阅读说明：本技术 一种用于连接电动汽车的弯沉仪连接装置及其控制方法 (Deflectometer connecting device for connecting electric automobile and control method thereof ) 是由 何正东 于 2021-08-21 设计创作，主要内容包括：本发明公开了一种用于连接电动汽车的弯沉仪连接装置,包括动力电池输出接口,用于向外输出电能；降压模块,与动力电池输出接口连接,用于将动力电池的输出电压降低至弯沉仪蓄电池的充电电压；充电电流控制模块,串联在降压模块的输出端,用于控制弯沉仪蓄电池的充电电流；蓄电池充电接口,与充电电流控制模块连接,用于向蓄电池充电；动力电池电流监控模块,用于监控动力电池的实时电流,并将监控到的电流值发送至充电电流控制模块；动力电池温度监控模块,用于监控动力电池的实时温度,并将监控到的温度值发送至充电电流控制模块。本发明能够改进现有技术的不足,使动力电池的使用和弯沉仪的充电同步保持在一个较佳的水平上。(The invention discloses a deflectometer connecting device for connecting an electric automobile, which comprises a power battery output interface, a control circuit and a control circuit, wherein the power battery output interface is used for outputting electric energy outwards; the voltage reduction module is connected with the output interface of the power battery and used for reducing the output voltage of the power battery to the charging voltage of the storage battery of the deflectometer; the charging current control module is connected in series with the output end of the voltage reduction module and is used for controlling the charging current of the storage battery of the deflectometer; the storage battery charging interface is connected with the charging current control module and is used for charging the storage battery; the power battery current monitoring module is used for monitoring the real-time current of the power battery and sending the monitored current value to the charging current control module; and the power battery temperature monitoring module is used for monitoring the real-time temperature of the power battery and sending the monitored temperature value to the charging current control module. The invention can improve the defects of the prior art, and the use of the power battery and the charging of the deflectometer are synchronously kept at a better level.)

1. The utility model provides a deflectometer connecting device for connecting electric automobile which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

the power battery output interface (1) is used for outputting electric energy outwards;

the voltage reduction module (2) is connected with the power battery output interface (1) and is used for reducing the output voltage of the power battery to the charging voltage of the storage battery of the deflectometer;

the charging current control module (3) is connected in series with the output end of the voltage reduction module (2) and is used for controlling the charging current of the storage battery of the deflectometer;

the storage battery charging interface (4) is connected with the charging current control module (3) and is used for charging the storage battery;

the power battery current monitoring module (5) is used for monitoring the real-time current of the power battery and sending the monitored current value to the charging current control module (3);

and the power battery temperature monitoring module (6) is used for monitoring the real-time temperature of the power battery and sending the monitored temperature value to the charging current control module (3).

2. A control method for connecting a deflectometer connecting device of an electric vehicle according to claim 1, characterized by comprising the steps of:

A. the voltage reduction module (2) controls charging voltage according to the charging state of the storage battery of the deflectometer;

B. the power battery current monitoring module (5) and the power battery temperature monitoring module (6) respectively monitor the real-time current and the real-time temperature of the power battery, when the current and/or the temperature of the power battery do not exceed a set threshold value, the charging current control module (3) controls the charging current according to the charging state of the storage battery of the deflectometer, and when the current and/or the temperature of the power battery exceed the set threshold value, the charging current control module (3) controls the charging current according to the current of the power battery, the temperature of the power battery and the charging state of the storage battery of the deflectometer.

3. The control method for connecting a deflectometer connecting device of an electric vehicle according to claim 2, characterized in that: in the step B, the charging current control module (3) controls the charging current according to the current of the power battery, the temperature of the power battery and the charging state of the storage battery of the deflectometer,

b1, establishing optimal current data of the power battery at different temperatures and optimal charging current data of the storage battery of the deflectometer at different charging states to form a target data set;

b2, randomly generating a plurality of individuals, wherein each individual comprises a power battery temperature, a power battery current and a deflectometer storage battery charging current;

b3, selecting and calculating the individuals generated in the step B2;

b4, carrying out cross operation on the new individuals obtained in the step B3;

b5, performing mutation operation on the new individuals obtained in the step B4;

b6, calculating the deviation amount of the corresponding best data in the target data set by using the new individual obtained in the step B5;

b7, if the minimum deviation value calculated in the step B6 is smaller than the set threshold, using the minimum deviation value as the control parameter of the charging current control module (3), and if the minimum deviation value calculated in the step B6 is larger than or equal to the set threshold, returning to the step B3.

