Electronic shift control method and related devices

Abstract

The application discloses an electronic gear shifting control method, comprising: when the vehicle is powered off, controlling the electronic gear shifter to perform a gear shifting operation to a parking gear; when the vehicle is electronically unlocked, performing anti-theft authentication through a vehicle electronic control system; when the authentication is passed, controlling the electronic gear shifter to perform a gear shifting operation; and when the authentication is not passed, sending a gear position maintaining instruction to the electronic gear shifter. By controlling the electronic gear shifter to perform a gear shifting operation to a parking gear when the vehicle is parked, performing anti-theft authentication through a vehicle electronic control system when the vehicle is started and electronically unlocked, controlling the electronic gear shifter to perform a gear shifting operation when the authentication is passed, and sending a gear position maintaining instruction to the electronic gear shifter when the authentication is not passed, a vehicle anti-theft function based on the electronic gear shifter is realized, traditional mechanical anti-theft such as a steering column anti-theft lock is avoided, and the overall vehicle cost is reduced. The application also discloses an electronic gear shifting control device, a computing device and a computer readable storage medium, which have the above beneficial effects.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle control, in particular to an electronic gear shifting control method, an electronic gear shifting control device, a computing device and a computer readable storage medium. BACKGROUND

[0002] The automobile anti-theft device is a device installed on the vehicle, which is connected with accessories or circuits on the vehicle to prevent the vehicle from being stolen or increase the difficulty of stealing the vehicle.

[0003] In related technologies, the automobile anti-theft device is mainly mechanical anti-theft device. The mechanical anti-theft system mainly relies on important components such as lock clutch, brake, throttle, steering wheel or transmission gear to achieve the purpose of anti-theft. However, it is troublesome to disassemble and assemble every time, and it needs to be placed in a place when not in use, which is not convenient, and the security is not good. It cannot resist heavy theft tools, and cannot send alarm information when being violated, which reduces the availability of the anti-theft device.

[0004] Therefore, how to reduce the cost of the vehicle anti-theft device while maintaining the vehicle anti-theft function is the key problem for the person skilled in the art. SUMMARY

[0005] The purpose of the present application is to provide an electronic gear shifting control method, an electronic gear shifting control device, a computing device and a computer readable storage medium, which can reduce the cost of the vehicle anti-theft device while maintaining the vehicle anti-theft function, and integrate the automatic parking function.

[0006] To solve the above technical problems, the present application provides an electronic gear shifting control method, comprising:

[0007] When the vehicle is powered off, the electronic gear shifter is controlled to perform gear shifting operation to the parking gear;

[0008] When the vehicle is electronically unlocked, the vehicle electronic control system is used for anti-theft authentication;

[0009] When the authentication is passed, the electronic gear shifter is controlled to perform gear shifting operation;

[0010] When the authentication is not passed, a gear position keeping instruction is sent to the electronic gear shifter.

[0011] Optionally, when the vehicle is powered off, the electronic gear shifter is controlled to perform gear shifting operation to the parking gear, comprising:

[0012] When the vehicle is powered off, it is judged whether the current gear position is the parking gear;

[0013] If not, the electronic gear shifter is controlled to perform gear shifting operation to the parking gear;

[0014] When the current gear is a parking gear, a power-off operation is performed.

[0015] Optionally, when the vehicle is electronically unlocked, anti-theft authentication is performed by the vehicle electronic control system, including:

[0016] When the instruction of the start switch is received, key authentication is performed;

[0017] When the key authentication is passed, the power mode is switched to the on state;

[0018] Anti-theft authentication is performed by the body domain controller and the gear shifting system.

[0019] Optionally, it further includes:

[0020] The automatic parking controller performs handshake response with the electronic gear shifter;

[0021] When the handshake response is passed, the automatic parking controller sends a control request signal to the electronic gear shifter, so that the electronic gear shifter judges whether to accept the control request signal based on preset conditions;

[0022] When the electronic gear shifter sends a controlled signal, the automatic parking switch is activated, and the parking space is searched through the radar device;

[0023] When the parking space is confirmed, the vehicle speed is reduced to a stop speed.

[0024] Optionally, the automatic parking controller performs handshake response with the electronic gear shifter, including:

[0025] The automatic parking controller checks the control message according to a preset period;

[0026] When the check is passed, the automatic parking controller performs handshake pairing with the electronic gear shifter;

[0027] When the handshake pairing is completed, communication fault detection is performed according to a preset detection period;

[0028] When the communication fault detection is passed, a response time delay requirement signal is sent.

[0029] Optionally, when the handshake response is passed, the automatic parking controller sends a control request signal to the electronic gear shifter, so that the electronic gear shifter judges whether to accept the control request signal based on preset conditions. Including:

[0030] When the handshake response is passed, the automatic parking controller sends a control request and a target gear request to the electronic gear shifter;

[0031] The electronic gear shifter judges whether to accept the control request signal based on preset conditions;

[0032] If the electronic gear shifter accepts the control request signal, the target gear request is converted into a target gear signal, and a gear shifting operation is performed based on the target gear signal.

