CN105620292A - Vehicle high-pressure power supply control system and method - Google Patents
Vehicle high-pressure power supply control system and method Download PDFInfo
- Publication number
- CN105620292A CN105620292A CN201610045122.1A CN201610045122A CN105620292A CN 105620292 A CN105620292 A CN 105620292A CN 201610045122 A CN201610045122 A CN 201610045122A CN 105620292 A CN105620292 A CN 105620292A
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- contact device
- high voltage
- voltage supply
- outfan
- entire car
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
Abstract
The invention provides a vehicle high-pressure power supply control system and a method. The system comprises a current detecting element, an anode contactor, a cathode contactor, a precharging contactor, a precharging resistor, a protection capacitor and a whole vehicle controller. In electrification, the whole vehicle controller controls the cathode contactor and the precharging contactor to close to charge the precharging resistor and the protection capacitor; and when a current value of high-pressure power supply is higher than or equal to a first threshold, the anode contactor is closed. In power failure, when the current value of high-pressure power supply is lower than or equal to a second threshold, the whole vehicle controller controls the cathode contactor to be cut off. When the contactors are closed and cut off, the system can solve the problem of burn down of the contactors or explosion accidents caused by high current, and improves the safety of a vehicle electric system.
Description
Technical field
The present invention relates to automobile high voltage supply field, be specifically related to the control system and method for a kind of automobile high voltage supply.
Background technology
In order to ensure the use safety of electric automobile, existing electric automobile often uses catalyst and fuse in high voltage supply loop. When vehicle powers on, associated contact device adhesive, set of cells is powered to car load high-voltage load; When lower electricity, associated contact device disconnects, thus disconnecting set of cells external loading, simultaneously when crossing stream or short circuit, by fuse cutoff high current supply circuit. In actual use, there is some defects and problem in this high voltage supply loop. Such as: close moment at catalyst, excessive electric current may result in the contact generation ablation of catalyst. Disconnecting moment at catalyst, the contact of catalyst can produce electric arc, the contact point of catalyst is produced damage, affects the life-span of catalyst, and if electric current sufficiently large, it is possible to the blast of catalyst can be caused. Meanwhile, when overcurrent occurs in car load high voltage supply loop, if normally fusing or fusing do not require time for oversize fuse, it is possible to cause the infringement of high pressure components and parts. In vehicle travel process, once there is the situation of collision or other influences personal safety, in order to ensure that set of cells is externally without High voltage output, entire car controller can disconnect catalyst. If but have occurred and that short circuit, and fuse is but without being able to do in time fusing, now disconnects catalyst and is likely to result in the serious ablation of catalyst and even explodes. Therefore how to efficiently control high voltage supply loop, be still to ensure that the important topic of auto electric safety.
Summary of the invention
The present invention provides the control system and method for a kind of automobile high voltage supply, when solving catalyst closed and disconnected, because super-high-current causes catalyst to burn or the problem of explosion accident, improves the safety of automotive electrical system.
For realizing object above, the present invention provides techniques below scheme:
A kind of control system of automobile high voltage supply, wherein, including: current measuring element, positive contact device, cathode contact device, preliminary filling catalyst, preliminary filling resistance, protection electric capacity and entire car controller;
The described input of positive contact device is connected with the positive pole of set of cells, the outfan of described positive contact device is connected with the cathode output end of car load high voltage supply, the outfan of described preliminary filling resistance and one end of described protection electric capacity respectively, and the end that controls of described positive contact device is connected with the first outfan of described entire car controller;
The input of described cathode contact device is connected with the first outfan of described current measuring element, the outfan of described cathode contact device is connected with the other end of the cathode output end of car load high voltage supply and described protection electric capacity respectively, and the end that controls of described cathode contact device is connected with the second outfan of described entire car controller;
The input of described current measuring element is connected with the negative pole of set of cells, and the second outfan of described current measuring element is connected with the input of described entire car controller;
The described input of preliminary filling catalyst is connected with the positive pole of set of cells, and the outfan of described preliminary filling catalyst is connected with the input of described preliminary filling resistance, and the end that controls of described preliminary filling catalyst is connected with the 3rd outfan of described entire car controller;
Described current measuring element is used for detecting high voltage supply electric current;
When powering on, second outfan of described entire car controller and the 3rd outfan output high level of described entire car controller, when the current value of described high voltage supply is greatly equal to first threshold, first outfan output high level of described entire car controller, and the 3rd outfan output low level of described entire car controller;
During lower electricity, current value at described high voltage supply little equal to Second Threshold time, the first outfan of described entire car controller and described entire car controller the second outfan output low level.
