CN118560445A

CN118560445A - Vehicle starting method, device, equipment and storage medium

Info

Publication number: CN118560445A
Application number: CN202410729212.7A
Authority: CN
Inventors: 贾江涛; 王鹏; 李涵
Original assignee: Dongfeng Motor Group Co Ltd
Current assignee: Dongfeng Motor Group Co Ltd
Priority date: 2024-06-06
Filing date: 2024-06-06
Publication date: 2024-08-30

Abstract

The application discloses a vehicle starting method, a device, equipment and a storage medium, relates to the technical field of automobile control, and discloses a method for acquiring the current speed and the current station of a target vehicle; the method comprises the steps that based on the current speed and the current station, the current station is matched with a preset required power meter, battery reference lifting power is obtained, the preset lifting power meter comprises a serial station required power meter and a shunt station required power meter, and the shunt station required power meter comprises the speed and the battery reference lifting power; starting the target vehicle based on the battery reference boost power; according to the method, the lifting power tables of different stations are established in advance, in the actual starting process of the vehicle, the tables are determined according to the starting stations of the vehicle, lifting power is obtained through table inquiry, temporary discharging power of a battery is improved based on the lifting power, starting is performed based on the temporary discharging power, and vehicle frustration caused by reduction of driving power of a precursor motor due to the fact that the power of the precursor motor is called to exceed reserved power during starting is avoided.

Description

Vehicle starting method, device, equipment and storage medium

Technical Field

The present application relates to the field of automobile control technologies, and in particular, to a method, an apparatus, a device, and a storage medium for starting a vehicle.

Background

In a hybrid electric vehicle type, an engine is started according to driving control requirements, a customer has a power requirement full throttle or a large throttle to start the engine under a pure electric driving condition, in a hybrid electric drive assembly in the market, no matter in a series starting mode or a power splitting starting mode, the P1 generator needs to consume battery discharge power in the starting process, and the hybrid electric vehicle type hybrid electric vehicle is used for a scene of dragging the engine to start, and the starting performance is an important index of the current customer to select the hybrid electric vehicle.

As the battery pack capacity of the high-voltage battery is too low, or the battery temperature is too low or too high, the allowable discharge power of the battery is gradually reduced. In the full throttle scene of a customer, the front-drive motor has consumed the battery to permit discharging power, and in the starting process of the engine, reserved electric power cannot meet the electric power actually consumed, so that partial driving electric power has to be released from the motor of the front-drive motor in order to avoid the over-discharging phenomenon, the over-discharging phenomenon is avoided, and the short-time pause phenomenon occurs in the starting process of the vehicle due to the reduction of the power/torque of the front-drive motor.

The foregoing is provided merely for the purpose of facilitating understanding of the technical solutions of the present application and is not intended to represent an admission that the foregoing is prior art.

Disclosure of Invention

The application mainly aims to provide a vehicle starting method, device, equipment and storage medium, and aims to solve the technical problem that the driving experience of a vehicle is seriously affected when a mixed motor vehicle is started in a pause state.

In order to achieve the above object, the present application provides a vehicle starting method, comprising:

Acquiring the current speed and the current station of a target vehicle;

The method comprises the steps that based on the current speed and the current station, the current station is matched with a preset required power meter to obtain battery reference lifting power, the preset lifting power meter comprises a serial station required power meter and a split station required power meter, and the split station required power meter comprises a vehicle speed and battery reference lifting power which are in one-to-one correspondence;

The target vehicle is started based on the battery reference boost power.

In an embodiment, before the matching is performed based on the current vehicle speed and the preset boost power meter to obtain the battery reference boost power, the method further includes:

acquiring engine parameters of a test vehicle, and acquiring starting working conditions and flywheel end torque according to the engine parameters;

Obtaining the maximum discharge power required by the generator according to the engine parameters and the flywheel end torque based on the starting station;

Obtaining reserved power of a driving motor, and obtaining battery reference boost power according to the maximum discharge power required by the generator and the reserved power of the driving motor;

And constructing a preset boost power meter according to the test vehicle speed in the engine parameters and the battery reference boost power.

In one embodiment, the start-up station comprises a tandem station;

the maximum discharge power required by the generator is obtained based on the starting station according to the engine parameters and the flywheel end torque, and the method comprises the following steps:

When the starting station is a serial station, a plurality of reference rotating speeds are obtained according to the test speeds in the engine parameters;

Obtaining a plurality of required powers according to the flywheel end torque and a plurality of reference rotating speeds;

and comparing a plurality of the required powers to obtain the maximum discharge power required by the generator.