4. The control method for connecting a deflectometer connecting device of an electric vehicle according to claim 3, characterized in that: in step B3, deviation values of the power battery current and the storage battery charging current of the deflectometer in the individual and the optimal data are respectively calculated, the data with the small deviation values are used as judgment targets, when the judgment targets are larger than the selection threshold, the individual is reserved and copied, otherwise, the individual is deleted.

5. The control method for connecting a deflectometer connecting device of an electric vehicle according to claim 4, characterized in that: in step B4, a crossover probability is first set, the crossover probability being inversely proportional to the individual retention rate in step B3; then, the intersection point is set on the non-determination target data, and the intersection operation is performed.

6. The control method for connecting a deflectometer connecting device of an electric vehicle according to claim 5, characterized in that: in step B5, a history variation blacklist is set, and variation calculation that causes an increase in deviation from the best data in the history variation calculation is added to the history variation blacklist; then, variation points are set on the judgment target data, variation operation is carried out, and variation operation in each round does not include variation operation in a historical variation blacklist.

Technical Field

The invention relates to a technology for adapting a deflectometer and an electric automobile, in particular to a deflectometer connecting device for connecting the electric automobile and a control method thereof.

Background

With the development of electric driving of automobiles, electric automobiles have an increasingly large proportion of the total automobile inventory. The deflectometer needs to use a traction vehicle when in work, and the electric vehicle is very convenient to directly charge the deflectometer through the power battery of the electric vehicle due to the power battery with larger capacity. However, since the power battery of the electric vehicle is continuously discharged and charged during running, the battery state is not constant, which affects the charging of the deflectometer.

Disclosure of Invention

The invention aims to provide a deflectometer connecting device for connecting an electric automobile and a control method thereof, which can solve the defects of the prior art and ensure that the use of a power battery and the charging of a deflectometer are synchronously kept at a better level.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows.

A deflectometer connecting device for connecting an electric automobile comprises,

the power battery output interface is used for outputting electric energy outwards;

the voltage reduction module is connected with the output interface of the power battery and used for reducing the output voltage of the power battery to the charging voltage of the storage battery of the deflectometer;

the charging current control module is connected in series with the output end of the voltage reduction module and is used for controlling the charging current of the storage battery of the deflectometer;

the storage battery charging interface is connected with the charging current control module and is used for charging the storage battery;

the power battery current monitoring module is used for monitoring the real-time current of the power battery and sending the monitored current value to the charging current control module;

and the power battery temperature monitoring module is used for monitoring the real-time temperature of the power battery and sending the monitored temperature value to the charging current control module.

The control method for connecting the deflectometer connecting device of the electric automobile comprises the following steps:

A. the voltage reduction module controls charging voltage according to the charging state of the storage battery of the deflectometer;

B. the power battery current monitoring module and the power battery temperature monitoring module respectively monitor the real-time current and the real-time temperature of the power battery, when the current and/or the temperature of the power battery do not exceed a set threshold value, the charging current control module controls the charging current according to the charging state of the storage battery of the deflectometer, and when the current and/or the temperature of the power battery exceed the set threshold value, the charging current control module controls the charging current according to the current of the power battery, the temperature of the power battery and the charging state of the storage battery of the deflectometer.

Preferably, in the step B, the step of controlling the charging current by the charging current control module according to the power battery current, the power battery temperature and the state of charge of the deflectometer storage battery comprises the following steps,

b1, establishing optimal current data of the power battery at different temperatures and optimal charging current data of the storage battery of the deflectometer at different charging states to form a target data set;

b2, randomly generating a plurality of individuals, wherein each individual comprises a power battery temperature, a power battery current and a deflectometer storage battery charging current;

b3, selecting and calculating the individuals generated in the step B2;

b4, carrying out cross operation on the new individuals obtained in the step B3;

b5, performing mutation operation on the new individuals obtained in the step B4;

b6, calculating the deviation amount of the corresponding best data in the target data set by using the new individual obtained in the step B5;

b7, if the minimum deviation value calculated in step B6 is smaller than the set threshold, the individual with the minimum deviation value is used as the control parameter of the charging current control module, and if the minimum deviation value calculated in step B6 is greater than or equal to the set threshold, the process returns to step B3.

Preferably, in step B3, deviation values of the power battery current and the deflectometer battery charging current in the individuals from the optimal data are calculated respectively, the data with smaller deviation values are used as the determination targets, when the determination targets are larger than the selection threshold, the individuals are retained and copied, otherwise, the individuals are deleted.

