CN113815420A - Collision detection control method and system of electric automobile and electric automobile - Google Patents
Collision detection control method and system of electric automobile and electric automobile Download PDFInfo
- Publication number
- CN113815420A CN113815420A CN202010564171.2A CN202010564171A CN113815420A CN 113815420 A CN113815420 A CN 113815420A CN 202010564171 A CN202010564171 A CN 202010564171A CN 113815420 A CN113815420 A CN 113815420A
- Authority
- CN
- China
- Prior art keywords
- vehicle
- collision
- controlling
- battery pack
- seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000005474 detonation Methods 0.000 claims description 24
- 230000003068 static effect Effects 0.000 claims description 8
- 238000012545 processing Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 206010014357 Electric shock Diseases 0.000 description 5
- 230000001133 acceleration Effects 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 230000001960 triggered effect Effects 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000005059 dormancy Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007958 sleep Effects 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
- 230000002618 waking effect Effects 0.000 description 1
Images
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
- B60L3/0007—Measures or means for preventing or attenuating collisions
-
- 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
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
- B60R21/0136—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to actual contact with an obstacle, e.g. to vehicle deformation, bumper displacement or bumper velocity relative to the vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R2021/01204—Actuation parameters of safety arrangents
- B60R2021/01211—Expansion of air bags
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R2021/01204—Actuation parameters of safety arrangents
- B60R2021/01252—Devices other than bags
- B60R2021/01265—Seat belts
Abstract
The invention discloses a collision detection control method and system of an electric automobile and the electric automobile, wherein the method comprises the following steps: acquiring the collision condition of the body of the electric automobile in a target mode; wherein the target mode comprises one of a drivable mode, a charging mode and a stationary high-voltage power-on mode; and controlling the voltage under the high voltage of the whole vehicle when the vehicle body is collided. The scheme of the invention can detect the collision condition in time, avoid potential safety hazard and improve safety.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to a collision detection control method and system for an electric automobile and the electric automobile.
Background
At present, an electric vehicle collision detection System is mainly controlled by an SDM (Supplemental Restraint System Diagnostic Module). When collision happens, the collision sensor sends a collision signal to ignite the air bag, the safety belt is pre-tensioned and can send a high-voltage power-down signal, so that the high-voltage power supply of the electric automobile is disconnected after the collision accident happens, and secondary electric shock injury to personnel due to high-voltage exposure after the accident happens is avoided.
However, the SDM is in the wake-up working state only when the vehicle is powered on, and the SDM is in the sleep state, and cannot detect a collision signal, so that the safety processing cannot be performed in time when the vehicle collides, and the problem of potential safety hazard is caused if the whole vehicle is still in the high-voltage power-on state.
Disclosure of Invention
In order to solve the technical problems, the invention provides a collision detection control method and system for an electric automobile and the electric automobile, and solves the problems that in the prior art, when the automobile collides, safety processing cannot be timely performed, and if the whole automobile is in a high-voltage power-on state, potential safety hazards of electric shock exist.
According to an aspect of the present invention, there is provided a collision detection control method of an electric vehicle, including:
acquiring the collision condition of the body of the electric automobile in a target mode; wherein the target mode comprises one of a drivable mode, a charging mode and a stationary high-voltage power-on mode;
and controlling the voltage under the high voltage of the whole vehicle when the vehicle body is collided.
Optionally, after controlling the voltage of the whole vehicle under high voltage, the method further includes:
and controlling the pre-tightening safety belt and/or controlling the detonation state of the safety air bag according to the user information in the vehicle.
Optionally, the controlling the pre-tightening safety belt and/or the controlling the detonation state of the airbag according to the user information in the vehicle includes:
under the condition that user information in the vehicle indicates that a person is in a first seat in the vehicle and a safety belt is fastened, controlling an air bag corresponding to the first seat to be in a fully opened detonation state, and controlling a pre-tightening device to pre-tighten the safety belt on the first seat;
and under the condition that the in-vehicle user information indicates that a person is in a second seat in the vehicle and the user in the second seat does not fasten a safety belt, controlling the safety airbag corresponding to the second seat to be in a detonation state of incomplete opening.
Optionally, in the case that it is determined that the vehicle body is collided, the method further includes:
acquiring a collision type of a vehicle body, wherein the collision type comprises at least one of a front collision, a side collision and a rear collision.
