CN112012862A - Starter control method and device, whole vehicle control system and mining truck - Google Patents
Starter control method and device, whole vehicle control system and mining truck Download PDFInfo
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- CN112012862A CN112012862A CN202010905105.7A CN202010905105A CN112012862A CN 112012862 A CN112012862 A CN 112012862A CN 202010905105 A CN202010905105 A CN 202010905105A CN 112012862 A CN112012862 A CN 112012862A
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- starter
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
- F02N11/0862—Circuits or control means specially adapted for starting of engines characterised by the electrical power supply means, e.g. battery
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
- F02N11/087—Details of the switching means in starting circuits, e.g. relays or electronic switches
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The embodiment of the invention provides a starter control method, a starter control device, a whole vehicle control system and a mining truck, wherein the method comprises the following steps: if the environment is less than or equal to the preset temperature threshold, accumulating the ignition times of the vehicle, if the accumulated ignition total times reaches a first preset time and the rotating speed of the engine is zero, the switch state of the starting relay is a closed state and the voltage drop of the vehicle storage battery is less than or equal to a preset voltage drop threshold, controlling the starting relay to perform switching action of closing and opening according to a second preset time, freezing and breaking the switch contact of the starting relay, and enabling the vehicle to be started normally. The starter control method provided by the embodiment of the invention solves the problem that the vehicle is failed to start due to the fact that the starting relay switch contact is frozen when the outdoor temperature is low, and guarantees the safety and reliability of vehicle driving.
Description
Technical Field
The invention relates to the technical field of vehicle control, in particular to a starter control method and device, a whole vehicle control system and a mining truck.
Background
When starting the engine of a vehicle, the internal combustion engine can be successfully started only by rotating the crankshaft to a certain rotation speed with the help of external force. A starter is generally used to start an internal combustion engine by converting electric energy of a battery into mechanical energy of the engine to bring the engine to a predetermined rotational speed.
The control process of the vehicle starter is as follows: the starting relay is switched on, namely an ignition switch, the starting relay works, then the electromagnetic switch of the starter starts to work, the switch state of the starting relay is changed from a normally open state to a closed state, current passes through the starting relay, and therefore the starter is started to work, and large torque is output to start the engine. The starting relay is mainly used for controlling the starting relay by using small current, when the current flowing through a coil of the starting relay reaches a pull-in current value, the armature is attracted, the armature drives a switch contact to move upwards to work, the switch contact is closed with a static contact, a starting winding power supply is switched on, and a starter immediately starts to run to provide starting torque for an engine.
However, in the cold region test of the whole vehicle, it is found that when the whole vehicle is started in a low-temperature environment, a terminal switch contact of the starting relay is frozen due to low temperature, and even if the terminal is attracted, no conducting current passes through, so that a fault that the starter cannot work even if the starting switch is closed is caused.
Disclosure of Invention
The embodiment of the invention provides a starter control method and device, a whole vehicle control system and a mining truck, and solves the problem of vehicle starting failure caused by icing of a starting relay terminal switch contact.
In a first aspect, a starter control method according to an embodiment of the present invention includes:
acquiring an ambient temperature, and accumulating the ignition times of the vehicle if the ambient temperature is less than or equal to a preset temperature threshold;
if the accumulated total ignition times reach a first preset time and the rotating speed of the engine is zero, acquiring the switching state of a starting relay of the starter and the voltage drop of a vehicle storage battery;
and if the switch state is a closed state and the voltage drop of the vehicle storage battery is less than or equal to a preset voltage drop threshold value, controlling the starting relay to perform switching action of closing and opening according to a second preset number of times.
In one possible design, the obtaining the ambient temperature includes:
and acquiring the real-time ambient temperature of the position of the vehicle through an ambient temperature sensor.
In a possible design, after the controlling the starting relay to perform the switching action of closing and opening according to a second preset number of times, the method further includes:
if the rotating speed of the engine is still zero, generating a starting relay fault signal;
and sending the starting relay fault signal to a vehicle display for displaying so as to prompt a driver that the starting relay fault exists in the current vehicle.
In one possible design, the preset pressure drop threshold is 1V.
