CN112060910A - Safe starting method and system based on electric vehicle - Google Patents
Safe starting method and system based on electric vehicle Download PDFInfo
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- CN112060910A CN112060910A CN202010846975.1A CN202010846975A CN112060910A CN 112060910 A CN112060910 A CN 112060910A CN 202010846975 A CN202010846975 A CN 202010846975A CN 112060910 A CN112060910 A CN 112060910A
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K28/00—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions
- B60K28/02—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver
- B60K28/06—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver responsive to incapacity of driver
- B60K28/063—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the driver responsive to incapacity of driver preventing starting of vehicles
Abstract
The embodiment of the specification discloses a safe starting method based on an electric vehicle, wherein a safe starting system of the electric vehicle comprises an alcohol detection module, a one-key starting module, a vehicle control unit, a gear controller, a brake pedal and a high-voltage module, wherein the safe starting method comprises the steps of obtaining vehicle door state information, brake pedal information and gear information of the electric vehicle; when the vehicle door state information, the brake pedal information and the gear information meet vehicle starting conditions, alcohol detection is carried out through the alcohol detection module, and a first alcohol concentration in the electric vehicle is obtained; after the first alcohol concentration is smaller than a preset threshold value and the one-key starting module controls the vehicle controller, the gear controller and the high-voltage module to pass self-checking, the vehicle controller controls the electric vehicle to start; and when the first alcohol concentration is not less than the preset threshold value, prohibiting the electric vehicle from starting.
Description
Technical Field
The embodiment of the specification relates to the technical field of vehicle safety, in particular to a safe starting method and system based on an electric vehicle.
Background
With the progress of industry and the development of economy, electric vehicles have become important tools for people to go out. However, people have to think about the potential hidden troubles of the automobile while enjoying the convenience and quickness brought by the electric vehicle. Moreover, the electric automobile has no engine, and the vehicle can move forward only by screwing the ignition key to the starting gear, so that accidents are easy to happen during starting.
The prior art is usually only aiming at safety belt inspection and vehicle door inspection before driving, and the electric vehicle can be started after the safety belt inspection and the vehicle door inspection are qualified, so that the driver can find that the driver drives the vehicle by wine after an accident occurs, and the probability of the accident during the driving by wine is higher.
Disclosure of Invention
The embodiment of the specification provides a safe starting method and a safe starting system based on an electric vehicle, which can effectively reduce the probability of drunk driving and reduce the probability of accidents under the condition of reducing the drunk driving probability.
The embodiment of the present specification provides, in a first aspect, a safe starting method based on an electric vehicle, where a safe starting system of the electric vehicle includes an alcohol detection module, a one-key starting module, a vehicle control unit, a gear controller, a brake pedal, and a high-voltage module, where the safe starting method includes:
acquiring the state information, the brake pedal information and the gear information of the electric vehicle door;
when the vehicle door state information, the brake pedal information and the gear information meet vehicle starting conditions, alcohol detection is carried out through the alcohol detection module, and a first alcohol concentration in the electric vehicle is obtained;
after the first alcohol concentration is smaller than a preset threshold value and the one-key starting module controls the vehicle controller, the gear controller and the high-voltage module to pass self-checking, the vehicle controller controls the electric vehicle to start; and
and when the first alcohol concentration is not less than the preset threshold value, the electric vehicle is prohibited from starting.
Optionally, the controlling the high voltage module to pass through the self-test includes:
if the high-voltage module comprises a motor unit, a battery unit and a high-voltage accessory unit, controlling the motor unit, the battery unit and the high-voltage accessory unit to perform self-inspection;
determining that the high-voltage module self-tests pass when the motor unit, the battery unit and the high-voltage accessory unit all pass the self-tests; and otherwise, determining that the self-test of the high-voltage module fails.
Optionally, if the high-voltage accessory unit includes an on-vehicle charger subunit, a DCDC subunit, an electric compressor subunit, and a heating subunit, controlling the high-voltage accessory unit to perform self-checking includes:
controlling the on-board charger subunit, the DCDC subunit, the electric compressor subunit and the heating subunit to perform self-checking;
determining that the high-voltage accessory unit passes self-inspection when the on-board charger subunit, the DCDC subunit, the electric compressor subunit and the heating subunit all pass self-inspection; otherwise, determining that the high-voltage accessory unit fails the self-test.
