Battery maintenance control system of hybrid electric vehicle and vehicle

Abstract

The utility model discloses a battery maintenance control system of a hybrid electric vehicle and the vehicle. The battery maintenance control system comprises a control unit, an SOC detection unit, a timing unit and an electric quantity acquisition unit, the SOC detection unit is used for collecting the SOC value of a battery of the automobile, and the output end of the SOC detection unit is connected to the control unit; the timing unit and the electric quantity acquisition unit are both connected to the input end of the control unit and are used for sending the timing time which starts to be calculated after the battery is fully charged and the charging electric quantity of the battery to the control unit; the output end of the control unit is connected to the reminding unit, and the control unit is used for controlling the reminding unit to send out reminding information when the timing time reaches the time threshold value and the charging electric quantity reaches the electric quantity threshold value. The scheme is suitable for battery charging maintenance reminding of the hybrid electric vehicle, whether a user is reminded to complete one-time full charging or not is judged through the two indexes of the time and the accumulated charging amount, so that full charging reminding is more reasonably conducted on the hybrid electric vehicle, and the SOC estimation error caused by the fact that the hybrid electric vehicle is not fully charged for a long time is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automobile maintenance reminding, especially to a hybrid power battery maintenance control system and automobile. BACKGROUND

[0002] New energy vehicles include pure electric vehicles, hybrid electric vehicles and the like, and taking a hybrid electric vehicle powered by a power battery and fuel as an example, the hybrid electric vehicle has both the electric energy advantage of an electric vehicle and the quick energy supplement advantage of a fuel vehicle, and thus is widely accepted by users among new energy vehicle types.

[0003] However, due to the working mode of the hybrid vehicle, during use of the hybrid electric vehicle, the power battery is always in a discharging state and the hybrid power system supplements power to the battery to maintain a set forced power maintaining point. Long-term work in this mode will cause long-term accumulation of estimation accuracy error of the power battery SOC, and in severe cases, will cause overcharging / overdischarging of the battery, thereby affecting the service life of the battery and endangering the safety of the vehicle. Generally, vehicle maintenance requires periodic full charging maintenance of the hybrid vehicle, but due to various reasons, the hybrid vehicle can also operate normally without charging, resulting in that full charging is not necessary for the user, and thus the user cannot charge as required.

[0004] The prior art generally adopts accumulated time from the last full charging for a pure electric vehicle, and if the accumulated time does not reach a set time threshold, an alarm is issued to remind the user to perform full charging. However, this operation is too simple and prone to error, for example, if the user does not use the vehicle or uses the vehicle rarely within the set time threshold, the reminder to fully charge the battery is not appropriate at this time; or if the vehicle is frequently used within the set time threshold, the fixed time threshold cannot well reflect the use of the vehicle for reminding, and moreover, the reminder scheme for the pure electric vehicle cannot be directly applied to the hybrid vehicle, because the battery of the hybrid vehicle is also charged by the engine system. SUMMARY

[0005] The utility model aims at overcoming the defects of the prior art, and provides a battery maintenance control system and automobile for a hybrid electric vehicle, which is suitable for battery charging maintenance reminding of the hybrid vehicle, and determines whether to remind the user to perform full charging by using two indexes of time and accumulated charging amount, so that full charging of the hybrid vehicle is more reasonably reminded, and SOC estimation error caused by long-term non-full charging of the hybrid vehicle is reduced.

[0006] In order to achieve the above object, the utility model discloses the technical scheme for a kind of battery maintenance control system of hybrid electric vehicle, including control unit, SOC detection unit, timing unit, electric quantity acquisition unit;The SOC detection unit is used to collect the SOC value of the battery of automobile, and its output end is connected to control unit;The timing unit, electric quantity acquisition unit are all connected to the input end of control unit, to send the timing time after full charging starts and the charging capacity of battery to control unit;The output end of control unit is connected to reminding unit, to control reminding unit to send reminder information after timing time reaches time threshold and charging capacity reaches electric quantity threshold.

[0007] The control unit is a battery management unit BMS.

[0008] The reminding unit includes display module and or voice module, for sending graphic text reminder and or voice reminder.

[0009] The control unit is connected with reset switch, and the control unit closes reminder information according to reset switch signal.

[0010] The control unit is connected with charging gun connection detection unit, and the charging gun connection detection unit is used to detect whether charging gun is connected to vehicle charging port;The control unit controls the working state of reminding unit according to the data collected by timing unit and electric quantity acquisition unit after charging gun is inserted into vehicle charging port.

[0011] The control unit is connected to background server through Internet of Vehicles, to upload reminder information.