In one embodiment, the start-up station comprises a diversion station;

the maximum discharge power required by the generator is obtained based on the starting station according to the engine parameters and the flywheel end torque, and the method further comprises the following steps:

when the starting station is a shunting station, acquiring a test speed and a rotating speed transfer coefficient of a test vehicle;

obtaining a plurality of reference rotational speeds according to the test speeds in the engine parameters;

obtaining the rotation speed of the generator according to the reference rotation speed, the test speed and the rotation speed transmission coefficient;

Obtaining generator torque according to the flywheel end torque and the rotation speed transmission coefficient, and obtaining a plurality of reference powers according to the generator rotation speed and the generator torque;

And comparing the plurality of reference powers to obtain the maximum discharge power required by the generator corresponding to each test speed.

In an embodiment, the battery reference boost power comprises a series battery reference boost power and a shunt battery reference boost power; the obtaining the reserved power of the driving motor, obtaining the battery reference boost power according to the maximum discharge power required by the generator and the reserved power of the driving motor, comprises the following steps:

Obtaining reserved power of a driving motor;

When the starting station is a serial station, obtaining serial battery reference lifting power according to the maximum discharge power required by the generator and the reserved power of the driving motor;

When the starting station is a shunting station, shunting battery reference lifting power under different speeds is obtained according to the maximum discharge power required by the generator and the reserved power of the driving motor;

In an embodiment, the constructing a preset boost power meter according to the test vehicle speed in the engine parameters and the battery reference boost power includes:

Constructing a shunt preset boost power meter according to the test vehicle speed and the shunt battery reference boost power at different speeds;

Obtaining a series preset boost power meter according to the series battery reference boost power;

And obtaining a preset lifting power meter according to the split preset lifting power meter and the serial preset lifting power meter.

In an embodiment, the obtaining the engine parameter of the test vehicle, and obtaining the starting condition and the flywheel end torque according to the engine parameter includes:

Acquiring engine parameters of a test vehicle, wherein the engine parameters comprise a starting instruction, an actual rotating speed and a target rotating speed;

Obtaining a starting station based on the engine starting instruction;

and obtaining the torque of the flywheel end according to the actual rotating speed and the target rotating speed.

In an embodiment, the obtaining the flywheel end torque according to the actual rotation speed and the target rotation speed includes:

obtaining a rotation speed difference value according to the actual rotation speed and the target rotation speed;

And inquiring a preset starting torque table based on the rotating speed difference value to obtain flywheel end torque.

In addition, in order to achieve the above object, the present application also proposes a vehicle starting apparatus including:

the parameter acquisition module is used for acquiring the current speed and the current station of the target vehicle;

The power lifting module is used for matching the current speed and the current station with a preset required power meter to obtain battery reference lifting power, the preset lifting power meter comprises a serial station required power meter and a split station required power meter, and the split station required power meter comprises a vehicle speed and battery reference lifting power which are in one-to-one correspondence;

A vehicle launch module for launching the target vehicle based on the battery reference boost power.

In addition, in order to achieve the above object, the present application also proposes a vehicle starting apparatus comprising: a memory, a processor and a computer program stored on the memory and executable on the processor, the computer program being configured to implement the steps of the vehicle start method as described above.

In addition, in order to achieve the above object, the present application also proposes a storage medium, which is a computer-readable storage medium, on which a computer program is stored, which computer program, when being executed by a processor, implements the steps of the vehicle starting method as described above.

Furthermore, to achieve the above object, the present application provides a computer program product comprising a computer program which, when executed by a processor, implements the steps of the vehicle start method as described above.

One or more technical schemes provided by the application have at least the following technical effects:

The method comprises the steps of establishing lifting power tables of different stations in advance, determining the type of the table to be queried through a starting station of a vehicle in the actual starting process of the vehicle, matching the current starting vehicle speed with a current station demand power table to obtain corresponding lifting power when the current station is in a split station, directly obtaining the lifting power based on the split station demand power table when the current station is in a serial station, improving the temporary discharging power of a battery based on the lifting power, starting based on the temporary discharging power, and avoiding the vehicle pause caused by the reduction of the driving power of a precursor motor due to the fact that the power of the precursor motor is called to exceed the reserved power during starting.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.

In order to more clearly illustrate the embodiments of the application or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.

FIG. 1 is a schematic flow chart of a vehicle starting method according to an embodiment of the present application;

FIG. 2 is a flow chart illustrating a vehicle power boost according to an embodiment of a vehicle start method of the present application;

FIG. 3 is a schematic flow chart of a second embodiment of a vehicle starting method according to the present application;

FIG. 4 is a schematic diagram illustrating a step of calculating boost power according to an embodiment of the present application;

FIG. 5 is a schematic block diagram of a vehicle starting apparatus according to an embodiment of the present application;

Fig. 6 is a schematic device structure diagram of a hardware operating environment related to a vehicle starting method according to an embodiment of the present application.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the technical solution of the present application and are not intended to limit the present application.

For a better understanding of the technical solution of the present application, the following detailed description will be given with reference to the drawings and the specific embodiments.

