CN108340855B - Control method and control device for power supply main switch of vehicle - Google Patents
Control method and control device for power supply main switch of vehicle Download PDFInfo
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- CN108340855B CN108340855B CN201810043094.9A CN201810043094A CN108340855B CN 108340855 B CN108340855 B CN 108340855B CN 201810043094 A CN201810043094 A CN 201810043094A CN 108340855 B CN108340855 B CN 108340855B
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- 230000003139 buffering effect Effects 0.000 description 2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
- B60R16/033—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for characterised by the use of electrical cells or batteries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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Abstract
The invention provides a control method and a control device for a main power switch of a vehicle, wherein the control method for the main power switch of the vehicle comprises the following steps: receiving a command of closing or opening a power main switch sent by an external terminal; and according to the instruction, closing or opening the power main switch to cut off or connect the power supply loop outside the storage battery of the vehicle. According to the technical scheme, the remote wireless control and automatic control of the power supply main switch of the vehicle are realized, the possibility of power shortage of the storage battery of the vehicle is reduced, the possibility that the vehicle cannot be started due to the power shortage of the storage battery is further reduced, the working efficiency is improved, the power supply of the vehicle can be cut off by turning off the power supply main switch of the vehicle through the external terminal under an emergency condition, and the safety of the vehicle is improved.
Description
Technical Field
The invention relates to the technical field of vehicle control, in particular to a control method and a control device for a main power switch of a vehicle.
Background
According to the requirements of GB 7258 technical conditions for safety of motor vehicle operation: a special school bus is provided with a power supply main switch, and a passenger car with the length of more than or equal to 6m is provided with an electromagnetic power supply main switch; the passenger car with the car length of more than or equal to 6m is also provided with a manual mechanical power-off switch which can cut off the connection between the storage battery and all circuits. Meanwhile, the power shortage of the storage battery of the whole vehicle is considered, and the like, and general vehicles are provided with power supply main switches.
As shown in fig. 1, in the prior art, a general design is that a main power switch 12 is additionally arranged at the output end of a storage battery 14, the main power switch 12 is divided into a mechanical type and an electromagnetic type, the mechanical type switch is manually operated, and the electromagnetic type switch is controlled by a key or a switch in a cab. At present, the power supply main switch 12 has more problems, and a driver easily forgets to turn on or off the manual power supply main switch or the electromagnetic power supply main switch, so that the storage battery 14 is lack of power; secondly, due to the requirement of power supply of the whole vehicle, part of electrical equipment needs to be powered on by the normal power 10, and the switch cannot be turned off. When the battery 14 is further discharged, the vehicle engine 16 cannot be started, and complicated work such as externally connecting the battery 14 or temporarily charging is required for restarting.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
In view of the above, an object of the present invention is to provide a method for controlling a main power switch of a vehicle.
Another object of the present invention is to provide a power main switch control apparatus for a vehicle.
In order to achieve the above object, a first aspect of the present invention provides a power main switch control method for a vehicle, including: receiving a command of closing or opening a power main switch sent by an external terminal; and according to the instruction, closing or opening the power main switch to cut off or connect the power supply loop outside the storage battery of the vehicle.
Optionally, the method further comprises: detecting the residual electric quantity of a storage battery of the vehicle when a power supply main switch is in an opening state and an engine of the vehicle is in a flameout state; judging whether the residual electric quantity is larger than the preset electric quantity or not; when the residual electric quantity is not greater than the preset electric quantity, closing a main switch of the power supply to cut off an external power supply loop of the storage battery; when the residual electric quantity of the storage battery is larger than the preset electric quantity, detecting the current residual electric quantity of the storage battery every first preset time, and sending an alarm prompt and/or turning off a power supply main switch until the current residual electric quantity is not larger than the preset electric quantity so as to cut off an external power supply loop of the storage battery.
In any of the above technical solutions, further, the method further includes: detecting the control distance between an external terminal and a vehicle when a main power switch is in an on state and an engine is in a flameout state; judging whether the control distance is greater than a preset distance; when the control distance is greater than the preset distance, closing a power supply main switch to cut off an external power supply loop of the storage battery; when the control distance is not more than the preset distance, detecting the control distance between the external terminal and the vehicle every second preset time, and turning off a main power switch to cut off an external power supply loop of the storage battery until the current control distance is more than the preset distance; and after the power supply main switch is turned off, when an instruction for turning on the power supply main switch sent by an external terminal is received within a third preset time, turning on the power supply main switch, starting detection of the residual electric quantity, stopping detection of the control distance, and restarting detection of the control distance after next ignition and flameout of the engine, wherein the second preset time is longer than the third preset time.