Optionally, the method further includes:
when the first alcohol concentration is smaller than the preset threshold value, displaying prompt information that the drunk driving test is passed on a display unit of the electric vehicle; and when the first alcohol concentration is not less than the preset threshold value, displaying first warning information that the drunk driving test fails on the display unit.
Optionally, after the electric vehicle is controlled by the vehicle controller to start, the method further includes:
performing alcohol detection through the alcohol detection module, acquiring a second alcohol concentration inside the electric vehicle, and acquiring the speed of the electric vehicle;
and when the second alcohol concentration is not less than the preset threshold value and the vehicle speed is less than a set speed, controlling the electric vehicle to be powered off through the vehicle controller.
Optionally, after obtaining the second alcohol concentration inside the electric vehicle and obtaining the vehicle speed of the electric vehicle, the method further includes:
and when the second alcohol concentration is not less than the preset threshold value and the vehicle speed is not less than the set speed, displaying third warning information of drunk driving on the display unit.
Optionally, after the third warning information of drunk driving is displayed on the display unit, the method further includes:
if the current speed of the electric vehicle is judged to be not less than the set speed, the electric vehicle is controlled to be in a limp mode through the vehicle control unit, and the current speed of the electric vehicle is controlled not to be greater than the set speed
Optionally, when the second alcohol concentration is not less than the preset threshold and the vehicle speed is not less than the set speed, the method further includes:
and controlling the lamp of the electric vehicle to be in a double-flash mode.
A second aspect of the embodiments of the present specification provides a safe starting system based on an electric vehicle, where the safe starting system includes an alcohol detection module, a one-key starting module, a vehicle control unit, a gear controller, a brake pedal, and a high-voltage module, and the alcohol detection module, the one-key starting module, the gear controller, the brake pedal, and the high-voltage module are all electrically connected to the vehicle control unit, where the safe starting system is configured to obtain vehicle door state information, brake pedal information, and gear information of the electric vehicle; when the vehicle door state information, the brake pedal information and the gear information meet vehicle starting conditions, alcohol detection is carried out through the alcohol detection module, and a first alcohol concentration in the electric vehicle is obtained; after the first alcohol concentration is smaller than a preset threshold value and the one-key starting module controls the vehicle controller, the gear controller and the high-voltage module to pass self-checking, the vehicle controller controls the electric vehicle to start; and when the first alcohol concentration is not less than the preset threshold value, prohibiting the electric vehicle from starting.
The beneficial effects of the embodiment of the specification are as follows:
based on the technical scheme, the state information, the brake pedal information and the gear information of the door of the electric vehicle are obtained; when the vehicle door state information, the brake pedal information and the gear information meet vehicle starting conditions, alcohol detection is carried out through the alcohol detection module, and a first alcohol concentration in the electric vehicle is obtained; when the first alcohol concentration is not less than the preset threshold value, the electric vehicle is prohibited from being started; so, when the electric motor car satisfies the vehicle starting condition, carry out the alcohol concentration detection, when the first alcohol concentration that detects is not less than and predetermines the threshold value, forbid the electric motor car and start to realized carrying out the alcohol detection when starting the electric motor car, when first alcohol concentration is less than and predetermines the threshold value, forbid starting the electric motor car, so, can effectively reduce the probability that wine drove, make the probability that the accident appears also reduce thereupon under the condition that the probability reduces is driven to wine.
Drawings
Fig. 1 is a structural block diagram of a safe starting system of an electric vehicle in an embodiment of the present specification;
fig. 2 is a flowchart of a method of a secure boot method in an embodiment of the present disclosure.
Detailed Description
In order to better understand the technical solutions, the technical solutions of the embodiments of the present specification are described in detail below with reference to the drawings and specific embodiments, and it should be understood that the specific features of the embodiments and embodiments of the present specification are detailed descriptions of the technical solutions of the embodiments of the present specification, and are not limitations of the technical solutions of the present specification, and the technical features of the embodiments and embodiments of the present specification may be combined with each other without conflict.
As shown in fig. 1, an embodiment of the present disclosure provides a safe starting system of an electric vehicle, where the safe starting system includes an alcohol detection module 10, a one-key starting module 11, a vehicle controller 12, a gear controller 13, a brake pedal 14, and a high-voltage module 15, and the alcohol detection module 10, the one-key starting module 11, the gear controller 12, the brake pedal 14, and the high-voltage module 15 are all electrically connected to the vehicle controller 12.