Preferably, when the current value of described high voltage supply is more than three threshold values, the first outfan of described entire car controller and the second outfan of described entire car controller export high level, and described entire car controller reports short trouble.
Preferably, when the current value of described high voltage supply is more than the 4th threshold value and less than three threshold values, first outfan of described entire car controller and the second outfan output low level of described entire car controller, described entire car controller reports over current fault, and records overcurrent value and cross stream number of times.
Preferably, also including fuse, one end of described fuse is connected with the positive pole of set of cells, and the other end of described fuse is connected with the input of described positive contact device.
The present invention also provides for the control method of a kind of automobile high voltage supply, wherein, and including:
Obtain high voltage supply electric current;
Obtain the control signal of the control signal of positive contact device, the control signal of cathode contact device and preliminary filling catalyst;
When powering on, the control signal of described cathode contact device and the control signal output high level of described preliminary filling catalyst, when the value of described high voltage supply electric current is greatly equal to first threshold, the control signal output high level of described positive contact device, and the control signal output low level of described preliminary filling catalyst;
During lower electricity, value at described high voltage supply electric current little equal to Second Threshold time, the control signal of described positive contact device and the control signal output low level of described cathode contact device.
Preferably, when the value of described high voltage supply electric current is more than three threshold values, the control signal of described positive contact device and the control signal of described cathode contact device export high level, and entire car controller reports short trouble.
Preferably, when the value of described high voltage supply electric current is more than the 4th threshold value and less than three threshold values, the control signal of described positive contact device and the control signal output low level of described cathode contact device, and described entire car controller reports over current fault, and record overcurrent value and cross stream number of times.
Preferably, the control signal of described positive contact device controls the folding of positive contact device, and the control signal of described cathode contact device controls the folding of cathode contact device, and the control signal of described preliminary filling catalyst controls the folding of preliminary filling catalyst.
Visible; the control system and method for a kind of automobile high voltage supply provided by the invention; adopt precharging circuit and protection electric capacity that the catalyst of automobile high voltage supply is protected; when effectively solving catalyst closed and disconnected; because super-high-current causes catalyst to burn or the problem of explosion accident, improve the safety of automotive electrical system.
Accompanying drawing explanation
In order to be illustrated more clearly that specific embodiments of the invention, the accompanying drawing used required in embodiment will be briefly described below.
Fig. 1: be the Control system architecture schematic diagram of a kind of automobile high voltage supply provided by the invention;
Fig. 2: be the control structure schematic diagram of a kind of automobile high voltage supply that the embodiment of the present invention provides;
Accompanying drawing labelling
1 positive contact device
2 preliminary filling catalysts
3 cathode contact devices
4 current sensors
5 preliminary filling resistance
6 electrokinetic cell input cathode output ends
7 electrokinetic cell input cathode output ends
8 car load High voltage output cathode output ends
9 car load High voltage output cathode output ends
Detailed description of the invention
In order to make those skilled in the art be more fully understood that the scheme of the embodiment of the present invention, below in conjunction with drawings and embodiments, the embodiment of the present invention is described in further detail.
During the catalyst closed and disconnected powered for existing electric automobile high-voltage; often because super-high-current causes catalyst to burn or the problem of explosion accident; the present invention provides the control system and method for a kind of automobile high voltage supply; by preliminary filling loop and protection electric capacity; reduce the electric current during catalyst closed and disconnected of high voltage supply loop; complete the protection to catalyst, improve the safety of automotive electrical system.
