CN114771440B

CN114771440B - Vehicle starting signal generation method and device applied to storage battery state detection

Info

Publication number: CN114771440B
Application number: CN202210683831.8A
Authority: CN
Inventors: 周振彬; 娄珂; 宾朝林; 秦文礼
Original assignee: Shenzhen Dingjiang Technology Co ltd
Current assignee: Shenzhen Dingjiang Technology Co ltd
Priority date: 2022-06-17
Filing date: 2022-06-17
Publication date: 2022-11-25
Anticipated expiration: 2042-06-17
Also published as: CN114771440A

Abstract

The invention discloses a vehicle starting signal generation method and a vehicle starting signal generation device applied to storage battery state detection, wherein the method comprises the following steps: determining a state corresponding to a currently undetermined voltage signal in the acquired voltage signal sequence; judging whether the generation condition of a vehicle starting signal is met or not according to the state corresponding to the currently undetermined voltage signal; and if so, generating a vehicle starting signal according to the state corresponding to the currently undetermined voltage signal. Therefore, the state of the vehicle storage battery can be intelligently detected through the vehicle starting signal generated in real time, and the storage battery does not need to be regularly detected by related technical personnel, so that the state detection efficiency of the storage battery is favorably improved, the state detection timeliness of the storage battery is favorably improved, the abnormal working problem of the storage battery is timely found, the storage battery is favorably maintained and replaced in time, the occurrence of vehicle starting failure is reduced, and the vehicle can run smoothly.

Description

Vehicle starting signal generation method and device applied to storage battery state detection

Technical Field

The invention relates to the technical field of vehicles, in particular to a vehicle starting signal generation method and device applied to storage battery state detection.

Background

The storage battery is used as a power supply for the early starting of the vehicle, and can provide strong starting current for a starter of the vehicle, so that the starter can realize an energy conversion process for converting electric energy into mechanical energy, an engine of the vehicle is driven by the starter to enter a self-running state, and the starting process of the vehicle is completed, and therefore whether the state of the storage battery is normal or not is very important for the starting of the vehicle.

Currently, the state detection of the storage battery is generally implemented by detecting the operating state of the storage battery periodically (generally, the detection period is 2-3 years) by a technician, and when a problem occurs in the storage battery, the maintenance and replacement of the storage battery are performed. However, practice shows that the conventional storage battery state detection method is difficult to timely find out the abnormal operation problem of the storage battery, so that the situation that the vehicle cannot be started normally is easy to occur when a user travels by self-driving. It is therefore important to provide a method that enables the state of a vehicle battery to be detected in a timely manner.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a method and a device for generating a vehicle starting signal applied to storage battery state detection, which can find abnormal working problems of a storage battery in time, thereby facilitating timely maintenance and replacement of the storage battery, reducing the occurrence of vehicle starting failure and ensuring that a vehicle can run smoothly.

In order to solve the technical problem, a first aspect of the present invention discloses a vehicle start signal generation method applied to battery state detection, the method comprising:

determining a state corresponding to a currently undetermined voltage signal in the acquired voltage signal sequence; the voltage signal sequence comprises at least one voltage signal, all the voltage signals comprise the currently undetermined voltage signal, and all the voltage signals are arranged according to the sequence of the acquisition time;

judging whether the generation condition of a vehicle starting signal is met or not according to the state corresponding to the currently undetermined voltage signal;

and when the condition for generating the vehicle starting signal is judged to be met, generating the vehicle starting signal according to the state corresponding to the currently undetermined voltage signal.

As an optional implementation manner, in the first aspect of the present invention, the determining a state corresponding to a currently pending voltage signal in the collected voltage signal sequence includes:

judging whether a currently undetermined voltage signal in the acquired voltage signal sequence is a first voltage signal; the first voltage signal is a voltage signal which is arranged in the voltage signal sequence in a first mode;

when the currently pending voltage signal is judged to be the first voltage signal, determining that the state corresponding to the currently pending voltage signal is a first state;

when the currently undetermined voltage signal is judged not to be the first voltage signal, determining a second voltage signal matched with the currently undetermined voltage signal from all the voltage signals, and calculating a voltage vibration amplitude corresponding to the second voltage signal; the second voltage signal is a voltage signal adjacent to the currently pending voltage signal by a previous bit and the state corresponding to the second voltage signal is determined based on the state corresponding to the voltage signal adjacent to the second voltage signal by the previous bit;

determining a state corresponding to the currently undetermined voltage signal according to the voltage vibration amplitude corresponding to the second voltage signal and the determined state corresponding to the second voltage signal;

wherein, the voltage vibration amplitude corresponding to the second voltage signal is:

dva is the voltage vibration amplitude, x, corresponding to the second voltage signal _k For the second voltage signal, { x _1, x _2, … _, x _k And W is a preset no-load stable voltage sequence length threshold value.

As an optional implementation manner, in the first aspect of the present invention, the determining, according to the voltage vibration amplitude corresponding to the second voltage signal and the determined state corresponding to the second voltage signal, the state corresponding to the currently pending voltage signal includes:

when the determined state corresponding to the second voltage signal is the first state, determining a first comparison condition between the voltage vibration amplitude corresponding to the second voltage signal and a preset first voltage vibration threshold; the first voltage vibration threshold is the maximum voltage vibration threshold under the state of no-load voltage of the static vehicle;

determining a current accumulation counting parameter corresponding to the second voltage signal based on the first comparison condition, and determining a second comparison condition of the current accumulation counting parameter corresponding to the second voltage signal and a preset initial no-load voltage estimated calculation length;

determining a state corresponding to the currently undetermined voltage signal based on the second comparison condition;

wherein, the current accumulation count parameter corresponding to the second voltage signal is:

v ₀ is the first voltage vibration threshold, T _i-1 For the last accumulated count parameter, T, corresponding to the second voltage signal _i The current accumulation counting parameter corresponding to the second voltage signal is obtained;

the corresponding state of the currently undetermined voltage signal is as follows:

S _k+1 is the state corresponding to the currently undetermined voltage signal, w ₀ Pre-estimating a calculated length, S, for said initial no-load voltage ₀ Is in the first state, S ₁ In the second state.

As an alternative implementation, in the first aspect of the present invention, the method further includes:

when the determined state corresponding to the second voltage signal is the second state, determining a third comparison condition between the voltage vibration amplitude corresponding to the second voltage signal and a preset second voltage vibration threshold; the second voltage vibration threshold is the maximum voltage vibration threshold under the condition of starting the vehicle no-load voltage;

determining a current accumulation count parameter corresponding to the second voltage signal and a current signal characteristic parameter corresponding to the second voltage signal based on the third comparison condition;

determining a fourth comparison condition of the voltage vibration amplitude corresponding to the second voltage signal and a preset instantaneous voltage threshold, and determining a fifth comparison condition of a current signal characteristic parameter corresponding to the second voltage signal and a preset voltage increment median value required for starting a vehicle; the instantaneous voltage threshold is the minimum instantaneous voltage threshold required for starting the vehicle;

determining a state corresponding to the currently pending voltage signal based on the fourth comparison condition and the fifth comparison condition;

v ₁ vibrating for the second voltage threshold;

the current signal characteristic parameters corresponding to the second voltage signal are as follows:

avgT _i is the current signal characteristic parameter, avgT, corresponding to the second voltage signal _i-1 The signal characteristic parameter is a last signal characteristic parameter corresponding to the second voltage signal;

v _p is the instantaneous voltage threshold value, v _dp Is the median value of the voltage increment required for starting the vehicle, S ₂ Is in the third state.