Optionally, the method further comprises: detecting whether the engine is ignited or not after a fourth preset time length after the power supply main switch is in an on state and the engine is flamed out; or after receiving an instruction of starting a power supply main switch by an external terminal and starting the power supply main switch, detecting whether the engine is ignited or not through a fourth preset time length; if the engine is ignited, keeping the on state of the main power switch; if the engine is not ignited, the main power switch is closed; and after the power supply main switch is turned off, when an instruction for turning on the power supply main switch, which is sent by an external terminal, is received within a third preset time, the power supply main switch is turned on, the detection of the residual electric quantity is started, the detection of the ignition state is terminated, and the detection of the ignition state is restarted after the next ignition and flameout of the engine is carried out, wherein the fourth preset time is longer than the third preset time.
In any of the above technical solutions, further, receiving an instruction sent by an external terminal to turn off or turn on the power main switch, and turning off or turning on the power main switch according to the instruction specifically includes: the power supply control circuit receives an instruction of an external terminal through an instruction receiver arranged in the storage battery, and closes or opens a power supply main switch through a microcontroller arranged in the storage battery and electrically connected with the instruction receiver.
A second aspect of the present invention provides a power master switch control device for a vehicle, including: the command receiver is used for receiving a command of closing or opening the main power switch sent by an external terminal; and the microcontroller is used for closing or opening the main power switch according to the instruction received by the instruction receiver so as to cut off or connect a power supply loop outside the storage battery of the vehicle.
Further, still include: the first detection unit is used for detecting the residual electric quantity of a storage battery of the vehicle when a power main switch is in an on state and an engine is in a flameout state; the first judgment unit is used for judging whether the residual electric quantity is larger than the preset electric quantity or not; the microcontroller is also used for turning off the power supply main switch when the residual electric quantity is not greater than the preset electric quantity so as to cut off an external power supply loop of the storage battery; the microcontroller is also used for controlling the first detection unit to detect the current residual electric quantity of the storage battery every first preset time when the residual electric quantity of the storage battery is larger than the preset electric quantity, and controlling the first judgment unit to judge whether the current residual electric quantity is larger than the preset electric quantity, and sending an alarm prompt and/or turning off a power supply main switch until the current residual electric quantity is not larger than the preset electric quantity so as to cut off an external power supply loop of the storage battery.
In the above technical solution, further, the method further includes: the second detection unit is used for detecting the control distance between the external terminal and the vehicle when the power main switch is in an on state and the engine is in a flameout state; a second judgment unit for judging whether the control distance is greater than the preset distance; the microcontroller is also used for closing the power supply main switch when the control distance is greater than the preset distance so as to cut off an external power supply loop of the storage battery; the microcontroller is also used for detecting the control distance between the external terminal and the vehicle every second preset time when the control distance is not more than the preset distance, and turning off the main power switch to cut off the external power supply loop of the storage battery until the current control distance is more than the preset distance; the microcontroller is also used for starting the main power switch when receiving an instruction sent by an external terminal for starting the main power switch within a third preset time after the main power switch is turned off, starting the detection of the residual electric quantity, stopping the detection of the control distance, and restarting the detection of the control distance after the next ignition and flameout of the engine, wherein the second preset time is longer than the third preset time.
Optionally, the method further comprises: the third detection unit is used for detecting whether the engine is ignited or not after a fourth preset time length after the power supply main switch is in an on state and the engine is flamed out; or after receiving an instruction of starting a power supply main switch by an external terminal and starting the power supply main switch, detecting whether the engine is ignited or not through a fourth preset time length; the microcontroller is also used for keeping the starting state of the main power switch when the engine is ignited; the microcontroller is also used for turning off a main power switch when the engine is not ignited; the microcontroller is also used for starting the main power switch when receiving an instruction sent by an external terminal for starting the main power switch within a third preset time after the main power switch is turned off, starting the detection of the residual electric quantity, terminating the detection of the ignition state, and restarting the detection of the ignition state after the next ignition and flameout of the engine, wherein the fourth preset time is longer than the third preset time.
In any of the above solutions, optionally, the command receiver and the microcontroller are built in the battery and electrically connected to each other.
The invention has the beneficial effects that:
the power supply main switch is closed or opened by receiving an instruction of closing or opening the power supply main switch sent by an external terminal to a vehicle so as to cut off or connect a power supply loop of the storage battery to the outside, wireless control over the power supply main switch of the vehicle can be realized, and further, when a driver forgets to close the power supply main switch after leaving the vehicle, the external terminal can be used for closing the power supply main switch, so that the possibility of power shortage of the storage battery is reduced, the driver does not need to return to the vehicle again to close the power supply, the operation of the power supply main switch is simplified, and the labor intensity is reduced; the power supply main switches of a plurality of vehicles can be uniformly managed through facilities such as a large-scale control platform and the like so as to standardize the use of the vehicles and save the cost; meanwhile, the main power switch is automatically turned off or turned on according to the residual electric quantity of the storage battery or the distance between an external terminal and a vehicle, so that the main power switch of the vehicle is automatically controlled, the operation of the main power switch is further simplified, the labor intensity is reduced, and the possibility of power shortage of the storage battery due to the fact that the main power switch is manually controlled and is easily forgotten is reduced; meanwhile, the main power switch of the vehicle can be turned off through the external terminal under emergency conditions, and the power source of the vehicle is cut off, so that the risk is reduced, the safety of the vehicle is improved, or the main power switch of the vehicle is turned off through the external terminal when the vehicle is stolen, and the vehicle can be recovered conveniently.