[0033] Optionally, the electronic gear shifter further comprises:

[0034] When the electronic gear shifter sends a gear shifter parking exit failure signal to the automatic parking controller, the electronic gear shifter sends a brake instruction to the brake system and displays an automatic parking failure through an instrument.

[0035] The application also provides an electronic gear shift control device, comprising:

[0036] A power-off operation module is configured to control the electronic gear shifter to perform a gear shifting operation to a parking gear when the vehicle is powered off.

[0037] A theft prevention authentication module is configured to perform theft prevention authentication through a vehicle electronic control system when the vehicle is electronically unlocked, control the electronic gear shifter to perform a gear shifting operation when the authentication is passed, and send a gear position holding instruction to the electronic gear shifter when the authentication is not passed.

[0038] The application also provides a computing device, comprising:

[0039] A memory is configured to store a computer program.

[0040] A processor is configured to implement the steps of the electronic gear shift control method as described above when executing the computer program.

[0041] The application also provides a computer readable storage medium having a computer program stored thereon, wherein the computer program is executed by a processor to implement the steps of the electronic gear shift control method as described above.

[0042] The electronic gear shift control method provided by the application comprises: controlling the electronic gear shifter to perform a gear shifting operation to a parking gear when the vehicle is powered off; performing theft prevention authentication through a vehicle electronic control system when the vehicle is electronically unlocked; controlling the electronic gear shifter to perform a gear shifting operation when the authentication is passed; and sending a gear position holding instruction to the electronic gear shifter when the authentication is not passed.

[0043] By controlling the electronic gear shifter to perform a gear shifting operation to a parking gear when the vehicle is parked, performing theft prevention authentication through a vehicle electronic control system when the vehicle is electronically unlocked, controlling the electronic gear shifter to perform a gear shifting operation when the authentication is passed, and sending a gear position holding instruction to the electronic gear shifter when the authentication is not passed, the vehicle theft prevention function based on the electronic gear shifter is realized, the traditional mechanical theft prevention such as a steering column theft lock is avoided, and the overall vehicle cost is reduced.

[0044] The application further provides an electronic gear shifting control device, a computing device and a computer readable storage medium, which have the above beneficial effects and will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of the provided drawings.

[0046] Figure 1 A flow chart of an electronic gear shifting control method provided by an embodiment of the present application;

[0047] Figure 2 A power-down flow chart of an electronic gear shifting control method provided by an embodiment of the present application;

[0048] Figure 3 A power-up flow chart of an electronic gear shifting control method provided by an embodiment of the present application;

[0049] Figure 4 A structural schematic diagram of an automatic parking controller provided by an embodiment of the present application;

[0050] Figure 5 A first self-diagnosis flow chart of an electronic gear shifting control method provided by an embodiment of the present application;

[0051] Figure 6 A second self-diagnosis flow chart of an electronic gear shifting control method provided by an embodiment of the present application;

[0052] Figure 7 A structural schematic diagram of an electronic gear shifting control device provided by an embodiment of the present application;

[0053] Figure 8 A structural schematic diagram of a computing device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0054] The core of the present application is to provide an electronic gear shifting control method, an electronic gear shifting control device, a computing device and a computer readable storage medium, which can reduce the cost of a vehicle anti-theft device while maintaining the vehicle anti-theft function, and integrate an automatic parking function.

[0055] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0056] In the related art, the automobile anti-theft device mainly adopts a mechanical anti-theft device. The mechanical anti-theft system mainly relies on important components such as a lock clutch, a brake, a throttle, a steering wheel or a transmission gear to operate the automobile to achieve the anti-theft purpose. However, it is troublesome to disassemble and assemble each time, and it needs to be placed in a place when not in use, which is not convenient, and the security is not good. It cannot resist heavy theft tools, and cannot send an alarm information when being violated, which reduces the availability of the anti-theft device.

[0057] Therefore, the present application provides an electronic gear shifting control method. When the vehicle is powered off, the electronic gear shifter is controlled to perform a gear shifting operation to a parking gear. When the vehicle is powered on and the vehicle is electronically unlocked, the vehicle control system performs anti-theft authentication. When the authentication is passed, the electronic gear shifter is controlled to perform a gear shifting operation. When the authentication is not passed, a gear position holding instruction is sent to the electronic gear shifter. The vehicle anti-theft function based on the electronic gear shifter is realized, the traditional mechanical anti-theft such as the steering column anti-theft lock is avoided, and the overall vehicle cost is reduced.

[0058] The electronic gear shifting control method provided by the present application will be described below through an embodiment.

