CN114248769B

CN114248769B - Vehicle starting method, device, storage medium, system and diesel vehicle

Info

Publication number: CN114248769B
Application number: CN202011012190.0A
Authority: CN
Inventors: 周明旺; 赵彦新
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2020-09-23
Filing date: 2020-09-23
Publication date: 2023-07-07
Anticipated expiration: 2040-09-23
Also published as: CN114248769A

Abstract

The disclosure relates to a vehicle starting method, a device, a storage medium, a system and a diesel vehicle, which solve the problems that when a vehicle is in a plateau working condition and the vehicle has a starting request, the vehicle is failed to start due to insufficient electric quantity of a power battery, and the vehicle using experience of a user is reduced. The method comprises the following steps: acquiring state information of a vehicle; judging whether the vehicle is in a plateau working condition or not according to the state information, and judging whether the vehicle has a starting request or not; under the condition that the vehicle is in a highland working condition and the vehicle has a starting request, acquiring the power battery electric quantity of the vehicle, and judging whether the power battery electric quantity is smaller than an electric quantity threshold value or not; and under the condition that the power battery power is smaller than the power threshold, starting a low-voltage load on the vehicle for supplying power by using a low-voltage storage battery, and controlling an engine of the vehicle to only drive the vehicle to start.

Description

Vehicle starting method, device, storage medium, system and diesel vehicle

Technical Field

The disclosure relates to the technical field of automobile electronics, in particular to a vehicle starting method, a vehicle starting device, a storage medium, a storage system and a diesel vehicle.

Background

With the improvement of the living standard of people, the purchase and the use of automobiles are more and more common, and with the gradual shortage of global resources and the gradual serious environmental pollution, the environmental protection problem becomes the focus of each industry, and compared with the gasoline vehicles, the diesel vehicles have the advantages of high efficiency, low energy consumption, long service life of the vehicles and the like, so that the diesel vehicles become the main stream of the development of the automobile industry. When the atmospheric pressure of the diesel vehicle in the plateau area is too low, the fuel in the diesel engine cannot be fully combusted, so that the vehicle starts to fail, and the vehicle using experience of a user in the plateau environment is reduced.

In the related art, when the diesel vehicle is in a plateau working condition, the diesel engine outputs insufficient power, and a generator on the diesel vehicle supplements a part of power for the diesel vehicle through power-assisted power generation, so that the vehicle can be started smoothly.

Disclosure of Invention

The invention aims to provide a vehicle starting method, a device, a storage medium, a system and a diesel vehicle, which solve the technical problems that in the related art, the diesel vehicle fails to start under the plateau working condition, and the vehicle using experience of a user is reduced.

To achieve the above object, in a first aspect, the present disclosure provides a vehicle starting method, the vehicle including a power battery and a low-voltage storage battery, the method comprising:

acquiring state information of a vehicle;

judging whether the vehicle is in a plateau working condition or not according to the state information, and judging whether the vehicle has a starting request or not;

under the condition that the vehicle is in a highland working condition and the vehicle has a starting request, acquiring the power battery electric quantity of the vehicle, and judging whether the power battery electric quantity is smaller than an electric quantity threshold value or not;

and under the condition that the electric quantity of the power battery is smaller than the electric quantity threshold value, starting a low-voltage storage battery to supply power to a low-voltage load on the vehicle, and controlling an engine of the vehicle to drive the vehicle to start in a starting stage.

Optionally, after controlling the engine of the vehicle to drive only the vehicle for launch, the method further comprises:

acquiring the speed of the vehicle and judging whether the speed is zero or not;

and under the condition that the vehicle speed is not zero, the vehicle is started successfully, the engine of the vehicle is controlled to provide mechanical energy for the generator of the vehicle so as to enable the generator to generate electricity, and the generator of the vehicle is controlled to charge the power battery.

Optionally, the method further comprises:

acquiring the starting time of the vehicle under the condition that the vehicle speed is zero, wherein the starting time of the vehicle comprises the driving time of the engine for driving the vehicle to start;

judging whether the starting time of the vehicle is greater than a time threshold;

controlling an engine of the vehicle to provide mechanical energy to a generator of the vehicle to enable the generator to generate electricity when the starting time of the vehicle is greater than the time threshold;

and under the condition that the starting time of the vehicle is smaller than the time threshold value, controlling the low-voltage storage battery to continuously supply power to a low-voltage load on the vehicle, and controlling an engine of the vehicle to only drive the vehicle to start.