[0012] The background server is connected with user terminal device, to send reminder information to user terminal device remotely.

[0013] A hybrid electric vehicle, the vehicle includes the battery maintenance control system of hybrid electric vehicle.

[0014] The utility model has the advantages of being suitable for battery charging maintenance reminder of hybrid vehicle, and reminding user to complete full charging by two indexes of time and accumulated charging capacity, so that full charging reminder of hybrid vehicle is more reasonable, and SOC estimation error caused by long time of hybrid vehicle not being full of electricity is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] The content expressed by each drawing of the present application specification and the mark in the drawing are briefly explained as follows:

[0016] Figure 1 It is the principle diagram of the battery maintenance control system of the utility model. DETAILED DESCRIPTION

[0017] The specific embodiments of the present application will be further described in detail with reference to the drawings, by describing the optimal embodiments.

[0018] The scheme is aimed at reminding the maintenance of the battery in the hybrid vehicle, mainly aiming at the reminder of the full charge of the battery, because the system will perform verification and error correction at each full charge, so that the SOC calculation of the system is more accurate when the hybrid vehicle is working, avoiding the defect of poor driving experience caused by too large SOC error, therefore, the time interval and the cumulative charging power are used to judge whether to issue a full charge reminder for the hybrid vehicle, and a reset switch is provided to turn off the reminder, improving the reliability, scientificity and user cancelability of the reminder, and improving the user experience of the hybrid vehicle.

[0019] As shown in Figure 1 A battery maintenance control system of a hybrid vehicle, comprising a control unit, an SOC detection unit, a timing unit, and a power acquisition unit; the SOC detection unit is used to acquire the SOC value of the battery of the vehicle, and its output end is connected to the control unit; the timing unit and the power acquisition unit are both connected to the input end of the control unit, to send the timing time and the charging power of the battery after full charge to the control unit; the output end of the control unit is connected to the reminding unit, to control the reminding unit to issue a reminder information when the timing time reaches the time threshold and the charging power reaches the power threshold.

[0020] The SOC detection unit is used to detect the value of SOC in the hybrid vehicle in real time, which can use the power data collected in the battery management system (BMS) to realize the acquisition and use of SOC data, and the data is sent to the control unit.

[0021] The timing unit uses a timing chip to realize timing, and its output end is connected to the control unit; the control unit resets the timing chip to 0 when the SOC is full and detects that the SOC is 100% according to the collected SOC data value, and sends the timing data to the control unit in real time.

[0022] The power acquisition unit can use the ampere-hour integration principle to form a power calculation unit, to realize the statistics of the power charged into the battery, or use an integrated micro power meter to collect and count the power data charged into the battery of the hybrid vehicle, and the collected and counted power data is sent to the control unit.

[0023] The control unit can be implemented by a BMU unit in a battery management unit (BMS) to obtain the SOC data and the time and power data when the SOC starts from 100%. The control unit obtains the SOC data, and when it is detected that the SOC value is equal to 100%, it is indicated that a full charging operation is completed at this time, at which time the control timing unit starts timing from 0 and the power calculation unit starts counting the charging power of the battery from 0. A time threshold and a power threshold are set in advance, and before the time threshold and the power threshold are reached, if it is detected that the SOC reaches 100%, the timing and power calculation are reset to zero and start to calculate again; when the control unit determines that the time and the power both reach the corresponding time threshold and the power threshold, it is determined that a full charging operation should be performed at this time, at which time a reminder signal needs to be sent to the user to remind the user to perform a full charging operation, and at this time the control unit controls the reminder unit to send a reminder signal to remind the user.

[0024] The purpose of the reminder unit is to send a full charging reminder to remind the user, which includes a display module and / or a voice module for sending text and / or voice reminders. The reminder unit can achieve text or voice reminders for the user by multiplexing the display screen, instrument screen and vehicle-mounted voice interaction system of the vehicle.

[0025] In a preferred embodiment of the present application, when the timing time and the charging power both reach the threshold, a reminder signal is sent to remind the user to perform a full charging operation. In order to meet the user's current situation of inconvenient charging and not wanting to always send reminders, a reset switch is provided. The control unit is connected with the reset switch, and the control unit closes the reminder information according to the reset switch signal. When the control unit controls the reminder unit to send a reminder, if the reset switch signal is detected, the reminder information is closed, thereby providing the user with as much right to choose independently as possible. The reset switch can be implemented by a button or a key, which can be a physical key or a virtual key integrated in a touch screen, thereby meeting the user's needs and current ideas as much as possible. In order not to affect the driving feeling of the time display, a long-press 3-5S external reset switch is provided to reset the reminder unit, at which time the reminder information sent by the reminder unit is closed. The reminder information is a reminder for the user to charge the battery, such as "please complete a full charging as soon as possible to improve the performance of the battery", which can be displayed to the user in the form of text and / or voice.