In a second aspect, an embodiment of the present invention provides a starter control apparatus, including:
the acquisition module is used for acquiring the ambient temperature, and accumulating the ignition times of the vehicle if the ambient temperature is less than or equal to a preset temperature threshold;
the control module is used for acquiring the on-off state of a starting relay of the starter and the voltage drop of a vehicle storage battery if the accumulated total ignition times reach a first preset time and the rotating speed of the engine is zero; and if the switch state is a closed state and the voltage drop of the vehicle storage battery is less than or equal to a preset voltage drop threshold value, controlling the starting relay to perform switching action of closing and opening according to a second preset number of times.
In one possible design, the obtaining module is further configured to: and acquiring the real-time ambient temperature of the position of the vehicle through an ambient temperature sensor.
In one possible design, the apparatus further includes: the sending module is used for generating a starting relay fault signal if the rotating speed of the engine is still zero; and sending the starting relay fault signal to a vehicle display for displaying so as to prompt a driver that the starting relay fault exists in the current vehicle.
In a third aspect, an embodiment of the present invention provides a vehicle control system, including:
an ambient temperature sensor for acquiring an ambient temperature;
the ignition switch is used for controlling the vehicle to start;
the vehicle storage battery is used for providing electric energy for the starter and the starting relay;
a starting relay for controlling a switching state of the starting relay according to a state of the ignition switch;
the starter is used for starting operation according to the electric energy provided by the vehicle storage battery;
the engine is used for providing starting torque to operate according to the starter, and starting the internal combustion engine when reaching a specified rotating speed;
an Electronic Control Unit (ECU) comprising at least one processor, a memory, the memory storing computer-executable instructions; the at least one processor executes computer-executable instructions stored by the memory to cause the at least one processor to perform the starter control method of any of the first aspect and the first aspect.
In a fourth aspect, an embodiment of the present invention provides a mining truck, including the entire vehicle control system according to the third aspect.
In a fifth aspect, an embodiment of the present invention provides a computer-readable storage medium, where computer-executable instructions are stored, and when a processor executes the computer-executable instructions, the starter control method according to any one of the first aspect and the first aspect is implemented.
According to the starter control method, the starter control device, the whole vehicle control system and the mining truck, if the ambient temperature is less than or equal to the preset temperature threshold, the ignition frequency of the vehicle is accumulated, if the accumulated ignition total frequency reaches the first preset frequency, the rotating speed of an engine is still zero, the switch state of a starting relay is in a closed state, and the voltage drop of a vehicle storage battery is less than or equal to the preset voltage drop threshold, the starting relay is controlled to perform switching action of closing and opening according to the second preset frequency, the switch contact of the starting relay is frozen and broken, the vehicle is normally started, the problem that the vehicle is failed to start due to the fact that the switch contact of the starting relay is frozen when the outdoor temperature is low is solved, and the safety and the reliability of vehicle running are guaranteed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic diagram of a vehicle control system architecture according to an embodiment of the present invention;
fig. 2 is a first flowchart illustrating a starter control method according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating a second method for controlling a starter according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a starter control device provided in an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an electronic control unit ECU according to an embodiment of the present invention.
Detailed Description
With the above figures, certain embodiments of the invention have been illustrated and described in more detail below. The drawings and the description are not intended to limit the scope of the inventive concept in any way, but rather to illustrate it by those skilled in the art with reference to specific embodiments.
When the whole vehicle is started in a low-temperature environment, the contact of the terminal of the starting relay is frozen due to low temperature, and no conducting current passes through the terminal even if the terminal is attracted, so that the fault that the starter cannot work even if the starting switch is closed is found.
In order to solve the technical problems, embodiments of the present invention provide a starter control method, wherein when it is determined that a vehicle fails to start due to icing of a starting relay switch contact, a starting relay is controlled to perform a pull-in and pull-out operation for multiple times, and the icing and breaking of the starting relay switch contact are performed, so that the vehicle starts normally.