when the determined state corresponding to the second voltage signal is the third state, determining a sixth comparison condition between the voltage vibration amplitude corresponding to the second voltage signal and a preset third voltage vibration threshold; the third voltage vibration threshold is a voltage vibration stability threshold in a vehicle starting state;

determining a current accumulation count parameter corresponding to the second voltage signal based on the sixth comparison condition;

determining a third voltage signal matched with the second voltage signal, and performing a filtering operation on the second voltage signal according to one or more of the filtered third voltage signal, a preset baseline correction parameter, a preset white noise compensation coefficient and a preset white noise parameter to obtain a filtered second voltage signal; the third voltage signal is a voltage signal adjacent to the second voltage signal and previous to the second voltage signal;

determining a fourth voltage signal matched with the second voltage signal, and determining a target swing parameter corresponding to the second voltage signal based on one or more of the filtered second voltage signal, the filtered third voltage signal, the filtered fourth voltage signal and a current accumulation count parameter corresponding to the second voltage signal; the fourth voltage signal is a voltage signal adjacent to the second voltage signal by the first two bits;

determining a state corresponding to the currently undetermined voltage signal based on one or more of a preset maximum voltage length threshold value required for starting the vehicle, a maximum voltage vibration stability length threshold value, a voltage swing threshold value, a voltage amplitude threshold value, a target swing parameter corresponding to the second voltage signal and a currently accumulated count parameter corresponding to the second voltage signal; the maximum voltage vibration stability length threshold is the maximum voltage vibration stability length threshold in the vehicle starting state.

when the determined state corresponding to the second voltage signal is a fourth state, determining that the state corresponding to the currently undetermined voltage signal is the second state;

the step of judging whether the generation condition of the vehicle starting signal is met according to the state corresponding to the currently undetermined voltage signal comprises the following steps:

judging whether the state corresponding to the currently undetermined voltage signal is the second state or not and whether the state corresponding to the second voltage signal is the fourth state or not;

when the judgment result is yes, determining that the generation condition of the vehicle starting signal is met;

and when the judgment result is negative, determining that the generation condition of the vehicle starting signal is not met.

As an optional implementation manner, in the first aspect of the present invention, the generating the vehicle start signal according to the state corresponding to the currently pending voltage signal includes:

determining the currently pending voltage signal as a first target voltage signal; the first target voltage signal represents a voltage signal for which a corresponding state has been determined in the sequence of voltage signals;

screening all second target voltage signals of which the states are the third states from all the first target voltage signals according to the states corresponding to all the first target voltage signals;

determining a target voltage signal sequence according to all the second target voltage signals; all the second target voltage signals in the target voltage signal sequence are arranged according to the sequence of the acquisition time;

determining a swinging parameter sequence according to the determined target swinging parameters corresponding to each second target voltage signal;

calculating the target voltage signal sequence and the swing parameter sequence according to a preset calculation mode to obtain a target calculation result which is used as the vehicle starting signal;

and after determining the state corresponding to the currently undetermined voltage signal in the acquired voltage signal sequence, the method further comprises:

and updating the voltage signal adjacent to the current undetermined voltage signal in the voltage signals to be the current undetermined voltage signal, triggering and executing the state corresponding to the current undetermined voltage signal in the acquired voltage signal sequence, and judging whether the operation of generating conditions of the vehicle starting signal is met or not according to the state corresponding to the current undetermined voltage signal.

As an optional implementation manner, in the first aspect of the present invention, the current accumulation count parameter corresponding to the second voltage signal is:

v ₂ vibrating for the third voltage threshold;

the filtered second voltage signal is:

y _k is the filtered second voltage signal, y _k-1 The filtered third voltage signal is obtained by A representing the baseline correction parameter, B representing the white noise compensation coefficient, u _k Is the white noise parameter, wherein u _k =y _k-1 -x _k-1 ；

The target swing parameters corresponding to the second voltage signal are as follows:

α _i is a target swing parameter, y, corresponding to the second voltage signal _k-2 Is the filtered fourth voltage signal;

w _max a voltage length threshold, w, required for said maximum start of the vehicle ₁ Is the maximum voltage vibration stability length threshold, v ₃ Is the voltage amplitude threshold, n is the voltage swing threshold, S ₃ Is the fourth state.

A second aspect of the present invention discloses a vehicle start signal generating apparatus applied to battery state detection, the apparatus including:

the determining module is used for determining the state corresponding to the currently undetermined voltage signal in the acquired voltage signal sequence; the voltage signal sequence comprises at least one voltage signal, all the voltage signals comprise the currently undetermined voltage signal, and all the voltage signals are arranged according to the sequence of the acquisition time;

the judging module is used for judging whether the generating condition of the vehicle starting signal is met or not according to the state corresponding to the currently undetermined voltage signal;

and the signal generation module is used for generating the vehicle starting signal according to the state corresponding to the currently undetermined voltage signal when the judgment module judges that the generation condition of the vehicle starting signal is met.

As an optional implementation manner, in the second aspect of the present invention, the determining module includes:

the judging submodule is used for judging whether the current voltage signal to be determined in the acquired voltage signal sequence is a first voltage signal; the first voltage signal is a voltage signal which is arranged in the voltage signal sequence in a first mode;

the first determining submodule is used for determining that the state corresponding to the currently undetermined voltage signal is a first state when the judging submodule judges that the currently undetermined voltage signal is the first voltage signal; when the judging submodule judges that the currently undetermined voltage signal is not the first voltage signal, determining a second voltage signal matched with the currently undetermined voltage signal from all the voltage signals;

the calculation submodule is used for calculating the voltage vibration amplitude corresponding to the second voltage signal; the second voltage signal is a voltage signal adjacent to the current voltage signal to be determined and the state corresponding to the second voltage signal is determined based on the state corresponding to the voltage signal adjacent to the current voltage signal;

the second determining submodule is used for determining a state corresponding to the currently undetermined voltage signal according to the voltage vibration amplitude corresponding to the second voltage signal and the determined state corresponding to the second voltage signal;

dva is the voltage vibration amplitude, x, corresponding to the second voltage signal _k For the second voltage signal, { x } _1, x _2, … _, x _k And W is a preset no-load stable voltage sequence length threshold value.

As an optional implementation manner, in the second aspect of the present invention, the second determining sub-module includes:

the determining unit is used for determining a first comparison condition between the voltage vibration amplitude corresponding to the second voltage signal and a preset first voltage vibration threshold value when the determined state corresponding to the second voltage signal is the first state; the first voltage vibration threshold is the maximum voltage vibration threshold under the state of no-load voltage of the static vehicle; determining a current accumulation counting parameter corresponding to the second voltage signal based on the first comparison condition, and determining a second comparison condition of the current accumulation counting parameter corresponding to the second voltage signal and a preset initial no-load voltage estimated calculation length; determining a state corresponding to the currently undetermined voltage signal based on the second comparison condition;

v ₀ is the first voltage vibration threshold, T _i-1 For the last accumulated count parameter, T, corresponding to said second voltage signal _i The current accumulation counting parameter corresponding to the second voltage signal is obtained;

