CN112659892B - Emergency control method and device for abnormal power failure flameout of vehicle and vehicle - Google Patents
Emergency control method and device for abnormal power failure flameout of vehicle and vehicle Download PDFInfo
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- CN112659892B CN112659892B CN202110064150.9A CN202110064150A CN112659892B CN 112659892 B CN112659892 B CN 112659892B CN 202110064150 A CN202110064150 A CN 202110064150A CN 112659892 B CN112659892 B CN 112659892B
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Abstract
The invention provides an emergency control method and device for abnormal power failure and flameout of a vehicle and the vehicle. The emergency control method for abnormal power-off flameout in the running process of the vehicle comprises the following steps: acquiring data signals of preset types of the vehicle, wherein the data signals of the preset types comprise at least two of the following data signals: ON gear electric signal, engine rotating speed message and vehicle speed message; judging whether the vehicle is abnormally powered off and flameout in the running process based on the data signal of the preset type; and when the abnormal power failure and flameout of the vehicle are judged in the running process, the vehicle is controlled to enter an intelligent power-ON mode so as to drive an ON gear relay to recover the power supply of the vehicle. The invention can immediately recover power supply and recover engine power when the vehicle is abnormally powered off and flameout, thereby ensuring driving safety.
Description
Technical Field
The invention relates to the technical field of vehicle control, in particular to an emergency control method and device for abnormal power failure and flameout of a vehicle and the vehicle.
Background
The existing vehicle ignition lock switch is divided into 4 gears: OFF, ACC, ON, START. When the ignition lock is in an OFF gear, the danger warning lamp can be used, and other functions cannot be used; when the ignition lock is in an ACC gear, functions of a vehicle event data recorder, an air conditioner control panel, a central control screen, a cigarette lighter and a small lamp can be used, and other functions cannot be used; when the ignition lock is in an ON gear, other functions of the vehicle can be used except that the engine can not be started; when the ignition lock is turned to the START gear, the engine is started.
In the running process of the vehicle, the situation that the ignition lock exits from an ON gear due to key shaking or mistaken contact of the legs of a driver occurs, so that the vehicle is powered off and flameout is caused; or the ignition lock and related line faults occur, so that the vehicle is powered off and flameout. When the vehicle is powered off and flameout during running, the engine cannot provide power, the power-assisted steering oil pump and the air supply pump can be failed, the steering and braking functions of the vehicle are abnormal, and the vehicle can possibly generate serious safety accidents.
Disclosure of Invention
The invention solves the problem that the engine can not provide power after power failure and flameout in the running process of the vehicle, which may cause safety accidents.
In order to solve the above problems, the present invention provides an emergency control method for abnormal power failure and flameout of a vehicle, comprising:
acquiring preset types of data signals of the vehicle, wherein the preset types of data signals comprise at least two of the following types: ON gear electric signal, engine rotating speed message and vehicle speed message;
judging whether the vehicle is abnormally powered off and flameout in the running process based on the data signal of the preset type;
and when the abnormal power failure and flameout of the vehicle are judged in the running process, the vehicle is controlled to enter an intelligent power-ON mode so as to drive an ON gear relay to recover the power supply of the vehicle.
Compared with the prior art, the method comprises the steps of obtaining a data signal of a preset type of the vehicle, judging whether the vehicle is abnormally powered off and flameout in the driving process based ON the data signal of the preset type, and controlling the vehicle to enter an intelligent power-ON mode to drive an ON gear relay when the vehicle is judged to be abnormally powered off and flameout in the driving process so as to recover power and rotating speed of a vehicle engine, guarantee driving safety and avoid safety accidents. In addition, the subsequent abnormal power-off flameout judgment is carried out by combining two or more data signals, so that the accuracy of judging the abnormal power-off flameout can be improved. In addition, because the vehicle speed message, the engine rotating speed message and the ON gear electric signal are distributed from different transmission lines, subsequent abnormal power-off flameout judgment is carried out through the combination of at least two data signals, the situation that a normal condition is judged to be abnormal power-off flameout due to a certain line fault can be avoided, and the accuracy of the abnormal power-off flameout judgment is improved.
Optionally, the preset type data signal includes an ON-gear electric signal, an engine rotation speed message and a vehicle speed message; the judging whether the vehicle is abnormally powered off and flameout in the driving process based on the data signals of the preset types comprises the following steps:
obtaining the engine rotating speed and the vehicle speed based on the engine rotating speed message and the vehicle speed message;
when the engine speed is greater than a first preset threshold value and the vehicle speed is greater than a second preset threshold value, judging whether the signal interruption duration of the ON gear electric signal, the engine speed message and the vehicle speed message is greater than a preset duration or not;
and if the signal interruption time lengths of the ON gear electric signal, the engine rotating speed message and the vehicle speed message are all longer than the preset time length, judging that the vehicle is abnormally powered off and flameout in the driving process.