The high voltage module 15 includes a motor unit 151, a battery unit 152, and a high voltage accessory unit 153, and the high voltage accessory unit 153 includes an on-vehicle charger subunit 1531, a DCDC subunit 1532, an electric compressor subunit 1533, and a heating subunit 1533.
In the embodiment of the present disclosure, the alcohol detection module 10 may be an infrared alcohol detector, an electrochemical alcohol detector, a semiconductor alcohol detector, and the like, the one-key start module 11 may be an electric switch, and the vehicle control unit 12 may be a chip, a microprocessor, and the like.
In the embodiment of the present specification, the pointing unit 151 may be a motor, the battery unit 152 may be a fuel cell, a lithium battery, or the like, and the DCDC sub-unit 1532 serves to convert alternating current power into direct current power, or to convert direct current power into alternating current power; the heating subunit 1533 may be a PCT heating rod, a carbon fiber tube, or the like, and the present specification is not particularly limited.
Specifically, before the electric vehicle is started, whether the brake pedal 14 is pressed is detected, when the brake pedal 14 is pressed, a switching signal is sent to the vehicle control unit 12 through a control switch connected with the brake pedal 14, so that the vehicle control unit 12 obtains the switching signal, and obtains brake pedal information according to the switching signal, wherein the brake pedal information is used for representing whether the brake pedal 14 is pressed.
In the embodiment of the present description, the vehicle door state may be detected by the vehicle control unit 12; of course, as shown in fig. 1, the safety starting system may further include a vehicle body controller 16, detect the door status through the vehicle body controller 16, and transmit the detected door status information to the vehicle control unit 12 through the gateway 20.
Specifically, when the vehicle body controller 16 detects that the vehicle door state is closed, a vehicle door state signal is sent to the vehicle control unit 12, wherein the vehicle door state signal is vehicle door state information; the vehicle door state signal is sent to the vehicle body Controller 16 through a hard wire, the vehicle body Controller 16 sends the vehicle door state signal to the gateway 20 through a Controller Area Network (CAN), and the gateway 20 forwards the vehicle door state signal to the vehicle Controller 12, so that the vehicle Controller 12 obtains the vehicle door state information.
In the embodiment of the present specification, the gear information is acquired by the gear controller 13, and the gear information is sent to the vehicle control unit 16, so that the vehicle control unit 12 acquires the gear information. Specifically, for example, if the shift position controller 13 acquires that the shift position is ACC, it sends information that the shift position is ACC to the vehicle control unit 12.
In the embodiment of the present description, after acquiring the vehicle door state information, the brake pedal information and the gear information, the vehicle controller 12 determines whether the vehicle door state information, the brake pedal information and the gear information meet a vehicle starting condition, where the vehicle starting condition is that the brake pedal is in a stepped state, the gear is a preset gear, and the vehicle door is in a closed state; at this time, the preset gear is, for example, an ACC gear and a start (ON) gear, etc., and the present specification is not particularly limited.
Thus, after the vehicle controller 12 acquires the vehicle door state information, the brake pedal information and the gear information, if the vehicle door state information represents that the vehicle door is closed, the brake pedal information represents that the brake pedal is stepped down, and the gear is ACC or ON, the vehicle door state information, the brake pedal information and the gear information meet the vehicle starting condition; otherwise, the state information of the vehicle door, the information of the brake pedal and the gear information are judged to not meet the vehicle starting condition.
In the embodiment of the specification, when the vehicle control unit 12 determines that the vehicle door state information, the brake pedal information and the gear information meet the vehicle starting condition, the alcohol detection module 10 performs alcohol detection to obtain a first alcohol concentration inside the electric vehicle; then judging whether the first alcohol concentration is not less than a preset threshold value; if the first alcohol concentration is smaller than a preset threshold value, judging that the driver does not drink; and if the first alcohol concentration is not less than the preset threshold value, judging that the driver has drunk.
In the embodiment of the present specification, the preset threshold may be set according to an actual situation, for example, according to a space in an electric vehicle, a distance between a driver and the alcohol detection module 10, or may be set by a manual or safety starting system, and the present specification is not limited specifically.
