CN201816579U - Brake assist system for electric automobile - Google Patents

Brake assist system for electric automobile Download PDF

Info

Publication number
CN201816579U
CN201816579U CN2010205406165U CN201020540616U CN201816579U CN 201816579 U CN201816579 U CN 201816579U CN 2010205406165 U CN2010205406165 U CN 2010205406165U CN 201020540616 U CN201020540616 U CN 201020540616U CN 201816579 U CN201816579 U CN 201816579U
Authority
CN
China
Prior art keywords
controller
pressure sensor
vacuum
aid system
brake force
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.)
Expired - Lifetime
Application number
CN2010205406165U
Other languages
Chinese (zh)
Inventor
王鹏
黄龙辉
张吉强
郭建民
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.)
IAT Automobile Technology Co Ltd
Original Assignee
IAT (CHINA) AUTO 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 IAT (CHINA) AUTO TECHNOLOGY Co Ltd filed Critical IAT (CHINA) AUTO TECHNOLOGY Co Ltd
Priority to CN2010205406165U priority Critical patent/CN201816579U/en
Application granted granted Critical
Publication of CN201816579U publication Critical patent/CN201816579U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Abstract

The utility model provides a brake assist system for an electric automobile, which comprises a vacuum booster (10), a vacuum container (20), an electric vacuum pump (30) and a controller (40), wherein the vacuum booster (10) is connected with the vacuum container (20) through a vacuum pipeline (52), and the vacuum container (20) is connected with the electric vacuum pump (30) through a vacuum pipeline (50); the brake assist system is further provided with a barometric pressure sensor (42); a pressure sensor (12) is arranged on the vacuum booster (10); the barometric pressure sensor (42) and the pressure sensor (12) can be electrically connected with the controller (40); the controller (40) can be electrically connected with the electric vacuum pump (30); and the controller (40) can be used for controlling the open or the close of the electric vacuum pump (30) according to signal difference value between the barometric pressure sensor (42) and the pressure sensor (12). By detecting the pressure of the vacuum booster and the atmospheric pressure, the controller can ensure sufficient vacuity, so that a certain pressure difference existing between the vacuum booster and the environment is caused, a sufficient brake torque of the braking system is ensured, and the safe use of the braking system of an electric automobile is ensured.

