CN206096374U - On -vehicle battery management system main relay adhesion detection circuitry - Google Patents
On -vehicle battery management system main relay adhesion detection circuitry Download PDFInfo
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- CN206096374U CN206096374U CN201620935435.XU CN201620935435U CN206096374U CN 206096374 U CN206096374 U CN 206096374U CN 201620935435 U CN201620935435 U CN 201620935435U CN 206096374 U CN206096374 U CN 206096374U
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Abstract
The utility model provides an on -vehicle battery management system main relay adhesion detection circuitry, including first to three switches, it is first, and secondly, the 7th, the 8th resistance, the one end and the positive bus of first switch link to each other, first and second series resistance constitute voltage -divider network, the other end of first resistance and first switch links to each other, the one end of the 7th resistance and total positive main relay's non - battery side link to each other, the other end and the 8th series resistance of the 7th resistance constitute voltage -divider network, the vehicle charging control system further comprises a second resistor, the 8th resistance links to each other with the sampling with referring to, the one end and the negative bus of second switch link to each other, the other end and the sampling of second switch link to each other with referring to, the one end of third switch and the non - battery side of always bearing main relay link to each other, the other end and the sampling of third switch link to each other with referring to. The utility model discloses can realize that safe, simple, reliable main relay adhesion detects.
Description
Technical field
The utility model is related to a kind of vehicle mounted battery management system main relay adhesion detection circuit.
Background technology
With the fast development of electric automobile industry, the importance of electric automobile high-voltage part is increasingly by the weight of people
Depending on., used as the power resources of car load, just whether the working condition of the main relay in its high-voltage charge and discharge loop for power battery pack
The safety of car load is often directly influenced, therefore the malfunction of detection main relay is necessary, so as to ensure that electrokinetic cell is being led
High voltage supply is carried out in the case of relay working condition is normal or battery charges, ensure that electrokinetic cell event occurs in main relay
Misoperation is avoided during barrier, the unsafe factor during high-voltage charge and discharge is eliminated.Current battery management system is to power electric
The adhesion state-detection of pond high tension loop main relay is not perfect enough, and some battery management systems do not possess detection function, have
Its measure loop and battery power feeds and charging inlet have electrical connection, there is potential safety hazard, and some detection functions are depended on
The closure repeatedly of main relay, disconnection action run counter to electric automobile to electric specific process requirements in the safety of high pressure realizing.
Utility model content
Main purpose of the present utility model is to overcome the deficiencies in the prior art, there is provided a kind of vehicle mounted battery management system master
Relay adhesion detects circuit, realizes safe, simple, reliable main relay adhesion detection.
For achieving the above object, the utility model is employed the following technical solutions：
A kind of vehicle mounted battery management system main relay adhesion detects circuit, including positive bus, negative bus and company
The electrokinetic cell being connected between positive bus and negative bus, is provided with total positive main relay, in negative bus in positive bus
Always negative main relay is provided with, also including first switch, second switch, the 3rd switch, first resistor, second resistance, the 7th electric
Resistance and the 8th resistance, one end of first switch is connected with positive bus, first resistor and second resistance potential-divider network in series,
First voltage collection point is set between first resistor and second resistance, and first resistor is connected with the other end of first switch, the 7th
One end of resistance is connected with the non-battery side of total positive main relay, and the other end of the 7th resistance and the 8th resistant series constitute partial pressure
Network, arranges the 4th voltage acquisition point, second resistance, the 8th resistance and sample reference ground phase between the 7th resistance and the 8th resistance
Even, one end of second switch is connected with negative bus, and the other end of second switch is connected with sample reference ground, and the one of the 3rd switch
Hold and be connected with the non-battery side of total negative main relay, the other end of the 3rd switch is connected with sample reference ground.
Further：
Also include be connected in positive bus fill soon line, be arranged on fill soon on line fill main relay and the 5th soon
Resistance and the 6th resistance, one end of the 5th resistance is connected with the non-battery side for filling main relay soon, the other end of the 5th resistance and
6th resistant series constitute potential-divider network, and tertiary voltage collection point is arranged between the 5th resistance and the 6th resistance, the 6th resistance
The other end is connected with sample reference ground.