Specifically, when alcohol detection is performed using the alcohol detection module 10, detection times may be set, and the detection times may be, for example, 5 seconds(s), 6s, 8s, and the like. At this time, the detection information during the alcohol detection may also be displayed on the display unit of the electric vehicle, and for example, the detection information such as "alcohol detection in progress" may be displayed.
In the embodiment of the present description, when the vehicle control unit 12 detects that the first alcohol concentration is not less than the preset threshold, the start of the electric vehicle is prohibited; at this time, first warning information indicating that the drunk driving test failed may be displayed on the display unit, and the first warning information may be, for example, "drunk driving is detected, starting of the vehicle is prohibited," drunk driving danger, and no driving.
In this embodiment, when the vehicle control unit 12 detects that the first alcohol concentration is less than the preset threshold, the electric vehicle is allowed to start; at the moment, prompt information that the drunk driving test passes can be displayed on the display unit; the prompt message may be, for example, "drunk driving test passed, vehicle start allowed," safe driving requested "or the like.
In this embodiment, when the vehicle control unit 12 detects that the first alcohol concentration is smaller than the preset threshold, the safe starting system further needs to perform self-checking. Of course, the self-test treatment may be performed simultaneously with or before the alcohol test, and the present description is not limited thereto.
Specifically, the safety starting system needs to acquire starting information of a starting switch before self-checking processing, and then performs self-checking processing after acquiring the starting information of the starting switch; at this time, the one-key starting module 11, the whole vehicle controller 12, the gear controller 13 and the high-voltage module 15 are controlled to perform self-checking, and when the one-key starting module 11, the whole vehicle controller 12, the gear controller 13 and the high-voltage module 15 all pass the self-checking, the electric vehicle is controlled to start; otherwise, the electric vehicle is prohibited from starting. After acquiring the starting information of the starting switch, the safety starting system sends a starting request to the vehicle control 12.
Specifically, since the high voltage module 15 includes the motor unit 151, the battery unit 152, and the high voltage accessory unit 153, the motor unit 151, the battery unit 152, and the high voltage accessory unit 153 need to be controlled to perform self-checking, and when the motor unit 151, the battery unit 152, and the high voltage accessory unit 153 all pass the self-checking, it is determined that the high voltage module 15 passes the self-checking; otherwise, it is determined that the self-test of the high voltage module 15 fails.
Specifically, since the high-voltage accessory unit 153 includes the on-board charger subunit 1531, the DCDC subunit 1532, the electric compressor subunit 1533, and the heating subunit 1533, the on-board charger subunit 1531, the DCDC subunit 1532, the electric compressor subunit 1533, and the heating subunit 1533 need to be controlled for self-checking; when the on-board charger subunit 1531, the DCDC subunit 1532, the electric compressor subunit 1533, and the heating subunit 1533 all pass the self-test, it is determined that the high-voltage accessory unit 153 passes the self-test; otherwise, it is determined that the high voltage accessory unit 153 has failed the self test.
In the embodiment of the present disclosure, when the one-touch start module 11, the vehicle control unit 12, the gear controller 13, and the high-voltage module 15 all perform self-test, before controlling the electric vehicle to start, the vehicle control unit 12 determines whether to allow the electric vehicle to start (allow high voltage to be applied) according to the relevant signals.
Specifically, when the driver presses the start switch, the start request is sent to the vehicle control unit 12, at this time, the safe start system performs self-checking on the one-key start module 11, the vehicle control unit 12, the shift controller 13, and the high-voltage module 15, and after the self-checking of the one-key start module 11, the vehicle control unit 12, the shift controller 13, and the high-voltage module 15 passes, high-voltage permission signals are sent to the vehicle control unit 12, where the high voltage is permitted when the self-checking of the battery unit 152 passes, the high voltage is permitted when the self-checking of the motor unit 151 passes, and the high voltage is permitted when the self-checking of the high-voltage accessory unit 153 passes.
When the driver starts the electric vehicle, the vehicle controller 12 allows the high voltage (that is, the vehicle controller 12 sends a high voltage command to the controller (BMS) of the battery unit 152 to close the BMS), when the following conditions are simultaneously satisfied, and the conditions specifically include: first, receiving a start request, second, allowing the battery unit 152 to increase the voltage; thirdly, the motor unit 151 allows high voltage; fourthly, detecting drunk driving; and fifth, the high voltage accessory unit 153 allows for high voltage.