Optionally, the method further includes:
when the electric automobile is in the target mode, determining whether the battery pack deforms;
and when the battery pack is determined to be deformed, the main positive relay and the main auxiliary relay in the battery pack are controlled to cut off the power source output.
Optionally, the determining whether the battery pack is deformed includes:
acquiring the deformation state and the running state of the battery pack;
and determining whether the battery pack deforms or not according to the deformation state and the running state.
According to another aspect of the present invention, there is provided a collision detection control system of an electric vehicle, including:
the first acquisition module is used for acquiring the collision condition of the electric automobile body in a target mode; wherein the target mode comprises one of a driving mode, a charging mode and a static high voltage power-on mode;
and the auxiliary control module is used for controlling the voltage under the high voltage of the whole vehicle under the condition that the vehicle body is collided.
Optionally, the system further includes:
and the first control module is used for controlling the pretension safety belt and/or controlling the detonation state of the safety air bag according to the user information in the vehicle.
Optionally, the control module includes:
the first control submodule is used for controlling an airbag corresponding to a first seat to be in a fully opened detonation state and controlling a pre-tightening device to pre-tighten a safety belt on the first seat under the condition that user information in the vehicle indicates that a person is on the first seat in the vehicle and the safety belt is fastened;
and the second control submodule is used for controlling the safety airbag corresponding to the second seat to be in an incompletely opened detonation state under the condition that the in-vehicle user information indicates that a person is on the second seat in the vehicle and the user on the second seat does not fasten a safety belt.
Optionally, in the case that it is determined that the vehicle body is collided, the system further includes:
and the second acquisition submodule is used for acquiring the collision type of the vehicle body, and the collision type comprises at least one of a front collision, a side collision and a rear collision.
Optionally, the system further includes:
the first determination module is used for determining whether the battery pack deforms or not when the vehicle is in the target mode;
and the second control module is used for controlling a main positive relay and a main auxiliary relay in the battery pack to cut off the power source output when the battery pack is determined to be deformed.
Optionally, the first determining module includes:
the acquisition unit is used for acquiring the deformation state and the running state of the battery pack;
and the determining unit is used for determining whether the battery pack deforms or not according to the deformation state and the running state.
According to still another aspect of the present invention, there is provided an electric vehicle including the collision detection control system of the electric vehicle as described above.
The embodiment of the invention has the beneficial effects that:
according to the scheme, the collision condition of the vehicle body of the electric vehicle in the target mode is obtained; wherein the target mode comprises one of a drivable mode, a charging mode and a stationary high-voltage power-on mode; and controlling the voltage under the high voltage of the whole vehicle when the vehicle body is collided. The collision signal can be detected in time, the potential safety hazard of electric shock is avoided, and the safety is improved.
Drawings
FIG. 1 is a flow chart of a collision detection control method for an electric vehicle according to an embodiment of the present invention;
FIG. 2 is a second flowchart of a collision detection control method for an electric vehicle according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a body impact sensor distribution of an electric vehicle according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a battery pack according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a control architecture of a collision detection system according to an embodiment of the invention;
fig. 6 shows a third flowchart of a collision detection control method for an electric vehicle according to an embodiment of the invention;
fig. 7 is a block diagram showing a collision detection control system for an electric vehicle according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
As shown in fig. 1, an embodiment of the present invention provides a collision detection control method for an electric vehicle, including:
in the step, the vehicle-feasible mode comprises a driving state and a Ready state; the charging mode includes: direct current charging, alternating current charging, wireless charging, vehicle-to-vehicle charging VTOV, and vehicle-to-load discharging VTOL mode.
Specifically, when the vehicle runs, a Battery Management System (BMS) is awakened, the entire vehicle mode is determined by the BMS, the collision condition of the vehicle body is acquired by the SDM when the electric vehicle is determined to be in the target mode, and the collision deformation condition of the Battery pack is acquired by the BMS.
And 102, controlling the voltage under the high voltage of the whole vehicle under the condition that the vehicle body is collided.
In the embodiment, when the whole vehicle is determined to be in one of the driving mode, the charging mode and the static high-voltage power-on mode, the collision condition of the vehicle body of the electric vehicle in the target mode is obtained, and the high-voltage power-on of the whole vehicle is timely controlled when the collision occurs, so that the potential safety hazard of electric shock is avoided, and the safety of the whole vehicle is improved.
