrid vehicle comprises:
Acquisition module 210, for obtaining the current rotating speed r of driving engine m, driving engine former target Driving Torque T e0, electric device current Driving Torque T m0.When electric device is specially electric-driving generation integrating machine, when electric-driving generation integrating machine is operated in electric model, electrokinetic cell provides electric power for electric-driving generation integrating machine, and when electric-driving generation integrating machine is operated in power generation mode, electric-driving generation integrating machine is power battery charging.
Enquiry module 220, for according to r m, from the most high-efficiency point rotational speed and torque mapping library of the driving engine preset, inquiry obtains the Driving Torque T of engine operation at most high-efficiency point eb.Concerning driving engine, the efficiency of driving engine has very large relation with its rotating speed, torque, in actual mechanical process, can according to engine speed, torque, by the torque curve (motor characteristic curve figure specifically shown in Figure 2) of high-efficiency point most under its each rotating speed of test calibration, thus finally obtain the most high-efficiency point rotational speed and torque mapping library of driving engine.
The existing target Driving Torque acquisition module 230 of electric device, for based on T e0, T m0, T eb, obtain the existing target Driving Torque T of electric device m1: T m1=T m0+ T e0-T eb.
Processing module 240, for according to T eb, control driving engine and export corresponding torque, and according to T m1, control electric device and export correspondingly torque.Processing module 240 specifically comprises: maximum power acquiring unit 241, T max1acquiring unit 242, T max2acquiring unit 243, T mEacquiring unit 244, T e1acquiring unit 245 and torque output control unit 246.
Maximum power acquiring unit 241, for obtaining the maximum permission charge-discharge electric power of electrokinetic cell.
T max1acquiring unit 242, for the maximum permission charge-discharge electric power according to electrokinetic cell, obtains the battery maximum permission Driving Torque T of electric-driving generation integrating machine max1.T max1acquiring unit 142 is specifically for judging T m1whether be greater than 0; When judged result is for being, show that electric-driving generation integrating machine is in electric model, electrokinetic cell is that electric-driving generation integrating machine is powered, now, and T max1value should be the electronic torque value of maximum permission of electric-driving generation integrating machine; When judged result is no, show that electric-driving generation integrating machine is in power generation mode, electric-driving generation integrating machine is power battery charging, now, and T max1value should be the current maximum permission generating torque value of electric-driving generation integrating machine.Wherein, the maximum permission charge-discharge electric power of electrokinetic cell comprises battery maximum permission discharge power and maximum permission charge power.The current maximum permission generating torque of electric-driving generation integrating machine is: 9550 × η 1the Current mechanical rotating speed of × electrokinetic cell maximum permission charge power ÷ electric-driving generation integrating machine, wherein, η 1for changes mechanical energy is the efficiency of electric energy by electric-driving generation integrating machine.The electronic torque of maximum permission of electric-driving generation integrating machine is: 9550 × η 2the Current mechanical rotating speed of × battery maximum permission discharge power ÷ electric-driving generation integrating machine, wherein, η 2the electric energy conversion provided by electrokinetic cell for electric-driving generation integrating machine is the efficiency of mechanical energy.
T max2acquiring unit 243, according to the electric-driving generation integrating machine full-throttle characteristics figure preset, obtains the body maximum permission Driving Torque T of described electric-driving generation integrating machine max2.
T mEacquiring unit 244, for by T max1, T max2, T m1in minimum value be defined as the realistic objective Driving Torque T of electric-driving generation integrating machine mE.
T e1acquiring unit 245, for based on T e0, T m0, T e1, obtain the realistic objective Driving Torque T of driving engine e1: T e1=T m0+ T e0-T mE.
Torque output control unit 246, for controlling electric-driving generation integrating machine Driving Torque T mE, and control engine output torque T e1.Torque output control unit 246 is specifically for controlling the Driving Torque of described electric-driving generation integrating machine from T m1smooth gradual change is T mE, and the Driving Torque controlling driving engine is T from current Driving Torque smooth gradual change e1, in smooth gradual change process, the Driving Torque of electric-driving generation integrating machine and the Driving Torque sum of driving engine are T m0+ T e0.