[0059] Please refer to Figure 1 , Figure 1 The flowchart of the electronic gear shifting control method provided by the present application is shown in the figure.

[0060] In this embodiment, the method can include:

[0061] S101, when the vehicle is powered off, the electronic gear shifter is controlled to perform a gear shifting operation to a parking gear;

[0062] This step aims to control the electronic gear shifter to perform a gear shifting operation to a parking gear when the vehicle is powered off. Wherein, it can be judged whether the current gear position is a parking gear first, and if so, it can be switched to the parking gear. Until the parking gear is switched, the control system of the vehicle is powered off to realize parking.

[0063] Further, this step can include:

[0064] Step 1, when the vehicle is powered off, it is judged whether the current gear position is a parking gear;

[0065] Step 2, if no, control the electronic gear shifter to perform a gear shifting operation to the parking gear;

[0066] Step 3, when the current gear is the parking gear, perform a power-off operation.

[0067] It can be seen that the optional solution mainly illustrates how to perform the power-off operation. The optional solution mainly judges whether the current gear is the parking gear when the vehicle is powered off; if no, controls the electronic gear shifter to perform a gear shifting operation to the parking gear; and when the current gear is the parking gear, performs a power-off operation.

[0068] S102, when the vehicle is electronically unlocked, perform anti-theft authentication through the vehicle electronic control system;

[0069] On the basis of S101, the step aims to perform anti-theft authentication through the vehicle electronic control system when the vehicle is electronically unlocked. Among them, key authentication can be performed first, and when the key authentication is passed, the power supply mode is switched to the on state, and then the anti-theft authentication is performed through the vehicle electronic control system.

[0070] Further, the step can include:

[0071] Step 1, when receiving an instruction of the start switch, perform key authentication;

[0072] Step 2, when the key authentication is passed, switch the power supply mode to the on state;

[0073] Step 3, perform anti-theft authentication through the body domain controller and the gear shifting system.

[0074] It can be seen that the optional solution mainly illustrates how to perform the authentication. In the optional solution, when receiving an instruction of the start switch, perform key authentication; when the key authentication is passed, switch the power supply mode to the on state; and perform anti-theft authentication through the body domain controller and the gear shifting system.

[0075] S103, when the authentication is passed, control the electronic gear shifter to perform a gear shifting operation;

[0076] On the basis of S102, the step aims to control the electronic gear shifter to perform a gear shifting operation when the authentication is passed.

[0077] S104, when the authentication is not passed, send a gear position holding instruction to the electronic gear shifter.

[0078] On the basis of S102, the step aims to send a gear position holding instruction to the electronic gear shifter when the authentication is not passed.

[0079] It can be seen that, in the embodiment, the electronic gear shifter is controlled to perform gear shifting operation to the parking gear when parking, and the vehicle electronic control system is used to perform anti-theft authentication when starting the vehicle and electronically unlocking the vehicle. When the authentication is passed, the electronic gear shifter is controlled to perform gear shifting operation. When the authentication is not passed, a gear position keeping instruction is sent to the electronic gear shifter, so as to realize the vehicle anti-theft function based on the electronic gear shifter, avoid the mechanical anti-theft such as the traditional steering column anti-theft lock, and reduce the vehicle cost.

[0080] The electronic gear shifting control method provided by the application is further described through another specific embodiment.

[0081] In the embodiment, the method can include:

[0082] S201, the automatic parking controller performs handshake response with the electronic gear shifter;

[0083] The step is designed to perform handshake response between the automatic parking controller and the electronic gear shifter, so as to realize the connection between the automatic parking controller and the electronic gear shifter.

[0084] Further, the step can include:

[0085] Step 1, the automatic parking controller checks the control message according to a preset period;

[0086] Step 2, when the checking is passed, the automatic parking controller performs handshake pairing with the electronic gear shifter;

[0087] Step 3, when the handshake pairing is completed, communication fault detection is performed according to a preset detection period;

[0088] Step 4, when the communication fault detection is passed, a response time delay requirement signal is sent.

[0089] It can be seen that, in the optional solution, how to perform handshake response is mainly described. In the optional solution, the automatic parking controller checks the control message according to a preset period; when the checking is passed, the automatic parking controller performs handshake pairing with the electronic gear shifter; when the handshake pairing is completed, communication fault detection is performed according to a preset detection period; and when the communication fault detection is passed, a response time delay requirement signal is sent.

[0090] S202, when the handshake response is passed, the automatic parking controller sends a control request signal to the electronic gear shifter, so that the electronic gear shifter judges whether to accept the control request signal based on a preset condition;

[0091] On the basis of S201, the step is designed to send a control request signal to the electronic gear shifter when the handshake response is passed, so that the electronic gear shifter judges whether to accept the control request signal based on a preset condition.

