阅读说明：本技术 一种整车电量管理装置及方法 (Device and method for managing electric quantity of whole vehicle ) 是由 徐猛 左敏 李涛 陈道凯 王云飞 王欣 于 2021-08-11 设计创作，主要内容包括：本发明提供一种整车电量管理装置及方法,系统包括车辆电气系统及蓄电池,其特征在于,整车电量管理装置还包括蓄电池传感器,蓄电池传感器设于蓄电池的负极、且连接蓄电池的正负极；蓄电池传感器还连接车辆电气系统,且蓄电池的正负极对应连接车辆电气系统的正负极,蓄电池传感器检测蓄电池的当前电池信息。上述整车电量管理装置及方法,通过添加蓄电池传感器,用于检测蓄电池的当前电池信息,便于实时检测蓄电池的电池信息,从而避免蓄电池出现馈电的现象,避免了传统的缺乏电量监控的技术方案；解决了现有技术中由于缺乏电量监控,导致在OTA升级过程中存在整车馈电风险或无法支持正常升级完成的技术问题。(The invention provides a device and a method for managing the electric quantity of a whole vehicle, wherein the system comprises a vehicle electrical system and a storage battery, and is characterized in that the device for managing the electric quantity of the whole vehicle also comprises a storage battery sensor, and the storage battery sensor is arranged at the negative pole of the storage battery and is connected with the positive pole and the negative pole of the storage battery; the storage battery sensor is also connected with a vehicle electrical system, the anode and the cathode of the storage battery are correspondingly connected with the anode and the cathode of the vehicle electrical system, and the storage battery sensor detects the current battery information of the storage battery. According to the finished automobile electric quantity management device and the finished automobile electric quantity management method, the storage battery sensor is added and used for detecting the current battery information of the storage battery, so that the battery information of the storage battery can be detected in real time conveniently, the phenomenon of feeding of the storage battery is avoided, and the traditional technical scheme lacking electric quantity monitoring is avoided; the technical problem that in the prior art, due to lack of electric quantity monitoring, the whole vehicle feeding risk exists in the OTA upgrading process or normal upgrading completion cannot be supported is solved.)

1. The whole vehicle electric quantity management device comprises a vehicle electrical system and a storage battery, and is characterized by further comprising a storage battery sensor, wherein the storage battery sensor is arranged at the negative electrode of the storage battery and connected with the positive electrode and the negative electrode of the storage battery;

the storage battery sensor is further connected with the vehicle electrical system, the positive electrode and the negative electrode of the storage battery are correspondingly connected with the positive electrode and the negative electrode of the vehicle electrical system, and the storage battery sensor detects the current battery information of the storage battery.

2. The vehicle electric quantity management device according to claim 1, wherein the positive electrode of the storage battery is further connected with the positive electrode of the vehicle electrical system, and the negative electrode of the vehicle electrical system is connected with the negative electrode of the storage battery through the storage battery sensor.

3. The vehicle electric quantity management device according to claim 2, wherein the battery sensor is further provided with a vehicle grounding lap joint, and a negative electrode of the vehicle electrical system is connected with the vehicle grounding lap joint.

4. The vehicle electric quantity management device according to claim 2, wherein circuit protection mechanisms are respectively arranged between the positive electrode of the storage battery and the positive electrode of the storage battery sensor and between the positive electrodes of the vehicle electrical system, and protect a vehicle circuit from being damaged by the circuit protection mechanisms.

5. The vehicle electric quantity management device according to claim 1, wherein the vehicle electric system comprises a system main body and a controller connected with the system main body, the storage battery sensor is connected with the controller through Lin communication, and the controller and the system main body are communicated through Can to realize interaction.

