CN111038266A - Safety control system and method for new energy automobile insulation module - Google Patents
Safety control system and method for new energy automobile insulation module Download PDFInfo
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- CN111038266A CN111038266A CN201911417979.1A CN201911417979A CN111038266A CN 111038266 A CN111038266 A CN 111038266A CN 201911417979 A CN201911417979 A CN 201911417979A CN 111038266 A CN111038266 A CN 111038266A
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- relay
- detection module
- insulation
- insulation detection
- voltage component
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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
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0069—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to the isolation, e.g. ground fault or leak current
Abstract
The invention discloses a safety control system and a method for an insulation module of a new energy automobile, wherein the system comprises the following steps: the insulation detection module IM is in communication connection with the main negative relay, the PTC relay, the SPC relay, the OBC relay, the heating relay and the pre-charging relay through the CAN line, the VCU of the whole vehicle controller, the PTC controller and the OBC controller, the SPC controller and the MCU controller. Insulating detection module IM carries out high-pressure safety and detects based on insulating resistance detection mechanism, relay adhesion and high-voltage component trouble, perfects the safety check-up mechanism of high-voltage component, reduces the high-pressure risk of electrocuting of electric equipment work for the vehicle, and the production of real-time detection trouble in time protects each high-voltage electric equipment through the disconnection relay, increases high-voltage electric equipment's power consumption safety.
Description
Technical Field
The invention belongs to the technical field of new energy vehicles, and particularly relates to a safety control system and method for an insulation module of a new energy vehicle.
Background
The national standard stipulates that the working voltage of the high-voltage system of the electric vehicle is more than 30V and less than or equal to 1000V in alternating current, and more than 60V and less than or equal to 1500V in direct current. The national standard shows that the working voltage of the high-voltage system of the new energy automobile is far higher than the safe voltage range of human bodies. Be different from traditional fuel vehicle, new energy automobile adopts insulating safety detection module high voltage insulation to detect and utilizes the relay to carry out safety control to other high-voltage component high voltage power supplies.
The new energy automobile can realize functions such as remote PTC heating and remote charging control, but should carry out safety inspection, detect high-voltage power consumption equipment fault and use with high pressure and carry out safety control before realizing these functions, consequently realize the insulating detection module remote control function of new energy, can more safe effectual realization whole car safety control and other consumer remote functions.
The existing detection of the new energy insulation resistance value is basically detected by a battery management system BMS, the insulation resistance value and the insulation fault are reported to a whole vehicle VCU by the battery management system BMS, the insulation fault is processed by the whole vehicle VCU, and the problems that the reporting time of the high-voltage fault is long and the high-voltage fault cannot be processed in time exist.
Disclosure of Invention
The invention provides a safety control method for an insulation module of a new energy automobile.
The invention is realized in this way, a safety control system of a new energy automobile insulation module, the system includes:
the insulation detection module IM is in communication connection with the main negative relay, the PTC relay, the SPC relay, the OBC relay, the heating relay and the pre-charging relay through the CAN line, the VCU of the whole vehicle controller, the PTC controller and the OBC controller, the SPC controller and the MCU controller.
The invention is realized in such a way, and the safety control method of the new energy automobile insulation module specifically comprises the following steps:
the insulation detection module IM carries out insulation detection by sending a whole vehicle READY control instruction or a high-voltage component remote starting instruction based on a whole vehicle controller VCU;
and if the insulation detection is safe, performing relevant actions of the whole vehicle READY control instruction or the instruction in the high-voltage component remote starting instruction.
Further, if the insulation detection module IM receives that the VCU sends a READY control command, the following steps are executed:
s11, the VCU of the vehicle controller sends a READY control command of the vehicle;
s12, the insulation detection module IM enters insulation detection based on the whole vehicle READY control instruction, and the insulation detection specifically comprises the following steps;
s121, the insulation detection module IM detects whether the insulation resistance value is in a set resistance value range, if so, the step S122 is executed;
s122, the insulation detection module IM judges whether the main relay and the negative relay are adhered, if so, the step S124 is executed;
s124, enabling the main and negative relays by the insulation detection module IM, completing the high-voltage electrification of the DCDC, and executing the step S126;
s126, an insulation detection module IM detects whether the PTC control system, the charger control system, the oil pump control system and the motor control system have faults or not, and if no faults exist, the step S127 is executed;
and S127, the insulation detection module IM sequentially controls the PTC relay, the SPC relay and the pre-charging relay to be closed, high-voltage power supply of the high-voltage electric equipment is completed, and the whole vehicle enters a READY state.