[0092] Further, the step can include:

[0093] Step 1, when the handshake response is passed, the automatic parking controller sends a control request and a target gear request to the electronic gear shifter;

[0094] Step 2, the electronic gear shifter determines whether to accept the control request signal based on preset conditions;

[0095] Step 3, if the electronic gear shifter accepts the control request signal, the target gear request is converted into a target gear signal, and the gear shifting operation is performed based on the target gear signal.

[0096] It can be seen that the optional solution mainly illustrates how to control the electronic gear shifter. In the optional solution, when the handshake response is passed, the automatic parking controller sends a control request and a target gear request to the electronic gear shifter; the electronic gear shifter determines whether to accept the control request signal based on preset conditions; if the electronic gear shifter accepts the control request signal, the target gear request is converted into a target gear signal, and the gear shifting operation is performed based on the target gear signal.

[0097] S203, when the electronic gear shifter sends a controlled signal, the automatic parking switch is activated, and the radar device is used to search for a parking space;

[0098] On the basis of S202, the step aims to activate the automatic parking switch when the electronic gear shifter sends a controlled signal, and search for a parking space through the radar device;

[0099] S204, when the parking space is confirmed, the vehicle speed is reduced to a stop speed.

[0100] On the basis of S203, the step aims to reduce the vehicle speed to a stop speed when the parking space is confirmed, so that the vehicle can subsequently perform the automatic parking operation.

[0101] Further, the embodiment can further include:

[0102] When the electronic gear shifter sends a gear shifter parking exit fault signal to the automatic parking controller, the electronic gear shifter sends a brake instruction to the brake system, and displays an automatic parking fault through the instrument.

[0103] It can be seen that the embodiment realizes the integration of the automatic parking controller and the electronic gear shifter by communicating between the automatic parking controller and the electronic gear shifter and controlling the electronic gear shifter, improves the integration degree, and reduces the cost of the whole vehicle.

[0104] The electronic gear shifter control method provided by the application is further described below through another specific embodiment.

[0105] The embodiment provides an electronic gear shifting control method and related device, and the embodiment mainly focuses on the APA (Auto Parking Assist, automatic parking assist system) and ESM (Electronic selector module, electronic gear shifter) logic control method, gear shifting mechanism and transmission system locking to implement the electronic anti-theft strategy of locking and anti-theft.

[0106] Please refer to Figure 2 , Figure 2 The power-off flowchart of the electronic gear shifting control method provided by the embodiment of the application.

[0107] Please refer to Figure 3 , Figure 3 The power-on flowchart of the electronic gear shifting control method provided by the embodiment of the application.

[0108] The electronic anti-theft strategy is mainly that the vehicle automatically returns to the parking gear after power-off. When the vehicle is electronically unlocked, the BDC (Body Domain Controller) and the TCU (Transmission Control Unit, automatic transmission control unit) / VECU (Vehicle Electronic Control System) perform anti-theft authentication, the TCU executes the gear shifter shifting request after the authentication passes, and the TCU / VECU remains in the parking gear and prohibits the parking gear from moving out after the authentication fails.

[0109] Please refer to Figure 4 , Figure 4 The structure diagram of the automatic parking controller provided by the embodiment of the application.

[0110] The APA and ESM logic control method, the automatic parking assist system searches for a parking space at a speed of <30 km / h, and exits the search for a parking space when the speed is greater than 30 km / h, and the speed is a calibratable quantity. The APA function exits when the speed is <10 km / h or >12 km / h during the parking process.

[0111] The parking is paused when the artificial brake is stepped on, the artificial accelerator is stepped on, the safety belt is released, the door is opened, the artificial parking is performed, and the artificial gear is hung. The parking is cancelled when the artificial steering wheel is turned and the artificial button is pressed. During the full-automatic parking process, the vehicle can be shifted only after the system or the artificial brake is stepped on to stop the vehicle. The driver needs to press the button for 3 seconds to recover. If the APA controller fails during the parking process, the APA notifies the driver to take over the vehicle; meanwhile, the control state of each controller associated with the APA system is released. If the related module actively exits during the parking process, the APA notifies the ESC brake and the instrument to prompt the APA internal fault, and then the APA cancels the control of the related module.

[0112] The process of the APA and ESM handshake response can include:

[0113] First step, check data. APA sends request control message condition: check (check and check feedback) and rolling count of 3 consecutive cycles have no error.

[0114] Second step, handshake pairing.

[0115] Wherein, GW_APA_ACPK_ESM_CONTROL_REQUEST conversion to GW_APA_ACPK_ESM_CONTROL_REQUEST> 0, ESM starts detection: 3 consecutive (can be calibrated) cycle signal GW_RollingCount_120 and GW_CheckSum_120 detection without error, ESM and APA control state can be converted from false to ESM_DIRECTION_CTRL_BY_ACPK=true, handshake success.