Also include the trickle charge line being connected in positive bus, the trickle charge main relay and the 3rd being arranged on trickle charge line
Resistance and the 4th resistance, one end of 3rd resistor is connected with the non-battery side of trickle charge main relay, the other end of 3rd resistor and
4th resistant series constitute potential-divider network, and second voltage collection point is arranged between 3rd resistor and the 4th resistance, the 4th resistance
The other end is connected with sample reference ground.
Also include preliminary filling main relay and its series resistance being connected in parallel on total positive main relay.
Also there is following any one configuration：
1) second switch, the 3rd switch, second resistance, the 4th resistance, the 6th resistance, the 8th resistance is directly and sample reference
Ground is connected, and first switch is directly connected with positive bus；
2) second switch, the 3rd switch, second resistance, the 4th resistance, the 6th resistance, the 8th resistance is directly and sample reference
Ground is connected, and first switch is connected by resistance with positive bus；
3) second switch and the 3rd switch are connected by common resistance and sample reference, second resistance, the 4th resistance, the
Six resistance, the 8th resistance are directly connected with sample reference；
4) second switch and the 3rd switch be directly connected with sample reference, second resistance, the 4th resistance, the 6th resistance,
8th resistance is connected by common resistance with sample reference ground；
5) second switch is connected by resistance and sample reference, the 3rd switch, second resistance, the 4th resistance, the 6th electric
Resistance, the 8th resistance are directly connected with sample reference；
6) the 3rd switch is connected by resistance and sample reference, second switch, second resistance, the 4th resistance, the 6th electric
Resistance, the 8th resistance are directly connected with sample reference.
The beneficial effects of the utility model：
1. main relay adhesion of the present utility model detects circuit, and its detection function does not rely on closing repeatedly for main relay
Close, disconnection action realizing, fully meet electric automobile to electric specific process requirements in the safety of high pressure.
2. main relay adhesion of the present utility model detects circuit, not only realize to the master in electrokinetic cell major loop after
The adhesion detection of electrical equipment, and the adhesion detection of the first to the 3rd switch in also achieving to detecting circuit itself.
3. main relay adhesion of the present utility model detects circuit, when main relay adhesion detection is not carried out, it is ensured that
Measure loop and electrokinetic cell major loop be fully disconnected, it is to avoid unsafe factor.
4. main relay adhesion of the present utility model detects circuit, when main relay adhesion detection is not carried out, it is ensured that
Measure loop and electrokinetic cell major loop be fully disconnected, it is to avoid measure loop is to electrokinetic cell continuous discharge.
5. main relay adhesion of the present utility model detects circuit, by the switching of second switch and the 3rd switch, realizes
Respectively accessory power supply is simplified to electrokinetic cell side and the voltage sample of load (charging) side in the case of single reference ground
Design.
Description of the drawings
Fig. 1 is that a kind of structure of embodiment of the utility model vehicle mounted battery management system main relay adhesion detection circuit is shown
It is intended to；
Fig. 2 is the structure that the adhesion of the utility model vehicle mounted battery management system main relay detects circuit another kind embodiment
Schematic diagram；
Fig. 3 is the structure that the adhesion of the utility model vehicle mounted battery management system main relay detects circuit another kind embodiment
Schematic diagram；
Fig. 4 is the structure that the adhesion of the utility model vehicle mounted battery management system main relay detects circuit another kind embodiment
Schematic diagram；
Fig. 5 is the structure that the adhesion of the utility model vehicle mounted battery management system main relay detects circuit another kind embodiment
Schematic diagram；
Fig. 6 is the structure that the adhesion of the utility model vehicle mounted battery management system main relay detects circuit another kind embodiment
Schematic diagram.
Specific embodiment
Embodiment of the present utility model is elaborated below.It is emphasized that the description below is only example
Property, rather than in order to limit scope of the present utility model and its application.