Fig. 1 is a schematic diagram of a vehicle control system according to an embodiment of the present invention. As shown in fig. 1: the whole vehicle control system architecture in the embodiment of the invention comprises: an ambient temperature sensor 101, an ignition switch 102, a vehicle battery 103, a starter 104, an engine 105, and an ECU (Electronic Control Unit) 106. Starter relay 1041 is also included in starter 104. Specifically, the ambient temperature sensor 101 is configured to obtain an ambient temperature, when the ignition switch 102 controls the vehicle to start, the vehicle battery 103 provides power to the starter and the starting relay, the starting relay 1041 controls a switching state of the starting relay according to a state of the ignition switch, when the switching state of the starting relay 1041 is a closed state, the starter 104 performs starting operation according to the power provided by the vehicle battery, and provides a starting torque to drive the engine 105 to operate, and when a rotation speed of the engine 105 reaches a predetermined rotation speed, the internal combustion engine is started. Among them, the ECU106 controls the operations of the starter relay 1041, the starter 104, and the engine 105 based on signals transmitted from the ambient temperature sensor 101, the ignition switch 102, and the vehicle battery 103.
Fig. 2 is a schematic flowchart of a starter control method according to an embodiment of the present invention, where an execution main body of the embodiment may be the ECU shown in fig. 1. As shown in fig. 2, the method includes:
s201: and acquiring the ambient temperature, and accumulating the ignition times of the vehicle if the ambient temperature is less than or equal to a preset temperature threshold.
During the starting process of the vehicle, the starting failure can be caused by the shortage of the electric quantity of the storage battery, the failure of the starter, or the failure of the ignition system and the fuel supply system of the vehicle. Thus, when the vehicle fails to start, the driver tries to start the vehicle by multiple ignitions empirically. When the outdoor temperature is low, it is likely that the vehicle will fail to start due to freezing of the starter relay switch contacts. And when the outdoor temperature is less than or equal to the preset temperature threshold, accumulating the ignition times of the vehicle when the vehicle is not started successfully after the first ignition of the vehicle. After ignition for many times, the starting relay switch contact is subjected to pull-in and pull-out actions, the starting relay switch contact is possibly frozen and broken, the vehicle is started successfully, and the ignition frequency is reset. And if the vehicle is not started after the ignition for a plurality of times, accumulating the ignition times of the vehicle. Illustratively, the preset temperature threshold is empirically set to 0 degrees celsius. When the outdoor temperature is lower than or equal to 0 ℃, recording the total ignition times of the vehicle at each failed starting.
In the embodiment of the invention, the real-time ambient temperature of the position of the vehicle can be obtained through the ambient temperature sensor. Illustratively, the ambient temperature sensor is a thermistor, typically mounted on a front bumper mounting bracket of the vehicle, that provides an outside vehicle compartment temperature signal to the ECU.
S202: and if the accumulated total ignition times reach a first preset time and the rotating speed of the engine is zero, acquiring the switching state of a starting relay of the starter and the voltage drop of a vehicle storage battery.
When the vehicle is started and has a fault, usually, a driver cannot directly identify the problem of icing of a starting relay switch contact, and ignition can be performed for 2 times and 3 times only according to experience. However, when the icing of the starting relay switch contact is thick, the icing of the starting relay switch contact cannot be broken by a few times of closing and opening actions. When the total ignition frequency of the vehicle reaches a first preset frequency threshold value, if the rotating speed of the engine is still zero, the icing is not broken after the starting relay switch contact passes through the first preset frequency of the pull-in and break-off actions, and the current reason of the vehicle starting failure can be further identified by acquiring the switch state of the starting relay and the voltage drop of the vehicle storage battery. Specifically, the first preset time threshold is set to be 3 times, when the vehicle still fails to start after being ignited for 3 times, the on-off state of the starting relay and the voltage drop of the vehicle storage battery are obtained, and whether the vehicle is the icing fault of the starting relay switch contact is further determined.
S203: and if the switch state is a closed state and the voltage drop of the vehicle storage battery is less than or equal to a preset voltage drop threshold value, controlling the starting relay to perform switching action of closing and opening according to a second preset number of times.
