A real-time anti-modification method and system for a hybrid new energy vehicle range extender

Abstract

This invention relates to a real-time anti-modification method and system for range extenders in hybrid electric vehicles, belonging to the field of range extender technology. The method includes: acquiring real-time output current and real-time input current; determining a reference error range based on the real-time input current and a reference error rate; determining the presence of a range extender based on the real-time output current, real-time input current, and the reference error range; when a range extender is present, controlling the vehicle controller to output encrypted information to the range extender; acquiring a decryption algorithm; after the range extender receives the encrypted information, determining the decrypted information based on the decryption algorithm and the encrypted information; determining whether the vehicle controller receives the decrypted information within a reference number of receptions; if received, re-acquiring the real-time output current and real-time input current; if not received, generating a warning message indicating that the range extender is not original equipment and outputting it to a display terminal. This application improves the safety of hybrid electric vehicles.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicle range extenders, and in particular to a real-time anti-refit method and system for a hybrid new energy vehicle range extender. Background Art

[0002] At present, hybrid new energy vehicles are a kind of pure electric drive new energy vehicles equipped with ground charging and on-board power supply functions. The power generated by the vehicle controller on the hybrid new energy vehicle is provided by the battery pack and auxiliary power range extender of the new energy vehicle.

[0003] In the prior art, the range extender is mainly composed of an internal combustion engine, a generator and a controller. When a hybrid new energy vehicle uses a range extender to travel, the fuel is generally burned in the internal combustion engine to generate heat to drive the generator to rotate. The mechanical energy generated by the rotation of the generator is converted into electrical energy and stored in the battery pack, which significantly improves the range of the hybrid new energy vehicle. When the hybrid new energy vehicle uses the range extender to travel, the range extender communicates with the hybrid vehicle and uploads the corresponding operating data after using the range extender to the display terminal of the hybrid new energy vehicle.

[0004] With respect to the above-mentioned related technologies, when a hybrid new energy vehicle uses a range extender modified from non-original parts, the modified range extender is not easy to communicate with the system of the hybrid new energy vehicle during the driving of the hybrid new energy vehicle, resulting in the display terminal not displaying the corresponding operating data after using the range extender, resulting in the use of a non-original modified range extender affecting the life of the battery pack and the safety of the hybrid new energy vehicle. Summary of the invention

[0005] In order to improve the safety of hybrid new energy vehicles, the present invention provides a real-time anti-refit method and system for a hybrid new energy vehicle range extender.

[0006] In a first aspect, the present invention provides a real-time anti-modification method for a hybrid new energy vehicle range extender, which adopts the following technical solution:

[0007] A real-time anti-modification method for a hybrid new energy vehicle range extender, comprising:

[0008] Obtain the real-time output current of the battery pack in the car and the real-time input current of the car controller;

[0009] Determine the reference error range according to the real-time input current and the preset reference error rate;

[0010] Determine the presence of the range extender based on the real-time output current, the real-time input current, and the reference error range;

[0011] When there is a range extender in the car, the car controller is controlled to output preset encrypted information to the range extender;

[0012] Obtain the decryption algorithm corresponding to the original range extender;

[0013] After the range extender receives the encrypted information, the decrypted information is determined based on the decryption algorithm and the encrypted information;

[0014] Determining whether the vehicle controller receives the decrypted information within a preset reference receiving number of times;

[0015] If received, the real-time output current and the real-time input current are re-acquired;

[0016] If not received, the abnormal situation of the range extender being not original will be formed into a warning prompt information, and the warning prompt information will be output to a display terminal preset on the car.

[0017] By adopting the above technical scheme, the presence of a range extender in a hybrid new energy vehicle is determined by the real-time output current, the real-time input current and the reference error rate, and then the abnormal situation that the range extender is not original is determined by the vehicle controller's reception of the decrypted information output by the range extender, and the abnormal situation is output as a warning prompt information to the display terminal, thereby warning of the presence of a non-original range extender in the hybrid vehicle, thereby improving the safety of the hybrid new energy vehicle.

[0018] Optionally, the presence of a range extender can be determined by:

[0019] Calculate the difference between the real-time output current and the real-time input current and use it as the current error value;

[0020] At the same time, determine whether the real-time output current is consistent with the real-time input current and whether the current error value is greater than the reference error range;

[0021] If the real-time output current is consistent with the real-time input current and the current error value is not greater than the reference error range, the number of times the current error value occurs is obtained;

[0022] Determine the reference number according to whether the real-time input current falls within a preset reference detection range;

[0023] If and only if the error times are consistent with the reference times, the range extender in the vehicle is not started or does not exist;

[0024] If the real-time output current is inconsistent with the real-time input current or the current error value is greater than the reference error range, it is determined that there is a range extender on the vehicle.

[0025] By adopting the above technical solution, by simultaneously judging whether the real-time output current is consistent with the real-time input current and whether the current error value is greater than the benchmark error range, when the real-time output current is consistent with the real-time input current and the current error value is not greater than the benchmark error range, it is determined that the range extender is not started or does not exist through the consistency between the error number and the benchmark number; otherwise, it is determined that there is a range extender on the vehicle, thereby timely determining the existence of the range extender, which facilitates verification of the non-original situation of the range extender.

[0026] Optionally, the specific steps before the range extender in the vehicle is not started or does not exist are also included:

[0027] Obtaining a reference frequency range corresponding to a detection error device preset in the vehicle;

[0028] Determine whether the real-time input current falls within the reference detection range;

[0029] If it falls within, a new benchmark number is determined based on the difference between the maximum value of the benchmark detection range and the maximum value of the benchmark number range, and the consistency between the error number and the benchmark number is continued to be determined;

[0030] If it does not fall within the range, the difference between the real-time input current and the end value of the reference detection range is calculated and used as the current deviation value;

[0031] Determine whether the current deviation value is positive;

[0032] If yes, the maximum end value of the reference number range is used as the new reference number and the error number is re-judged to see whether it is consistent with the reference number;

[0033] If not, then the consistency between the benchmark times and the minimum end value of the benchmark times range is used to determine that there is no abnormality in the real-time input current or that there is no range extender in the vehicle.

[0034] By adopting the above technical solution, it is determined that the range extender does not exist or is not started by the real-time input current falling within the benchmark detection range, thereby improving the accuracy of knowing the existence of the range extender and facilitating the verification of the non-original situation of the range extender.

[0035] Optionally, the specific steps are also included before the vehicle controller is controlled to output the preset encrypted information to the range extender:

[0036] Based on the automobile controller, the preset reference data is continuously output to a testing device for verifying that the automobile controller has output abnormality;

[0037] Determining response data corresponding to the inspection device according to the reference data;

[0038] Determine whether the data received by the vehicle controller is the response data corresponding to the reference data;

[0039] If the data received by the vehicle controller is not the response data corresponding to the reference data, abnormal prompt information is determined based on the situation of the communication path of the vehicle controller and output to the display terminal as early warning prompt information;

[0040] If the data received by the vehicle controller is response data corresponding to the reference data, the communication path of the vehicle controller is switched and the encrypted information is continuously output to the range extender.