It should be noted that the external terminal of the present invention may be a mobile terminal such as a mobile phone, a notebook computer, a wireless remote controller, etc., or may be an operation platform with a computer, which cannot move freely.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 shows a schematic diagram of a prior art vehicle power supply circuit;
fig. 2 shows a flowchart of a power master switch control method according to embodiment 1 of the invention;
fig. 3 is a flowchart showing a power master switch control method according to embodiment 2 of the invention;
fig. 4 is a flowchart showing a power master switch control method according to embodiment 3 of the invention;
fig. 5 is a flowchart showing a power master switch control method according to embodiment 4 of the invention;
fig. 6 is a flowchart showing a power master switch control method according to embodiment 5 of the invention;
fig. 7 is a block diagram showing a schematic configuration of a power supply main switch control apparatus according to embodiment 6 of the present invention;
fig. 8 is a schematic diagram showing a battery configuration of a power supply main switch control device according to embodiment 6 of the present invention.
Wherein, the corresponding relation between the reference numbers and the part names in fig. 1 is:
10 normal power, 12 power main switches, 14 storage batteries and 16 motors;
wherein, the correspondence between the reference numbers and the names of the components in fig. 8 is:
20 accumulators and 22 chips.
Detailed Description
So that the manner in which the above recited objects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
Some embodiments according to the invention are described below with reference to fig. 2 to 8.
Example 1
As shown in fig. 2, a power main switch control method of a work vehicle according to an embodiment of the present invention includes:
step 10: receiving a command of closing or opening a power main switch sent by an external terminal;
the general power master switch that all is equipped with in engineering vehicle, but mainly adopt mechanical type switch and electromagnetic type switch, two kinds of switches all need the driver to carry out manual operation, can only carry out manual operation in the driver's cabin even, this makes the driver forget easily and close master switch at busy engineering scene, lead to the circuit to keep in the connected state always, exceed after the certain time, can lead to the battery to lack of electricity, when the battery further discharges, can lead to the unable start-up of vehicle, need external battery or interim the charging when restarting, thereby increase the cost of labor, the time cost, reduce work efficiency. And because the whole car power supply requires, some electrical equipment need connect the normal electricity, the power master switch in the prior art can't cut off the circuit of above-mentioned electrical equipment, lead to the battery to lack of power with higher speed, but in the engineering work progress, sometimes because weather, working face, material are various reasons such as being uneven, can lead to the engineering vehicle can't put into operation for a long time, above-mentioned electrical equipment connects the normal electricity and has lost the meaning at this moment, can only waste the electric energy.
In addition, the engineering vehicle is frequently in and out of a construction site, various risk factors are more, the engineering vehicle is also a greater risk factor due to larger volume and weight or borne dangerous goods, and under some special conditions, a driver temporarily leaves the engineering vehicle or the driver is ill or has other factors, so that the vehicle cannot be normally controlled, and huge risk can be generated.
In summary, in this embodiment, by receiving an instruction sent by an external terminal to turn off or turn on a main power switch, an operator can turn off or turn on the main power switch of the engineering vehicle at a position far away from the outside of the vehicle, so that an external power supply loop of a storage battery of the engineering vehicle can be disconnected or connected, and thus when the driver forgets to turn off the main power switch after leaving the vehicle, the main power switch can be turned off through the external terminal, the driver does not need to return to the vehicle, so that the labor intensity is reduced, the labor efficiency is improved, and the possibility of power shortage of the storage battery due to long-time turning on of the main power switch is reduced; under some special conditions, when an emergency occurs and a driver is not in the vehicle, the external power supply circuit of the storage battery can be cut off by turning off the power master switch through the external terminal, so that the power source of the vehicle is disconnected, the danger of the vehicle is reduced, and the safety is improved; in some projects, under the conditions that a plurality of vehicles are put into use and stopped to be used simultaneously, the power supply main switch of the vehicle can be uniformly managed through fixed external terminals such as an operation platform and the like, so that the use of the vehicle is standardized, and the cost is saved; and when some vehicles are stolen, the vehicle power supply main switch can be closed in time through external terminals such as an operation platform and the like, so that the vehicles can be recovered, and the safety of the vehicles is improved.
It should be particularly noted that, in this embodiment, an instruction for turning off or turning on the power main switch sent by the external terminal is received, the instruction is mainly implemented in a wireless wifi mode or a bluetooth mode, the external terminal may be a wireless remote controller, a mobile phone, a notebook computer, or an immovable control platform, and when the external terminal is an immovable control platform, the foregoing operating personnel may be the personnel who control the platform, and the personnel may perform unified management on the power main switches of multiple vehicles through the control platform.
Further, the receiving of the command of the external terminal is realized by a command receiver provided in the case of the battery.