Further, if the insulation detection module IM receives a remote start instruction of the high-voltage component sent by the mobile terminal, the following steps are executed:
s21, the mobile terminal sends a remote starting instruction of the high-voltage component;
s22, the T-box receives a high-voltage component remote starting instruction sent by the mobile terminal, converts the high-voltage component remote starting instruction into a CAN communication instruction message and uploads the CAN communication instruction message to a CAN line;
s23, the insulation detection module IM reads a high-voltage component remote start instruction from the CAN line;
s24, the insulation detection module IM carries out insulation detection based on the high-voltage component remote starting instruction, and the junction edge detection method specifically comprises the following steps:
s241, the insulation detection module IM detects whether the insulation resistance value is in a set resistance value range, if so, the step S122 is executed;
s242, the insulation detection module IM judges whether the main relay and the negative relay are adhered, if so, the step S244 is executed;
s244, enabling the main and negative relays by the insulation detection module IM, completing the high-voltage electrification of the DCDC, and executing the step S246;
s246, detecting whether the PTC control system, the charger control system, the oil pump control system and the motor control system have faults or not by the insulation detection module IM, and executing a step S127 if no faults exist;
and S247, the insulation detection module IM requests the relay of the corresponding high-voltage equipment of the remote starting instruction of the high-voltage component to be closed, and requests the corresponding high-voltage equipment of the remote starting instruction of the high-voltage component to be started.
Further, after step S23, the method further includes:
s25, detecting whether a whole vehicle key signal exists or not based on the high-voltage component remote starting command, if so, executing a step S26, and if not, executing a step S24;
s26, the insulation detection module IM uploads the high-voltage component remote start failure instruction to the T-box through the CAN line, the T-box receives and analyzes the high-voltage component remote start failure instruction, the high-voltage component remote start failure instruction is uploaded and fed back to the mobile terminal, and the insulation detection module IM enters a dormant state.
The safety control method of the new energy automobile insulation module disclosed by the invention has the following beneficial effects: the insulation detection module IM carries out high-voltage safety detection based on an insulation resistance value detection mechanism, relay adhesion and high-voltage component faults, perfects a safety verification mechanism of the high-voltage component, reduces the high-voltage electric shock risk of the work of vehicle electric equipment, detects the generation of the faults in real time, protects each high-voltage electric equipment in time by disconnecting the relay, and increases the electric safety of the high-voltage electric equipment; in addition, the insulation detection module IM directly detects and processes the high-voltage fault, and the high-voltage fault can be fed back and processed in time.
Drawings
Fig. 1 is a schematic structural diagram of a safety control system of an insulation module of a new energy vehicle according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating a circuit control of a battery pack according to an embodiment of the invention;
fig. 3 is a flowchart of a safety control method for an insulation module of a new energy vehicle according to an embodiment of the present invention
Fig. 4 is a flowchart of a second safety control method for the new energy vehicle insulation module according to the embodiment of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention will be given in order to provide those skilled in the art with a more complete, accurate and thorough understanding of the inventive concept and technical solutions of the present invention.
Fig. 1 is a schematic structural diagram of a safety control system of an insulation module of a new energy vehicle according to an embodiment of the present invention, and fig. 2 is a schematic control diagram of a battery pack circuit according to an embodiment of the present invention, and for convenience of description, only a part related to the embodiment of the present invention is shown.
The system comprises:
the insulation detection module IM is in communication connection with the main negative relay, the PTC relay, the SPC relay, the OBC relay, the heating relay and the pre-charging relay through the CAN line, the VCU of the whole vehicle controller, the PTC controller and the OBC controller, the SPC controller and the MCU controller.