Refering to Fig. 1 to Fig. 6, in one embodiment, a kind of vehicle mounted battery management system main relay adhesion detects circuit,
Including positive bus BUS+, negative bus BUS- and the power electric being connected between positive bus BUS+ and negative bus BUS-
Pond, is provided with total positive main relay S1 in positive bus BUS+, always negative main relay S5 is provided with negative bus BUS-, also wraps
Include first switch K1, second switch K2, the 3rd switch K3, first resistor R1, second resistance R2, the 7th resistance R7 and the 8th resistance
R8, one end of first switch K1 is connected with positive bus BUS+, first resistor R1 and second resistance R2 potential-divider network in series,
The other end phase of first voltage collection point, first resistor R1 and first switch K1 is set between first resistor R1 and second resistance R2
Even, the non-battery side PRE+ of one end of the 7th resistance R7 and total just main relay S1 is connected, the other end of the 7th resistance R7 and the
Eight resistance R8 potential-divider networks in series, arrange the 4th voltage acquisition point between the 7th resistance R7 and the 8th resistance R8, second is electric
Resistance R2, the 8th resistance R8 are connected with sample reference ground, and one end of second switch K2 is connected with negative bus, and second switch K2's is another
One end is connected with sample reference ground, and one end of the 3rd switch K3 is connected with the non-battery side PRE- of total negative main relay S5, and the 3rd
The other end of switch K3 is connected with sample reference ground.
In a preferred embodiment, main relay adhesion detection circuit also include be connected in positive bus fill soon line,
Be arranged on fill soon on line fill main relay S3 and the 5th resistance R5 and the 6th resistance R6 soon, one end of the 5th resistance R5 and
The non-battery side PRE1+ for filling main relay S3 soon is connected, the other end and the 6th resistance R6 partial pressures in series of the 5th resistance R5
Network, arranges tertiary voltage collection point, the other end and sampling ginseng of the 6th resistance R6 between the 5th resistance R5 and the 6th resistance R6
It is connected with examining.
In a preferred embodiment, main relay adhesion detection circuit also include being connected to trickle charge line in positive bus,
The trickle charge main relay S4 being arranged on trickle charge line and 3rd resistor R3 and the 4th resistance R4, one end of 3rd resistor R3 and
The non-battery side PRE2+ of trickle charge main relay S4 is connected, the other end of 3rd resistor R3 and the 4th resistance R4 partial pressures in series
Network, arranges second voltage collection point, the other end and sampling ginseng of the 4th resistance R4 between 3rd resistor R3 and the 4th resistance R4
It is connected with examining.
In a preferred embodiment, main relay adhesion detection circuit also includes being connected in parallel on total positive main relay S1
Preliminary filling main relay S2 and its series resistance.
In various embodiments, main relay adhesion detection circuit can be using following any one configuration：
As shown in figure 1, in one embodiment, second switch K2, the 3rd switch K3, second resistance R2, the 4th resistance R4,
6th resistance R6, the 8th resistance R8 are directly connected with sample reference, and first switch K1 is directly connected with positive bus；
As shown in Fig. 2 in another embodiment, second switch K2, the 3rd switch K3, second resistance R2, the 4th resistance
R4, the 6th resistance R6, the 8th resistance R8 are directly connected with sample reference, and first switch K1 is by resistance R9 and positive bus
It is connected；Or
As shown in figure 3, in another embodiment, the switch K3 of second switch K2 and the 3rd are by common resistance R9 and sampling
Reference ground is connected, and second resistance R2, the 4th resistance R4, the 6th resistance R6, the 8th resistance R8 are directly connected with sample reference；Or
As shown in figure 4, in another embodiment, the switches of second switch K2 and the 3rd K3 directly with sample reference ground phase
Even, second resistance R2, the 4th resistance R4, the 6th resistance R6, the 8th resistance R8 are connected by common resistance R9 with sample reference ground；
Or
As shown in figure 5, in another embodiment, second switch K2 is connected by resistance R9 with sample reference ground, the 3rd
Switch K3, second resistance R2, the 4th resistance R4, the 6th resistance R6, the 8th resistance R8 are directly connected with sample reference；
As shown in fig. 6, in another embodiment, the 3rd switch K3 is connected by resistance R9 with sample reference ground, second
Switch K2, second resistance R2, the 4th resistance R4, the 6th resistance R6, the 8th resistance R8 are directly connected with sample reference.
A kind of vehicle mounted battery management system main relay adhesion detection method, can adopt the vehicle mounted electric of aforementioned any embodiment
Pond management system main relay adhesion detection circuit, it can include following arbitrary detection process：
Adhesion detection to total negative main relay S5：
All main relays, closure first switch K1 and second switch K2 are disconnected, the 3rd is disconnected and is switched K3, by collecting
First voltage V1 and first resistor R1, the computing the resistor value of second resistance R2 obtain positive bus BUS+ to negative bus BUS-
Voltage VBB, be then turned off second switch K2, closure the 3rd switchs K3, by first voltage V1 that collects and first resistor
R1, the computing the resistor value of second resistance R2 obtain voltage of positive bus BUS+ to the non-battery side PRE- of total negative main relay S5
VBP, and comparison voltage VBB and voltage VBP, it is of substantially equal if the difference of voltage VBB and voltage VBP is less than predetermined value, then judge
Always negative main relay S5 adhesions；
Adhesion detection to total positive main relay S1：
All main relays, closure first switch K1 and second switch K2 are disconnected, the 3rd is disconnected and is switched K3, by collecting
First voltage V1 and first resistor R1, the computing the resistor value of second resistance R2 obtain positive bus BUS+ to negative bus BUS-
Voltage VBB, then the 4th voltage V4 and the 7th resistance R7, the computing the resistor value of the 8th resistance R8 by collecting obtain always
Voltage VPBs of the non-battery side PRE+ of positive main relay S1 to negative bus BUS-, and comparison voltage VBB and voltage VPB, if
The difference of voltage VBB and voltage VPB is less than predetermined value, of substantially equal, then judge total positive main relay S1 adhesions.
Adhesion to filling main relay S3 soon is detected：
All main relays, closure first switch K1 and second switch K2 are disconnected, the 3rd is disconnected and is switched K3, by collecting
First voltage V1 and first resistor R1, the computing the resistor value of second resistance R2 obtain positive bus BUS+ to negative bus BUS-
Voltage VBB, then the tertiary voltage V3 and the 5th resistance R5, the computing the resistor value of the 6th resistance R6 by collecting obtain soon
The voltage VPB1s of the non-battery side PRE1+ to negative bus BUS- of main relay S3, and comparison voltage VBB and voltage VPB1 are filled,
If the difference of VBB and VPB1 is less than predetermined value, of substantially equal, then judge to fill main relay S3 adhesions soon.
Adhesion to trickle charge main relay S4 is detected：
All main relays, closure first switch K1 and second switch K2 are disconnected, the 3rd is disconnected and is switched K3, by collecting
First voltage V1 and first resistor R1, the computing the resistor value of second resistance R2 obtain positive bus BUS+ to negative bus BUS-
Voltage VBB, then second voltage V2 and 3rd resistor R3, the computing the resistor value of 3rd resistor R4 by collecting obtain trickle charge
Voltage VPB2s of the non-battery side PRE2+ of main relay S4 to BUS-, and comparison voltage VBB and voltage VPB2, if VBB and
The difference of VPB2 is less than predetermined value, of substantially equal, then judge trickle charge main relay S4 adhesions.
Adhesion detection to total positive main relay S1 and preliminary filling main relay S2 in parallel therewith：
All main relays, closure first switch K1 and second switch K2 are disconnected, the 3rd is disconnected and is switched K3, by collecting
First voltage V1 and first resistor R1, the computing the resistor value of second resistance R2 obtain positive bus BUS+ to negative bus BUS-
Voltage VBB, then the 4th voltage V4 and the 7th resistance R7, the computing the resistor value of the 8th resistance R8 by collecting obtain always
Voltage VPBs of the non-battery side PRE+ of positive main relay S1 to negative bus BUS-, and comparison voltage VBB and voltage VPB, if
The difference of voltage VBB and voltage VPB is less than predetermined value, of substantially equal, then judge total positive main relay S1 or preliminary filling main relay S2
Adhesion.
Non-detection status：
When main relay adhesion detection is not carried out, K1, K2 and K3 are disconnected, it is ensured that measure loop and electrokinetic cell major loop
It is fully disconnected, it is to avoid unsafe factor, prevented also from measure loop to electrokinetic cell continuous discharge.
Circuit is detected using the main relay adhesion of the various embodiments of the utility model, in can also realizing to detecting circuit
Switch K1, K2, K3 adhesion detection, vehicle mounted battery management system switch adhesion detection method is as follows：
Adhesion to first switch K1 is detected：
Always negative main relay S5 is disconnected, second switch K2 is closed, first switch K1, the 3rd switch K3 is disconnected, by collection
To first voltage V1 and first resistor R1, the computing the resistor value of second resistance R2 obtain positive bus BUS+ to negative bus
The voltage VBB of BUS-, if the difference of voltage VBB and power battery voltage (is far longer than zero, close power electric less than predetermined value
Pond group voltage), then judge the adhesion of first switch K1.
Adhesion to second switch K2 is detected：
Always negative main relay S5 is disconnected, first switch K1 is closed, second switch K2, the 3rd switch K3 is disconnected, by collection
To first voltage V1 and first resistor R1, the computing the resistor value of second resistance R2 obtain positive bus BUS+ to negative bus
The voltage VBB of BUS-, if the difference of voltage VBB and power battery voltage (is far longer than zero, close power electric less than predetermined value
Pond group voltage), then judge second switch K2 adhesions.
Adhesion detection to the 3rd switch K3：
Closure always bears main relay S5, closes first switch K1, second switch K2, the 3rd switch K3 is disconnected, by collection
To first voltage V1 and first resistor R1, the computing the resistor value of second resistance R2 obtain positive bus BUS+ to negative bus
The voltage VBB of BUS-, if the difference of voltage VBB and power battery voltage (is far longer than zero, close power electric less than predetermined value
Pond group voltage), then judge the 3rd switch K3 adhesions.
Various embodiments of the present utility model have advantages below：
1. main relay adhesion of the present utility model detects circuit, relatively a certain by the end points for detecting main relay both sides
The voltage of common point is realizing the judgement to adhesion state；
2. main relay adhesion of the present utility model detects circuit, and the resistor network of its detection voltage is by switching K1, K2
Realize the isolation with electrokinetic cell side positive bus-bar and negative busbar；
3. main relay adhesion of the present utility model detects circuit, and the sample reference ground of the resistor network of its detection voltage is only
One；
4. main relay adhesion of the present utility model detects circuit, and the sample reference ground of the resistor network of its detection voltage leads to
Cross the voltage sample that switch K2, K3 realized to electrokinetic cell side and loaded (charging) side；
5. main relay adhesion of the present utility model detects circuit, and the resistor network of its detection voltage is by switch K3, reality
Now with the isolation of load end negative busbar；
6. main relay adhesion of the present utility model detects circuit, and by switching K1, K2, K3 measure loop and high pressure are realized
Power main loop is fully disconnected, it is to avoid measure loop energy constant is consumed.
Above content is with reference to concrete/preferred embodiment further detailed description of the utility model, no
Energy identification is of the present utility model to be embodied as being confined to these explanations.For the common skill of the utility model art
For art personnel, without departing from the concept of the premise utility, it can also make to the embodiment that these have been described
Some replacements or modification, and these are substituted or variant should all be considered as belonging to protection domain of the present utility model.
Claims (5)
1. a kind of vehicle mounted battery management system main relay adhesion detects circuit, including positive bus, negative bus and connection
Electrokinetic cell between the positive bus and the negative bus, is provided with total positive main relay in the positive bus,
Always negative main relay is provided with the negative bus, it is characterised in that also switch including first switch, second switch, the 3rd,
First resistor, second resistance, the 7th resistance and the 8th resistance, one end of first switch is connected with positive bus, first resistor and
Second resistance potential-divider network in series, arranges first voltage collection point between first resistor and second resistance, first resistor and
The other end of first switch is connected, and the non-battery side of one end of the 7th resistance and total just main relay is connected, the 7th resistance it is another
One end and the 8th resistant series constitute potential-divider network, the 4th voltage acquisition point of setting between the 7th resistance and the 8th resistance, and second
Be connected, one end of second switch is connected with negative bus resistance, the 8th resistance and sample reference, the other end of second switch with
Be connected, the non-battery side of one end of the 3rd switch and total negative main relay is connected sample reference, the 3rd other end for switching with
It is connected sample reference.
2. vehicle mounted battery management system main relay adhesion as claimed in claim 1 detects circuit, it is characterised in that also include
Be connected in positive bus fill soon line, be arranged on fill soon on line fill main relay and the 5th resistance and the 6th resistance soon,
One end of 5th resistance is connected with the non-battery side for filling main relay soon, and the other end of the 5th resistance and the 6th resistant series are constituted
Potential-divider network, arranges tertiary voltage collection point, the other end and sample reference of the 6th resistance between the 5th resistance and the 6th resistance
Ground is connected.
3. vehicle mounted battery management system main relay adhesion as claimed in claim 1 or 2 detects circuit, it is characterised in that also
Including the trickle charge line being connected in positive bus, the trickle charge main relay being arranged on trickle charge line and 3rd resistor and the 4th
Resistance, one end of 3rd resistor is connected with the non-battery side of trickle charge main relay, the other end of 3rd resistor and the 4th resistance string
Connection constitutes potential-divider network, arranges second voltage collection point between 3rd resistor and the 4th resistance, the other end of the 4th resistance and adopts
Sample reference ground is connected.
4. vehicle mounted battery management system main relay adhesion as claimed in claim 1 or 2 detects circuit, it is characterised in that also
Including the preliminary filling main relay and its series resistance that are connected in parallel on total positive main relay.
5. vehicle mounted battery management system main relay adhesion as claimed in claim 1 detects circuit, it is characterised in that also include
Be connected in positive bus fill soon line, be arranged on fill soon on line fill main relay, the trickle charge being connected in positive bus soon
Line, the trickle charge main relay being arranged on trickle charge line and 3rd resistor, the 4th resistance, the 5th resistance and the 6th resistance, the 5th
One end of resistance is connected with the non-battery side for filling main relay soon, and the other end of the 5th resistance and the 6th resistant series constitute partial pressure
Network, arranges tertiary voltage collection point, the other end of the 6th resistance and sample reference ground phase between the 5th resistance and the 6th resistance
Even, one end of 3rd resistor is connected with the non-battery side of trickle charge main relay, the other end of 3rd resistor and the 4th resistant series
Potential-divider network is constituted, second voltage collection point, the other end of the 4th resistance and sampling are set between 3rd resistor and the 4th resistance
Reference ground is connected；
And with following any one configuration：
1) second switch, the 3rd switch, second resistance, the 4th resistance, the 6th resistance, the 8th resistance directly with sample reference ground phase
Connect, and first switch is directly connected with positive bus；
