CN104176049A - Method and system for controlling starting of ISG (integrated starter and generator)-type series-parallel hybrid electric vehicle - Google Patents
Method and system for controlling starting of ISG (integrated starter and generator)-type series-parallel hybrid electric vehicle Download PDFInfo
- Publication number
- CN104176049A CN104176049A CN201410418001.8A CN201410418001A CN104176049A CN 104176049 A CN104176049 A CN 104176049A CN 201410418001 A CN201410418001 A CN 201410418001A CN 104176049 A CN104176049 A CN 104176049A
- Authority
- CN
- China
- Prior art keywords
- starting
- engine
- driving engine
- generating
- rotating speed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
-
- 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
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
-
- 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
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
-
- 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
- B60W2300/00—Indexing codes relating to the type of vehicle
- B60W2300/10—Buses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/06—Combustion engines, Gas turbines
- B60W2510/0638—Engine speed
-
- 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
- B60W2710/02—Clutches
- B60W2710/021—Clutch engagement state
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
- B60W2710/0616—Position of fuel or air injector
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Hybrid Electric Vehicles (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
The invention discloses a method and a system for controlling starting of an ISG (integrated starter and generator)-type series-parallel hybrid electric vehicle. A starting and power-generating all-in-one machine starting control method in the method includes starting the starting and power-generating all-in-one machine, and enabling torque of the starting and power-generating all-in-one machine to linearly increase according to a high change rate at the front stage of a starting time period and to linearly increase according to a low change rate at the rear stage of the starting time period. An engine starting control method includes controlling an oil injector of an engine to be in an oil injection stopping state from the initial time of starting, controlling a clutch to be in an engaged state, and starting to record starting time of the engine; acquiring rotating speed of the engine in real time; judging whether current rotating speed of the engine is larger than or equal to idle speed of the engine or not; if yes, judging whether the starting time of the engine is smaller than or equal to a time interval corresponding to the starting time period or not; if yes, controlling the clutch to be disengaged; judging whether the current rotating speed of the engine is larger than or equal to starting rotating speed of the engine or not after delayed time; if yes, controlling the oil injector to inject oil.
Description
Technical field
The present invention relates to the starting technique field of hybrid vehicle, relate in particular to a kind of method for starting-controlling and system of ISG type Series-Parallel HEV.
Background technology
Series-Parallel HEV is due to simple to operate, drive comfortable and economic performance outstanding, find broad application in new-energy automobile field at present, ISG type Series-Parallel HEV has been introduced starting-generating all-in-one (ISG on the basis of traditional Series-Parallel HEV, Integrated Starter and Generator), the output shaft of this starting-generating all-in-one is by the normal output shaft in conjunction with power-transfer clutch connecting engine, described starting-generating together machine has replaced starter and the electrical generator of traditional Series-Parallel HEV as auxiliary power source.
Fig. 1 shows the auxiliary power unit (APU of ISG type Series-Parallel HEV, Auxiliary Power Unit) structural representation, described auxiliary power unit comprises driving engine 3, power-transfer clutch 2 (being conventionally chosen as often in conjunction with power-transfer clutch) and starting-generating all-in-one 1, and driving engine 3 is of coupled connections by power-transfer clutch 2 with starting-generating all-in-one 1.When automobile is during in dead ship condition, auxiliary power unit is flame-out to quit work.When automobile is during in low cruise state, auxiliary power unit starts automatically according to car load dump energy and electric power demand, flexibly generating.When automobile is during in high-speed cruising state, auxiliary power unit drives according to the torque demand of Das Gaspedal reflection.In the starting process of automobile, starting-generating all-in-one 1 " counter dragging " drives driving engine 3 to turn round, in this process, can produce greater impact and wearing and tearing to power-transfer clutch 2, cause 2 service lifes of power-transfer clutch lower than needs of expected design, therefore need a kind of can suppress, weaken impact to power-transfer clutch 2 and the method for wearing and tearing badly.
In addition, the vehicle of current many public transit vehicles is elected ISG type Series-Parallel HEV as, because the traffic lights of public bus network operated by rotary motion are more, and public transit vehicle need to rely on each bus stop successively, so the auxiliary power unit of public transit vehicle is flame-out, the number of times of starting is frequent, thus except the impact to power-transfer clutch 2, wearing and tearing larger, have a strong impact on outside the service life of power-transfer clutch 2, also have influence on the normal operation of public transit vehicle, improved car load producer after service cost.
Summary of the invention
Technical matters to be solved by this invention is that in prior art, ISG type Series-Parallel HEV produces greater impact and wearing and tearing in starting process to power-transfer clutch, causes power-transfer clutch service life lower than needs of expected design.
In order to solve the problems of the technologies described above, the invention provides a kind of method for starting-controlling and system of ISG type Series-Parallel HEV, in the situation that not changing vehicle hardware configuration, realize clutch judder optimization by software, thereby reduce the impact to power-transfer clutch and wearing and tearing in starting process, and then improve the service life of power-transfer clutch.