Optionally, the state information of the vehicle comprises atmospheric pressure of the environment where the vehicle is located, positioning information of the vehicle, pressure of a brake master cylinder, opening degree of an accelerator pedal and on-off state of an automatic parking function;

the step of judging whether the vehicle is in a plateau working condition and whether the vehicle has a starting request according to the state information comprises the following steps:

judging whether the vehicle is in a plateau working condition or not according to the atmospheric pressure of the environment where the vehicle is and/or the positioning information of the vehicle;

and judging whether the vehicle has a starting request according to the pressure of the brake master cylinder, the opening degree of the accelerator pedal and the on-off state of the automatic parking function.

Optionally, the determining whether the vehicle has a starting request according to the pressure of the brake master cylinder, the opening of the accelerator pedal, and the on-off state of the automatic parking function includes:

and under the conditions that the pressure of the brake master cylinder is smaller than a second preset pressure, the opening of the accelerator pedal is larger than or equal to zero, and the automatic parking function is in a closed state, judging that a starting request exists for the vehicle.

Optionally, the controlling the engine of the vehicle to drive only the vehicle to start, includes:

and controlling the engine to drive the vehicle to start only by prohibiting the generator of the vehicle from sending a power generation request to the engine.

In a second aspect, the present disclosure provides a vehicle launch device, the vehicle including a power cell and a low voltage battery, the device comprising:

an acquisition module configured to acquire status information of a vehicle;

the first judging module is configured to judge whether the vehicle is in a plateau working condition or not and whether the vehicle has a starting request or not according to the state information;

the second judging module is configured to acquire the power battery electric quantity of the vehicle and judge whether the power battery electric quantity is smaller than an electric quantity threshold value under the condition that the vehicle is in a plateau working condition and has a starting request;

and the control module is configured to enable a low-voltage storage battery to supply power to a low-voltage load on the vehicle and control an engine of the vehicle to drive the vehicle to start under the condition that the power battery power is smaller than the power threshold.

In a third aspect, the present disclosure provides a computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of the vehicle launch method described above.

In a fourth aspect, the present disclosure provides a vehicle launch system comprising:

a memory having a computer program stored thereon;

and the processor is used for executing the computer program in the memory to realize the steps of the vehicle starting method.

In a fifth aspect, the present disclosure provides a diesel vehicle comprising the vehicle launch system described above.

Through the technical scheme, the electric quantity state of the power battery of the vehicle is judged under the condition that the vehicle is in the plateau working condition and the vehicle has a starting request, the low-voltage storage battery is started to supply power for the low-voltage load on the vehicle under the condition that the electric quantity state of the power battery is too low, the power battery is prevented from being damaged, the engine is controlled to only drive the vehicle to start, the successful starting of the vehicle under the condition that the electric quantity of the power battery is too low under the plateau working condition is realized, and the vehicle using experience of a user is improved.

Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure. In the drawings:

FIG. 1 is a flow chart illustrating a method of vehicle launch according to an exemplary embodiment.

FIG. 2 is another flow chart illustrating a method of vehicle launch according to an exemplary embodiment.

Fig. 3 is a block diagram illustrating a vehicle launch device according to an exemplary embodiment.

FIG. 4 is a block diagram illustrating a vehicle launch system according to an exemplary embodiment.

Detailed Description

The following detailed description of exemplary embodiments of the present disclosure, taken in conjunction with the accompanying drawings, should be understood that the detailed description described herein is for purposes of illustration and explanation only, and not limitation of the disclosure.

When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.

It should be noted that, in this disclosure, the terms "first," "second," and the like in the description and the claims, and in the drawings, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. Similarly, the terms "S110", "S120", etc. are used to distinguish steps and are not necessarily to be construed as performing the method steps in a particular order or sequence.

Before introducing the vehicle starting method, device, storage medium, system and diesel vehicle provided by the disclosure, an application scenario of the disclosure is first described. The vehicle starting method provided by the present disclosure may be applied to a vehicle, which may be a diesel vehicle, for example.

For how to avoid the failure of starting the diesel vehicle under the working condition of the plateau, the vehicle using experience of a user is improved, and the related technology is that when the diesel engine of the diesel vehicle is insufficient in output power, a part of power is supplemented for the diesel vehicle through the power generation of a generator on the diesel vehicle, so that the vehicle is started smoothly.