As shown in fig. 2, in an alternative embodiment, after the step 102, the method further includes:
and 103, controlling the pre-tightening safety belt and/or controlling the detonation state of the safety air bag according to the user information in the vehicle.
Specifically, the step 103 may include the following two cases:
the first condition is as follows:
under the condition that user information in the vehicle indicates that a person is in a first seat in the vehicle and a safety belt is fastened, controlling an air bag corresponding to the first seat to be in a fully opened detonation state, and controlling a pre-tightening device to pre-tighten the safety belt on the first seat;
case two:
and under the condition that the in-vehicle user information indicates that a person is in a second seat in the vehicle and the user in the second seat does not fasten a safety belt, controlling the safety airbag corresponding to the second seat to be in a detonation state of incomplete opening.
In this embodiment, for example, the passenger compartment occupant status may be detected by a Vehicle Control Unit (VCU). The states of a driver and a passenger in a passenger compartment (user information in the vehicle) are monitored by a seat sensor and a safety belt detection sensor when collision occurs, and the hidden danger brought to personnel by triggering an air bag is analyzed and judged logically by a VCU of the vehicle control unit. When a person is detected in the vehicle and the safety belt is fastened, the vehicle control unit VCU sends a primary driving safety air bag instruction to the air bag controller SDM, the inflatable air bag is detonated and is completely opened, and meanwhile, the vehicle control unit VCU sends a pre-tightening instruction to the safety belt pre-tightening device to pre-tighten the safety belt; when no person or person in the vehicle is detected and the safety belt is not fastened, the VCU of the vehicle control unit sends a secondary driving safety air bag instruction to the air bag controller SDM, the air bag is not completely detonated and is slowly opened, and the situation that the safety air bag is completely triggered and secondary damage to a person is possibly caused can be avoided.
In an embodiment, in the case where it is determined that the vehicle body is collided, the method further includes:
acquiring a collision type of a vehicle body, wherein the collision type comprises at least one of a front collision, a side collision and a rear collision.
In the embodiment, the limitation that the direct collision detection system can only detect the driving working condition and is only limited to direct collision and side collision is broken through, the safety performance of the pure electric vehicle is greatly improved, and the personal safety of a driver and passengers is protected in the largest range.
Specifically, vehicle body collision sensors are distributed on the front part, the left side, the right side and the rear part of a vehicle to receive vehicle body collision impact waveforms to judge and detect collision signals when a front collision, a side collision and a rear collision occur to the vehicle, the collision signals are transmitted to an air bag controller SDM, the air bag controller SDM judges the type of the collision through processing and analyzing, triggers the collision signals to a vehicle control unit VCU, drives an air bag detonation circuit in a grading mode according to a VCU instruction, and opens the air bag. As in fig. 3, a schematic diagram of the body impact sensor a and SDM communication connections is shown.
In an embodiment, the method further comprises: when the electric automobile is in the target mode, determining whether the battery pack deforms; and when the battery pack is determined to be deformed, the main positive relay and the main auxiliary relay in the battery pack are controlled to cut off the power source output. When the battery pack is determined to be deformed, the whole vehicle is controlled to be powered off in time, and the potential electric shock hazard can be avoided.
Specifically, the determining whether the battery pack is deformed includes:
acquiring the deformation state and the running state of the battery pack;
and determining whether the battery pack deforms or not according to the deformation state and the running state.
For example, the deformation state of the battery pack can be detected by strain sensors uniformly distributed on the shell of the battery pack (such as the inner side of the shell); the operation state of the battery pack can be detected through a battery pack impact acceleration sensor arranged on the battery pack (such as the middle position); and further, a battery management system BMS is used for analyzing the information of the two sensors to judge whether the battery pack is deformed due to collision or not, and if the battery pack is deformed due to collision, a main relay, a secondary relay and a power source output are directly cut off. As shown in fig. 4, a schematic diagram of the connection of the strain gauge sensor B and the acceleration sensor on the battery pack to the BMS is shown.
It is to be noted that the case where the control power battery pack is considered to be deformed in the stationary state of the vehicle can be excluded by the operating state.
The present invention will be described in more detail below with reference to a specific embodiment of the present invention.
Referring to fig. 5 and fig. 6, a flow example and a system architecture diagram of a collision detection control method for an electric vehicle according to an embodiment of the present invention are shown.
