CN104228823A - Hybrid vehicle and control method and system thereof - Google Patents
Hybrid vehicle and control method and system thereof Download PDFInfo
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- CN104228823A CN104228823A CN201310242007.XA CN201310242007A CN104228823A CN 104228823 A CN104228823 A CN 104228823A CN 201310242007 A CN201310242007 A CN 201310242007A CN 104228823 A CN104228823 A CN 104228823A
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/40—Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
- B60W30/18—Propelling the vehicle
- B60W30/182—Selecting between different operative modes, e.g. comfort and performance modes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/24—Energy storage means
- B60W2510/242—Energy storage means for electrical energy
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/10—Longitudinal speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2530/00—Input parameters relating to vehicle conditions or values, not covered by groups B60W2510/00 or B60W2520/00
- B60W2530/10—Weight
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/08—Electric propulsion units
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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
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
-
- 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
Abstract
The invention discloses a hybrid vehicle and a control method and system thereof. The control method includes after the hybrid vehicle is powered on, detecting the SOC value of a power battery of the hybrid vehicle, the speed of the hybrid vehicle and the load of the hybrid vehicle; starting the corresponded operating mode of the hybrid vehicle according to the SOC value of the power battery, the speed and the load. The operating mode includes an EV1 mode, an EV2 mode, a serial connecting mode, a parallel-connection charging mode, a single engine mode, a motor assisting mode, an all drive mode and a brake feedback mode. According to the hybrid vehicle and the control method and system thereof, the power performance of the vehicle during high-speed driving can be guaranteed, the fuel economy of the vehicle during low-speed driving can be guaranteed, and energy can be saved.
Description
Technical field
The present invention relates to technical field of vehicle, particularly a kind of motor vehicle driven by mixed power, and a kind of control method of motor vehicle driven by mixed power and control system.
Background technology
Along with the shortage of the social energy, new energy vehicle receives the concern of more and more people, and wherein, motor vehicle driven by mixed power is developed rapidly.In prior art, motor vehicle driven by mixed power mainly comprises pure tandem drive scheme and pure parallel drive scheme.Wherein, pure tandem drive scheme mainly controls the conversion of mode of operation according to the SOC value of vehicle, and pure parallel drive scheme is mainly through judging that the speed of a motor vehicle controls the conversion of mode of operation.But vehicle adopts pure tandem drive scheme, when vehicle is run at high speed, easily cause dynamic property not enough, in addition, vehicle adopts pure parallel drive scheme, and when low vehicle speeds, economy is poor.Therefore, the coupling being difficult to simultaneously realize tandem drive scheme and parallel drive scheme on motor vehicle driven by mixed power uses, and then it is all good to be difficult to realize the fuel economy of vehicle under various operating mode.
Summary of the invention
Object of the present invention is intended to solve one of above-mentioned technical matters at least to a certain extent.
For this reason, one object of the present invention is the control method proposing a kind of motor vehicle driven by mixed power, and this control method can ensure dynamic property during high vehicle speeds, can ensure again fuel economy during low vehicle speeds.
Another object of the present invention is the control system proposing a kind of motor vehicle driven by mixed power.
Another object of the present invention is to propose a kind of motor vehicle driven by mixed power with above-mentioned control system.
For achieving the above object, the embodiment of one aspect of the present invention proposes a kind of control method of motor vehicle driven by mixed power, this control method comprises the following steps: after described motor vehicle driven by mixed power powers on, and detects the SOC value of the electrokinetic cell of described motor vehicle driven by mixed power, the speed of a motor vehicle of described motor vehicle driven by mixed power and the load of described motor vehicle driven by mixed power; Control described motor vehicle driven by mixed power according to the SOC value of described electrokinetic cell, the described speed of a motor vehicle and described load and enter corresponding mode of operation, wherein, described mode of operation comprises EV1 pattern, EV2 pattern, series model, charged in parallel pattern, pure engine mode, motor assistant mode, full drive pattern and feedback braking pattern.
According to the control method of the motor vehicle driven by mixed power of the embodiment of the present invention, control motor vehicle driven by mixed power according to the SOC value of electrokinetic cell, the speed of a motor vehicle and load and enter corresponding mode of operation, motor vehicle driven by mixed power can be made to have better fuel economy and tractive performance, and then can economize energy.In addition, the driving engine controlling motor vehicle driven by mixed power works in its efficient work region all the time, can improve the fuel economy of motor vehicle driven by mixed power.
In some embodiments of the invention, preset vehicle speed is less than or equal in the speed of a motor vehicle of described motor vehicle driven by mixed power, and described load is less than the first load threshold, and when the SOC value of described electrokinetic cell is greater than the first power threshold, controls described motor vehicle driven by mixed power and enter described EV1 pattern; Be less than described first load threshold in described load, and when the SOC value of described electrokinetic cell is less than described first power threshold, controls described motor vehicle driven by mixed power and switch to described series model from described EV1 mode activated; Be more than or equal to described first load threshold in described load and be less than the second load threshold, and the SOC value of described electrokinetic cell is when being greater than described first power threshold, control described motor vehicle driven by mixed power and enter described EV2 pattern, wherein, described second load threshold is greater than described first load threshold.
In addition, in some embodiments of the invention, when below meeting during arbitrary condition, control described vehicle and enter described charged in parallel pattern: the speed of a motor vehicle of described motor vehicle driven by mixed power is greater than described preset vehicle speed, and described load is more than or equal to the 3rd load threshold is less than the 4th load threshold; Or described load is more than or equal to described first load threshold and is less than described second load threshold, and the SOC value of described electrokinetic cell is less than described first power threshold; Wherein, described 4th load threshold is greater than described second load threshold, and described second load threshold is greater than described first load threshold, and described first load threshold is greater than described 3rd load threshold.In some embodiments of the invention, described preset vehicle speed is greater than in the speed of a motor vehicle of described motor vehicle driven by mixed power, and described load is more than or equal to described 4th load threshold when being less than the 5th load threshold, control described motor vehicle driven by mixed power and enter described pure engine mode, wherein, described 5th load threshold is greater than described 4th load threshold; Described preset vehicle speed is greater than in the speed of a motor vehicle of described motor vehicle driven by mixed power, and described load is more than or equal to described 5th load threshold when being less than the 6th load threshold, control described motor vehicle driven by mixed power and enter described motor assistant mode, wherein, described 6th load threshold is greater than described 5th load threshold; When described load is greater than described 6th load threshold, controls described motor vehicle driven by mixed power and enter full drive pattern.