The embodiment of the present invention is by presetting the most high-efficiency point rotational speed and torque mapping library of driving engine, and inquiry obtains answering Driving Torque T when driving engine is operated in most high-efficiency point under current rotating speed eband control driving engine and export corresponding torque based on most high-efficiency point, corresponding compensating torque is exported based on car load torque-demand by electric-driving generation integrating machine, thus reach the object making driving engine as far as possible be operated in most high-efficiency point, finally improve the fuel consumption and emission low stain of hybrid vehicle.In addition; when making the efficient district of engine operation; the embodiment of the present invention also takes into full account the ability of electric-driving generation integrating machine and electrokinetic cell; in implementation process, amplitude limit is carried out to the Driving Torque of electric-driving generation integrating machine; again according to the realistic objective Driving Torque of car load Driving Torque demand determination driving engine, thus protect electrokinetic cell and electric-driving generation integrating machine fully.
Please refer to Figure 10, is the structural representation of the 3rd embodiment of the control setup of hybrid vehicle of the present invention.This hybrid electric vehicle is the hybrid vehicle of series parallel type.The control setup 300 of hybrid vehicle comprises: the existing target Driving Torque acquisition module 360 of acquisition module 310, enquiry module 320, comparison module 330, first determination module 340, second determination module 350, electric device and processing module 370.
Acquisition module 310, for obtaining the current rotating speed r of driving engine m, driving engine former target Driving Torque T e0, electric device current Driving Torque T m0.Hybrid vehicle comprises drive system and electrokinetic cell, and drive system comprises driving engine and electric device.When hybrid vehicle possesses series-parallel hybrid electric system, electric device comprises freestanding electrical motor and freestanding electrical generator.Electric device comprises freestanding electrical motor and electrical generator, and electrokinetic cell is used for for motor, and electrical generator is used for for power battery charging.
Enquiry module 320, for according to r m, from the most high-efficiency point rotational speed and torque mapping library of the driving engine preset, inquiry obtains the Driving Torque T of engine operation at most high-efficiency point eb.
Comparison module 330, for comparing T e0with T ebsize.
First determination module 340, for working as T e0be greater than T ebtime, by the current Driving Torque T of electric device m01be defined as the driving torque T of the current output of electrical motor m0.
Second determination module 350, for working as T e0be less than T ebtime, by the generating torque T of the current output of electrical generator g01be defined as the current Driving Torque T of electric device m0.
The existing target Driving Torque acquisition module 360 of electric device is specifically for working as T e0be greater than T ebtime, based on T e0, T eb, the T that determines of the first determination module 340 m01, obtain the existing target Driving Torque T of electrical motor m2=T m0+ T e0-T eb, the existing target Driving Torque of electrical motor is the existing target Driving Torque of electric device; Work as T e0be less than T ebtime, based on T e0, T eb, the T that determines of the second determination module g01, obtain the existing target Driving Torque T of electrical generator g1=T g01+ T e0-T eb, the existing target Driving Torque of electrical generator is the existing target Driving Torque of electric device.
Processing module 370, comprises the first processing unit 371 and the second processing unit 372.
First processing unit 371, for working as T e0be greater than T ebtime, control driving engine based on T ebexport corresponding wheel driving torque, and the electrical motor of control electric device is based on T m2export correspondingly wheel driving torque.
Preferably, the first processing unit 371 specifically comprises:
T max3obtain subelement 371a, for working as T e0be greater than T ebtime, according to the full-throttle characteristics figure of default electrical motor, obtain the body maximum permission Driving Torque T of electrical motor max3.
T max4obtain subelement 371b, for the maximum permission charge-discharge electric power according to electrokinetic cell, obtain the battery maximum permission Driving Torque T of electrical motor max4.
T mobtain subelement 371c, for by T max3, T max4, T m2in minimum value be defined as the realistic objective Driving Torque T of electrical motor m.
T e2obtain subelement 371d, for based on T e0, T m0, T m, obtain the realistic objective Driving Torque T of driving engine e2: T e2=T m0+ T e0-T m.
First torque exports and controls subelement 371e, and the wheel driving torque exported for controlling driving engine is T e2; The wheel driving torque controlling electrical motor output is T m.In actual implementation and operation process, the Driving Torque that the first torque output control subelement 371e should control electrical motor is T from current Driving Torque smooth gradual change m, and the Driving Torque controlling driving engine is T from current Driving Torque smooth gradual change e2, in smooth gradual change process, the Driving Torque of electrical motor and the Driving Torque sum of driving engine are T m0+ T e0.
Second processing unit 372, for working as T e0be less than T ebtime, control driving engine based on T ebexport corresponding wheel driving torque, and the electrical generator of control electric device is based on T g1export correspondingly charge torque.