Technical scheme of the present invention is:
A kind of method for starting-controlling of ISG type Series-Parallel HEV, described hybrid vehicle comprises starting-generating all-in-one, power-transfer clutch and driving engine, described starting-generating all-in-one connects described driving engine by described power-transfer clutch, and described control method comprises starting-generating all-in-one method for starting-controlling and engine start control method;
Described starting-generating all-in-one method for starting-controlling is: start described starting-generating all-in-one, and make the torque of described starting-generating all-in-one increase according to the first rate of change is linear at the leading portion of the cranking time section of setting, back segment in the cranking time section of setting rises according to the second rate of change is linear, and described the first rate of change is greater than described the second rate of change;
Described engine start control method comprises:
From the initial time of described cranking time section, control the fuel injector of described driving engine in stopping oil spout state, control described power-transfer clutch in bonding state, and start to record the cranking time of described driving engine;
Obtain the rotating speed of described driving engine every the sampling interval of setting;
Judge whether the current rotating speed of described driving engine is greater than or equal to the engine idle of setting;
If so, judge whether the cranking time of the described driving engine of record is less than or equal to the time gap of described cranking time section correspondence;
If so, controlling described power-transfer clutch disconnects;
After the delay time of setting, judge whether the current rotating speed of described driving engine is greater than or equal to the engine starting rotating speed of setting;
If so, control the fuel injector oil spout of described driving engine.
Preferably, the leading portion of described cranking time section is 0～0.3t
st, the back segment of described cranking time section is 0.3t
st～t
st, wherein 0 is the initial time of described cranking time section, t
stfor the time gap of described cranking time section correspondence.
Preferably, described the first rate of change is
described the second rate of change is
wherein T
minfor the driving engine pull up torque of setting.
Preferably, be 0.5s described delay time.
A kind of start control system of ISG type Series-Parallel HEV, described hybrid vehicle comprises starting-generating all-in-one, power-transfer clutch and driving engine, described starting-generating all-in-one connects described driving engine by described power-transfer clutch, and described control system comprises starting-generating all-in-one starting control module and engine starting control module;
Described starting-generating all-in-one starting control module specifically for: start described starting-generating all-in-one, and make the torque of described starting-generating all-in-one increase according to the first rate of change is linear at the leading portion of the cranking time section of setting, back segment in the cranking time section of setting rises according to the second rate of change is linear, and described the first rate of change is greater than described the second rate of change;
Described engine starting control module comprises:
Fuel injector control unit, for from the initial time of described cranking time section, controls the fuel injector of described driving engine in stopping oil spout state;
Clutch control unit, for from the initial time of described cranking time section, controls described power-transfer clutch in bonding state;
Cranking time record cell, for from the initial time of described cranking time section, starts to record the cranking time of described driving engine;
Engine speed acquiring unit, for obtaining the rotating speed of described driving engine every the sampling interval of setting;
The first judging unit, for judging whether the current rotating speed of driving engine that described engine speed acquiring unit obtains is greater than or equal to the engine idle of setting;
The second judging unit, for determining that at described the first judging unit the current rotating speed of described driving engine is greater than or equal to the engine idle of setting, judge whether the cranking time of the driving engine of described cranking time recording unit records is less than or equal to the time gap of described cranking time section correspondence; Described clutch control unit, also for determining that at described the second judging unit the cranking time of described driving engine is less than or equal to the time gap of described cranking time section correspondence, is controlled described power-transfer clutch and is disconnected;
The 3rd judging unit, for disconnecting after the delay time that described power-transfer clutch sets, judges whether the current rotating speed of driving engine that described engine speed acquiring unit obtains is greater than or equal to the engine starting rotating speed of setting;
Described fuel injector control unit, also for determining that at described the 3rd judging unit the current rotating speed of described driving engine is greater than or equal to the engine starting rotating speed of setting, controls the fuel injector oil spout of described driving engine.
Preferably, the leading portion of described cranking time section is 0～0.3t
st, the back segment of described cranking time section is 0.3t
st～t
st, wherein 0 is the initial time of described cranking time section, t
stfor the time gap of described cranking time section correspondence.
Preferably, described the first rate of change is
described the second rate of change is
wherein T
minfor the driving engine pull up torque of setting.
Preferably, be 0.5s described delay time.
Compared with prior art, the one or more embodiment in such scheme can have the following advantages or beneficial effect by tool:
The application embodiment of the present invention provides method for starting-controlling and the system of ISG type Series-Parallel HEV, on the one hand, application starting-generating all-in-one method for starting-controlling carries out segmentation control to the torque of starting-generating all-in-one, has guaranteed stressed smooth-going in starting process of driving engine in effectively reducing the engine starting time; On the other hand, application engine method for starting-controlling, reaches engine idle in the cranking time section of regulation at the rotating speed of driving engine, and no-load starting power generation all-in-one machine, has ensured that the cranking time of driving engine is short, has improved the tractive performance of vehicle; Then reach after the starting speed of regulation until starting-generating all-in-one complete discharge and driving engine, just allow the fuel injector oil spout of driving engine, avoid the compression ignite moment moment of torsion that driving engine is just caused by starting in the time that rotating speed is lower to suddenly change, the obvious situation of clutch judder, thereby reduce the torque ripple of driving engine, ensured that the moment of torsion output of driving engine in starting process is smooth-going.The output of the stressed smooth-going and moment of torsion of driving engine in starting process is smooth-going, can reduce to a great extent the vibration of power-transfer clutch, reduces impact to power-transfer clutch and the wearing and tearing of power-transfer clutch, the service life of effectively having improved power-transfer clutch.
Other features and advantages of the present invention will be set forth in the following description, and partly from specification sheets, become apparent, or understand by implementing the present invention.Object of the present invention and other advantages can be realized and be obtained by specifically noted structure in specification sheets, claims and accompanying drawing.