6. A method for managing electric quantity of a whole vehicle, suitable for vehicles equipped with electronic modules that can be upgraded by OTA, characterized in that it uses the device for managing electric quantity of a whole vehicle as claimed in any one of the preceding claims 1 to 5, said method comprising:

acquiring current battery information of a storage battery and target electric quantity required by the OTA upgraded module, wherein the current battery information comprises the current battery electric quantity;

acquiring the safe electric quantity of the storage battery according to the current electric quantity of the battery;

judging whether the difference value between the current battery electric quantity and the safe electric quantity is larger than the target electric quantity or not;

if yes, the OTA upgrading is executed;

and if not, forbidding the OTA upgrading.

7. The vehicle electric quantity management method according to claim 6, wherein the step of performing the OTA upgrade comprises:

and continuously detecting the current battery information in the upgrading process, if the electric quantity of the storage battery is abnormal, interrupting upgrading, and feeding back information of upgrading failure to a client through the T-BOX.

8. The vehicle electric quantity management method according to claim 6,

the current battery information also includes a functional state of the battery and a battery health.

9. The vehicle electric quantity management method according to claim 8, wherein the safe electric quantity can be dynamically adjusted according to the battery health degree.

Technical Field

The invention relates to the technical field of storage battery protection, in particular to a device and a method for managing electric quantity of a whole vehicle.

Background

With the development of the internet of things, the intellectualization of intelligent terminals such as intelligent vehicles, intelligent homes, wearable devices and traditional devices is a future development trend. The OTA upgrading aims to solve the problems of system upgrading and optimization of the intelligent terminal.

OTA upgrade mainly refers to a method for updating firmware in terminal equipment through air interface remote management. The android device can update the operating system, system configuration and the like of the device through OTA upgrade. Therefore, the OTA upgrade enables the equipment manufacturer to send the upgrade package to the terminal equipment of the user through the network, including Wireless Fidelity (WiFi), 3G, 4G and the like, so as to upgrade and optimize the equipment, thereby not only facilitating the user, but also saving the cost for the equipment manufacturer. OTA upgrades are also commonly used in automobiles equipped with OTA-upgradable electronic modules.

In the prior art, in the OTA upgrading process, due to the lack of electric quantity monitoring, the whole vehicle feeding risk exists or normal upgrading can not be supported in the OTA upgrading process.

Disclosure of Invention

Based on this, the invention aims to provide a device and a method for managing electric quantity of a whole vehicle, which are used for solving the technical problem that the whole vehicle feeding risk exists or normal upgrading can not be supported in the OTA upgrading process due to the lack of electric quantity monitoring in the prior art.

The application provides a whole vehicle electric quantity management device on one hand, and the whole vehicle electric quantity management device comprises a vehicle electrical system and a storage battery, and further comprises a storage battery sensor, wherein the storage battery sensor is arranged on a negative electrode of the storage battery and is connected with a positive electrode and a negative electrode of the storage battery;

the storage battery sensor is further connected with the vehicle electrical system, the positive electrode and the negative electrode of the storage battery are correspondingly connected with the positive electrode and the negative electrode of the vehicle electrical system, and the storage battery sensor detects the current battery information of the storage battery.

The application on the other hand also provides a whole vehicle electric quantity management method, which is suitable for a vehicle equipped with an OTA-upgraded electronic module, and adopts the whole vehicle electric quantity management device, and the method comprises the following steps:

acquiring current battery information of a storage battery and target electric quantity required by the OTA upgraded module, wherein the current battery information comprises the current battery electric quantity;

acquiring the safe electric quantity of the storage battery according to the current electric quantity of the battery;

judging whether the difference value between the current battery electric quantity and the safe electric quantity is larger than the target electric quantity or not;

if yes, the OTA upgrading is executed;

and if not, forbidding the OTA upgrading.