As an optional implementation manner, in the second aspect of the present invention, the determining unit is further configured to:

when the determined state corresponding to the second voltage signal is the second state, determining a third comparison condition between the voltage vibration amplitude corresponding to the second voltage signal and a preset second voltage vibration threshold; the second voltage vibration threshold is the maximum voltage vibration threshold under the condition of starting the vehicle no-load voltage; determining a current accumulation count parameter corresponding to the second voltage signal and a current signal characteristic parameter corresponding to the second voltage signal based on the third comparison condition; determining a fourth comparison condition of the voltage vibration amplitude corresponding to the second voltage signal and a preset instantaneous voltage threshold, and determining a fifth comparison condition of a current signal characteristic parameter corresponding to the second voltage signal and a preset voltage increment median value required for starting a vehicle; the instantaneous voltage threshold is the minimum instantaneous voltage threshold required for starting the vehicle; determining a state corresponding to the currently pending voltage signal based on the fourth comparison condition and the fifth comparison condition;

v ₁ is the second voltage vibration threshold;

when the determined state corresponding to the second voltage signal is the third state, determining a sixth comparison condition between the voltage vibration amplitude corresponding to the second voltage signal and a preset third voltage vibration threshold; the third voltage vibration threshold is a voltage vibration stability threshold in a vehicle starting state; determining a current accumulation count parameter corresponding to the second voltage signal based on the sixth comparison condition; determining a third voltage signal that matches the second voltage signal;

and the second determining sub-module further includes:

the filtering unit is used for performing filtering operation on the second voltage signal according to one or more of the filtered third voltage signal, a preset baseline correction parameter, a preset white noise compensation coefficient and a preset white noise parameter to obtain a filtered second voltage signal; the third voltage signal is a voltage signal adjacent to the second voltage signal and previous to the second voltage signal;

the determining unit is further configured to determine a fourth voltage signal matched with the second voltage signal, and determine a target swing parameter corresponding to the second voltage signal based on one or more of the filtered second voltage signal, the filtered third voltage signal, the filtered fourth voltage signal, and a current accumulation count parameter corresponding to the second voltage signal; the fourth voltage signal is a voltage signal adjacent to the second voltage signal by the first two bits; determining a state corresponding to the currently undetermined voltage signal based on one or more of a preset maximum voltage length threshold value required for starting the vehicle, a maximum voltage vibration stability length threshold value, a voltage swing threshold value, a voltage amplitude threshold value, a target swing parameter corresponding to the second voltage signal and a currently accumulated count parameter corresponding to the second voltage signal; the maximum voltage vibration stability length threshold is the maximum voltage vibration stability length threshold in the vehicle starting state.

and the mode that the judging module judges whether the generating condition of the vehicle starting signal is met according to the state corresponding to the currently undetermined voltage signal is specifically as follows:

As an optional implementation manner, in the second aspect of the present invention, a manner of generating the vehicle start signal by the signal generating module according to a state corresponding to the currently pending voltage signal is specifically:

and, the apparatus further comprises:

and the updating module is used for updating the voltage signal adjacent to the currently undetermined voltage signal in the last voltage signal in all the voltage signals to the currently undetermined voltage signal after the determining module determines the state corresponding to the currently undetermined voltage signal in the acquired voltage signal sequence, triggering the determining module to execute the operation of determining the state corresponding to the currently undetermined voltage signal in the acquired voltage signal sequence, and triggering the judging module to execute the operation of judging whether the generation condition of the vehicle starting signal is met or not according to the state corresponding to the currently undetermined voltage signal.

As an optional implementation manner, in the second aspect of the present invention, the current accumulation count parameter corresponding to the second voltage signal is:

v ₂ vibrating for the third voltage threshold;

the filtered second voltage signal is:

y _k is the filtered second voltage signal, y _k-1 Is the filtered third voltage signal, A is the baseline correction parameter, B is the white noise compensation coefficient, u _k Is the white noise parameter, wherein u _k =y _k-1 -x _k-1 ；

w _max is the maximumThreshold value of voltage length, w, required for starting the vehicle ₁ For said maximum voltage vibration stability length threshold, v ₃ Is the voltage amplitude threshold, n is the voltage swing threshold, S ₃ Is the fourth state.

A third aspect of the present invention discloses another vehicle start signal generating apparatus applied to battery state detection, the apparatus comprising:

a memory storing executable program code;

a processor coupled with the memory;

the processor calls the executable program codes stored in the memory to execute the vehicle starting signal generating method applied to the storage battery state detection disclosed by the first aspect of the invention.

A fourth aspect of the present invention discloses a computer storage medium storing computer instructions for executing the vehicle start signal generation method applied to battery state detection disclosed in the first aspect of the present invention when the computer instructions are invoked.

Compared with the prior art, the embodiment of the invention has the following beneficial effects:

in the embodiment of the invention, the state corresponding to the currently undetermined voltage signal in the acquired voltage signal sequence is determined; judging whether the generation condition of a vehicle starting signal is met or not according to the state corresponding to the currently undetermined voltage signal; if so, generating a vehicle starting signal according to the state corresponding to the currently undetermined voltage signal. Therefore, the state of the vehicle storage battery can be automatically detected through the vehicle starting signal generated in real time, the storage battery state detection system does not need to perform regular state detection on the storage battery by related technicians, and the intellectualization of the storage battery state detection work of the storage battery detection system is embodied, so that the state detection efficiency of the storage battery is favorably improved, the state detection timeliness of the storage battery is favorably improved, the abnormal working problem of the storage battery is timely found, the storage battery is favorably maintained and replaced in time, the occurrence of vehicle starting failure is reduced, and the vehicle can be smoothly started and run.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic flow chart illustrating a state determination of a currently pending voltage signal according to an embodiment of the present invention

FIG. 2 is a schematic flow chart of a vehicle activation signal generation method applied to battery state detection according to an embodiment of the present invention;

FIG. 3 is a schematic flow chart illustrating another method for generating a vehicle start signal for battery state detection according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a vehicle activation signal generation device applied to battery state detection according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of another vehicle start signal generating device applied to battery state detection according to the embodiment of the present invention;

fig. 6 is a schematic structural diagram of another vehicle starting signal generating device applied to battery state detection according to the embodiment of the present invention.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The terms "first," "second," and the like in the description and claims of the present invention and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, apparatus, article, or article that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or article.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein may be combined with other embodiments.

The invention discloses a vehicle starting signal generation method and device applied to storage battery state detection, which can find abnormal working problems of a storage battery in time, thereby being beneficial to timely maintenance and replacement processing of the storage battery, reducing the occurrence of vehicle starting failure and enabling a vehicle to smoothly run. The following are detailed below.

Example one

Referring to fig. 2, fig. 2 is a schematic flow chart illustrating a method for generating a vehicle start signal for battery state detection according to an embodiment of the present invention. The vehicle start signal generating method applied to battery state detection described in fig. 2 may be applied to battery state detection of a new energy vehicle (such as a fuel cell electric vehicle, etc.), and may also be applied to battery state detection of a conventional gasoline vehicle and a diesel vehicle, and the embodiment of the present invention is not limited thereto. Optionally, the method may be implemented by a storage battery detection system, the storage battery detection system may be integrated in the storage battery detection device, and may also be a local server or a cloud server for managing a storage battery state detection process, and the embodiment of the present invention is not limited. As shown in fig. 2, the vehicle start signal generation method applied to the battery state detection may include the operations of:

101. and determining the state corresponding to the currently undetermined voltage signal in the acquired voltage signal sequence.

In the embodiment of the present invention, specifically, the voltage signal sequence includes at least one voltage signal, all the voltage signals include the currently pending voltage signal, and all the voltage signals are arranged according to the sequence of the acquisition time, that is, the voltage signal sequence may be expressed as x = { x = _1, x _2, … _, x _k+1 ,…, x _m In which x _k+1 For the currently pending voltage signal, and x _m The voltage signals ordered as m in the voltage signal sequence (m is a natural number) are obtained. Optionally, the voltage signal sequence may be a limited voltage signal sequence (e.g., a historically stored voltage signal sequence) or an unlimited voltage signal sequence (e.g., a voltage signal collected in real time is always added to the voltage signal sequence).

102. And judging whether the generation condition of the vehicle starting signal is met or not according to the state corresponding to the currently undetermined voltage signal.