Brief description of the drawings
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification sheets,, is not construed as limiting the invention jointly for explaining the present invention with embodiments of the invention.In the accompanying drawings:
Fig. 1 shows the structural representation of the auxiliary power unit of ISG type Series-Parallel HEV;
Fig. 2 shows the clutch judder curve synoptic diagram before the method for starting-controlling described in the application embodiment of the present invention;
Fig. 3 shows the diagram of circuit of the engine start control method in the method for starting-controlling of embodiment of the present invention ISG type Series-Parallel HEV;
Fig. 4 shows the clutch judder curve synoptic diagram after the method for starting-controlling described in the application embodiment of the present invention;
Fig. 5 shows the structural representation of engine starting control module in the start control system of embodiment of the present invention ISG type Series-Parallel HEV.
Detailed description of the invention
Describe embodiments of the present invention in detail below with reference to drawings and Examples, to the present invention, how application engineering means solve technical matters whereby, and the implementation procedure of reaching technique effect can fully understand and implement according to this.It should be noted that, only otherwise form conflict, each feature in each embodiment and each embodiment in the present invention can mutually combine, and the technical scheme forming is all within protection scope of the present invention.
The starting process of paper ISG type Series-Parallel HEV: with reference to Fig. 1, starting-generating all-in-one 1 is exported driving torque, the motor shaft that drags driving engine 3 rotates; Power-transfer clutch 2 is often typically chosen in conjunction with power-transfer clutch, and power-transfer clutch 2 is bonding state under normal conditions, the medium that power-transfer clutch 2 transmits as moment of torsion, and its platen is connected with the flywheel of driving engine 3, and clutch plate is connected by spline with the motor shaft of starting-generating all-in-one 1.In starting process, the transmission due to power between the platen of power-transfer clutch 2 and clutch plate produces vibration and mechanical wear, and the stressed variation Shaoxing opera of starting process is strong, and the vibration of power-transfer clutch 2 is more obvious, and service life is also shorter.Experiment shows, the suffered moment of torsion of the extent of vibration of power-transfer clutch 2 and the auxiliary power unit of hybrid vehicle is linear, and for motor driving system, its suffered moment of torsion can be expressed as:
wherein J represents rotor inertia, and ω represents cireular frequency, and hence one can see that, and the vibration of power-transfer clutch 2 can reflect indirectly by relative speed variation.
Fig. 2 is the clutch judder curve synoptic diagram before application method for starting-controlling of the present invention with certain ISG type Series-Parallel HEV, and wherein Fig. 2 comprises the clutch judder curve and the starting-generating all-in-one rotating speed (solid line) corresponding with this clutch judder curve and motor speed (dotted line) curve that are positioned at below that are positioned at top.As shown in Figure 2, in the starting process of driving engine 3, clutch judder changes violent, needs to suppress.
In starting process, power-transfer clutch 2 is produced to greater impact and wearing and tearing for solving ISG type Series-Parallel HEV in prior art, cause the service life of power-transfer clutch 2 lower than the defect of needs of expected design, embodiment of the present invention example provides a kind of method for starting-controlling of ISG type Series-Parallel HEV, in the situation that not changing vehicle hardware configuration, realize the vibration optimization of power-transfer clutch 2 by software, thereby reduce the impact to power-transfer clutch 2 and wearing and tearing in starting process, and then improve the service life of power-transfer clutch 2.
ISG type Series-Parallel HEV (specifically should be the auxiliary power unit of described mixing electrical automobile) comprises starting-generating all-in-one 1, power-transfer clutch 2 and driving engine 3, with reference to Fig. 1, described starting-generating all-in-one 1 connects described driving engine 3 by described power-transfer clutch 2, and described control method comprises starting-generating all-in-one method for starting-controlling and engine start control method.
First describing starting-generating all-in-one method for starting-controlling in detail is: start described starting-generating all-in-one 1, and make the torque of described starting-generating all-in-one 1 increase according to the first rate of change is linear at the leading portion of the cranking time section of setting, back segment in the cranking time section of setting rises according to the second rate of change is linear, and described the first rate of change is greater than described the second rate of change.
Particularly, the starting control of described starting-generating all-in-one is mainly carried out segmentation control to the moment of torsion of starting-generating all-in-one 1, before controlling, should, according to the performance requriements of vehicle, set targetedly cranking time section, the rotating speed of driving engine 3 is from 0 time gap that is increased to the engine idle of setting, this is because for Series-Parallel HEV, in the starting process of driving engine 3, vehicle voltage declines, when vehicle voltage is lower than a certain threshold values V
lowtime, driving engine 3 starts, and starts t consuming time
st, vehicle voltage continues to drop to V
min, therefore for ensureing the tractive performance of vehicle, need to be to starting t consuming time
st(being the time gap of cranking time section correspondence) limits.
The moment of torsion of starting-generating all-in-one 1 is carried out to segmentation control to be specially: at the leading portion of cranking time section, controlling the torque of starting-generating all-in-one 1 rises according to larger rate of change (being expressed as in this article the first rate of change) is linear, to realize the quick start of driving engine 3, make the rotating speed of the driving engine 3 being dragged by starting-generating all-in-one 1 to increase rapidly from 0; At the back segment of cranking time section, because trailing driving engine 3 has possessed certain rotating speed, at back segment, the torque of controlling starting-generating all-in-one 1 (is expressed as the second rate of change in this article according to less escalating rate, the second rate of change is less than the first rate of change) linear rising, to guarantee stressed smooth-going in starting process of driving engine 3.