As it is shown in figure 1, be the Control system architecture schematic diagram of a kind of automobile high voltage supply provided by the invention. This system includes: current measuring element, positive contact device, cathode contact device, preliminary filling catalyst, preliminary filling resistance R, protection electric capacity C and entire car controller.
The described input of positive contact device is connected with the positive pole of set of cells; the outfan of described positive contact device is connected with the cathode output end of car load high voltage supply, the outfan of described preliminary filling resistance R and one end of described protection electric capacity C respectively, and the end that controls of described positive contact device is connected with the first outfan of described entire car controller. The input of described cathode contact device is connected with the first outfan of described current measuring element; the outfan of described cathode contact device is connected with the other end of the cathode output end of car load high voltage supply and described protection electric capacity C respectively, and the end that controls of described cathode contact device is connected with the second outfan of described entire car controller. The input of described current measuring element is connected with the negative pole of set of cells, and the second outfan of described current measuring element is connected with the input of described entire car controller. The described input of preliminary filling catalyst is connected with the positive pole of set of cells, and the outfan of described preliminary filling catalyst is connected with the input of described preliminary filling resistance R, and the end that controls of described preliminary filling catalyst is connected with the 3rd outfan of described entire car controller. Described current measuring element is used for detecting high voltage supply electric current.
When powering on, second outfan of described entire car controller and the 3rd outfan output high level of described entire car controller, when the current value of described high voltage supply is greatly equal to first threshold, first outfan output high level of described entire car controller, and the 3rd outfan output low level of described entire car controller. During lower electricity, current value at described high voltage supply little equal to Second Threshold time, the first outfan of described entire car controller and described entire car controller the second outfan output low level.
In actual applications, described current measuring element can adopt current sensor that the electric current in high voltage supply loop is detected, it is also possible to is combined, by current sensor and battery controller, the detection realized electric current. Owing to the electric current in high voltage supply loop is relatively big, when selecting, should be noted range, the present embodiment adopts the range of more than 1500A. Similarly, protection electric capacity needs to accept the charging process of high-tension current in the loop, the electric capacity of the 1000 �� F that the present embodiment adopts.
Specifically, as in figure 2 it is shown, the control structure schematic diagram of a kind of automobile high voltage supply provided for the embodiment of the present invention. This system includes: positive contact device 1, preliminary filling catalyst 2, cathode contact device 3, current sensor 4, preliminary filling resistance 5, electrokinetic cell input cathode output end 6, electrokinetic cell input cathode output end 7, car load High voltage output cathode output end 8, car load High voltage output cathode output end 9, entire car controller and battery controller. In this embodiment, described battery controller is by current sensor monitoring car load high tension loop electric current, and by CAN communication loop, current value is sent to entire car controller.
When powering on, by closing cathode contact device 3, preliminary filling catalyst 2 to the charging of electric machine controller internal capacitance, owing to preliminary filling loop having preliminary filling resistance 5, it is possible to by current reduction. When avoiding directly closing positive contact device 1, cathode contact device 3 in this way, the peak point current damage to catalyst occurs; when capacitance voltage reaches the 90% or more than 95% of set of cells output voltage; Guan Bi positive contact device 1; now owing to catalyst both end voltage difference is only small; substantially without producing obvious dash current, thus playing the effect of protection catalyst.
During lower electricity, current sensor 4 is powered by battery controller. After high tension loop electric current is less than setting value, entire car controller disconnect positive contact device 1 and cathode contact device 3. Avoid electricity under direct band load, make the damage of contacts of contactor.
Further, when the current value of described high voltage supply is more than three threshold values, the first outfan of described entire car controller and the second outfan of described entire car controller export high level, and described entire car controller reports short trouble.
Specifically, when current sensor 4 detects the short-circuit threshold values that discharge current exceedes setting, entire car controller is judged to short trouble, when short circuit, entire car controller keeps in touch device and is in closure state, until fuse blows, the position of fuse both may be mounted at inside service switch, other positions of high tension loop can also be connected on, need to determine with side circuit.