[0116] Third step, communication fault detection. After detecting ESM communication failure: inform ESC (Electronic Stability Controller, vehicle body electronic stability control system) to stop the vehicle, and prompt the driver to take over the vehicle; Detection mechanism: after the handshake between APA and ESM is successful, the checksum or rolling counter of 5 consecutive (calibratable) cycles is wrong, indicating that the communication is in a fault state; After detecting APA communication failure: ESM and APA control state is set to uncontrolled state; At the same time, ESM detects vehicle speed, and when the vehicle speed is lower than 5km / h (calibratable), the control executes the action of hanging into the parking gear. Detection mechanism: ESM actively exits APA under any condition;

[0117] Case 1: GW_LostToAPA=1 (GW detects APA communication loss), ESM executes immediately;

[0118] Case 2: 5 consecutive (calibratable) cycle signal GW_RollingCount_120 and GW_CheckSum_120 detection.

[0119] Fourth step, response delay requirement. The response signal ESM_DIRECTION_CTRL_BY_ACPK of ESM should be responded within 100ms (5 frames) after the request signal of APA is sent.

[0120] Further, APA and ESM signal interaction, automatic parking switch activation, radar searches for parking space, confirms the parking space, and the vehicle speed will be stopped,

[0121] Wherein, APA requests control to ESM, APA sends the following signals to ESM:

[0122] a) Shift lever APA control request GW_APA_ACPK_ESM_CONTROL_REQUEST: APA sends this signal to ESM, when GW_APA_ACPK_ESM_CONTROL_REQUEST > 0, ESM accepts control according to conditions;

[0123] b) Target gear request GW_APA_ACPK_DRIVING_DIR_REQ:

[0124] APA sends target gear signal to ESM, requesting electronic shift lever to shift, ESM directly forwards GW_APA_ACPK_DRIVING_DIR_REQ gear signal to ESM's target gear signal ESM_PRNDLStatus, ESM does not need to judge;

[0125] ESM sends the following signals to APA:

[0126] a) Shift lever APA controlled status ESM_DIRECTION_CTRL_BY_ACPK:

[0127] This signal is used to respond to GW_APA_ACPK_ESM_CONTROL_REQUEST signal, 1 means controlled, 0 means not controlled, default value is 0;

[0128] b) Shift lever parking exit fault ESM_quit_reason;

[0129] This signal is used to feedback ESM status to APA, default value is 0, no fault;

[0130] 1) ESM_quit_reason = 1, ESM internal fault, ESM internal fault is tentatively as follows:

[0131] D4: Sensor fault; D5: Internal communication fault; D6: Command recognition fault;

[0132] 2) ESM_quit_reason = 2, manual intervention (ESM detects driver shift operation);

[0133] 3) ESM_quit_reason = 3, network fault (D15: communication with APA is lost).

[0134] c) Expected gear DRIVER_LEVER_ACTION:

[0135] ESM receives ACPK_DRIVING_DIR_REQ and confirms to APA, both parties agree that ESM sends a fixed value 0;

[0136] d) Steady state gear POS MONOSTABLE LEVER:

[0137] Both sides agreed that ESM does not need to send this message, the gateway forwarding ESM target gear ESM PRNDL Status;

[0138] e) Autonomous parking confirmation request APK VALIDATION REQUEST:

[0139] Where the autonomous parking confirmation request, the physical button signal on the electronic gear lever, and the button switch on the instrument cluster.

[0140] ACPK_VAL_REQUEST_BSI function is the same. ESM no button, ESM sends a fixed value of 0; by the gateway to handle the signal to APA, the logic is

[0141] If APA APAOnOff = 1 && (APA_Enable_Switch = 1 and > 3S), APK VALIDATION REQUEST = 1;

[0142] Else APA APAOnOff = 0, APK VALIDATION REQUEST = 0.

[0143] Where APA and ESM control state strategy definition: ESM APA control state ESM_DIRECTION_CTRL_BY_ACPK has two states of false and true.

[0144] ESM itself BUSOFF, APA through the communication of rolling counter to monitor and ESM communication state;

[0145] The current control state is as follows:

[0146] APA and ESM controlled state identification ESM_DIRECTION_CTRL_BY_ACPK = false;

[0147] ESM parking exit fault ESM_quit_reason according to the normal detection state sent;

[0148] ESM ignore APA any shift request GW_APA_ACPK_DRIVING_DIR_REQ;

[0149] ESM to APA message DRIVER LEVER ACTION and APK VALIDATION REQUEST are sent by default or fixed value 0;

[0150] APA and ESM pre-controlled mechanism:

[0151] If receiving GW_APA_ACPK_ESM_CONTROL_REQUEST = 1 / 2 / 3

[0152] ESM needs to meet the following two conditions to accept APA control, that is, ESM_DIRECTION_CTRL_BY_ACPK = true, otherwise ESM_DIRECTION_CTRL_BY_ACPK = false;

[0153] Condition 1: Meet the handshake pairing requirements;

[0154] Condition 2: Exit failure signal state ESM_quit_reason = 0 or 2.