Preferably, the second processing unit 372 specifically comprises:
T max5obtain subelement 372a, for working as T e0be less than T ebtime, according to the full-throttle characteristics figure of the electrical generator preset, obtain the body maximum permission Driving Torque T of electrical generator max5.
T max6obtain subelement 372b, for the maximum permission charge-discharge electric power according to electrokinetic cell, obtain the battery maximum permission Driving Torque T of electrical generator max6.
T gobtain subelement 372c, for by T max5, T max6, T g1in minimum value be defined as the realistic objective Driving Torque T of electrical generator g.
T e3obtain subelement 372d, for based on T e0, T m0, T g, obtain the realistic objective Driving Torque T of electrical generator e3: T e3=T m0+ T e0-T g.
Second torque exports and controls subelement 372e, and the wheel driving torque exported for controlling driving engine is T e3, the charge torque controlling the output of described electrical generator is T g.In actual implementation and operation process, the Driving Torque that the second torque output control subelement 372e should control electrical generator is T from current Driving Torque smooth gradual change g, and the Driving Torque controlling driving engine is T from current Driving Torque smooth gradual change e3, in smooth gradual change process, the Driving Torque of electrical generator and the Driving Torque sum of driving engine are T m0+ T e0.
The embodiment of the present invention is by presetting the most high-efficiency point rotational speed and torque mapping library of driving engine, and inquiry obtains answering Driving Torque T when driving engine is operated in most high-efficiency point under current rotating speed eband control driving engine and export corresponding torque based on most high-efficiency point, corresponding compensating torque is exported based on car load torque-demand by electrical motor or electrical generator, thus reach the object making driving engine as far as possible be operated in most high-efficiency point, finally improve the fuel consumption and emission low stain of hybrid vehicle.
One of ordinary skill in the art will appreciate that all or part of flow process realized in above-described embodiment method, that the hardware that can carry out instruction relevant by computer program has come, described program can be stored in a computer read/write memory medium, this program, when performing, can comprise the flow process of the embodiment as above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-OnlyMemory, ROM) or random store-memory body (RandomAccessMemory, RAM) etc.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.

Claims (14)

1. a control method for hybrid vehicle, described hybrid vehicle comprises drive system and electrokinetic cell, and described drive system comprises driving engine and electric device, it is characterized in that, comprising:
Obtain the current rotating speed r of described driving engine m, described driving engine former target Driving Torque T e0, described electric device current Driving Torque T m0;
According to described r m, from the most high-efficiency point rotational speed and torque mapping library of the driving engine preset, inquiry obtains the Driving Torque T of described engine operation at most high-efficiency point eb;
Based on described T e0, described T m0, described T eb, obtain the existing target Driving Torque T of described electric device m1: T m1=T m0+ T e0-T eb;
According to described T eb, control described driving engine and export corresponding torque, and according to described T m1, control described electric device and export correspondingly torque.
2. control method as claimed in claim 1, it is characterized in that, described electric device is specially electric-driving generation integrating machine, when described electric-driving generation integrating machine is operated in electric model, described electrokinetic cell provides electric power for described electric-driving generation integrating machine, when described electric-driving generation integrating machine is operated in power generation mode, described electric-driving generation integrating machine is described power battery charging;
Described " according to described T eb, control described driving engine and export corresponding torque, and according to described T m1, control described electric device and export correspondingly torque " step, comprising:
Obtain the maximum permission charge-discharge electric power of described electrokinetic cell;
According to the maximum permission charge-discharge electric power of described electrokinetic cell, obtain the battery maximum permission Driving Torque T of described electric-driving generation integrating machine max1;
According to the electric-driving generation integrating machine full-throttle characteristics figure preset, obtain the body maximum permission Driving Torque T of described electric-driving generation integrating machine max2;
By described T max1, described T max2, described T m1in minimum value be defined as the realistic objective Driving Torque T of described electric-driving generation integrating machine mE;
Based on described T e0, described T m0, described T e1, obtain the realistic objective Driving Torque T of described driving engine e1: T e1=T m0+ T e0-T mE;
Control described electric-driving generation integrating machine Driving Torque T mE, and control described engine output torque T e1.
3. control method as claimed in claim 2, is characterized in that, describedly " controls described electric-driving generation integrating machine Driving Torque T mE, and control described engine output torque T e1" step, be specially:
Control the Driving Torque of described electric-driving generation integrating machine from described T m1smooth gradual change is described T mE, and the Driving Torque controlling described driving engine is described T from current Driving Torque smooth gradual change e1, in described smooth gradual change process, the Driving Torque of described electric-driving generation integrating machine and the Driving Torque sum of described driving engine are T m0+ T e0.
