[go: up one dir, main page]

CN111895160A - Control device and control method for electromagnetic switch valve - Google Patents

Control device and control method for electromagnetic switch valve Download PDF

Info

Publication number
CN111895160A
CN111895160A CN202010679947.5A CN202010679947A CN111895160A CN 111895160 A CN111895160 A CN 111895160A CN 202010679947 A CN202010679947 A CN 202010679947A CN 111895160 A CN111895160 A CN 111895160A
Authority
CN
China
Prior art keywords
sensor
switch valve
electromagnetic switch
main control
control chip
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.)
Pending
Application number
CN202010679947.5A
Other languages
Chinese (zh)
Inventor
付永锋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Gongcheng Electrical Technology Co ltd
Original Assignee
Suzhou Gongcheng Electrical Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Suzhou Gongcheng Electrical Technology Co ltd filed Critical Suzhou Gongcheng Electrical Technology Co ltd
Priority to CN202010679947.5A priority Critical patent/CN111895160A/en
Publication of CN111895160A publication Critical patent/CN111895160A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/02Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0675Electromagnet aspects, e.g. electric supply therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

The invention discloses a control device and a control method of an electromagnetic switch valve, and the control device comprises a controller, a first sensor for sensing vehicle running environment condition information and a second sensor for sensing engine working state information, wherein the controller is integrated with a main control chip and a database module, and the database module is used for storing running characteristic data sets of the electromagnetic switch valve under different vehicle running environment conditions and different engine working state conditions; the first sensor and the second sensor are electrically connected to the main control chip, and the main control chip matches the running characteristic data of the electromagnetic switch valve from the database module according to the received vehicle running environment condition and engine working state information and correspondingly controls the electromagnetic switch valve to work according to the running characteristic data. The control device has a simple and reasonable structure, is easy to control, can realize the graded control of the air input of the electromagnetic switch valve, and ensures the starting performance and the idling stability of the vehicle when the vehicle is used in plain areas and plateau areas.