In one embodiment of the invention, equal zero in described load, and when the speed of a motor vehicle of described motor vehicle driven by mixed power is greater than zero, controls described motor vehicle driven by mixed power and enter described feedback braking pattern.
For achieving the above object, the present invention's embodiment on the other hand proposes a kind of control system of motor vehicle driven by mixed power, and this control system comprises: electrokinetic cell; Battery manager, described battery manager detects the SOC value of described electrokinetic cell; Driving engine; Electrical generator; Drive motor; Detecting device, described detecting device detects the size of the speed of a motor vehicle of described motor vehicle driven by mixed power and the load of described motor vehicle driven by mixed power; Controller, described controller controls to make described motor vehicle driven by mixed power enter corresponding mode of operation to described driving engine, described electrical generator and described drive motor according to the size of the load of the SOC value of described electrokinetic cell, the speed of a motor vehicle of described motor vehicle driven by mixed power and described motor vehicle driven by mixed power; Wherein, described mode of operation comprises EV1 pattern, EV2 pattern, series model, charged in parallel pattern, pure engine mode, motor assistant mode, full drive pattern and feedback braking pattern.
According to the control system of the motor vehicle driven by mixed power of the embodiment of the present invention, controller controls motor vehicle driven by mixed power according to the SOC value of electrokinetic cell, the speed of a motor vehicle and load and enters corresponding mode of operation, motor vehicle driven by mixed power can be made to have better fuel economy and tractive performance, and then can economize energy.In addition, the driving engine that controller controls motor vehicle driven by mixed power works in its efficient work region all the time, can improve the fuel economy of motor vehicle driven by mixed power.
The working process of the control system of above-mentioned motor vehicle driven by mixed power comprises following, in some embodiments of the invention, described controller is less than or equal to preset vehicle speed in the speed of a motor vehicle of described motor vehicle driven by mixed power, and described load is less than the first load threshold, and the SOC value of described electrokinetic cell is when being greater than the first power threshold, control the electric discharge of described electrokinetic cell and control described drive motor work to carry out work to make described motor vehicle driven by mixed power with described EV1 pattern; Described controller is less than described first load threshold in described load, and the SOC value of described electrokinetic cell is when being less than described first power threshold, controlling described engine starting to drive described generator operation is described power battery charging, and controls described drive motor work and carry out work to make described motor vehicle driven by mixed power switch to described series model from described EV1 mode activated; Described controller is more than or equal to described first load threshold in described load and is less than the second load threshold, and the SOC value of described electrokinetic cell is when being greater than described first power threshold, controls described electrical generator and described drive motor and work to make described motor vehicle driven by mixed power enter described EV2 pattern simultaneously and carry out work; Wherein, described second load threshold is greater than described first load threshold.
In addition, in some embodiments of the invention, be greater than described preset vehicle speed in the speed of a motor vehicle of described motor vehicle driven by mixed power, and described load is more than or equal to the 3rd load threshold when being less than the 4th load threshold; Or be more than or equal to described first load threshold in described load and be less than described second load threshold, and when the SOC value of described electrokinetic cell is less than described first power threshold; Described controller controls described engine starting and drives described generator operation to enter charged in parallel pattern to make described vehicle, described controller controls described electrical generator is simultaneously described power battery charging: wherein, described 4th load threshold is greater than the second load threshold, described second load threshold is greater than described first load threshold, and described first load threshold is greater than described 3rd load threshold.
In some embodiments of the invention, described preset vehicle speed is greater than in the speed of a motor vehicle of described motor vehicle driven by mixed power, and described load is more than or equal to described 4th load threshold when being less than the 5th load threshold, described controller controls described engine starting and enters described pure engine mode to make described motor vehicle driven by mixed power, wherein, described 5th load threshold is greater than described 4th load threshold; Described preset vehicle speed is greater than in the speed of a motor vehicle of described vehicle, and described load is more than or equal to described 5th load threshold when being less than the 6th load threshold, described controller controls described engine starting, control the electric discharge of described electrokinetic cell simultaneously and control described drive motor work to enter described motor assistant mode to make described motor vehicle driven by mixed power, wherein, described 6th load threshold is greater than described 5th load threshold; When described load is greater than described 6th load threshold, described controller controls described electrokinetic cell and discharges, and controls engine starting, controls described electrical generator and described drive motor all works to make described motor vehicle driven by mixed power enter described full drive pattern.
In one embodiment of the invention, equal zero in described load, and the speed of a motor vehicle of described motor vehicle driven by mixed power is when being greater than zero, described controller controls described drive motor and the braking energy of described vehicle is fed back to described electrokinetic cell and enter described feedback braking pattern to make described motor vehicle driven by mixed power.
For achieving the above object, another aspect of the invention embodiment proposes a kind of motor vehicle driven by mixed power, and this motor vehicle driven by mixed power comprises the control system of the motor vehicle driven by mixed power of above-described embodiment.
According to the motor vehicle driven by mixed power of the embodiment of the present invention, by adopting the control system of above-mentioned motor vehicle driven by mixed power, the demand of motor vehicle driven by mixed power to fuel economy and dynamic property can be met simultaneously, can economize energy.
The aspect that the present invention adds and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
The present invention above-mentioned and/or additional aspect and advantage will become obvious and easy understand from the following description of the accompanying drawings of embodiments, wherein:
Fig. 1 is the diagram of circuit of the control method of motor vehicle driven by mixed power according to the embodiment of the present invention;
Fig. 2 is the switching schematic diagram of each mode of operation of the control method of motor vehicle driven by mixed power according to a specific embodiment of the present invention.