Wherein, as in fig. 5, the system comprises:
the detection module 1 for detecting vehicle body collision is mainly composed of a vehicle body collision sensor, an SDM (airbag controller), a driving circuit, an airbag detonation circuit and an airbag. The vehicle body collision sensors are distributed on the front part, the left side, the right side and the rear part of the vehicle, receive vehicle body collision impact waveforms to judge and detect collision signals when a front collision, a side collision and a rear collision occur to the vehicle, and transmit the collision signals to the air bag controller SDM, the air bag controller SDM judges the type of the collision through processing and analyzing, triggers the collision signals to the vehicle control unit VCU, drives the safety air bag detonation circuit in a grading mode according to the VCU instructions, and the safety air bag is opened.
And the collision auxiliary module 2 comprises a seat sensor, a safety belt detection sensor, a safety belt pre-tightening device and a vehicle control unit VCU. The seat sensor and the safety belt detection sensor mainly monitor states of a driver and passengers in a passenger cabin when collision occurs, hidden dangers brought to personnel by triggering the safety air bag are analyzed through logic judgment of a VCU of the vehicle control unit, the situation that the personnel in the vehicle ties the safety belt is found, an instruction is sent to the air bag controller SDM, a primary driving safety air bag mechanism is triggered, otherwise, a secondary driving safety air bag mechanism is executed, and the situation that the safety air bag is completely triggered to possibly bring secondary injury to the personnel is avoided.
The battery pack collision detection device comprises a detection block 3 for detecting the collision of a battery pack, a battery pack strain sensor, a battery pack impact acceleration sensor, a battery management system BMS and related devices inside the battery pack. The strain sensors of the battery pack are uniformly distributed on the inner side of the battery pack shell and can detect the deformation state of the battery pack; the battery pack impact acceleration sensor is arranged at the middle position of the battery pack and used for detecting the running state of the battery pack; the battery management system BMS synthesizes two kinds of sensor information and analyzes, judges whether the battery package is in collision deformation, and if the battery package is in collision deformation, the main and auxiliary relays inside the battery package are directly cut off, and the power source output is cut off.
Further, as shown in fig. 6, the steps of the collision detection control method of this embodiment include:
a. when the vehicle runs, the battery management system BMS is awakened;
b. the BMS judges the whole vehicle mode; step c is executed when the vehicle is in a plurality of modes of a driving mode, a charging mode (including a direct current charging mode, an alternating current charging mode, a wireless charging mode, a vehicle-to-vehicle charging VTOV mode and a vehicle-to-load discharging VTOL mode) and a static high-voltage mode;
c. the battery management system BMS awakens the air bag controller SDM; then executing steps d and e;
d. the air bag controller SDM starts to work to detect whether the vehicle body is collided or not; when collision occurs, controlling the whole vehicle to be powered off, detecting the personnel state of the passenger compartment by the VCU of the whole vehicle controller, and executing the step f;
e. the battery management system BMS detects whether the battery pack is deformed due to collision. When the vehicle body collision is detected, the battery management system BMS directly cuts off a main relay, a secondary relay and a power source output in the battery pack;
f. detecting whether a person is present;
g. detecting whether a safety belt is fastened;
specifically, when a person is detected in the vehicle and the safety belt is fastened, the vehicle control unit VCU sends a primary driving safety air bag instruction to the air bag controller SDM, the inflatable air bag is detonated and is completely opened, and meanwhile, the vehicle control unit VCU sends a pre-tightening instruction to the safety belt pre-tightening device to pre-tighten the safety belt; when the fact that no person exists in the vehicle or the fact that a person exists and a safety belt is not fastened is detected, the VCU sends a secondary driving safety air bag instruction to the air bag controller SDM, and the air bag is not completely detonated and is slowly opened. When the battery pack is detected to be deformed due to collision, the battery management system BMS directly cuts off a main relay, a main relay and an auxiliary relay inside the battery pack, and the power source output is cut off.
It should be noted that the above solution mainly differs from the conventional collision system in the following aspects:
(1) the collision detection system can realize the omnibearing collision detection of direct collision, side collision and back collision.
(2) The collision detection system provided by the invention can monitor the vehicle state in the high-voltage modes of driving, charging and static by waking up the safety airbag controller SDM through the battery management system BMS according to the whole vehicle mode, and can normally trigger a related collision protection mechanism when collision occurs.