Especially, in a preferred embodiment of the present invention, the leading portion of described cranking time section is preferably 0～0.3t
st, the back segment of described cranking time section is preferably 0.3t
st～t
st, wherein 0 is the initial time of described cranking time section, t
stfor the time gap (starting consuming time) of described cranking time section correspondence; Described the first rate of change is preferably
described the second rate of change is preferably
wherein T
minfor the driving engine pull up torque of setting, driving engine pull up torque is determined according to the concrete model of driving engine 3.In this preferred embodiment, at 0～0.3t
stperiod, the first rate of change rising due to the moment of torsion of starting-generating all-in-one 1 is
so the moment of torsion of starting-generating all-in-one 1 is increased to 0.75T fast from 0
min; Similarly, at follow-up 0.3t
st～t
stperiod, the second rate of change rising due to starting-generating all-in-one 1 moment of torsion is
so the moment of torsion of starting-generating all-in-one 1 is from 0.75T
minbe increased to steadily 1.25T
min.
Apply the method for starting-controlling of above-mentioned starting-generating all-in-one, on the one hand effective cranking time that reduces driving engine 3, guaranteed on the other hand stressed smooth-going in starting process of driving engine 3.But, due to the slow speed of revolution moment of torsion output irregularity of driving engine 3, especially compression ignite moment, moment of torsion sudden change, Vehicular vibration is obvious, so be necessary increases engine start control method on the method for starting-controlling basis of above-mentioned starting-generating all-in-one, smooth-going to realize driving engine 3 moment of torsion output in starting process.
As shown in Figure 3, be the diagram of circuit of engine start control method in the method for starting-controlling of embodiment of the present invention ISG type Series-Parallel HEV, this engine start control method comprises the following steps:
Step 101: from the initial time of described cranking time section, control the fuel injector of described driving engine 3 in stopping oil spout state, control described power-transfer clutch 2 in bonding state, and start to record the cranking time of described driving engine 3.
Particularly, first from the initial time 0 of cranking time section, the fuel injector of control engine 3 is in stopping oil spout state, so that driving engine 3 fail to starts in the situation that rotating speed is lower, in the time that the rotating speed of driving engine 3 reaches default condition (default condition is the engine starting the rotating speed whether rotating speed of driving engine 3 rises to setting in the present embodiment), the just fuel injector oil spout of control engine 3, thus allow driving engine 3 to start.
Step 102: the rotating speed that obtains described driving engine 3 every the sampling interval of setting.
Particularly, the acquisition methods of driving engine 3 rotating speeds can be chosen as the conventional tachogen adopting of those skilled in the art etc., and the sampling interval is specifically set can be of the present invention according to concrete enforcement time, repeats no more in this article.
Step 103: judge whether the current rotating speed of described driving engine 3 is greater than or equal to the engine idle of setting.
Step 104: if judge whether the cranking time of the described driving engine 3 of record is less than or equal to the time gap of described cranking time section correspondence.
Step 105: if control described power-transfer clutch 2 and disconnect.
Particularly, by step 103 and step 104, can guarantee in described cranking time section, and reach after certain standard (will reach in this article the engine idle of setting for the rotating speed of driving engine 3) at the rotating speed of driving engine 3, just can carry out follow-up engine starting step, the starting conditions of time and rotating speed is indispensable, can ensure that the cranking time of driving engine 3 is short on the one hand, improve the tractive performance of vehicle, can avoid on the other hand the compression ignite moment moment of torsion that driving engine 3 is just caused by starting in the time that rotating speed is lower to suddenly change, power-transfer clutch 2 vibrates obvious situation.
If the rotating speed of driving engine 3 reaches engine idle at cranking time Duan Houcai, think starter start fail, exit engine starting program.
In addition, confirming that driving engine 3 has all been applicable to, after starting, needing cut-off clutch 2, no-load starting power generation all-in-one machine 1 on time and rotating speed.
Step 106: after the delay time of setting, judge whether the current rotating speed of described driving engine 3 is greater than or equal to the engine starting rotating speed of setting.
Particularly, because the separation completely of clutch segment needs certain hour, so also need to, after the delay time of setting, carry out subsequent startup step.The setting of described delay time need to be determined according to concrete power-transfer clutch 2 models, to ensure the separation completely of power-transfer clutch 2, the thorough unloading of starting-generating all-in-one 1.Especially, be preferably 0.5 second described delay time.After definite starting-generating all-in-one 1 thoroughly unloads, also need further to judge whether the current rotating speed of driving engine 3 possesses starting conditions, it is the engine starting the rotating speed whether current rotating speed of driving engine 3 is greater than or equal to setting, in general, described engine starting rotating speed is also to determine according to concrete engine type.
Step 107: if control the fuel injector oil spout of described driving engine 3.
Particularly, confirming that driving engine 3 has after starting conditions completely, the fuel injector oil spout of control engine 3, when composite fuel is compressed to after burning-point, composite fuel is lighted, and driving engine 3 starts successfully.If after the delay time of setting, the current rotating speed of driving engine 3 is less than the engine starting rotating speed of setting, thinks starter start fail, exits the starting procedure of driving engine 3.
Fig. 4 shows the clutch judder curve synoptic diagram after the method for starting-controlling described in the application embodiment of the present invention, contrast Fig. 2 can find out, apply after described method for starting-controlling, the Oscillation Amplitude of power-transfer clutch 2 is less, the vibration of power-transfer clutch 2 has obtained effective inhibition, and successful is better than the clutch judder situation shown in Fig. 2.