Step 12: and according to the instruction, closing or opening the power main switch to cut off or connect the power supply loop outside the storage battery of the vehicle.
After receiving an instruction sent by an external terminal, the power main switch is closed or opened to cut off or connect an external power supply loop of a storage battery of the vehicle, so that the control mode of the power main switch is simplified, the possibility of power shortage of the storage battery caused by forgetting of a driver is reduced, and the working efficiency is improved.
Example 2
As shown in fig. 3, a power main switch control method of a work vehicle according to another embodiment of the present invention includes:
step 20: when a power supply main switch is in an on state and an engine of a vehicle is in a flameout state, detecting the residual electric quantity of a storage battery of the vehicle;
when the electric quantity appears in the battery of vehicle and crosses low excessively, can lead to the unable start-up of vehicle, consequently, through the residual capacity who detects the battery of vehicle, can in time discover whether cross low excessively of battery electric quantity to take safeguard procedures, reduce the unable possibility of starting of vehicle, with improvement work efficiency, save the cost.
In addition, when the engine is started and the vehicle-mounted generator generates power, the storage battery can be immediately charged, and the problem of residual capacity does not exist, so that the residual capacity of the storage battery of the vehicle only needs to be detected under the condition that the power main switch is turned on and the engine is not ignited.
Step 22: judging whether the residual electric quantity is larger than a preset electric quantity or not;
step 24: if not, closing the power main switch;
when the electric quantity of the storage battery is not larger than the preset electric quantity, the power supply circuit outside the storage battery of the vehicle can be cut off by closing the power supply main switch, so that the storage battery is stopped from continuing discharging, the electric quantity of the storage battery is kept at a higher position, the possibility of insufficient power of the storage battery is reduced, the possibility of incapability of starting the vehicle is reduced, the working efficiency is improved, and the cost is saved.
Further, under certain conditions, a driver needs to leave the vehicle for a short time, when a normal electric circuit on the vehicle needs to be kept connected, the driver can choose not to turn off a power supply main switch, the control method of the embodiment automatically detects the electric quantity condition, and when the residual electric quantity is not greater than the preset electric quantity, the power supply main switch is turned off, so that the on state of the normal electric circuit can be kept within a certain time, the possibility of normal work of equipment needing normal electricity in the vehicle is improved, and when the electric quantity is too low, the power supply main switch can be automatically turned off to terminate power supply, so that the possibility of power shortage of the storage battery is reduced, and the convenience in use of the vehicle is improved.
In addition, when the residual electric quantity is not greater than the preset electric quantity, a driver or other working personnel can be prompted to turn off the power supply main switch through alarming.
Step 26: if so, detecting the current residual electric quantity of the storage battery every first preset time length,
and returns to step 22.
Under the condition that the power master switch was not closed, the battery lasted to the power supply of part electrical equipment to the electric quantity that makes the battery lasts and reduces, consequently, it is long through the first preset of every, detect the current residual capacity of battery, and compare with the electric quantity of predetermineeing, can in time discover the condition of the residual capacity of battery, when the residual capacity is not more than predetermineeing the electric quantity, in time close the power master switch of vehicle, reduce the battery and further discharge and lead to the electric quantity low possibility that the insufficient voltage appears.
Example 3
As shown in fig. 4, on the basis of embodiment 2, the method for controlling a main power switch of a work vehicle according to an embodiment of the present invention includes:
step 30: detecting the control distance between an external terminal and a vehicle when a main power switch is in an on state and an engine is in a flameout state;
after the engine is shut down, the driver can transact other affairs away from the vehicle if no special condition exists, so that the distance between the driver and the vehicle is farther and farther, and if the driver is a movable external terminal, the driver can be farther and farther away from the vehicle along with the carrying of the driver; therefore, the distance between the driver and the vehicle can be judged by detecting the control distance between the external terminal and the vehicle, whether the driver leaves the vehicle or not is judged according to the distance between the driver and the vehicle, whether the power main switch of the vehicle is forgotten to be turned off or not is judged, and specific operation is carried out according to the judgment.
In addition, it is particularly pointed out that the external terminal may not be movable, but may be a fixed console, such as a desktop computer in an office, when the console is used, the control distance between the vehicle and the console is not very close, so that according to the method, the main power switch can be automatically turned off after the second preset time period. For the external terminal similar to the control platform, the preset distance can be set as the minimum distance between the vehicle and the control platform, so that the power main switch can be automatically turned off after the engine is shut down.
Step 32: judging whether the control distance is greater than a preset distance;
step 320: if yes, closing a power supply main switch;
after the driver finishes driving and flameout, when the vehicle door is closed and the vehicle leaves, if the driver forgets to turn off the main power switch, the driver can be indicated to be away from the vehicle and forgets to turn off the main power switch by detecting the control distance when the control distance is detected to be greater than the preset distance, so that after the control distance between the external terminal and the vehicle is identified by the control method of the embodiment, the main power switch can be automatically turned off under the condition that the driver forgets to turn off the main power switch when leaving the vehicle, and the possibility of power shortage of a vehicle storage battery is reduced; for the external terminal which cannot move, the preset distance is set to be the minimum distance between the vehicle and the external terminal, so that after the engine is shut down, the control distance is always larger than the preset distance, and the power main switch can be automatically turned off after the engine is shut down.