Further, when the current value of described high voltage supply is more than the 4th threshold value and less than three threshold values, first outfan of described entire car controller and the second outfan output low level of described entire car controller, described entire car controller reports over current fault, and records overcurrent value and cross stream number of times.
Specifically, when current sensor 4 detects the excess flow valve value that discharge current exceedes setting, entire car controller is judged to over current fault, and by fault information reporting. When crossing stream, entire car controller disconnects positive contact device 1 and cathode contact device 3, it is ensured that set of cells is externally without High voltage output. Ensure the safety of electrokinetic cell and car load electric current when being disconnected by entire car controller record catalyst, in order to assess the damaged condition of catalyst.
Further, this system also includes fuse, and one end of described fuse is connected with the positive pole of set of cells, and the other end of described fuse is connected with the input of described positive contact device.
In actual applications, often occur that, when fuse is also unblown, catalyst just disconnects, and this situation easily causes explosion accident, therefore controls for the folding of catalyst, need to adapt with the material of fuse.
Visible; the present invention provides the control system of a kind of automobile high voltage supply; by preliminary filling loop and protection electric capacity, the catalyst of automobile high voltage supply is protected; when effectively solving catalyst closed and disconnected; because super-high-current causes catalyst to burn or the problem of explosion accident, improve the safety of automotive electrical system.
The present invention also provides for the control method of a kind of automobile high voltage supply, including: obtain high voltage supply electric current; Obtain the control signal of the control signal of positive contact device, the control signal of cathode contact device and preliminary filling catalyst;
When powering on, the control signal of described cathode contact device and the control signal output high level of described preliminary filling catalyst, when the value of described high voltage supply electric current is greatly equal to first threshold, the control signal output high level of described positive contact device, and the control signal output low level of described preliminary filling catalyst; During lower electricity, value at described high voltage supply electric current little equal to Second Threshold time, the control signal of described positive contact device and the control signal output low level of described cathode contact device.
In actual applications, entire car controller can be passed through and obtain the control signal of the control signal of positive contact device, the control signal of cathode contact device and preliminary filling catalyst, simultaneously, it is possible to by entire car controller, the value of described high voltage supply electric current is judged, and reporting fault information.
Further, when the value of described high voltage supply electric current is more than three threshold values, the control signal of described positive contact device and the control signal of described cathode contact device export high level, and entire car controller reports short trouble.
Further, when the value of described high voltage supply electric current is more than the 4th threshold value and less than three threshold values, the control signal of described positive contact device and the control signal output low level of described cathode contact device, and described entire car controller reports over current fault, and record overcurrent value and cross stream number of times.
Further, the control signal of described positive contact device controls the folding of positive contact device, and the control signal of described cathode contact device controls the folding of cathode contact device, and the control signal of described preliminary filling catalyst controls the folding of preliminary filling catalyst.
Visible, the present invention provides the control method of a kind of automobile high voltage supply, by the current detecting to high voltage supply, the break-make in high voltage supply loop is controlled by the control signal of catalyst, when can effectively solve catalyst closed and disconnected, because super-high-current causes catalyst to burn or the problem of explosion accident, improve the safety of automotive electrical system.
The structure of the present invention, feature and action effect is described in detail above according to diagrammatically shown embodiment; the foregoing is only presently preferred embodiments of the present invention; but the present invention is not to limit practical range shown in drawing; every change made according to the conception of the present invention; or it is revised as the Equivalent embodiments of equivalent variations; still without departing from description with diagram contain spiritual time, all should in protection scope of the present invention.