In sum, the feature of the method for starting-controlling of embodiment of the present invention ISG type Series-Parallel HEV is, on the one hand, application starting-generating all-in-one method for starting-controlling carries out segmentation control to the torque of starting-generating all-in-one 1, has guaranteed stressed smooth-going in starting process of driving engine 3 in the cranking time that effectively reduces driving engine 3; On the other hand, application engine method for starting-controlling, reaches engine idle in the cranking time section of regulation at the rotating speed of driving engine 3, and no-load starting power generation all-in-one machine 1, has ensured that the cranking time of driving engine 3 is short, has improved the tractive performance of vehicle; Then reach after the starting speed of regulation until starting-generating all-in-one 1 complete discharge and driving engine 3, just allow the fuel injector oil spout of driving engine 3, avoid the compression ignite moment moment of torsion that driving engine 3 is just caused by starting in the time that rotating speed is lower to suddenly change, the obvious situation of vibration of power-transfer clutch 2, thereby reduce the torque ripple of driving engine 3, ensured that the moment of torsion output of driving engine 3 in starting process is smooth-going.The output of the stressed smooth-going and moment of torsion of driving engine 3 in starting process is smooth-going, can reduce to a great extent the vibration of power-transfer clutch 2, reduces impact to power-transfer clutch 2 and the wearing and tearing of power-transfer clutch 2, the service life of effectively having improved power-transfer clutch 2.In addition, elect the public transit vehicle of ISG type Series-Parallel HEV as for vehicle, ensured the normal operation of public transit vehicle, effectively reduce car load producer after service cost.
Correspondingly, the embodiment of the present invention also provides a kind of start control system of ISG type Series-Parallel HEV, Fig. 5 shows the structural representation of engine starting control module in this start control system, described hybrid vehicle comprises starting-generating all-in-one 1, power-transfer clutch 2 and driving engine 3, described starting-generating all-in-one 1 connects described driving engine 3 by described power-transfer clutch 2, and the start control system of described ISG type Series-Parallel HEV comprises starting-generating all-in-one starting control module and engine starting control module.
At length, described starting-generating all-in-one starting control module specifically for: start described starting-generating all-in-one 1, and make the torque of described starting-generating all-in-one 1 increase according to the first rate of change is linear at the leading portion of the cranking time section of setting, back segment in the cranking time section of setting rises according to the second rate of change is linear, and described the first rate of change is greater than described the second rate of change.
Further, the leading portion of described cranking time section is 0～0.3t
st, the back segment of described cranking time section is 0.3t
st～t
st, wherein 0 is the initial time of described cranking time section, t
stfor the time gap of described cranking time section correspondence; Described the first rate of change is
described the second rate of change is
wherein T
minfor the driving engine pull up torque of setting.
Described engine starting control module comprises:
Fuel injector control unit 201, for from the initial time of described cranking time section, controls the fuel injector of described driving engine 3 in stopping oil spout state;
Clutch control unit 202, for from the initial time of described cranking time section, controls described power-transfer clutch 2 in bonding state;
Cranking time record cell 203, for from the initial time of described cranking time section, starts to record the cranking time of described driving engine 3;
Engine speed acquiring unit 204, for obtaining the rotating speed of described driving engine 3 every the sampling interval of setting;
The first judging unit 205, for judging whether the current rotating speed of described driving engine 3 that described engine speed acquiring unit 204 obtains is greater than or equal to the engine idle of setting;
The second judging unit 206, for determining that at described the first judging unit 205 the current rotating speed of described driving engine 3 is greater than or equal to the engine idle of setting, judge whether the cranking time of the driving engine 3 that described cranking time record cell 203 records is less than or equal to the time gap of described cranking time section correspondence; Described clutch control unit 202 is also for determining that at described the second judging unit 206 cranking time of described driving engine 3 is less than or equal to the time gap of described cranking time section correspondence, controls described power-transfer clutch 2 and disconnects;
The 3rd judging unit 207, after the delay time of setting at the described power-transfer clutch 2 of disconnection, judge that whether the current rotating speed of described driving engine 3 that described engine speed acquiring unit 204 obtains is greater than or equal to the engine starting rotating speed of setting, is preferably 0.5s described delay time;
Described fuel injector control unit 201, also, for determining that at described the 3rd judging unit 207 the current rotating speed of described driving engine 3 is greater than or equal to the engine starting rotating speed of setting, controls the fuel injector oil spout of described driving engine 3.
The concrete treating process of above-mentioned each unit can, with reference to the description in the method for the embodiment of the present invention above, not repeat them here.
In sum, the feature of the start control system of embodiment of the present invention ISG type Series-Parallel HEV is, on the one hand, starting-generating all-in-one starting control module is carried out segmentation control to the torque of starting-generating all-in-one 1, has guaranteed stressed smooth-going in starting process of driving engine 3 in effectively reducing driving engine 3 cranking timies; On the other hand, engine starting control module, reaches engine idle in the cranking time section of regulation at the rotating speed of driving engine 3, and no-load starting power generation all-in-one machine 1, has ensured that the cranking time of driving engine 3 is short, has improved the tractive performance of vehicle; Then reach after the starting speed of regulation until starting-generating all-in-one 1 complete discharge and driving engine 3, just allow the fuel injector oil spout of driving engine 3, avoid the compression ignite moment moment of torsion that driving engine 3 is just caused by starting in the time that rotating speed is lower to suddenly change, the obvious situation of vibration of power-transfer clutch 2, thereby reduce the torque ripple of driving engine 3, ensured that the moment of torsion output of driving engine 3 in starting process is smooth-going.The output of the stressed smooth-going and moment of torsion of driving engine 3 in starting process is smooth-going, can reduce to a great extent the vibration of power-transfer clutch 2, reduces impact to power-transfer clutch 2 and the wearing and tearing of power-transfer clutch 2, the service life of effectively having improved power-transfer clutch 2.In addition, elect the public transit vehicle of ISG type Series-Parallel HEV as for vehicle, ensured the normal operation of public transit vehicle, effectively reduce car load producer after service cost.