Optionally, when it is determined that the vehicle is abnormally powered off and flameout during the running process, the method for controlling the vehicle to enter an intelligent power-ON mode to drive an ON-gear relay further includes:
when the speed of the vehicle is 0km/h, outputting flameout request information;
and when a flameout confirmation instruction triggered by the user based ON the flameout request information is detected, the drive of the ON gear relay is disconnected.
Optionally, after the turning off the driving of the ON-gear relay when the flameout confirmation instruction triggered by the user based ON the flameout request information is detected, the method further includes:
and when the fact that the vehicle is manually started through the ignition lock is detected, and the normal running time of the vehicle is larger than or equal to a preset time threshold value after the vehicle is manually started through the ignition lock, the intelligent power-on mode is exited.
Optionally, the emergency control method for abnormal power failure and flameout during driving of the vehicle further includes:
and when the vehicle is in the intelligent power-ON mode and a central control starting instruction input by a user is detected, driving the ON gear relay and then controlling the engine to start.
When the driver parks, when the vehicle can not be started through the ignition lock, the vehicle can be started through the central control screen, and the situation that the driver is trapped due to the fact that the vehicle cannot be started is avoided.
Optionally, when the vehicle is in the intelligent power-ON mode and a central control start instruction input by a user is detected, driving the ON relay, and before controlling the engine to start, the method further includes:
and outputting a selection prompt for judging whether to use a central control to start the vehicle or not, so that a user can input the central control starting instruction based ON the selection prompt, wherein the selection prompt is output after the drive of the ON gear relay is disconnected, or is output when a central control starting request input by the user is detected. The method has the advantages that the user can master the initiative under the other conditions that the vehicle cannot be normally started through the ignition lock, and the conditions that the vehicle cannot be started and the user is trapped due to the fact that a driver cannot maintain the vehicle after the vehicle is stopped and the ignition lock or a line is damaged are avoided.
Optionally, when it is determined that the vehicle is abnormally powered off and flameout during the running process, the method for controlling the vehicle to enter an intelligent power-ON mode to drive an ON-gear relay further includes:
and outputting abnormal power failure fault information and prompt information of the vehicle entering an intelligent power-on mode through an instrument and a central control screen of the vehicle. After the abnormal power-off flameout fault of the vehicle is detected, a driver is reminded to stop the vehicle for inspection, and the safe driving is guaranteed.
The invention also provides an emergency control device for abnormal power failure and flameout of a vehicle, which comprises the following components:
the vehicle body controller is used for acquiring data signals of preset types of the vehicle, and the data signals of the preset types comprise at least two of the following data signals: ON-gear electric signals, engine rotating speed messages and vehicle speed messages, and judging whether the vehicle is abnormally powered off and flameout in the driving process based ON the preset type data signals; and when the abnormal power failure and flameout of the vehicle are judged in the driving process, the vehicle is controlled to enter an intelligent power-ON mode so as to drive an ON gear relay and recover power supply of the vehicle.
Optionally, the vehicle body controller includes a relay driving output end, configured to drive the ON relay, so that the vehicle recovers power supply.
Compared with the prior art and the emergency control method for abnormal power-off flameout in the driving process of the vehicle, the emergency control device for abnormal power-off flameout in the driving process of the vehicle has the same advantages, and the detailed description is omitted.
The invention also provides a vehicle which comprises the emergency control device for abnormal power failure and flameout of the vehicle.
Compared with the prior art, the vehicle has the same advantages as the emergency control method for abnormal power failure and flameout in the running process of the vehicle, and the detailed description is omitted.
Drawings
FIG. 1 is a schematic diagram of a first embodiment of an emergency control method for abnormal power failure and flameout of a vehicle according to the present invention;
FIG. 2 is a schematic diagram of a second embodiment of the emergency control method for abnormal power failure and flameout of a vehicle according to the present invention;
FIG. 3 is a diagram of an embodiment of an emergency control device for abnormal power failure and flameout of a vehicle according to the present invention;
FIG. 4 is a schematic diagram of a circuit relay of an ignition lock gear in the emergency control device for abnormal power failure and flameout of a vehicle according to the invention;
FIG. 5 is a diagram illustrating another embodiment of the emergency control device for abnormal power failure and flameout of a vehicle according to the present invention;
FIG. 6 is a diagram of an embodiment of a flameout mode under an intelligent power-on mode in the emergency control method for abnormal power-off flameout of a vehicle according to the present invention;
FIG. 7 is a diagram illustrating an exemplary internal logic of the intelligent power-up mode in the emergency control method for abnormal power-off and power-off of the vehicle according to the present invention;
fig. 8 is a schematic view of an embodiment of the vehicle structure of the invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
The invention provides an emergency control method for abnormal power failure and flameout of a vehicle.