Step 322: if not, detecting the control distance between the external terminal and the vehicle every second preset time, and returning to the step 32;
for the movable external terminal, the control distance is not greater than the preset distance, generally, the situation that a driver is near a vehicle and does not leave the vehicle is described, and some things possibly need to be processed under the condition of turning on the main power switch, so that the main power switch is not turned off temporarily, the control distance between the external terminal and the vehicle is continuously detected, and the size of the control distance and the preset distance is continuously judged to judge whether the driver leaves the vehicle, so that the main power switch of the vehicle can be automatically turned off in time when the driver leaves the vehicle no matter whether the driver forgets to turn off the main power switch, and the possibility of power shortage of the storage battery is reduced.
The second preset duration is mainly the buffering time left for a driver or other workers to handle the things needing to turn on the main switch of the power supply, and therefore the second preset duration can be set to be 2-8 hours.
Step 34: after the power main switch is turned off, judging whether the command of turning on the power main switch sent by the external terminal is received within a third preset time;
there is a possibility that the driver leaves the vehicle with the external terminal, but there are other workers near the vehicle, and it is necessary that the power main switch is in an on state; or the external terminal cannot move but is a fixed operation platform, the control distance of the external terminal is generally greater than the preset distance, so that a driver can possibly turn off a main power switch of the vehicle as long as an engine is shut down no matter how far away from the vehicle, and when the condition of false turning off occurs, the driver or other workers can send an instruction for turning on the main power switch through the external terminal so as to turn on the main power switch again.
It should be noted that, in the event of such a false shutdown, the driver or other staff member must turn on the power main switch again within a short time, and it is impossible to wait for a long time to issue the restart instruction, and therefore, the third preset time period should be set within a short time, such as within 10 minutes, or shorter.
Step 340: if yes, starting a power main switch, starting detection of the residual electric quantity, stopping detection of the control distance, and restarting detection of the control distance after next ignition and flameout of the engine;
after the power main switch is turned on, the detection of the control distance can be performed again due to the fact that the power main switch is turned on and the engine is in a flameout state, and the power main switch is turned off repeatedly, so that the detection of the control distance is required to be stopped at the moment; meanwhile, the driver or other workers may need a long time to keep the power main switch on and the engine not to ignite, so that the electric quantity of the storage battery can be consumed independently, the detection of the residual electric quantity is started at the moment, the power main switch can be turned off when the residual electric quantity of the storage battery is consumed to preset electric quantity, and the possibility of vehicle power shortage caused by the fact that the electric quantity of the storage battery is completely consumed is reduced.
In addition, since the detection of the control distance is terminated, the detection of the control distance needs to be restarted after the next engine ignition and flameout, so that the situation that the driver forgets to turn off the power main switch after leaving the vehicle and the power is insufficient is avoided.
Step 342: if not, the main switch of the power supply is kept closed.
If the instruction for turning on the main power switch sent by the external terminal is not received within the third preset time, the previous turning-off is not problematic, and therefore the turning-off state of the main power switch is maintained.
Example 4
As shown in fig. 5, on the basis of embodiment 2, the method for controlling a main power switch of a work vehicle according to an embodiment of the present invention includes:
step 40: after the power main switch is in an on state and the engine is flamed out, or after an instruction of turning on the power main switch by an external terminal is received and the power main switch is turned on, detecting the ignition state of the engine after a fourth preset time;
if a driver needs to drive the vehicle, the engine is started within a short time after a power main switch is turned on; or when something other than driving needs to be handled in a short time, the engine may be turned off for a while, but the power main switch is not turned off, and the engine is restarted again after the handling of something is completed; therefore, after the power main switch is in the on state and the engine is flamed out, or after an instruction of turning on the power main switch by the external terminal is received and the power main switch is turned on, the ignition state of the engine is detected after a fourth preset time period, and whether the driver needs to drive or not can be judged.
The fourth preset duration is similar to the second preset duration and is a buffering time left for a driver or other workers, and therefore the fourth preset duration can be set to be 2-8 hours.
Step 42: judging whether the engine is ignited or not;
step 420: if not, closing the power main switch;
if the engine is not ignited, the driver turns on the main power switch or does not turn off the main power switch after flameout, but does not necessarily prepare to drive the vehicle, only takes some articles, or engages in other matters unrelated to driving, or forgets to turn off the main power switch, so that the main power switch is automatically turned off without turning on the main power switch to cooperate with driving, so as to save the electric quantity in the storage battery and reduce the possibility of power shortage of the storage battery.