(3) The collision detection system is additionally provided with a battery collision detection module which is independent of a vehicle body collision detection processing system, and when the collision deformation of the battery is found, the relay is immediately disconnected, and the power output is cut off.
(4) According to the vehicle body collision detection processing system in the collision detection system, the safety air bags and the pre-tightening safety belts can be subjected to graded explosion according to the condition of people in the vehicle according to the vehicle collision auxiliary module, so that secondary damage to the people caused by the bouncing of the air bags is avoided.
Corresponding to the method embodiment, the embodiment of the invention also provides a collision detection control system of the electric automobile. The following describes a collision detection control system for an electric vehicle according to an embodiment of the present invention.
As shown in fig. 7, the collision detection control system of an electric vehicle in the embodiment of the present invention includes:
the first obtaining module 701 is used for obtaining the collision condition of the electric automobile in the target mode; wherein the target mode comprises one of a driving mode, a charging mode and a static high voltage power-on mode;
and the auxiliary control module 702 is used for controlling the voltage under the high voltage of the whole vehicle under the condition that the vehicle body is collided.
Optionally, the system further includes:
and the first control module is used for controlling the pretension safety belt and/or controlling the detonation state of the safety air bag according to the user information in the vehicle.
Optionally, the first control module includes:
the first control submodule is used for controlling an airbag corresponding to a first seat to be in a fully opened detonation state and controlling a pre-tightening device to pre-tighten a safety belt on the first seat under the condition that user information in the vehicle indicates that a person is on the first seat in the vehicle and the safety belt is fastened;
and the second control submodule is used for controlling the safety airbag corresponding to the second seat to be in an incompletely opened detonation state under the condition that the in-vehicle user information indicates that a person is on the second seat in the vehicle and the user on the second seat does not fasten a safety belt.
Optionally, the system further includes:
and the second acquisition submodule is used for acquiring the collision type of the vehicle body, and the collision type comprises at least one of a front collision, a side collision and a rear collision.
Optionally, the system further includes:
the first determination module is used for determining whether the battery pack deforms or not when the vehicle is in the target mode;
and the second control module is used for controlling a main positive relay and a main auxiliary relay in the battery pack to cut off the power source output when the battery pack is determined to be deformed.
Optionally, the first determining module includes:
the acquisition unit is used for acquiring the deformation state and the running state of the battery pack;
and the determining unit is used for determining whether the battery pack deforms or not according to the deformation state and the running state.
The system is a system installation corresponding to the method embodiment, all implementation manners in the method embodiment are applicable to the system installation embodiment, and the technical effects same as those of the method embodiment can be achieved.
In addition, the invention also provides an electric automobile which comprises the collision detection control system of the electric automobile.
The current collision detection system of the electric automobile only detects collision under the condition that the automobile has speed, and under the working conditions of vehicle static and charging, the SDM can not detect collision signals in dormancy, and can not timely perform safety processing when collision occurs, so that potential safety hazards exist.
The invention designs a collision detection control system of an electric automobile, which can monitor whether the automobile collides under the working conditions of driving, static high voltage and charging, can detect front collision, side collision, rear collision and battery pack collision deformation at the same time, timely triggers a collision safety protection mechanism and indicates to cut off power output when abnormity occurs, analyzes and grades the detonation safety airbag and the pre-tightening safety belt according to the personnel condition in the automobile, breaks through the limitation that the front collision detection system can only detect the driving working condition and is only limited to the front collision and the side collision, greatly improves the safety performance of the pure electric automobile, and protects the personal safety of a driver and passengers in the largest range.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.
Claims (13)
1. A collision detection control method of an electric vehicle, characterized by comprising:
acquiring the collision condition of the body of the electric automobile in a target mode; wherein the target mode comprises one of a drivable mode, a charging mode and a stationary high-voltage power-on mode;
and controlling the voltage under the high voltage of the whole vehicle when the vehicle body is collided.
2. The method of claim 1, wherein after controlling the entire vehicle to operate at a high voltage, the method further comprises:
and controlling the pre-tightening safety belt and/or controlling the detonation state of the safety air bag according to the user information in the vehicle.