In the embodiment of the present description, after the electric vehicle is controlled to start by the vehicle control unit 12, the alcohol detection module 10 further continues to perform alcohol detection, obtain a second alcohol concentration inside the electric vehicle, and obtain a speed of the electric vehicle; and if the second alcohol concentration is judged to be not less than the preset threshold value and the vehicle speed is less than the set speed, controlling the electric vehicle to be powered off through the vehicle controller 12. At this time, the vehicle controller 12 may control the electric vehicle to be powered off, and at the same time, the second warning information of drunk driving may be displayed on the display unit.
In the embodiment of the present specification, the set speed is set by a manual or safety starting system, and the set speed may be, for example, 5km/h, 6km/h, 8km/h, and the present specification is not particularly limited.
For example, when the set vehicle speed is 5km/h, after the electric vehicle is started, alcohol detection is continuously performed through the alcohol detection module 10, when the second alcohol concentration is detected to be not less than the preset threshold value and the vehicle speed is less than 5km/h, the vehicle control unit 12 controls the electric vehicle to be powered off forcibly, and the vehicle control unit 12 controls the instrument to display second warning information of 'detecting drunk driving and forbidding starting the vehicle'.
In an embodiment of the specification, after a second alcohol concentration inside the electric vehicle is acquired and the speed of the electric vehicle is acquired, if it is detected that the second alcohol concentration is not less than the preset threshold and the speed is not less than the set speed, third warning information of drunk driving is displayed on a display unit; and after the third warning information of drunk driving is displayed on the display unit, if the current speed of the electric vehicle is judged to be not less than the set speed, the electric vehicle is controlled to be in a limping mode through the vehicle control unit 12.
Specifically, after the electric vehicle is controlled to be in the limp home mode by the vehicle control unit 12, the current vehicle speed of the electric vehicle may be controlled not to be greater than the set speed,
in an embodiment of the present description, if it is detected that the second alcohol concentration is not less than the preset threshold and the vehicle speed is not less than the set speed, the vehicle lamp of the electric vehicle is controlled to be in the double-flash mode.
For example, when the set vehicle speed is 5km/h, after the electric vehicle is started, alcohol detection is continuously performed through the alcohol detection module 10, and when the second alcohol concentration is detected to be not less than the preset threshold value and the vehicle speed is greater than 5km/h, the vehicle controller 12 controls the instrument to display third warning information of 'detecting drunk driving and please stop at the side as soon as possible', and controls to turn on double flashing lights of the electric vehicle; after waiting for the set time, if the vehicle speed is still greater than 5km/h, the vehicle enters a limp home mode, and the vehicle speed is maintained at 5 km/h.
In the embodiment of the specification, after the safe starting system detects drunk driving, the vehicle control unit 12 records the detection result; after the electric vehicle is electrified at low voltage, the vehicle control unit 12 can clear the drunk driving record; when the vehicle is restarted, if the alcohol detection is passed, the electric vehicle is allowed to start.
Further, in the step S1, detecting a state of a door switch and a state of a start switch of the vehicle, and sending a start request signal to the vehicle control unit when the start switch of the vehicle is turned on; when the vehicle door is closed, a vehicle door state signal is sent to the vehicle control unit; the vehicle door state signal is sent to the vehicle body controller through a hard wire, the vehicle body controller sends the vehicle door state signal to the gateway through the CAN, and the gateway forwards the vehicle door state signal to the vehicle control unit. The one-key starting system sends a starting request signal to the gateway through the CAN, and the gateway forwards the starting signal to the vehicle control unit.
The beneficial effects of the embodiment of the specification are as follows:
based on the technical scheme, the state information, the brake pedal information and the gear information of the door of the electric vehicle are obtained; when the vehicle door state information, the brake pedal information and the gear information meet vehicle starting conditions, alcohol detection is carried out through the alcohol detection module, and a first alcohol concentration in the electric vehicle is obtained; when the first alcohol concentration is not less than the preset threshold value, the electric vehicle is prohibited from being started; so, when the electric motor car satisfies the vehicle starting condition, carry out the alcohol concentration detection, when the first alcohol concentration that detects is not less than and predetermines the threshold value, forbid the electric motor car and start to realized carrying out the alcohol detection when starting the electric motor car, when first alcohol concentration is less than and predetermines the threshold value, forbid starting the electric motor car, so, can effectively reduce the probability that wine drove, make the probability that the accident appears also reduce thereupon under the condition that the probability reduces is driven to wine.