According to the finished automobile electric quantity management device and the finished automobile electric quantity management method, the storage battery sensor is added and used for detecting the current battery information of the storage battery, so that the battery information of the storage battery can be detected in real time conveniently, the phenomenon of power feeding of the storage battery is avoided, and the traditional technical scheme lacking electric quantity monitoring is avoided; specifically, the storage battery sensor is arranged on the negative electrode of the storage battery and connected with the positive electrode and the negative electrode of the storage battery; the storage battery sensor is further connected with a vehicle electrical system, and the positive electrode and the negative electrode of the storage battery are correspondingly connected with the positive electrode and the negative electrode of the vehicle electrical system, so that the storage battery sensor detects the current battery information of the storage battery, the battery information monitoring is provided, the phenomenon that the OTA upgrading cannot support the normal upgrading completion due to the fact that the storage battery is fed is avoided, and the technical problem that the whole vehicle feeding risk exists or the normal upgrading completion cannot be supported in the OTA upgrading process due to the lack of electric quantity monitoring in the prior art is solved.

Further, the positive pole of the storage battery is also connected with the positive pole of the vehicle electrical system, and the negative pole of the vehicle electrical system is connected with the negative pole of the storage battery through the storage battery sensor.

Further, the storage battery sensor is further provided with a whole vehicle grounding lap joint position, and the negative electrode of the vehicle electrical system is connected with the whole vehicle grounding lap joint position.

Furthermore, circuit protection mechanisms are respectively arranged between the positive pole of the storage battery and the positive pole of the storage battery sensor and between the positive pole of the vehicle electrical system, and protect the whole vehicle circuit and avoid damaging components of the vehicle body.

Further, the vehicle electrical system comprises a system main body and a controller connected with the system main body, the storage battery sensor is connected with the controller through Lin communication, and the controller and the system main body are communicated through Can to realize interaction.

Further, the step of performing the OTA upgrade comprises:

and continuously detecting the current battery information in the upgrading process, if the electric quantity of the storage battery is abnormal, interrupting upgrading, and feeding back information of upgrading failure to a client through the T-BOX.

Further, the current battery information further includes a functional state of the battery and a battery health degree.

Drawings

Fig. 1 is a schematic diagram of a vehicle electric quantity management device in a first embodiment of the invention;

FIG. 2 is a flowchart of a vehicle electric quantity management method according to a second embodiment of the present invention;

fig. 3 is a flowchart of a vehicle electric quantity management method in a third embodiment of the present invention.

Description of the main element symbols:

vehicle electrical system	100	Controller	110
				Storage battery	200	Battery sensor	300
Circuit protection mechanism	400

The following detailed description will further illustrate the invention in conjunction with the above-described figures.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Several embodiments of the invention are presented in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example one

Referring to fig. 1, a vehicle power management apparatus according to a first embodiment of the present invention includes a vehicle electrical system 100 and a battery 200, and is characterized in that the vehicle power management apparatus further includes a battery sensor 300, and the battery sensor 300 is disposed at a negative electrode of the battery 200 and connected to a positive electrode and a negative electrode of the battery 200;

the battery sensor 300 is also connected to the vehicle electrical system 100, and the positive and negative electrodes of the battery 200 are correspondingly connected to the positive and negative electrodes of the vehicle electrical system 100, and the battery sensor 300 detects current battery information of the battery 200.

In this embodiment, if the EBS detects that the power consumption is abnormal during the upgrade process, the upgrade may be interrupted according to specific situations and information of upgrade failure is fed back to the client through the T-BOX. And then effectively avoid the problem that the battery 200 feed that leads to in the traditional OTA upgrading process can't start the vehicle.

Specifically, the positive electrode of the battery 200 is also connected to the positive electrode of the vehicle electrical system 100, and the negative electrode of the vehicle electrical system 100 is connected to the negative electrode of the battery 200 through the battery sensor 300.

Further, the battery sensor 300 is further provided with a whole vehicle grounding lap joint, and the negative electrode of the vehicle electrical system 100 is connected with the whole vehicle grounding lap joint.

In the embodiment, the EBS is mounted on the negative pole of the storage battery 200, the storage battery 200 supplies power directly, the EBS provides a grounding lap joint of the whole vehicle, and the EBS and the main node realize interaction through LIN communication.

And analyzing the electric quantity according to the data acquired by the EBS, predicting the electric quantity required by upgrading according to the module required to be upgraded at present, controlling an electric quantity threshold, continuously paying attention to the state of the storage battery 200 in the upgrading process, and timely making a coping strategy once the abnormal change of the electric quantity is found.