Claims (8)
1. the control system of an automobile high voltage supply, it is characterised in that including: current measuring element, positive contact device, cathode contact device, preliminary filling catalyst, preliminary filling resistance, protection electric capacity and entire car controller;
The described input of positive contact device is connected with the positive pole of set of cells, the outfan of described positive contact device is connected with the cathode output end of car load high voltage supply, the outfan of described preliminary filling resistance and one end of described protection electric capacity respectively, and the end that controls of described positive contact device is connected with the first outfan of described entire car controller;
The input of described cathode contact device is connected with the first outfan of described current measuring element, the outfan of described cathode contact device is connected with the other end of the cathode output end of car load high voltage supply and described protection electric capacity respectively, and the end that controls of described cathode contact device is connected with the second outfan of described entire car controller;
The input of described current measuring element is connected with the negative pole of set of cells, and the second outfan of described current measuring element is connected with the input of described entire car controller;
The described input of preliminary filling catalyst is connected with the positive pole of set of cells, and the outfan of described preliminary filling catalyst is connected with the input of described preliminary filling resistance, and the end that controls of described preliminary filling catalyst is connected with the 3rd outfan of described entire car controller;
Described current measuring element is used for detecting high voltage supply electric current;
When powering on, second outfan of described entire car controller and the 3rd outfan output high level of described entire car controller, when the current value of described high voltage supply is greatly equal to first threshold, first outfan output high level of described entire car controller, and the 3rd outfan output low level of described entire car controller;
During lower electricity, current value at described high voltage supply little equal to Second Threshold time, the first outfan of described entire car controller and described entire car controller the second outfan output low level.
2. the control system of automobile high voltage supply according to claim 1, it is characterized in that, when the current value of described high voltage supply is more than three threshold values, first outfan of described entire car controller and the second outfan of described entire car controller export high level, and described entire car controller reports short trouble.
3. the control system of automobile high voltage supply according to claim 1, it is characterized in that, when the current value of described high voltage supply is more than the 4th threshold value and less than three threshold values, first outfan of described entire car controller and the second outfan output low level of described entire car controller, described entire car controller reports over current fault, and records overcurrent value and cross stream number of times.
4. the control system of the automobile high voltage supply according to any one of claims 1 to 3, it is characterized in that, also including fuse, one end of described fuse is connected with the positive pole of set of cells, and the other end of described fuse is connected with the input of described positive contact device.
5. the control method of an automobile high voltage supply, it is characterised in that including:
Obtain high voltage supply electric current;
Obtain the control signal of the control signal of positive contact device, the control signal of cathode contact device and preliminary filling catalyst;
When powering on, the control signal of described cathode contact device and the control signal output high level of described preliminary filling catalyst, when the value of described high voltage supply electric current is greatly equal to first threshold, the control signal output high level of described positive contact device, and the control signal output low level of described preliminary filling catalyst;
During lower electricity, value at described high voltage supply electric current little equal to Second Threshold time, the control signal of described positive contact device and the control signal output low level of described cathode contact device.
6. the control method of automobile high voltage supply according to claim 5, it is characterized in that, when the value of described high voltage supply electric current is more than three threshold values, the control signal of described positive contact device and the control signal of described cathode contact device export high level, and entire car controller reports short trouble.
7. the control method of automobile high voltage supply according to claim 5, it is characterized in that, when the value of described high voltage supply electric current is more than the 4th threshold value and less than three threshold values, the control signal of described positive contact device and the control signal output low level of described cathode contact device, and described entire car controller reports over current fault, and record overcurrent value and cross stream number of times.