Fig. 3 is the EV1 Schema control schematic diagram of the control method of motor vehicle driven by mixed power according to an embodiment of the invention;
Fig. 4 is that the series model of the control method of motor vehicle driven by mixed power according to another embodiment of the invention controls schematic diagram;
Fig. 5 is the EV2 Schema control schematic diagram of the control method of motor vehicle driven by mixed power according to still a further embodiment;
Fig. 6 is the charged in parallel Schema control schematic diagram of the control method of motor vehicle driven by mixed power according to an embodiment of the invention;
Fig. 7 is that the pure engine mode of the control method of motor vehicle driven by mixed power according to another embodiment of the invention controls schematic diagram;
Fig. 8 is that the motor assistant mode of the control method of motor vehicle driven by mixed power according to still a further embodiment controls schematic diagram;
Fig. 9 is that the full drive pattern of the control method of motor vehicle driven by mixed power according to an embodiment of the invention controls schematic diagram;
Figure 10 is the feedback braking Schema control schematic diagram of the control method of motor vehicle driven by mixed power according to another embodiment of the invention;
Figure 11 is the control system schematic diagram of the motor vehicle driven by mixed power according to the embodiment of the present invention; And
Figure 12 is the schematic diagram of the motor vehicle driven by mixed power according to the embodiment of the present invention.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
Disclosing hereafter provides many different embodiments or example is used for realizing different structure of the present invention.Of the present invention open in order to simplify, hereinafter the parts of specific examples and setting are described.Certainly, they are only example, and object does not lie in restriction the present invention.In addition, the present invention can in different example repeat reference numerals and/or letter.This repetition is to simplify and clearly object, itself does not indicate the relation between discussed various embodiment and/or setting.In addition, the various specific technique that the invention provides and the example of material, but those of ordinary skill in the art can recognize the property of can be applicable to of other techniques and/or the use of other materials.In addition, fisrt feature described below second feature it " on " structure can comprise the embodiment that the first and second features are formed as directly contact, also can comprise other feature and be formed in embodiment between the first and second features, such first and second features may not be direct contacts.
In describing the invention, it should be noted that, unless otherwise prescribed and limit, term " installation ", " being connected ", " connection " should be interpreted broadly, such as, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be directly be connected, also indirectly can be connected by intermediary, for the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be.
Describe with reference to the accompanying drawings according to the motor vehicle driven by mixed power of the embodiment of the present invention and control method thereof and control system.
As shown in Figure 1, the control method of the motor vehicle driven by mixed power of the embodiment of the present invention comprises the following steps:
S101, after motor vehicle driven by mixed power powers on, detects the load of the SOC value of electrokinetic cell of motor vehicle driven by mixed power, the speed of a motor vehicle of motor vehicle driven by mixed power and motor vehicle driven by mixed power.
S102, controls motor vehicle driven by mixed power according to the SOC value of electrokinetic cell, the speed of a motor vehicle and load and enters corresponding mode of operation.
After motor vehicle driven by mixed power powers on, after detecting by step S101 the load obtaining the SOC value of electrokinetic cell of motor vehicle driven by mixed power, the speed of a motor vehicle of motor vehicle driven by mixed power and motor vehicle driven by mixed power, control motor vehicle driven by mixed power according to the SOC value of electrokinetic cell, the speed of a motor vehicle and load and enter corresponding mode of operation.Wherein, mode of operation comprises EV1 (Electric Vehicle1, electric vehicle mode 1) pattern, EV2 (Electric Vehicle2, electric vehicle mode 2) pattern, series model, charged in parallel pattern, pure engine mode, motor assistant mode, full drive pattern and feedback braking pattern.The switching process of each mode of operation is controlled in control method the following detailed description of the motor vehicle driven by mixed power of the embodiment of the present invention.
In one embodiment of the invention, be less than or equal to preset vehicle speed in the speed of a motor vehicle of motor vehicle driven by mixed power, and load is less than the first load threshold, and when the SOC value of electrokinetic cell is greater than the first power threshold, controls motor vehicle driven by mixed power and enter EV1 pattern.Particularly, as shown in Figure 2, be the conversion and control sketch of each mode of operation of a specific embodiment of the present invention.Wherein, in figure, curve C is the change curve of the electricity of the electrokinetic cell of motor vehicle driven by mixed power.M is the balance SOC value of electrokinetic cell, and n is the lower limit that the first power threshold can be understood as the SOC value of electrokinetic cell, and u is the conversion speed of a motor vehicle that preset vehicle speed can be understood as motor vehicle driven by mixed power, and preset vehicle speed value can be preset as required.Namely say, when the speed of a motor vehicle v of motor vehicle driven by mixed power is less than preset vehicle speed u, such as, when motor vehicle driven by mixed power starts, and when the load load of motor vehicle driven by mixed power is less than the first load threshold s, first load threshold s can be the propulsive effort that provided by drive motor and drivable load, simultaneously when the electricity of the electrokinetic cell of motor vehicle driven by mixed power is greater than n, control motor vehicle driven by mixed power and enter EV1 pattern, in one particular embodiment of the present invention, as shown in Figure 3, namely converting direct current to alternating current by electrokinetic cell by inverter is that drive motor is powered, drive motor by change speed gear box and main reduction gear speed governing to drive vehicle wheel rotation, thus drive motor vehicle driven by mixed power to carry out work by drive motor, namely motor vehicle driven by mixed power work is driven separately by drive motor.In driving process, the electricity SOC value of electrokinetic cell declines.
In another embodiment of the present invention, be less than the first load threshold in load, and when the SOC value of electrokinetic cell is less than or equal to the first power threshold, controls motor vehicle driven by mixed power and switch to series model from EV1 pattern.Particularly, hybrid-power battery is with EV1 work pattern, and namely electrokinetic cell is that drive motor is powered, and drive motor drives motor vehicle driven by mixed power to carry out work, and the electricity SOC value of electrokinetic cell declines.As shown in Figure 2, the first load threshold s is less than at load load, and the SOC value of electrokinetic cell is when dropping to the first power threshold and SOC lower limit n, then control motor vehicle driven by mixed power and switch to series model from EV1 pattern, such as t7 ~ t8 time period, motor vehicle driven by mixed power is in EV1 mode of operation, equals the first power threshold n in the SOC value of t8 moment electrokinetic cell, then control motor vehicle driven by mixed power and switch to tandem working pattern from EV1 mode of operation.In one particular embodiment of the present invention, as shown in Figure 4, namely engine starting is controlled, driven by engine electrical generator rotates, and is that electrokinetic cell charges by inverter, and the electricity SOC value of electrokinetic cell increases, simultaneously, electrokinetic cell is that drive motor is powered, and by change speed gear box and main reduction gear speed governing to drive wheel, thus drive motor drives motor vehicle driven by mixed power to carry out work.Now the speed of a motor vehicle of motor vehicle driven by mixed power starts more and more faster.
