CN111619473A

CN111619473A - Automobile static power supply management system and management method

Info

Publication number: CN111619473A
Application number: CN202010477222.8A
Authority: CN
Inventors: 干能强; 张伟
Original assignee: Chongqing Changan Automobile Co Ltd
Current assignee: Hefei Changan Automobile Co Ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2020-09-04
Anticipated expiration: 2040-05-29
Also published as: CN111619473B

Abstract

The invention discloses an automobile static power management system and a management method, which comprises a storage battery sensor, a relay, an automobile body controller, a gateway controller, a HU controller, a background server and N controllers connected with the gateway controller through a CAN (controller area network) line, wherein the storage battery sensor is connected with the automobile body controller through an LIN (local interconnect network) line, the automobile body controller CAN control the on/off of a switch of the relay, the automobile body controller is connected with the gateway controller through the CAN line, the gateway controller is connected with the HU controller through the CAN line, and the HU controller is in wireless communication with the background server; after the whole vehicle is powered off, the controller which is not dormant in the timing time is reset and controlled, so that the controller on the whole vehicle network is dormant as much as possible, the electric quantity consumption of the storage battery is reduced, meanwhile, the power-off of the whole vehicle is carried out when the electric quantity of the storage battery is low by combining the SOC state of the storage battery and the quiescent current monitoring of the whole vehicle, and the normal starting of the vehicle after parking is ensured.

Description

Automobile static power supply management system and management method

Technical Field

The invention belongs to the field of automobile electric appliances, and particularly relates to an automobile static power supply management system and a management method.

Background

Almost all vehicles are equipped with gateway controllers at present, which mainly function to forward and distribute network signals and messages, such as a gateway controller of the whole vehicle, the gateway controller is used for distributing network addresses and forwarding signals and messages, and the distributed gateways are different based on the difference of the functions of each controller on the whole vehicle, for example, a vehicle body controller, a controller 1 to a controller N (such as an air conditioner controller and the like) are distributed to a network segment 1, and an HU controller, a controller N +1 to a controller N (such as a wireless charging controller and the like) are distributed to a network segment 2. The whole vehicle controller based on the framework is in an OFF gear when a whole vehicle power supply is in a closed state, and the sleeping work flow of the vehicle in a locked state is as follows: firstly, each controller sends a sleep instruction on the network segment according to the sleep judgment condition of the controller; the secondary gateway controller combines the network dormancy messages (including whether to dormancy, when to awaken, and the like) of each network segment controller to judge whether the whole vehicle network is dormant (all controllers on the whole vehicle network are dormant, the whole vehicle network is dormant), if so, the network dormancy is ended, otherwise, the network dormancy is judged again.

The current intelligentization of vehicles is increasing day by day, the signal interaction is frequent, and even though the vehicle body controller sends a sleep instruction to each controller after the whole vehicle is powered off, due to the influence of abnormal signal receiving or sending or peripheral environment among the controllers, one or more controllers are not in sleep for a long time, or the static current of the whole vehicle is large after the power off, the power shortage of a storage battery can be caused, and the vehicle can not be started normally after being parked. However, when the maintenance personnel analyze and troubleshoot the problem, the event is difficult to emerge and trigger again, so that the problem cannot be solved in time.

Disclosure of Invention

The invention aims to provide an automobile static power supply management system and a management method, which are used for better avoiding deep power shortage of a storage battery after the whole automobile is powered off and ensuring that the automobile can be normally started after being parked.

The invention relates to an automobile static power management system, which comprises a storage battery sensor, a relay, an automobile body controller, a gateway controller, an HU controller (namely an entertainment host controller), a background server and N controllers (the N controllers are all controllers already used on an automobile at present) which are connected with the gateway controller through CAN lines, wherein the storage battery sensor is arranged at the negative end of a storage battery and is connected with the automobile body controller through LIN lines, the storage battery sensor monitors the SOC of the storage battery and the static current of the whole automobile, when the SOC of the storage battery is less than a first preset SOC threshold value or the static current of the whole automobile exceeds the standard, the SOC data of the storage battery and the static current data of the whole automobile are sent to the automobile body controller, the switch of the relay is connected in a power supply circuit of the storage battery, and the coil of the relay is connected with the automobile body controller through a hard wire, the switch closure/disconnection that automobile body controller CAN control relay is so that whole car circular telegram or outage (switch on/cut off the power supply of battery promptly), and automobile body controller passes through the CAN line and is connected with gateway controller, and gateway controller passes through the CAN line and is connected with the HU controller, and automobile body controller, HU controller and N controller communicate through gateway controller, CAN line, and the HU controller carries out radio communication with backend server.