[0155] APA and ESM controlled state description:

[0156] ESM sends ESM_DIRECTION_CTRL_BY_ACPK = true;

[0157] ESM normally responds and sends APA target gear request GW_APA_ACPK_DRIVING_DIR_REQ and converts it into ESM_PRNDLStatus issued;

[0158] ESM_quit_reason message is normally sent.

[0159] APA and ESM manual intervention mechanism:

[0160] ESMAPA controlled mode state, maintain ESM_DIRECTION_CTRL_BY_ACPK = true;

[0161] ESM parking exit failure: ESM_quit_reason = 2 manual intervention, send 5 cycles (can be calibrated) and return to position;

[0162] ESM normally forwards the target gear request GW_APA_ACPK_DRIVING_DIR_REQ of APA into ESM_PRNDLStatus issued;

[0163] ESM does not respond to user's gear request, and APA detects manual intervention signal and APA makes corresponding processing.

[0164] APA and ESM pre-exit mechanism:

[0165] When the ESM receives the GW_APA_ACPK_ESM_CONTROL_REQUEST = 0, the ESM sends the ESM_DIRECTION_CTRL_BY_ACPK = false;

[0166] When the ESM sends the ESM_quit_reason = 1 or 3, the ESM sends the ESM_DIRECTION_CTRL_BY_ACPK = false;

[0167] When one of the above conditions is met, the ESM APA control state is changed from the controlled state to the uncontrolled state; (at this time, the APA notifies the ESC of braking, and the instrument prompts an APA internal fault, reminding the driver to take over the vehicle).

[0168] In any case, after the ESM exits the APA, the ESM detects the vehicle speed, and when the vehicle speed > 5 km / h, the ESM maintains the current target gear sending, and when the vehicle speed is lower than 5 km / h (which can be calibrated), the ESM sends a parking gear signal to the GBC.

[0169] After the ESM actively exits the APA mode, there is an internal temporary state, in which the ESM will refuse the request of GW_APA_ACPK_ESM_CONTROL_REQUEST > 0. In this temporary state, the ESM_quit_reason indicates the exit reason, and after 3 seconds or receiving the GW_APA_ACPK_ESM_CONTROL_REQUEST = 0, the ESM exits the temporary state and reenters the uncontrolled state, and clears the exit reason. (The reason for this design is to prevent the ESM from actively exiting the APA mode and immediately entering the APA mode again due to message delay).

[0170] Please refer to Figure 5 , Figure 5 The first self-diagnosis flowchart of the electronic gear shifting control method provided by the embodiment of the application.

[0171] Please refer to Figure 6 , Figure 6 The second self-diagnosis flowchart of the electronic gear shifting control method provided by the embodiment of the application.

[0172] The ESM control program receives CAN messages in the form of an interrupt, and when a message of a specific ID (referring to the message received by the ESM) is received, a received flag bit is set, indicating that the message has been received and not processed. In the time scheduling program, every 50 ms, the received flag bit of the specific ID (referring to the message received by the ESM) is judged, if received, the flag bit is cleared. If not received, the counter is incremented by 1. If accumulated to 10, it indicates that no message has been received for 500 ms, and the network fault flag bit is set.

[0173] It can be seen that the vehicle theft prevention function based on the electronic gear shifter is realized by controlling the electronic gear shifter to perform gear shifting operation to the parking gear when the vehicle is parked, performing anti-theft authentication through the vehicle electronic control system when the vehicle is started and the vehicle is electronically unlocked, controlling the electronic gear shifter to perform gear shifting operation when the authentication is passed, and sending a gear position maintaining instruction to the electronic gear shifter when the authentication is not passed, the mechanical anti-theft such as the traditional steering column anti-theft lock is avoided, and the vehicle cost is reduced. Meanwhile, the automatic parking function is integrated, the integration degree is improved, and the cost is reduced.

[0174] The electronic gear shifting control device provided by the embodiments of the present application is described below, and the electronic gear shifting control device described below can be correspondingly referred to the electronic gear shifting control method described above.

[0175] Please refer to Figure 7 , Figure 7 The structure diagram of the electronic gear shifting control device provided by the embodiments of the present application is shown.

[0176] In the embodiments, the device can include:

[0177] The power-off operation module 100 is configured to control the electronic gear shifter to perform gear shifting operation to the parking gear when the vehicle is powered off.

[0178] The anti-theft authentication module 200 is configured to perform anti-theft authentication through the vehicle electronic control system when the vehicle is electronically unlocked, control the electronic gear shifter to perform gear shifting operation when the authentication is passed, and send a gear position maintaining instruction to the electronic gear shifter when the authentication is not passed.