As shown in fig. 2, a second aspect of the present invention provides a safe starting method based on an electric vehicle, where a safe starting system of the electric vehicle includes an alcohol detection module, a one-key starting module, a vehicle controller, a gear controller, a brake pedal, and a high-voltage module, where the safe starting method includes:
s201, obtaining the state information, the brake pedal information and the gear information of the electric vehicle door;
s202, when the vehicle door state information, the brake pedal information and the gear information meet vehicle starting conditions, alcohol detection is carried out through the alcohol detection module, and a first alcohol concentration in the electric vehicle is obtained;
s203, controlling the electric vehicle to start through the whole vehicle controller after the first alcohol concentration is smaller than a preset threshold value and the whole vehicle controller, the gear controller and the high-voltage module are controlled to pass self-checking through the one-key starting module; and
and S204, prohibiting the electric vehicle from starting when the first alcohol concentration is not less than the preset threshold value.
In an alternative embodiment, the controlling the high voltage module to pass the self test comprises:
if the high-voltage module comprises a motor unit, a battery unit and a high-voltage accessory unit, controlling the motor unit, the battery unit and the high-voltage accessory unit to perform self-inspection;
determining that the high-voltage module self-tests pass when the motor unit, the battery unit and the high-voltage accessory unit all pass the self-tests; and otherwise, determining that the self-test of the high-voltage module fails.
In an alternative embodiment, if the high-voltage accessory unit includes an on-vehicle charger subunit, a DCDC subunit, an electric compressor subunit, and a heating subunit, the controlling the high-voltage accessory unit to perform a self-test includes:
controlling the on-board charger subunit, the DCDC subunit, the electric compressor subunit and the heating subunit to perform self-checking;
determining that the high-voltage accessory unit passes self-inspection when the on-board charger subunit, the DCDC subunit, the electric compressor subunit and the heating subunit all pass self-inspection; otherwise, determining that the high-voltage accessory unit fails the self-test.
In an optional embodiment, the method further comprises:
when the first alcohol concentration is smaller than the preset threshold value, displaying prompt information that the drunk driving test is passed on a display unit of the electric vehicle; and when the first alcohol concentration is not less than the preset threshold value, displaying first warning information that the drunk driving test fails on the display unit.
In an optional embodiment, after controlling the electric vehicle to start by the vehicle controller, the method further includes:
performing alcohol detection through the alcohol detection module, acquiring a second alcohol concentration inside the electric vehicle, and acquiring the speed of the electric vehicle;
and when the second alcohol concentration is not less than the preset threshold value and the vehicle speed is less than a set speed, controlling the electric vehicle to be powered off through the vehicle controller.
In an optional embodiment, when the second alcohol concentration is not less than the preset threshold and the vehicle speed is less than a set speed, the method further includes:
and displaying second warning information of drunk driving on the display unit.
In an optional embodiment, after obtaining the second alcohol concentration inside the electric vehicle and obtaining the vehicle speed of the electric vehicle, the method further comprises:
and when the second alcohol concentration is not less than the preset threshold value and the vehicle speed is not less than the set speed, displaying third warning information of drunk driving on the display unit.
In an optional embodiment, after the third warning message of drunk driving is displayed on the display unit, the method further comprises:
if the current speed of the electric vehicle is judged to be not less than the set speed, the electric vehicle is controlled to be in a limp mode through the vehicle control unit, and the current speed of the electric vehicle is controlled not to be greater than the set speed
In an optional embodiment, when the second alcohol concentration is not less than the preset threshold and the vehicle speed is not less than the set speed, the method further includes:
and controlling the lamp of the electric vehicle to be in a double-flash mode.
While preferred embodiments of the present specification have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all changes and modifications that fall within the scope of the specification.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present specification without departing from the spirit and scope of the specification. Thus, if such modifications and variations of the present specification fall within the scope of the claims of the present specification and their equivalents, the specification is intended to include such modifications and variations.