Description

Control device and control method for electromagnetic switch valve
Technical Field
The invention relates to the technical field of electromagnetic switch valve control, and particularly provides a control device and a control method of an electromagnetic switch valve.
Background
The control mode of the electromagnetic switch valve on the common motorcycle only has two states of opening and closing, and the simpler on-off function can be realized.
However, when this control mode is applied to a motorcycle to control the idle air amount, only the maximum amount of the air amount and the two limit states of the full close to zero are controlled, so that the variation of the air amount is large, and the engine speed is caused to drop from high to low. Especially in plateau areas, this can lead to very unstable engine speeds and even to stalling. Therefore, a control method capable of controlling stepwise decrease of the idle air amount is demanded.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
In order to overcome the defects, the invention provides a control device and a control method of an electromagnetic switch valve, the control device has a simple and reasonable structure, is easy to control, can realize the graded control of the air inflow of the electromagnetic switch valve, and well ensures the starting performance and the idling stability performance of a vehicle when the vehicle is used in plain areas and plateau areas.
The technical scheme adopted by the invention for solving the technical problem is as follows: a control device of an electromagnetic switch valve comprises a controller, a first sensor and a second sensor, wherein the first sensor is used for sensing vehicle running environment condition information, the second sensor is used for sensing engine working state information, the controller is integrated with a main control chip and a database module which is electrically connected with the main control chip, and the database module is used for storing running characteristic data sets of the electromagnetic switch valve under different vehicle running environment conditions and different engine working state conditions; the first sensor and the second sensor are respectively and electrically connected to the main control chip so as to transmit the sensed vehicle running environment condition information and the sensed engine working state information to the main control chip;
and the main control chip matches the running characteristic data of the electromagnetic switch valve from the database module according to the received vehicle running environment condition information and the engine working state information, and correspondingly controls the electromagnetic switch valve to work according to the running characteristic data.
As a further improvement of the invention, the first sensor is a pressure sensor; the second sensor adopts a temperature sensor;
the database module is used for storing an operation characteristic data set of the electromagnetic switch valve under different vehicle running environment pressure conditions and different engine working temperature conditions, and the operation characteristic data comprises duty ratio and implementation times.
As a further improvement of the present invention, the controller further integrates a signal receiving module electrically connected to the main control chip, and the signal receiving module is further electrically connected to the first sensor and the second sensor, respectively.
As a further improvement of the present invention, the controller further integrates a parameter setting module for setting the single cycle time of the electromagnetic switch valve, and the parameter setting module is electrically connected to the main control chip.
The invention also provides a control method of the control device of the electromagnetic switch valve, which comprises the following steps:
step 1): providing a controller, a first sensor and a second sensor, wherein the controller is integrated with a main control chip and a database module electrically connected with the main control chip, and the database module is used for storing running characteristic data sets of the electromagnetic switch valve under different vehicle running environment conditions and different engine working state conditions; the first sensor is used for sensing vehicle running environment condition information; the second sensor is used for sensing the engine working state information;
step 2): when a vehicle runs, the first sensor transmits the running environment condition information of the vehicle sensed by the first sensor to the main control chip, and the second sensor also transmits the working state information of the engine sensed by the second sensor to the main control chip;
step 3): and the main control chip matches the running characteristic data of the electromagnetic switch valve from the database module according to the received vehicle running environment condition information and the engine working state information, and correspondingly controls the electromagnetic switch valve to work according to the running characteristic data.
As a further improvement of the invention, the first sensor is a pressure sensor; the second sensor adopts a temperature sensor;
the database module is used for storing an operation characteristic data set of the electromagnetic switch valve under different vehicle running environment pressure conditions and different engine working temperature conditions, and the operation characteristic data comprises duty ratio and implementation times.
As a further improvement of the present invention, the controller further integrates a signal receiving module and a parameter setting module for setting a single cycle time of the electromagnetic switch valve, the signal receiving module and the parameter setting module are both electrically connected to the main control chip, and the signal receiving module is further electrically connected to the first sensor and the second sensor, respectively.
The invention has the beneficial effects that: the invention realizes the hierarchical control of the air input of the electromagnetic switch valve on the basis of not changing the structure, the stroke and the basic function of the electromagnetic switch valve, thereby well ensuring the starting performance and the idling stability of the vehicle when the vehicle is used in plain areas and plateau areas; in addition, the invention also realizes the unchanged cost of the electromagnetic switch valve and improves the cost performance of the electromagnetic switch valve.
Drawings
Fig. 1 is a block diagram illustrating an operation principle of a control device of the electromagnetic opening/closing valve according to the present invention;
fig. 2 is a schematic diagram of a stepped working mode of the electromagnetic switch valve under the control of the control device.
The following description is made with reference to the accompanying drawings:
1-a controller; 10-main control chip; 11-a database module; 12-a signal receiving module; 13-parameter setting module; 2 — a first sensor; 3-second sensor.
Detailed Description
The following description of the embodiments of the present invention is provided by way of specific examples, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions of the present invention, so that the present invention has no technical significance. The terms "first" and "second" used in the present specification are for convenience of description and are not intended to limit the scope of the present invention, and changes or modifications in the relative relationship may be made without substantial changes in the technical content.
Fig. 1 is a block diagram illustrating an operation principle of a control device of an electromagnetic switch valve according to the present invention.
The control device of the electromagnetic switch valve comprises a controller 1, a first sensor 2 used for sensing vehicle running environment condition information and a second sensor 3 used for sensing engine working state information, wherein the controller 1 is integrated with a main control chip 10 and a database module 11 electrically connected with the main control chip 10, and the database module 11 is used for storing running characteristic data sets of the electromagnetic switch valve under different vehicle running environment conditions and different engine working state conditions; the first sensor 2 and the second sensor 3 are respectively and electrically connected to the main control chip 10, so as to transmit the vehicle running environment condition information and the engine working state information sensed by the sensors to the main control chip 10; the main control chip 10 matches the running characteristic data of the electromagnetic switch valve from the database module 11 according to the received vehicle running environment condition information and the engine working state information, and correspondingly controls the electromagnetic switch valve to work according to the running characteristic data.