[0179] It can be seen that the vehicle theft prevention function based on the electronic gear shifter is realized by controlling the electronic gear shifter to perform gear shifting operation to the parking gear when the vehicle is parked, performing anti-theft authentication through the vehicle electronic control system when the vehicle is started and the vehicle is electronically unlocked, controlling the electronic gear shifter to perform gear shifting operation when the authentication is passed, and sending a gear position maintaining instruction to the electronic gear shifter when the authentication is not passed, the mechanical anti-theft such as the traditional steering column anti-theft lock is avoided, and the vehicle cost is reduced. Meanwhile, the automatic parking function is integrated, the integration degree is improved, and the cost is reduced.

[0180] The present application also provides a computing device, please refer to Figure 8 , Figure 8 The structure diagram of the computing device provided by the embodiments of the present application is shown, and the computing device can include:

[0181] The memory is configured to store the computer program.

[0182] The processor is configured to perform the steps of the electronic gear shifting control method as described above when the computer program is executed.

[0183] As Figure 8As shown in the figure, it is a schematic diagram of the constituent structure of the computing device, which can include a processor 10, a memory 11, a communication interface 12 and a communication bus 13. The processor 10, the memory 11 and the communication interface 12 can communicate with each other through the communication bus 13.

[0184] In the embodiment of the present application, the processor 10 can be a central processing unit (CPU), an application specific integrated circuit, a digital signal processor, a field programmable gate array or other programmable logic device, etc.

[0185] The processor 10 can call the program stored in the memory 11. Specifically, the processor 10 can perform the operations in the embodiments of the abnormal IP identification method.

[0186] The memory 11 is used to store one or more programs. The program can include program code, and the program code includes computer operation instructions. In the embodiment of the present application, the memory 11 at least stores a program for implementing the following functions:

[0187] When the vehicle is powered off, the electronic gear shifter is controlled to perform a gear shifting operation to the parking gear;

[0188] When the vehicle is electronically unlocked, the vehicle electronic control system is used to perform anti-theft authentication;

[0189] When the authentication is passed, the electronic gear shifter is controlled to perform a gear shifting operation;

[0190] When the authentication is not passed, a gear position maintaining instruction is sent to the electronic gear shifter.

[0191] In a possible implementation, the memory 11 can include a program storage area and a data storage area. The program storage area can store an operating system and at least one application program required by a function, etc. The data storage area can store data created during use.

[0192] In addition, the memory 11 can include a high-speed random access memory, and can also include a non-volatile memory, such as at least one magnetic disk storage device or other volatile solid-state storage device.

[0193] The communication interface 12 can be an interface of a communication module, used to connect with other devices or systems.

[0194] Of course, it needs to be explained that, Figure 8 The structure shown does not constitute a limitation on the computing device in the embodiments of the present application. In actual application, the computing device can include more or fewer components than those shown in the figure, or some components can be combined. Figure 8 The structure shown does not constitute a limitation on the computing device in the embodiments of the present application. In actual application, the computing device can include more or fewer components than those shown in the figure, or some components can be combined.

[0195] The application further provides a computer readable storage medium, which stores a computer program. The computer program is executed by a processor to implement the steps of any one of the electronic shift control methods.

[0196] The computer readable storage medium can include a U disk, a mobile hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and various storage media that can store program codes.

[0197] The computer readable storage medium provided by the application is described in the above method embodiments, and thus will not be described here.

[0198] The embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts of each embodiment can be referred to each other. For the device disclosed by the embodiments, since it corresponds to the method disclosed by the embodiments, the description is relatively simple, and the related parts can be referred to the method part.

[0199] The skilled person can further realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be realized by electronic hardware, computer software or a combination of both. In order to clearly show the interchangeability of hardware and software, the components and steps of each example have been described in the above description. Whether the functions are realized by hardware or software depends on the specific application and design constraints of the technical solution. The skilled person can use different methods to realize the described functions for each specific application, but such implementation should not be considered beyond the scope of the application.

[0200] The steps of the method or algorithm described in combination with the embodiments disclosed herein can be directly implemented by hardware, a software module executed by a processor, or a combination of both. The software module can be placed in a Random Access Memory (RAM), a memory, a Read-Only Memory (ROM), an electrically programmable ROM, an electrically erasable programmable ROM, a register, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

[0201] The above introduces in detail the electronic gear shifting control method, the electronic gear shifting control device, the computing device and the computer readable storage medium provided by the application. The principle and implementation of the application are described by applying specific examples, and the above example is only used to help understand the method and the core idea of the application. It should be pointed out that for ordinary skilled persons in the technical field, some improvements and modifications can be made to the application without departing from the principle of the application, and these improvements and modifications also fall within the protection scope of the claims of the application.