Under normal conditions, when the switching state of the starting relay is a closed state, the electromagnetic switch coil circuit is switched on at the moment, the storage battery of the vehicle supplies power to the starter at the moment, the starter starts to operate to provide starting torque for the engine, the electric energy of the storage battery is converted into mechanical energy, and the voltage drop of the storage battery is obvious. However, when the on-off state of the starting relay is a closed state, but the voltage drop of the vehicle storage battery is small, it indicates that the current electromagnetic switch coil circuit has an open-circuit fault, only the coil of the electromagnetic switch coil consumes a very small part of electric quantity, and the voltage drop of the vehicle storage battery is far smaller than the voltage drop of the vehicle when the vehicle is normally started. Therefore, when the switch state of the starter relay is the closed state and the vehicle battery voltage drop is less than or equal to the preset voltage drop threshold, it can be determined that the vehicle has failed to start due to the freezing of the starter relay switch contacts. The switching action of closing and opening of the starting relay switch contact is controlled according to the second preset times, so that the freezing and breaking of the starting relay switch contact are guaranteed. After the starting relay switch contact is subjected to repeated experiments, after the starting relay switch contact is subjected to pick-up and breaking actions for 10 times, the probability of freezing and breaking of the starting relay switch contact is over 95 percent. The second preset number of times may be set to 10 times according to the result of the test of starting the relay switch contact. And after the starting relay switch contact is controlled to perform the pick-up and disconnection actions for 10 times, the icing of the starting relay switch contact is broken, so that the vehicle is started normally.
Specifically, the on-off state of the starting relay is determined by acquiring a Strt _ stPs value, and when the Strt _ stPs value is 1, the on-off state of the starting relay is in a closed state, and when the Strt _ stPs value is 0, the on-off state of the starting relay is in an open state.
In the embodiment of the invention, specifically, the preset voltage drop threshold is 1V, that is, when the switch state of the starting relay is a closed state and the voltage drop of the vehicle storage battery is less than or equal to 1V, it can be determined that the vehicle fails to start due to the icing of the starting relay switch contact, and the starting relay switch contact needs to be controlled to perform the pull-in and pull-out actions for a second preset number of times, so as to ensure that the icing of the starting relay switch contact is broken.
It can be known from the description of the above embodiment that, if the environment is less than or equal to the preset temperature threshold, the ignition frequency of the vehicle is accumulated, if the accumulated ignition total frequency reaches the first preset frequency, the engine speed is zero, the switch state of the starting relay is the closed state, and the voltage drop of the vehicle storage battery is less than or equal to the preset voltage drop threshold, the starting relay is controlled to perform the switching action of closing and opening according to the second preset frequency, the switch contact of the starting relay is frozen and broken, so that the vehicle is normally started, the problem of vehicle starting failure caused by freezing of the switch contact of the starting relay when the outdoor temperature is low is solved, and the safety and reliability of vehicle running are ensured.
Fig. 3 is a second flowchart of a starter control method according to an embodiment of the present invention, and this embodiment describes in detail the starter control method after the starter relay is controlled to perform the switching action of closing and opening according to a second preset number of times in S203 based on the embodiment of fig. 2. As shown in fig. 3, the method includes:
s301: if the engine speed is still zero, a starting relay fault signal is generated.
In the embodiment of the invention, if the icing of the starting relay switch contact is very thick, even if the starting relay switch contact is controlled to perform the closing and opening actions for the second preset times, the icing of the starting relay switch contact is not broken, and at the moment, a starting relay fault signal is generated, wherein the starting relay fault signal is used for prompting a user to determine that the vehicle starting failure fault is the starting relay fault, so that a driver can timely troubleshoot the abnormal condition of the vehicle according to the prompting information, and the driving safety is improved.
S302: and sending a starting relay fault signal to a vehicle display for displaying so as to prompt a driver that the starting relay fault exists in the current vehicle.
In the embodiment of the invention, the starting relay fault signal can be sent to the vehicle display to be displayed so as to prompt the driver of the specific reason of the starting fault of the current vehicle. The vehicle-mounted display device is used for prompting a driver that the current vehicle has a starting relay fault according to the prompt signal. For example, the vehicle-mounted display device may be a vehicle-mounted display, and the vehicle-mounted display generates and displays a prompt message "the starting relay contact is frozen" according to the starting relay fault signal, so as to remind a driver that the reason for the current vehicle start failure is that the starting relay contact is frozen.