Those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general computer device, they can concentrate on single computer device, or be distributed on the network that multiple computer devices form, alternatively, they can be realized with the executable program code of computer device, thereby, they can be stored in memory storage and be carried out by computer device, or they are made into respectively to each integrated circuit modules, or the multiple modules in them or step are made into single integrated circuit module realize.Like this, the present invention is not restricted to any specific hardware and software combination.
Although embodiment disclosed in this invention as above, the embodiment that described content just adopts for the ease of understanding the present invention, not in order to limit the present invention.Technical personnel in any the technical field of the invention; do not departing under the prerequisite of spirit and scope disclosed in this invention; can do any amendment and variation what implement in form and in details; but scope of patent protection of the present invention, still must be as the criterion with the scope that appending claims was defined.
Claims (8)
1. the method for starting-controlling of an ISG type Series-Parallel HEV, described hybrid vehicle comprises starting-generating all-in-one, power-transfer clutch and driving engine, described starting-generating all-in-one connects described driving engine by described power-transfer clutch, it is characterized in that, described control method comprises starting-generating all-in-one method for starting-controlling and engine start control method;
Described starting-generating all-in-one method for starting-controlling is: start described starting-generating all-in-one, and make the torque of described starting-generating all-in-one increase according to the first rate of change is linear at the leading portion of the cranking time section of setting, back segment in the cranking time section of setting rises according to the second rate of change is linear, and described the first rate of change is greater than described the second rate of change;
Described engine start control method comprises:
From the initial time of described cranking time section, control the fuel injector of described driving engine in stopping oil spout state, control described power-transfer clutch in bonding state, and start to record the cranking time of described driving engine;
Obtain the rotating speed of described driving engine every the sampling interval of setting;
Judge whether the current rotating speed of described driving engine is greater than or equal to the engine idle of setting;
If so, judge whether the cranking time of the described driving engine of record is less than or equal to the time gap of described cranking time section correspondence;
If so, controlling described power-transfer clutch disconnects;
After the delay time of setting, judge whether the current rotating speed of described driving engine is greater than or equal to the engine starting rotating speed of setting;
If so, control the fuel injector oil spout of described driving engine.
2. method according to claim 1, is characterized in that, the leading portion of described cranking time section is 0～0.3tst, and the back segment of described cranking time section is 0.3t
st～t
st, wherein 0 is the initial time of described cranking time section, t
stfor the time gap of described cranking time section correspondence.
3. method according to claim 2, is characterized in that, described the first rate of change is
described the second rate of change is
wherein T
minfor the driving engine pull up torque of setting.
4. according to the method described in claims 1 to 3 any one, it is characterized in that, be 0.5s described delay time.
5. the start control system of an ISG type Series-Parallel HEV, described hybrid vehicle comprises starting-generating all-in-one, power-transfer clutch and driving engine, described starting-generating all-in-one connects described driving engine by described power-transfer clutch, it is characterized in that, described control system comprises starting-generating all-in-one starting control module and engine starting control module;
Described starting-generating all-in-one starting control module specifically for: start described starting-generating all-in-one, and make the torque of described starting-generating all-in-one increase according to the first rate of change is linear at the leading portion of the cranking time section of setting, back segment in the cranking time section of setting rises according to the second rate of change is linear, and described the first rate of change is greater than described the second rate of change;
Described engine starting control module comprises:
Fuel injector control unit, for from the initial time of described cranking time section, controls the fuel injector of described driving engine in stopping oil spout state;
Clutch control unit, for from the initial time of described cranking time section, controls described power-transfer clutch in bonding state;
Cranking time record cell, for from the initial time of described cranking time section, starts to record the cranking time of described driving engine;
Engine speed acquiring unit, for obtaining the rotating speed of described driving engine every the sampling interval of setting;
The first judging unit, for judging whether the current rotating speed of driving engine that described engine speed acquiring unit obtains is greater than or equal to the engine idle of setting;
The second judging unit, for determining that at described the first judging unit the current rotating speed of described driving engine is greater than or equal to the engine idle of setting, judge whether the cranking time of the driving engine of described cranking time recording unit records is less than or equal to the time gap of described cranking time section correspondence; Described clutch control unit, also for determining that at described the second judging unit the cranking time of described driving engine is less than or equal to the time gap of described cranking time section correspondence, is controlled described power-transfer clutch and is disconnected;
The 3rd judging unit, for disconnecting after the delay time that described power-transfer clutch sets, judges whether the current rotating speed of driving engine that described engine speed acquiring unit obtains is greater than or equal to the engine starting rotating speed of setting;
Described fuel injector control unit, also for determining that at described the 3rd judging unit the current rotating speed of described driving engine is greater than or equal to the engine starting rotating speed of setting, controls the fuel injector oil spout of described driving engine.
6. system according to claim 5, is characterized in that, the leading portion of described cranking time section is 0～0.3t
st, the back segment of described cranking time section is 0.3t
st～t
st, wherein 0 is the initial time of described cranking time section, t
stfor the time gap of described cranking time section correspondence.
7. system according to claim 6, is characterized in that, described the first rate of change is
described the second rate of change is
wherein T
minfor the driving engine pull up torque of setting.