[0041] By adopting the above technical solution, the output abnormality of the automobile controller is verified through the inspection device. If the data received by the automobile controller is not the response data corresponding to the reference data, the abnormal prompt information of the communication path of the automobile controller is determined and output to the display terminal as early warning prompt information, thereby improving the accuracy of verifying that the range extender is not original through current.

[0042] Optionally, the method further includes the following specific steps before outputting the warning prompt information to a display terminal preset on the vehicle:

[0043] Calculate the difference between the real-time input current and the real-time output current and use it as the extended-range output current corresponding to the range extender;

[0044] Obtain the real-time power of the battery pack and the fuel consumption per unit time;

[0045] The actual operation time and the extended-range operation time are calculated and determined based on the real-time power, the real-time output current and the extended-range output current;

[0046] Match the current speed from the preset driving database based on the real-time input current;

[0047] Calculate the quotient of the actual running time and the current speed and use it as the actual cruising distance;

[0048] Calculate the product of the extended range operation time and the fuel consumption and use it as the total fuel consumption;

[0049] The current speed, actual cruising distance and total fuel consumption are used as actual operating parameters;

[0050] Determine abnormal parameters of corresponding parameters in the benchmark operating parameters according to the real-time operating parameters and the preset benchmark operating parameters;

[0051] Based on the benchmark operating parameters, the allowable parameter range corresponding to each parameter in the benchmark operating parameters is retrieved;

[0052] If and only if the abnormal parameter does not fall within the allowable parameter range, the abnormal parameter is added to the early warning prompt information to form a new early warning prompt information and output it to the display terminal.

[0053] By adopting the above technical solution, the current speed, actual cruising distance and total fuel consumption are taken as actual operating parameters and compared with the benchmark operating parameters to determine the abnormal parameters. New early warning prompt information is obtained by determining whether the abnormal parameters fall within the allowable parameter range and output to the display terminal, thereby improving the accuracy of verifying that the range extender is not original through the abnormal conditions of the operating parameters.

[0054] Optionally, include specific steps before determining the baseline error range:

[0055] Get the internal temperature value of the car's interior;

[0056] Determine whether the internal temperature value falls within a preset reference temperature range;

[0057] If it falls within, continue to determine the benchmark error range;

[0058] If it does not fall within the range, the difference between the internal temperature value and the maximum value of the reference temperature range is calculated and used as the temperature deviation value;

[0059] According to the positive or negative condition of the temperature deviation value, a corresponding temperature storage device preset in the car is selected from different preset temperature storage devices as the selected storage device;

[0060] Determine temperature control information according to the internal temperature value and the selected storage device;

[0061] The temperature control information is output to a selected storage device to improve the accuracy of the reference error range.

[0062] By adopting the above technical solution, the temperature control information is determined by whether the internal temperature value falls within the reference temperature range to adjust the temperature inside the car, thereby reducing the impact of changes in current due to ambient temperature, thereby improving the accuracy of knowing the existence of the range extender through current and the corresponding original factory situation.

[0063] Optionally, a method for determining temperature control information:

[0064] Obtaining the real-time storage temperature value and the manufacturing parameters of the vehicle in the selected storage device;

[0065] Retrieve the actual resistance value corresponding to the battery pack and the vehicle controller based on the manufacturing parameters;

[0066] Calculate the difference between the real-time stored temperature value and the internal temperature value and use it as the adjusted temperature value;

[0067] Matching the conduction time from a preset temperature database based on the adjusted temperature value;

[0068] Calculate the product of the real-time input current, conduction time and the actual resistance value of the battery pack and use it as the battery temperature value;

[0069] Calculate the product of the real-time output current, conduction time and the actual resistance value of the vehicle controller and use it as the controller temperature value;

[0070] According to the battery temperature value and the controller temperature value, the temperature value with the largest value is selected as the actual generated temperature value;

[0071] Matching the conduction increase time from the temperature database based on the actual generated temperature value;

[0072] The sum of the conduction increase time and the conduction time is calculated as the adjustment time, and the adjustment time is used as the temperature control information.

[0073] By adopting the above technical solution, when the hybrid new energy vehicle is running, the adjustment time is determined by the conduction time and the actual temperature value and used as temperature control information, thereby reducing the impact of the ambient temperature on the current change, thereby improving the accuracy of the current passing through the current to know the existence of the range extender and the corresponding original factory situation.

[0074] Optionally, the method further includes the following specific steps after taking the adjustment time as the temperature control information:

[0075] Matching the maximum conduction time from the temperature database based on the adjusted temperature value;

[0076] Determine whether the maximum conduction time is less than the adjustment time;

[0077] If it is not less than, continue to output temperature control information;

[0078] If it is less than, the difference between the maximum conduction time and the adjusted time is calculated and used as the residual conduction time;

[0079] Matching the operating power corresponding to the temperature control component preset in the selected storage device from the temperature database based on the adjusted temperature value and the remaining conduction time;

[0080] The operating power is added to the temperature control information to form new temperature control information.

[0081] By adopting the above technical solution, when the hybrid new energy vehicle continues to run, the battery pack and the vehicle controller will continue to generate temperature. The operating power of the temperature control component is determined by comparing the maximum conduction time with the adjustment time, thereby continuing to reduce the impact of changes in ambient temperature on current, thereby improving the accuracy of the current passing through the current to know the existence of the range extender and the corresponding original factory situation.

[0082] Optionally, the specific steps after forming the new temperature control information are also included:

[0083] Get the external temperature value outside the car;

[0084] Retrieving the reference temperature range based on the specifications corresponding to different temperature storage devices;

[0085] If and only if the external temperature value does not fall within the reference temperature range, determining the temperature concentration location based on the external temperature value;

[0086] Calculate the difference between the external temperature value and the maximum value of the reference temperature range and use it as the changed temperature value;

[0087] According to the positive and negative conditions of the changed temperature value, a corresponding temperature storage device is selected from different temperature storage devices as a supplementary storage device;

[0088] Matching the change time from the temperature database based on the change temperature value;

[0089] Determining the moving position of the heat insulation component preset in the temperature storage device according to the temperature concentration position;

[0090] The moving position and the change time are used as temperature adjustment information, and the temperature adjustment information is output to the supplementary storage device so that the temperature in the temperature storage device is within the reference temperature range.

[0091] By adopting the above technical solution, after the temperature storage device cools down the interior of the hybrid new energy vehicle, the change time and the moving position are determined by the temperature value of the external environment, the changed temperature value and the concentrated place of the temperature as temperature adjustment information to adjust the insulation component in the temperature storage device, so that the temperature in the temperature storage device can be naturally supplemented by the external environment, thereby reducing the energy consumption when the temperature storage device outputs the temperature.

[0092] In the second aspect, the present application provides a real-time anti-modification system for a hybrid new energy vehicle range extender, which adopts the following technical solutions:

[0093] A real-time anti-modification system for a hybrid new energy vehicle range extender, comprising:

[0094] An acquisition module is used to acquire real-time output current, real-time input current, decryption algorithm, error times, reference times range, real-time power, fuel consumption, internal temperature value, real-time storage temperature value, manufacturing parameters and external temperature value;

[0095] A memory for storing a program of a real-time anti-modification method for a hybrid new energy vehicle range extender as described in the first aspect;

[0096] The program in the memory can be loaded and executed by the processor to implement a real-time anti-modification method for a hybrid new energy vehicle range extender as described in the first aspect.