In yet another embodiment of the present invention, be more than or equal to the first load threshold in load and be less than the second load threshold, and when the SOC value of electrokinetic cell is greater than the first power threshold, controlling motor vehicle driven by mixed power with EV2 work pattern, wherein, the second load threshold is greater than the first load threshold.Particularly, as shown in Figure 2, the load load of motor vehicle driven by mixed power can be found out by the slope of each mode of operation section of each time period, the slope of motor vehicle driven by mixed power when slope during EV2 mode of operation as t1 ~ t2 time period is the EV1 mode of operation than t7 ~ t8 time period is large, then can think EV2 pattern time duty ratio EV1 pattern time load large.When the load of motor vehicle driven by mixed power increases, such as be greater than the first load threshold s at load load and be less than the second load threshold w, and the electricity SOC value of electrokinetic cell is when being greater than the SOC lower limit of electrokinetic cell, controls motor vehicle driven by mixed power and enter EV2 pattern and carry out work.As shown in Figure 5, namely control electrical generator and drive motor drive motor vehicle driven by mixed power to carry out work simultaneously, and electrokinetic cell is drive motor and generator powered by inverter, and the SOC value of electrokinetic cell declines.
In one embodiment of the invention, when meeting following arbitrary condition, control vehicle enters charged in parallel pattern: the speed of a motor vehicle of motor vehicle driven by mixed power is greater than preset vehicle speed, and load is more than or equal to the 3rd load threshold is less than the 4th load threshold; Or load is more than or equal to the first load threshold and is less than the second load threshold, and the SOC value of electrokinetic cell is less than the first power threshold.Wherein, the 4th load threshold is greater than the second load threshold, and the second load threshold is greater than the first load threshold, and the first load threshold is greater than the 3rd load threshold.Particularly, the load load of motor vehicle driven by mixed power be more than or equal to the first load threshold s be less than the second load threshold w time, if the SOC value of electrokinetic cell is greater than lower limit n, controls motor vehicle driven by mixed power and carry out work with EV2, if the SOC value of electrokinetic cell declines be less than lower limit n, control motor vehicle driven by mixed power and enter charged in parallel pattern, as shown in Figure 6, namely control engine drive motor vehicle driven by mixed power and carry out work, but pure engine-driven utilization ratio is lower, so improve the operation point of driving engine, make engine operation in efficient region, the power that driving engine sends is beyond the driving demand of motor vehicle driven by mixed power, so controlling driven by engine generator operation is that electrokinetic cell is powered, now drive motor does not work.Or as shown in Figure 2, the speed of a motor vehicle of motor vehicle driven by mixed power improves, preset vehicle speed u is greater than in the speed of a motor vehicle of motor vehicle driven by mixed power, and load is more than or equal to the 3rd load threshold a when being less than the 4th load threshold b, such as, in Fig. 2 t2 ~ t3 time period, controls motor vehicle driven by mixed power and enter charged in parallel work pattern.
In one embodiment of the invention, be greater than preset vehicle speed in the speed of a motor vehicle of motor vehicle driven by mixed power, and load is more than or equal to the 4th load threshold when being less than the 5th load threshold, controls motor vehicle driven by mixed power and enter pure engine mode, wherein, the 5th load threshold is greater than the 4th load threshold.Particularly, t9 ~ t10 time period as shown in Figure 2, along with the speed of a motor vehicle of motor vehicle driven by mixed power increases, preset vehicle speed u is greater than in the speed of a motor vehicle, and the load of motor vehicle driven by mixed power also increases, as load load be more than or equal to the 4th load threshold b be less than the 5th load threshold c time, then control motor vehicle driven by mixed power with pure engine mode function operation.As shown in Figure 7, namely the load load of motor vehicle driven by mixed power higher be such as more than or equal to b be less than c time, the speed of a motor vehicle is greater than u, now the driving demand torque of motor vehicle driven by mixed power and rotating speed are just in time in the efficient work region of driving engine, then controlling driving engine drives separately motor vehicle driven by mixed power to carry out work, and now electrical generator and drive motor all do not work.
In addition, in another embodiment of the present invention, preset vehicle speed is greater than in the speed of a motor vehicle of motor vehicle driven by mixed power, and load is more than or equal to the 5th load threshold when being less than the 6th load threshold, control motor vehicle driven by mixed power and enter motor assistant mode, wherein, the 6th load threshold is greater than the 5th load threshold.Particularly, t10 ~ t11 time period as shown in Figure 2, when the speed of motor vehicle driven by mixed power continues to increase, the load of motor vehicle driven by mixed power continues to increase, such as load load is more than or equal to the 5th load threshold c when being less than the 6th load threshold d, the driving demand torque of motor vehicle driven by mixed power and the speed of a motor vehicle are beyond the efficient work region of driving engine, now then control motor vehicle driven by mixed power to work with motor assistant mode, as shown in Figure 8, namely control driving engine and continue to operate in its efficient work region, electrokinetic cell is that drive motor is powered simultaneously, drive motor works, the SOC value of electrokinetic cell declines, namely drive motor vehicle driven by mixed power to carry out work by driving engine and drive motor simultaneously.
In yet another embodiment of the present invention, when load is more than or equal to the 6th load threshold, controls motor vehicle driven by mixed power and enter full drive pattern.Particularly, t4 ~ t5 time period as shown in Figure 2, when the load load of motor vehicle driven by mixed power is such as greater than the 6th load threshold d very greatly, such as when anxious acceleration or climbing, the demand torque of motor vehicle driven by mixed power is very large, then control motor vehicle driven by mixed power and carry out work with full drive pattern, as shown in Figure 9, namely control driving engine, electrical generator and drive motor all to work to reach better tractive performance, to drive motor vehicle driven by mixed power to carry out work, the SOC value of electrokinetic cell declines.