Description

The brake force aid system of electronlmobil
Technical field
The utility model relates to the brake force aid system of automobile, relates in particular to the brake force aid system of electronlmobil or hybrid vehicle.
Background technology
Existing automobile has generally been installed the brake force aid system, and the most normal use be the vacuum brake power-assisted.In the existing fuel-engined vehicle, the degree of vacuum of air inlet pipe but in electronlmobil, has been cancelled fuel engines guaranteeing the brake power-assisted when mainly relying on engine operation, makes the brake force aid system that is used for fuel-engined vehicle can't be used for electronlmobil.In order to keep the ripe parts of fuel-engined vehicle brake system to greatest extent, redesigned the brake force aid system that is used for electronlmobil, generally be to vacuumize by an electric vacuum pump, in order to keep degree of vacuum to guarantee brake power-assisted usefulness, need vacuum pump to work always, cause brake force aid system energy consumption big, noise is also big, the vacuum pump work of not stopping work simultaneously, the possibility of et out of order also increases, and causes the major safety risks of electronlmobil.
Summary of the invention
The purpose of this utility model provides a kind of brake force aid system of electronlmobil, cut down the consumption of energy and noise in, guarantee the reliability of brake force aid system.
The utility model provides a kind of brake force aid system of electronlmobil, comprising: vacuum booster, and vacuum reservoir, electric vacuum pump and controller, vacuum booster connects by vacuum pipe between vacuum reservoir and the electric vacuum pump; This brake force aid system also is provided with atmospheric-pressure sensor, described vacuum booster is provided with pressure sensor, atmospheric-pressure sensor and pressure sensor can be electrically connected with controller, controller can be electrically connected with electric vacuum pump, and controller can or cut out according to the unlatching of the difference control electric vacuum pump of the signal of atmospheric-pressure sensor and pressure sensor.
In another schematic embodiment of brake force aid system of electronlmobil, the brake force aid system also is provided with car speed sensor and BK Brake Switch sensor, car speed sensor and BK Brake Switch signal of sensor input controller, controller can control the unlatching of electric vacuum pump in view of the above or cut out.
In the another kind of schematically embodiment of the brake force aid system of electronlmobil, the brake force aid system also is provided with accelerator pedal sensor, the output signal input controller of accelerator pedal sensor, controller can or cut out according to the unlatching of the variation of output signals rate of accelerator pedal sensor control electric vacuum pump.
In also a kind of schematic embodiment of the brake force aid system of electronlmobil, controller wherein is an entire car controller.
Use the brake force aid system of electronlmobil, the energy consumption and the noise of brake force aid system have been reduced effectively by closure or openness electric vacuum pump off and on, simultaneously by the pressure sensor of vacuum booster and the detection of ambient pressure sensor, guarantee that the brake force aid system has enough degree of vacuum, make vacuum booster have certain difference of pressure with respect to environment, guarantee that brake system has enough brake torques, guarantees the safe handling of electronlmobil brake system.
Description of drawings
The following drawings is only done the utility model and is schematically illustrated and explain, does not limit scope of the present utility model:
Fig. 1 is the structural representation of a kind of exemplary embodiment of brake force aid system of electronlmobil;
Fig. 2 is a kind of schematic control flow scheme drawing of the brake force aid system of electronlmobil.
Label declaration
10 vacuum boosters
12 pressure sensors
20 vacuum reservoirs
30 electric vacuum pumps
40 controllers
42 atmospheric-pressure sensor
44 car speed sensors
46 BK Brake Switch sensors
48 accelerator pedal sensors
50,52 vacuum pipes.
The specific embodiment
Understand for technical characterictic, purpose and effect to utility model have more clearly, now contrast the description of drawings specific embodiment of the present utility model, identical label is represented identical part in each figure.
Fig. 1 is the structural representation of a kind of exemplary embodiment of brake force aid system of electronlmobil.As shown in the figure, the brake force aid system of electronlmobil comprises vacuum booster 10, vacuum reservoir 20, and electric vacuum pump 30 and controller 40, vacuum booster 10 connects by vacuum pipe 50,52 between vacuum reservoir 20 and the electric vacuum pump 30; Vacuum booster 10 is provided with pressure sensor 12, and pressure sensor 42 can be electrically connected with controller 40; The brake force aid system also is provided with atmospheric-pressure sensor 42, and atmospheric-pressure sensor 42 can be electrically connected with controller 40; Controller 40 can be electrically connected with electric vacuum pump 30, and controller 40 can be according to the difference of atmospheric-pressure sensor 42 and pressure sensor 12 signals, the unlatching of control electric vacuum pump 30 or close.
As shown in Figure 1, can also comprise car speed sensor 44 and BK Brake Switch sensor 46 in the brake force aid system of electronlmobil, the output signal input controller 40 of car speed sensor 44 and BK Brake Switch sensor 46, controller 40 can be according to the speed of a motor vehicle and braking state, the unlatching of control electric vacuum pump 30 or close.
Can also be provided with accelerator pedal sensor 48 in the brake force aid system of electronlmobil, the output signal input controller 40 of accelerator pedal sensor 48, controller 40 can be according to the rate of changes of accelerator pedal position, the unlatching of control electric vacuum pump 30 or close.In addition, the controller in the brake force aid system of electronlmobil can be entire car controller.
Fig. 2 is a kind of schematic control flow scheme drawing of the brake force aid system of electronlmobil shown in Figure 1.As shown in the figure, start from the system initialization of step S60 for the control of the brake force aid system of electronlmobil, enter step S70 then, judge in step S70 whether atmospheric-pressure sensor, vacuum booster sensor and/or BK Brake Switch break down, if judged result is a "Yes", then enter step S82, open electric vacuum pump, program enters step S90, process ends subsequently; If the S70 judged result is a "No", then enter step S72.
In step S72, judge and whether to have taked brake operation in travelling, if judged result is a "Yes", then program enters step S82, opens electric vacuum pump, program step S90 subsequently, process ends; If the S72 judged result is a "No", then enter step S74.
In step S74, judge whether vehicle is in high-speed travel state, and simultaneously whether the negative rate of change of Das Gaspedal if judged result be "Yes", then enters step S82 less than-2%, opens electric vacuum pump, program enters step S90, process ends subsequently; If the S74 judged result is a "No", then program enters step S76.In a kind of exemplary embodiment of brake force aid system of electronlmobil,, average ground speed is judged to be high-speed travel state when surpassing 60km/h.The brake force aid system that it will be understood by those skilled in the art that electronlmobil can judge that the chaufeur needs slide still decelerating mode according to the rate of change of throttle.
In step S76, judge whether the difference of pressure in bar pressure and the vacuum booster meets the demands, if judged result is a "Yes", then enter step S80, close electric vacuum pump, program enters step S90, process ends subsequently; If the S74 judged result is a "No", then enter step S82, open electric vacuum pump, program enters step S90, process ends subsequently.
Use the brake force aid system of electronlmobil, reduced the energy consumption and the noise of brake force aid system effectively, guarantee that simultaneously brake system has enough brake torques, guarantees the safe handling of electronlmobil brake system.
Be to be understood that, though this specification sheets is described according to embodiment, but be not that an embodiment only comprises an independently technical scheme, this narrating mode of specification sheets only is for clarity sake, those skilled in the art should make specification sheets as a whole, technical scheme among the embodiment also can form other embodiments that it will be appreciated by those skilled in the art that through appropriate change.
Above listed a series of detailed description only is specifying at feasibility embodiment of the present utility model; they are not in order to limiting protection domain of the present utility model, allly do not break away from equivalent embodiment or the change that the utility model skill spirit done and all should be included within the protection domain of the present utility model.