In the control device structure of the electromagnetic opening/closing valve, it is preferable that the first sensor 2 is a pressure sensor; the second sensor 3 adopts a temperature sensor;
the database module 11 is used for storing an operation characteristic data set of the electromagnetic switch valve under different vehicle running environment pressure conditions and different engine working temperature conditions, and the operation characteristic data comprises duty ratio and implementation times. Tables 1 and 2 below show an example mode of operating the characteristic data set in the database module 11, and specific values of the duty ratio (DutyN) and the number of times of implementation (Mx) are not shown because they are used for illustration only, but in actual use, the specific data of the duty ratio and the number of times of implementation will be collected through several experiments.
Table 1:
Figure BDA0002585419040000061
table 2:
Figure BDA0002585419040000062
preferably, the controller 1 further integrates a signal receiving module 12 electrically connected to the main control chip 10, and the signal receiving module 12 is further electrically connected to the first sensor 2 and the second sensor 3, respectively. Namely: the first sensor 2 transmits the pressure information of the driving environment of the vehicle sensed by the first sensor 2 and the engine working temperature information sensed by the second sensor 3 to the signal receiving module 12, and the signal receiving module 12 transmits the information to the main control chip 10.
Preferably, the controller 1 further integrates a parameter setting module 13 for setting the single cycle time of the electromagnetic switch valve, and the parameter setting module 13 is electrically connected to the main control chip 10.
In addition, the invention also provides a control method of the control device of the electromagnetic switch valve, which comprises the following steps:
step 1): providing a controller 1, a first sensor 2 and a second sensor 3, wherein the controller 1 is integrated with a main control chip 10 and a database module 11 electrically connected with the main control chip 10, and the database module 11 is used for storing an operation characteristic data set of the electromagnetic switch valve under different vehicle running environment conditions and different engine working state conditions; the first sensor 2 is used for sensing vehicle running environment condition information; the second sensor 3 is used for sensing the engine working state information;
step 2): when a vehicle runs, the first sensor 2 transmits the vehicle running environment condition information sensed by the first sensor to the main control chip 10, and the second sensor 3 also transmits the engine working state information sensed by the second sensor to the main control chip 10;
step 3): the main control chip 10 matches the running characteristic data of the electromagnetic switch valve from the database module 11 according to the received vehicle running environment condition information and the engine working state information, and correspondingly controls the electromagnetic switch valve to work according to the running characteristic data.
In the above control method, it is preferable that the first sensor 2 is a pressure sensor; the second sensor 3 adopts a temperature sensor;
the database module 11 is used for storing an operation characteristic data set of the electromagnetic switch valve under different vehicle running environment pressure conditions and different engine working temperature conditions, and the operation characteristic data comprises duty ratio and implementation times.
Preferably, the controller 1 further integrates a signal receiving module 12 and a parameter setting module 13 for setting the single cycle time of the electromagnetic switch valve, the signal receiving module 12 and the parameter setting module 13 are both electrically connected to the main control chip 10, and the signal receiving module 12 is further electrically connected to the first sensor 2 and the second sensor 3, respectively.
In addition, to further refine the control method of the control device for describing the electromagnetic switch valve, the following is specifically exemplified:
example 1:
when the vehicle runs in a plain area, the atmospheric pressure sensed by the first sensor 2 is 101.3kPa, the engine temperature sensed by the second sensor 3 is 20 degrees, and the main control chip 10 matches the operation characteristic data of the electromagnetic switch valve from the database module 11 according to the atmospheric pressure value and the engine temperature value, that is, the operation characteristic data under the above conditions is: duty ratio (DutyN) is 50% and number of times of implementation (Mx) is 100 times; the single cycle time T0 of the solenoid switch valve is then set to 20ms by the parameter setting module 13, where T0 and DutyN satisfy the following equation: DutyN is (tN/T0) × 100%, wherein tN is the single opening time of the electromagnetic switch valve; the main control chip 10 controls the electromagnetic switch valve to work for 2s according to the conditions that the DutyN is 50%, the Mx is 100 times, and the T0 is 20ms, and after the 2s work is finished, the main control chip 10 controls the electromagnetic switch valve to be closed.
Therefore, when the engine is operated for 2 seconds, the temperature of the engine is increased, and then the main control chip 10 matches new operation characteristic data of the electromagnetic switch valve from the database module 11 according to the atmospheric pressure value and the new engine temperature value, and then controls the electromagnetic switch valve to open a new round of operation for n seconds according to the new operation characteristic data and the set T0; … …, so as to continuously control the step operation of the electromagnetic switch valve (wherein, the step operation mode of the electromagnetic switch valve can refer to the figure 2).
Description of the drawings: when the DutyN is 0 or the Mx is 0, it indicates that the electromagnetic opening/closing valve is in the off state.
Example 2:
when the vehicle runs in the 2500 m altitude area on the plateau, the atmospheric pressure sensed by the first sensor 2 is 75kPa, the engine temperature sensed by the second sensor 3 is 10 degrees, the main control chip 10 matches the running characteristic data of the electromagnetic switch valve from the database module 11 according to the atmospheric pressure value and the engine temperature value, namely the running characteristic data under the above conditions is as follows: duty ratio (DutyN) is 75%, number of times of implementation (Mx) is 200; the single cycle time T0 of the solenoid switch valve is then set to 20ms by the parameter setting module 13, where T0 and DutyN satisfy the following equation: DutyN is (tN/T0) × 100%, wherein tN is the single opening time of the electromagnetic switch valve; the main control chip 10 controls the operation of the electromagnetic switch valve for 4s according to the conditions that the DutyN is 75%, the Mx is 200 times, and the T0 is 20ms, and after the operation of 4s is finished, the main control chip 10 controls the electromagnetic switch valve to be closed.
Because the engine is operated for 4s at the moment and the temperature of the engine is increased, the main control chip 10 matches new operation characteristic data of the electromagnetic switch valve from the database module 11 according to the atmospheric pressure value and the new engine temperature value, and then controls the electromagnetic switch valve to be opened for a new round of operation for n seconds according to the new operation characteristic data and the set T0; … …, so continuously controlling the electromagnetic switch valve to work in stages.
Description of the drawings: when the DutyN is 0 or the Mx is 0, it indicates that the electromagnetic opening/closing valve is in the off state.
In conclusion, the invention realizes the graded control of the air input of the electromagnetic switch valve on the basis of not changing the structure, the stroke and the basic function of the electromagnetic switch valve, thereby well ensuring the starting performance and the idling stability of the vehicle when the vehicle is used in plain areas and plateau areas; in addition, the invention also realizes the unchanged cost of the electromagnetic switch valve and improves the cost performance of the electromagnetic switch valve.
The above embodiments are merely illustrative of the efficacy of the present invention and not intended to limit the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be construed as being within the scope of the present invention.