Of course, there is also a possibility that the driver needs to perform some checking and maintenance work under the condition of turning on the power main switch for a long time, in this case, if the vehicle automatically turns off the power main switch, the driver or other staff can send an instruction to turn on the power main switch to the vehicle through an external terminal and terminate the automatic detection of the ignition state of the engine so as to maintain the power supply circuit connected to the outside of the storage battery.
Step 422: if yes, keeping a power supply main switch on;
if ignition is already present, indicating that the driver may be ready to drive the vehicle, it is necessary to maintain the on state of the power main switch.
Step 44: after the power main switch is turned off, judging whether the command of turning on the power main switch sent by the external terminal is received within a third preset time;
as mentioned in step 420, it is possible that the driver or other staff member needs to keep the main power switch on for a long time to engage in some transactions requiring power, but the on time exceeds the fourth preset time, which results in the main power switch being automatically turned off, and when such an erroneous turning-off occurs, the driver or other staff member may send an instruction to turn on the main power switch through the external terminal, so as to turn on the main power switch again.
Further, in the event of such a false shutdown, the driver or other staff member must turn on the power main switch again within a short time, and it is impossible to wait for a long time to issue the restart instruction, and therefore, the third preset time period should be set within a short time, such as within 10 minutes, or shorter.
Step 440: if yes, starting a power main switch and starting the detection of the residual electric quantity, stopping the detection of the ignition state of the engine, and restarting the detection of the ignition state after the next ignition and flameout of the engine;
after the power supply main switch is turned on, the ignition state of the engine can be detected again and the power supply main switch is turned off repeatedly, so that the detection of the ignition state needs to be stopped at the moment; meanwhile, the driver or other workers may need a long time to keep the power main switch on and the engine not to ignite, so that the electric quantity of the storage battery can be consumed independently, the detection of the residual electric quantity is started at the moment, the power main switch can be turned off when the residual electric quantity of the storage battery is consumed to preset electric quantity, and the possibility of vehicle power shortage caused by the fact that the electric quantity of the storage battery is completely consumed is reduced.
In addition, since the detection of the ignition state is terminated, the detection of the ignition state needs to be restarted after the next ignition and flameout of the engine, so that the situation that the driver forgets to turn off the power main switch after leaving the vehicle and causes power shortage is avoided.
Step 442: if not, the main switch of the power supply is kept closed.
If the instruction for turning on the main power switch sent by the external terminal is not received within the third preset time, the previous turning-off is not problematic, and therefore the turning-off state of the main power switch is maintained.
Example 5
As shown in fig. 6, a power main switch control method for a construction vehicle according to an embodiment of the present invention includes:
step 50: detecting the control distance between an external terminal and a vehicle when a main power switch is in an on state and an engine is in a flameout state;
step 52: judging whether the control distance is greater than a preset distance, if so, entering a step 542, and turning off a main power switch;
step 522: if not, detecting the ignition state of the engine after a fourth preset time length;
step 54: judging whether the engine is ignited or not;
step 540: if yes, keeping a power supply main switch on;
step 542: if not, closing the power main switch;
step 56: after the power main switch is turned off, judging whether the command of turning on the power main switch sent by the external terminal is received within a third preset time;
step 560: if so, starting a power main switch and starting the detection of the residual electric quantity, terminating the detection of the ignition state or the control distance, and restarting the detection of the control distance after the next ignition and flameout of the engine;
step 562: if not, the main switch of the power supply is kept closed.
According to the vehicle power supply main switch control method, after the engine is flamed out, the control distance is detected firstly, if a driver leaves or the external terminal cannot move, the control distance is inevitably greater than the preset distance, so that the power supply main switch can be automatically turned off, and the electric quantity is saved; if the control distance is not more than the preset distance, detecting the ignition state of the engine after the fourth preset time length to determine whether the driver forgets to turn off the power main switch after leaving, and providing a certain buffer time for the driver or other workers through the setting of the fourth preset time length to process some temporary things needing to turn on the power main switch, thereby reducing the possibility of repeatedly detecting the control distance in the embodiment 2, reducing the detection times and saving the electric quantity; if the condition of mistakenly turning off the main power switch occurs, the main power switch can be turned on again through the external terminal so as to meet the requirements of drivers or other workers, and the detection of the residual electric quantity is started so as to reduce the possibility of power shortage of the storage battery.
Example 6
As shown in fig. 7, a power main switch control apparatus of a working vehicle according to an embodiment of the present invention includes:
the system comprises an instruction receiver 102, a first detection unit 106, a second detection unit 110, a third detection unit 114, a first judgment unit 108, a second judgment unit 112 and a microcontroller 104, wherein the instruction receiver 102, the units and the microcontroller 104 are electrically connected with each other.
The power supply control system comprises a command receiver 102, a microcontroller 104 and a control module, wherein the command receiver is mainly used for receiving a command of turning off or turning on a main power switch sent by an external terminal; as shown in fig. 8, the command receiver 102 of the present embodiment is integrated with the microcontroller 104 on the chip 22 inside the casing of the battery 20 of the engineering vehicle, so as to simplify the structure and save the space.