In one embodiment of the invention, equal zero in load, and when the speed of a motor vehicle of motor vehicle driven by mixed power is greater than zero, controls motor vehicle driven by mixed power and enter feedback braking pattern.Particularly, t3 ~ t4 as shown in Figure 2 or t5 ~ t6 time period or t11 ~ t12 time period, the load load of motor vehicle driven by mixed power is zero, and the speed of a motor vehicle of motor vehicle driven by mixed power is greater than zero, such as, when motor vehicle driven by mixed power slows down or brake, control motor vehicle driven by mixed power and enter feedback braking work pattern, as shown in Figure 10, namely drive motor in the mode of charging by the Brake energy recovery of motor vehicle driven by mixed power to electrokinetic cell, namely speech charges for electrokinetic cell, the SOC value rising of electrokinetic cell.
It should be noted that, in an embodiment of the present invention, charged in parallel pattern, pure engine mode, motor assistant mode, full drive pattern can be referred to as paralleling model.When motor vehicle driven by mixed power meets the condition of paralleling model and series model work simultaneously, control motor vehicle driven by mixed power and enter series model work, because the operation point ratio of driving engine is easier to control when series model, and engine operation is on high efficiency point, can be very fast by the SOC value charge value equilibrium value m of electrokinetic cell.In addition, by the parameters of adjustment preset vehicle speed u, load load, and SOC lower limit n, better fuel-economy performance and tractive performance can be obtained.
In sum, according to the control method of the motor vehicle driven by mixed power of the embodiment of the present invention, control motor vehicle driven by mixed power according to the SOC value of electrokinetic cell, the speed of a motor vehicle and load and enter corresponding mode of operation, adopt series model and paralleling model to coordinate to control, motor vehicle driven by mixed power can be made to have better fuel economy and tractive performance, and then can economize energy.In addition, the driving engine controlling motor vehicle driven by mixed power works in its efficient work region all the time, can improve the fuel economy of motor vehicle driven by mixed power.
The control system of the motor vehicle driven by mixed power according to the embodiment of the present invention is described with reference to the accompanying drawings.
As shown in figure 11, the control system of the motor vehicle driven by mixed power of the embodiment of the present invention comprises: electrokinetic cell 1101, battery manager (not indicating in figure), driving engine 1102, electrical generator 1103, drive motor 1104, detecting device (not indicating in figure) and controller (not indicating in figure).Wherein, battery manager detects the SOC value of described electrokinetic cell; Detecting device detects the size of the speed of a motor vehicle of motor vehicle driven by mixed power and the load of motor vehicle driven by mixed power.Controller controls to make motor vehicle driven by mixed power enter corresponding mode of operation to driving engine 1102, electrical generator 1103 and drive motor 1104 according to the size of the load of the SOC value of electrokinetic cell, the speed of a motor vehicle of motor vehicle driven by mixed power and motor vehicle driven by mixed power.Wherein, mode of operation comprises EV1 pattern, EV2 pattern, series model, charged in parallel pattern, pure engine mode, motor assistant mode, full drive pattern and feedback braking pattern.As shown in figure 11, the change speed gear box of motor vehicle driven by mixed power, main reduction gear, wheel and inverter is also comprised.
In an embodiment of the present invention, charged in parallel pattern, pure engine mode, motor assistant mode and full drive pattern can be referred to as paralleling model.The working process of the control system of the motor vehicle driven by mixed power of the embodiment of the present invention will be described in detail below.
In one embodiment of the invention, controller is less than or equal to preset vehicle speed in the speed of a motor vehicle of motor vehicle driven by mixed power, and load is less than the first load threshold, and the SOC value of electrokinetic cell 1101 is when being greater than the first power threshold, controls electrokinetic cell 1101 and discharge and control drive motor 1104 and work to make motor vehicle driven by mixed power carry out work with EV1 pattern.Particularly, when the speed of a motor vehicle v of the motor vehicle driven by mixed power of detection arrangement monitors is less than preset vehicle speed u, such as, when motor vehicle driven by mixed power starts, and when the load load detecting motor vehicle driven by mixed power is less than the first load threshold s, first load threshold s can be the propulsive effort that provided by drive motor and drivable load, simultaneously when the electricity of the electrokinetic cell of motor vehicle driven by mixed power is greater than n, controller controls motor vehicle driven by mixed power and enters EV1 pattern, in one particular embodiment of the present invention, as shown in Figure 3, the first clutch C1 that controller controls motor vehicle driven by mixed power is in free state, second clutch C2 opens, controller controls electrokinetic cell 1101 and powers for drive motor 1104, controlling drive motor 1104 drives motor vehicle driven by mixed power to carry out work, and to drive vehicle wheel rotation after carrying out speed governing by change speed gear box and main reduction gear, namely say that controller controls drive motor and drives separately motor vehicle driven by mixed power work.In driving process, the electricity SOC value of electrokinetic cell 1101 declines.
In another embodiment of the present invention, controller is less than the first load threshold in load, and the SOC value of electrokinetic cell 1101 is when being less than the first power threshold, control driving engine 1102 to start and work as electrokinetic cell 1101 charges with drive electrical generators 1103, and control drive motor 1104 and work to make motor vehicle driven by mixed power switch to series model from EV1 mode activated and carry out work.Particularly, the first load threshold s is less than at the load load of the motor vehicle driven by mixed power of detecting device detection, and the SOC value of electrokinetic cell 1101 that battery manager detects is when dropping to the first power threshold and SOC lower limit n, then controller controls motor vehicle driven by mixed power and switches to series model from EV1 pattern, as shown in Figure 4, the first clutch C1 that controller controls motor vehicle driven by mixed power closes, second clutch C2 opens, namely controller control driving engine 1102 starts, driving engine 1102 drive electrical generators 1103 carries out rotation and charges for electrokinetic cell 1101, the electricity SOC value of electrokinetic cell 1101 increases, simultaneously, controller controls electrokinetic cell 1101 and powers for drive motor 1104, drive motor 1104 drives motor vehicle driven by mixed power to carry out work.Now the speed of a motor vehicle of motor vehicle driven by mixed power starts more and more faster.