It should be noted that the following steps of the emergency Control method for abnormal power failure and flameout of a vehicle of the present invention are executed by a Body Control Module (BCM for short) of the vehicle.
Fig. 1 is a schematic flow chart of a first embodiment of an emergency control method for abnormal power failure and flameout of a vehicle according to the present invention. Referring to fig. 1, the emergency control method for abnormal power failure and flameout of a vehicle in a driving process comprises the following steps:
step S10, acquiring data signals of preset types of the vehicle, wherein the data signals of the preset types comprise at least two of the following data signals: an ON gear electric signal, an engine rotating speed message and a vehicle speed message.
The preset type of data signal may include an ON-shift electric signal, an engine speed message, or a vehicle speed message. As shown in fig. 5, the vehicle body controller is connected to the ON gear, the meter, and an engine ECU (Electronic Control Unit), the meter sends a vehicle speed message, the engine ECU sends an engine speed message, and the vehicle body controller can collect the vehicle speed message sent by the meter and the engine speed message sent by the engine ECU, and can also collect the ON gear electric signal. Optionally, the preset type of data signal includes at least two of: an ON gear electric signal, an engine rotating speed message and a vehicle speed message. The subsequent abnormal power-off flameout judgment is carried out by combining two or more data signals, so that the accuracy of judging the abnormal power-off flameout can be improved. Because the vehicle speed message, the engine rotating speed message and the ON gear electric signal are distributed from different transmission lines, subsequent abnormal power-off flameout judgment is carried out through the combination of at least two data signals, the condition that a normal condition is judged to be abnormal power-off flameout due to a certain line fault can be avoided, and the accuracy of the abnormal power-off flameout judgment is improved.
The data signals are collected in real time so as to find out abnormal conditions of the vehicle in time.
Optionally, when a data signal interruption is detected, the time of the data signal interruption is recorded, and the vehicle is timely found to be powered off.
And S20, judging whether the vehicle is abnormally powered off and flameout in the driving process based on the data signal of the preset type.
Through the data signal of the preset type, the state of the vehicle can be judged, whether the vehicle stalls or not is identified, whether the vehicle stalls or not is abnormally powered off or not is identified, and the condition that the vehicle does not stall or the vehicle stalls normally is eliminated.
When the vehicle is in the power-off flameout state, most systems of the vehicle are in the power-off state, data signal transmission is interrupted, and for example, the engine ECU can not send an engine rotating speed message.
In one embodiment, the predetermined type of data signal includes an ON shift electrical signal and an engine speed message. And when the detected engine rotating speed is higher than a certain rotating speed and the signal interruption time of the ON gear electric signal and the engine rotating speed message is longer than a certain time, judging that the vehicle is abnormally powered off and flameout. When the engine speed is detected to be higher than a certain speed, the signal of the ON gear electric signal or the engine speed message is not interrupted, or the signal interruption time is shorter than a certain duration, or the signal interruption time of the ON gear electric signal or the engine speed message is longer than a certain duration, but the engine speed is lower than a certain speed, the vehicle is judged not to be abnormally powered off and flameout.
In another embodiment, the preset type of data signal includes an ON-shift electric signal and a vehicle speed message. And when the detected vehicle speed is higher than a certain speed and the signal interruption time of the ON gear electric signal and the vehicle speed message is longer than a certain time, judging that the vehicle is abnormally powered off and flameout. When the detected speed is higher than a certain speed, the signal of the ON gear electric signal or the speed message is not interrupted, or the signal interruption time is shorter than a certain duration, or the signal interruption time of the ON gear electric signal and the speed message is longer than a certain duration but the speed of the vehicle is lower than a certain speed, at this moment, the vehicle is not abnormally powered off and flameout.
And S30, when the abnormal power failure and flameout of the vehicle are judged in the driving process, controlling the vehicle to enter an intelligent power-ON mode so as to drive an ON gear relay to enable the vehicle to recover power supply.
When the vehicle is abnormally powered off and flameout, the ON gear is powered off, and at the moment, the ON gear relay is driven to recover the power supply of the vehicle, so that the power and the rotating speed of the engine of the vehicle are recovered, and the driving safety is ensured.
The gear circuit of the vehicle ignition lock comprises a relay, as shown in fig. 4, after the coil end on the left side in the drawing is electrified, the coil generates magnetic force, the armature on the right side in the drawing is attracted, the reed is driven, the movable contact and the fixed contact are closed, the circuit on the right side is connected, after the coil on the left side is powered off, the electromagnetic force on the coil disappears, the armature on the right side returns to the original position, the movable contact and the fixed contact are separated, and the circuit on the right side is disconnected. The ON-off of the coil end of the related relay is controlled through the gear of the ignition lock, so that the ON-off of each gear circuit is indirectly controlled, if the ignition lock is opened to the position of the ON gear, the coil end of the ON gear relay is connected, the switching end circuit of the ON gear relay is connected, and the ON gear is electrified. Only after the power is switched ON in the ON gear, the ignition lock is switched ON to the START gear, and the engine can be started successfully.