A first detection unit 106 of the present embodiment, configured to detect a remaining capacity of the battery 20 of the vehicle when the power main switch is in an on state and the engine is in a key-off state; a first judging unit 108, configured to judge whether the remaining power is greater than a preset power; the microcontroller 104 is further configured to turn off the power main switch when the remaining power is not greater than the preset power, or control the first detecting unit 106 to detect the current remaining power of the battery 20 again every first preset time interval when the remaining power of the battery 20 is greater than the preset power, and turn off the power main switch until the current remaining power is not greater than the preset power, so as to cut off an external power supply loop of the battery 20.
A second detection unit 110 for detecting a control distance between the external terminal and the vehicle when the power main switch is in an on state and the engine is in a stall state; a second judging unit 112, configured to judge whether the control distance is greater than the preset distance; the microcontroller 104 is further configured to turn off the power main switch when the control distance is greater than the preset distance and the power main switch is in an on state; the microcontroller 104 is further configured to detect the control distance between the external terminal and the vehicle every second preset time when the control distance is not greater than the preset distance, and turn off the power main switch to cut off the external power supply loop of the battery 20 until the current control distance is greater than the preset distance.
The third detection unit 114 is configured to detect whether the engine is ignited after a fourth preset time period after the power supply main switch is in an on state and the engine is turned off; or after receiving an instruction of starting a power supply main switch by an external terminal and starting the power supply main switch, detecting whether the engine is ignited or not through a fourth preset time length; the microcontroller 104 is also used to keep the power main switch on when the engine has been ignited; the microcontroller 104 is also used to turn off the main power switch when the engine is not firing.
Through adopting the power master switch control device of this embodiment, can realize engineering vehicle's power master switch's long-range wireless control and automatic control, reduce intensity of labour, improve the convenience of vehicle use, reduce the possibility of the battery 20 insufficient voltage of vehicle, still improved the security of vehicle.
The technical scheme of the invention is described in detail in the above with reference to the attached drawings, and by the technical scheme of the invention, the remote wireless control and automatic control of the power supply main switch of the vehicle are effectively realized, the possibility of power shortage of the storage battery of the vehicle is reduced, the possibility that the vehicle cannot be started due to the power shortage of the storage battery is further reduced, the working efficiency is improved, the power supply main switch of the vehicle can be closed through an external terminal under an emergency condition, the power supply of the vehicle is cut off, and the safety of the vehicle is improved.
In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A power main switch control method of a vehicle, characterized by comprising:
receiving a command of closing or opening a power main switch sent by an external terminal;
according to the instruction, the power main switch is closed or opened so as to cut off or connect an external power supply loop of a storage battery of the vehicle;
detecting the residual electric quantity of a storage battery of the vehicle when the power main switch is in an on state and an engine of the vehicle is in a flameout state;
judging whether the residual electric quantity is larger than the preset electric quantity or not;
when the residual electric quantity is not greater than the preset electric quantity, closing the power supply main switch to cut off an external power supply loop of the storage battery;
when the residual electric quantity of the storage battery is larger than the preset electric quantity, detecting the current residual electric quantity of the storage battery every other first preset time, and sending an alarm prompt and/or turning off the power supply main switch to cut off an external power supply loop of the storage battery until the current residual electric quantity is not larger than the preset electric quantity;
detecting whether the engine is ignited or not after a fourth preset time length after the power main switch is in an on state and the engine is flamed out; or
After receiving an instruction of turning on the power supply main switch by the external terminal and turning on the power supply main switch, detecting whether the engine is ignited or not through a fourth preset time length;
if the engine is ignited, keeping the on state of the main power switch;
if the engine is not ignited, the power main switch is closed;
when the power supply main switch is turned off and an instruction sent by the external terminal to turn on the power supply main switch is received within a third preset time period, the power supply main switch is turned on, the detection of the residual electric quantity is started, the detection of the ignition state is terminated, the detection of the ignition state is restarted after the next ignition and flameout of the engine is carried out,
and the fourth preset time length is greater than the third preset time length.
2. The power master switch control method of a vehicle according to claim 1, characterized by further comprising:
detecting a control distance between the external terminal and the vehicle when the power main switch is in an on state and the engine is in a flameout state;
judging whether the control distance is greater than a preset distance;
when the control distance is greater than the preset distance, closing the power supply main switch to cut off an external power supply loop of the storage battery;
when the control distance is not more than the preset distance, detecting the control distance between the external terminal and the vehicle every second preset time, and turning off the power supply main switch to cut off an external power supply loop of the storage battery until the current control distance is more than the preset distance;
when the power main switch is turned off and an instruction sent by the external terminal to turn on the power main switch is received within a third preset time period, the power main switch is turned on, the detection of the residual electric quantity is started, the detection of the control distance is stopped, and the detection of the control distance is restarted after the next ignition and flameout of the engine is carried out,
and the second preset time length is greater than the third preset time length.