In yet another embodiment of the present invention, controller is greater than the first load threshold in load and is less than the second load threshold, and the SOC value of electrokinetic cell 1101 is when being greater than the first power threshold, control electrical generator 1103 and drive motor 1104 works to make motor vehicle driven by mixed power EV2 pattern carry out work simultaneously.Wherein, the second load threshold is greater than the first load threshold.Particularly, the load load detecting motor vehicle driven by mixed power when detecting device increases, such as be greater than the first load threshold s at load load and be less than the second load threshold w, and the electricity SOC value of electrokinetic cell 1101 that battery manager detects is when being greater than the SOC lower limit n of electrokinetic cell 1101, controller controls motor vehicle driven by mixed power and enters EV2 pattern and carry out work.As shown in Figure 5, the first clutch C1 that controller controls motor vehicle driven by mixed power opens, second clutch C2 closes, namely controller control electrical generator 1103 and drive motor 1104 drive motor vehicle driven by mixed power to carry out operation power battery 1101 is simultaneously that drive motor 1104 is powered with electrical generator 1103, and the SOC value of electrokinetic cell 1101 declines.
In one embodiment of the invention, be greater than preset vehicle speed in the speed of a motor vehicle of motor vehicle driven by mixed power, and load is more than or equal to the 3rd load threshold when being less than the 4th load threshold; Or, be more than or equal to the first load threshold in load and be less than the second load threshold, and when the SOC value of electrokinetic cell 1101 is less than the first power threshold; Controller controls driving engine 1102 startup and drive electrical generators 1102 works to make vehicle enter charged in parallel pattern, controls electrical generator 1103 charge for electrokinetic cell 1101 with Time Controller.Wherein, the 4th load threshold is greater than the second load threshold, and the second load threshold is greater than the first load threshold, and the first load threshold is greater than the 3rd load threshold.Particularly, the load load of motor vehicle driven by mixed power that detecting device detects be more than or equal to the first load threshold s be less than the second load threshold w time, if the SOC value of the electrokinetic cell 1101 that battery manager detects is greater than lower limit n, controller controls motor vehicle driven by mixed power and carries out work with EV2, if the SOC value of electrokinetic cell 1101 declines be less than lower limit n, controller controls motor vehicle driven by mixed power and enters charged in parallel pattern, as shown in Figure 6, the first clutch C1 that controller controls motor vehicle driven by mixed power closes, second clutch C2 closes, controller controls driving engine 1102 and drives motor vehicle driven by mixed power to carry out work, but the utilization ratio that pure driving engine 1102 drives is lower, so improve the operation point of driving engine 1102, driving engine 1102 is made to work in efficient region, the power that driving engine 1102 sends is beyond the driving demand of motor vehicle driven by mixed power, power so controller controls the work of driving engine 1102 drive electrical generators 1103 for electrokinetic cell 1101, now drive motor 1104 does not work.Or, as shown in Figure 2, the speed of a motor vehicle of motor vehicle driven by mixed power improves, preset vehicle speed u is greater than in the speed of a motor vehicle of motor vehicle driven by mixed power, and load load is more than or equal to the 3rd load threshold a when being less than the 4th load threshold b, such as, in Fig. 2 t2 ~ t3 time period, controller controls motor vehicle driven by mixed power and enters charged in parallel work pattern.
In one embodiment of the invention, preset vehicle speed is greater than in the speed of a motor vehicle of motor vehicle driven by mixed power, and load is more than or equal to the 4th load threshold when being less than the 5th load threshold, controller controls engine starting and enters pure engine mode to make motor vehicle driven by mixed power, wherein, the 5th load threshold is greater than the 4th load threshold.Particularly, the speed of a motor vehicle detected at detecting device is greater than preset vehicle speed u, and the load load of motor vehicle driven by mixed power also increases, as load load be more than or equal to the 4th load threshold b be less than the 5th load threshold c time, then controller control motor vehicle driven by mixed power with pure engine mode function operation.As shown in Figure 7, the load load of motor vehicle driven by mixed power higher be such as more than or equal to b be less than c time, the speed of a motor vehicle is greater than u, the first clutch C1 that controller controls motor vehicle driven by mixed power closes, control second clutch C2 to close, now the driving demand torque of motor vehicle driven by mixed power and rotating speed are just in time in the efficient work region of driving engine 1102, then controller controls driving engine 1102 and drives separately motor vehicle driven by mixed power to carry out work, and now electrical generator 1103 and drive motor 1104 all do not work.
In another embodiment of the present invention, preset vehicle speed is greater than in the speed of a motor vehicle of vehicle, and load is more than or equal to the 5th load threshold when being less than the 6th load threshold, controller controls driving engine 1102 and starts, control electrokinetic cell 1101 discharges and controls drive motor 1104 and works to make motor vehicle driven by mixed power enter motor assistant mode simultaneously, wherein, the 6th load threshold is greater than the 5th load threshold.Particularly, when the speed of motor vehicle driven by mixed power continues to increase, the load load of motor vehicle driven by mixed power continues to increase, such as load load is more than or equal to the 5th load threshold c when being less than the 6th load threshold d, the driving demand torque of motor vehicle driven by mixed power and the speed of a motor vehicle are beyond the efficient work region of driving engine 1102, now, controller controls motor vehicle driven by mixed power and works with motor assistant mode, as shown in Figure 8, first clutch C1 and the second clutch C2 of controller control motor vehicle driven by mixed power close, namely controller controls driving engine 1102 and continues to operate in its efficient work region, control electrokinetic cell 1101 with Time Controller to power for drive motor 1104, drive motor 1104 works, the SOC value of electrokinetic cell 1101 declines, namely controller controls to drive motor vehicle driven by mixed power to carry out work by driving engine 1102 and drive motor 1104 simultaneously.
In yet another embodiment of the present invention, when load is greater than the 6th load threshold, controller controls electrokinetic cell and discharges, and control engine starting, control electrical generator and drive motor all work to make motor vehicle driven by mixed power enter full drive pattern.Particularly, when the load load of motor vehicle driven by mixed power is such as greater than the 6th load threshold d very greatly, such as when anxious acceleration or climbing, the demand torque of motor vehicle driven by mixed power is very large, then controller control motor vehicle driven by mixed power carries out work with full drive pattern, as shown in Figure 9, first clutch C1 and the second clutch C2 of controller control motor vehicle driven by mixed power close, namely controller controls driving engine 1102, electrical generator 1103 and drive motor 1104 all work to reach better tractive performance, work is carried out to drive motor vehicle driven by mixed power, the SOC value of electrokinetic cell 1101 declines.