Optionally, when it is determined that the vehicle is abnormally powered off and flameout during the running process, the step S30 is to control the vehicle to enter an intelligent power-ON mode to drive an ON-gear relay, so that after the vehicle recovers power supply, the method further includes: and outputting abnormal power failure fault information and prompt information of the vehicle entering an intelligent power-on mode through an instrument and a central control screen of the vehicle. After the vehicle is powered back, alarm information can be output, a driver is reminded through an instrument and a central control screen, and the vehicle ignition lock is checked by paying attention to parking beside.
In order to make the beneficial effects of the invention clearer, another emergency scheme for abnormal flameout of a vehicle, which is completely different from the invention, is provided: an emergency system for abnormal vehicle shut-down, comprising: the device comprises a controller, an energy accumulator, an electric inflating pump and an electric control valve; the controller is used for acquiring an abnormal flameout warning signal of the vehicle and sending control signals to the energy accumulator, the electric inflating pump and the electric control valve respectively based on the abnormal flameout warning signal; the electric control valve is changed from a closed state to a conducting state after receiving a first control signal sent by the controller, so that first hydraulic oil stored in the energy accumulator flows into a steering system of the vehicle; after receiving a second control signal sent by the controller, the energy accumulator conveys the first hydraulic oil to the steering system so as to enable the steering system to work normally; after receiving a third control signal sent by the controller, the electric inflation pump provides high-pressure air for a brake system of the vehicle, so that the brake system works normally. The technical scheme adds an energy accumulator, an electric inflating pump and an electric control valve, increases the use cost of the vehicle, and the technology only recovers the steering and braking functions of the vehicle and cannot recover the power supply of an ON gear and the running of an engine.
The method comprises the steps of acquiring a data signal of a preset type of the vehicle, judging whether the vehicle is abnormally powered off and flameout in the driving process based ON the data signal of the preset type, entering an intelligent power-ON mode when the abnormal power-off and flameout in the driving process of the vehicle are judged, driving an ON gear relay, restarting an engine of the vehicle before complete flameout, and restoring power supply to the vehicle so as to restore the power and the rotating speed of the engine of the vehicle, so that the driving safety is ensured, and safety accidents are avoided.
Fig. 2 is a flowchart illustrating a second embodiment of the emergency control method for abnormal power failure and flameout of a vehicle according to the present invention. Compared with the first embodiment, the preset type of data signal includes an ON-shift electric signal, an engine speed message, and a vehicle speed message, and step S20 in this embodiment is subdivided into step S21, step S22, and step S23. Referring to fig. 2, the emergency control method for abnormal power failure and flameout of a vehicle in the driving process comprises the following steps:
and step S10, acquiring a data signal of a preset type of the vehicle.
In this embodiment, the preset type of data signal includes an ON-shift electrical signal, an engine speed message, and a vehicle speed message, where the ON-shift electrical signal, the engine speed message, and the vehicle speed message are respectively sent by an ON-shift circuit, an engine ECU, and an instrument, that is, the three are from different lines, and whether the vehicle is running can be determined according to the engine speed and the vehicle speed, and whether the vehicle is powered off and stalled can be accurately determined according to the signal interruption duration of the ON-shift electrical signal, the engine speed message, and the vehicle speed message, so that whether the vehicle is abnormally powered off and stalled can be accurately determined by combining the ON-shift electrical signal, the engine speed message, and the vehicle speed message, and erroneous determination is avoided.
And S21, acquiring the engine rotating speed and the vehicle speed based on the engine rotating speed message and the vehicle speed message.
And analyzing the engine rotating speed message to obtain the rotating speed of the engine, and analyzing the vehicle speed message to obtain the vehicle speed.
And S22, when the engine speed is greater than a first preset threshold value and the vehicle speed is greater than a second preset threshold value, judging whether the signal interruption duration of the ON gear electric signal, the engine speed message and the vehicle speed message is greater than a preset duration.
And S23, if the signal interruption time of the ON gear electric signal, the engine rotating speed message and the vehicle speed message is longer than the preset time, judging that the vehicle is abnormally powered off and flameout in the driving process.
When the rotating speed of the engine is greater than a first preset threshold value and the vehicle speed is greater than a second preset threshold value, the vehicle is in the running process. Whether the vehicle is in the running process or not can be accurately judged through the rotating speed of the engine and the vehicle speed, mutual evidence can be obtained through judgment of the rotating speed of the engine and the vehicle speed, and misjudgment caused by trip faults of a line for transmitting an engine rotating speed message or a line for transmitting a vehicle speed message is avoided.