However, the inventor finds that when the vehicle is in a plateau environment and the power battery is too low in electric quantity, the engine is insufficiently combusted due to the influence of atmospheric pressure, so that the engine is required to provide mechanical energy for the generator to generate electricity, the engine is insufficiently driven, the diesel vehicle is failed to start, and the vehicle using experience of a user is reduced.

To solve the above technical problems, the present disclosure provides a vehicle starting method, which may include a power battery and a low-voltage battery. Taking the application of the method to a hybrid diesel vehicle as an example, fig. 1 is a flowchart illustrating a vehicle starting method according to an exemplary embodiment, as shown in fig. 1, including the following steps.

In step S110, status information of a vehicle is acquired;

in step S120, whether the vehicle is in a plateau working condition and whether the vehicle has a start request is determined according to the state information;

in step S130, when the vehicle is in a plateau working condition and the vehicle has a start request, acquiring power battery electric quantity of the vehicle, and judging whether the power battery electric quantity is smaller than an electric quantity threshold;

in step S140, in the case that the power battery power is smaller than the power threshold, a low-voltage storage battery is started to supply power to a low-voltage load on the vehicle, and an engine of the vehicle is controlled to drive the vehicle only to start.

Specifically, when the electric quantity of the power battery is too low, the power battery can not provide electric energy any more, so that the power battery is prevented from being burnt out, the power battery needs to be charged, and at the moment, the low-voltage storage battery is used for supplying power to a low-voltage load on the vehicle.

Wherein the power battery of the vehicle comprises a 48V power battery, the low-voltage storage battery comprises a 12V storage battery, and the electric quantity threshold value can be a percentage of the total electric quantity of the power battery of the vehicle, and the disclosure is not particularly limited.

Specifically, the low-voltage load on the vehicle includes loads other than the power system on the vehicle, such as a lamp, an air conditioner, and the like.

According to the vehicle starting method, the electric quantity state of the power battery of the vehicle is judged when the vehicle is in the plateau working condition and the vehicle has a starting request, the low-voltage storage battery is started to supply power for the low-voltage load on the vehicle when the electric quantity state of the power battery is too low, and the engine is controlled to only drive the vehicle, so that the vehicle can be started under the plateau working condition and the condition that the electric quantity of the power battery is too low, and the vehicle using experience of a user in a plateau environment is improved.

Alternatively, in step S110, the state information of the vehicle may include an atmospheric pressure of the environment of the vehicle, positioning information of the vehicle, a pressure of a master cylinder, an accelerator pedal opening, and an on-off state of an automatic parking function.

Specifically, the pressure of the brake master cylinder and the opening degree of the accelerator pedal can be detected through a vehicle control unit (Vehicle Control Unit, VCU), the on-off state of the automatic parking function can be detected through a vehicle body electronic stability system (Electronic stability program, ESP), the atmospheric pressure of the environment where the vehicle is located can be obtained through an engine air pressure sensor by an engine control module (Engine Control Module, ECM), and the positioning information of the vehicle can be obtained through GPS satellite positioning, which is not particularly limited in the disclosure.

Optionally, in step S120, the determining, according to the state information, whether the vehicle is in a plateau working condition and whether the vehicle has a start request may include:

Specifically, the judgment of whether the vehicle is in the plateau working condition and the judgment of whether the vehicle has a starting request can be performed synchronously or separately, and the sequence of the two judgments is not particularly limited in the disclosure.

Optionally, in step S120, determining whether the vehicle is in a plateau working condition according to the atmospheric pressure of the environment where the vehicle is located and/or the positioning information of the vehicle may include:

under the condition that the atmospheric pressure of the environment where the vehicle is located is larger than a first preset pressure, judging that the vehicle is in a plateau working condition; or alternatively, the first and second heat exchangers may be,

under the condition that the positioning of the vehicle is in a plateau area, judging that the vehicle is in a plateau working condition; or alternatively, the first and second heat exchangers may be,

and under the condition that the atmospheric pressure of the environment where the vehicle is located is greater than a first preset pressure and the positioning of the vehicle is located in a plateau region, determining that the vehicle is located in a plateau working condition.

Specifically, the value of the first preset pressure and the setting of the positioning information may be set and selected according to the actual situation.

Specifically, the first preset pressure may also be preset according to a combustion condition of the vehicle engine, which is not specifically limited in the present disclosure.