4. control method as claimed in claim 1, it is characterized in that, described electric device comprises freestanding electrical motor and electrical generator, and described electrokinetic cell is used for for described motor, and described electrical generator is used for for described power battery charging;
Described " according to described r m, from the most high-efficiency point rotational speed and torque mapping library of the driving engine preset, inquiry obtains the Driving Torque T of described engine operation at most high-efficiency point eb" step after, also comprise:
More described T e0with described T ebsize;
As described T e0be greater than described T ebtime, by the current Driving Torque T of described electric device m01be defined as the driving torque T of the current output of described electrical motor m0, described " based on described T e0, described T m0, described T eb, obtain the existing target Driving Torque T of described electric device m1: T m1=T m0+ T e0-T eb" step, comprising:
Based on described T e0, described T m01, described T eb, obtain the existing target Driving Torque T of described electrical motor m2=T m01+ T e0-T eb, the existing target Driving Torque of described electrical motor is the existing target Driving Torque of described electric device;
As described T e0be less than described T ebtime, by the generating torque T of the current output of described electrical generator g01be defined as the current Driving Torque T of described electric device m0, described " based on described T e0, described T m0, described T eb, obtain the existing target Driving Torque T of described electric device m1: T m1=T m0+ T e0-T eb" step, be specially:
Based on described T e0, described T g01, described T eb, obtain the existing target Driving Torque T of described electrical generator g1=T g01+ T e0-T eb, the existing target Driving Torque of described electrical generator is the existing target Driving Torque of described electric device.
5. control method as claimed in claim 4, is characterized in that, described " according to described T eb, control described driving engine and export corresponding torque, and according to described T m1, control described electric device and export correspondingly torque " step, be specially:
As described T e0be greater than described T ebtime, control described driving engine based on described T ebexport corresponding wheel driving torque, and the described electrical motor controlling described electric device is based on described T m2export correspondingly wheel driving torque;
As described T e0be less than described T ebtime, control described driving engine based on described T ebexport corresponding wheel driving torque, and the described electrical generator controlling described electric device is based on described T g1export correspondingly charge torque.
6. control method as claimed in claim 5, is characterized in that, described " as described T e0be greater than described T ebtime, control described driving engine based on described T ebexport corresponding wheel driving torque, and control described electrical motor based on described T m2export correspondingly wheel driving torque " step, comprising:
As described T e0be greater than described T ebtime, according to the full-throttle characteristics figure of default electrical motor, obtain the body maximum permission Driving Torque T of described electrical motor max3;
According to the maximum permission charge-discharge electric power of described electrokinetic cell, obtain the battery maximum permission Driving Torque T of described electrical motor max4;
By described T max3, described T max4, described T m2in minimum value be defined as the realistic objective Driving Torque T of described electrical motor m;
Based on described T e0, described T m0, described T m, obtain the realistic objective Driving Torque T of described driving engine e2: T e2=T m0+ T e0-T m;
The wheel driving torque controlling the output of described driving engine is described T e2; The wheel driving torque controlling the output of described electrical motor is described T m.
7. control method as claimed in claim 5, is characterized in that, described " as described T e0be less than described T ebtime, the described driving engine of described control is based on described T ebexport corresponding wheel driving torque, and control described electrical generator based on described T g1export correspondingly charge torque " step, comprising:
As described T e0be less than described T ebtime, according to the full-throttle characteristics figure of the electrical generator preset, obtain the body maximum permission Driving Torque T of described electrical generator max5;
According to the maximum permission charge-discharge electric power of described electrokinetic cell, obtain the battery maximum permission Driving Torque T of described electrical generator max6;
By described T max5, described T max6, described T g1in minimum value be defined as the realistic objective Driving Torque T of described electrical generator g;
Based on described T e0, described T m0, described T g, obtain the realistic objective Driving Torque T of described electrical generator e3: T e3=T m0+ T e0-T g;
The wheel driving torque controlling the output of described driving engine is described T e3; The charge torque controlling the output of described electrical generator is described T g.