And when the vehicle is judged to be in the running process, detecting an ON gear electric signal, an engine rotating speed message and a vehicle speed message in real time, and recording the signal interruption duration when detecting that the three signals are interrupted. When the signal interruption time lengths of the three signals are all larger than the preset time length, the three lines are all powered off, and at the moment, the vehicle is flameout and powered off. When the signal interruption duration of the three signals is less than the preset duration, the vehicle is not flameout, and when the signal interruption duration of at least one signal in the three signals is less than the preset duration, the vehicle is also judged not to be flameout.
Optionally, a value range of the first preset threshold is 550 to 650 turns. The first preset threshold is preferably 600 revolutions. Optionally, a value range of the second preset threshold is 13km/h to 17km/h. The second preset threshold is preferably 15km/h. Optionally, the preset duration ranges from 250ms to 350ms, and the preset duration is preferably 300ms. The accuracy of judging whether the vehicle is abnormally powered off and flameout can be ensured by selecting a proper first preset threshold, a proper second preset threshold and a proper preset duration.
And S30, when the abnormal power failure and flameout of the vehicle are judged in the driving process, controlling the vehicle to enter an intelligent power-ON mode so as to drive an ON gear relay to enable the vehicle to recover power supply.
In one embodiment, when the vehicle speed exceeds 15km/h and the engine speed exceeds 600 revolutions, and the signal interruption duration of the ON gear electric signal, the engine speed message and the vehicle speed message exceeds 300ms, it is determined that the vehicle is abnormally powered off and flameout, the vehicle body controller immediately drives the ON gear relay to recover the power supply of the ON gear, the engine is restarted before complete flameout, the vehicle power is recovered, and the vehicle is normally operated.
Compared with the first embodiment and the second embodiment, step S30 in this embodiment, when it is determined that the vehicle is abnormally powered off and flameout during the running process, controls the vehicle to enter an intelligent power-ON mode to drive an ON-gear relay, so that the vehicle further includes, after power supply is restored: when the speed of the vehicle is 0km/h, outputting flameout request information; and when a flameout confirmation instruction triggered by the user based ON the flameout request information is detected, the drive of the ON gear relay is disconnected.
The flameout request message is a message that the vehicle body controller confirms whether to flameout with the user when detecting that the vehicle speed of the vehicle is 0. The output form may be various, such as display output or voice output, and for example, the misfire request message may be a dialog box as shown in fig. 6: the vehicle is currently in an intelligent power-on mode, and whether power is off or not is confirmed. The flameout request information can be output by the central control screen. The user triggers a flameout confirmation instruction by clicking a screen control or voice response and the like.
When a flameout confirmation instruction triggered by the user based ON the flameout request information is detected, the vehicle body controller drives the ON gear relay to enable the coil end of the ON gear relay to be connected, so that the switch end circuit of the ON gear relay is connected, and the ON gear is electrified. Under the control of the vehicle body controller, when the vehicle speed is 0km/h, the ON gear relay indicates that the driver possibly needs to stop and flameout, and at the moment, the drive of the ON gear relay is disconnected so as to smoothly flameout.
Compared with the first embodiment, the second embodiment and the third embodiment, the emergency control method for abnormal power-off and flameout of a vehicle in the driving process of the vehicle further comprises the following steps: and when the vehicle is in the intelligent power-ON mode and a central control starting instruction input by a user is detected, driving the ON gear relay and then controlling the engine to start.
And the central control starting command is a command for controlling the vehicle to start automatically. And a central control starting instruction is input through a vehicle button or a central control screen, so that the vehicle can drive the ON gear relay automatically to control the engine to start. After the driver parks, if the driver finds that the vehicle can not be started through the ignition lock, the vehicle can be started through the central control screen, and the situation that the driver is trapped due to the fact that the vehicle can not be started is avoided.
The central control starting instruction can be input by a user operating the central control screen, as shown in fig. 7, and the content shown in fig. 7 is output on the central control screen: the vehicle is in the intelligent power-on mode at present, please confirm whether to power on and start. When the user confirms that the power-ON is started, the vehicle body controller drives the ON gear relay to send a starting signal to the engine ECU so as to start the engine.
Optionally, after the disconnecting the driving of the ON-gear relay when the flameout confirmation instruction triggered by the user based ON the flameout request information is detected, the method further includes: and when the fact that the vehicle is manually started through the ignition lock is detected, and the normal running time of the vehicle is larger than or equal to a preset time threshold value after the vehicle is manually started through the ignition lock, the intelligent power-on mode is exited.
When the vehicle is in the intelligent power-ON mode, a flameout confirmation instruction is detected, and the drive of the ON gear relay is disconnected. And (4) a user overhauls the ignition lock, and if the ignition lock can be manually started, the intelligent power-on mode is exited when the normal running time of the vehicle is greater than or equal to the preset time threshold after the vehicle is manually started through the ignition lock so as to enable the vehicle to run normally.