Preferably, the automobile static power management system further comprises a diagnosis interface, and the diagnosis interface is connected with the gateway controller through a CAN line. The diagnostic interface has the main function of providing an interface for externally connecting diagnostic equipment, and maintenance personnel can use related equipment such as a diagnostic instrument and the like to be inserted into the diagnostic interface to be connected with the gateway controller 1 for inquiring and clearing related information.

Preferably, the HU controller is internally provided with a 4G module, and the HU controller is in wireless communication with the background server through the 4G module.

The invention relates to a vehicle static power supply management method, which adopts the vehicle static power supply management system and comprises the following steps:

s1, the gateway controller judges whether the power supply of the whole vehicle is in an OFF gear and the vehicle is in a locked state, if so, S2 is executed, otherwise, S1 is continuously executed;

s2, the gateway controller starts a network diagnosis timing clock, and then executes S3;

s3, the gateway controller obtains the network dormancy message sent by each controller, and then executes S4;

s4, the gateway controller judges whether the whole vehicle network is dormant, if so, the gateway controller stops timing, and then executes S15, otherwise, executes S5;

s5, the gateway controller judges whether the timing time reaches a preset time threshold, if so, the S6 is executed, otherwise, the S3 is executed;

s6, the gateway controller records the relevant data of the controller which is not dormant, stores the relevant data of the controller which is not dormant in the diagnosis ID, simultaneously sends the relevant data of the controller which is not dormant to the HU controller, and then executes S7;

s7, uploading the relevant data of the controller which is not dormant to a background server by the HU controller, and then executing S8;

s8, the background server stores the related data of the un-dormant controller, locks the un-dormant controller (i.e. identifies the un-dormant controller), sends the reset instruction of the un-dormant controller to the HU controller, and then executes S9;

s9, judging whether the reset condition is met by the HU controller, if so, executing S10, and if not, finishing;

s10, the HU controller sends a reset instruction of the controller which is not dormant to the gateway controller, and then S11 is executed;

s11, the gateway controller maps the reset instruction of the controller which is not dormant and sends the reset instruction to the controller which is not dormant, and then S12 is executed;

s12, the gateway controller judges whether all the controllers which are not in sleep are reset successfully, if so, the whole vehicle network is judged to be in sleep, and then S15 is executed, otherwise, S13 is executed;

s13, the gateway controller records the relevant data of the controller which is not successfully reset, stores the relevant data of the controller which is not successfully reset in the diagnosis ID, simultaneously sends the relevant data of the controller which is not successfully reset to the HU controller, and then executes S14;

s14, uploading the relevant data of the controller which is not successfully reset to a background server by the HU controller, storing the relevant data of the controller which is not successfully reset by the background server, and then executing S15;

s15, the gateway controller judges whether the power supply of the whole vehicle is in an OFF gear and the vehicle is in a locked state, if so, S16 is executed, otherwise, the operation is finished;

s16, the gateway controller judges whether the SOC data of the storage battery and the static current data of the whole vehicle sent by the vehicle body controller are received, if so, S17 is executed, otherwise, S15 is executed;

s17, the gateway controller records the SOC data and the quiescent current data and stores the SOC data and the quiescent current data in the diagnosis ID, and simultaneously sends the SOC data and the quiescent current data to the HU controller, and then S18 is executed;

s18, uploading the SOC data and the quiescent current data to a background server by the HU controller, and then executing S19;

s19, the background server stores the SOC data and the quiescent current data, sends a message for reminding a user of igniting and charging to the mobile phone, and then executes S20;

s20, judging whether the SOC of the storage battery is smaller than a second preset SOC threshold value or not by the vehicle body controller, if so, executing S21, and if not, returning to execute S15;

and S21, the vehicle body controller controls the switch of the relay to be switched off, the whole vehicle is powered off, and then the operation is finished.

Preferably, if the power supply of the whole vehicle is in an OFF gear, the reset condition is met, otherwise, the reset condition is not met.

Preferably, the first preset SOC threshold is 50% and the second preset SOC threshold is 30%.