Fig. 3 is a first flowchart of a safety control method for an insulation module of a new energy vehicle according to an embodiment of the present invention, where the method specifically includes the following steps:
s11, the VCU of the vehicle controller sends a READY control command of the vehicle;
s12, the insulation detection module IM enters insulation detection based on the whole vehicle READY control instruction, and the insulation detection specifically comprises the following steps;
s121, the insulation detection module IM detects whether the insulation resistance value is in a set resistance value range, if so, the step S122 is executed, and if not, the step S123 is executed.
S122, the insulation detection module IM judges whether the main relay and the negative relay are adhered, if the detection result is positive, the step S124 is executed, and if the detection result is negative, the step S125 is executed;
s123, the insulation detection module IM reports the insulation fault to a VCU of the vehicle control unit and controls a main negative relay, a pre-charging relay, a PTC relay and an SPC relay to be disconnected, and the VCU controller and a heating relay report the primary fault to an instrument;
s124, enabling the main and negative relays by the insulation detection module IM, completing the high-voltage electrification of the DCDC, and executing the step S126;
s125, reporting the adhesion fault of the main and negative relays to a VCU of the vehicle controller by the insulation detection module IM, and controlling the main and negative relays, the pre-charging relay, the PTC relay, the SPC relay and the heating relay to be disconnected;
s126, an insulation detection module IM detects whether the PTC control system, the charger control system, the oil pump control system and the motor control system have faults or not, if yes, the step S128 is executed, and if not, the step S127 is executed;
s127, the insulation detection module IM sequentially controls the PTC relay, the SPC relay and the pre-charging relay to be closed, high-voltage power supply of high-voltage electric equipment is completed, and the whole vehicle enters a READY state;
and S128, the insulation detection module IM reports the fault of the electric equipment to the VCU of the vehicle control unit, and controls the PTC relay, the SPC relay, the main negative relay, the heating relay and the pre-charging relay to be disconnected.
Fig. 4 is a flowchart of a second safety control method for the new energy vehicle insulation module according to the embodiment of the present invention, where the method specifically includes the following steps:
s21, the mobile terminal sends a high-voltage component remote starting instruction, wherein the high-voltage component remote starting instruction is a PTC heater remote starting instruction, a battery pack heater remote starting instruction, a charging remote starting instruction or an oil pump remote starting instruction;
s22, the T-box receives a high-voltage component remote starting instruction sent by the mobile terminal, converts the high-voltage component remote starting instruction into a CAN communication instruction message and uploads the CAN communication instruction message to a CAN line;
s23, the insulation detection module IM reads a high-voltage component remote start instruction from the CAN line;
s24, the insulation detection module IM carries out insulation detection based on the high-voltage component remote starting instruction, and the junction edge detection method specifically comprises the following steps:
s241, the insulation detecting module IM detects whether the insulation resistance value is within the set resistance value range, if so, step S242 is executed, and if not, step S243 is executed.
S242, the insulation detection module IM judges whether the main relay and the negative relay are adhered, if the detection result is yes, the step S244 is executed, and if the detection result is no, the step S245 is executed;
s243, the insulation detection module IM reports the insulation fault to a VCU of the vehicle control unit and controls a main negative relay, a pre-charging relay, a PTC relay and an SPC relay to be disconnected, and the VCU controller and a heating relay report the primary fault to an instrument;
s244, enabling the main and negative relays by the insulation detection module IM, completing the high-voltage electrification of the DCDC, and executing the step S246;
s245, the insulation detection module IM reports the adhesion fault of the main and negative relays to the VCU of the vehicle controller, and controls the main and negative relays, the pre-charging relay, the PTC relay, the SPC relay and the heating relay to be disconnected;
s246, an insulation detection module IM detects whether the PTC control system, the charger control system, the oil pump control system and the motor control system have faults or not, if yes, the step S248 is executed, and if not, the step S247 is executed;
s247, the insulation detection module IM requests the relay of the high-voltage equipment corresponding to the remote starting instruction of the high-voltage component to be closed and requests the high-voltage equipment corresponding to the remote starting instruction of the high-voltage component to be started;
and S248, the insulation detection module IM reports the fault of the electric equipment to the VCU of the vehicle control unit, and controls the PTC relay, the SPC relay, the pre-charging relay and the heating relay of the main negative relay to be disconnected.