In the embodiment of the present invention, specifically, in the voltage signal sequence x = { x = { [ x ] _1, x _2, … _, x _k+1 ,…, x _m In the method, the state determination process corresponding to each voltage signal can be understood as an iterative determination process, namely, for the currently pending voltage signal x of which the state needs to be determined _k+1 In other words, the currently pending voltage signal x _k+1 The corresponding state needs to be determined by the voltage signal x of the corresponding state, the previous bit adjacent to the corresponding state _k Is determined, i.e. arranged at x _k+1 The states corresponding to all other previous voltage signals are determined to be good states in the same iteration form and are arranged at x _k+1 The corresponding states of all other voltage signals are to be determined. For example, a currently pending voltage signal x is determined _k+1 The corresponding state is based on the voltage signalNumber x _k The corresponding state is determined, and the voltage signal x _k The corresponding state is based on the voltage signal x _k-1 The corresponding state is predetermined, and so on.

103. And when the condition for generating the vehicle starting signal is judged to be met, generating the vehicle starting signal according to the state corresponding to the currently undetermined voltage signal.

In the embodiment of the present invention, further, after it is determined that the generation condition of the vehicle start signal is not satisfied, the voltage signal next to the currently undetermined voltage signal may be updated to the currently undetermined voltage signal, and the operation of determining whether the generation condition of the vehicle start signal is satisfied according to the state corresponding to the currently undetermined voltage signal in the voltage signal sequence acquired in step 101 and the state corresponding to the currently undetermined voltage signal in step 102 is continuously performed. After the condition that the generation condition of the vehicle starting signal is met is judged, the voltage signal adjacent to the currently undetermined voltage signal and the next bit can be continuously updated to the currently undetermined voltage signal, and the subsequent generation and judgment steps of the vehicle starting signal are executed.

Therefore, the embodiment of the invention can automatically detect the state of the vehicle storage battery through the vehicle starting signal generated in real time, does not need to perform regular state detection on the storage battery by related technicians, embodies the intelligence of the storage battery state detection work of the storage battery detection system, is beneficial to improving the state detection efficiency of the storage battery, is further beneficial to improving the state detection timeliness of the storage battery and finding the abnormal working problem of the storage battery in time, thereby being beneficial to performing timely maintenance and replacement processing on the storage battery, reducing the occurrence of vehicle starting failure and enabling the vehicle to be started and run smoothly.

In an optional embodiment, after determining the state corresponding to the currently pending voltage signal in the acquired voltage signal sequence in step 101, the method may further include:

and updating the next voltage signal adjacent to the currently undetermined voltage signal in all the voltage signals into the currently undetermined voltage signal, triggering and executing the operation of determining the state corresponding to the currently undetermined voltage signal in the collected voltage signal sequence, and judging whether the operation meets the generation condition of the vehicle starting signal according to the state corresponding to the currently undetermined voltage signal.

In this alternative embodiment, specifically, it may be understood that whether the voltage signals satisfy the condition for generating the vehicle start signal is determined for all the voltage signals in the voltage signal sequence one by one according to the sequence of the acquisition time. Optionally, if the voltage signal sequence is a limited voltage signal sequence, the determining operation of the vehicle start signal generating condition may be cut off when determining the state corresponding to the last voltage signal; if the voltage signal sequence is an infinite voltage signal sequence, the determination operation of the vehicle start signal generation condition can be infinitely cycled and determined in real time.

Therefore, the optional embodiment can perform real-time state judgment on each voltage signal in the voltage signal sequence and can perform real-time judgment on the generation of the vehicle starting signal, the calculation result does not need to be manually participated, and the intelligence of the generation of the vehicle starting signal is embodied, so that the generation efficiency of the vehicle starting signal can be improved, and the timeliness of the generation of the vehicle starting signal can be further improved, thereby providing a convenient vehicle starting signal for a user in time, and enabling the user to detect the state of the storage battery in time through the vehicle starting signal.

Example two

Referring to fig. 3, fig. 3 is a schematic flow chart of a vehicle start signal generation method applied to battery state detection according to an embodiment of the present invention. The vehicle start signal generating method applied to battery state detection described in fig. 3 may be applied to battery state detection of a new energy vehicle (such as a fuel cell electric vehicle, etc.), and may also be applied to battery state detection of a conventional gasoline vehicle and a diesel vehicle, which is not limited in the embodiments of the present invention. Optionally, the method may be implemented by a storage battery detection system, and the storage battery detection system may be integrated in the storage battery detection device, and may also be a local server or a cloud server for managing a storage battery state detection process, and the embodiment of the present invention is not limited. As shown in fig. 3, the vehicle activation signal generation method applied to the battery state detection may include the operations of:

201. judging whether a currently undetermined voltage signal in the acquired voltage signal sequence is a first voltage signal; when the judgment result in the step 201 is yes, triggering to execute the step 202; when the judgment result in the step 201 is negative, the step 203 is triggered to be executed.

In an embodiment of the present invention, the first voltage signal is a voltage signal arranged first in a voltage signal sequence. Specifically, when it is determined that the currently undetermined voltage signal in the collected voltage signal sequence is the first voltage signal, it may be understood that the currently undetermined voltage signal is an initialized voltage signal, that is, it may be understood that the state determination of all the voltage signals in the voltage signal sequence is started.

202. And determining that the state corresponding to the currently undetermined voltage signal is a first state.

In the embodiment of the present invention, specifically, the first state may be understood as an initialization state.

203. And determining a second voltage signal matched with the currently undetermined voltage signal from all the voltage signals, and calculating the voltage vibration amplitude corresponding to the second voltage signal.

In the embodiment of the present invention, the second voltage signal is a voltage signal adjacent to the currently pending voltage signal by one bit, and the state corresponding to the second voltage signal is determined based on the state corresponding to the voltage signal adjacent to the currently pending voltage signal by one bit, that is, for the currently pending voltage signal x _k+1 In other words, the second voltage signal x of the previous bit adjacent thereto _k The corresponding state is based on the second voltage signal x _k Voltage signal x of the adjacent previous bit _k-1 The corresponding state is predetermined.

Specifically, the voltage vibration amplitude corresponding to the second voltage signal is:

wherein dva is the voltage vibration amplitude, x, corresponding to the second voltage signal _k For the second voltage signal, { x _1, x _2, … _, x _k And W is a preset no-load stable voltage sequence length threshold value.

204. And determining the state corresponding to the currently undetermined voltage signal according to the voltage vibration amplitude corresponding to the second voltage signal and the determined state corresponding to the second voltage signal.

In the embodiment of the present invention, in the state determination process corresponding to the currently pending voltage signal, it is determined that the state corresponding to the second voltage signal is related to whether the state is the first state, the second state, the third state or the fourth state. For example, a specific state determination process of the currently pending voltage signal may be shown in fig. 1: that is, if the determined state corresponding to the second voltage signal is S ₀ (first state), the state corresponding to the currently pending voltage signal may be S ₀ May also be S ₁ (second state), the specific state determination needs to be performed based on the comparison condition of the voltage vibration amplitude corresponding to the second voltage signal and the maximum voltage vibration threshold value in the preset no-load voltage state of the stationary vehicle; if the determined state corresponding to the second voltage signal is S ₁ If so, the state corresponding to the currently pending voltage signal may be S ₁ May also be S ₂ (third state), the specific state determination needs to be performed based on the comparison condition between the voltage vibration amplitude corresponding to the second voltage signal and the maximum voltage vibration threshold value in the no-load voltage state of the preset starting vehicle; if the determined state corresponding to the second voltage signal is S ₂ If so, the state corresponding to the currently pending voltage signal may be S ₁ May also be S ₂ And may also be S ₃ (fourth State), concrete State determinationThe voltage vibration amplitude corresponding to the second voltage signal is compared with a preset voltage vibration stability threshold value in a vehicle starting state; if the determined state corresponding to the second voltage signal is S ₁ If so, the state corresponding to the current undetermined voltage signal is S ₁ 。

205. And judging whether the generation condition of the vehicle starting signal is met or not according to the state corresponding to the currently undetermined voltage signal.