Optionally, before the step of driving the ON relay and controlling the engine to start when the vehicle is in the intelligent power-ON mode and a central control start instruction input by a user is detected, the method further includes the following steps:
and outputting a selection prompt for judging whether to use the central control starting vehicle or not, so that a user can input the central control starting command based ON the selection prompt, wherein the selection prompt is output after the drive of the ON gear relay is disconnected, or is output when a central control starting request input by the user is detected.
After the vehicle has the abnormal power-off flameout fault, the vehicle body controller drives the ON gear relay to recover the power supply of the vehicle, but the abnormal power-off flameout fault is not solved fundamentally, and the fault possibly still exists in the ignition lock or other parts, so that a user (namely a driver) can not start the vehicle successfully through the ignition lock. Therefore, after the vehicle body controller disconnects the drive of the ON range relay, a selection prompt for starting the vehicle using the center control is output, and the selection prompt may be output in various output forms, such as, without limitation, a dialog box shown ON the left side of fig. 7, and an output such as a pop-up dialog box may be displayed ON the center control screen: the vehicle is in an intelligent power-on mode at present, and whether power-on starting is required to be confirmed; the output can be performed through the flashing of a button; and also by voice output. In addition, the user can also input the central control starting request actively so as to output the selection prompt, and under the condition that the vehicle cannot be started normally through the ignition lock, the user can master the initiative and the situation that the vehicle cannot be started and trapped by the user due to the fact that a driver cannot maintain the vehicle after parking and the ignition lock or a line is damaged is avoided.
In one embodiment, the user control screen output dialog box: whether the vehicle is started by using the intermediate control screen to simulate the ignition lock. The ignition lock is checked by the driver, and if the ignition lock can be normally started, the dialog box on the central control screen automatically disappears after the vehicle speed exceeds 20 km/h. If the driver finds that the ignition lock or the related line is damaged and the vehicle cannot be started through the ignition lock, the driver can click a dialog box of the central control screen, the central control screen sends an instruction to the vehicle body controller to activate an ON gear, the vehicle body controller drives an ON gear relay, and then the vehicle body controller sends an instruction to the engine ECU to start the engine.
The invention also provides an emergency control device for abnormal power failure and flameout of the vehicle. Referring to fig. 3 and 5, in one embodiment, the emergency control device for abnormal power failure and flameout of a vehicle includes: the vehicle body controller is used for acquiring a preset type of data signal of the vehicle and judging whether the vehicle is abnormally powered off and flameout in the running process based on the preset type of data signal; and when the abnormal power failure and flameout of the vehicle are judged in the running process, the vehicle is controlled to enter an intelligent power-ON mode so as to drive an ON gear relay to recover the power supply of the vehicle.
Optionally, the emergency control device for vehicle abnormal power failure and flameout further includes an ON-gear relay driving device, configured to drive the ON-gear relay when it is detected that the vehicle enters the intelligent power-ON mode, so that a coil of the ON-gear relay is closed, and the ON-gear is powered ON, so that the vehicle resumes power supply. The ON-gear relay driving device can be a device independent of the vehicle body controller.
Optionally, the vehicle body controller includes a relay driving output end for driving an ON-gear relay to recover power supply to the vehicle. As shown in fig. 3, the ON-gear relay is controlled by either one of the vehicle body controller (i.e. BCM in the figure) and the ignition lock controller, when the ignition lock fails and cannot drive the ON-gear relay, the vehicle body controller drives the ON-gear relay to close the coil of the ON-gear relay, so as to power ON the ON-gear. Therefore, the vehicle engine can be restarted before being completely shut down, and the power supply of the vehicle is recovered, so that the power and the rotating speed of the vehicle engine are recovered, the driving safety is ensured, and the safety accident is avoided.
Optionally, the preset type of data signal includes at least two of: an ON gear electric signal, an engine rotating speed message and a vehicle speed message. The subsequent abnormal power-off flameout judgment is carried out by combining two or more data signals, so that the accuracy of judging the abnormal power-off flameout can be improved. Because the vehicle speed message, the engine rotating speed message and the ON gear electric signal are distributed from different transmission lines, subsequent abnormal power-off flameout judgment is carried out through the combination of at least two data signals, the condition that a normal condition is judged to be abnormal power-off flameout due to a certain line fault can be avoided, and the accuracy of the abnormal power-off flameout judgment is improved.