3. The method for controlling collision detection of an electric vehicle according to claim 2, wherein the controlling of the pretensioned seat belt and/or the controlling of the state of detonation of the airbag based on the user information in the vehicle includes:
under the condition that user information in the vehicle indicates that a person is in a first seat in the vehicle and a safety belt is fastened, controlling an air bag corresponding to the first seat to be in a fully opened detonation state, and controlling a pre-tightening device to pre-tighten the safety belt on the first seat;
and under the condition that the in-vehicle user information indicates that a person is in a second seat in the vehicle and the user in the second seat does not fasten a safety belt, controlling the safety airbag corresponding to the second seat to be in a detonation state of incomplete opening.
4. The collision detection control method of an electric vehicle according to claim 1, wherein in a case where it is determined that a collision of a vehicle body occurs, the method further comprises:
acquiring a collision type of a vehicle body, wherein the collision type comprises at least one of a front collision, a side collision and a rear collision.
5. The collision detection control method of an electric vehicle according to claim 1, characterized by further comprising:
when the electric automobile is in the target mode, determining whether the battery pack deforms;
and when the battery pack is determined to be deformed, the main positive relay and the main auxiliary relay in the battery pack are controlled to cut off the power source output.
6. The method according to claim 5, wherein the determining whether the battery pack is deformed includes:
acquiring the deformation state and the running state of the battery pack;
and determining whether the battery pack deforms or not according to the deformation state and the running state.
7. A collision detection control system of an electric vehicle, characterized by comprising:
the first acquisition module is used for acquiring the collision condition of the electric automobile body in a target mode; wherein the target mode comprises one of a driving mode, a charging mode and a static high voltage power-on mode;
and the auxiliary control module is used for controlling the voltage under the high voltage of the whole vehicle under the condition that the vehicle body is collided.
8. The collision detection control system of an electric vehicle according to claim 7, characterized in that the system further comprises:
and the first control module is used for controlling the pretension safety belt and/or controlling the detonation state of the safety air bag according to the user information in the vehicle.
9. The collision detection control system of an electric vehicle according to claim 8, characterized in that the first control module includes:
the first control submodule is used for controlling an airbag corresponding to a first seat to be in a fully opened detonation state and controlling a pre-tightening device to pre-tighten a safety belt on the first seat under the condition that user information in the vehicle indicates that a person is on the first seat in the vehicle and the safety belt is fastened;
and the second control submodule is used for controlling the safety airbag corresponding to the second seat to be in an incompletely opened detonation state under the condition that the in-vehicle user information indicates that a person is on the second seat in the vehicle and the user on the second seat does not fasten a safety belt.
10. The collision detection control system of an electric vehicle according to claim 7, characterized in that the system further comprises:
and the second acquisition submodule is used for acquiring the collision type of the vehicle body, and the collision type comprises at least one of a front collision, a side collision and a rear collision.
11. The collision detection control system of an electric vehicle according to claim 7, characterized in that the system further comprises:
the first determination module is used for determining whether the battery pack deforms or not when the vehicle is in the target mode;
and the second control module is used for controlling a main positive relay and a main auxiliary relay in the battery pack to cut off the power source output when the battery pack is determined to be deformed.
12. The collision detection control system of an electric vehicle according to claim 11, wherein the first determination module includes:
the acquisition unit is used for acquiring the deformation state and the running state of the battery pack;
and the determining unit is used for determining whether the battery pack deforms or not according to the deformation state and the running state.