For example, in the case where the atmospheric pressure of the engine is greater than the first preset pressure, it is determined that the vehicle is in the plateau condition, at which time the engine is insufficiently combusted, resulting in the engine not providing sufficient kinetic energy to the vehicle, so that the vehicle fails to start.

Optionally, in step S120, determining whether the vehicle has a start request according to the pressure of the master cylinder, the opening of the accelerator pedal, and the on-off state of the automatic parking function may include:

Specifically, the second preset pressure may be preset according to an actual working condition of the vehicle, which is not specifically limited in the present disclosure.

Optionally, in step S140, controlling the engine of the vehicle to drive only the vehicle to start may include:

and controlling the engine to only drive the vehicle to start by prohibiting the motor of the vehicle from sending a power generation request to the engine.

In this embodiment, a Belt-driven starter generator (Belt-Driven Starter Generator, BSG) is used as a generator of a vehicle, and this disclosure is not particularly limited thereto.

Specifically, when the BSG of the vehicle sends a request to the engine to generate power, the engine of the vehicle may provide mechanical energy to the BSG to cause the BSG to generate power, the BSG begins to generate power and charge the power battery, resulting in insufficient engine power to support the vehicle for launch. According to the vehicle starting control method and device, the BSG of the vehicle is prohibited from sending a power generation request to the engine, so that all power of the engine is used for supporting the vehicle to start, and the vehicle can be ensured to start successfully to the greatest extent.

Optionally, after step S140, the method may further include:

and under the condition that the vehicle speed is not zero, controlling an engine of the vehicle to provide mechanical energy for a generator of the vehicle so as to enable the generator to generate electricity, and controlling the generator to charge the power battery.

Specifically, under the condition that the vehicle speed is not zero, the vehicle is judged to be started successfully, at the moment, the low-voltage storage battery is controlled to stop supplying power to a low-voltage load on the vehicle, the generator of the vehicle is allowed to send a power generation request to the engine, the engine of the vehicle is controlled to provide mechanical energy for the generator of the vehicle so as to enable the generator to generate power, and the generator of the vehicle is controlled to charge a power battery, so that the damage of the power battery is avoided, and after-sales service is reduced.

Optionally, the method may further include:

The starting time of the vehicle may be a power supply time of the low-voltage storage battery, or may be a driving time of the engine to drive the vehicle to start, and the time threshold may be preset according to an actual starting situation of the vehicle, which is not specifically limited in the present disclosure.

Specifically, under the condition that the vehicle speed is zero, judging that the vehicle starts to fail, acquiring the starting time of the vehicle at the moment, namely, the driving time of the engine to drive the vehicle to start, judging whether the starting time of the vehicle is greater than a time threshold, and controlling a low-voltage storage battery to continuously supply power to a low-voltage load on the vehicle when the starting time of the vehicle is less than the time threshold, wherein the engine only drives the vehicle to start; when the starting time of the vehicle is greater than a time threshold, the low-voltage storage battery is controlled to stop supplying power to a low-voltage load on the vehicle, the generator of the vehicle is allowed to send a power generation request to the engine, and the engine of the vehicle is controlled to provide mechanical energy for the generator of the vehicle, so that the generator generates power to charge the power battery, the power battery is prevented from being damaged, and the after-sale problem of the vehicle is reduced.

FIG. 2 is another flow chart illustrating a method of vehicle launch according to an exemplary embodiment. As shown in fig. 2, the electronic stability system (Electronic stability program, ESP) of the vehicle body detects the on-off state of the automatic parking function and sends the on-off state to the vehicle controller (Vehicle Control Unit, VCU), the VCU detects the pressure of the brake master cylinder and the accelerator pedal opening, and the VCU determines whether the vehicle has a start request according to the pressure of the brake master cylinder, the accelerator pedal opening and the on-off state of the automatic parking function; when the pressure of the brake master cylinder is smaller than 3bar, the opening of the accelerator pedal is larger than or equal to zero, and the automatic parking function is in a closed state, the VCU judges that a starting request exists on the vehicle;

under the condition that a vehicle has a starting request, the ECM acquires the atmospheric pressure of the environment where the vehicle is located through an engine air pressure sensor and sends the atmospheric pressure to the VCU, the VCU receives and judges whether the atmospheric pressure is less than 0.7bar, when the atmospheric pressure is not less than 0.7bar, the vehicle is not in a plateau working condition, and at the moment, the vehicle starts according to a conventional plain working condition starting strategy; when the atmospheric pressure is less than 0.7bar, the vehicle is in a plateau working condition, the VCU receives the power battery power sent by a battery management system (Battery management System, BMS) at the moment, judges whether the power battery power is less than 30% of the total power, and when the power battery power is not less than 30% of the total power, the BSG assists the engine to assist the engine to drive the vehicle to start;

when the power battery electric quantity is less than 30% of the total electric quantity, the VCU controls the engine to drive the vehicle to start by prohibiting the BSG from sending a power generation request to the EMC.