It can be known from the description of the above embodiment that, after the start relay switch contact performs the second preset number of actuation and disconnection actions, the icing of the start relay switch contact is not broken, a start relay fault signal is generated and sent to the vehicle display for display, so as to prompt the driver that the starting relay fault exists in the current vehicle, so that the driver can check the icing condition of the start relay switch contact in time, remove the vehicle fault in time, and improve the safety of vehicle running.
Fig. 4 is a schematic structural diagram of a starter control device according to an embodiment of the present invention. As shown in fig. 4, the starter control apparatus 40 includes: an acquisition module 401 and a control module 402.
The obtaining module 401 is configured to obtain an ambient temperature, and accumulate the vehicle ignition frequency if the ambient temperature is less than or equal to a preset temperature threshold.
The control module 402 is used for acquiring the on-off state of a starting relay of a starter and the voltage drop of a vehicle storage battery if the accumulated total ignition times reach a first preset time and the rotating speed of an engine is zero; and if the switch state is a closed state and the voltage drop of the vehicle storage battery is less than or equal to a preset voltage drop threshold value, controlling the starting relay to perform switching action of closing and opening according to a second preset number of times.
The apparatus provided in this embodiment may be used to implement the technical solutions of the above method embodiments, and the implementation principles and technical effects are similar, which are not described herein again.
In a possible implementation manner, the obtaining module 401 is further configured to obtain a real-time ambient temperature of a location where the vehicle is located through an ambient temperature sensor.
In a possible implementation manner, the starter control device 40 further includes a sending module, configured to generate a starting relay fault signal if the engine speed is still zero; and sending the starting relay fault signal to a vehicle display for displaying so as to prompt a driver that the starting relay fault exists in the current vehicle.
Fig. 5 is a schematic structural diagram of an electronic control unit ECU according to an embodiment of the present invention. As shown in fig. 5, the electronic control unit ECU50 of the present embodiment includes: a processor 501, a memory 502 and a computer program stored in the memory 502 and operable on the processor 501, the processor 501 implementing the following steps when executing the computer program:
acquiring an ambient temperature, and accumulating the ignition times of the vehicle if the ambient temperature is less than or equal to a preset temperature threshold;
if the accumulated total ignition times reach a first preset time and the rotating speed of the engine is zero, acquiring the switching state of a starting relay of the starter and the voltage drop of a vehicle storage battery;
and if the switch state is a closed state and the voltage drop of the vehicle storage battery is less than or equal to a preset voltage drop threshold value, controlling the starting relay to perform switching action of closing and opening according to a second preset number of times.
In one possible design, the processor 501, when executing the computer program, further performs the following steps:
and acquiring the real-time ambient temperature of the position of the vehicle through an ambient temperature sensor.
In one possible design, the processor 501, when executing the computer program, further performs the following steps:
after the starting relay is controlled to perform switching action of closing and opening according to a second preset number of times, if the rotating speed of the engine is still zero, a starting relay fault signal is generated;
and sending the starting relay fault signal to a vehicle display for displaying so as to prompt a driver that the starting relay fault exists in the current vehicle.
Reference may be made in particular to the description relating to the method embodiments described above.
In one possible design, memory 502 may be separate or integrated with processor 501.
When the memory 502 is provided separately, the ECU50 also includes a bus 503 for connecting the memory 502 and the processor 501.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer executing instruction is stored in the computer-readable storage medium, and when a processor executes the computer executing instruction, the starter control method as described above is implemented.
Further, the embodiment of the invention provides a mining truck, which comprises the whole vehicle control system in the embodiment.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the division of modules is only one logical division, and other divisions may be realized in practice, for example, a plurality of modules may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or modules, and may be in an electrical, mechanical or other form.
Modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
In addition, functional modules in the embodiments of the present invention may be integrated into one processing unit, or each module may exist alone physically, or two or more modules are integrated into one unit. The unit formed by the modules can be realized in a hardware form, and can also be realized in a form of hardware and a software functional unit.
The integrated module implemented in the form of a software functional module may be stored in a computer-readable storage medium. The software functional module is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to execute some steps of the methods according to the embodiments of the present application.