The main solutions of the embodiments of the present application are: acquiring the current speed and the current station of a target vehicle; the method comprises the steps that based on the current speed and the current station, the current station is matched with a preset required power meter to obtain battery reference lifting power, the preset lifting power meter comprises a serial station required power meter and a split station required power meter, and the split station required power meter comprises a vehicle speed and battery reference lifting power which are in one-to-one correspondence; the target vehicle is started based on the battery reference boost power.

In the present embodiment, for convenience of description, description will be made below with the recognition of the vehicle starting apparatus as the execution subject.

Because in the prior art, in a hybrid electric vehicle type, an engine is started according to driving control requirements, a customer has a power requirement full throttle or a large throttle to start the engine under a pure electric driving condition, in a hybrid electric drive assembly in the market, no matter in a series starting mode or a power splitting starting mode, the P1 generator needs to consume battery discharge power in the starting process, and the hybrid electric drive assembly is used for dragging a scene of starting the engine, and the starting performance is an important index of the current customer for selecting the hybrid electric vehicle.

The application provides a solution, which is to pre-establish a lifting power table of different stations, determine the table according to the starting station of the vehicle in the actual starting process of the vehicle, obtain lifting power by inquiring the table, improve the temporary discharging power of the battery based on the lifting power, start based on the temporary discharging power, and avoid the vehicle frustration caused by the reduction of the driving power of the precursor motor due to the fact that the power of the precursor motor is called to exceed the reserved power during starting.

From the above embodiments, the present application discloses obtaining the current speed and the current station of the target vehicle; the method comprises the steps that based on the current speed and the current station, the current station is matched with a preset required power meter, battery reference lifting power is obtained, the preset lifting power meter comprises a serial station required power meter and a shunt station required power meter, and the shunt station required power meter comprises the speed and the battery reference lifting power; starting the target vehicle based on the battery reference boost power; according to the method, the lifting power tables of different stations are established in advance, in the actual starting process of the vehicle, the tables are determined according to the starting stations of the vehicle, lifting power is obtained through table inquiry, temporary discharging power of a battery is improved based on the lifting power, starting is performed based on the temporary discharging power, and vehicle frustration caused by reduction of driving power of a precursor motor due to the fact that the power of the precursor motor is called to exceed reserved power during starting is avoided.

It should be noted that, the execution body of the embodiment may be a computing service device having functions of data processing, network communication and program running, such as a tablet computer, a personal computer, a mobile phone, or an electronic device, a vehicle starting device, or the like, which can implement the above functions. The present embodiment and the following embodiments will be described below with reference to a vehicle starting apparatus as an example.

Based on this, an embodiment of the present application provides a vehicle starting method, and referring to fig. 1, fig. 1 is a schematic flow chart of a first embodiment of the vehicle starting method of the present application.

In this embodiment, the vehicle starting method includes steps S10 to S40:

step S10, the current speed and the current station of the target vehicle are obtained.

It is understood that the current speed of the target vehicle may be the required speed at the start of the target vehicle, or may be the speed corresponding to the torque given by the user based on the pedal.

It should be appreciated that when the vehicle is started, there may be a plurality of start stations, such as a split station and a tandem station, based on the user's selection, and the current station may be either a split station or a tandem station.

It is to be noted that, based on different starting modes of the vehicle corresponding to different stations, the split stations correspond to power split modes, and the power split modes realize stepless speed change through an integrated motor and a planetary gear structure; the motor can be coupled with the power output of the engine and provide the power output of the motor to realize power split; by adjusting the rotation speed and torque of the engine, the hybrid power functions of parking charging, pure electric power split running, energy recovery and the like are realized.

Step S20, based on the current speed and matching between the current station and a preset required power meter, battery reference lifting power is obtained, the preset lifting power meter comprises a serial station required power meter and a split station required power meter, and the split station required power meter comprises one-to-one corresponding speed and battery reference lifting power.

During the starting process of the vehicle, when the user starts the vehicle at full throttle, the electric power of the generator is divided into two parts when the user needs to consume the battery discharge power to drag the engine to rotate, wherein one part is the battery allowable discharge power for driving the motor to consume, and the other part is the reserved discharge power for dragging the engine to start; when the full throttle is started, the power battery reserved for the self consumption of the driving motor permits the discharge power to be consumed.

It should be appreciated that the battery may continue to operate for a certain period of time at a discharge power, and that allowable discharge power is typically related to battery capacity, battery temperature, battery SOC, low capacity, low or high battery temperature, and low battery SOC, all of which may result in a decrease in allowable discharge power. In general, a hybrid vehicle uses a discharge power which can be maintained for a battery for 10 seconds.

It should be understood that, in the hybrid vehicle energy management control, a certain discharge power is reserved for the start engine in order to ensure that the start engine is smoothly operated.

It should be noted that the preset required power meter may include a serial station required power meter and a shunt station required power meter, where the battery reference boost power in the serial station required power meter is irrelevant to the vehicle speed, and any vehicle speed corresponds to a battery reference boost power; the split station demand power meter comprises vehicle speed and battery reference boost power which are in one-to-one correspondence.