The VCU receives the vehicle speed sent by the ESP and judges whether the vehicle speed is greater than 0km/h, when the vehicle speed is greater than 0km/h, the vehicle starts successfully, and the VCU allows the BSG to send a power generation request to the EMC at the moment, so that the engine is controlled to send mechanical energy to the BSG, and the BSG generates power to charge a power battery; at this time, the start time of the vehicle may be a time from when the vehicle starts to when the vehicle speed is greater than 0 km/h.

When the vehicle speed is 0km/h, the vehicle starts to fail, at the moment, the VCU acquires the vehicle starting time, judges whether the vehicle starting time is more than 10s, and when the vehicle starting time is more than 10s, if the vehicle continues to try to start, the electric quantity of the power battery is further consumed, and finally the power battery is damaged, so when the vehicle starting time is more than 10s, the VCU allows the BSG to send a power generation request to the EMC, thereby controlling the engine to provide mechanical energy for the BSG so as to enable the BSG to generate power, charge the power battery, avoid the damage of the power battery and reduce the after-sale of the vehicle; when the starting time of the vehicle is not more than 10s, the VCU controls the engine to drive the vehicle to start only by prohibiting the BSG from sending a power generation request to the EMC; the start time of the vehicle at this time may be a driving time of the engine driving the vehicle.

Fig. 3 is a block diagram of a vehicle launch device according to an exemplary embodiment, and as shown in fig. 3, the vehicle launch device 300 includes an acquisition module 301, a first determination module 302, a second determination module 303, and a control module 304;

an acquisition module 301 configured to acquire state information of a vehicle;

a first judging module 302 configured to judge whether the vehicle is in a plateau working condition and whether the vehicle has a start request according to the state information;

a second judging module 303, configured to obtain the power battery power of the vehicle and judge whether the power battery power is less than a power threshold when the vehicle is in a plateau working condition and has a start request;

the control module 304 is configured to enable a low-voltage storage battery to supply power to a low-voltage load on the vehicle when the power battery power is smaller than the power threshold, and control an engine of the vehicle to drive the vehicle to start only in a starting stage.

According to the vehicle starting device, under the condition that the vehicle is in the plateau working condition and the vehicle has a starting request, the electric quantity state of the power battery of the vehicle is judged, under the condition that the electric quantity state of the power battery is too low, the low-voltage storage battery is started to supply power to the vehicle, the damage of the power battery is avoided, the after-sales problem is reduced, the engine is controlled to only drive the vehicle, the starting of the vehicle under the condition that the electric quantity of the power battery is too low under the plateau working condition is completed, and the vehicle using experience of a user in the plateau environment is improved.

Optionally, the acquiring module 301 is configured to acquire an atmospheric pressure of an environment in which the vehicle is located, positioning information of the vehicle, a pressure of a brake master cylinder, an accelerator pedal opening, and an on-off state of an automatic parking function.

Optionally, the first judging module 302 is configured to judge whether the vehicle is in a plateau working condition according to the atmospheric pressure of the environment where the vehicle is located and/or the positioning information of the vehicle;

Optionally, the first determining module 302 is specifically configured to determine that the vehicle is in a plateau condition when the atmospheric pressure of the environment in which the vehicle is located is greater than a first preset pressure and/or the location of the vehicle is in a plateau region.

Optionally, the first determining module 302 is specifically configured to determine that the vehicle has a start request when the pressure of the brake master cylinder is less than a second preset pressure, the accelerator pedal opening is greater than or equal to zero, and the automatic parking function is in a closed state.

Optionally, the control module 304 is configured to control the engine to drive the vehicle only for launch by disabling the motor of the vehicle from sending a request for power generation to the engine.