[0097] In summary, the present application includes at least one of the following beneficial technical effects:

[0098] 1. The presence of a range extender in a hybrid new energy vehicle is determined by the real-time output current, the real-time input current and the reference error rate, and the abnormal situation of the range extender being non-original is determined by the vehicle controller receiving the decrypted information output by the range extender, and the abnormal situation is output as an early warning prompt information to the display terminal, so as to warn of the presence of a non-original range extender in the hybrid vehicle and improve the safety of the hybrid new energy vehicle;

[0099] 2. By simultaneously judging whether the real-time output current is consistent with the real-time input current and whether the current error value is greater than the reference error range, when the real-time output current is consistent with the real-time input current and the current error value is not greater than the reference error range, it is determined that the range extender is not started or does not exist through the consistency of the error times and the reference times. Otherwise, it is determined that there is a range extender on the vehicle, thereby timely determining the existence of the range extender, which is convenient for verifying the non-original situation of the range extender;

[0100] 3. Use the inspection device to verify the abnormal output of the vehicle controller. If the data received by the vehicle controller is not the response data corresponding to the reference data, the abnormal prompt information of the communication path of the vehicle controller is determined and output to the display terminal as early warning prompt information, thereby improving the accuracy of current verification that the range extender is not original. BRIEF DESCRIPTION OF THE DRAWINGS

[0101] Figure 1 This is a flow chart of a method for real-time anti-modification of a hybrid new energy vehicle range extender according to an embodiment of the present invention;

[0102] Figure 2 It is a method flow chart of a method for determining the presence of a range extender according to an embodiment of the present invention. DETAILED DESCRIPTION

[0103] The following is combined with Figure 1 to Figure 2 The present invention is further described in detail with examples.

[0104] A real-time anti-modification method and system for a hybrid new energy vehicle range extender, which determines the presence of the range extender through the current conditions between a battery pack and a vehicle controller in the hybrid new energy vehicle, and determines the original factory condition of the range extender through the conditions of receiving decrypted information between the range extender and the vehicle controller, and further adjusts through abnormal conditions when the vehicle controller uses the range extender to run, abnormal conditions output by the vehicle controller, and the temperature around the current, thereby improving the accuracy of current verification of the non-original factory condition of the range extender, thereby improving the safety of the hybrid new energy vehicle.

[0105] Reference Figure 1 The present application embodiment discloses a real-time anti-modification method for a hybrid new energy vehicle range extender, comprising the following steps:

[0106] Step S100: obtaining the real-time output current of the battery pack in the vehicle and the real-time input current of the vehicle controller.

[0107] The real-time output current refers to the current output by the new energy battery pack in the hybrid new energy vehicle in real time, and the real-time input current refers to the current input by the battery pack or range extender in the hybrid new energy vehicle into the vehicle controller in real time. The real-time input current can be the current output by the battery pack alone to the vehicle controller, or the total current output by the battery pack and the range extender to the vehicle controller at the same time. The corresponding parameters are detected by the current sensors preset on the battery pack and the vehicle controller as the real-time output current and real-time input current.

[0108] Step S101: determining a reference error range according to the real-time input current and a preset reference error rate.

[0109] The reference error rate refers to the ratio of the error that can occur between the real-time input current and the real-time output current, and is formed by the operator's presetting and storage to form the reference error rate. The reference error range refers to the reference range in which the error can occur between the real-time input current and the real-time output current. The error range is determined by calculating the product of the real-time input current and the reference error rate and combining it with the real-time input current as the reference error range, so as to facilitate subsequent analysis. In this embodiment, the reference error rate can be 10%, and the reference error range is 10% of the real-time input current.

[0110] Step S102: determining the presence of the range extender according to the real-time output current, the real-time input current and the reference error range.

[0111] The presence of the range extender is determined by calculating and analyzing the real-time output current, real-time input current and benchmark error range, which facilitates subsequent verification of the non-original situation of the range extender.

[0112] Step S103: When there is a range extender in the car, the car controller is controlled to output preset encrypted information to the range extender.

[0113] Encrypted information refers to the information encrypted by the operator to verify whether the range extender is original. It is pre-set and stored by the operator. When there is a range extender in the car, it means that the non-original situation of the range extender can be verified, and the car controller is controlled to output the encrypted information to the range extender for verification.

[0114] Step S104: Obtain the decryption algorithm corresponding to the original range extender.

[0115] The decryption algorithm refers to the algorithm corresponding to the decryption of encrypted information by the original range extender. It is pre-set by the operator in the original range extender and the algorithm corresponding to the decryption of encrypted information is used as the decryption algorithm to facilitate subsequent analysis.

[0116] Step S105: After the range extender receives the encrypted information, the decrypted information is determined based on the decryption algorithm and the encrypted information.

[0117] Decrypted information refers to the information corresponding to the encrypted information after being decrypted by the decryption algorithm. When the range extender receives the encrypted information, the encrypted information is decrypted by the decryption algorithm in the range extender to obtain the decrypted information, thereby facilitating subsequent analysis.

[0118] Step S106: Determine whether the vehicle controller receives the decrypted information within the preset reference receiving times. If yes, jump to step S107. If no, jump to step S108.

[0119] The reference reception times refer to the maximum number of times the vehicle controller receives decrypted information, which is set and stored by the operator in advance. By judging whether the vehicle controller receives decrypted information within the reference reception times, it can be judged whether the range extender is original.

[0120] In this embodiment, the benchmark reception number is CNT_UN_MAX frames, and CNT_UN_MAX can be 10. The communication path between the vehicle controller and the range extender is the CAN bus. When there is a range extender in the car, the vehicle controller will send an encrypted frame on the CAN bus. The range extender will decrypt the encrypted frame after receiving it, calculate the decrypted content, and respond on the CAN bus. When the vehicle controller receives the response, it means that the range extender is an original authorized part, and there is no need to shut down the car for a fault. When the range extender exists, the encrypted frame will continue to be sent, and when the vehicle controller does not receive a decryption response in consecutive CNT_UN_MAX frames, it is considered that the range extender is a non-original authorized part, and an alarm is issued to stop the use of the range extender, and the driver is warned to stop the car.

[0121] Step S107: Re-jump to execute step S100.

[0122] When the vehicle controller receives the decrypted information within the reference receiving times, it indicates that the range extender is an original part, and the process jumps to step S100 again.

[0123] Step S108: If not received, the abnormal situation of the range extender not being original is formed into a warning prompt information, and the warning prompt information is output to a display terminal preset on the car.

[0124] Warning prompt information refers to information used to warn about the use of non-original range extenders in hybrid new energy vehicles and abnormal parameters during operation. When the vehicle controller does not receive decrypted information within the benchmark reception number, it means that the range extender is a non-original part. The abnormal situation corresponding to the non-original range extender is used as warning prompt information. The display terminal refers to a display screen used to display the corresponding parameter information of the hybrid new energy vehicle. By outputting the warning prompt information to the display terminal for warning parking, the service life of the battery pack and the safety of the hybrid new energy vehicle caused by the non-original range extender are reduced, thereby improving the safety of the hybrid new energy vehicle.