When the current station is in the split station, the target vehicle is in a power split mode, the current speed of the target vehicle is matched with the speed in the split station demand power meter based on the power split mode, and after the matching is successful, the battery reference lifting power corresponding to the speed in the meter is used as the battery reference lifting power of the current speed.

It should be noted that, the current speed of the target vehicle cannot be the same as the speed in the split station demand power meter, and the matching between the speed of the target vehicle and the speed in the meter may be to find two speeds closest to the current speed in the meter, and obtain the battery reference boost power of the current speed according to the battery reference boost powers corresponding to the two speeds.

In a specific implementation, the current station is divided into six stations, the current speed is 60km/h, the two most connected speeds in the table are 58km/h and 62km/h, wherein the battery reference lifting power corresponding speed of the table is a, the battery reference lifting power corresponding to the 62 speed is b, and then the difference value calculation is carried out on the current speed of 60km/h according to 58/a and 62/b, for example: 58/a=62/b=60/c, where c is the battery reference boost power for the current vehicle speed.

Step S30, starting the target vehicle based on the battery reference boost power.

It can be understood that the battery reference boost power may be a power that allows the battery to be overdischarged in a short time, for example, the battery power is a, where a=b+c, b is a permissible discharge power, c is a reserved discharge power, c is excessively used in the actual use process, c ' is actually used, a ' is larger than a, and a ' is larger than a; in order to avoid overdischarge of the battery, it is generally the case that b is reduced, but the reduction of b will cause a vehicle bump phenomenon, and the value of a is temporarily increased in this embodiment, similar to temporarily allowing the battery to overdischarge, to obtain a ', where a' can be understood as the reference boost power of the battery, where b is not reduced to avoid overdischarge because the vehicle is temporarily allowed to overdischarge when the vehicle is started, so as to avoid the occurrence of the vehicle bump phenomenon.

It should be emphasized that the whole vehicle starting process may be to determine whether the engine is started first, and when the engine is started, the battery is subjected to over-discharge protection permission discharge power boost based on the station, the vehicle is started based on the boosted discharge power, and the vehicle is stopped after the start is completed, and the specific power boost process may refer to fig. 2.

The embodiment provides a vehicle starting method, which comprises the steps of pre-establishing lifting power tables of different stations, determining the type of a table to be queried through a starting station of a vehicle in the actual starting process of the vehicle, matching a current starting vehicle speed with a current station demand power table to obtain corresponding lifting power when the current station is in a split station, directly obtaining the lifting power based on the split station demand power table when the current station is in a serial station, improving the temporary discharging power of a battery based on the lifting power, starting based on the temporary discharging power, and avoiding vehicle jerk caused by the fact that the driving power of a precursor motor is reduced due to the fact that the power of a precursor motor is called to exceed the reserved power during starting.

In the second embodiment of the present application, the same or similar content as in the first embodiment of the present application may be referred to the above description, and will not be repeated. On this basis, referring to fig. 3, before step S10, the vehicle starting method further includes steps S01 to S04:

And S01, obtaining engine parameters of the test vehicle, and obtaining starting working conditions and flywheel end torque according to the engine parameters.

It is understood that the test vehicles may be of the same type or model or lot of vehicles as the target vehicle.

It is understood that the starting station of the test vehicle may be obtained according to a user selection when the test vehicle is started; the test vehicle is provided with two stations, a serial station and a diversion station, a user selects a selection station when starting, and the vehicle is started based on the selection station.

It is understood that flywheel end torque when the flywheel end torque vehicle is started refers to the torque that the starter motor (typically the starter motor) transfers to the engine flywheel through the flywheel ring gear at the moment of engine start.

In one possible embodiment, step S01 may include steps a011 to a013:

step A011, obtaining engine parameters of the test vehicle, wherein the engine parameters comprise a starting instruction, an actual rotating speed and a target rotating speed.

It is understood that the start command may be a command generated when the user wants to start the vehicle, may be generated based on a start button, or may be generated based on pedal triggering.

It should be understood that the actual rotation speed may be a speed that is expected by a user according to the actual rotation speed of the engine at the time of starting, and the target rotation speed may be a speed that is expected by the user according to the accelerator pedal opening at the time of starting, thereby obtaining the target rotation speed.

Step A012, obtaining a starting station based on the engine starting instruction.

It is understood that the user generates a start instruction according to the start button or the pedal opening, and the user selects a start mode while generating the instruction, and obtains the start instruction based on the start mode.

It should be understood that the current starting station of the engine can be determined by the starting mode corresponding to the starting instruction, and in short, the user can select the starting mode by the vehicle hand lever or other buttons when starting, so as to activate the vehicle control system to start the vehicle.

It is understood that the start-up station includes a tandem station and a split station.

And step A013, obtaining flywheel end torque according to the actual rotating speed and the target rotating speed.