Optionally, the vehicle starting device 300 further includes a second control module, where the second control module is configured to obtain a vehicle speed of the vehicle, and determine whether the vehicle speed is zero;

and under the condition that the vehicle speed is not zero, controlling an engine of the vehicle to provide mechanical energy for a generator of the vehicle so as to enable the generator to generate electricity, and controlling the engine to charge the power battery.

Optionally, the second control module is further configured to obtain a start time of the vehicle when the vehicle speed is zero, where the start time of the vehicle includes a driving time of the engine to drive the vehicle to start;

controlling an engine of the vehicle to provide mechanical energy to a generator of the vehicle to enable the generator to generate electricity and controlling the generator to charge the power battery under the condition that the starting time of the vehicle is greater than the time threshold;

It should be noted that, for convenience and brevity, the embodiments described in the specification are all preferred embodiments, and the related parts are not necessarily essential to the present invention, for example, the first determining module and the second determining module may be separate devices or the same device when implemented, which is not limited in this disclosure.

The specific manner in which the respective modules perform the operations in the apparatus of the above embodiments has been described in detail in the embodiments concerning the vehicle starting method, and will not be explained in detail here.

The present disclosure also provides a computer readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the steps of the vehicle launch method provided by the present disclosure.

In particular, the computer readable storage medium may be a flash memory, a hard disk, a multimedia card, a card memory (e.g., SD or DX memory, etc.), a Random Access Memory (RAM), a Static Random Access Memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, an optical disk, a server, etc.

With respect to the computer-readable storage medium in the above-described embodiments, the steps of the vehicle start method when the computer program stored thereon is executed have been described in detail in the embodiments regarding the method, and are not described in detail herein.

The present disclosure also provides a vehicle launch system comprising:

a memory having a computer program stored thereon;

According to the vehicle starting system, under the condition that the vehicle is in a plateau working condition and the vehicle has a starting request, the electric quantity state of the power battery of the vehicle is judged, under the condition that the electric quantity state of the power battery is too low, the low-voltage storage battery is started to supply power for a low-voltage load on the vehicle, the engine is controlled to only drive the vehicle, the starting of the vehicle under the condition that the electric quantity of the power battery is too low under the plateau working condition is completed, and the vehicle using experience of a user in a plateau environment is improved.

Fig. 4 is a block diagram illustrating a vehicle launch system 400 according to an exemplary embodiment. The system is applicable to vehicles.

As shown in fig. 4, the vehicle launch system 400 may include one or more of the following components: a processor 401, a memory 402. The vehicle launch system 400 can also include one or more of a multimedia component 403, an input/output (I/O) interface 404, and a communication component 405.

Wherein the processor 401 is configured to control the overall operation of the vehicle launch system 400 to perform all or part of the steps of the vehicle launch method described above. The memory 402 is used to store various types of data to support operation at the vehicle launch system 400, which may include, for example, instructions for any application or method operating on the vehicle launch system 400, as well as application-related data such as engine barometric pressure, brake master cylinder pressure, accelerator pedal opening, switch status of automatic park function, and generator-sent power generation requests, among others.

The Memory 402 may be implemented by any type or combination of volatile or non-volatile Memory devices, such as static random access Memory (Static Random Access Memory, SRAM for short), electrically erasable programmable Read-Only Memory (Electrically Erasable Programmable Read-Only Memory, EEPROM for short), erasable programmable Read-Only Memory (Erasable Programmable Read-Only Memory, EPROM for short), programmable Read-Only Memory (Programmable Read-Only Memory, PROM for short), read-Only Memory (ROM for short), magnetic Memory, flash Memory, magnetic disk, or optical disk.

The multimedia component 403 may include a screen and an audio component. Wherein the screen may be, for example, a touch screen, the audio component being for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may be further stored in the memory 402 or transmitted through the communication component 405. The audio assembly further comprises at least one speaker for outputting audio signals.

The I/O interface 404 provides an interface between the processor 401 and other interface modules, which may be a keyboard, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 405 is used for wired or wireless communication between the vehicle launch system 400 and other devices. Wireless communication, such as Wi-Fi, bluetooth, near field communication (Near Field Communication, NFC for short), 2G, 3G, 4G, NB-IOT, eMTC, or other 5G, etc., or one or a combination of more of them, is not limited herein. The corresponding communication component 405 may thus comprise: wi-Fi module, bluetooth module, NFC module, etc.