[0125] exist Figure 1 In step S102 shown in the figure, in order to further ensure the rationality of the method for determining the existence of the range extender, it is necessary to further analyze and calculate the method for determining the existence of the range extender separately, specifically by Figure 2 The steps shown are explained in detail.

[0126] Reference Figure 2 , Method for determining the presence of a range extender:

[0127] Step S200: Calculate the difference between the real-time output current and the real-time input current and use it as the current error value.

[0128] The current error value refers to the error value between the real-time output current and the real-time input current. By calculating the difference between the real-time output current and the real-time input current and using it as the current error value, subsequent analysis is facilitated.

[0129] Step S201: simultaneously determine whether the real-time output current is consistent with the real-time input current and whether the current error value is greater than the reference error range. If yes, jump to step S202. If no, jump to step S203.

[0130] By simultaneously judging whether the real-time output current is consistent with the real-time input current and whether the current error value is greater than the reference error range, it is possible to judge whether the range extender exists.

[0131] Step S202: If the real-time output current is consistent with the real-time input current and the current error value is not greater than the reference error range, then the number of times the current error value occurs is obtained.

[0132] The number of errors refers to the number of times the current error value appears. When the real-time output current is consistent with the real-time input current and the current error value is not greater than the benchmark error range, it means that the range extender does not exist. The number of times corresponding to the current error value is detected by the current sensor preset on the battery pack and the vehicle controller is used as the number of errors, which is convenient for subsequent analysis.

[0133] Step S203: determining a reference number of times according to whether the real-time input current falls within a preset reference detection range.

[0134] The reference detection range refers to the reference range in which the current sensors on the battery pack and the vehicle controller can detect current, which is set and stored in advance by the operator. The reference times refer to the reference times that the current error value can appear on the battery pack and the vehicle controller, which is determined by the real-time input current falling within the preset reference detection range, so as to facilitate subsequent analysis.

[0135] Step S204: If and only if the error number is consistent with the reference number, the range extender in the vehicle is not started or does not exist.

[0136] When the error times are inconsistent with the benchmark times, it indicates that there is an abnormality in the output current of the battery pack or the vehicle controller. When the error times are consistent with the benchmark times, it indicates that there is no abnormality in the output current of the battery pack or the vehicle controller, and it is known that the range extender in the vehicle is not started or does not exist.

[0137] Step S205: If the real-time output current is inconsistent with the real-time input current or the current error value is greater than the reference error range, it is determined that a range extender is present on the vehicle.

[0138] When the real-time output current is inconsistent with the real-time input current or the current error value is greater than the benchmark error range, there are three situations: When the real-time output current is inconsistent with the real-time input current and the current error value is greater than the benchmark error range, it means that there is no abnormality in the output current of the battery pack or the vehicle controller, and it is determined that there is a range extender on the vehicle.

[0139] When the real-time output current is consistent with the real-time input current and the current error value is greater than the reference error range, it indicates that there is an abnormality in the output current of the battery pack or the vehicle controller.

[0140] When the real-time output current is inconsistent with the real-time input current and the current error value is not greater than the reference error range, it indicates that there is an abnormality in the output current of the battery pack or the vehicle controller. In this case, a warning message of the abnormality output by the battery pack or the vehicle controller will be output to prompt the driver to stop the vehicle for repairs.

[0141] exist Figure 2 In step S204 shown, in order to further ensure the rationality of the specific steps before the range extender in the car is not started or does not exist, it is necessary to perform further separate analysis and calculation on the specific steps before the range extender in the car is not started or does not exist, which is specifically described in detail through the following steps.

[0142] It also includes specific steps before the range extender is not started or does not exist in the car:

[0143] Step S300: Obtaining a reference number range corresponding to a detection error device preset in the vehicle.

[0144] The error detection device refers to a current sensor used to detect the current error. The error detection device is installed on the battery pack and the vehicle controller. The reference number range refers to the reference range of the number of times the error detection device can detect the current. The reference number range is formed by the operator through manual setting and storage in advance.

[0145] Step S301: Determine whether the real-time input current falls within the reference detection range. If yes, jump to step S302. If no, jump to step S303.

[0146] By judging whether the real-time input current falls within the reference detection range, the value corresponding to the reference number can be determined.

[0147] Step S302: Calculate and determine a new reference number based on the difference between the maximum value of the reference detection range and the maximum value of the reference number range, and continue to determine the consistency between the error number and the reference number.

[0148] When the real-time input current falls within the reference detection range, the parameter obtained by analyzing and calculating the quotient between the difference between the maximum values ​​of the reference detection range and the difference between the maximum values ​​of the reference times range is used as the reference times. In this embodiment, the preset current calculation formula calculates the corresponding value as the reference times.

[0149] The current calculation formula is: K=(I max -I min ) / (CNT max -0), CNT = I2 / K, K is the coefficient preset by the operator. The maximum value of the reference detection range is I max , the minimum value is I min , the real-time input current is I2, and the maximum value of the reference frequency range is CNT max , the minimum value is 0.

[0150] For example, when I max =100,I min =10, CNT=3000, K=(100-10) / (CNT max -0), 3000=I2 / K.

[0151] Step S303: Calculate the difference between the real-time input current and the end value of the reference detection range and use it as the current deviation value.

[0152] The current deviation value refers to the deviation value between the real-time input current and the current corresponding to the reference detection range. When the real-time input current does not fall within the reference detection range, the difference between the real-time input current and the end value of the reference detection range is calculated and used as the current deviation value, which facilitates subsequent analysis.

[0153] Step S304: Determine whether the current deviation value is a positive value. If yes, jump to step S305. If no, jump to step S306.

[0154] By judging whether the current deviation value is a positive value, it is judged whether the real-time input current is greater than the reference detection range.

[0155] Step S305: taking the maximum end value of the reference number range as the new reference number and re-determining whether the error number is consistent with the reference number.

[0156] When the current deviation value is positive, it means that the real-time input current is greater than the reference detection range, and the maximum end value of the reference number range is used as the new reference number and the process jumps to execute step S204 again.

[0157] Step S306: Determine that there is no abnormality in the real-time input current or that there is no range extender in the vehicle based on the consistency between the reference number and the minimum end value of the reference number range.

[0158] When the current deviation value is not positive, it means that the real-time input current is less than the benchmark detection range, then it is determined whether the benchmark times are consistent with the minimum end value of the benchmark times range. When the benchmark times are consistent with the minimum end value of the benchmark times range, it means that there is no abnormality in the real-time input current of the vehicle controller and there is no range extender in the vehicle. When the benchmark times are inconsistent with the minimum end value of the benchmark times range, there is an abnormality in the real-time input current of the vehicle controller and it is not easy to determine whether a range extender exists.

[0159] exist Figure 1 In step S103 shown, in order to further ensure the rationality of the specific steps before the vehicle controller is controlled to output the preset encrypted information to the range extender, it is necessary to perform further separate analysis and calculation on the specific steps before the vehicle controller is controlled to output the preset encrypted information to the range extender, which is specifically described in detail through the following steps.