In this embodiment, the circuit protection mechanism 400 is respectively disposed between the positive electrode of the battery 200 and the positive electrode of the battery sensor 300, and between the positive electrodes of the vehicle electrical system 100, and the circuit protection mechanism 400 protects the entire vehicle circuit from damaging the vehicle body components.

In this embodiment, the circuit protection mechanism 400 is a fuse, and the maximum current allowed to pass through by the circuit protection mechanism 400 is 5A, it should be further explained that the maximum current allowed to pass through may be, but is not limited to 5A, and in other alternative embodiments, other currents may also be allowed, which may be specifically selected according to actual situations.

Specifically, the vehicle electrical system 100 comprises a system body and a controller 110 connected with the system body, the battery sensor 300 is connected with the controller 110 through Lin communication, and the controller 110 and the system body are communicated through Can communication to realize interaction.

In summary, in the entire vehicle electric quantity management device in the above embodiment of the present invention, the storage battery sensor 300 is added to detect the current battery information of the storage battery 200, so as to facilitate detecting the battery information of the storage battery 200 in real time, thereby avoiding the phenomenon of power feeding of the storage battery 200 and avoiding the traditional technical scheme lacking electric quantity monitoring; specifically, the battery sensor 300 is disposed at the negative electrode of the battery 200 and connected to the positive and negative electrodes of the battery 200; the battery sensor 300 is further connected with the vehicle electrical system 100, and the positive and negative electrodes of the battery 200 are correspondingly connected with the positive and negative electrodes of the vehicle electrical system 100, so that the battery sensor 300 detects the current battery information of the battery 200, provides battery information monitoring, avoids the phenomenon that OTA upgrading cannot support normal upgrading completion due to the power feeding of the battery 200, and solves the technical problem that in the prior art, due to lack of power monitoring, the whole vehicle power feeding risk exists or normal upgrading completion cannot be supported in the OTA upgrading process.

Example two

Referring to fig. 2, a method for managing electric quantity of a whole vehicle according to a second embodiment of the present invention is shown, and is applicable to a vehicle equipped with an electronic module capable of being upgraded by an OTA, and the method using the device for managing electric quantity of a whole vehicle includes steps S101 to S105:

s101, obtaining current battery information of a storage battery and target electric quantity required by an OTA upgrading module, wherein the current battery information comprises the current battery electric quantity.

In this embodiment, in order to better and more accurately support the OTA upgrade function, a storage battery sensor (hereinafter abbreviated as EBS) is added to detect the state of the storage battery, such as information of current, voltage, temperature, etc., the current state of the storage battery, SOC (percentage of remaining battery power), SOF (functional state of the battery, which may be understood as a parameter in a control strategy), SOH (battery health, which may be understood as a percentage of the current capacity and factory capacity of the battery), etc., are calculated through an algorithm model integrated inside the EBS, and the current state, SOC (percentage of remaining battery power), SOH (battery health, which may be understood as a percentage of the current capacity and factory capacity of the battery), etc., are interacted with a master node through communication, and then LIN information of the storage battery is sent to a CAN line; the whole vehicle can work out some electric quantity threshold values suitable for OTA upgrading according to the information parameters.

Analyzing electric quantity according to the data acquired by the EBS, predicting the electric quantity required by upgrading according to the module required to be upgraded at present, and controlling an electric quantity threshold value to avoid that the electric quantity of a storage battery is consumed up in the upgrading process, so that a vehicle cannot be started or the module cannot normally finish upgrading; the electric quantity threshold value is dynamically adjusted according to the health degree of the battery, namely, the safe electric quantity can be dynamically adjusted.

And S102, acquiring the safe electric quantity of the storage battery according to the current electric quantity of the battery.

In this embodiment, through the safe electric quantity that acquires the battery, be convenient for fix a position the battery state of battery this moment in real time to through calculating the difference of current battery electric quantity and safe electric quantity, judge whether carry out OTA upgrading to the module, avoid the difference not at reasonable scope, carry out OTA upgrading for the module, lead to having whole car feed risk or can't support normal upgrading completion in OTA upgrading in-process, thereby can the battery information of real-time detection battery.