[0026] In another preferred embodiment of the present application, the control unit is connected with a charging gun connection detection unit, which is used to detect whether the charging gun is connected to the vehicle charging port; the control unit controls the working state of the reminding unit according to the data collected by the timing unit and the electric quantity collection unit after the charging gun is inserted into the vehicle charging port. The charging gun connection detection unit judges whether the vehicle is inserted or connected with the charging gun by detecting the CC, CP and other signals of the charging gun. When the charging gun is inserted or connected, the full charging reminder is sent out during charging, which is convenient for the user to perform the corresponding operation in time. Especially in the case that the reset switch closes the reminding information, the reminder is sent out after the charging connection, which reduces the forgetting of the driver after the reset of the reminding information, so as to better send out the reminder and avoid missing the reminder.

[0027] In order to remotely send the full charging information of the user and the background traceability, the reminding information is stored in the background server TSP and forwarded to the user's mobile terminal, so as to realize the purpose of background traceability and remote acquisition of the user. Under this purpose, the control unit is connected to the background server through the Internet of vehicles, and is used to upload the reminding information. The background server is connected with the user terminal device, and is used to remotely send the reminding information to the user terminal device.

[0028] The present scheme also provides a hybrid electric vehicle, which comprises the battery maintenance control system of the hybrid electric vehicle in the above-mentioned embodiments. Since all the features of the above-mentioned embodiments are possessed, all the advantages thereof are possessed, including: the battery charging maintenance reminder suitable for the hybrid electric vehicle, the two indexes of time and cumulative charging quantity are used to judge whether the user is reminded to complete a full charging, so that the full charging reminder of the hybrid electric vehicle is more reasonable, and the SOC estimation error caused by the long time of not full charging of the hybrid electric vehicle is reduced.

[0029] The present scheme effectively solves the problem of untimely maintenance and traceability of the hybrid electric vehicle in use. The maintenance execution and traceability problem is solved by the strategy mode of the existing components without affecting the driving experience. The state of the battery system of the vehicle of the user is controllable, and the safety of the vehicle is controllable.

[0030] Obviously, the specific implementation of the present application is not limited by the above-mentioned mode, and various non-essential improvements adopting the method concept and technical scheme of the present application are within the protection scope of the present application.

Claims

1. A battery maintenance control system for a hybrid vehicle, characterized by: The battery maintenance control system of the hybrid electric vehicle comprises a control unit, an SOC detection unit, a timing unit and an electric quantity acquisition unit; the SOC detection unit is used for acquiring the SOC value of the battery of the vehicle, and an output end thereof is connected to the control unit; the timing unit and the electric quantity acquisition unit are both connected to an input end of the control unit, so as to send the timing time and the charging electric quantity of the battery after full charging to the control unit; and an output end of the control unit is connected to a reminding unit, so as to control the reminding unit to send a reminding information when the timing time reaches a time threshold value and the charging electric quantity reaches an electric quantity threshold value.

2. The battery maintenance control system for a hybrid vehicle according to claim 1, characterized by: The control unit is a battery management unit BMS.

3. The battery maintenance control system for a hybrid vehicle according to claim 1, characterized by: The reminding unit comprises a display module and / or a voice module, and is used for sending a graphic and text reminding and / or a voice reminding.

4. The battery maintenance control system for a hybrid vehicle according to claim 1, characterized by: The control unit is connected with a reset switch, and the control unit closes the reminding information according to the reset switch signal.

5. The battery maintenance control system for a hybrid vehicle according to any one of claims 1 to 4, characterized in that: The control unit is connected with a charging gun connection detection unit, the charging gun connection detection unit is used for detecting whether the charging gun is connected to the charging port of the vehicle; and the control unit controls the working state of the reminding unit according to the data acquired by the timing unit and the electric quantity acquisition unit after the charging gun is inserted into the charging port of the vehicle.

6. The battery maintenance control system for a hybrid vehicle according to any one of claims 1 to 4, characterized by: The control unit is connected to a background server through the Internet of Vehicles, so as to upload the reminding information.

7. The battery maintenance control system for a hybrid vehicle according to claim 6, characterized by: The background server is connected with a user terminal device, so as to remotely send the reminding information to the user terminal device.

8. A hybrid vehicle characterized by comprising: The vehicle comprises the battery maintenance control system of the hybrid electric vehicle according to any one of claims 1-7.

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