Claims (4)

1. the brake force aid system of electronlmobil, comprise: vacuum booster (10), vacuum reservoir (20), electric vacuum pump (30) and controller (40), connect by vacuum pipe (50,52) between described vacuum booster (10), described vacuum reservoir (20) and the described electric vacuum pump (30); It is characterized in that:
Described brake force aid system also is provided with atmospheric-pressure sensor (42), described vacuum booster (10) is provided with pressure sensor (12), described atmospheric-pressure sensor (42) and described pressure sensor (12) can be electrically connected with described controller (40), described controller (40) can be electrically connected with described electric vacuum pump (30), and described controller (40) can control the unlatching of described electric vacuum pump (30) or cuts out according to the difference of the signal of described atmospheric-pressure sensor (42) and described pressure sensor (30).
2. brake force aid system as claimed in claim 1, wherein said brake force aid system also is provided with car speed sensor (44) and BK Brake Switch sensor (46), the output signal of described car speed sensor (44) and described BK Brake Switch sensor (46) is imported described controller (40), and described controller (40) can control the unlatching of described electric vacuum pump (30) in view of the above or cut out.
3. brake force aid system as claimed in claim 1 or 2, wherein said brake force aid system also is provided with accelerator pedal sensor (48), the output signal of described accelerator pedal sensor (48) is imported described controller (40), and described controller (40) can control the unlatching of described electric vacuum pump (30) or cuts out according to the variation of output signals rate of described accelerator pedal sensor (48).
4. brake force aid system as claimed in claim 1, wherein said controller (40) is an entire car controller.
CN2010205406165U 2010-09-25 2010-09-25 Brake assist system for electric automobile Expired - Lifetime CN201816579U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010205406165U CN201816579U (en) 2010-09-25 2010-09-25 Brake assist system for electric automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010205406165U CN201816579U (en) 2010-09-25 2010-09-25 Brake assist system for electric automobile

Publications (1)

Publication Number Publication Date
CN201816579U true CN201816579U (en) 2011-05-04