After the whole vehicle is powered off, the controller which is not dormant in the timing time is reset and controlled, so that the controller on the whole vehicle network is dormant as much as possible, the electric quantity consumption of a storage battery is reduced, meanwhile, the whole vehicle is powered off when the electric quantity of the storage battery is low by combining the SOC state of the storage battery and the static current monitoring of the whole vehicle, the deep power shortage of the storage battery is better avoided, the problem that the whole vehicle cannot be started after being parked due to abnormal conditions that the controller is not dormant or the whole vehicle network is not dormant or the static current of the whole vehicle is too large and the like after the whole vehicle is powered off is solved, and the normal starting of the vehicle after being parked is ensured; in addition, in the control process, if abnormal conditions such as abnormal dormancy, abnormal reset, low SOC (system on chip), excessive quiescent current and the like occur, the gateway controller stores the abnormal conditions in the diagnosis ID and sends the abnormal conditions to the background server through the HU controller, and maintenance personnel can quickly check the power shortage problem of the storage battery by inquiring data on the background server or acquiring data in the diagnosis ID through a diagnosis instrument, so that the operation is convenient and quick.

Drawings

Fig. 1 is a circuit topology structure diagram of the automobile static power management system of the present invention.

FIG. 2 is a partial flowchart of a method for managing a static power supply of an automobile according to the present invention.

FIG. 3 is another partial flowchart of the method for managing a static power supply of a vehicle according to the present invention.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

The automobile static power management system shown in fig. 1 comprises a storage battery sensor 1, a relay 2, an automobile body controller 3, a gateway controller 4, an HU controller 5 (namely an entertainment host controller), a background server 6, a diagnosis interface 7 and N controllers connected with the gateway controller 4 through a CAN line. The gateway controller 4, the vehicle body controller 3 on the network segment 1, the controllers 1 to N for realizing the established functions, the HU controller 5 on the network segment 2, and the controllers N +1 to N for realizing the established functions are already existed in the existing whole vehicle network topology structure; only the network diagnosis timing clock is added in the gateway controller 4, corresponding diagnosis storage and clearing bytes are newly added in the diagnosis ID, and a 4G module is arranged in the HU controller 5. The storage battery sensor 1 is arranged at the negative end of a storage battery, the storage battery sensor 1 is connected with the vehicle body controller 3 through an LIN line, the storage battery sensor 1 monitors the SOC of the storage battery and the quiescent current of the whole vehicle, when the SOC of the storage battery is less than 50% or the quiescent current of the whole vehicle exceeds the standard (namely the quiescent current of the whole vehicle is greater than a preset quiescent current threshold), the SOC data of the storage battery and the quiescent current data of the whole vehicle are sent to the vehicle body controller 3, a switch of the relay 2 is connected in a power supply loop of the storage battery, a coil of the relay 2 is connected with the vehicle body controller 3 through a hard wire, the vehicle body controller 3 CAN control the on/off of the switch of the relay 2 to electrify or cut off the whole vehicle (namely to switch on/off the power supply of the storage battery), the vehicle body controller 3 is connected with the gateway controller 4 through a CAN line, the vehicle body controller 3 CAN send the received SOC, diagnosis interface 7 is connected with gateway controller 4 through the CAN line, and gateway controller 4 is connected with HU controller 5 through the CAN line, and automobile body controller 3, HU controller 5 and N controllers communicate through gateway controller 4, CAN line, and HU controller 5 carries out wireless communication through 4G module and backend server 6.

As shown in fig. 2 and 3, the method for managing the static power of the vehicle, which uses the static power management system of the vehicle, includes:

s1, the gateway controller 4 judges whether the power supply of the whole vehicle is in an OFF gear and the vehicle is in a locked state, if so, S2 is executed, otherwise, S1 is continuously executed;

s2, the gateway controller 4 starts a network diagnosis timing clock, and then executes S3;

s3, the gateway controller 4 obtains the network dormancy message (including whether dormancy, dormancy time, awakening time, etc.) sent by each controller, and then executes S4;

s4, the gateway controller 4 judges whether the whole vehicle network is dormant, if so, the gateway controller 4 stops timing, and then executes S15, otherwise, executes S5;

s5, the gateway controller 4 judges whether the timing time reaches a preset time threshold, if so, the S6 is executed, otherwise, the S3 is executed;