It is noted that, a rotation speed difference value is obtained according to the actual rotation speed and the target rotation speed; and inquiring a preset starting torque table based on the rotating speed difference value to obtain flywheel end torque.

It can be understood that the difference between the target rotation speed and the actual rotation speed or the actual rotation speed and the target rotation speed can be obtained, so that the difference between the rotation speeds is in a positive number;

It should be understood that the flywheel end torque may be preset based on different differences to obtain a rotational speed difference-flywheel end torque table, and reference may be made to table 1 specifically:

In this embodiment, the starting station of the engine is determined by the starting instruction of the test vehicle, the rotation speed difference is obtained according to the actual rotation speed and the target rotation speed, the flywheel end torque of the test vehicle is rapidly known based on the rotation speed difference inquiry preset table, the test vehicle obtains corresponding battery reference lifting power under different working conditions, and a more accurate preset lifting power meter is constructed.

The above is only a possible implementation of step S01 provided in this embodiment, and the specific implementation of step S10 in this embodiment is not specifically limited.

And step S02, obtaining the maximum discharge power required by the generator based on the starting station according to the engine parameters and the flywheel end torque.

It will be appreciated that the maximum discharge power demanded by the generator may be the actual power required by the generator to drag the engine at this start-up station.

In one possible implementation, the step S02 may include steps A021-A023:

And A021, when the starting station is a serial station, obtaining a plurality of reference rotating speeds according to the test speed in the engine parameters.

It should be noted that, the plurality of reference speeds obtained according to the test speed in the engine parameters may be a plurality of speeds extracted from the process from zero to the test speed of the engine starting speed.

It should be emphasized that when the starting station is a serial station, the engine is started in a serial mode, and the engine is directly coupled with the generator but is not coupled with the wheel end, so that the starting power is not related to the vehicle speed, and therefore the required power of the generator is the same as the required power of the flywheel end.

And step A022, obtaining a plurality of required powers according to the flywheel end torque and a plurality of reference rotating speeds.

It should be noted that, the calculation formula of the required power may be expressed as n _ice* T_strt/9550, where n _ice represents the reference rotational speed, and T _strt represents the flywheel end torque corresponding to the reference rotational speed.

And A023, comparing a plurality of the required powers to obtain the maximum discharge power required by the generator.

It will be appreciated that in this embodiment the engine is directly coupled to the generator but not to the wheel end, and that the plurality of required power levels are the same, and that if there are differences for further analysis, this embodiment is not further limited, and that if there are different situations, the maximum value is selected.

In the embodiment, the engine parameters of the vehicle are tested to simulate the starting of the target vehicle at different starting stations, the preset starting torque table is inquired according to the actual rotating speed and the target rotating speed during starting to obtain the corresponding flywheel end torque, then the battery reference lifting power at different stations is calculated according to the flywheel end torque, the lifting power of the target vehicle at different vehicle speeds at different stations is accurately simulated, and accordingly a more accurate preset lifting power table is constructed.

In another possible embodiment, the step S02 may include steps B021 to A023:

and step B021, when the starting station is a diversion station, acquiring the test speed and the rotation speed transfer coefficient of the test vehicle.

It is understood that the test speed may be the speed at which the test vehicle is started when the start test is performed, wherein the speed transfer coefficient may be the conversion of the rim speed into the carrier ring gear speed transfer coefficient and the carrier transfer coefficient.

And step B022, obtaining a plurality of reference rotating speeds according to the test speeds in the engine parameters.

It should be emphasized that the power split mode is used for starting, the engine is coupled with the generator and also coupled with the wheel end, and in the starting process, the starting power of the generator is determined in a power split mode, namely, the vehicle speed is different, and the power required by the generator is different.

And step B023, obtaining the rotating speed of the generator according to the reference rotating speed, the test speed and the rotating speed transmission coefficient.

It will be appreciated that the generator speed=k×n _ice–( k-1)*V*K_ratio, where K represents a speed transmission coefficient, K _ratio represents a conversion of the rim-to-rim speed to the carrier ring speed transmission coefficient, V represents a test speed, n _ice represents a reference speed, and T _strt represents a flywheel end torque corresponding to the reference speed.

And step B024, obtaining generator torque according to the flywheel end torque and the rotation speed transmission coefficient, and obtaining a plurality of reference powers according to the generator rotation speed and the generator torque.

Generator torque=t _strt/k, where k represents a rotational speed transmission coefficient.

Note that, reference power=n _{P1 Electric generator}* T_{P1 Electric generator}/9550, where n _{P1 Electric generator} represents a generator rotation speed, and T _{P1 Electric generator} represents a generator torque.

And B025, comparing the reference powers to obtain the maximum discharge power required by the generator corresponding to each test speed.

It can be understood that because of the power splitting modes corresponding to the splitting stations, the power required by the generators is different at different speeds, different power required by the generators is corresponding to different speeds, and the reference power is compared to obtain the maximum reference power as the maximum power required by the generators.