8. according to the system described in claim 5 to 7 any one, it is characterized in that, be 0.5s described delay time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410418001.8A CN104176049B (en) | 2014-08-22 | 2014-08-22 | The method for starting-controlling of ISG type Series-Parallel HEV and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410418001.8A CN104176049B (en) | 2014-08-22 | 2014-08-22 | The method for starting-controlling of ISG type Series-Parallel HEV and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104176049A true CN104176049A (en) | 2014-12-03 |
| CN104176049B CN104176049B (en) | 2016-07-27 |
Family
ID=51957493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410418001.8A Active CN104176049B (en) | 2014-08-22 | 2014-08-22 | The method for starting-controlling of ISG type Series-Parallel HEV and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104176049B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104859635A (en) * | 2015-05-15 | 2015-08-26 | 北汽福田汽车股份有限公司 | Engine control method of hybrid vehicle, engine control system of hybrid vehicle and hybrid vehicle |
| CN104859633A (en) * | 2015-05-07 | 2015-08-26 | 潍柴动力股份有限公司 | Method and device for controlling hybrid automobile |
| CN106482952A (en) * | 2016-11-03 | 2017-03-08 | 中国航空动力机械研究所 | Main linkage test system and method |
| CN110103944A (en) * | 2019-04-18 | 2019-08-09 | 浙江吉利控股集团有限公司 | A kind of engine startup method, device and equipment |
| CN112145292A (en) * | 2020-09-23 | 2020-12-29 | 重庆长安汽车股份有限公司 | Method for optimizing transient vibration impact of transmission chain during unloading of engine torque |
| CN113415267A (en) * | 2021-07-14 | 2021-09-21 | 中国第一汽车股份有限公司 | Engine starting control method for hybrid electric vehicle, vehicle and storage medium |
| CN113464339A (en) * | 2021-07-01 | 2021-10-01 | 东风汽车集团股份有限公司 | Dragging torque control method and system |
| CN113494407A (en) * | 2020-04-08 | 2021-10-12 | 广州汽车集团股份有限公司 | Engine starting control based on motor speed regulation |
| CN113715823A (en) * | 2021-09-26 | 2021-11-30 | 一汽解放汽车有限公司 | Engine starting control method for light-mixed commercial vehicle |
| CN113997936A (en) * | 2021-12-09 | 2022-02-01 | 蜂巢传动科技河北有限公司 | Control method and device of hybrid vehicle, storage medium and vehicle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009087002A1 (en) * | 2008-01-09 | 2009-07-16 | Zf Friedrichshafen Ag | Method for starting the internal combustion engine in a vehicle with an integrated starter-generator |
| CN102923126A (en) * | 2011-08-08 | 2013-02-13 | Bae系统控制有限公司 | Method and apparatus for controlling hybrid electric vehicles |
| WO2013137439A1 (en) * | 2012-03-15 | 2013-09-19 | 日産自動車株式会社 | Engine start control device and start control method of hybrid drive electric vehicle |
| US20140004997A1 (en) * | 2012-04-13 | 2014-01-02 | Ford Global Technologies, Llc | Active Damping During Clutch Engagement for Engine Start |
| US20140046529A1 (en) * | 2012-05-04 | 2014-02-13 | Ford Global Technologies, Llc | Methods and systems for operating a driveline disconnect clutch |
| WO2014103551A1 (en) * | 2012-12-26 | 2014-07-03 | 日産自動車株式会社 | Hybrid vehicle control device |
-
2014
- 2014-08-22 CN CN201410418001.8A patent/CN104176049B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009087002A1 (en) * | 2008-01-09 | 2009-07-16 | Zf Friedrichshafen Ag | Method for starting the internal combustion engine in a vehicle with an integrated starter-generator |
| CN102923126A (en) * | 2011-08-08 | 2013-02-13 | Bae系统控制有限公司 | Method and apparatus for controlling hybrid electric vehicles |
| WO2013137439A1 (en) * | 2012-03-15 | 2013-09-19 | 日産自動車株式会社 | Engine start control device and start control method of hybrid drive electric vehicle |
| US20140004997A1 (en) * | 2012-04-13 | 2014-01-02 | Ford Global Technologies, Llc | Active Damping During Clutch Engagement for Engine Start |
| US20140046529A1 (en) * | 2012-05-04 | 2014-02-13 | Ford Global Technologies, Llc | Methods and systems for operating a driveline disconnect clutch |
| WO2014103551A1 (en) * | 2012-12-26 | 2014-07-03 | 日産自動車株式会社 | Hybrid vehicle control device |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104859633A (en) * | 2015-05-07 | 2015-08-26 | 潍柴动力股份有限公司 | Method and device for controlling hybrid automobile |
| CN104859635B (en) * | 2015-05-15 | 2017-10-10 | 北汽福田汽车股份有限公司 | Engine control, system and the motor vehicle driven by mixed power of motor vehicle driven by mixed power |
| CN104859635A (en) * | 2015-05-15 | 2015-08-26 | 北汽福田汽车股份有限公司 | Engine control method of hybrid vehicle, engine control system of hybrid vehicle and hybrid vehicle |
| CN106482952A (en) * | 2016-11-03 | 2017-03-08 | 中国航空动力机械研究所 | Main linkage test system and method |
| CN110103944A (en) * | 2019-04-18 | 2019-08-09 | 浙江吉利控股集团有限公司 | A kind of engine startup method, device and equipment |
| CN113494407A (en) * | 2020-04-08 | 2021-10-12 | 广州汽车集团股份有限公司 | Engine starting control based on motor speed regulation |
| CN112145292B (en) * | 2020-09-23 | 2022-01-07 | 重庆长安汽车股份有限公司 | Method for optimizing transient vibration impact of transmission chain during unloading of engine torque |