Optionally, the preset type data signal includes an ON-gear electric signal, an engine rotation speed message and a vehicle speed message; the vehicle body controller is also used for specifically executing the following steps when judging whether the vehicle is abnormally powered off and flameout in the driving process based on the data signals of the preset type: obtaining the engine rotating speed and the vehicle speed based on the engine rotating speed message and the vehicle speed message; when the engine speed is greater than a first preset threshold value and the vehicle speed is greater than a second preset threshold value, judging whether the signal interruption duration of the ON gear electric signal, the engine speed message and the vehicle speed message is greater than a preset duration; and if the signal interruption time lengths of the ON gear electric signal, the engine rotating speed message and the vehicle speed message are all longer than the preset time length, judging that the vehicle is abnormally powered off and flameout in the driving process.
Optionally, the vehicle body controller is further configured to, when it is determined that the vehicle is abnormally powered off and flameout during running, control the vehicle to enter an intelligent power-ON mode to drive an ON-gear relay, so that after the vehicle recovers power supply, when the vehicle speed of the vehicle is 0km/h, flameout request information is output; and when a flameout confirmation instruction triggered by the user based ON the flameout request information is detected, the drive of the ON gear relay is disconnected.
Optionally, after the disconnecting the driving of the ON-gear relay when the flameout confirmation instruction triggered by the user based ON the flameout request information is detected, the method further includes:
and when the fact that the vehicle is manually started through the ignition lock is detected, and the normal running time of the vehicle is larger than or equal to a preset time threshold value after the vehicle is manually started through the ignition lock, the intelligent power-on mode is exited.
Optionally, the vehicle body controller is further configured to drive the ON relay and then control the engine to start when the vehicle is in the intelligent power-ON mode and a central control start instruction input by a user is detected.
Optionally, the vehicle body controller is further configured to, when the vehicle is in the intelligent power-ON mode and a central control start instruction input by a user is detected, drive the ON-gear relay, and before controlling the engine to start, execute a selection prompt for outputting whether to start the vehicle using the central control, so that the user inputs the central control start instruction based ON the selection prompt, where the selection prompt is output after the ON-gear relay is driven by the user is turned off, or output when a central control start request input by the user is detected.
Optionally, the vehicle body controller is further configured to, when it is determined that the vehicle is abnormally powered off and flameout during running, control the vehicle to enter an intelligent power-ON mode to drive an ON-gear relay, so that after the vehicle recovers power supply, the vehicle body controller executes outputting abnormal power-off fault information and prompt information that the vehicle enters the intelligent power-ON mode through an instrument and a central control screen of the vehicle. After the abnormal power-off flameout fault of the vehicle is detected, a driver is reminded to stop the vehicle for checking, and the safe driving is ensured.
Optionally, a value range of the first preset threshold is 550 to 650 revolutions, a value range of the second preset threshold is 13km/h to 17km/h, and a value range of the preset duration is 250ms to 350ms.
Compared with the prior art, the emergency control device for abnormal power failure and flameout of the vehicle has the advantages that the method is consistent with the emergency control method for abnormal power failure and flameout of the vehicle, and the detailed description is omitted.
The invention also provides a vehicle. As shown in fig. 8, in one embodiment, the vehicle includes the emergency control device for vehicle abnormal power failure and flameout as described above, and when the vehicle abnormal power failure and flameout is detected, the ON relay is driven to recover the power supply of the vehicle, thereby avoiding the failure of the power steering oil pump and the air supply pump due to the sudden power failure and flameout during the vehicle running, avoiding the abnormal steering and braking functions of the vehicle, and further avoiding the occurrence of safety accidents.
The vehicle here can be of various vehicle types, for example a tractor, but also a car, a lorry or the like.
Compared with the prior art, the vehicle has the beneficial effects consistent with the emergency control method for abnormal power failure and flameout of the vehicle, and the detailed description is omitted here.
In describing the present invention, it should be noted that the flow charts of the accompanying drawings illustrate logical sequences, but in some cases, the steps shown or described may be performed in a different order than presented here. Furthermore, the terms "first" and "second" are used for descriptive purposes only and to distinguish between different objects and are not to be construed as indicating or implying relative importance. The above "driver" and "user" have the same meaning.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, a division of a unit is merely a division of one logic function, and there may be other divisions when actually implemented, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed coupling or direct coupling or communication connection between each other may be through some communication interfaces, indirect coupling or communication connection between devices or units, and may be in an electrical, mechanical or other form.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still make modifications or changes to the embodiments described in the foregoing embodiments, or make equivalent substitutions for some features, within the scope of the disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein.