In this embodiment, when the vehicle starting station is determined to be the shunting station, the engine is coupled with the P1 generator and is also coupled with the wheel end, in the starting process, the vehicle speed is different, the required power of the P1 generator is different, the reference rotation speeds corresponding to the multiple reference vehicle speeds are extracted based on the test vehicle speed, the maximum required power in the multiple required power of the generator is obtained based on each reference rotation speed and is used as the maximum required power of the battery under the test vehicle speed, the required power of the battery dragging engine can be estimated more accurately, and therefore the more accurate lifting power is estimated based on the reserved power of the battery.

The above are merely two possible implementations of step S02 provided in this embodiment, and the embodiment is not particularly limited to the specific implementation of step S02.

And S03, obtaining reserved power of the driving motor, and obtaining battery reference boost power according to the maximum discharge power required by the generator and the reserved power of the driving motor.

It is understood that the reserved power of the driving motor can be reserved by a battery when the driving motor drives the motor, and is a part of the total power of the driving motor.

It should be understood that the maximum discharge power demanded by the generator is the power actually demanded by the generator to drive the engine for vehicle start.

It should be noted that, obtaining the battery reference boost power according to the maximum discharge power required by the generator and the reserved power of the driving motor includes: when the starting station is a serial station, obtaining serial battery reference lifting power according to the maximum discharge power required by the generator and the reserved power of the driving motor; and when the starting station is a shunting station, obtaining shunting battery reference lifting power at different speeds according to the maximum discharge power required by the generator and the reserved power of the driving motor.

It can be understood that when the starting station is a serial station, the reference boost power of the serial battery can be obtained by subtracting the reserved power of the driving motor from the maximum discharge power required by the generator, and the boost power of the battery of the serial station is irrelevant to the speed, so that the corresponding power provided by serial starting is the same at any vehicle speed.

It should be understood that when the starting station is a serial station, the reference boost power of the serial battery can be obtained by subtracting the reserved power of the driving motor from the maximum discharge power required by the generator, the boost power of the battery of the serial station is related to the speed, and the corresponding boost power at each test speed is calculated respectively.

And S04, constructing a preset boost power meter according to the test vehicle speed in the engine parameters and the battery reference boost power.

It is understood that the preset boost power meter includes a series power boost meter and a shunt boost power meter.

In one possible embodiment, step S04 may include steps a 01-a 043:

And step A041, constructing a shunt preset boost power meter according to the test vehicle speed and the shunt battery reference boost power at different speeds.

It can be appreciated that, at the split station, different speeds correspond to different boost powers, and the split preset boost power meter constructed according to the test vehicle speed and the split battery reference boost powers at different speeds can be referred to the following table 2:

Wherein V1-V5 represent different test vehicle speeds, and Poffset-V1 represents the reference boost power of the split battery under the V1 vehicle speed.

And step A042, obtaining a series preset boost power meter according to the series battery reference boost power.

It can be appreciated that, in the tandem station, different vehicle speeds correspond to the same tandem battery reference boost power, and the tandem preset boost power meter can refer to the following table 3:

wherein V1-V5 represent different test vehicle speeds, and Poffset represents the reference boost power of the series battery.

And step A043, obtaining a preset lifting power meter according to the split preset lifting power meter and the serial preset lifting power meter.

It should be noted that, when the engine is started, the over-discharge control is started to permit the discharge power to rise and withdraw, that is, to recover to the battery permitting discharge power threshold, in short, after the start is successful, the battery reference lifting power obtained according to the preset lifting power meter is changed into the original battery power again.

In a specific implementation, the calculation of the battery reference boost power may be to obtain a start mode based on the start station, then calculate the maximum discharge power required by the generator based on different start modes, subtract the reserved power of the driving motor from the maximum discharge power required by the generator, and obtain the battery reference boost power, and the specific boost power calculation step may refer to fig. 4.

In this embodiment, a series preset boost power meter is obtained by referencing boost power with batteries under a series working condition, a shunt preset boost power meter is constructed according to battery reference boost power corresponding to different speeds under a shunt working condition, and a final preset boost power meter is obtained by combining the series preset boost power meter and the shunt preset boost power meter.

The above is only a possible implementation of step S04 provided in this embodiment, and the specific implementation of step S04 in this embodiment is not specifically limited.

The embodiment provides a vehicle starting method, which is characterized in that a vehicle is tested to start under different starting stations, the maximum discharge power required by a generator is calculated and responded based on pertinence of a serial station and a shunt station, the different vehicle speeds are tested for the shunt station based on correlation between the required power and the vehicle speed in the shunt station, a preset lifting power meter is built according to the battery reference lifting power of the serial station and the battery reference lifting power of the serial station in different vehicle speeds during testing, when a target vehicle is started, the preset lifting power meter is quickly inquired according to the starting station, the starting is performed based on the battery reference lifting power obtained through inquiry, and the problem that a driving motor is used for avoiding the phenomenon that the vehicle is in pause and frustration caused by the fact that the driving power is reduced due to overdischarge is effectively avoided.