[0160] It also includes specific steps before controlling the vehicle controller to output preset encrypted information to the range extender:

[0161] Step S400: Based on the automobile controller, the preset reference data is continuously output to a testing device for verifying whether the automobile controller has output abnormality.

[0162] The inspection device refers to a device used to inspect whether there is an output abnormality in the automobile controller. The inspection device establishes communication with the automobile controller. The reference data refers to the data corresponding to the output of the automobile controller to the inspection device, which is pre-set and stored by the operator.

[0163] Step S401: Determine the response data corresponding to the inspection device according to the reference data.

[0164] Response data refers to the data that the inspection device continuously responds to the vehicle controller. The data of the numerical value formed by the output parameters of the inspection device is determined by using the data of the numerical value corresponding to the reference data and used as the response data, thereby facilitating subsequent analysis.

[0165] Step S402: Determine whether the data received by the vehicle controller is the response data corresponding to the reference data. If not, jump to step S403. If yes, jump to step S404.

[0166] By judging whether the data received by the automobile controller is the response data corresponding to the reference data, the abnormal situation of the automobile controller is determined.

[0167] In this embodiment, when the vehicle controller continuously outputs 1 to the inspection device, the inspection device continuously outputs 1 to the vehicle controller after receiving data. When there is an abnormality in the communication path between the vehicle controller and the inspection device, the inspection device does not receive data and continuously outputs empty data to the vehicle controller.

[0168] Step S403: If the data received by the vehicle controller is not the response data corresponding to the reference data, abnormal prompt information is determined based on the situation of the communication path of the vehicle controller and output to the display terminal as early warning prompt information.

[0169] Abnormal prompt information refers to prompt information of abnormality in the vehicle controller. When the data received by the vehicle controller is not the response data corresponding to the reference data, it indicates that there is an abnormality in the vehicle controller. The abnormality in the communication path of the vehicle controller is used as abnormal prompt information, and the abnormal prompt information is used as early warning prompt information and output to the display terminal, thereby prompting the driver of the abnormality in the vehicle controller, thereby improving the accuracy of verifying that the range extender is not original, and thereby improving the safety of hybrid new energy vehicles.

[0170] Step S404: If the data received by the vehicle controller is response data corresponding to the reference data, the communication path of the vehicle controller is switched and the encrypted information is continuously output to the range extender.

[0171] When the data received by the vehicle controller is the response data corresponding to the reference data, it indicates that there is no abnormality in the vehicle controller, and the communication path of the vehicle controller is switched, and the encrypted information is continuously output to the range extender.

[0172] exist Figure 1 In the step S108 shown, in order to further ensure the rationality of the specific steps before the warning prompt information is output to the display terminal preset on the car, it is necessary to perform further separate analysis and calculation on the specific steps before the warning prompt information is output to the display terminal preset on the car, which is explained in detail through the steps shown below.

[0173] The invention also includes the following specific steps before outputting the warning prompt information to a display terminal preset on the vehicle:

[0174] Step S500: Calculate the difference between the real-time input current and the real-time output current and use it as the extended-range output current corresponding to the range extender.

[0175] The extended-range output current refers to the current output by the range extender. When the range extender is in use, the difference between the real-time input current and the real-time output current is calculated and used as the extended-range output current corresponding to the range extender, which facilitates subsequent calculations.

[0176] Step S501: Obtain the real-time power level of the battery pack and the fuel consumption per unit time.

[0177] Real-time power refers to the real-time power of the battery pack. The on-board battery management system preset on the hybrid new energy vehicle can detect the total power of the battery pack in real time. Fuel consumption refers to the volume of fuel burned by the range extender per unit time. The liquid density sensor preset on the range extender detects the mass and concentration of the fuel per unit time and calculates the volume of the fuel as the fuel consumption.

[0178] Step S502: Calculate and determine the actual operating time and the extended-range operating time according to the real-time power, the real-time output current and the extended-range output current.

[0179] The actual operating time refers to the actual operating time that a hybrid new energy vehicle can use a range extender. The extended-range operating time refers to the time that a hybrid new energy vehicle can continue to operate when using a range extender. The actual operating time is calculated by calculating the quotient of the real-time power and the real-time output current as the real-time operating time, the product of the real-time operating time and the extended-range output current as the total current output by the range extender, the quotient of the total current output by the range extender and the real-time output current as the extended-range operating time, and finally the sum of the extended-range operating time and the real-time operating time as the actual operating time, so as to facilitate subsequent analysis.

[0180] Step S503: Match the current speed from a preset driving database based on the real-time input current.

[0181] The current speed refers to the current speed of the hybrid new energy vehicle when using the range extender. The current speed is retrieved from the driving database through real-time input current. The driving database pre-stores the speed of the hybrid new energy vehicle corresponding to different input currents on the vehicle controller, which will not be described in detail here.

[0182] Step S504: Calculate the product of the actual running time and the current speed and use it as the actual cruising distance.

[0183] The actual cruising range refers to the distance that a hybrid new energy vehicle can actually travel when using a range extender. The actual cruising range is calculated by multiplying the actual running time by the current speed, which is used as the actual cruising distance to facilitate subsequent analysis.

[0184] Step S505: Calculate the product of the extended range operation time and the fuel consumption and use it as the total fuel consumption.

[0185] The total fuel consumption refers to the total amount of fuel consumed when a hybrid new energy vehicle uses a range extender. The product of the extended range operating time and the fuel consumption is calculated and used as the total fuel consumption, which facilitates subsequent analysis.

[0186] Step S506: taking the current speed, actual cruising distance and total fuel consumption as actual operating parameters.

[0187] The actual operating parameters refer to the speed, cruising distance, total fuel consumption and other parameters corresponding to the hybrid new energy vehicle when using the range extender. The parameters corresponding to the current speed, actual cruising distance and total fuel consumption are used as the actual operating parameters.

[0188] Step S507: determining abnormal parameters of corresponding parameters in the reference operating parameters according to the real-time operating parameters and the preset reference operating parameters.

[0189] The reference operating parameters refer to the reference parameters that hybrid new energy vehicles can operate when using the original range extender, which are set and stored in advance by the operator. Abnormal parameters refer to the parameters corresponding to the abnormalities in the real-time operating parameters, and the parameters corresponding to the abnormalities are compared with the parameters corresponding to the reference operating parameters as abnormal parameters.

[0190] Step S508: based on the benchmark operating parameters, retrieve the allowable parameter range corresponding to each parameter in the benchmark operating parameters.

[0191] The allowable parameter range refers to the parameter range within which hybrid new energy vehicles can operate when using the original range extender. The allowable parameter range corresponding to each parameter is retrieved from the benchmark operating parameters as the allowable parameter range.

[0192] Step S509: If and only if the abnormal parameter does not fall within the allowable parameter range, the abnormal parameter is added to the early warning prompt information to form a new early warning prompt information and output it to the display terminal.