Claims (7)

1. A control device for an electromagnetic opening/closing valve, characterized in that: the vehicle running environment monitoring system comprises a controller (1), a first sensor (2) and a second sensor (3), wherein the first sensor (2) is used for sensing vehicle running environment condition information, the second sensor is used for sensing engine working state information, the controller (1) is integrated with a main control chip (10) and a database module (11) which is electrically connected with the main control chip (10), and the database module (11) is used for storing running characteristic data sets of the electromagnetic switch valve under different vehicle running environment conditions and different engine working state conditions; the first sensor (2) and the second sensor (3) are respectively and electrically connected with the main control chip (10) so as to transmit the sensed vehicle running environment condition information and the sensed engine working state information to the main control chip (10);
the main control chip (10) matches the running characteristic data of the electromagnetic switch valve from the database module (11) according to the received vehicle running environment condition information and the engine working state information, and correspondingly controls the electromagnetic switch valve to work according to the running characteristic data.
2. The control device of the electromagnetic opening/closing valve according to claim 1, characterized in that: the first sensor (2) adopts a pressure sensor; the second sensor (3) adopts a temperature sensor;
the database module (11) is used for storing an operation characteristic data set of the electromagnetic switch valve under different vehicle running environment pressure conditions and different engine working temperature conditions, and the operation characteristic data comprises duty ratio and implementation times.
3. The control device of the electromagnetic opening/closing valve according to claim 1, characterized in that: the controller (1) is further integrated with a signal receiving module (12) electrically connected with the main control chip (10), and the signal receiving module (12) is further electrically connected with the first sensor (2) and the second sensor (3) respectively.
4. The control device of the electromagnetic opening/closing valve according to claim 1, characterized in that: the controller (1) is further integrated with a parameter setting module (13) used for setting the single cycle time of the electromagnetic switch valve, and the parameter setting module (13) is electrically connected to the main control chip (10).
5. A control method of a control device of an electromagnetic opening/closing valve according to any one of claims 1 to 4, characterized in that: the method comprises the following steps:
step 1): providing a controller (1), a first sensor (2) and a second sensor (3), wherein the controller (1) is integrated with a main control chip (10) and a database module (11) electrically connected with the main control chip (10), and the database module (11) is used for storing an operation characteristic data set of the electromagnetic switch valve under different vehicle running environment conditions and different engine working state conditions; the first sensor (2) is used for sensing vehicle running environment condition information; the second sensor (3) is used for sensing engine working state information;
step 2): when a vehicle runs, the first sensor (2) transmits the vehicle running environment condition information sensed by the first sensor to the main control chip (10), and the second sensor (3) also transmits the engine working state information sensed by the second sensor to the main control chip (10);
step 3): the main control chip (10) matches the running characteristic data of the electromagnetic switch valve from the database module (11) according to the received vehicle running environment condition information and the engine working state information, and correspondingly controls the electromagnetic switch valve to work according to the running characteristic data.
6. The control method of the control device of the electromagnetic opening/closing valve according to claim 5, characterized in that: the first sensor (2) adopts a pressure sensor; the second sensor (3) adopts a temperature sensor;
the database module (11) is used for storing an operation characteristic data set of the electromagnetic switch valve under different vehicle running environment pressure conditions and different engine working temperature conditions, and the operation characteristic data comprises duty ratio and implementation times.
7. The control method of the control device of the electromagnetic opening/closing valve according to claim 5, characterized in that: the controller (1) is further integrated with a signal receiving module (12) and a parameter setting module (13) for setting the single cycle time of the electromagnetic switch valve, the signal receiving module (12) and the parameter setting module (13) are both electrically connected to the main control chip (10), and the signal receiving module (12) is further electrically connected with the first sensor (2) and the second sensor (3) respectively.
CN202010679947.5A 2020-07-15 2020-07-15 Control device and control method for electromagnetic switch valve Pending CN111895160A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010679947.5A CN111895160A (en) 2020-07-15 2020-07-15 Control device and control method for electromagnetic switch valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010679947.5A CN111895160A (en) 2020-07-15 2020-07-15 Control device and control method for electromagnetic switch valve