It should be noted that the foregoing examples are only for understanding the present application, and are not to be construed as limiting the method for starting the vehicle of the present application, and that many simple modifications based on the technical idea are within the scope of the application.

The present application also provides a vehicle starting apparatus, referring to fig. 5, the vehicle starting apparatus includes:

The parameter acquisition module 10 is used for acquiring the current speed and the current station of the target vehicle;

the power boost module 20 is configured to obtain a battery reference boost power based on the current vehicle speed and the current station and a preset required power meter, where the preset boost power meter includes a serial station required power meter and a split station required power meter, and the split station required power meter includes a vehicle speed and a battery reference boost power that are in one-to-one correspondence;

a vehicle launch module 30 for launching the target vehicle based on the battery reference boost power.

The vehicle starting device provided by the application can solve the technical problems that the power/torque of the precursor driving motor is reduced, so that a pause state occurs in the vehicle starting process, and the driving experience of the vehicle is influenced by the vehicle starting method. Compared with the prior art, the vehicle starting device has the same beneficial effects as the vehicle starting method provided by the embodiment, and other technical features in the vehicle starting device are the same as the features disclosed by the method of the embodiment, and are not repeated herein.

The present application provides a vehicle starting apparatus, the vehicle starting apparatus including: at least one processor; and a memory communicatively coupled to the at least one processor; the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the vehicle starting method according to the first embodiment.

Referring now to fig. 6, a schematic diagram of a vehicle starting apparatus suitable for use in implementing an embodiment of the present application is shown. The vehicle starting apparatus in the embodiment of the present application may include, but is not limited to, mobile terminals such as mobile phones, notebook computers, digital broadcast receivers, PDAs (Personal DIGITAL ASSISTANT: personal digital assistants), PADs (Portable Application Description: tablet computers), PMPs (Portable MEDIA PLAYER: portable multimedia players), vehicle-mounted terminals (e.g., vehicle-mounted navigation terminals), and the like, and fixed terminals such as digital TVs, desktop computers, and the like. The vehicle starting apparatus shown in fig. 6 is only one example, and should not impose any limitation on the functions and the scope of use of the embodiment of the present application.

As shown in fig. 6, the vehicle starting apparatus may include a processing device 1001 (e.g., a central processing unit, a graphics processor, etc.) that may perform various appropriate actions and processes according to a program stored in a Read Only Memory (ROM) 1002 or a program loaded from a storage device 1003 into a random access Memory (RAM: random Access Memory) 1004. In the RAM1004, various programs and data required for the operation of the vehicle starting apparatus are also stored. The processing device 1001, the ROM1002, and the RAM1004 are connected to each other by a bus 1005. An input/output (I/O) interface 1006 is also connected to the bus. In general, the following systems may be connected to the I/O interface 1006: input devices 1007 including, for example, a touch screen, touchpad, keyboard, mouse, image sensor, microphone, accelerometer, gyroscope, and the like; an output device 1008 including, for example, a Liquid crystal display (LCD: liquid CRYSTAL DISPLAY), a speaker, a vibrator, and the like; storage device 1003 including, for example, a magnetic tape, a hard disk, and the like; and communication means 1009. The communication means 1009 may allow the vehicle-enabling device to communicate wirelessly or by wire with other devices to exchange data. While a vehicle launch device having various systems is shown in the figures, it should be understood that not all of the illustrated systems are required to be implemented or provided. More or fewer systems may alternatively be implemented or provided.

In particular, according to embodiments of the present disclosure, the processes described above with reference to flowcharts may be implemented as computer software programs. For example, embodiments of the present disclosure include a computer program product comprising a computer program embodied on a computer readable medium, the computer program comprising program code for performing the method shown in the flow chart. In such an embodiment, the computer program may be downloaded and installed from a network through a communication device, or installed from the storage device 1003, or installed from the ROM 1002. The above-described functions defined in the method of the disclosed embodiment of the application are performed when the computer program is executed by the processing device 1001.

The vehicle starting equipment provided by the application can solve the technical problems that the power/torque of the precursor driving motor is reduced, so that a pause state occurs in the vehicle starting process and the driving experience of the vehicle is influenced by adopting the vehicle starting method in the embodiment. Compared with the prior art, the beneficial effects of the vehicle starting device provided by the application are the same as those of the vehicle starting method provided by the embodiment, and other technical features of the vehicle starting device are the same as those disclosed by the method of the previous embodiment, and are not repeated here.

It is to be understood that portions of the present disclosure may be implemented in hardware, software, firmware, or a combination thereof. In the description of the above embodiments, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

The present application provides a computer-readable storage medium having computer-readable program instructions (i.e., a computer program) stored thereon for performing the vehicle starting method in the above-described embodiments.