In the embodiment of the present invention, after step S23, the method further includes:
s25, detecting whether a whole vehicle key signal exists or not based on the high-voltage component remote starting command, if so, executing a step S26, and if not, executing a step S24;
s26, the insulation detection module IM uploads the high-voltage component remote start failure instruction to the T-box through the CAN line, the T-box receives and analyzes the high-voltage component remote start failure instruction, the high-voltage component remote start failure instruction is uploaded and fed back to the mobile terminal, and the insulation detection module IM enters a dormant state.
The safety control method of the new energy automobile insulation module disclosed by the invention has the following beneficial effects: the insulation detection module IM carries out high-voltage safety detection based on an insulation resistance value detection mechanism, relay adhesion and high-voltage component faults, perfects a safety verification mechanism of the high-voltage component, reduces the high-voltage electric shock risk of the work of vehicle electric equipment, detects the generation of the faults in real time, protects each high-voltage electric equipment in time by disconnecting the relay, and increases the electric safety of the high-voltage electric equipment; the insulation detection module IM directly detects and processes the high-voltage fault, and the high-voltage fault can be timely fed back and processed.
The invention has been described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the specific implementation in the above-described manner, and it is within the scope of the invention to apply the inventive concept and solution to other applications without substantial modification.
Claims (5)
1. A safety control system of a new energy automobile insulation module is characterized by comprising:
the insulation detection module IM is in communication connection with the main negative relay, the PTC relay, the SPC relay, the OBC relay, the heating relay and the pre-charging relay through the CAN line, the VCU of the whole vehicle controller, the PTC controller and the OBC controller, the SPC controller and the MCU controller.
2. A safety control method of a new energy automobile insulation module based on a safety control system of the new energy automobile insulation module is characterized by specifically comprising the following steps:
the insulation detection module IM carries out insulation detection by sending a whole vehicle READY control instruction or a high-voltage component remote starting instruction based on a whole vehicle controller VCU;
and if the insulation detection is safe, performing relevant actions of the whole vehicle READY control instruction or the instruction in the high-voltage component remote starting instruction.
3. The safety control method of the new energy automobile insulation module according to claim 2, characterized in that if the insulation detection module IM receives a complete vehicle READY control command from the complete vehicle controller VCU, the following steps are executed:
s11, the VCU of the vehicle controller sends a READY control command of the vehicle;
s12, the insulation detection module IM enters insulation detection based on the whole vehicle READY control instruction, and the insulation detection specifically comprises the following steps;
s121, the insulation detection module IM detects whether the insulation resistance value is in a set resistance value range, if so, the step S122 is executed;
s122, the insulation detection module IM judges whether the main relay and the negative relay are adhered, if so, the step S124 is executed;
s124, enabling the main and negative relays by the insulation detection module IM, completing the high-voltage electrification of the DCDC, and executing the step S126;
s126, an insulation detection module IM detects whether the PTC control system, the charger control system, the oil pump control system and the motor control system have faults or not, and if no faults exist, the step S127 is executed;
and S127, the insulation detection module IM sequentially controls the PTC relay, the SPC relay and the pre-charging relay to be closed, high-voltage power supply of the high-voltage electric equipment is completed, and the whole vehicle enters a READY state.