Preferably, in step B4, a crossover probability is first set, the crossover probability being inversely proportional to the individual retention rate in step B3; then, the intersection point is set on the non-determination target data, and the intersection operation is performed.

Preferably, in step B5, a history mutation blacklist is set, and a mutation operation that causes an increase in the amount of deviation from the best data in the history mutation operation is added to the history mutation blacklist; then, variation points are set on the judgment target data, variation operation is carried out, and variation operation in each round does not include variation operation in a historical variation blacklist.

Adopt the beneficial effect that above-mentioned technical scheme brought to lie in: the invention obtains the optimal value of the charging current by synchronously analyzing the working state of the power battery and the charging state of the storage battery of the deflectometer. Genetic algorithms are used in the analysis process, but because the traditional genetic algorithms are built on the basis of random evolution, the operation process usually needs more rounds of calculation to obtain the optimal data. For the problem of charging the deflectometer by using a power battery, the optimal parameters are centralized and fixed, and the traditional genetic algorithm causes excessive calculation. Therefore, the invention specially improves the selection, crossing and variation operations in the genetic algorithm, and adds effective limiting conditions, thereby greatly reducing the iteration times, reducing the operation amount and improving the real-time performance of the charging current control.

Drawings

FIG. 1 is a schematic diagram of one embodiment of the present invention.

Detailed Description

Referring to fig. 1, a deflectometer connecting device for connecting an electric vehicle includes,

the power battery output interface 1 is used for outputting electric energy outwards;

the voltage reduction module 2 is connected with the power battery output interface 1 and used for reducing the output voltage of the power battery to the charging voltage of the storage battery of the deflectometer;

the charging current control module 3 is connected in series with the output end of the voltage reduction module 2 and is used for controlling the charging current of the storage battery of the deflectometer;

the storage battery charging interface 4 is connected with the charging current control module 3 and is used for charging the storage battery;

the power battery current monitoring module 5 is used for monitoring the real-time current of the power battery and sending the monitored current value to the charging current control module 3;

and the power battery temperature monitoring module 6 is used for monitoring the real-time temperature of the power battery and sending the monitored temperature value to the charging current control module 3.

The control method for connecting the deflectometer connecting device of the electric automobile comprises the following steps:

A. the voltage reduction module 2 controls charging voltage according to the charging state of the storage battery of the deflectometer;

B. the power battery current monitoring module 5 and the power battery temperature monitoring module 6 respectively monitor the real-time current and the real-time temperature of the power battery, when the current and/or the temperature of the power battery do not exceed a set threshold, the charging current control module 3 controls the charging current according to the charging state of the storage battery of the deflectometer, and when the current and/or the temperature of the power battery exceed the set threshold, the charging current control module 3 controls the charging current according to the current of the power battery, the temperature of the power battery and the charging state of the storage battery of the deflectometer.

In the step B, the charging current control module 3 controls the charging current according to the power battery current, the power battery temperature and the charging state of the deflection instrument storage battery and comprises the following steps,

b1, establishing optimal current data of the power battery at different temperatures and optimal charging current data of the storage battery of the deflectometer at different charging states to form a target data set;

b2, randomly generating a plurality of individuals, wherein each individual comprises a power battery temperature, a power battery current and a deflectometer storage battery charging current;

b3, selecting and calculating the individuals generated in the step B2;

b4, carrying out cross operation on the new individuals obtained in the step B3;

b5, performing mutation operation on the new individuals obtained in the step B4;

b6, calculating the deviation amount of the corresponding best data in the target data set by using the new individual obtained in the step B5;

b7, if the minimum deviation value calculated in step B6 is smaller than the set threshold, the individual with the minimum deviation value is used as the control parameter of the charging current control module 3, and if the minimum deviation value calculated in step B6 is greater than or equal to the set threshold, the process returns to step B3.

In step B3, deviation values of the power battery current and the storage battery charging current of the deflectometer in the individual and the optimal data are respectively calculated, the data with the small deviation values are used as judgment targets, when the judgment targets are larger than the selection threshold, the individual is reserved and copied, otherwise, the individual is deleted.

In step B4, a crossover probability is first set, the crossover probability being inversely proportional to the individual retention rate in step B3; then, the intersection point is set on the non-determination target data, and the intersection operation is performed.

In step B5, a history variation blacklist is set, and variation calculation that causes an increase in deviation from the best data in the history variation calculation is added to the history variation blacklist; then, variation points are set on the judgment target data, variation operation is carried out, and variation operation in each round does not include variation operation in a historical variation blacklist.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.