Family

ID=43914543

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010205406165U Expired - Lifetime CN201816579U (en) 2010-09-25 2010-09-25 Brake assist system for electric automobile

Country Status (1)

Country Link
CN (1) CN201816579U (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102381302A (en) * 2011-08-23 2012-03-21 重庆小康工业集团股份有限公司 Analog-to-digital electric vacuum assistance system and air pressure control method
CN102806900A (en) * 2012-08-16 2012-12-05 安徽江淮汽车股份有限公司 Vacuum assist brake controller for electric automobile
GB2492404A (en) * 2011-07-01 2013-01-02 Land Rover Uk Ltd Ambient pressure dependent electric vacuum pump control for brake booster
CN103158690A (en) * 2011-12-16 2013-06-19 北汽福田汽车股份有限公司 Control method of electric braking vacuum pump
CN103693033A (en) * 2012-09-27 2014-04-02 北汽福田汽车股份有限公司 Vacuum boosting system, electric vehicle and vacuum boosting control method
CN103723137A (en) * 2013-12-30 2014-04-16 重庆长安铃木汽车有限公司 Brake assisting power control method for electric vehicle
CN104149766A (en) * 2014-07-31 2014-11-19 广汽菲亚特汽车有限公司 Working condition based method and device for adjusting electronic vacuum pumps of automobile brake system
CN104828051A (en) * 2014-05-22 2015-08-12 北汽福田汽车股份有限公司 Vacuum boosting control system of hybrid electric vehicle, and control method of vacuum boosting control system of hybrid electric vehicle
CN104842988A (en) * 2014-05-23 2015-08-19 北汽福田汽车股份有限公司 Method and system for controlling switching-on threshold value and switching-off threshold value of brake vacuum pump
CN106080565A (en) * 2016-07-06 2016-11-09 北京长安汽车工程技术研究有限责任公司 The control method of a kind of pure electric vehicle vacuum boost system and device
CN107433940A (en) * 2016-05-26 2017-12-05 长城汽车股份有限公司 For manipulating the method, apparatus and system of electrovacuum pump
CN107444196A (en) * 2017-09-05 2017-12-08 重庆凯瑞电动汽车系统有限公司 Electric automobile with vacuum pump control system
CN107776561A (en) * 2017-10-23 2018-03-09 奇瑞汽车股份有限公司 A kind of vacuum braking control method
CN109484387A (en) * 2018-12-19 2019-03-19 安徽江淮汽车集团股份有限公司 A kind of control method and system of vacuum pump of electric automobile
CN111731246A (en) * 2020-06-12 2020-10-02 中国重汽集团济南动力有限公司 Air compressor control system and method based on altitude self-adaption