3. The method for controlling a main power switch of a vehicle according to claim 1 or 2, wherein the receiving a command to turn off or on the main power switch from an external terminal, and turning off or on the main power switch according to the command specifically includes:
and receiving the instruction of the external terminal through an instruction receiver arranged in the storage battery, and closing or opening the power main switch through a microcontroller arranged in the storage battery and electrically connected with the instruction receiver.
4. A power master switch control apparatus for a vehicle, comprising:
the command receiver is used for receiving a command of closing or opening the main power switch sent by an external terminal;
the microcontroller is used for closing or opening the power main switch according to the instruction received by the instruction receiver so as to cut off or connect an external power supply loop of a storage battery of the vehicle;
the first detection unit is used for detecting the residual electric quantity of a storage battery of the vehicle when a power main switch is in an on state and an engine is in a flameout state;
the first judgment unit is used for judging whether the residual electric quantity is larger than a preset electric quantity or not;
the microcontroller is also used for turning off the power supply main switch when the residual electric quantity is not greater than the preset electric quantity so as to cut off an external power supply loop of the storage battery;
the microcontroller is further configured to control the first detection unit to detect the current remaining power of the storage battery every first preset time when the remaining power of the storage battery is greater than the preset power, and control the first judgment unit to judge whether the current remaining power is greater than the preset power, and send an alarm prompt and/or close the power main switch to cut off an external power supply loop of the storage battery until the current remaining power is not greater than the preset power;
the third detection unit is used for detecting whether the engine is ignited or not after a fourth preset time length after the power supply main switch is in an on state and the engine is flamed out; or
After receiving an instruction of turning on the power supply main switch by the external terminal and turning on the power supply main switch, detecting whether the engine is ignited or not through a fourth preset time length;
the microcontroller is also used for keeping the on state of the power main switch when the engine is ignited;
the microcontroller is also used for turning off the power main switch when the engine is not ignited;
the microcontroller is also used for starting the main power switch when receiving an instruction sent by the external terminal for starting the main power switch within a third preset time period after the main power switch is closed, starting the detection of the residual electric quantity, stopping the detection of the ignition state, restarting the detection of the ignition state after the next ignition and flameout of the engine,
and the fourth preset time length is greater than the third preset time length.
5. The vehicular power main switch control apparatus according to claim 4, further comprising:
the second detection unit is used for detecting the control distance between the external terminal and the vehicle when the power main switch is in an on state and an engine is in a flameout state;
a second judging unit, configured to judge whether the control distance is greater than a preset distance;
the microcontroller is also used for turning off the power supply main switch when the control distance is greater than the preset distance so as to cut off an external power supply loop of the storage battery;
the microcontroller is further used for detecting the control distance between the external terminal and the vehicle every second preset time when the control distance is not greater than the preset distance, and turning off the power supply main switch to cut off an external power supply loop of the storage battery until the current control distance is greater than the preset distance;
the microcontroller is further configured to turn on the power master switch, start detection of the remaining power, terminate detection of the control distance, and restart detection of the control distance after the next ignition and shutdown of the engine is performed when the power master switch is turned off and an instruction for turning on the power master switch, which is sent by the external terminal, is received within a third preset time period,
and the second preset time length is greater than the third preset time length.
6. The vehicular power supply main switch control device according to claim 4 or 5, wherein the command receiver and the microcontroller are built in the battery and electrically connected to each other.
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| CN110877585A (en) * | 2018-09-06 | 2020-03-13 | 北汽福田汽车股份有限公司 | Power management device and method |
| CN110356345B (en) * | 2019-06-25 | 2023-01-06 | 华为技术有限公司 | Method, device and system for remotely monitoring storage battery condition and controlling power supply of storage battery |
| CN111634231A (en) * | 2020-05-22 | 2020-09-08 | 一汽奔腾轿车有限公司 | Intelligent reminding method for automobile electric energy consumption |
| CN112162623A (en) * | 2020-09-30 | 2021-01-01 | 重庆长安汽车股份有限公司 | Method for prolonging standing service life of storage battery of fuel vehicle |
| CN113602214B (en) * | 2021-07-08 | 2023-09-12 | 东风汽车股份有限公司 | Intelligent control electromagnetic power supply main switch control system and method |
| CN114660474A (en) * | 2022-05-23 | 2022-06-24 | 深圳市驰普科达科技有限公司 | Storage battery fault diagnosis method and device, electronic equipment and storage medium |
| CN115593231B (en) * | 2022-08-16 | 2024-05-07 | 中通客车股份有限公司 | Intelligent control circuit and method for actively preventing power shortage of storage battery of new energy bus |
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Application publication date: 20180731 Assignee: Sany Automobile Manufacturing Co.,Ltd. Assignor: SANY SPECIAL PURPOSE VEHICLE Co.,Ltd. Contract record no.: X2024980010904 Denomination of invention: A method and control device for controlling the main power switch of a vehicle Granted publication date: 20200714 License type: Common License Record date: 20240801 |
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