It should be understood that the Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present invention may be embodied directly in a hardware processor, or in a combination of the hardware and software modules within the processor.
The memory may comprise a high-speed RAM memory, and may further comprise a non-volatile storage NVM, such as at least one disk memory, and may also be a usb disk, a removable hard disk, a read-only memory, a magnetic or optical disk, etc.
The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (Extended Industry Standard Architecture) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, the buses in the figures of the present application are not limited to only one bus or one type of bus.
The storage medium may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.
An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an Application Specific Integrated Circuits (ASIC). Of course, the processor and the storage medium may reside as discrete components in an electronic device or host device.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A starter control method characterized by comprising:
acquiring an ambient temperature, and accumulating the ignition times of the vehicle if the ambient temperature is less than or equal to a preset temperature threshold;
if the accumulated total ignition times reach a first preset time and the rotating speed of the engine is zero, acquiring the switching state of a starting relay of the starter and the voltage drop of a vehicle storage battery;
and if the switch state is a closed state and the voltage drop of the vehicle storage battery is less than or equal to a preset voltage drop threshold value, controlling the starting relay to perform switching action of closing and opening according to a second preset number of times.
2. The method of claim 1, wherein the obtaining the ambient temperature comprises:
and acquiring the real-time ambient temperature of the position of the vehicle through an ambient temperature sensor.
3. The method according to claim 1 or 2, wherein after the step of controlling the starting relay to perform the switching action of pull-in and pull-out according to a second preset number of times, the method further comprises the following steps:
if the rotating speed of the engine is still zero, generating a starting relay fault signal;
and sending the starting relay fault signal to a vehicle display for displaying so as to prompt a driver that the starting relay fault exists in the current vehicle.
4. The method of claim 1, wherein the preset pressure drop threshold is 1V.
5. A starter control apparatus, characterized by comprising:
the acquisition module is used for acquiring the ambient temperature, and accumulating the ignition times of the vehicle if the ambient temperature is less than or equal to a preset temperature threshold;
the control module is used for acquiring the on-off state of a starting relay of the starter and the voltage drop of a vehicle storage battery if the accumulated total ignition times reach a first preset time and the rotating speed of the engine is zero; and if the switch state is a closed state and the voltage drop of the vehicle storage battery is less than or equal to a preset voltage drop threshold value, controlling the starting relay to perform switching action of closing and opening according to a second preset number of times.
6. The apparatus of claim 5, wherein the obtaining module is further configured to:
and acquiring the real-time ambient temperature of the position of the vehicle through an ambient temperature sensor.
7. The apparatus of claim 5, further comprising:
the sending module is used for generating a starting relay fault signal if the rotating speed of the engine is still zero; and sending the starting relay fault signal to a vehicle display for displaying so as to prompt a driver that the starting relay fault exists in the current vehicle.
8. A vehicle control system, comprising:
an ambient temperature sensor for acquiring an ambient temperature;
the ignition switch is used for controlling the vehicle to start;
the vehicle storage battery is used for providing electric energy for the starter and the starting relay;
a starting relay for controlling a switching state of the starting relay according to a state of the ignition switch;
the starter is used for starting operation according to the electric energy provided by the vehicle storage battery;
the engine is used for providing starting torque to operate according to the starter, and starting the internal combustion engine when reaching a specified rotating speed;
an Electronic Control Unit (ECU) comprising at least one processor, a memory, the memory storing computer-executable instructions; the at least one processor executing the computer-executable instructions stored by the memory causes the at least one processor to perform the starter control method of any of claims 1 to 4.
9. A mining truck, characterized by comprising a complete vehicle control system according to claim 8.
10. A computer-readable storage medium, characterized in that a computer-executable instruction is stored therein, which when executed by a processor, implements the starter control method according to any one of claims 1 to 4.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010905105.7A CN112012862B (en) | 2020-09-01 | 2020-09-01 | Starter control method and device, whole vehicle control system and mining truck |
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| CN202010905105.7A CN112012862B (en) | 2020-09-01 | 2020-09-01 | Starter control method and device, whole vehicle control system and mining truck |
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| CN112012862A true CN112012862A (en) | 2020-12-01 |
| CN112012862B CN112012862B (en) | 2021-12-21 |
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