206. And when the condition for generating the vehicle starting signal is judged to be met, generating the vehicle starting signal according to the state corresponding to the currently undetermined voltage signal.

In the embodiment of the present invention, for other descriptions of step 205 and step 206, please refer to the detailed description of step 102 and step 103 in the first embodiment, and the embodiment of the present invention is not described again.

Therefore, the method and the device can judge the state corresponding to the currently undetermined voltage signal according to the basis and in a targeted manner, can improve the reliability and accuracy of the determined state corresponding to the currently undetermined voltage signal, further improve the reliability and accuracy of the generated vehicle starting signal, and further improve the detection accuracy of the state of the storage battery.

In an optional embodiment, the determining, according to the voltage vibration amplitude corresponding to the second voltage signal and the determined state corresponding to the second voltage signal in step 204, the state corresponding to the currently pending voltage signal includes:

when the determined state corresponding to the second voltage signal is the first state, determining a first comparison condition between the voltage vibration amplitude corresponding to the second voltage signal and a preset first voltage vibration threshold;

and determining the state corresponding to the currently pending voltage signal based on the second comparison condition.

In this alternative embodiment, specifically, the first voltage vibration threshold is a maximum voltage vibration threshold in a state of no load voltage of the stationary vehicle.

in particular, v ₀ Is a first voltage vibration threshold, T _i-1 A last accumulated count parameter, T, corresponding to the second voltage signal _i For the current accumulation count parameter corresponding to the second voltage signal, i.e. for the current accumulation count parameter T corresponding to the second voltage signal _i The determination process of (a) is an iterative process, that is, the current accumulation count parameter corresponding to each pair of second voltage signals is calculated, and the current accumulation count parameter corresponding to a third voltage signal adjacent to the second voltage signal in a previous bit (i.e., a last accumulation count parameter corresponding to the second voltage signal) is required to be used. Note that initialized T ₀ Is 0.

And the corresponding state of the currently undetermined voltage signal is as follows:

specifically, S _k+1 For the state corresponding to the currently pending voltage signal, w ₀ Calculating the length for the initial no-load voltage estimate, S ₀ Is in a first state, S ₁ Is in the second state, i.e. if T _i ≤w ₀ If the voltage signal is detected, the state corresponding to the currently undetermined voltage signal is a first state, and if the voltage signal is T, the state corresponding to the currently undetermined voltage signal is a first state _i > w ₀ And if so, the state corresponding to the currently undetermined voltage signal is the second state.

Therefore, the state corresponding to the currently undetermined voltage signal can be determined according to the voltage vibration amplitude corresponding to the second voltage signal and the state corresponding to the predetermined second voltage signal, the intellectualization of the state determination mode of the currently undetermined voltage signal by the storage battery detection system is embodied, and the reliability and the accuracy of the state determination result of the obtained currently undetermined voltage signal are improved.

In another optional embodiment, the method may further comprise:

when the determined state corresponding to the second voltage signal is the second state, determining a third comparison condition between the voltage vibration amplitude corresponding to the second voltage signal and a preset second voltage vibration threshold;

determining a fourth comparison condition of the voltage vibration amplitude corresponding to the second voltage signal and a preset instantaneous voltage threshold, and determining a fifth comparison condition of a current signal characteristic parameter corresponding to the second voltage signal and a preset voltage increment median value required for starting the vehicle;

and determining the state corresponding to the currently pending voltage signal based on the fourth comparison condition and the fifth comparison condition.

In this alternative embodiment, specifically, the second voltage vibration threshold is a maximum voltage vibration threshold at the idle voltage state of the vehicle to be started, and the instantaneous voltage threshold is a minimum instantaneous voltage threshold required for starting the vehicle.

in particular, v ₁ Is a second voltage oscillation threshold.

And the current signal characteristic parameters corresponding to the second voltage signal are as follows:

in particular toavgT of _i Is the current signal characteristic parameter, avgT, corresponding to the second voltage signal _i-1 The signal characteristic parameter is the last signal characteristic parameter corresponding to the second voltage signal. Similarly, i.e. the current signal characteristic parameter avgT corresponding to the second voltage signal _i The determination process of (a) is an iterative process, that is, the current signal characteristic parameter corresponding to each pair of second voltage signals is calculated, and the current signal characteristic parameter corresponding to a third voltage signal adjacent to the second voltage signal and preceding (i.e., a previous signal characteristic parameter corresponding to the second voltage signal) is required to be used. Note that initialized avgT ₀ Is 0.

in particular, v _p Is a transient voltage threshold, v _dp Median value of voltage increase required for starting the vehicle, S ₂ In the third state, i.e. if dva>v _p And lx _k -avgT _i l>v _dp If the current undetermined voltage signal is not dva, the state corresponding to the current undetermined voltage signal is a third state>v _p And lx _k -avgT _i l>v _dp And if so, the state corresponding to the currently undetermined voltage signal is the second state.

Therefore, the state corresponding to the currently undetermined voltage signal can be determined according to the voltage vibration amplitude corresponding to the second voltage signal and the state corresponding to the predetermined second voltage signal, the intellectualization of the state determination mode of the currently undetermined voltage signal by the storage battery detection system is further embodied, and the reliability and the accuracy of the state determination result of the obtained currently undetermined voltage signal are further improved.

In yet another optional embodiment, the method may further comprise:

when the determined state corresponding to the second voltage signal is a third state, determining a sixth comparison condition between the voltage vibration amplitude corresponding to the second voltage signal and a preset third voltage vibration threshold;

determining a current accumulation count parameter corresponding to the second voltage signal based on a sixth comparison condition;

determining a third voltage signal matched with the second voltage signal, and performing filtering operation on the second voltage signal according to one or more of the filtered third voltage signal, a preset baseline correction parameter, a preset white noise compensation coefficient and a preset white noise parameter to obtain a filtered second voltage signal;

determining a fourth voltage signal matched with the second voltage signal, and determining a target swing parameter corresponding to the second voltage signal based on one or more of the filtered second voltage signal, the filtered third voltage signal, the filtered fourth voltage signal and a current accumulation count parameter corresponding to the second voltage signal;

and determining the state corresponding to the currently undetermined voltage signal based on one or more of a preset maximum voltage length threshold value required for starting the vehicle, a maximum voltage vibration stability length threshold value, a voltage swing threshold value, a voltage amplitude threshold value, a target swing parameter corresponding to the second voltage signal and a currently accumulated counting parameter corresponding to the second voltage signal.

In this optional embodiment, specifically, the third voltage vibration threshold is a voltage vibration stability threshold in a vehicle starting state, the third voltage signal is a voltage signal adjacent to the second voltage signal by a previous bit, the fourth voltage signal is a voltage signal adjacent to the second voltage signal by a previous two bits, and the maximum voltage vibration stability length threshold is a maximum voltage vibration stability length threshold in the vehicle starting state.

in particular, v ₂ Is a third voltage oscillation threshold.