S103, judging whether the difference value between the current battery electric quantity and the safety electric quantity is larger than the target electric quantity.

If the difference between the current battery capacity and the safety capacity is greater than the target capacity, step S104 is performed, and if the difference between the current battery capacity and the safety capacity is not greater than the target capacity, step S105 is performed.

And S104, performing OTA upgrade on the module needing OTA upgrade.

And S105, prohibiting the OTA upgrade to the module needing the OTA upgrade.

The following describes the present invention with a specific example.

For example, the XXX project theoretically calculates that the OTA upgrade needs 0.5h in the development stage, calculates that the upgrade process needs 10% of battery SOC according to the module power required to be upgraded, and at the normal temperature of 25 ℃, the battery capacity is above 30% to meet the start-up requirement, then the minimum allowable upgrade threshold of the OTA can be set to 55% (reserving the capacity required for software rollback), if the EBS detects that the capacity consumption is abnormal in the upgrade process, the upgrade can be interrupted according to the specific situation, and the information of upgrade failure is fed back to the client through the T-BOX. The method can effectively avoid the problem that the vehicle cannot be started by the storage battery feed in the traditional OTA upgrading process.

In summary, in the vehicle electric quantity management method in the above embodiment of the present invention, the storage battery sensor is added to detect the current battery information of the storage battery, so as to facilitate real-time detection of the battery information of the storage battery, thereby avoiding the phenomenon of power feeding of the storage battery and avoiding the traditional technical scheme lacking electric quantity monitoring; specifically, the storage battery sensor is arranged on the negative electrode of the storage battery and connected with the positive electrode and the negative electrode of the storage battery; the storage battery sensor is further connected with a vehicle electrical system, and the positive electrode and the negative electrode of the storage battery are correspondingly connected with the positive electrode and the negative electrode of the vehicle electrical system, so that the storage battery sensor detects the current battery information of the storage battery, the battery information monitoring is provided, the phenomenon that the OTA upgrading cannot support the normal upgrading completion due to the fact that the storage battery is fed is avoided, and the technical problem that the whole vehicle feeding risk exists or the normal upgrading completion cannot be supported in the OTA upgrading process due to the lack of electric quantity monitoring in the prior art is solved.

EXAMPLE III

Referring to fig. 3, a vehicle electric quantity management method in a third embodiment of the present invention is shown, where the vehicle electric quantity management method in this embodiment is different from the vehicle electric quantity management method in the first embodiment in that:

the step of performing the OTA upgrade includes step S201:

s201, in the upgrading process, the current battery information is continuously detected, if the electric quantity of the storage battery is abnormally consumed, upgrading is interrupted, and information of upgrading failure is fed back to a client through the T-BOX.

The current battery information also includes a functional state of the battery and a battery health.

In summary, in the vehicle electric quantity management method in the above embodiment of the present invention, the storage battery sensor is added to detect the current battery information of the storage battery, so as to facilitate real-time detection of the battery information of the storage battery, thereby avoiding the phenomenon of power feeding of the storage battery and avoiding the traditional technical scheme lacking electric quantity monitoring; specifically, the storage battery sensor is arranged on the negative electrode of the storage battery and connected with the positive electrode and the negative electrode of the storage battery; the storage battery sensor is further connected with a vehicle electrical system, and the positive electrode and the negative electrode of the storage battery are correspondingly connected with the positive electrode and the negative electrode of the vehicle electrical system, so that the storage battery sensor detects the current battery information of the storage battery, the battery information monitoring is provided, the phenomenon that the OTA upgrading cannot support the normal upgrading completion due to the fact that the storage battery is fed is avoided, and the technical problem that the whole vehicle feeding risk exists or the normal upgrading completion cannot be supported in the OTA upgrading process due to the lack of electric quantity monitoring in the prior art is solved.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.