In an exemplary embodiment, the vehicle launch system 400 may be implemented by one or more application specific integrated circuits (Application Specific Integrated Circuit, ASIC), digital signal processor (Digital Signal Processor, DSP), digital signal processing device (Digital Signal Processing Device, DSPD), programmable logic device (Programmable Logic Device, PLD), field programmable gate array (Field Programmable Gate Array, FPGA), controller, microcontroller, microprocessor, or other electronic components for performing the vehicle launch method described above.

In another exemplary embodiment, a computer readable storage medium is also provided, comprising program instructions which, when executed by a processor, implement the steps of the vehicle launch method described above. For example, the computer readable storage medium may be the memory 402 including program instructions described above that are executable by the processor 401 of the vehicle launch system 400 to perform the vehicle launch method described above.

In another exemplary embodiment, a computer program product is also provided, which comprises a computer program executable by a programmable apparatus, the computer program having code portions for performing the above-mentioned vehicle launch method when executed by the programmable apparatus.

The utility model also provides a diesel vehicle, this diesel vehicle's driving system is hybrid power system, including foretell vehicle starting system, vehicle starting system on the diesel vehicle is in under the circumstances that the diesel vehicle was in the plateau operating mode and diesel vehicle had the start request, judge the state of charge of vehicle power battery, under the circumstances that power battery's state of charge is too low, launch low-voltage battery and supply power for the low-voltage load on the diesel vehicle, avoid power battery damage, reduce the after-market problem, and control the engine and only drive the vehicle, accomplish the start of diesel vehicle under the circumstances that plateau operating mode and power battery electric quantity are too low, improve user's user experience in the plateau environment.

With respect to the vehicle starting system of the diesel vehicle in the above-described embodiments, the specific manner in which the operation is performed has been described in detail in the embodiments regarding the vehicle starting method, and will not be explained in detail here.

The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure. In addition, the specific features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, the present disclosure does not further describe various possible combinations.

Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.

Claims

1. A method of starting a vehicle, the vehicle including a power cell and a low voltage battery, the method comprising:

acquiring state information of a vehicle;

under the condition that the power battery power is smaller than the power threshold, starting the low-voltage storage battery to supply power to a low-voltage load on the vehicle, and controlling an engine of the vehicle to drive the vehicle to start in a starting stage;

after controlling the engine of the vehicle to drive only the vehicle for launch, the method further includes:

controlling an engine of the vehicle to provide mechanical energy to a generator of the vehicle to enable the generator to generate electricity and controlling the generator to charge the power battery under the condition that the vehicle speed is not zero;

the method further comprises the steps of:

2. The method of claim 1, wherein the status information of the vehicle includes an atmospheric pressure of an environment in which the vehicle is located, positioning information of the vehicle, a pressure of a master cylinder, an accelerator pedal opening, and an on-off state of an automatic parking function;

judging whether the vehicle is in a plateau working condition or not according to the atmospheric pressure of the environment where the vehicle is located or/and the positioning information of the vehicle;

3. The method according to claim 2, wherein the determining whether the vehicle has a start request based on the pressure of the master cylinder, the accelerator pedal opening, and the on-off state of the automatic parking function includes:

4. A method according to any one of claims 1-3, wherein said controlling the engine of the vehicle during the launch phase to drive only the vehicle for launch comprises:

5. A vehicle launch device, the vehicle having a power cell and a low voltage battery, the device comprising:

an acquisition module configured to acquire status information of a vehicle;

a control module configured to enable a low-voltage battery to supply power to a low-voltage load on the vehicle and control an engine of the vehicle to drive the vehicle only to start if the power battery level is less than the power threshold level;

a second control module configured to acquire a vehicle speed of the vehicle, determine whether the vehicle speed is zero, and, in a case where the vehicle speed is not zero, control an engine of the vehicle to provide mechanical energy to a generator of the vehicle to cause the generator to generate electricity, and control the generator to charge the power battery;

the second control module is further configured to obtain a starting time of the vehicle under the condition that the vehicle speed is zero, wherein the starting time of the vehicle comprises a driving time of the engine to drive the vehicle to start;

6. A computer-readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the steps of the vehicle launch method according to any one of claims 1 to 4.

7. A vehicle launch system comprising:

a memory having a computer program stored thereon;

a processor for executing the computer program in the memory to carry out the steps of the vehicle launch method of any one of claims 1-4.

8. A diesel vehicle characterized in that it comprises the vehicle launch system of claim 7.