And the filtered second voltage signal is:

in particular, y _k Is the filtered second voltage signal, y _k-1 A filtered third voltage signal, A is a baseline correction parameter, B is a white noise compensation coefficient, u _k Is a white noise parameter, where A is usually set to 1, but if the voltage signal is in a proportional diffusion tendency, A is set to a proportionality coefficient, and u _k =y _k-1 -x _k-1 。

And the target swing parameter corresponding to the second voltage signal is:

in particular, alpha _i Is a target swing parameter, y, corresponding to the second voltage signal _k-2 Is the filtered fourth voltage signal.

in particular, w _max Voltage length threshold, w, required for maximum vehicle start ₁ A maximum voltage vibration stability length threshold, v ₃ Is a voltage amplitude threshold, n is a voltage swing threshold, S ₃ Is in the fourth state, i.e. if T _i > w _max If so, the state corresponding to the currently undetermined voltage signal is a second state; if α is _i-1 >0 and alpha _i <0 and (alpha) _i-1 + α _i ) > v ₃ And i is>n and T _i > w ₁ If so, the state corresponding to the currently undetermined voltage signal is a fourth state; if the two judgment conditions are not met, the state corresponding to the currently pending voltage signal is a third state.

Therefore, the optional embodiment can also determine the state corresponding to the currently undetermined voltage signal through the voltage vibration amplitude corresponding to the second voltage signal and the predetermined state corresponding to the second voltage signal, so that the intellectualization of the state determination mode of the currently undetermined voltage signal by the storage battery detection system is improved, the reliability and the accuracy of the state determination result of the obtained currently undetermined voltage signal are improved, and the subsequent accurate determination of the generation of the vehicle starting signal is facilitated.

In yet another optional embodiment, the method may further comprise:

and when the determined state corresponding to the second voltage signal is the fourth state, determining that the state corresponding to the currently undetermined voltage signal is the second state.

Further, in this optional embodiment, the step 205 of determining whether the generation condition of the vehicle start signal is satisfied according to the state corresponding to the currently pending voltage signal includes:

judging whether the state corresponding to the currently undetermined voltage signal is a second state or not and whether the state corresponding to the second voltage signal is a fourth state or not;

In this optional embodiment, optionally, after it is determined that the generation condition of the vehicle starting signal is not satisfied, the voltage signal next to the currently undetermined voltage signal may be updated to the currently undetermined voltage signal, and the operation of determining the state corresponding to the currently undetermined voltage signal in the collected voltage signal sequence and determining whether the generation condition of the vehicle starting signal is satisfied according to the state corresponding to the currently undetermined voltage signal is continuously performed.

Therefore, the optional embodiment can accurately judge the generation work of the vehicle starting signal, embodies the intelligence of the storage battery detection system to the generation work of the vehicle starting signal, is favorable for a user to acquire convenient storage battery state information through the generated vehicle starting signal, and can timely maintain the storage battery and reduce the abnormal working condition of the storage battery.

In another optional embodiment, the generating a vehicle start signal according to the state corresponding to the currently pending voltage signal in step 206 includes:

determining a currently pending voltage signal as a first target voltage signal;

screening all second target voltage signals with the third state from all the first target voltage signals according to the states corresponding to all the first target voltage signals;

determining a target voltage signal sequence according to all the second target voltage signals;

and calculating the target voltage signal sequence and the swing parameter sequence according to a preset calculation mode to obtain a target calculation result as a vehicle starting signal.

In this alternative embodiment, the first target voltage signals represent voltage signals for which a corresponding state has been determined in the voltage signal sequence, i.e. all first target voltage signals include the currently pending voltage signal and all voltage signals arranged before this currently pending voltage signal. Similarly, all the second target voltage signals in the target voltage signal sequence are arranged according to the sequence of the acquisition time. Specifically, according to a preset calculation manner, the calculation of the target voltage signal sequence and the sway parameter sequence may be understood as calculating common statistics of the vehicle starting signal, such as a maximum value, a minimum value, a median value, a mean value, a vibration momentum, and the like.

Further, after a vehicle starting signal is generated according to the state corresponding to the currently undetermined voltage signal, one or more of the vehicle starting signal, the target voltage signal sequence and the swing parameter sequence can be sent to a relevant user, so that the relevant user can detect the state of the storage battery.

Therefore, the optional embodiment can calculate the common statistic of the vehicle starting signal, and is beneficial to analyzing the working state of the storage battery through the subsequent intuitive calculation result, so that the reliability and the accuracy of detection on the working state of the storage battery are improved.

EXAMPLE III

Referring to fig. 4, fig. 4 is a schematic structural diagram of a vehicle starting signal generating device applied to battery state detection according to an embodiment of the present invention. As shown in fig. 4, the vehicle start signal generating apparatus applied to the battery state detection may include:

a determining module 301, configured to determine a state corresponding to a currently pending voltage signal in the acquired voltage signal sequence;

the judging module 302 is configured to judge whether a generation condition of a vehicle starting signal is met according to a state corresponding to a currently undetermined voltage signal;

and the signal generating module 303 is configured to generate a vehicle starting signal according to a state corresponding to the currently pending voltage signal when the determining module 302 determines that the generating condition of the vehicle starting signal is met.

In the embodiment of the invention, the voltage signal sequence comprises at least one voltage signal, all the voltage signals comprise the currently undetermined voltage signal, and all the voltage signals are arranged according to the sequence of the acquisition time.

It can be seen that the vehicle starting signal generating device applied to the storage battery state detection described in fig. 4 can automatically detect the state of the vehicle storage battery through the vehicle starting signal generated in real time, and does not need to perform regular state detection on the storage battery by related technicians, thereby embodying the intelligence of the storage battery state detection work by the storage battery detection system, thus being beneficial to improving the state detection efficiency of the storage battery, further being beneficial to improving the state detection timeliness of the storage battery, and discovering abnormal working problems of the storage battery in time, thereby being beneficial to performing timely maintenance and replacement processing on the storage battery, reducing the occurrence of vehicle starting failure, and enabling the vehicle to be started and run smoothly.

In an alternative embodiment, the determining module 301 includes:

the judging submodule 3011 is configured to judge whether a currently undetermined voltage signal in the acquired voltage signal sequence is a first voltage signal;

the first determining submodule 3012 is configured to determine, when the determining submodule 3011 determines that the currently pending voltage signal is the first voltage signal, that a state corresponding to the currently pending voltage signal is the first state; when the judging submodule 3011 judges that the currently undetermined voltage signal is not the first voltage signal, determining a second voltage signal matched with the currently undetermined voltage signal from all the voltage signals;

the calculating submodule 3013 is configured to calculate a voltage vibration amplitude corresponding to the second voltage signal;

the second determining submodule 3014 is configured to determine, according to the voltage vibration amplitude corresponding to the second voltage signal and the determined state corresponding to the second voltage signal, a state corresponding to the currently undetermined voltage signal.

In this alternative embodiment, the first voltage signal is a voltage signal that is first arranged in a sequence of voltage signals; the second voltage signal is a voltage signal adjacent to the currently pending voltage signal by a previous bit and the state corresponding to the second voltage signal is determined based on the state corresponding to the voltage signal adjacent to the second voltage signal by the previous bit.

Wherein, the voltage vibration amplitude that the second voltage signal corresponds is:

It can be seen that, by implementing the vehicle start signal generating device applied to battery state detection described in fig. 5, the state corresponding to the currently undetermined voltage signal can be determined according to and in a targeted manner, so that the reliability and accuracy of the determined state corresponding to the currently undetermined voltage signal can be improved, and further, the reliability and accuracy of the generated vehicle start signal are improved, thereby improving the detection accuracy of the battery state.