8. the control method of the automobile high voltage supply according to any one of claim 5 to 7, it is characterized in that, the control signal of described positive contact device controls the folding of positive contact device, the control signal of described cathode contact device controls the folding of cathode contact device, and the control signal of described preliminary filling catalyst controls the folding of preliminary filling catalyst.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610045122.1A CN105620292B (en) | 2016-01-22 | 2016-01-22 | A kind of control system and method for automobile high voltage supply |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610045122.1A CN105620292B (en) | 2016-01-22 | 2016-01-22 | A kind of control system and method for automobile high voltage supply |
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| CN105620292B CN105620292B (en) | 2017-12-12 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451370A (en) * | 2016-10-27 | 2017-02-22 | 中国北方车辆研究所 | On-load disjunction control method for high-voltage contactor |
| CN108736452A (en) * | 2018-05-02 | 2018-11-02 | 深圳市欣旺达综合能源服务有限公司 | Circuit is protected in the anti-emptying of self-powered of battery energy storage system |
| CN109624786A (en) * | 2018-12-29 | 2019-04-16 | 蜂巢能源科技有限公司 | Power battery preliminary filling resistance protection control method |
| CN109823285A (en) * | 2017-11-20 | 2019-05-31 | 河南森源重工有限公司 | Electric system, power-on and power-off control method and control system above and below electric automobile high-voltage |
| CN112630507A (en) * | 2018-09-17 | 2021-04-09 | 宁德时代新能源科技股份有限公司 | Control method, controller and medium for power failure detection circuit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101888939A (en) * | 2007-10-05 | 2010-11-17 | 罗伯特.博世有限公司 | Method and apparatus for limiting the switch-on current and for discharging the DC voltage intermediate circuit |
| WO2011121053A1 (en) * | 2010-03-30 | 2011-10-06 | Continental Automotive Gmbh | On-board supply system for a vehicle, and control device for controlling a current flow in an on-board supply system of a vehicle |
| CN203401978U (en) * | 2013-07-25 | 2014-01-22 | 北汽福田汽车股份有限公司 | Electric vehicle high-voltage load charge and discharge safety circuit |
| CN103879291A (en) * | 2012-12-20 | 2014-06-25 | 北汽福田汽车股份有限公司 | Vehicle safety device |
| CN104827911A (en) * | 2014-07-28 | 2015-08-12 | 北汽福田汽车股份有限公司 | Discharging circuit and method for electric automobile |
| CN105102260A (en) * | 2013-05-17 | 2015-11-25 | 奥迪股份公司 | Precharging a motor vehicle high-voltage network |
-
2016
- 2016-01-22 CN CN201610045122.1A patent/CN105620292B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101888939A (en) * | 2007-10-05 | 2010-11-17 | 罗伯特.博世有限公司 | Method and apparatus for limiting the switch-on current and for discharging the DC voltage intermediate circuit |
| WO2011121053A1 (en) * | 2010-03-30 | 2011-10-06 | Continental Automotive Gmbh | On-board supply system for a vehicle, and control device for controlling a current flow in an on-board supply system of a vehicle |
| CN103879291A (en) * | 2012-12-20 | 2014-06-25 | 北汽福田汽车股份有限公司 | Vehicle safety device |
| CN105102260A (en) * | 2013-05-17 | 2015-11-25 | 奥迪股份公司 | Precharging a motor vehicle high-voltage network |
| CN203401978U (en) * | 2013-07-25 | 2014-01-22 | 北汽福田汽车股份有限公司 | Electric vehicle high-voltage load charge and discharge safety circuit |
| CN104827911A (en) * | 2014-07-28 | 2015-08-12 | 北汽福田汽车股份有限公司 | Discharging circuit and method for electric automobile |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451370A (en) * | 2016-10-27 | 2017-02-22 | 中国北方车辆研究所 | On-load disjunction control method for high-voltage contactor |
| CN109823285A (en) * | 2017-11-20 | 2019-05-31 | 河南森源重工有限公司 | Electric system, power-on and power-off control method and control system above and below electric automobile high-voltage |
| CN108736452A (en) * | 2018-05-02 | 2018-11-02 | 深圳市欣旺达综合能源服务有限公司 | Circuit is protected in the anti-emptying of self-powered of battery energy storage system |
| CN112630507A (en) * | 2018-09-17 | 2021-04-09 | 宁德时代新能源科技股份有限公司 | Control method, controller and medium for power failure detection circuit |
| US11656672B2 (en) | 2018-09-17 | 2023-05-23 | Contemporary Amperex Technology Co., Limited | Method for controlling a power-down detection circuit, controller and computer readable storage media |
| CN112630507B (en) * | 2018-09-17 | 2023-07-18 | 宁德时代新能源科技股份有限公司 | Control method, controller and medium of power failure detection circuit |
| CN109624786A (en) * | 2018-12-29 | 2019-04-16 | 蜂巢能源科技有限公司 | Power battery preliminary filling resistance protection control method |
| CN109624786B (en) * | 2018-12-29 | 2021-08-20 | 蜂巢能源科技有限公司 | Power battery pre-charging resistor protection control method |
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| Publication number | Publication date |
|---|---|
| CN105620292B (en) | 2017-12-12 |
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