| CN112145292A (en) * | 2020-09-23 | 2020-12-29 | 重庆长安汽车股份有限公司 | Method for optimizing transient vibration impact of transmission chain during unloading of engine torque |
| CN113464339A (en) * | 2021-07-01 | 2021-10-01 | 东风汽车集团股份有限公司 | Dragging torque control method and system |
| CN113415267A (en) * | 2021-07-14 | 2021-09-21 | 中国第一汽车股份有限公司 | Engine starting control method for hybrid electric vehicle, vehicle and storage medium |
| CN113415267B (en) * | 2021-07-14 | 2022-05-13 | 中国第一汽车股份有限公司 | Engine starting control method for hybrid electric vehicle, vehicle and storage medium |
| CN113715823A (en) * | 2021-09-26 | 2021-11-30 | 一汽解放汽车有限公司 | Engine starting control method for light-mixed commercial vehicle |
| CN113715823B (en) * | 2021-09-26 | 2024-04-26 | 一汽解放汽车有限公司 | Engine start control method for light-weight commercial vehicle |
| CN113997936A (en) * | 2021-12-09 | 2022-02-01 | 蜂巢传动科技河北有限公司 | Control method and device of hybrid vehicle, storage medium and vehicle |
| CN113997936B (en) * | 2021-12-09 | 2024-04-05 | 蜂巢传动科技河北有限公司 | Control method and device of hybrid electric vehicle, storage medium and vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104176049B (en) | 2016-07-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104176049A (en) | Method and system for controlling starting of ISG (integrated starter and generator)-type series-parallel hybrid electric vehicle | |
| US9260002B2 (en) | Engine start systems and technique for hybrid electric vehicles | |
| US9409565B2 (en) | Hybrid electric vehicle control system and method | |
| CN105818808B (en) | A kind of hybrid power system idle speed control | |
| CN110341685B (en) | Engine start-stop control method and system for dual-motor range-extending driving hybrid vehicle | |
| US10023183B2 (en) | Method of controlling engine speed of hybrid vehicle | |
| CN104421089B (en) | The engine starting system of hybrid vehicle and method | |
| CN103863304B (en) | For controlling the method and system of hybrid electric vehicle | |
| CN103587523B (en) | For the method and system for the output for controlling combination starter generator | |
| US9027679B2 (en) | Series-parallel coupling control method and system of hybrid power system | |
| CN106585617B (en) | Engine start control method, device and HCU | |
| US11110908B2 (en) | Hybrid vehicle and method of controlling mode transition thereof | |
| CN104608759A (en) | Engine start control method | |
| CN109017752B (en) | Hybrid electric vehicle and control method thereof | |
| CN103318169A (en) | Engine starting method | |
| CN113954817B (en) | Gear shifting method of hybrid electric vehicle, controller and vehicle | |
| CN203713586U (en) | integrated control system for range extender of electric motor coach | |
| KR101964786B1 (en) | Method and apparatus for controlling driving of hybrid vehicle | |
| CN105246732A (en) | Startup control device for internal combustion engines and startup control method | |
| CN103863305A (en) | Control method and system for limiting maximum speed of engine and motor of hybrid vehicle | |
| CN103129551B (en) | Braking control system of hybrid vehicle | |
| CN103640572A (en) | Vehicle hybrid power drive system control method | |
| KR102621563B1 (en) | Method for controlling engine of hybrid electric vehicle | |
| US10351123B2 (en) | Method for controlling hybrid vehicle | |
| CN104590240A (en) | Parallel to serial control method for gas-electric hybrid type hybrid power system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Ling Inventor after: Song Chao Inventor after: Xi Like Inventor after: Xie Yongbo Inventor after: Shi Wei Inventor before: Song Chao Inventor before: Xi Like Inventor before: Liu Ling Inventor before: Xie Yongbo Inventor before: Shi Wei |
|
| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Fifty-seven, Zhuzhou Province, China National hi tech Development Zone, Hunan, Li Yu Industrial Park, district 412007 Patentee after: Zhongche Times Electric Vehicle Co.,Ltd. Address before: Fifty-seven, Zhuzhou Province, China National hi tech Development Zone, Hunan, Li Yu Industrial Park, district 412007 Patentee before: HUNAN CRRC TIMES ELECTRIC VEHICLE Co.,Ltd. Address after: Fifty-seven, Zhuzhou Province, China National hi tech Development Zone, Hunan, Li Yu Industrial Park, district 412007 Patentee after: HUNAN CRRC TIMES ELECTRIC VEHICLE Co.,Ltd. Address before: Fifty-seven, Zhuzhou Province, China National hi tech Development Zone, Hunan, Li Yu Industrial Park, district 412007 Patentee before: HUNAN CSR TIMES ELECTRIC VEHICLE Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210707 Address after: 410000 Hunan Changsha Yuelu District bachelor road 336 Huigu science and Technology Industrial Park C-4 to C-8 detection workshop 3-102, - 103, 105, 106 Patentee after: Changsha CRRC Zhiyu New Energy Technology Co.,Ltd. Address before: 412007 fifty-seven zone, chestnut rain Industrial Park, national hi tech Development Zone, Hunan, Zhuzhou Patentee before: Zhongche Times Electric Vehicle Co.,Ltd. |
|
| TR01 | Transfer of patent right |