In another alternative embodiment, the second determining sub-module 3014 includes:

the determining unit 30141 is configured to determine, when the determined state corresponding to the second voltage signal is the first state, a first comparison condition between a voltage vibration amplitude corresponding to the second voltage signal and a preset first voltage vibration threshold; determining a current accumulation counting parameter corresponding to the second voltage signal based on the first comparison condition, and determining a second comparison condition of the current accumulation counting parameter corresponding to the second voltage signal and a preset initial no-load voltage estimated calculation length; and determining the state corresponding to the currently pending voltage signal based on the second comparison condition.

In this alternative embodiment, the first voltage oscillation threshold is a maximum voltage oscillation threshold at a static vehicle no-load voltage condition.

v ₀ is a first voltage vibration threshold, T _i-1 For the last accumulated count parameter, T, corresponding to the second voltage signal _i The current accumulation counting parameter is corresponding to the second voltage signal;

It can be seen that, by implementing the vehicle start signal generating device applied to battery state detection described in fig. 5, the state corresponding to the currently undetermined voltage signal can be determined through the voltage vibration amplitude corresponding to the second voltage signal and the state corresponding to the predetermined second voltage signal, so that the intellectualization of the state determination mode of the currently undetermined voltage signal by the battery detection system is embodied, and the reliability and the accuracy of the state determination result of the obtained currently undetermined voltage signal are improved.

In yet another alternative embodiment, the determining unit 30141 is further configured to:

when the determined state corresponding to the second voltage signal is a second state, determining a third comparison condition between the voltage vibration amplitude corresponding to the second voltage signal and a preset second voltage vibration threshold; determining a current accumulation count parameter corresponding to the second voltage signal and a current signal characteristic parameter corresponding to the second voltage signal based on the third comparison condition; determining a fourth comparison condition of the voltage vibration amplitude corresponding to the second voltage signal and a preset instantaneous voltage threshold, and determining a fifth comparison condition of a current signal characteristic parameter corresponding to the second voltage signal and a preset voltage increment median value required for starting the vehicle; and determining the state corresponding to the currently pending voltage signal based on the fourth comparison condition and the fifth comparison condition.

In this alternative embodiment, the second voltage vibration threshold is a maximum voltage vibration threshold at a no-load voltage condition of the starting vehicle; the instantaneous voltage threshold is the minimum instantaneous voltage threshold required to start the vehicle.

The current accumulation count parameter corresponding to the second voltage signal is:

v ₁ a second voltage vibration threshold;

v _p is the instantaneous voltage threshold, v _dp Median value of voltage increase required for starting the vehicle, S ₂ Is in the third state.

It can be seen that, by implementing the vehicle start signal generating device applied to battery state detection described in fig. 5, the state corresponding to the currently undetermined voltage signal can be determined through the voltage vibration amplitude corresponding to the second voltage signal and the state corresponding to the predetermined second voltage signal, so that the intellectualization of the state determination mode of the currently undetermined voltage signal by the battery detection system is further embodied, and the reliability and the accuracy of the obtained state determination result of the currently undetermined voltage signal are further improved.

when the determined state corresponding to the second voltage signal is a third state, determining a sixth comparison condition between the voltage vibration amplitude corresponding to the second voltage signal and a preset third voltage vibration threshold; determining a current accumulation count parameter corresponding to the second voltage signal based on a sixth comparison condition; determining a third voltage signal matching the second voltage signal;

and, the second determining sub-module 3014 further includes:

a filtering unit 30142, configured to perform a filtering operation on the second voltage signal according to one or more of the filtered third voltage signal, a preset baseline correction parameter, a preset white noise compensation coefficient, and a preset white noise parameter, so as to obtain a filtered second voltage signal;

the determining unit 30141 is further configured to determine a fourth voltage signal matched with the second voltage signal, and determine a target swing parameter corresponding to the second voltage signal based on one or more of the filtered second voltage signal, the filtered third voltage signal, the filtered fourth voltage signal, and a current accumulation count parameter corresponding to the second voltage signal; and determining the state corresponding to the currently undetermined voltage signal based on one or more of a preset maximum voltage length threshold value required for starting the vehicle, a maximum voltage vibration stability length threshold value, a voltage swing threshold value, a voltage amplitude threshold value, a target swing parameter corresponding to the second voltage signal and a currently accumulated counting parameter corresponding to the second voltage signal.

In this alternative embodiment, the third voltage vibration threshold is a voltage vibration stability threshold in a vehicle starting state; the third voltage signal is a voltage signal adjacent to the second voltage signal and previous to the second voltage signal; the fourth voltage signal is a voltage signal adjacent to the second voltage signal by the first two bits; the maximum voltage vibration stability length threshold is a maximum voltage vibration stability length threshold in a vehicle starting state.

v ₂ a third voltage vibration threshold;

the filtered second voltage signal is:

y _k is the filtered second voltage signal, y _k-1 Is the filtered third voltage signal, A is the baseline correction parameter, B is the white noise compensation coefficient, u _k Is a white noise parameter, where u _k =y _k-1 -x _k-1 ；

The target swing parameter corresponding to the second voltage signal is:

w _max voltage length threshold, w, required for maximum vehicle start ₁ A maximum voltage vibration stability length threshold, v ₃ Is a voltage amplitude threshold, n is a voltage swing threshold, S ₃ Is in the fourth state.

It can be seen that, by implementing the vehicle start signal generating device applied to battery state detection described in fig. 5, the state corresponding to the currently undetermined voltage signal can also be determined through the voltage vibration amplitude corresponding to the second voltage signal and the state corresponding to the predetermined second voltage signal, so that the intellectualization of the state determination mode of the currently undetermined voltage signal by the battery detection system is improved, the reliability and the accuracy of the obtained state determination result of the currently undetermined voltage signal are improved, and the subsequent accurate determination of the generation of the vehicle start signal is facilitated to be improved.

when the determined state corresponding to the second voltage signal is the fourth state, determining that the state corresponding to the currently undetermined voltage signal is the second state;

and the determining module 302 determines whether the generation condition of the vehicle start signal is satisfied according to the state corresponding to the currently undetermined voltage signal in a specific manner:

Therefore, the vehicle starting signal generating device applied to storage battery state detection and described in fig. 5 can accurately judge the generation work of the vehicle starting signal, so that the intelligence of the storage battery detection system on the generation work of the vehicle starting signal is embodied, a user can acquire convenient storage battery state information through the generated vehicle starting signal, the storage battery is timely maintained, and the abnormal working condition of the storage battery is reduced.

In another optional embodiment, the signal generating module 303 generates the vehicle start signal according to the state corresponding to the currently pending voltage signal in a specific manner:

screening all second target voltage signals of which the states are third states from all the first target voltage signals according to the states corresponding to all the first target voltage signals;

In this alternative embodiment, the first target voltage signal represents a voltage signal for which a corresponding state has been determined in the sequence of voltage signals; and all the second target voltage signals in the target voltage signal sequence are arranged according to the sequence of the acquisition time.

Therefore, the vehicle starting signal generating device applied to the storage battery state detection and described in the embodiment of fig. 5 can calculate the common statistic of the vehicle starting signal, so that the subsequent analysis of the working state of the storage battery through the intuitive calculation result is facilitated, and the detection reliability and the accuracy of the working state of the storage battery are facilitated to be improved.

In yet another alternative embodiment, the apparatus further comprises:

an updating module 304, configured to update a voltage signal next to the currently undetermined voltage signal in all voltage signals to the currently undetermined voltage signal after the determining module 301 determines the state corresponding to the currently undetermined voltage signal in the acquired voltage signal sequence, trigger an operation performed by the determining module 301 to determine the state corresponding to the currently undetermined voltage signal in the acquired voltage signal sequence, and trigger an operation performed by the determining module 302 to determine whether the generation condition of the vehicle start signal is satisfied according to the state corresponding to the currently undetermined voltage signal.