In one embodiment of the invention, equal zero in load, and when the speed of a motor vehicle of motor vehicle driven by mixed power is greater than zero, the braking energy of vehicle is fed back to electrokinetic cell 1101 and enters feedback braking pattern to make motor vehicle driven by mixed power by controller control drive motor 1104.Particularly, the load load of the motor vehicle driven by mixed power that detecting device detects is zero, and the speed of a motor vehicle of motor vehicle driven by mixed power is greater than zero, such as when motor vehicle driven by mixed power slows down or brake, controller controls motor vehicle driven by mixed power and enters feedback braking work pattern, as shown in Figure 10, the first clutch C1 that controller controls motor vehicle driven by mixed power is in free state, control second clutch C2 to open, namely controller control drive motor 1104 with charging mode by the Brake energy recovery of motor vehicle driven by mixed power to electrokinetic cell 1101, namely speech charges for electrokinetic cell 1101, the SOC value of electrokinetic cell 1101 raises.
In sum, according to the control system of the hybrid-power battery of the embodiment of the present invention, controller controls motor vehicle driven by mixed power according to the SOC value of electrokinetic cell, the speed of a motor vehicle and load and enters corresponding mode of operation, series model and paralleling model are coordinated control by controller, motor vehicle driven by mixed power can be made to have better fuel economy and tractive performance, and then can economize energy.In addition, the driving engine that controller controls motor vehicle driven by mixed power works in its efficient work region all the time, can improve the fuel economy of motor vehicle driven by mixed power.
The motor vehicle driven by mixed power of embodiment is according to a third aspect of the present invention described with reference to the accompanying drawings.
As shown in figure 12, the motor vehicle driven by mixed power 1201 of the embodiment of the present invention comprises the control system 1202 of the motor vehicle driven by mixed power of above-described embodiment.
According to the motor vehicle driven by mixed power of the embodiment of the present invention, by adopting the control system of above-mentioned motor vehicle driven by mixed power, the demand of motor vehicle driven by mixed power to fuel economy and dynamic property can be met simultaneously, can economize energy.
Describe and can be understood in diagram of circuit or in this any process otherwise described or method, represent and comprise one or more for realizing the module of the code of the executable instruction of the step of specific logical function or process, fragment or part, and the scope of the preferred embodiment of the present invention comprises other realization, wherein can not according to order that is shown or that discuss, comprise according to involved function by the mode while of basic or by contrary order, carry out n-back test, this should understand by embodiments of the invention person of ordinary skill in the field.
In flow charts represent or in this logic otherwise described and/or step, such as, the sequencing list of the executable instruction for realizing logic function can be considered to, may be embodied in any computer-readable medium, for instruction execution system, device or equipment (as computer based system, comprise the system of treater or other can from instruction execution system, device or equipment fetch instruction and perform the system of instruction) use, or to use in conjunction with these instruction execution systems, device or equipment.With regard to this specification sheets, " computer-readable medium " can be anyly can to comprise, store, communicate, propagate or transmission procedure for instruction execution system, device or equipment or the device that uses in conjunction with these instruction execution systems, device or equipment.The example more specifically (non-exhaustive list) of computer-readable medium comprises following: the electrical connection section (electronics package) with one or more wiring, portable computer diskette box (magnetic device), random-access memory (ram), read-only memory (ROM) (ROM), erasablely edit read-only memory (ROM) (EPROM or flash memory), fiber device, and portable optic disk read-only memory (ROM) (CDROM).In addition, computer-readable medium can be even paper or other suitable media that can print described program thereon, because can such as by carrying out optical scanning to paper or other media, then carry out editing, decipher or carry out process with other suitable methods if desired and electronically obtain described program, be then stored in computer storage.
Should be appreciated that each several part of the present invention can realize with hardware, software, firmware or their combination.In the above-described embodiment, multiple step or method can with to store in memory and the software performed by suitable instruction execution system or firmware realize.Such as, if realized with hardware, the same in another embodiment, can realize by any one in following technology well known in the art or their combination: the discrete logic with the logic gates for realizing logic function to data-signal, there is the special IC of suitable combinatory logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.
Those skilled in the art are appreciated that realizing all or part of step that above-described embodiment method carries is that the hardware that can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, this program perform time, step comprising embodiment of the method one or a combination set of.
In the description of this specification sheets, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments without departing from the principles and spirit of the present invention, scope of the present invention is by claims and equivalency thereof.
Claims (11)
1. a control method for motor vehicle driven by mixed power, is characterized in that, comprises the following steps:
After described motor vehicle driven by mixed power powers on, detect the SOC value of the electrokinetic cell of described motor vehicle driven by mixed power, the speed of a motor vehicle of described motor vehicle driven by mixed power and the load of described motor vehicle driven by mixed power; And
Control described motor vehicle driven by mixed power according to the SOC value of described electrokinetic cell, the described speed of a motor vehicle and described load and enter corresponding mode of operation, wherein, described mode of operation comprises EV1 pattern, EV2 pattern, series model, charged in parallel pattern, pure engine mode, motor assistant mode, full drive pattern and feedback braking pattern.
2. the control method of motor vehicle driven by mixed power as claimed in claim 1, is characterized in that,
Be less than or equal to preset vehicle speed in the speed of a motor vehicle of described motor vehicle driven by mixed power, and described load is less than the first load threshold, and when the SOC value of described electrokinetic cell is greater than the first power threshold, controls described motor vehicle driven by mixed power and enter described EV1 pattern;
Be less than described first load threshold in described load, and when the SOC value of described electrokinetic cell is less than or equal to described first power threshold, controls described motor vehicle driven by mixed power and switch to described series model from described EV1 pattern;
Be more than or equal to described first load threshold in described load and be less than the second load threshold, and the SOC value of described electrokinetic cell is when being greater than described first power threshold, control described motor vehicle driven by mixed power and enter described EV2 pattern, wherein, described second load threshold is greater than described first load threshold.