Publications (1)

Publication Number Publication Date
CN111895160A true CN111895160A (en) 2020-11-06

Family

ID=73192753

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010679947.5A Pending CN111895160A (en) 2020-07-15 2020-07-15 Control device and control method for electromagnetic switch valve

Country Status (1)

Country Link
CN (1) CN111895160A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001208236A (en) * 2000-01-27 2001-08-03 Suzuki Motor Corp Control device for solenoid controlled valve
CN1796752A (en) * 2004-12-20 2006-07-05 天津内燃机研究所 Electric control engine of motorcycle of using monofuel LPG
CN202325907U (en) * 2011-12-09 2012-07-11 重庆长安伟世通发动机控制系统有限公司 Idle speed running air automatic compensation system of automobile engine
CN102889148A (en) * 2011-07-19 2013-01-23 通用汽车环球科技运作有限责任公司 Methodology to compensate the effect of humidity and altitude on hcci combustion
CN107664063A (en) * 2016-07-28 2018-02-06 株式会社斯巴鲁 Gas bypass control valve device
CN110056441A (en) * 2018-12-02 2019-07-26 柳州英飞科技有限公司 A kind of control method of automobile engine oil supply system electronic controller
CN110397509A (en) * 2019-07-08 2019-11-01 江苏宗申车业有限公司 A plateau adaptive control method for motorcycles

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001208236A (en) * 2000-01-27 2001-08-03 Suzuki Motor Corp Control device for solenoid controlled valve
CN1796752A (en) * 2004-12-20 2006-07-05 天津内燃机研究所 Electric control engine of motorcycle of using monofuel LPG
CN102889148A (en) * 2011-07-19 2013-01-23 通用汽车环球科技运作有限责任公司 Methodology to compensate the effect of humidity and altitude on hcci combustion
CN202325907U (en) * 2011-12-09 2012-07-11 重庆长安伟世通发动机控制系统有限公司 Idle speed running air automatic compensation system of automobile engine
CN107664063A (en) * 2016-07-28 2018-02-06 株式会社斯巴鲁 Gas bypass control valve device
CN110056441A (en) * 2018-12-02 2019-07-26 柳州英飞科技有限公司 A kind of control method of automobile engine oil supply system electronic controller
CN110397509A (en) * 2019-07-08 2019-11-01 江苏宗申车业有限公司 A plateau adaptive control method for motorcycles

Similar Documents

Publication Publication Date Title
CA2148164A1 (en) Turbocharger Control Management System
US4823555A (en) System for controlling a compressor of an air conditioner for motor vehicles
US20030019473A1 (en) Method, computer program and control device for operating a vacuum reservoir situated inside an internal combustion engine
US4474154A (en) Idling speed control for internal combustion engines
CN1916388A (en) Learned egr valve position control
CN111895160A (en) Control device and control method for electromagnetic switch valve
KR900700743A (en) Method and apparatus for adjusting air ratio of internal combustion engine during idling and deceleration
CN101377156B (en) Airflow-based crank throttle control in a torque-based system
US5230256A (en) Automatic transmission control system with dual throttles
US4829960A (en) Engine idle control system for internal combustion engine
US4071006A (en) Exhaust gas recirculating system
CN101021185B (en) Method and apparatus for operating impulse charger for transient torque management
JPH0396442A (en) Control method for internal combustion engine
RU2702283C1 (en) Display device
Nakamura et al. Application of microprocessor to cruise-control system
KR20030046695A (en) Hybrid electric vehicle of engine control system
JPH03225038A (en) Driving device for throttle valve
CN109538364A (en) A method of based on Internet of Things remote console speed valve
JPS609420Y2 (en) Ignition timing control device
JPH0217165Y2 (en)
JPH0731423U (en) Air conditioner control device
JPH041324Y2 (en)
JPH0415952Y2 (en)
JPH03279643A (en) Engine controller
CN109236479A (en) A kind of speed regulation device of diesel engine, speed regulating method and screw compressor system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20201106

RJ01 Rejection of invention patent application after publication