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2492404A (en) * 2011-07-01 2013-01-02 Land Rover Uk Ltd Ambient pressure dependent electric vacuum pump control for brake booster
GB2492404B (en) * 2011-07-01 2014-03-12 Jaguar Land Rover Ltd Method of controlling vacuum pump for vehicle brake booster
US9593680B2 (en) 2011-07-01 2017-03-14 Jaguar Land Rover Limited Method of controlling vacuum pump for vehicle brake booster
CN102381302A (en) * 2011-08-23 2012-03-21 重庆小康工业集团股份有限公司 Analog-to-digital electric vacuum assistance system and air pressure control method
CN102381302B (en) * 2011-08-23 2014-05-28 重庆小康工业集团股份有限公司 Analog-to-digital electric vacuum assistance system and air pressure control method
CN103158690B (en) * 2011-12-16 2015-01-14 北汽福田汽车股份有限公司 Control method of electric braking vacuum pump
CN103158690A (en) * 2011-12-16 2013-06-19 北汽福田汽车股份有限公司 Control method of electric braking vacuum pump
CN102806900A (en) * 2012-08-16 2012-12-05 安徽江淮汽车股份有限公司 Vacuum assist brake controller for electric automobile
CN102806900B (en) * 2012-08-16 2014-09-24 安徽江淮汽车股份有限公司 Vacuum assist brake controller for electric automobile
CN103693033A (en) * 2012-09-27 2014-04-02 北汽福田汽车股份有限公司 Vacuum boosting system, electric vehicle and vacuum boosting control method
CN103723137A (en) * 2013-12-30 2014-04-16 重庆长安铃木汽车有限公司 Brake assisting power control method for electric vehicle
CN104828051A (en) * 2014-05-22 2015-08-12 北汽福田汽车股份有限公司 Vacuum boosting control system of hybrid electric vehicle, and control method of vacuum boosting control system of hybrid electric vehicle
CN104828051B (en) * 2014-05-22 2018-01-19 北汽福田汽车股份有限公司 The vacuum servo control system and its control method of hybrid vehicle
CN104842988A (en) * 2014-05-23 2015-08-19 北汽福田汽车股份有限公司 Method and system for controlling switching-on threshold value and switching-off threshold value of brake vacuum pump
CN104842988B (en) * 2014-05-23 2018-01-19 北汽福田汽车股份有限公司 A kind of brake vacuum pump opens threshold value and closes the control method and system of threshold value
CN104149766A (en) * 2014-07-31 2014-11-19 广汽菲亚特汽车有限公司 Working condition based method and device for adjusting electronic vacuum pumps of automobile brake system
CN107433940A (en) * 2016-05-26 2017-12-05 长城汽车股份有限公司 For manipulating the method, apparatus and system of electrovacuum pump
CN106080565A (en) * 2016-07-06 2016-11-09 北京长安汽车工程技术研究有限责任公司 The control method of a kind of pure electric vehicle vacuum boost system and device
CN107444196A (en) * 2017-09-05 2017-12-08 重庆凯瑞电动汽车系统有限公司 Electric automobile with vacuum pump control system
CN107776561A (en) * 2017-10-23 2018-03-09 奇瑞汽车股份有限公司 A kind of vacuum braking control method
CN109484387A (en) * 2018-12-19 2019-03-19 安徽江淮汽车集团股份有限公司 A kind of control method and system of vacuum pump of electric automobile
CN111731246A (en) * 2020-06-12 2020-10-02 中国重汽集团济南动力有限公司 Air compressor control system and method based on altitude self-adaption

Similar Documents

Publication Publication Date Title
CN201816579U (en) Brake assist system for electric automobile
CN101537831B (en) Control method of automobile electric control parking and start assisting by manual transmission and system thereof
CN103359100B (en) A kind of Automobile brake control system and control method
CN101683849B (en) Braking vacuum servo force system and braking vacuum servo force control method
CN105128859B (en) A kind of the flame-out of engine start stop system is prevented slipping by slope protection control method
CN201932147U (en) Vacuum power assisting device for electric automobile
CN107444196A (en) Electric automobile with vacuum pump control system
CN201415674Y (en) Manual electrical-controlled parking and auxiliary starting control system for variable-speed automobile
CN103303292A (en) Integrated electronic hydraulic brake system
CN203344935U (en) Automotive active safety system
CN106891874A (en) A kind of vehicle automatic emergency brake system based on ABS/ASR
CN206307025U (en) A kind of pure electric coach vacuum-assisted brake control device
CN101767580B (en) Brake vacuum assist system and brake vacuum assist method of hybrid power automobile
CN203110908U (en) Oil-liquid hybrid power system
CN202574212U (en) Multifunctional fixed-speed cruising system
CN103386958B (en) Rear axle braking device, axle braking system and method as well as vehicle
CN205469032U (en) Pure electric vehicles's vacuum servo auxiliary system
CN103253255B (en) A kind of attached vacuum booster brake device
CN202071829U (en) Automatic braking improvement device in case of wrong stepping on accelerator
CN205562176U (en) Electronic helping hand braking test rack
CN201970987U (en) Vacuum-assisted brake assist
CN201800701U (en) Electronic brake system based on FlexRay bus
CN201914235U (en) Intelligent auxiliary brake control system
CN204870982U (en) Automatically controlled parking device of car
CN206749770U (en) A kind of vehicle automatic emergency brake system based on ABS/ASR

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: Tianjin IAT Automobile Technology Co., Ltd.