3. the control method of motor vehicle driven by mixed power as claimed in claim 2, is characterized in that, when below meeting during arbitrary condition, controls described motor vehicle driven by mixed power and enters described charged in parallel pattern:
The speed of a motor vehicle of described motor vehicle driven by mixed power is greater than described preset vehicle speed, and described load is more than or equal to the 3rd load threshold is less than the 4th load threshold; Or
Described load is more than or equal to described first load threshold and is less than described second load threshold, and the SOC value of described electrokinetic cell is less than described first power threshold;
Wherein, described 4th load threshold is greater than described second load threshold, and described second load threshold is greater than described first load threshold, and described first load threshold is greater than described 3rd load threshold.
4. the control method of motor vehicle driven by mixed power as claimed in claim 3, is characterized in that,
Described preset vehicle speed is greater than in the speed of a motor vehicle of described motor vehicle driven by mixed power, and described load is more than or equal to described 4th load threshold when being less than the 5th load threshold, control described motor vehicle driven by mixed power and enter described pure engine mode, wherein, described 5th load threshold is greater than described 4th load threshold;
Described preset vehicle speed is greater than in the speed of a motor vehicle of described motor vehicle driven by mixed power, and described load is more than or equal to described 5th load threshold when being less than the 6th load threshold, control described motor vehicle driven by mixed power and enter described motor assistant mode, wherein, described 6th load threshold is greater than described 5th load threshold;
When described load is greater than described 6th load threshold, controls described motor vehicle driven by mixed power and enter full drive pattern.
5. the control method of motor vehicle driven by mixed power as claimed in claim 1, is characterized in that,
Equal zero in described load, and when the speed of a motor vehicle of described motor vehicle driven by mixed power is greater than zero, controls described motor vehicle driven by mixed power and enter described feedback braking pattern.
6. a control system for motor vehicle driven by mixed power, is characterized in that, comprising:
Electrokinetic cell;
Battery manager, described battery manager detects the SOC value of described electrokinetic cell;
Driving engine;
Electrical generator;
Drive motor;
Detecting device, described detecting device detects the size of the speed of a motor vehicle of described motor vehicle driven by mixed power and the load of described motor vehicle driven by mixed power;
Controller, described controller controls to make described motor vehicle driven by mixed power enter corresponding mode of operation to described driving engine, described electrical generator and described drive motor according to the size of the load of the SOC value of described electrokinetic cell, the speed of a motor vehicle of described motor vehicle driven by mixed power and described motor vehicle driven by mixed power, wherein, described mode of operation comprises EV1 pattern, EV2 pattern, series model, charged in parallel pattern, pure engine mode, motor assistant mode, full drive pattern and feedback braking pattern.
7. the control system of motor vehicle driven by mixed power as claimed in claim 6, is characterized in that,
Described controller is less than or equal to preset vehicle speed in the speed of a motor vehicle of described motor vehicle driven by mixed power, and described load is less than the first load threshold, and the SOC value of described electrokinetic cell is when being greater than the first power threshold, control the electric discharge of described electrokinetic cell and control described drive motor work to carry out work to make described motor vehicle driven by mixed power with described EV1 pattern;
Described controller is less than described first load threshold in described load, and the SOC value of described electrokinetic cell is when being less than described first power threshold, controlling described engine starting to drive described generator operation is described power battery charging, and controls described drive motor work and carry out work to make described motor vehicle driven by mixed power switch to described series model from described EV1 mode activated; And
Described controller is more than or equal to described first load threshold in described load and is less than the second load threshold, and the SOC value of described electrokinetic cell is when being greater than described first power threshold, control described electrical generator and described drive motor works to make described motor vehicle driven by mixed power enter EV2 pattern simultaneously;
Wherein, described second load threshold is greater than described first load threshold.
8. the control system of motor vehicle driven by mixed power as claimed in claim 7, is characterized in that,
Be greater than described preset vehicle speed in the speed of a motor vehicle of described motor vehicle driven by mixed power, and described load is more than or equal to the 3rd load threshold when being less than the 4th load threshold; Or
Be more than or equal to described first load threshold in described load and be less than described second load threshold, and when the SOC value of described electrokinetic cell is less than described first power threshold;
Described controller controls described engine starting and drives described generator operation to enter charged in parallel pattern to make described vehicle, and described controller controls described electrical generator is simultaneously described power battery charging;
Wherein, described 4th load threshold is greater than the second load threshold, and described second load threshold is greater than described first load threshold, and described first load threshold is greater than described 3rd load threshold.
9. the control system of motor vehicle driven by mixed power as claimed in claim 8, is characterized in that,
Described preset vehicle speed is greater than in the speed of a motor vehicle of described motor vehicle driven by mixed power, and described load is more than or equal to described 4th load threshold when being less than the 5th load threshold, described controller controls described engine starting and enters described pure engine mode to make described motor vehicle driven by mixed power, wherein, described 5th load threshold is greater than described 4th load threshold;
Described preset vehicle speed is greater than in the speed of a motor vehicle of described vehicle, and described load is more than or equal to described 5th load threshold when being less than the 6th load threshold, described controller controls described engine starting, control the electric discharge of described electrokinetic cell simultaneously and control described drive motor work to enter described motor assistant mode to make described motor vehicle driven by mixed power, wherein, described 6th load threshold is greater than described 5th load threshold;
When described load is greater than described 6th load threshold, described controller controls described electrokinetic cell and discharges, and controls engine starting, controls described electrical generator and described drive motor all works to make described motor vehicle driven by mixed power enter described full drive pattern.
10. the control system of motor vehicle driven by mixed power as claimed in claim 6, is characterized in that,
Equal zero in described load, and when the speed of a motor vehicle of described motor vehicle driven by mixed power is greater than zero, described controller controls described drive motor and the braking energy of described vehicle is fed back to described electrokinetic cell and enter described feedback braking pattern to make described motor vehicle driven by mixed power.
11. 1 kinds of motor vehicle driven by mixed powers, is characterized in that, comprise the control system of the motor vehicle driven by mixed power described in any one of claim 6 ~ 10.
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