8. a control setup for hybrid vehicle, described hybrid vehicle comprises drive system and electrokinetic cell, and described drive system comprises driving engine and electric device, it is characterized in that, comprising:
Acquisition module, for obtaining the current rotating speed r of described driving engine m, described driving engine former target Driving Torque T e0, described electric device current Driving Torque T m0;
Enquiry module, for according to described r m, from the most high-efficiency point rotational speed and torque mapping library of the driving engine preset, inquiry obtains the Driving Torque T of described engine operation at most high-efficiency point eb;
The existing target Driving Torque acquisition module of electric device, for based on described T e0, described T m0, described T eb, obtain the existing target Driving Torque T of described electric device m1: T m1=T m0+ T e0-T eb;
Processing module, for according to described T eb, control described driving engine and export corresponding torque, and according to described T m1, control described electric device and export correspondingly torque.
9. control setup as claimed in claim 8, it is characterized in that, described electric device is specially electric-driving generation integrating machine, when described electric-driving generation integrating machine is operated in electric model, described electrokinetic cell provides electric power for described electric-driving generation integrating machine, when described electric-driving generation integrating machine is operated in power generation mode, described electric-driving generation integrating machine is described power battery charging;
Described processing module comprises:
Maximum power acquiring unit, for obtaining the maximum permission charge-discharge electric power of described electrokinetic cell;
T max1acquiring unit, for the maximum permission charge-discharge electric power according to described electrokinetic cell, obtains the battery maximum permission Driving Torque T of described electric-driving generation integrating machine max1;
T max2acquiring unit, according to the electric-driving generation integrating machine full-throttle characteristics figure preset, obtains the body maximum permission Driving Torque T of described electric-driving generation integrating machine max2;
T mEacquiring unit, for by described T max1, described T max2, described T m1in minimum value be defined as the realistic objective Driving Torque T of described electric-driving generation integrating machine mE;
T e1acquiring unit, for based on described T e0, described T m0, described T e1, obtain the realistic objective Driving Torque T of described driving engine e1: T e1=T m0+ T e0-T mE;
Torque output control unit, for controlling described electric-driving generation integrating machine Driving Torque T mE, and control described engine output torque T e1.
10. control setup as claimed in claim 9, it is characterized in that, described first torque output control unit is specifically for controlling the Driving Torque of described electric-driving generation integrating machine from described T m1smooth gradual change is described T mE, and the Driving Torque controlling described driving engine is described T from current Driving Torque smooth gradual change e1, in described smooth gradual change process, the Driving Torque of described electric-driving generation integrating machine and the Driving Torque sum of described driving engine are T m0+ T e0.
11. control setups as claimed in claim 8, it is characterized in that, described electric device comprises freestanding electrical motor and electrical generator, and described electrokinetic cell is used for for described motor, and described electrical generator is used for for described power battery charging;
Described control setup also comprises:
Comparison module, for more described T e0with described T ebsize;
First determination module, for working as described T e0be greater than described T ebtime, by the current Driving Torque T of described electric device m01be defined as the driving torque T of the current output of described electrical motor m0; The existing target Driving Torque acquisition module of described electric device is specifically for based on described T e0, described T m01, described T eb, obtain the existing target Driving Torque T of described electrical motor m2=T m0+ T e0-T eb, the existing target Driving Torque of described electrical motor is the existing target Driving Torque of described electric device;
Second determination module, for working as described T e0be less than described T ebtime, by the generating torque T of the current output of described electrical generator g01be defined as the current Driving Torque T of described electric device m0; The existing target Driving Torque acquisition module of described electric device is specifically for based on described T e0, described T g01, described T eb, obtain the existing target Driving Torque T of described electrical generator g1=T g01+ T e0-T eb, the existing target Driving Torque of described electrical generator is the existing target Driving Torque of described electric device.
12. control setups as claimed in claim 11, it is characterized in that, described processing module comprises:
First processing unit, for working as described T e0be greater than described T ebtime, control described driving engine based on described T ebexport corresponding wheel driving torque, and the described electrical motor controlling described electric device is based on described T m2export correspondingly wheel driving torque;
Second processing unit, for working as described T e0be less than described T ebtime, control described driving engine based on described T ebexport corresponding wheel driving torque, and the described electrical generator controlling described electric device is based on described T g1export correspondingly charge torque.
13. control setups as claimed in claim 12, it is characterized in that, described first processing unit comprises:
T max3obtain subelement, for working as described T e0be greater than described T ebtime, according to the full-throttle characteristics figure of default electrical motor, obtain the body maximum permission Driving Torque T of described electrical motor max3;
T max4obtain subelement, for the maximum permission charge-discharge electric power according to described electrokinetic cell, obtain the battery maximum permission Driving Torque T of described electrical motor max4;
T mobtain subelement, for by described T max3, described T max4, described T m2in minimum value be defined as the realistic objective Driving Torque T of described electrical motor m;
T e2obtain subelement, for based on described T e0, described T m0, described T m, obtain the realistic objective Driving Torque T of described driving engine e2: T e2=T m0+ T e0-T m;
First torque exports and controls subelement, and the wheel driving torque exported for controlling described driving engine is described T e2; The wheel driving torque controlling the output of described electrical motor is described T m.