[0193] When the abnormal parameters fall within the allowable parameter range, it means that there is no abnormality in the corresponding operating parameters when the hybrid new energy vehicle uses the range extender, and the original condition of the range extender is re-detected. When the abnormal parameters do not fall within the allowable parameter range, it means that there is an abnormality in the corresponding operating parameters when the hybrid new energy vehicle uses the range extender, and the abnormal parameters are added to the early warning prompt information to form a new early warning prompt information and output it to the display terminal, so as to improve the accuracy of verifying that the range extender is not original by comparing the actual operating parameters with the benchmark operating parameters, thereby improving the safety of hybrid new energy vehicles.

[0194] exist Figure 1 In the step S101 shown, in order to further ensure the rationality of the specific steps before the warning prompt information is output to the display terminal preset on the car, it is necessary to perform further separate analysis and calculation on the specific steps before the warning prompt information is output to the display terminal preset on the car, which is specifically explained in detail through the steps shown below.

[0195] It also includes the specific steps before determining the baseline error range:

[0196] Step S600: Acquire the internal temperature value of the vehicle interior.

[0197] The internal temperature value refers to the temperature value corresponding to the battery pack and the vehicle controller inside the hybrid new energy vehicle. The parameters detected by the temperature sensor preset inside the hybrid new energy vehicle are used as the internal temperature value to facilitate subsequent analysis.

[0198] Step S601: Determine whether the internal temperature value falls within the preset reference temperature range. If yes, jump to step S602. If no, jump to step S603.

[0199] The reference temperature range refers to the normal temperature range corresponding to the input or output current of the battery pack and the vehicle controller, which is set and stored in advance by the operator. By judging whether the internal temperature value falls within the reference temperature range, it can be judged whether the temperature inside the hybrid new energy vehicle affects the current.

[0200] Step S602: Continue to jump to execute step S101.

[0201] When the internal temperature value falls within the reference temperature range, it means that the temperature inside the hybrid new energy vehicle will not affect the current, and the process continues to jump to step S101.

[0202] Step S603: Calculate the difference between the internal temperature value and the maximum value of the reference temperature range and use it as the temperature deviation value.

[0203] The temperature deviation value refers to the deviation between the internal temperature value and the maximum value of the reference temperature range. When the internal temperature value does not fall within the reference temperature range, it means that the temperature inside the hybrid new energy vehicle will affect the current. The difference between the internal temperature value and the maximum value of the reference temperature range is calculated and used as the temperature deviation value, which facilitates subsequent analysis.

[0204] Step S604: selecting a corresponding temperature storage device preset in the car from different preset temperature storage devices as the selected storage device according to the positive or negative condition of the temperature deviation value.

[0205] The temperature storage device refers to a tank device used to store temperature and adjust the internal temperature of a hybrid new energy vehicle. In this embodiment, the temperature storage device can be axially rotated to accurately collect or adjust the temperature at the location where the temperature is concentrated. The temperature storage device includes a temperature sensor, a heat insulation component with a movable opening, and a temperature control component corresponding to the temperature generated when power is turned on.

[0206] The thermal insulation component is installed on the side of the temperature storage device, and there are openings of the same size on the side wall of the temperature storage device and the thermal insulation component for the temperature storage device to adjust or collect the external temperature. The thermal insulation component can be axially rotated to make the remaining parts of the thermal insulation component insulate and seal the opening on the temperature storage device. When the temperature storage device needs to collect the temperature of the external environment, the thermal insulation component is rotated to make the temperature storage device correspond to the opening of the thermal insulation component, so that the temperature in the temperature storage device and the external temperature can be conducted through air circulation, thereby adjusting or collecting the temperature of the external environment.

[0207] The temperature control components are semiconductor heating fins and semiconductor cooling fins. Two temperature storage devices are installed, and the temperature in one temperature storage device is high temperature storage and is installed with a semiconductor heating fin, and the temperature in the other temperature storage device is low temperature storage and is installed with a semiconductor cooling fin.

[0208] The selected storage device refers to a temperature storage device that has been selected. When the temperature deviation value is a negative value, it means that the temperature inside the hybrid new energy vehicle is lower than the reference temperature range, and the temperature storage device with high temperature storage is used as the selected storage device. When the temperature deviation value is a positive value, it means that the temperature inside the hybrid new energy vehicle is higher than the reference temperature range, and the temperature storage device with low temperature storage is used as the selected storage device.

[0209] Step S605: Determine temperature control information according to the internal temperature value and the selected storage device.

[0210] The temperature control information refers to the control information for controlling the start of the selected storage device, which is combined by analyzing the parameters corresponding to the internal temperature value and used as the temperature control information corresponding to the selected storage device.

[0211] Step S606: Output the temperature control information to the selected storage device to improve the accuracy of the reference error range.

[0212] By outputting temperature control information to a selected storage device to improve the accuracy of the reference error range, the influence of the temperature around the current on the change of the current output is reduced, and the accuracy of knowing the existence of the range extender and the original factory situation through the current is improved, thereby improving the safety of hybrid new energy vehicles.

[0213] In step S605 shown above, in order to further ensure the rationality of the method for determining the temperature control information, it is necessary to perform further separate analysis and calculation on the method for determining the temperature control information, which is specifically described in detail through the following steps.

[0214] Method for determining temperature control information:

[0215] Step S700: obtaining the real-time storage temperature value and the manufacturing parameters of the automobile in the selected storage device.

[0216] The real-time storage temperature value refers to the real-time temperature in the selected storage device, and the parameters detected by the temperature sensor preset in the selected storage device are used as the real-time storage temperature value. The manufacturing parameters refer to the parameters corresponding to the battery pack and vehicle controller after the hybrid new energy vehicle is manufactured. The parameters obtained by querying the number of the corresponding device in the hybrid new energy vehicle are used as the manufacturing parameters.

[0217] Step S701: Retrieve actual resistance values ​​corresponding to the battery pack and the vehicle controller based on manufacturing parameters.

[0218] The actual resistance value refers to the actual resistance value corresponding to the battery pack and the vehicle controller in the hybrid new energy vehicle. By retrieving the resistance value corresponding to the battery pack and the vehicle controller from the manufacturing parameters as the actual resistance value, subsequent analysis is facilitated.

[0219] Step S702: Calculate the difference between the real-time stored temperature value and the internal temperature value and use it as the adjusted temperature value.

[0220] The adjusted temperature value refers to the temperature value that needs to be adjusted between the real-time stored temperature value and the internal temperature value, and the difference between the real-time stored temperature value and the internal temperature value is calculated and used as the adjusted temperature value.

[0221] Step S703: matching the conduction time from a preset temperature database based on the adjusted temperature value.

[0222] The conduction time refers to the conduction time of selecting a storage device to adjust the internal temperature of the hybrid new energy vehicle, and the conduction time is retrieved and matched from the temperature database by adjusting the temperature value. The temperature database pre-stores the conduction time corresponding to different temperatures that need to be adjusted, which will not be described in detail here.

[0223] Step S704: Calculate the product of the real-time input current, the conduction time, and the actual resistance value of the battery pack and use it as the battery temperature value.

[0224] The battery temperature value refers to the temperature value of the battery pack in a hybrid new energy vehicle. The battery temperature value is calculated by adding the product of the real-time input current, conduction time and the actual resistance value of the battery pack, which facilitates subsequent analysis.