Claims (10)
1. The safe starting method based on the electric vehicle is characterized in that a safe starting system of the electric vehicle comprises an alcohol detection module, a one-key starting module, a vehicle control unit, a gear controller, a brake pedal and a high-voltage module, wherein the safe starting method comprises the following steps of
Acquiring the state information, the brake pedal information and the gear information of the electric vehicle door;
when the vehicle door state information, the brake pedal information and the gear information meet vehicle starting conditions, alcohol detection is carried out through the alcohol detection module, and a first alcohol concentration in the electric vehicle is obtained;
after the first alcohol concentration is smaller than a preset threshold value and the one-key starting module controls the vehicle controller, the gear controller and the high-voltage module to pass self-checking, the vehicle controller controls the electric vehicle to start; and
and when the first alcohol concentration is not less than the preset threshold value, the electric vehicle is prohibited from starting.
2. The secure boot method of claim 1, wherein said controlling said high voltage module to pass a self test comprises:
if the high-voltage module comprises a motor unit, a battery unit and a high-voltage accessory unit, controlling the motor unit, the battery unit and the high-voltage accessory unit to perform self-inspection;
determining that the high-voltage module self-tests pass when the motor unit, the battery unit and the high-voltage accessory unit all pass the self-tests; and otherwise, determining that the self-test of the high-voltage module fails.
3. The secure boot method of claim 2, wherein if the high voltage accessory unit includes an onboard charger subunit, a DCDC subunit, a motor-compressor subunit, and a heating subunit, the controlling the high voltage accessory unit to perform a self-test comprises:
controlling the on-board charger subunit, the DCDC subunit, the electric compressor subunit and the heating subunit to perform self-checking;
determining that the high-voltage accessory unit passes self-inspection when the on-board charger subunit, the DCDC subunit, the electric compressor subunit and the heating subunit all pass self-inspection; otherwise, determining that the high-voltage accessory unit fails the self-test.
4. A secure boot method as recited in claim 3, wherein said method further comprises:
when the first alcohol concentration is smaller than the preset threshold value, displaying prompt information that the drunk driving test is passed on a display unit of the electric vehicle; and when the first alcohol concentration is not less than the preset threshold value, displaying first warning information that the drunk driving test fails on the display unit.
5. The secure launch method according to claims 1-4, wherein after controlling the electric vehicle to launch by the vehicle control unit, the method further comprises:
performing alcohol detection through the alcohol detection module, acquiring a second alcohol concentration inside the electric vehicle, and acquiring the speed of the electric vehicle;
and when the second alcohol concentration is not less than the preset threshold value and the vehicle speed is less than a set speed, controlling the electric vehicle to be powered off through the vehicle controller.
6. The safe starting method according to claim 5, wherein when the second alcohol concentration is not less than the preset threshold value and the vehicle speed is less than a set speed, the method further comprises:
and displaying second warning information of drunk driving on the display unit.
7. The safe starting method as claimed in claim 5, wherein after acquiring the second alcohol concentration inside the electric vehicle and acquiring the vehicle speed of the electric vehicle, the method further comprises:
and when the second alcohol concentration is not less than the preset threshold value and the vehicle speed is not less than the set speed, displaying third warning information of drunk driving on the display unit.
8. The safety startup method of claim 7, wherein after displaying third warning information of drunk driving on the display unit, the method further comprises:
and if the current speed of the electric vehicle is judged to be not less than the set speed, the electric vehicle is controlled to be in a limp mode through the whole vehicle controller, and the current speed of the electric vehicle is controlled not to be greater than the set speed.
9. The safe starting method according to claim 8, wherein when the second alcohol concentration is not less than the preset threshold value and the vehicle speed is not less than the set speed, the method further comprises:
and controlling the lamp of the electric vehicle to be in a double-flash mode.
10. A safe starting system based on an electric vehicle is characterized by comprising an alcohol detection module, a one-key starting module, a vehicle control unit, a gear controller, a brake pedal and a high-voltage module, wherein the alcohol detection module, the one-key starting module, the gear controller, the brake pedal and the high-voltage module are all electrically connected with the vehicle control unit, and the safe starting system is used for acquiring vehicle door state information, brake pedal information and gear information of the electric vehicle; when the vehicle door state information, the brake pedal information and the gear information meet vehicle starting conditions, alcohol detection is carried out through the alcohol detection module, and a first alcohol concentration in the electric vehicle is obtained; after the first alcohol concentration is smaller than a preset threshold value and the one-key starting module controls the vehicle controller, the gear controller and the high-voltage module to pass self-checking, the vehicle controller controls the electric vehicle to start; and when the first alcohol concentration is not less than the preset threshold value, prohibiting the electric vehicle from starting.
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