14. control setups as claimed in claim 12, it is characterized in that, described second processing unit comprises:
T max5obtain subelement, for working as described T e0be less than described T ebtime, according to the full-throttle characteristics figure of the electrical generator preset, obtain the body maximum permission Driving Torque T of described electrical generator max5;
T max6obtain subelement, for the maximum permission charge-discharge electric power according to described electrokinetic cell, obtain the battery maximum permission Driving Torque T of described electrical generator max6;
T gobtain subelement, for by described T max5, described T max6, described T g1in minimum value be defined as the realistic objective Driving Torque T of described electrical generator g;
T e3obtain subelement, for based on described T e0, described T m0, described T g, obtain the realistic objective Driving Torque T of described electrical generator e3: T e3=T m0+ T e0-T g;
Second torque exports and controls subelement, and the wheel driving torque exported for controlling described driving engine is described T e3, the charge torque controlling the output of described electrical generator is described T g.
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108162968A (en) * 2016-12-05 2018-06-15 郑州宇通客车股份有限公司 Power output control method and device, power back off control method and device
CN108657160A (en) * 2017-03-31 2018-10-16 长城汽车股份有限公司 A kind of hybrid power dynamic control method and device
CN109421692A (en) * 2017-08-23 2019-03-05 郑州宇通客车股份有限公司 A kind of control method and its system of automobile engine using new energy resources
CN112140901A (en) * 2019-06-28 2020-12-29 北京车和家信息技术有限公司 Torque control method and device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005002989A (en) * 2003-05-21 2005-01-06 Toyota Motor Corp Power output device, its control method, and automobile
CN101186210A (en) * 2007-12-29 2008-05-28 奇瑞汽车有限公司 Method for controlling motor assistant drive of mixed power vehicle
CN101386303A (en) * 2007-09-12 2009-03-18 奇瑞汽车股份有限公司 Motor drive control method for hybrid power automobile
CN101574969A (en) * 2009-05-12 2009-11-11 奇瑞汽车股份有限公司 Control method of operating point of hybrid electric vehicle engine
CN102963354A (en) * 2012-11-26 2013-03-13 北京智行鸿远汽车技术有限公司 Torque processing method of hybrid vehicle
CN102975713A (en) * 2012-12-14 2013-03-20 清华大学 Hybrid electric vehicle control method based on model prediction control

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005002989A (en) * 2003-05-21 2005-01-06 Toyota Motor Corp Power output device, its control method, and automobile
CN101386303A (en) * 2007-09-12 2009-03-18 奇瑞汽车股份有限公司 Motor drive control method for hybrid power automobile
CN101186210A (en) * 2007-12-29 2008-05-28 奇瑞汽车有限公司 Method for controlling motor assistant drive of mixed power vehicle
CN101574969A (en) * 2009-05-12 2009-11-11 奇瑞汽车股份有限公司 Control method of operating point of hybrid electric vehicle engine
CN102963354A (en) * 2012-11-26 2013-03-13 北京智行鸿远汽车技术有限公司 Torque processing method of hybrid vehicle
CN102975713A (en) * 2012-12-14 2013-03-20 清华大学 Hybrid electric vehicle control method based on model prediction control

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108162968A (en) * 2016-12-05 2018-06-15 郑州宇通客车股份有限公司 Power output control method and device, power back off control method and device
CN108657160A (en) * 2017-03-31 2018-10-16 长城汽车股份有限公司 A kind of hybrid power dynamic control method and device
CN108657160B (en) * 2017-03-31 2020-10-27 蜂巢能源科技有限公司 Hybrid dynamic control method and device
CN109421692A (en) * 2017-08-23 2019-03-05 郑州宇通客车股份有限公司 A kind of control method and its system of automobile engine using new energy resources
CN109421692B (en) * 2017-08-23 2020-10-02 郑州宇通客车股份有限公司 Control method and system for new energy automobile engine
CN112140901A (en) * 2019-06-28 2020-12-29 北京车和家信息技术有限公司 Torque control method and device

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