4. The safety control method of the new energy automobile insulation module according to claim 2, wherein if the insulation detection module IM receives a high-voltage component remote start instruction sent by the mobile terminal, the following steps are performed:
s21, the mobile terminal sends a remote starting instruction of the high-voltage component;
s22, the T-box receives a high-voltage component remote starting instruction sent by the mobile terminal, converts the high-voltage component remote starting instruction into a CAN communication instruction message and uploads the CAN communication instruction message to a CAN line;
s23, the insulation detection module IM reads a high-voltage component remote start instruction from the CAN line;
s24, the insulation detection module IM carries out insulation detection based on the high-voltage component remote starting instruction, and the junction edge detection method specifically comprises the following steps:
s241, the insulation detection module IM detects whether the insulation resistance value is in a set resistance value range, if so, the step S122 is executed;
s242, the insulation detection module IM judges whether the main relay and the negative relay are adhered, if so, the step S244 is executed;
s244, enabling the main and negative relays by the insulation detection module IM, completing the high-voltage electrification of the DCDC, and executing the step S246;
s246, detecting whether the PTC control system, the charger control system, the oil pump control system and the motor control system have faults or not by the insulation detection module IM, and executing a step S127 if no faults exist;
and S247, the insulation detection module IM requests the relay of the corresponding high-voltage equipment of the remote starting instruction of the high-voltage component to be closed, and requests the corresponding high-voltage equipment of the remote starting instruction of the high-voltage component to be started.
5. The safety control method of the new energy vehicle insulation module according to claim 4, further comprising, after the step S23:
s25, detecting whether a whole vehicle key signal exists or not based on the high-voltage component remote starting command, if so, executing a step S26, and if not, executing a step S24;
s26, the insulation detection module IM uploads the high-voltage component remote start failure instruction to the T-box through the CAN line, the T-box receives and analyzes the high-voltage component remote start failure instruction, the high-voltage component remote start failure instruction is uploaded and fed back to the mobile terminal, and the insulation detection module IM enters a dormant state.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114019274A (en) * | 2021-10-26 | 2022-02-08 | 深圳市道通合创新能源有限公司 | Detection tool and method for high-voltage component and detection system for new energy automobile |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030030440A1 (en) * | 2000-02-22 | 2003-02-13 | Masaki Yugou | Circuit for detecting leakage in power supply |
| JP2013150421A (en) * | 2012-01-18 | 2013-08-01 | Honda Motor Co Ltd | Electric vehicle |
| CN206049561U (en) * | 2016-08-30 | 2017-03-29 | 四川永贵科技有限公司 | High voltage power supply distributes cartridge |
| CN107490750A (en) * | 2016-10-21 | 2017-12-19 | 宝沃汽车（中国）有限公司 | Electric vehicle and its insulation detecting method, device and system |
| CN108437803A (en) * | 2018-05-10 | 2018-08-24 | 江苏祥华车业有限公司 | A kind of low voltage control high pressure powering method of high speed new energy electric motor vehicle |
| WO2019037632A1 (en) * | 2017-08-21 | 2019-02-28 | 上海蔚来汽车有限公司 | Electric vehicle power-on method based on wake-up sources |
| CN110303905A (en) * | 2019-06-24 | 2019-10-08 | 中国第一汽车股份有限公司 | A kind of commercial automobile-used high pressure topological structure of pure electric vehicle and power-on and power-off control method |
-
2019
- 2019-12-31 CN CN201911417979.1A patent/CN111038266B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030030440A1 (en) * | 2000-02-22 | 2003-02-13 | Masaki Yugou | Circuit for detecting leakage in power supply |
| JP2013150421A (en) * | 2012-01-18 | 2013-08-01 | Honda Motor Co Ltd | Electric vehicle |
| CN206049561U (en) * | 2016-08-30 | 2017-03-29 | 四川永贵科技有限公司 | High voltage power supply distributes cartridge |
| CN107490750A (en) * | 2016-10-21 | 2017-12-19 | 宝沃汽车（中国）有限公司 | Electric vehicle and its insulation detecting method, device and system |
| WO2019037632A1 (en) * | 2017-08-21 | 2019-02-28 | 上海蔚来汽车有限公司 | Electric vehicle power-on method based on wake-up sources |
| CN108437803A (en) * | 2018-05-10 | 2018-08-24 | 江苏祥华车业有限公司 | A kind of low voltage control high pressure powering method of high speed new energy electric motor vehicle |
| CN110303905A (en) * | 2019-06-24 | 2019-10-08 | 中国第一汽车股份有限公司 | A kind of commercial automobile-used high pressure topological structure of pure electric vehicle and power-on and power-off control method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114019274A (en) * | 2021-10-26 | 2022-02-08 | 深圳市道通合创新能源有限公司 | Detection tool and method for high-voltage component and detection system for new energy automobile |
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