s6, the gateway controller 4 records the data related to the non-sleeping controller (such as ID of the non-sleeping controller, number of times of non-sleeping of the non-sleeping controller, etc.), stores the data related to the non-sleeping controller in the diagnostic ID, and simultaneously transmits the data related to the non-sleeping controller to the HU controller 5, and then executes S7;

s7, the HU controller 5 uploads the related data of the controller which is not dormant to the background server 6 through the 4G network, and then S8 is executed;

s8, the backend server 6 stores the data related to the un-dormant controller, locks the un-dormant controller (i.e. identifies the un-dormant controller), sends the reset instruction of the un-dormant controller to the HU controller 5 through the 4G network, and then executes S9;

s9, the HU controller 5 judges whether a reset condition is met (namely whether the power supply of the whole vehicle is in an OFF gear is judged), if so, S10 is executed, and if not, the process is ended;

s10, HU controller 5 sends the reset command of the controller that is not dormant to gateway controller 4, and then executes S11;

s11, the gateway controller 4 maps the reset instruction of the controller which is not dormant and sends the reset instruction to the controller which is not dormant, and then S12 is executed;

s12, the gateway controller 4 judges whether all the controllers which are not in sleep are reset successfully, if so, the whole vehicle network is judged to be in sleep, and then S15 is executed, otherwise, S13 is executed;

s13, the gateway controller 4 records the data related to the controller that has not been successfully reset (for example, the ID of the controller that has not been successfully reset), stores the data related to the controller that has not been successfully reset in the diagnostic ID, and sends the data related to the controller that has not been successfully reset to the HU controller 5, and then executes S14;

s14, uploading the relevant data of the controller which is not successfully reset to the background server 6 by the HU controller 5 through the 4G network, storing the relevant data of the controller which is not successfully reset by the background server 5, and then executing S15;

s15, the gateway controller 4 judges whether the power supply of the whole vehicle is in an OFF gear and the vehicle is in a locked state, if so, S16 is executed, otherwise, the operation is finished;

s16, the gateway controller 4 judges whether the SOC data of the storage battery and the static current data of the whole vehicle sent by the vehicle body controller 3 are received, if so, S17 is executed, otherwise, S15 is executed;

s17, the gateway controller 4 records and stores the SOC data and the quiescent current data in the diagnostic ID, and simultaneously transmits the SOC data and the quiescent current data to the HU controller 5, and then executes S18;

s18, the HU controller 5 uploads the SOC data and the quiescent current data to the background server 6 through the 4G network, and then executes S19;

s19, the background server 6 stores the SOC data and the quiescent current data, sends a message for reminding a user of ignition and charging to the mobile phone, and then executes S20;

s20, the vehicle body controller 3 judges whether the SOC of the storage battery is less than 30%, if so, S21 is executed, otherwise, S15 is executed;

and S21, the vehicle body controller 3 controls the switch of the relay 2 to be switched off, the whole vehicle is powered off, and then the operation is finished.

After the whole vehicle is powered off, the vehicle body controller 3 maintains some basal bodies to work by means of the residual electric quantity of the vehicle body controller, a driver only opens the vehicle door through a mechanical key, when the vehicle door is opened, the vehicle body controller 3 detects that the vehicle door is opened, the switch of the relay 2 is controlled to be closed, a power supply loop of the storage battery is switched on, the whole vehicle is electrified, the whole vehicle network is awakened, the storage battery has the electric quantity slightly smaller than 30%, and the vehicle can be started normally.

Claims

1. The utility model provides an automobile static power management system which characterized in that: the system comprises a storage battery sensor (1), a relay (2), a vehicle body controller (3), a gateway controller (4), an HU controller (5), a background server (6) and N controllers connected with the gateway controller (4) through CAN lines, wherein the storage battery sensor (1) is installed at the negative end of a storage battery, the storage battery sensor (1) is connected with the vehicle body controller (3) through an LIN line and monitors the SOC of the storage battery and the static current of a whole vehicle, the SOC data of the storage battery and the static current data of the whole vehicle are sent to the vehicle body controller when the SOC of the storage battery is smaller than a first preset SOC threshold value or the static current of the whole vehicle exceeds the standard, a switch of the relay (2) is connected in a power supply loop of the storage battery, a coil of the relay (2) is connected with the vehicle body controller (3) through a hard wire, and the vehicle body (3) CAN control the on/off of the relay (2), the automobile body controller (3) is connected with the gateway controller (4) through a CAN line, the gateway controller (4) is connected with the HU controller (5) through the CAN line, and the HU controller (5) is in wireless communication with the background server (6).