Claims (9)
1. An emergency control method for abnormal power failure and flameout of a vehicle is characterized by comprising the following steps:
acquiring a preset type of data signal of a vehicle, wherein the preset type of data signal comprises at least two of the following types: ON gear electric signal, engine rotating speed message and vehicle speed message;
based on the data signal of the preset type, whether the vehicle is abnormally powered off and flameout in the driving process is judged, and the method specifically comprises the following steps: obtaining the engine rotating speed and the vehicle speed based on the engine rotating speed message and the vehicle speed message; when the engine speed is greater than a first preset threshold value and the vehicle speed is greater than a second preset threshold value, judging whether the signal interruption duration of the ON gear electric signal, the engine speed message and the vehicle speed message is greater than a preset duration or not; if the signal interruption time lengths of the ON gear electric signal, the engine rotating speed message and the vehicle speed message are all longer than the preset time length, judging that the vehicle is abnormally powered off and flameout in the driving process;
and when the abnormal power failure and flameout of the vehicle are judged in the driving process, the vehicle is controlled to enter an intelligent power-ON mode so as to drive an ON gear relay and recover power supply of the vehicle.
2. The emergency control method for vehicle abnormal power failure and flameout according to claim 1, wherein after controlling the vehicle to enter an intelligent power-ON mode to drive an ON relay to recover power supply to the vehicle when it is determined that the vehicle is abnormally powered off and flameout during driving, further comprising:
when the speed of the vehicle is 0km/h, outputting flameout request information;
and when a flameout confirmation instruction triggered by the user based ON the flameout request information is detected, the drive of the ON gear relay is disconnected.
3. The emergency control method for abnormal power-off shutdown of a vehicle according to claim 2, further comprising, after the turning off the driving of the ON relay when the shutdown confirmation command triggered by the user based ON the shutdown request information is detected, further:
and when the fact that the vehicle is manually started through the ignition lock is detected, and the normal running time of the vehicle is larger than or equal to a preset time threshold value after the vehicle is manually started through the ignition lock, the intelligent power-on mode is exited.
4. The emergency control method for abnormal power outage and flameout of a vehicle according to claim 3, further comprising:
and when the vehicle is in the intelligent power-ON mode and a central control starting instruction input by a user is detected, driving the ON gear relay and then controlling the engine to start.
5. The emergency control method for vehicle abnormal power-off flameout according to claim 4, wherein before the step of driving the ON-gear relay and controlling the engine to start when the vehicle is in the intelligent power-ON mode and a central control start command input by a user is detected, the method further comprises:
and outputting a selection prompt for judging whether to use a central control to start the vehicle or not, so that a user can input the central control starting instruction based ON the selection prompt, wherein the selection prompt is output after the drive of the ON gear relay is disconnected, or is output when a central control starting request input by the user is detected.
6. The emergency control method for vehicle abnormal power failure and flameout according to any one of claims 1 and 3 to 5, wherein after controlling the vehicle to enter an intelligent power-ON mode to drive an ON relay to restore power supply to the vehicle when the vehicle is judged to be abnormally powered off and flameout during driving, the method further comprises:
and outputting abnormal power failure fault information and prompt information of the vehicle entering an intelligent power-on mode through an instrument and a central control screen of the vehicle.
7. An emergency control device for abnormal power failure and flameout of a vehicle is characterized by comprising:
a body controller for obtaining a preset type of data signal of the vehicle, the preset type of data signal including at least two of: ON gear electric signal, engine rotating speed message and vehicle speed message; based on the data signal of the preset type, whether the vehicle is abnormally powered off and flameout in the driving process is judged, and the method specifically comprises the following steps: obtaining the engine rotating speed and the vehicle speed based on the engine rotating speed message and the vehicle speed message; when the engine speed is greater than a first preset threshold value and the vehicle speed is greater than a second preset threshold value, judging whether the signal interruption duration of the ON gear electric signal, the engine speed message and the vehicle speed message is greater than a preset duration; if the signal interruption time lengths of the ON gear electric signal, the engine rotating speed message and the vehicle speed message are all larger than the preset time length, judging that the vehicle is abnormally powered off and flameout in the driving process; and when the abnormal power failure and flameout of the vehicle are judged in the driving process, the vehicle is controlled to enter an intelligent power-ON mode so as to drive an ON gear relay and recover power supply of the vehicle.
8. The emergency control device for vehicle abnormal power failure flameout according to claim 7, wherein the vehicle body controller comprises a relay driving output end for driving the ON-gear relay to restore the power supply to the vehicle.
9. A vehicle characterized by comprising the emergency control device for abnormal power outage and flameout of the vehicle according to claim 7 or 8.
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| CN202110064150.9A CN112659892B (en) | 2021-01-18 | 2021-01-18 | Emergency control method and device for abnormal power failure flameout of vehicle and vehicle |
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| CN202110064150.9A CN112659892B (en) | 2021-01-18 | 2021-01-18 | Emergency control method and device for abnormal power failure flameout of vehicle and vehicle |
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| CN113818514B (en) * | 2021-09-16 | 2022-09-09 | 中联重科土方机械有限公司 | Method, controller and device for judging flameout of excavator and excavator |
| CN113859156B (en) * | 2021-09-28 | 2023-12-22 | 中国北方车辆研究所 | Redundant intelligent power distribution management system for unmanned vehicles |
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