The computer readable storage medium provided by the present application may be, for example, a U disk, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, or device, or a combination of any of the foregoing. More specific examples of the computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access Memory (RAM: random Access Memory), a Read-Only Memory (ROM: read Only Memory), an erasable programmable Read-Only Memory (EPROM: erasable Programmable Read Only Memory or flash Memory), an optical fiber, a portable compact disc Read-Only Memory (CD-ROM: CD-Read Only Memory), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In this embodiment, a computer-readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, or device. Program code embodied on a computer readable storage medium may be transmitted using any appropriate medium, including but not limited to: wire, fiber optic cable, RF (Radio Frequency), and the like, or any suitable combination of the foregoing.

The above-described computer-readable storage medium may be contained in a vehicle starting apparatus; or may be present alone without being fitted into the vehicle starting apparatus.

The above computer-readable storage medium carries one or more programs that, when executed by the vehicle starting apparatus, cause the vehicle starting apparatus to: acquiring the current speed and the current station of a target vehicle; the method comprises the steps that based on the current speed and the current station, the current station is matched with a preset required power meter to obtain battery reference lifting power, the preset lifting power meter comprises a serial station required power meter and a split station required power meter, and the split station required power meter comprises a vehicle speed and battery reference lifting power which are in one-to-one correspondence; the target vehicle is started based on the battery reference boost power.

Computer program code for carrying out operations of the present application may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, smalltalk, C ++ and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of remote computers, the remote computer may be connected to the user's computer through any kind of network, including a local area network (LAN: local Area Network) or a wide area network (WAN: wide Area Network), or may be connected to an external computer (for example, through the Internet using an Internet service provider).

The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

The modules involved in the embodiments of the present application may be implemented in software or in hardware. Wherein the name of the module does not constitute a limitation of the unit itself in some cases.

The readable storage medium provided by the application is a computer readable storage medium, and the computer readable storage medium is stored with computer readable program instructions (namely computer program) for executing the vehicle starting method, so that the technical problems that the power/torque of a precursor driving motor is reduced, a bump state occurs in the vehicle starting process, and the driving experience of the vehicle is influenced can be solved. Compared with the prior art, the beneficial effects of the computer readable storage medium provided by the application are the same as those of the vehicle starting method provided by the above embodiment, and are not described herein.

The application also provides a computer program product comprising a computer program which, when executed by a processor, implements the steps of a vehicle start method as described above.

The computer program product provided by the application can solve the technical problems that the power/torque of the precursor driving motor is reduced, so that a pause state occurs in the starting process of the vehicle and the driving experience of the vehicle is influenced. Compared with the prior art, the beneficial effects of the computer program product provided by the application are the same as those of the vehicle starting method provided by the above embodiment, and are not described herein.

The foregoing description is only a partial embodiment of the present application, and is not intended to limit the scope of the present application, and all the equivalent structural changes made by the description and the accompanying drawings under the technical concept of the present application, or the direct/indirect application in other related technical fields are included in the scope of the present application.

Claims

1. A vehicle starting method, characterized in that the vehicle starting method comprises:

Acquiring the current speed and the current station of a target vehicle;

The target vehicle is started based on the battery reference boost power.

2. The vehicle starting method according to claim 1, wherein before the matching is performed based on the current vehicle speed and a preset boost power meter to obtain the battery reference boost power, further comprising:

3. The vehicle launch method of claim 2 wherein the launch station comprises a tandem station;

4. The vehicle launch method of claim 2 wherein the launch station comprises a diversion station;

5. The vehicle starting method of claim 4, wherein the battery reference boost power comprises a series battery reference boost power and a shunt battery reference boost power;

The obtaining the reserved power of the driving motor, obtaining the battery reference boost power according to the maximum discharge power required by the generator and the reserved power of the driving motor, comprises the following steps:

Obtaining reserved power of a driving motor;

the construction of the preset boost power meter according to the test vehicle speed in the engine parameters and the battery reference boost power comprises the following steps:

6. The vehicle starting method according to claim 2, wherein the obtaining engine parameters of the test vehicle, and obtaining the starting condition and the flywheel end torque according to the engine parameters, comprises:

Obtaining a starting station based on the engine starting instruction;

7. The vehicle starting method according to claim 6, wherein said deriving flywheel end torque from said actual rotational speed and said target rotational speed includes:

8. A vehicle starting apparatus, characterized in that the vehicle starting apparatus comprises:

9. A vehicle starting apparatus, characterized in that the apparatus comprises: a memory, a processor, and a vehicle start-up program stored on the memory and executable on the processor, the vehicle start-up program configured to implement the vehicle start-up method of any one of claims 1 to 7.

10. A storage medium having stored thereon a vehicle start-up program which when executed by a processor implements the vehicle start-up method according to any one of claims 1 to 7.