13. An electric vehicle characterized by comprising the collision detection control system of an electric vehicle according to any one of claims 7 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010564171.2A CN113815420A (en) | 2020-06-19 | 2020-06-19 | Collision detection control method and system of electric automobile and electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010564171.2A CN113815420A (en) | 2020-06-19 | 2020-06-19 | Collision detection control method and system of electric automobile and electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113815420A true CN113815420A (en) | 2021-12-21 |
Family
ID=78912032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010564171.2A Pending CN113815420A (en) | 2020-06-19 | 2020-06-19 | Collision detection control method and system of electric automobile and electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113815420A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11170959A (en) * | 1997-12-12 | 1999-06-29 | Mazda Motor Corp | Airbag control device for vehicle, and occupant condition detection device for vehicle |
| JP2011217544A (en) * | 2010-03-31 | 2011-10-27 | Honda Motor Co Ltd | Vehicle control system and electric vehicle |
| WO2013004426A1 (en) * | 2011-07-05 | 2013-01-10 | Robert Bosch Gmbh | Activation of a control device for switching off the high voltage system |
| CN202676820U (en) * | 2012-05-29 | 2013-01-16 | 浙江吉利汽车研究院有限公司杭州分公司 | Collision detection device for electric automobile power battery pack |
| CN103448555A (en) * | 2013-06-24 | 2013-12-18 | 浙江吉利汽车研究院有限公司杭州分公司 | Electric car charging collision control method and system |
| CN206639884U (en) * | 2017-02-28 | 2017-11-14 | 深圳市沃特玛电池有限公司 | A kind of electrokinetic cell bag protection device |
| CN207078010U (en) * | 2017-06-29 | 2018-03-09 | 北京新能源汽车股份有限公司 | Control system is collided during charging electric vehicle |
| CN207773079U (en) * | 2018-01-31 | 2018-08-28 | 长城汽车股份有限公司 | The charging safety control system and vehicle of electric vehicle |
| CN208264001U (en) * | 2018-05-11 | 2018-12-21 | 长城汽车股份有限公司 | A kind of charge protection system and vehicle |
-
2020
- 2020-06-19 CN CN202010564171.2A patent/CN113815420A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11170959A (en) * | 1997-12-12 | 1999-06-29 | Mazda Motor Corp | Airbag control device for vehicle, and occupant condition detection device for vehicle |
| JP2011217544A (en) * | 2010-03-31 | 2011-10-27 | Honda Motor Co Ltd | Vehicle control system and electric vehicle |
| WO2013004426A1 (en) * | 2011-07-05 | 2013-01-10 | Robert Bosch Gmbh | Activation of a control device for switching off the high voltage system |
| CN202676820U (en) * | 2012-05-29 | 2013-01-16 | 浙江吉利汽车研究院有限公司杭州分公司 | Collision detection device for electric automobile power battery pack |
| CN103448555A (en) * | 2013-06-24 | 2013-12-18 | 浙江吉利汽车研究院有限公司杭州分公司 | Electric car charging collision control method and system |
| CN206639884U (en) * | 2017-02-28 | 2017-11-14 | 深圳市沃特玛电池有限公司 | A kind of electrokinetic cell bag protection device |
| CN207078010U (en) * | 2017-06-29 | 2018-03-09 | 北京新能源汽车股份有限公司 | Control system is collided during charging electric vehicle |
| CN207773079U (en) * | 2018-01-31 | 2018-08-28 | 长城汽车股份有限公司 | The charging safety control system and vehicle of electric vehicle |
| CN208264001U (en) * | 2018-05-11 | 2018-12-21 | 长城汽车股份有限公司 | A kind of charge protection system and vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0531989B2 (en) | Side collision sensor system for side airbag apparatus | |
| CA2151224C (en) | Method and apparatus for providing a deployment signal for a vehicle occupant restraint device during a side impact crash | |
| US10843656B2 (en) | Side airbag device | |
| KR101394414B1 (en) | A vehicle battery safety system | |
| JP3783925B2 (en) | Car occupant protection device | |
| CN105905061A (en) | Seat adjusting device with tailgating protection function and seat adjusting method | |
| CN112193196B (en) | Vehicle with a steering wheel | |
| CN113815420A (en) | Collision detection control method and system of electric automobile and electric automobile | |
| JPH1129003A (en) | Starting device of occupant protective device | |
| JP2004284382A (en) | Occupant protective device | |
| US11472360B2 (en) | Restraint system operating method and restraint system for vehicle having detachable doors | |
| CN105094107A (en) | Control method of safety diagnosis module in rear collision of vehicle | |
| JP2009101837A (en) | Occupant protective control device | |
| KR20080007723A (en) | Method for controlling doorlock/unlock of a vehicle | |
| KR100527929B1 (en) | Apparatus for setting off explosive of automobile parts | |
| CN218228917U (en) | Air bag control system and vehicle | |
| KR20070060569A (en) | Passenger air back unfold control method | |
| JP3709686B2 (en) | Airbag system for vehicles | |
| JP4203814B2 (en) | Vehicle occupant protection device | |
| KR100644468B1 (en) | Apparatus for setting off explosive of automobile parts | |
| CN116353532B (en) | Occupant protection system for zero gravity seat and control method thereof | |
| CN217048543U (en) | Passenger safety protection system based on vehicle | |
| JP3709685B2 (en) | Airbag system for vehicles | |
| KR100776658B1 (en) | Accident happening automatic notice system for vehicle | |
| KR100447740B1 (en) | Control system of seat belt pretensioner for vehicles |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |