CN109693544A - A kind of electric automobile high-voltage interlocking loop - Google Patents
A kind of electric automobile high-voltage interlocking loop Download PDFInfo
- Publication number
- CN109693544A CN109693544A CN201910029425.8A CN201910029425A CN109693544A CN 109693544 A CN109693544 A CN 109693544A CN 201910029425 A CN201910029425 A CN 201910029425A CN 109693544 A CN109693544 A CN 109693544A
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- air
- conditioning
- voltage interlocking
- contactor
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- 238000004378 air conditioning Methods 0.000 claims abstract description 52
- 238000012423 maintenance Methods 0.000 claims abstract description 10
- 238000010586 diagram Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
Classifications
-
- 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
- B60L3/04—Cutting off the power supply under fault conditions
-
- 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
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention discloses a kind of electric automobile high-voltage interlocking loops, including main high-voltage interlocking circuit, and the air-conditioning high-voltage interlocking circuit being connect with the high-voltage interlocking circuit by CAN bus；The main high-voltage interlocking switch being serially connected, air-conditioning high-voltage interlocking switch and the first maintenance interlock switch are provided on the main high-voltage interlocking circuit；The air conditioning motor-driven compressor interlock switch being serially connected, air-conditioning ptc heater interlock switch and the second maintenance interlock switch are provided on air-conditioning high-voltage interlocking circuit；Circuit design of the present invention is simple, at low cost, highly-safe.
Description
Technical field
The present invention relates to a kind of electric automobile high-voltage interlocking loops.
Background technique
At present, high-voltage interlocking circuit is the important system that electric car realizes high-voltage safety.It connects each interlock switch
It is formed into a loop in control circuit, if one of them is disconnected with upper switch, controller will automatically cut off high-tension circuit, it is ensured that peace
Entirely.Interlock switch has two classes: one kind is to be mounted on the positions such as high pressure connector, high pressure assembly lid for high voltage component assembly,
Under normal operation, interlock switch is closure, as operator extracts high pressure connector in the case where non-broken height piezoelectricity
Or when opening high pressure assembly lid, high tension loop can be automatically cut off；Another kind of is the interlock switch of maintenance, detection, is mounted on phase
It closes route nearby and facilitates the position of operation, when needing high pressure to power off, can directly extract this interlock switch in lower electric situation,
To be detected and to be repaired to vehicle.But existing mode designs complexity, at high cost, and safety can not ensure.
Summary of the invention
Object of the present invention is to provide a kind of electric automobile high-voltage interlocking loop in view of the defects existing in the prior art.
The present invention to achieve the above object, adopts the following technical scheme that a kind of electric automobile high-voltage interlocking loop, including
Main high-voltage interlocking circuit, and the air-conditioning high-voltage interlocking circuit being connect with the high-voltage interlocking circuit by CAN bus；The master
The main high-voltage interlocking switch being serially connected, air-conditioning high-voltage interlocking switch and the first maintenance interlocking is provided on high-voltage interlocking circuit to open
It closes；The air conditioning motor-driven compressor interlock switch being serially connected, air-conditioning ptc heater are provided on air-conditioning high-voltage interlocking circuit
Interlock switch and the second maintenance interlock switch；
The main high-voltage interlocking circuit includes power battery assembly, and the positive terminal of the power battery assembly is connect by anode
Tentaculum is connected with the input terminal in air-conditioning high-voltage interlocking circuit；The negative pole end of the power battery assembly passes through cathode contact device and institute
State the output end connection in air-conditioning high-voltage interlocking circuit；
Air-conditioning high-voltage interlocking circuit includes that main contactor, preliminary filling resistance, preliminary filling contactor, air conditioning motor-driven compressor connect
Tentaculum and air-conditioning ptc heater contactor；It is in parallel with the main contactor after the preliminary filling resistance and the series connection of preliminary filling contactor；Institute
The input terminal for stating main contactor is connect with the positive contactor, and the output end of the main contactor passes through the air conditioner electric dynamic pressure
Contracting machine contactor is connect with the control signal of the air conditioning motor-driven compressor, and the output end of the main contactor passes through the sky
Ptc heater contactor is adjusted to connect with the control signal of the air-conditioning ptc heater.
Beneficial effects of the present invention: circuit design of the present invention is simple, at low cost, highly-safe.
Detailed description of the invention
Fig. 1 is system principle diagram of the invention；
Fig. 2 is system control principle schematic diagram of the invention.
Specific embodiment
Shown in Fig. 1, disclose a kind of electric automobile high-voltage interlocking loop, including main high-voltage interlocking circuit 10, and with institute
State the air-conditioning high-voltage interlocking circuit 20 that high-voltage interlocking circuit 10 is connected by CAN bus；It is set on the main high-voltage interlocking circuit 10
It is equipped with the main high-voltage interlocking switch 11 being serially connected, air-conditioning high-voltage interlocking switch 12 and the first maintenance interlock switch 13；The sky
It is turned up on pressure interlocking loop 20 and is provided with the air conditioning motor-driven compressor interlock switch 21 being serially connected, the interlocking of air-conditioning ptc heater
Switch 22 and the second maintenance interlock switch 23；
The main high-voltage interlocking circuit 10 includes power battery assembly (3 He of the first power battery being serially connected in Fig. 1
Second power battery 3), the positive terminal of the power battery assembly passes through positive contactor 4 and air-conditioning high-voltage interlocking circuit 20
Input terminal connection；The negative pole end of the power battery assembly is defeated by cathode contact device 1 and air-conditioning high-voltage interlocking circuit
Outlet connection；
Air-conditioning high-voltage interlocking circuit 20 includes main contactor 5, preliminary filling resistance 6, preliminary filling contactor 7, air conditioner electric dynamic pressure
Contracting machine contactor 8 and air-conditioning ptc heater contactor 9；The preliminary filling resistance 6 and preliminary filling contactor 7 connect after connecting with the master
Tentaculum 5 is in parallel；The input terminal of the main contactor 5 is connect with the positive contactor 4, and the output end of the main contactor 5 is logical
It crosses the air conditioning motor-driven compressor contactor 8 to connect with the control signal of the air conditioning motor-driven compressor, the main contactor 5
Output end connect by the air-conditioning ptc heater contactor 9 with the control signal of the air-conditioning ptc heater.
As shown in Fig. 2, control principle is as follows: due to being provided with two high-voltage interlocking circuits, main high-voltage interlocking circuit 10 with
Air-conditioning high-voltage interlocking circuit 20；Main high-voltage interlocking circuit 10 controls positive contactor, cathode contact device, main contactor and preliminary filling and connects
Tentaculum, if main high-voltage interlocking switch 11, air-conditioning high-voltage interlocking switch 12, first maintenance interlock switch 13 in it is therein 1 and
When the above disconnection, main high-voltage interlocking circuit 10 will control positive contactor, cathode contact device, main contactor, preliminary filling contactor
All disconnect, Quan Chewu high-voltage electricity, electric car cannot power on traveling, cannot charge, air conditioner refrigerating and heating system can not work
Make.Air-conditioning high-voltage interlocking circuit 20 controls air conditioning motor-driven compressor contactor, air-conditioning ptc heater contactor, as long as air conditioner electric
Dynamic compressor interlock switch 21, air-conditioning ptc heater interlock switch 22, second repair in interlock switch 23 wherein 1 and with
When upper disconnection, air-conditioning high-voltage interlocking circuit 20 will control air conditioning motor-driven compressor contactor, air-conditioning ptc heater contactor all
It disconnects, the refrigeration that cannot turn on the aircondition or heating, but does not influence electric car and power on traveling and charging, and instrument can report the event of air-conditioning high pressure
Hinder information, need to be overhauled as early as possible.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (1)
1. a kind of electric automobile high-voltage interlocking loop, which is characterized in that mutual including main high-voltage interlocking circuit, and with the high pressure
The air-conditioning high-voltage interlocking circuit that lock loop is connected by CAN bus；It is provided on the main high-voltage interlocking circuit and to be serially connected
Main high-voltage interlocking switch, air-conditioning high-voltage interlocking switch and the first maintenance interlock switch；The air-conditioning high-voltage interlocking is arranged on circuit
There are the air conditioning motor-driven compressor interlock switch being serially connected, air-conditioning ptc heater interlock switch and the second maintenance interlock switch；
The main high-voltage interlocking circuit includes power battery assembly, and the positive terminal of the power battery assembly passes through positive contactor
It is connected with the input terminal in air-conditioning high-voltage interlocking circuit；The negative pole end of the power battery assembly passes through cathode contact device and the sky
The output end connection of pressure interlocking loop is turned up；
Air-conditioning high-voltage interlocking circuit includes main contactor, preliminary filling resistance, preliminary filling contactor, air conditioning motor-driven compressor contactor
With air-conditioning ptc heater contactor；It is in parallel with the main contactor after the preliminary filling resistance and the series connection of preliminary filling contactor；The master
The input terminal of contactor is connect with the positive contactor, and the output end of the main contactor passes through the air conditioning motor-driven compressor
Contactor is connect with the control signal of the air conditioning motor-driven compressor, and the output end of the main contactor passes through the air-conditioning
Ptc heater contactor is connect with the control signal of the air-conditioning ptc heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910029425.8A CN109693544B (en) | 2019-01-13 | 2019-01-13 | High-voltage interlocking loop of electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910029425.8A CN109693544B (en) | 2019-01-13 | 2019-01-13 | High-voltage interlocking loop of electric automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109693544A true CN109693544A (en) | 2019-04-30 |
| CN109693544B CN109693544B (en) | 2023-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910029425.8A Active CN109693544B (en) | 2019-01-13 | 2019-01-13 | High-voltage interlocking loop of electric automobile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11642967B2 (en) | 2020-07-27 | 2023-05-09 | Caterpillar Inc. | Independent high voltage interlocking loop systems |
| EP4344926A1 (en) * | 2022-09-21 | 2024-04-03 | Liebherr-Werk Nenzing GmbH | Electric traction drive working machine |
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| US20090073624A1 (en) * | 2007-09-18 | 2009-03-19 | Rich Allen Scholer | High Voltage Interlock System and Control Strategy |
| US20110062798A1 (en) * | 2009-09-17 | 2011-03-17 | Gm Global Technology Operations, Inc. | Functional high-voltage interlock system and method |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11642967B2 (en) | 2020-07-27 | 2023-05-09 | Caterpillar Inc. | Independent high voltage interlocking loop systems |
| EP4344926A1 (en) * | 2022-09-21 | 2024-04-03 | Liebherr-Werk Nenzing GmbH | Electric traction drive working machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109693544B (en) | 2023-12-08 |
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