[0225] Step S705: Calculate the product of the real-time output current, the conduction time, and the actual resistance value of the vehicle controller and use it as the controller temperature value.

[0226] The controller temperature value refers to the temperature value of the vehicle controller in the hybrid new energy vehicle. The controller temperature value is calculated by calculating the product of the real-time output current, conduction time and the actual resistance value of the vehicle controller, which is convenient for subsequent analysis.

[0227] Step S706: selecting the temperature value with the largest value as the actual generated temperature value according to the battery temperature value and the controller temperature value.

[0228] The actual temperature value refers to the temperature value actually generated in the hybrid new energy vehicle, and the temperature value with the largest value is selected from the battery temperature value and the controller temperature value as the actual temperature value.

[0229] In this embodiment, if the battery temperature value and the controller temperature value are not in operation and the temperature inside the car is below zero, when the battery temperature value is minus 5 degrees and the controller temperature value is minus 1 degree, the battery temperature value is selected as the actual generated temperature value.

[0230] Step S707: Match the conduction increase time from the temperature database based on the actual generated temperature value.

[0231] The conduction increase time refers to the time required to increase conduction when selecting a storage device to adjust the internal temperature of a hybrid new energy vehicle. The conduction increase time is retrieved and matched from a temperature database by actually generating a temperature value, thereby facilitating subsequent analysis.

[0232] Step S708: Calculate the sum of the conduction increase time and the conduction time and use it as the adjustment time, and use the adjustment time as the temperature control information.

[0233] The adjustment time refers to the time taken by the selected storage device after adjustment to adjust the internal temperature of the hybrid new energy vehicle. The sum of the conduction increase time and the conduction time is calculated as the adjustment time, and the numerical value corresponding to the adjustment time is used as the temperature control information. This can reduce the impact of changes in the ambient temperature on the current and improve the accuracy of the current passing through the current to know the existence of the range extender and the corresponding original factory situation.

[0234] In step S708 shown above, in order to further ensure the rationality of the specific steps after adjusting the time as the temperature control information, it is necessary to perform further separate analysis and calculation on the specific steps after adjusting the time as the temperature control information, which is explained in detail through the following steps.

[0235] Also included are specific steps after adjusting the time as temperature control information:

[0236] Step S800: matching the maximum conduction time from the temperature database based on the adjusted temperature value.

[0237] The maximum conduction time refers to the maximum time for selecting a storage device to adjust the internal temperature of the hybrid new energy vehicle. The maximum conduction time is retrieved from the temperature database by adjusting the temperature value, thereby facilitating subsequent analysis.

[0238] Step S801: Determine whether the maximum conduction time is less than the adjustment time. If not, jump to step S802. If yes, jump to step S803.

[0239] By judging whether the maximum conduction time is less than the adjustment time, it is judged whether the selected storage device can adjust the internal temperature of the hybrid new energy vehicle to within the reference temperature range.

[0240] Step S802: Continue to output temperature control information.

[0241] When the maximum conduction time is not less than the adjustment time, it means that the selected storage device can adjust the internal temperature of the hybrid new energy vehicle to within the reference temperature range, and the temperature control information continues to be output.

[0242] Step S803: Calculate the difference between the maximum conduction time and the adjusted time and use it as the remaining conduction time.

[0243] The remaining conduction time refers to the remaining conduction time required for the selected storage device to adjust the internal temperature of the hybrid new energy vehicle. When the maximum conduction time is less than the adjustment time, it means that the selected storage device cannot adjust the internal temperature of the hybrid new energy vehicle to within the reference temperature range. The difference between the maximum conduction time and the adjustment time is calculated and used as the remaining conduction time.

[0244] Step S804: matching the operating power corresponding to the temperature control component preset in the selected storage device from the temperature database based on the adjusted temperature value and the remaining conduction time.

[0245] The operating power refers to the power required to operate the temperature control component in the selected storage device, and the operating power is retrieved and matched from the temperature database by adjusting the temperature value and the remaining conduction time.

[0246] Step S805: adding the operating power to the temperature control information to form new temperature control information.

[0247] By adding the parameters corresponding to the operating power to the temperature control information to form new temperature control information, it is possible to continue to reduce the impact of changes in ambient temperature on current, and improve the accuracy of the current passing through the current to know the existence of the range extender and the corresponding original factory conditions.

[0248] In step S806 shown above, in order to further ensure the rationality of the specific steps after adjusting the time as the temperature control information, it is necessary to perform further separate analysis and calculation on the specific steps after adjusting the time as the temperature control information, which is explained in detail through the following steps.

[0249] It also includes the specific steps after forming new temperature control information:

[0250] Step S900: Acquire the external temperature value outside the vehicle.

[0251] The external temperature value refers to the environment outside the hybrid new energy vehicle, and is a parameter detected by a temperature sensor preset outside the hybrid new energy vehicle.

[0252] Step S901: Retrieve a reference temperature range based on specifications corresponding to different temperature storage devices.

[0253] The reference temperature range refers to the reference temperature range corresponding to the external temperature that is not easy to collect by the temperature storage device. By retrieving the corresponding reference temperature range from the specifications corresponding to different temperature storage devices, subsequent analysis is facilitated.

[0254] In this embodiment, when the environment outside the hybrid new energy vehicle is in a parking lot or in winter where the ambient temperature is lower than the reference temperature range, the low-temperature temperature storage device can collect the temperature of the external environment.

[0255] Step S902: If and only if the external temperature value does not fall within the reference temperature range, determine the temperature concentration location based on the external temperature value.

[0256] The temperature concentration position refers to the position where the external temperature values ​​are concentrated outside the hybrid new energy vehicle. When the external temperature value falls within the reference temperature range, it means that the temperature storage device cannot collect the external temperature. When the external temperature value does not fall within the reference temperature range, it means that the temperature storage device can collect the external temperature. The temperature concentration position is determined by combining the distribution of the external temperature values ​​around the hybrid new energy vehicle for analysis, which facilitates subsequent analysis.

[0257] Step S903: Calculate the difference between the external temperature value and the maximum value of the reference temperature range and use it as the changed temperature value.

[0258] The changed temperature value refers to the temperature value that needs to be changed between the external temperature value and the reference temperature range, and the difference between the external temperature value and the maximum value of the reference temperature range is calculated and used as the changed temperature value.

[0259] Step S904: selecting a corresponding temperature storage device from different temperature storage devices as a supplementary storage device according to the positive or negative condition of the changed temperature value.

[0260] The supplementary storage device refers to a temperature storage device that requires supplementary temperature. When the changed temperature value is a negative value, it means that the external temperature value is less than the minimum value of the reference temperature range, and the temperature storage device for low temperature storage is used as a supplementary storage device. When the changed temperature value is a positive value, it means that the external temperature value is greater than the maximum value of the reference temperature range, and the temperature storage device for high temperature storage is used as a supplementary storage device.

[0261] Step S905: Match the change time from the temperature database based on the change temperature value.

[0262] The change time refers to the time required to adjust the supplemental storage device after the change. The change time is matched from the temperature database by changing the temperature value, so as to facilitate subsequent analysis.

[0263] Step S906: Determine the moving position of the heat insulation component preset in the temperature storage device according to the temperature concentration position.