Claims

1. An electronic gear shifting control method, characterized in that, include: When the vehicle is powered off, control the electronic gear shifter to perform a gear shift operation to the parking gear; When the vehicle is electronically unlocked, anti-theft authentication is performed through the vehicle's electronic control system; When authentication is successful, control the electronic shifter to perform a shift operation; If authentication fails, a gear hold command is sent to the electronic shifter; The automatic parking controller and the electronic shifter communicate via a handshake. After a successful handshake, the automatic parking controller sends a control request signal to the electronic shifter, so that the electronic shifter can determine whether to accept the control request signal based on preset conditions. The determination of whether to accept the control request signal based on preset conditions includes: when a communication failure is detected with the automatic parking controller, the control state of the electronic shifter and the automatic parking controller is set to an uncontrolled state; simultaneously, the electronic shifter detects the vehicle speed, and if the vehicle speed is below 5 km / h, it controls the engagement of the parking gear; after disengaging from the automatic parking controller in any situation, the electronic shifter detects the vehicle speed, and if the vehicle speed is above 5 km / h, the electronic shifter maintains the current target gear. When the electronic shifter sends a controlled signal, it activates the automatic parking switch and searches for parking spaces via radar equipment. Once the parking space is confirmed, reduce the vehicle's speed to a stop.

2. The electronic shift control method according to claim 1, characterized in that, When the vehicle is powered off, the electronic gear shifter is controlled to perform a gear shift operation to park, including: When the vehicle is powered off, it is determined whether the current gear is the parking gear; if not, the electronic gear shifter is controlled to perform a gear shift operation to the parking gear; if the current gear is not the parking gear, a power-off operation is performed.

3. The electronic shift control method according to claim 1, characterized in that, When the vehicle is electronically unlocked, anti-theft authentication is performed through the vehicle's electronic control system, including: When a command to start the switch is received, key authentication is performed; When key authentication is successful, the power mode is switched to the on state; anti-theft authentication is performed through the vehicle domain controller and gear shift system.

4. The electronic shift control method according to claim 1, characterized in that, The automatic parking controller and the electronic shifter communicate via a handshake, including: The automatic parking controller verifies the control messages according to a preset period; When the verification is successful, the automatic parking controller performs a handshake pairing with the electronic shifter; When the handshake pairing is completed, communication fault detection is performed according to the preset detection cycle; when the communication fault detection passes, a response delay requirement signal is sent.

5. The electronic shift control method according to claim 1, characterized in that, After the handshake response is successful, the automatic parking controller sends a control request signal to the electronic shifter, so that the electronic shifter can determine whether to accept the control request signal based on preset conditions, including: Once the handshake response is successful, the automatic parking controller sends a control request and a target gear request to the electronic gear shifter. The electronic shifter determines whether to accept the control request signal based on preset conditions. If the electronic shifter accepts the control request signal, it converts the target gear request into a target gear signal and performs a shift operation based on the target gear signal.

6. The electronic shift control method according to claim 5, characterized in that, Also includes: When the electronic shifter sends a shifter parking exit fault signal to the automatic parking controller, the electronic shifter sends a braking command to the braking system and displays the automatic parking fault on the instrument panel.

7. An electronic shift control device, characterized in that, include: The power-off operation module is used to control the electronic gear shifter to perform a gear shifting operation to the parking gear when the vehicle is powered off. The anti-theft authentication module is used to perform anti-theft authentication through the vehicle's electronic control system when the vehicle is electronically unlocked; when the authentication is successful, it controls the electronic shifter to perform a shifting operation; when the authentication fails, it sends a gear hold command to the electronic shifter. The automatic parking controller and the electronic shifter communicate via a handshake. After a successful handshake, the automatic parking controller sends a control request signal to the electronic shifter, so that the electronic shifter can determine whether to accept the control request signal based on preset conditions. The determination of whether to accept the control request signal based on preset conditions includes: when a communication failure is detected with the automatic parking controller, the control state of the electronic shifter and the automatic parking controller is set to an uncontrolled state; simultaneously, the electronic shifter detects the vehicle speed, and if the vehicle speed is below 5 km / h, it controls the engagement of the parking gear; after disengaging from the automatic parking controller in any situation, the electronic shifter detects the vehicle speed, and if the vehicle speed is above 5 km / h, the electronic shifter maintains the current target gear. When the electronic shifter sends a controlled signal, it activates the automatic parking switch and searches for parking spaces via radar equipment. Once the parking space is confirmed, reduce the vehicle's speed to a stop.

8. A computing device, characterized in that, include: Memory, used to store computer programs; A processor, configured to implement the steps of the electronic shift control method as described in any one of claims 1 to 6 when executing the computer program.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the steps of the electronic shift control method as described in any one of claims 1 to 6.

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