2) second switch, the 3rd switch, second resistance, the 4th resistance, the 6th resistance, the 8th resistance directly with sample reference ground phase
Connect, and first switch is connected by resistance with positive bus；
3) second switch and the 3rd switch are connected by common resistance and sample reference, second resistance, the 4th resistance, the 6th electric
Resistance, the 8th resistance are directly connected with sample reference；
4) second switch and the 3rd switch be directly connected with sample reference, second resistance, the 4th resistance, the 6th resistance, the 8th
Resistance is connected by common resistance with sample reference ground；
5) second switch is connected by resistance and sample reference, the 3rd switch, second resistance, the 4th resistance, the 6th resistance, the
Eight resistance are directly connected with sample reference；
6) the 3rd switch is connected by resistance and sample reference, second switch, second resistance, the 4th resistance, the 6th resistance, the
Eight resistance are directly connected with sample reference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620935435.XU CN206096374U (en) | 2016-08-24 | 2016-08-24 | On -vehicle battery management system main relay adhesion detection circuitry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620935435.XU CN206096374U (en) | 2016-08-24 | 2016-08-24 | On -vehicle battery management system main relay adhesion detection circuitry |
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| Publication Number | Publication Date |
|---|---|
| CN206096374U true CN206096374U (en) | 2017-04-12 |
Family
ID=58469784
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620935435.XU Withdrawn - After Issue CN206096374U (en) | 2016-08-24 | 2016-08-24 | On -vehicle battery management system main relay adhesion detection circuitry |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106338688A (en) * | 2016-08-24 | 2017-01-18 | 深圳市科列技术股份有限公司 | Vehicle battery management system main relay adhesion detection circuit and detection method thereof |
| CN109521359A (en) * | 2018-12-28 | 2019-03-26 | 华人运通控股有限公司 | A kind of negative relay status detection circuit of power battery master and method |
| CN109725252A (en) * | 2019-03-13 | 2019-05-07 | 海马汽车有限公司 | A kind of relay status detection circuit and its method |
| CN112684334A (en) * | 2020-12-22 | 2021-04-20 | 上海玖行能源科技有限公司 | Electric automobile alternating current pile main relay adhesion detection system and method |
| CN113466676A (en) * | 2020-03-31 | 2021-10-01 | 比亚迪股份有限公司 | Circuit for detecting switch contact adhesion, detection method thereof and vehicle |
| CN114019360A (en) * | 2021-10-27 | 2022-02-08 | 智新控制***有限公司 | Multi-relay diagnostic system and method |
-
2016
- 2016-08-24 CN CN201620935435.XU patent/CN206096374U/en not_active Withdrawn - After Issue
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106338688A (en) * | 2016-08-24 | 2017-01-18 | 深圳市科列技术股份有限公司 | Vehicle battery management system main relay adhesion detection circuit and detection method thereof |
| WO2018036249A1 (en) * | 2016-08-24 | 2018-03-01 | 深圳市科列技术股份有限公司 | Main relay adhesion detection circuit of vehicle-mounted battery management system, and detection method therefor |
| CN106338688B (en) * | 2016-08-24 | 2019-11-26 | 深圳市科列技术股份有限公司 | Vehicle mounted battery management system main relay adhesion detection circuit and its detection method |
| CN109521359A (en) * | 2018-12-28 | 2019-03-26 | 华人运通控股有限公司 | A kind of negative relay status detection circuit of power battery master and method |
| CN109725252A (en) * | 2019-03-13 | 2019-05-07 | 海马汽车有限公司 | A kind of relay status detection circuit and its method |
| CN113466676A (en) * | 2020-03-31 | 2021-10-01 | 比亚迪股份有限公司 | Circuit for detecting switch contact adhesion, detection method thereof and vehicle |
| CN113466676B (en) * | 2020-03-31 | 2022-12-09 | 比亚迪股份有限公司 | Circuit for detecting switch contact adhesion, detection method thereof and vehicle |
| CN112684334A (en) * | 2020-12-22 | 2021-04-20 | 上海玖行能源科技有限公司 | Electric automobile alternating current pile main relay adhesion detection system and method |
| CN112684334B (en) * | 2020-12-22 | 2022-07-22 | 上海玖行能源科技有限公司 | Electric automobile alternating current pile main relay adhesion detection system and method |
| CN114019360A (en) * | 2021-10-27 | 2022-02-08 | 智新控制***有限公司 | Multi-relay diagnostic system and method |
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