2. The automotive static power management system of claim 1, wherein: the system also comprises a diagnosis interface (7), and the diagnosis interface (7) is connected with the gateway controller (4) through a CAN line.

3. The automotive static power management system of claim 1 or 2, characterized in that: have the 4G module in HU controller (5), HU controller (5) carry out wireless communication through 4G module and backend server (6).

4. A static power management method for a vehicle using the static power management system for a vehicle according to any one of claims 1 to 3, the method comprising:

s1, the gateway controller (4) judges whether the power supply of the whole vehicle is in an OFF gear and the vehicle is in a locked state, if so, S2 is executed, otherwise, S1 is continuously executed;

s2, the gateway controller (4) starts a network diagnosis timing clock, and then S3 is executed;

s3, the gateway controller (4) acquires the network dormancy message sent by each controller, and then executes S4;

s4, the gateway controller (4) judges whether the whole vehicle network is dormant, if so, the gateway controller (4) stops timing, and then executes S15, otherwise, executes S5;

s5, the gateway controller (4) judges whether the timing time reaches a preset time threshold, if so, the S6 is executed, otherwise, the S3 is executed;

s6, the gateway controller (4) records the relevant data of the controller which is not dormant, stores the relevant data of the controller which is not dormant in the diagnosis ID, simultaneously sends the relevant data of the controller which is not dormant to the HU controller (5), and then executes S7;

s7, the HU controller (5) uploads the related data of the controller which is not dormant to the background server (6), and then S8 is executed;

s8, the background server (6) stores the relevant data of the un-dormant controller, locks the un-dormant controller, sends the reset instruction of the un-dormant controller to the HU controller, and then executes S9;

s9, judging whether the reset condition is met or not by the HU controller (5), if so, executing S10, and if not, finishing;

s10, the HU controller (5) sends a reset instruction of the controller which is not dormant to the gateway controller (4), and then S11 is executed;

s11, the gateway controller (4) maps the reset instruction of the controller which is not dormant and sends the reset instruction to the controller which is not dormant, and then S12 is executed;

s12, the gateway controller (4) judges whether all the controllers which are not in sleep are reset successfully, if so, the whole vehicle network is judged to be in sleep, and then S15 is executed, otherwise, S13 is executed;

s13, the gateway controller (4) records the relevant data of the controller which is not successfully reset, stores the relevant data of the controller which is not successfully reset in the diagnosis ID, simultaneously sends the relevant data of the controller which is not successfully reset to the HU controller, and then executes S14;

s14, uploading the relevant data of the controller which is not successfully reset to a background server (6) by the HU controller (5), storing the relevant data of the controller which is not successfully reset by the background server, and then executing S15;

s15, the gateway controller (4) judges whether the power supply of the whole vehicle is in an OFF gear and the vehicle is in a locked state, if so, S16 is executed, otherwise, the operation is finished;

s16, the gateway controller (4) judges whether the SOC data of the storage battery and the static current data of the whole vehicle sent by the vehicle body controller (3) are received, if so, S17 is executed, otherwise, S15 is executed;

s17, the gateway controller (4) records the SOC data and the quiescent current data and stores the SOC data and the quiescent current data in the diagnosis ID, and simultaneously sends the SOC data and the quiescent current data to the HU controller, and then S18 is executed;

s18, the HU controller (5) uploads the SOC data and the quiescent current data to the background server (6), and then S19 is executed;

s19, the background server (6) stores the SOC data and the quiescent current data, sends a message for reminding a user of igniting and charging to the mobile phone, and then executes S20;

s20, judging whether the SOC of the storage battery is smaller than a second preset SOC threshold value or not by the automobile body controller (3), if so, executing S21, and if not, returning to execute S15;

and S21, the vehicle body controller (3) controls the switch of the relay (2) to be switched off, the whole vehicle is powered off, and then the operation is finished.

5. The method for managing the static power of a vehicle according to claim 4, wherein: if the power supply of the whole vehicle is in an OFF gear, the reset condition is met, otherwise, the reset condition is not met.

6. The method for managing the static power of the automobile according to claim 5, wherein: the first preset SOC threshold value is 50%, and the second preset SOC threshold value is 30%.