[0264] The moving position refers to the position where the insulation component in the temperature storage device needs to be moved. The temperature concentration position is used as the position of the insulation component opening to collect the temperature as the moving position, so as to facilitate subsequent analysis.

[0265] Step S907: The moving position and the change time are used as temperature adjustment information, and the temperature adjustment information is output to the supplementary storage device so that the temperature in the temperature storage device is within the reference temperature range.

[0266] Temperature adjustment information refers to control information for adjusting a temperature storage device. The temperature adjustment information is obtained by combining the moving position with the parameters corresponding to the change time, and outputting the temperature adjustment information to a supplementary storage device so that the temperature in the temperature storage device is within a reference temperature range. The temperature in the temperature storage device can be naturally supplemented by the external environment, thereby reducing energy consumption when the temperature storage device outputs the temperature.

[0267] Based on the same inventive concept, an embodiment of the present invention provides a real-time anti-modification system for a hybrid new energy vehicle range extender, comprising:

[0268] The acquisition module is used to obtain real-time output current, real-time input current, decryption algorithm, error times, reference times range, real-time power, fuel consumption, internal temperature value, real-time storage temperature value, manufacturing parameters, real-time temperature value and external temperature value.

[0269] A memory is used to store a program of a real-time anti-modification method for a hybrid new energy vehicle range extender.

[0270] The program in the processor and the memory can be loaded and executed by the processor to realize a real-time anti-modification method for a hybrid new energy vehicle range extender.

[0271] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device and unit described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0272] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A real-time anti-modification method for a hybrid new energy vehicle range extender, characterized in that: include: Obtain the real-time output current of the battery pack in the car and the real-time input current of the car controller; Determine the reference error range according to the real-time input current and the preset reference error rate; Determine the presence of the range extender based on the real-time output current, the real-time input current, and the reference error range; When there is a range extender in the car, the car controller is controlled to output preset encrypted information to the range extender; Obtain the decryption algorithm corresponding to the original range extender; After the range extender receives the encrypted information, the decrypted information is determined based on the decryption algorithm and the encrypted information; Determining whether the vehicle controller receives the decrypted information within a preset reference receiving number of times; If received, the real-time output current and the real-time input current are re-acquired; If not received, the abnormal situation of the range extender not being the original one is formed into a warning prompt information, and the warning prompt information is output to the display terminal preset on the car; Method for determining the presence of a range extender: Calculate the difference between the real-time output current and the real-time input current and use it as the current error value; At the same time, determine whether the real-time output current is consistent with the real-time input current and whether the current error value is greater than the reference error range; If the real-time output current is consistent with the real-time input current and the current error value is not greater than the reference error range, the number of times the current error value occurs is obtained; Determine the reference number according to whether the real-time input current falls within a preset reference detection range; If and only if the error times are consistent with the reference times, the range extender in the vehicle is not started or does not exist; If the real-time output current is inconsistent with the real-time input current or the current error value is greater than the reference error range, it is determined that there is a range extender on the vehicle.

2. A real-time anti-modification method for a hybrid new energy vehicle range extender according to claim 1, characterized in that: It also includes specific steps before the range extender is not started or does not exist in the car: Obtaining a reference frequency range corresponding to a detection error device preset in the vehicle; Determine whether the real-time input current falls within the reference detection range; If it falls within, a new benchmark number is determined based on the difference between the maximum value of the benchmark detection range and the maximum value of the benchmark number range, and the consistency between the error number and the benchmark number is continued to be determined; If it does not fall within the range, the difference between the real-time input current and the end value of the reference detection range is calculated and used as the current deviation value; Determine whether the current deviation value is positive; If yes, the maximum end value of the reference number range is used as the new reference number and the error number is re-judged to see whether it is consistent with the reference number; If not, then the consistency between the benchmark times and the minimum end value of the benchmark times range is used to determine that there is no abnormality in the real-time input current or that there is no range extender in the vehicle.

3. The real-time anti-modification method for a hybrid new energy vehicle range extender according to claim 1 is characterized in that: It also includes specific steps before controlling the vehicle controller to output preset encrypted information to the range extender: Based on the automobile controller, the preset reference data is continuously output to a testing device for verifying that the automobile controller has output abnormality; Determining response data corresponding to the inspection device according to the reference data; Determine whether the data received by the vehicle controller is the response data corresponding to the reference data; If the data received by the vehicle controller is not the response data corresponding to the reference data, abnormal prompt information is determined based on the situation of the communication path of the vehicle controller and output to the display terminal as early warning prompt information; If the data received by the vehicle controller is response data corresponding to the reference data, the communication path of the vehicle controller is switched and the encrypted information is continuously output to the range extender.

4. A real-time anti-modification method for a hybrid new energy vehicle range extender according to claim 1, characterized in that: The invention also includes the following specific steps before outputting the warning prompt information to a display terminal preset on the vehicle: Calculate the difference between the real-time input current and the real-time output current and use it as the extended-range output current corresponding to the range extender; Obtain the real-time power of the battery pack and the fuel consumption per unit time; The actual operation time and the extended-range operation time are calculated and determined based on the real-time power, the real-time output current and the extended-range output current; Match the current speed from the preset driving database based on the real-time input current; Calculate the product of the actual running time and the current speed as the actual cruising distance; Calculate the product of the extended range operation time and the fuel consumption and use it as the total fuel consumption; The current speed, actual cruising distance and total fuel consumption are used as actual operating parameters; Determine abnormal parameters of corresponding parameters in the benchmark operating parameters according to the real-time operating parameters and the preset benchmark operating parameters; Based on the benchmark operating parameters, the allowable parameter range corresponding to each parameter in the benchmark operating parameters is retrieved; If and only if the abnormal parameter does not fall within the allowable parameter range, the abnormal parameter is added to the early warning prompt information to form a new early warning prompt information and output it to the display terminal.

5. The real-time anti-modification method for a hybrid new energy vehicle range extender according to claim 1 is characterized in that: It also includes the specific steps before determining the baseline error range: Get the internal temperature value of the car's interior; Determine whether the internal temperature value falls within a preset reference temperature range; If it falls within, continue to determine the benchmark error range; If it does not fall within the range, the difference between the internal temperature value and the maximum value of the reference temperature range is calculated and used as the temperature deviation value; According to the positive or negative condition of the temperature deviation value, a corresponding temperature storage device preset in the car is selected from different preset temperature storage devices as the selected storage device; Determine temperature control information according to the internal temperature value and the selected storage device; The temperature control information is output to a selected storage device to improve the accuracy of the reference error range.

6. A real-time anti-modification system for a hybrid new energy vehicle range extender, characterized in that: include: An acquisition module is used to acquire real-time output current, real-time input current, decryption algorithm, error times, reference times range, real-time power, fuel consumption, internal temperature value, real-time storage temperature value, manufacturing parameters and external temperature value; A memory for storing a program of a real-time anti-modification method for a hybrid new energy vehicle range extender according to any one of claims 1 to 5; The program in the processor memory can be loaded and executed by the processor to implement a real-time anti-modification method for a hybrid new energy vehicle range extender as described in any one of claims 1 to 5.

Images