It can be seen that, the vehicle starting signal generating device applied to battery state detection described in fig. 5 can perform real-time state determination on each voltage signal in the voltage signal sequence and can perform real-time determination on generation of the vehicle starting signal, and does not need to participate in calculation results manually, so that the generation intelligence of the vehicle starting signal is embodied, and thus, the generation efficiency of the vehicle starting signal can be improved, and further, the generation timeliness of the vehicle starting signal can be improved, so that a convenient vehicle starting signal can be provided for a user in time, and the user can detect the state of the battery in time through the vehicle starting signal.

Example four

Referring to fig. 6, fig. 6 is a schematic structural diagram of another vehicle start signal generating device applied to battery state detection according to the embodiment of the present invention. As shown in fig. 6, the vehicle start signal generating apparatus applied to the battery state detection may include:

a memory 401 storing executable program code;

a processor 402 coupled with the memory 401;

the processor 402 calls the executable program code stored in the memory 401 to execute the steps of the vehicle start signal generation method applied to the battery state detection described in the first embodiment or the second embodiment of the present invention.

EXAMPLE five

The embodiment of the invention discloses a computer storage medium, which stores computer instructions, and when the computer instructions are called, the computer instructions are used for executing the steps of the vehicle starting signal generation method applied to the storage battery state detection, which is described in the first embodiment or the second embodiment of the invention.

EXAMPLE six

An embodiment of the present invention discloses a computer program product, which includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute the steps of the vehicle start signal generation method applied to battery state detection described in embodiment one or embodiment two.

The above-described embodiments of the apparatus are merely illustrative, and the modules described as separate components may or may not be physically separate, and the components shown as modules may or may not be physical modules, may be located in one place, or may be distributed on a plurality of network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

Through the above detailed description of the embodiments, those skilled in the art will clearly understand that the embodiments may be implemented by software plus a necessary general hardware platform, and may also be implemented by hardware. Based on such understanding, the above technical solutions may be embodied in the form of a software product, which may be stored in a computer-readable storage medium, wherein the storage medium includes a Read-Only Memory (ROM), a Random Access Memory (RAM), a Programmable Read-Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), a One-time Programmable Read-Only Memory (OTPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), a Compact Disc-Read-Only Memory (CD-ROM) or other Memory capable of storing data, a magnetic tape, or any other computer-readable medium capable of storing data.

Finally, it should be noted that: the method and apparatus for generating a vehicle start signal applied to battery status detection disclosed in the embodiments of the present invention are only preferred embodiments of the present invention, and are only used for illustrating the technical solutions of the present invention, rather than limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art; the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vehicle activation signal generation method applied to battery condition detection, the method comprising:

determining a state corresponding to a currently undetermined voltage signal in the acquired voltage signal sequence; the voltage signal sequence comprises at least one voltage signal, all the voltage signals comprise the currently undetermined voltage signal and are arranged according to the sequence of acquisition time, and the state corresponding to the currently undetermined voltage signal is determined based on the determined states corresponding to all the determined voltage signals arranged in the voltage signal sequence before the currently undetermined voltage signal;

when the condition that the vehicle starting signal is generated is judged to be met, generating the vehicle starting signal according to the state corresponding to the currently undetermined voltage signal;

wherein, the determining the state corresponding to the currently undetermined voltage signal in the collected voltage signal sequence comprises:

when the currently undetermined voltage signal is judged to be the first voltage signal, determining that the state corresponding to the currently undetermined voltage signal is a first state;

and determining the state corresponding to the currently undetermined voltage signal according to the voltage vibration amplitude corresponding to the second voltage signal and the determined state corresponding to the second voltage signal.

2. The vehicle start signal generation method applied to battery state detection according to claim 1, characterized in that the second voltage signal corresponds to a voltage vibration amplitude of:

3. The vehicle starting signal generating method applied to battery state detection according to claim 2, wherein the determining the state corresponding to the currently pending voltage signal according to the voltage vibration amplitude corresponding to the second voltage signal and the determined state corresponding to the second voltage signal comprises:

when the determined state corresponding to the second voltage signal is the first state, determining a first comparison condition between the voltage vibration amplitude corresponding to the second voltage signal and a preset first voltage vibration threshold; the first voltage vibration threshold value is the maximum voltage vibration threshold value under the state of no-load voltage of the static vehicle;

v ₀ vibrating threshold for the first voltageValue, T _i-1 For the last accumulated count parameter, T, corresponding to the second voltage signal _i The current accumulation counting parameter corresponding to the second voltage signal is obtained;

4. The vehicle start signal generation method applied to battery state detection according to claim 3, characterized by further comprising:

v ₁ is the second voltage vibration threshold;

5. The vehicle start signal generation method applied to battery state detection according to claim 4, characterized by further comprising:

6. The vehicle start signal generation method applied to battery state detection according to claim 5, characterized by further comprising:

7. The vehicle starting signal generating method applied to battery state detection according to claim 6, wherein the generating the vehicle starting signal according to the state corresponding to the currently pending voltage signal comprises:

and updating the voltage signal which is adjacent to the last voltage signal in the current undetermined voltage signal in all the voltage signals into the current undetermined voltage signal, triggering and executing the state corresponding to the current undetermined voltage signal in the acquired voltage signal sequence, and judging whether the operation of generating conditions of the vehicle starting signal is met or not according to the state corresponding to the current undetermined voltage signal.

8. The vehicle start signal generation method applied to battery state detection according to claim 5, characterized in that the current accumulation count parameter corresponding to the second voltage signal is:

v ₂ is the third voltage vibration threshold;

the filtered second voltage signal is:

y _k is the filtered second voltage signal, y _k-1 The filtered third voltage signal is obtained by A representing the baseline correction parameter, B representing the white noise compensation coefficient, u _k Is the white noise parameter, wherein u _k ＝y _k-1 -x _k-1 ；

α _i a target swing parameter, y, corresponding to the second voltage signal _k-2 Is the filtered fourth voltage signal;

w _max voltage required for said maximum starting of the vehicleLength threshold, w ₁ For said maximum voltage vibration stability length threshold, v ₃ Is the voltage amplitude threshold, n is the voltage swing threshold, S ₃ Is in the fourth state.

9. A vehicle activation signal generation device applied to battery condition detection, the device comprising:

the determining module is used for determining the state corresponding to the currently undetermined voltage signal in the acquired voltage signal sequence; the voltage signal sequence comprises at least one voltage signal, all the voltage signals comprise the currently pending voltage signal and are arranged according to the sequence of acquisition time, and the state corresponding to the currently pending voltage signal is determined based on the determined states corresponding to all the determined voltage signals arranged in the voltage signal sequence before the currently pending voltage signal;

the signal generation module is used for generating the vehicle starting signal according to the state corresponding to the currently undetermined voltage signal when the judgment module judges that the generation condition of the vehicle starting signal is met;

wherein the determining module comprises:

the calculation submodule is used for calculating the voltage vibration amplitude corresponding to the second voltage signal; the second voltage signal is a voltage signal adjacent to the currently pending voltage signal by a previous bit and the state corresponding to the second voltage signal is determined based on the state corresponding to the voltage signal adjacent to the second voltage signal by the previous bit;

and the second determining submodule is used for determining the state corresponding to the currently undetermined voltage signal according to the voltage vibration amplitude corresponding to the second voltage signal and the determined state corresponding to the second voltage signal.

10. A vehicle activation signal generation device applied to battery condition detection, the device comprising: a memory storing executable program code;

a processor coupled with the memory;

the processor invokes the executable program code stored in the memory to perform the vehicle activation signal generation method for battery condition detection according to any one of claims 1-8.