Assignor: IAT (China) Auto Technology Co., Ltd.

Contract record no.: 2011990000818

Denomination of utility model: Brake assist system for electric automobile

Granted publication date: 20110504

License type: Exclusive License

Record date: 20110825

PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Brake assist system for electric automobile

Effective date of registration: 20111114

Granted publication date: 20110504

Pledgee: Pudong Development Bank of Shanghai, Limited by Share Ltd, Beijing branch

Pledgor: IAT (China) Auto Technology Co., Ltd.

Registration number: 2011990000434

C56 Change in the name or address of the patentee

Owner name: IAT AUTOMOBILE TECHNOLOGY CO., LTD.

Free format text: FORMER NAME: IAT (CHINA) AUTOMOBILE TECHNOLOGY CO., LTD.

CP01 Change in the name or title of a patent holder

Address after: 100076 Beijing City Shuangyang East Industrial Zone Daxing District Yizhuang Road No. 8

Patentee after: IAT Automobile Technology Co., Ltd.

Address before: 100076 Beijing City Shuangyang East Industrial Zone Daxing District Yizhuang Road No. 8

Patentee before: IAT (China) Auto Technology Co., Ltd.

PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20121221

Granted publication date: 20110504

Pledgee: Pudong Development Bank of Shanghai, Limited by Share Ltd, Beijing branch

Pledgor: IAT Automobile Technology Co., Ltd.

Registration number: 2011990000434

PLDC Enforcement, change and cancellation of contracts on pledge of patent right or utility model
PM01 Change of the registration of the contract for pledge of patent right

Change date: 20121221

Registration number: 2011990000434

Pledgor after: IAT Automobile Technology Co., Ltd.

Pledgor before: IAT (China) Auto Technology Co., Ltd.

PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Brake assist system for electric automobile

Effective date of registration: 20130105

Granted publication date: 20110504

Pledgee: Pudong Development Bank of Shanghai, Limited by Share Ltd, Beijing branch

Pledgor: IAT Automobile Technology Co., Ltd.

Registration number: 2013990000009

PLDC Enforcement, change and cancellation of contracts on pledge of patent right or utility model
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20140402

Granted publication date: 20110504

Pledgee: Pudong Development Bank of Shanghai, Limited by Share Ltd, Beijing branch

Pledgor: IAT Automobile Technology Co., Ltd.

Registration number: 2013990000009

PLDC Enforcement, change and cancellation of contracts on pledge of patent right or utility model
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Brake assist system for electric automobile

Effective date of registration: 20140425

Granted publication date: 20110504

Pledgee: Pudong Development Bank of Shanghai, Limited by Share Ltd, Beijing branch

Pledgor: IAT Automobile Technology Co., Ltd.

Registration number: 2014990000298

PLDC Enforcement, change and cancellation of contracts on pledge of patent right or utility model
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20150519

Granted publication date: 20110504

Pledgee: Pudong Development Bank of Shanghai, Limited by Share Ltd, Beijing branch

Pledgor: IAT Automobile Technology Co., Ltd.

Registration number: 2014990000298

PLDC Enforcement, change and cancellation of contracts on pledge of patent right or utility model
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Brake assist system for electric automobile

Effective date of registration: 20150630

Granted publication date: 20110504

Pledgee: Pudong Development Bank of Shanghai, Limited by Share Ltd, Beijing branch

Pledgor: IAT Automobile Technology Co., Ltd.

Registration number: 2015990000518

PLDC Enforcement, change and cancellation of contracts on pledge of patent right or utility model
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20161103

Granted publication date: 20110504

Pledgee: Pudong Development Bank of Shanghai, Limited by Share Ltd, Beijing branch

Pledgor: IAT Automobile Technology Co., Ltd.

Registration number: 2015990000518

PLDC Enforcement, change and cancellation of contracts on pledge of patent right or utility model
CX01 Expiry of patent term

Granted publication date: 20110504

CX01 Expiry of patent term